ИМПЛАНТИРУЕМЫЕ КОНСТРУКЦИИ ДЛЯ ХИРУРГИЧЕСКИХ КАРТРИДЖЕЙ СО СКОБКАМИ

Изобретение относится к медицине и может быть использовано для наложения хирургического скобочного шва. Картридж содержит корпус, панель с покрывающим слоем и съемные крепежные элементы, которые хранятся внутри корпуса. Корпус имеет продольный паз для приема режущего элемента. Слой включает первый слой и второй слой. Первая часть слоя проходит над пазом. Вторая часть расположена латерально по отношению к первой части и пазу. Характеристики первой части и второй части отличаются. Первая часть может быть толще, чем вторая часть или первая часть может быть жестче, чем вторая часть. Первая часть жестко поддерживает ткани, которые примыкают к продольному разрезу, проходящему через ткани и выполненному с помощью режущего элемента. Вторая часть, расположенная дальше от продольного разреза в тканях, может гибко поддерживать такие ткани. 5 н. и 22 з.п. ф-лы, 90 ил.

ЭЛЕКТРОХИРУРГИЧЕСКИЙ ИНСТРУМЕНТ

... 1. Электрохирургический инструмент, имеющий проксимальный конец и дистальный конец, содержащий:- узел браншей на дистальном конце, включающий в себя первую браншу и вторую браншу, подвижную относительно нее, при этом бранши могут перемещаться одна относительно другой из открытого положения в положение захвата, причем в упомянутом положении захвата бранши выполнены с возможностью быть расположенными ближе одна к другой, чем в открытом положении, причем каждая бранша содержит по меньшей мере один электрод, выполненный с возможностью соединения с источником электропитания, и электроды обеих браншей выполнены с возможностью взаимодействия для заваривания ткани тела, удерживаемой между браншами в положении захвата;- приводное средство для перемещения браншей из открытого положения в положение захвата; и- средство для ограничения ширины смыкания браншей, когда их перемещают из открытого положения в положение захвата,отличающийся тем, что упомянутое средство содержит множество ограничительных ...

ХИРУРГИЧЕСКАЯ СИСТЕМА ДЛЯ СОЕДИНЕНИЯ ТКАНИ ТЕЛА И СПОСОБ УПРАВЛЕНИЯ УКАЗАННОЙ ХИРУРГИЧЕСКОЙ СИСТЕМОЙ

... 1. Хирургическая система (10) для соединения и/или рассечения ткани тела с помощью хирургического инструмента (12), имеющего две бранши (16, 18) инструмента, каждая из которых снабжена, по меньшей мере, одним ВЧ электродом, носителем которых служит держатель бранши, предпочтительно рукоятка инструмента для открывания и закрывания браншей (16, 18) инструмента, и режущий элемент (22), носителем которого одновременно служит держатель бранши, предпочтительно рукоятка инструмента, отдельно от браншей (16, 18) инструмента, в которой хирургический инструмент (12) оборудован удерживающим средством (34) в форме блокировочного механизма режущего элемента, который в неактивированном или нерабочем состоянии механически полностью блокирует движение резания режущего элемента (22) и может быть активно переведен в разблокированное состояние, чтобы позволить движение резания, и в которой активное разблокирование удерживающего средства (34) возможно только тогда, когда заранее заданный цикл соединения ткани ...

РАСПОЛОЖЕНИЕ СЛОЕВ ДЛЯ ХИРУРГИЧЕСКИХ КАРТРИДЖЕЙ СО СКОБКАМИ

ELEKTROCHIRURGISCHE ELEKTRODE

Bewegliches schaltbares Elektrochirurgiehandstück

RADIO FREQUENZ ABLATION SYSTEM MIT TRACKING SENSOR

Ein RF Ablationssystem hat einen hohlen leitenden Koaxialkabel mit inneren und äußeren koaxialen rohrförmigen Leitungen, und ein Ablations-Element am distalen Ende des Kabels zur Abgabe von Radiofrequenzenergie einschließlich von Mikrowellen in die Ziel-Körpergewebe angebracht. Die Innenleitung hat ein zentrales Lumen der sich zumindest bis zum Ablations-Element erstreckt. Mindestens eine elektromagnetische Spule mit einem magnetischen Kern befinded sich im mittleren Itlmen am distalen Ende des Kabels an der distalen Spitze des Kabels und mit einer Signalverarbeitungseinheit. Ein elektromagnetisches Feld Generator ist in der Nähe eines zu behandelnden Patienten positioniert und erzeugt ein elektromagnetisches Feld, das eine Spannung in der Sensorspule induziert. Die Signalverarbeitungseinheit verwendet die induzierte Spannung, um die Position und Orientierung des distalen End-Abschnitt oder der Spitze des Katheters in den Körper eines Patienten zu berechnen.

ELEKTRO-CHIRURGISCHES GERÄT ZUR ENTFERNUNG VON TUMOREN AUS HOHLORGANEN DES KÖRPERS.

Werkzeug für laparaskopische Chirurgie

Vorrichtung zum Behandeln von Gewebe eines Gebärmutterhalses

Vorrichtung (1) zum Behandeln von Gewebe des Gebärmutterhalses (100) einer Patientin, umfassend: eine Handhabe (2); einen elektrisch beheizbaren Behandlungskopf (3); und einen Schaft (4), der sich in einer Erstreckungsrichtung (E) von der Handhabe (2) zu dem Behandlungskopf (3) erstreckt und diese verbindet, gekennzeichnet durch einen Abstandshalter (20), der dazu konfiguriert ist, beim Einführen des Schafts (4) in die Vagina (110) einer Patientin eine Berührung des Behandlungskopfes (3) mit den Seitenwänden der Vagina (110) zu verhindern, wobei zwischen dem Behandlungskopf (3) und dem Abstandshalter (20) eine thermische Barriere vorliegt.

Instrument für die Hochfrequenzchirurgie zum Schneiden und/oder Koagulieren mit HF-Strom

Resectoscope

A resectoscope has an electrode (29) by means of which an affected part is removed by cauterization or fulguration on excitation with high-frequency current. A sliding body (21) in which there is formed an electrode-receiving opening (30), in which an energy connection (32) is firmly attached, is displaceable along the resectoscope. The near end of the electrode is inserted in the electrode-receiving opening and fastened on the connection. An elastic seal, whose inner diameter is smaller than the outer diameter of an insulating coating (31) with which the electrode is provided, is provided on the inlet of the electrode-receiving opening. As a result, penetration of water droplets or blood into the electrode-receiving opening (30) is prevented. ...

VORRICHTUNG ZUM KOAGULIEREN MITTELS HF-STROM

Coagulation forceps

The coagulation forceps of the type in which a rod for the opening and closing of forceps jaws by reciprocal axial movement thereof extends axially through an externally insulated shaft, and is actuated by a handle comprising a pair of branches which are resiliently biassed apart from one another. To simplify construction while ensuring that the handle is well insulated from the HF supply to the forceps shaft, the two branches of the handle are connected to respective parts of the forceps by separately produced insulating elements. One of these elements is connected to the proximal end of the actuating rod while the other is mounted on the shaft and encloses a connector for the HF supply.

Electrosurgical instrument

An electrosurgical instrument 200 comprising an electrosurgical device 202 within a catheter 204 insertable through an instrument channel of a scoping device. The electrosurgical device comprises a coaxial cable 206 terminating in a radiating tip 208 of smaller diameter than the cable and employing a radiating needle 212. The electrosurgical device is movable between a deployed position in which the needle protrudes out of the catheter, and a retracted position in which the needle is contained within the catheter. Also taught is a handpiece (1000, Fig 10) for controlling movement of an electrosurgical device along a catheter. The handpiece comprises a first section (1002, Fig 10) connectable to an instrument port of a scoping device, a second section (1008, Fig 10), movable along a length of the first section, and capable of holding the catheter. Relative movement between the first and second sections controls the length of catheter that extends out the handpiece. A third section (1016, ...

Medical laser device

Microwave amplification apparatus for an electrosurgical instrument

A microwave amplification apparatus 300 for an electrosurgical instrument, apparatus 300 comprising: a cable assembly 306 whose proximal end is connected a launch portion 302 that includes a DC source 316 and a microwave source 314 to respectively launch a DC signal and a microwave signal 310 along the cable assembly 306; and connected to a distal end of the cable assembly 306, a distal amplification portion 304 comprising a power amplifier 320 receiving the microwave signal to be amplified, where the amplification portion 304 applies the DC signal as a drain voltage VDD across the power amplifier 320. Power amplifier 320 has an output to deliver an amplified microwave signal 318 into biological tissue via a structure 308. Preferably, amplification apparatus 300 comprises a gate voltage extraction module 332 to extract a bias voltage VGG from the DC signal to apply to a gate of the power amplifier 320. Gate-voltage extraction-module 332 may comprise a DC-DC buck converter. Gate-voltage ...

Electrosurgical instruments

Electronsurgical instrument

User interface and lock features for positioning multiple componenets within a body

Electrosurgical instrument

An electrosurgical instrument comprising a coaxial feed cable 202 comprising inner and outer conductors 204, 206 separated by a dielectric 208, the feed cable conveying microwave and/or radiofrequency energy. An instrument tip 214 is disposed at a distal end of the coaxial feed cable to receive the microwave / radiofrequency energy. A fluid channel 210 conveys fluid to the instrument tip. The instrument tip further comprises a radiating structure 218, 220 for radiating the energy into biological tissue, and a hollow needle 234 in fluid communication with the fluid channel, the hollow needle being arranged to deliver fluid from the fluid channel to a treatment site. In one arrangement the hollow needle is electrically connected to the outer conductor to ground the hollow needle. The radiating structure may additionally or alternatively be coated with an insulating non-stick material.

ELECTRICALSURGICAL EQUIPMENT FOR THE VERURSAHEN OF NECROSIS

ANTI-SEA-THING ARRANGEMENT

ELECTRICALSURGICAL PROBE WITH A SHANK WITH A CHANNEL FOR LIQUIDS

NUCLEAR BIO PSI I/O ORDER

SYSTEMS AND PROCEDURES FOR THE ELECTRICALSURGICAL FABRIC TREATMENT IN PRESENCE ELECTRICAL OF LEADING LIQUIDS

LASER APPLICATION SYSTEM AND METHOD FOR USE IN THE EYE

ELECTRICALSURGICAL, A BLADE AND GAS FUNCTION COMBINING HANDSTÜCK

RESEKTOSKOP.

ABLATION DEVICE WITH SEVERAL ELECTRODES

EQUIPMENT FOR ABLATION WITH BF

IMPEDANCE-STEERED DEVICE FOR THE ABLATION OF FABRIC

ELECTRODES FOR THE PRODUCTION OF CERTAIN SAMPLES OF PATHOLOGICALLY CHANGED FABRIC

POLYPEKTOMIEINSTRUMENT WITH LOOP

ARRANGEMENT FOR THE TREATMENT OF THE SKIN

DEVICE FOR PURPOSEFUL HEATING UP

MEDICAL PROBE WITH MECHANISM FOR OPTICAL OBSERVATION

ELECTROMAGNETIC ENERGY OF USING CELL NECROSIS APPARATUS

ABLATION DEVICE WITH SEVERAL ELECTRODES

Forceps drive shaft

Surgical forceps can include a drive pin an outer tube, a first jaw, a second jaw, and an inner tube. The outer tube can define a longitudinal axis. The first jaw can be pivotably connected to the outer tube. The first jaw can include a pair of flanges located at a proximal portion of the first jaw, where each flange can include a track receiving the drive pin. The inner tube can be located within the outer tube and can extend along the longitudinal axis. The inner tube can include a pair of arms extending from a distal portion of the inner tube. The drive pin can be securable to the pair of arms. The inner tube can be translatable within the outer tube to drive the drive pin along the tracks to move the second jaw between open and closed positions.

Forceps motion transfer assembly

Forceps including a frame and a motion transfer assembly to transfer forces from or more actuators to an end effector. The motion transfer assembly can include a body having a passageway, a drive shaft extending through the passageway, and a drive link. The body and the drive shaft slidable with respect to the frame, and the body rotationally fixed to the drive shaft to transfer a rotational input received from a first actuator into a rotational motion of the drive shaft relative to the frame. The drive link operably coupled to the frame and the body to transfer a force received from a second actuator into a linear motion of the body and the drive shaft relative to the frame.

Surgical instrument for minimally invasive aspiration of tissue

Method and apparatus for electrosurgically obtaining access to the biliary tree with an adjustably positionable needle-k nife

Electrosurgical device for cell necrosis induction

A catheter sheath

Open vessel sealing instrument with cutting mechanism and distal lockout

OPEN VESSEL SEALING INSTRUMENT WITH CUTTING MECHANISM AND DISTAL LOCKOUT Abstract An open electrosurgical forceps (10) for sealing tissue including a pair of first s and second shaft members (12a, b) each having a jaw member (110, 120) disposed at a distal end (16a, b). The jaw members (110, 120) are movable from a first position in spaced relation relative to one another to a subsequent position wherein the jaw members (110, 120) cooperate to grasp tissue therebetween. Each of the jaw members (110, 120) includes an electrically conductive sealing plate (112, 122) for communicating lo electrosurgical energy through tissue held therebetween. At least one of the jaw members (110, 120) includes a knife channel (115) defined along a length thereof which is dimensioned to reciprocate a cutting mechanism (80) therealong for cutting tissue disposed between jaw members (110, 120). An actuator (40) having a rack and pinion system advances the cutting mechanism (80) from a first position wherein ...

Electrosurgical rotating cutting device

An electrosurgical cutting device and method thereof for incising tissue are disclosed. The electrosurgical cutting device includes an asymmetrical cutting element that is affixed to a distal end of a torque cable. The cutting element is disposed within an end cap and is axially movable between a retracted position and an extended position. Rotation of the torque cable during a procedure allows the cutting element to rotationally align with and hook the target tissue onto the cutting element. An elongate member of the cutting element selectively lifts the target tissue away from surrounding tissue and structures. Having lifted the tissue away the surrounding tissue and structures, incision can occur.

Medical probe device with optic viewing capability

Surgical instrument with interchangeable micro-tips

SURGICAL INSTRUMENT WITH INTERCHANGEABLE MICRO-TIPS A surgical instrument (10) includes a housing (20), a shaft (60) extending from the housing (20), and an end effector assembly (100) that is disposed at a distal end (62) of the shaft (60). The end effector assembly (100) includes a tubular portion (110), a connection arm (130), and a toolbox (140). The tubular portion (110) defines a lumen (112) and the connection arm (130) is extendable from the lumen (112). The toolbox (140) has a micro-tip (152) that is configured to be selectively secured to a connection tip (136) of the connection arm (130). The toolbox (140) has a transport configuration where the toolbox (140) is disposed within the lumen (112) and a deployed configuration where the toolbox (140) is disposed entirely outside of the lumen (112). -C= I.Af tz 0%7 ...

Devices and methods for cutting tissue

Various medical devices and methods for cutting, evacuating and/or performing work on tissue are provided. The devices and methods may utilize a reciprocating mechanism or motor powered by suction from a vacuum source. The medical devices and methods may be used on tissue in various regions of a patient's body and for treating various conditions, e.g., for performing a polypectomy.

Precision placement of ablation apparatus

Thermal treatment device including expansion element

Method and apparatus for advancing catheters

MICROWAVE AMPLIFICATION APPARATUS FOR AN ELECTROSURGICAL INSTRUMENT

Various embodiments provide a microwave amplification apparatus for an electrosurgical instrument. The microwave amplification apparatus comprises: a cable assembly; a proximal launch portion, and a distal amplification portion. The proximal launch portion is connected to a proximal end of the cable assembly, and the proximal launch portion comprises: a DC source configured to launch a DC signal along the cable assembly, and a microwave source configured to launch a microwave signal along the cable assembly. The distal amplification portion is connected to a distal end of the cable assembly, and the distal amplification portion comprises: a power amplifier configured to receive the microwave signal as an input signal to be amplified. The distal amplification portion is configured to apply the DC signal as a drain voltage across the power amplifier. Also, the power amplifier has an output that is connectable to deliver an amplified microwave signal to a structure that is configured to deliver ...

ELECTROSURGICAL TIP

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to an electrosurgical surgical tip that includes a conductive and lowprofile cutting surface to provide high current density radiofrequency energy with minimal thermal damage to surrounding tissues. For example, an electrosurgical tip of the present disclosure may include a ring of conductive material sputter-coated around a distal opening of a non-conductive base component and a strip of conductive material sputter-coated along a longitudinal axis of the non-conductive base component.

DISPOSABLE ELECTROSURGICAL INSTRUMENT

TREATMENT OF DERMAL GLANDS BY THE APPLICATION OF NON-THERMAL ENERGY

Described herein are methods and apparatuses for reducing or eliminating skin glands (e.g., sebaceous, eccrine and apocrine) with an electric treatment. Also described herein are methods for treating and/or preventing a disorder of a skin gland. For example, described herein are methods of treating sebaceous hyperplasia.

HAND-HELD INSTRUMENT WITH BODY-SWIVEL

A hand-held instrument has a distal section and a proximal section joined by an attachment piece. The attachment piece enables the distal section to be swiveled/rotated independent of the proximal section. A tip, such as an electrode tip, is coupled to the distal end of the distal section and rotates with the distal section, enabling a user to adjust the rotational orientation of the tip during use.

IMPLANTABLE ARRANGEMENTS FOR SURGICAL STAPLE CARTRIDGES

A fastener cartridge can comprise a cartridge body comprising a deck, fasteners removably stored within the cartridge body, and a layer covering the deck. The cartridge body can comprise a longitudinal slot which can be configured to receive a cutting member therein. The layer can comprise a first portion extending over the slot and a second portion located laterally with respect to the first portion and the slot. The first portion can comprise different properties than the second portion. For instance, the first portion can be thicker than the second portion. The first portion could also be stiffer than the second portion, for example. The first portion can rigidly support the tissue which is adjacent to a longitudinal cut extending through the tissue which is created by the cutting member. The second portion, positioned further away from the longitudinal cut in the tissue, can flexibly support such tissue.

SURGICAL INSTRUMENT WITH INTERCHANGEABLE MICRO-TIPS

A surgical instrument includes a housing, a shaft extending from the housing, and an end effector assembly that is disposed at a distal end of the shaft. The end effector assembly includes a tubular portion, a connection arm, and a toolbox. The tubular portion defines a lumen and the connection arm is extendable from the lumen. The toolbox has a micro-tip that is configured to be selectively secured to a connection tip of the connection arm. The toolbox has a transport configuration where the toolbox is disposed within the lumen and a deployed configuration where the toolbox is disposed entirely outside of the lumen.

RF ABLATION PROBE ARRAY ADVANCING DEVICE

An array advancing device that attaches to a tissue ablation probe compri ses a housing sized for receiving the handle and reciprocating plunger of th e ablation probe, the housing having a proximal section configured to engage the plunger, and a distal section configured to engage the handle, the prox imal housing section being controllably moveable relative to the distal hous ing section to thereby controllably move the plunger relative to the handle.

BLADE DEPLOYMENT MECHANISMS FOR SURGICAL FORCEPS

A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.

RECIPROCATING SURGICAL INSTRUMENT

A surgical rasping system functional in multiple orthopedic applications, including but not limited to shoulder, knee, hip, wrist, ankle, spinal, or other joint procedures. The system may comprise a tissue removal member (502) with a rasping head (508) which may be low profile and offer a flat cutting/rasping surface, or with a cutting head with at least one cutting edge. The tissue removal member is configured to be driven by an attached hub that translates a rotational movement into a reciprocating motion. Suction for removal of bone fragments or other tissues is provided through an opening spaced apart from or adjacent to the rasping surface. A radiofrequency ablation (RF) electrode may be carried on the rasping system to provide ablation or coagulation of soft tissues.

DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

Systems, methods and devices for the treatment of tissue are disclosed. A system includes an elongate tube with a distal portion. A treatment element is positioned on the elongate tube distal portion, the treatment element constructed and arranged to treat target tissue. In one embodiment, gastrointestinal tissue is modified for the treatment of diabetes.

ADJUSTABLE ELECTROSURGICAL PENCIL

An electrosurgical tool or pencil for use in performing surgery includes an elongate, non-conductive housing having an elongate passage extending from a front end. An elongate electrode is mounted in the passage and slidable therein and has an operating forward section, an insulated central section, and an non-insulated rear section. The electrode can be adjusted in its longitudinal direction by a user. A conducting member is mounted on the rear section of the electrode and an elongate conducting strip is fixedly mounted in the elongate passage adjacent one side of the electrode and parallel thereto. The strip is supported by the housing so as to be in electrical contact with the conducting member which is slidable relative to the conducting strip. A circuit board for controlling the tool's operation is mounted in the housing and connected to the conducting strip.

MOTOR DRIVEN ELECTROSURGICAL DEVICE WITH MECHANICAL AND ELECTRICAL FEEDBACK

An electrosurgical device comprises an end effector, a cutting member, and en electromechanical driver. The end effector comprises a pair of jaws that clamp tissue. The jaws include electrodes that deliver RF energy to clamped tissue. The cutting member cuts tissue clamped between the jaws. The electromechanical driver drives the cutting member. A control module commands the electromechanical driver, and regulates the delivery of RF energy to the electrodes, based on a combination of user input and feedback signals from the electrodes and from the electromechanical driver. The device may provide tactile feedback to the user through the user input feature, based on a load encountered by the cutting member. The device may alert the user when the exterior of end effector makes incidental contact with tissue, to avoid inadvertently burning the tissue. The device may include a removable battery pack to power the electromechanical driver and the electrodes.

MODULAR SURGICAL INSTRUMENTS WITH CONTAINED ELECTRICAL OR MECHANICAL SYSTEMS

A surgical instrument includes an elongated shaft module and a handle module selectively separable from one another. The elongated shaft module includes an elongated shaft member and a pair of jaw members supported at a distal end of the elongated shaft member, at least one of the jaw members moveable relative to the other jaw member between open and closed positions. The handle module includes a housing including an opening extending longitudinally therethrough. The opening is dimensioned to permit passage of the pair of jaw members in the closed position. The handle module also includes a movable handle movable relative to the housing to move the pair of jaw members between open and closed positions, and a lock to secure the elongated shaft module in place within the housing.

DEVICES AND METHODS FOR CUTTING TISSUE

Various medical devices and methods for cutting, evacuating and/or performing work on tissue are provided. The devices and methods may utilize a reciprocating mechanism or motor powered by suction from a vacuum source. The medical devices and methods may be used on tissue in various regions of a patient's body and for treating various conditions, e.g., for performing a polypectomy.

COMBINATION LAPAROSCOPIC ELECTROSURGICAL INSTRUMENT AND PROBE

TITLE: COMBINATION LAPAROSCOPIC ELECTROSURGICAL INSTRUMENT AND PROBE A combination laparoscopic electrosurgical instrument and probe and method of using same are disclosed. An instrument head is carried on an electrode and is selectively moveable between expanded and retracted positions to permit the device to be used as a probe when the electrode is completely retracted. A fluid passageway also is provided for irrigation/suction purposes.

Method and Apparatus for Advancing Catheters

A catheter comprises a catheter body (10) having a proximal end, a distal en d, and an electrode array disposed near he distal end (12). The electrode array includes a plurality of isolated electrode terminals (18). The electrode array and a common electrode (16) are connected to a high frequency power supply (32) an c9 the common electrode (16) may be located on the catheter, may be secured separately to a patient's skin, or may be formed as part of a movable guidewire. By contacting the electrode array against a target location in the patient's body, the target location may be selectively heated, with the current density being contacted at the points of contact between th e electrode terminals (18) and the tissue or stenotic material. For example, by positioning the common electrode within a stenotic region and contacting a leading surface of the stenotic region with the electrode array, the stenotic materi al can be heated by applying a high frequency voltage between the electrode array ...

ATRIAL MAPPING AND ABLATION CATHETER SYSTEM

A recording and ablation catheter system for creating linear lesions in the right atrial chamber of a heart is disclosed which includes an array of readily controlled electrodes (143) arcuate distal working catheter shapes that are easily deployed to contact the inner wall surface of the recording and mapping of impulses and thereafter facilitates sustained contact so that linear lesions can be produced from an array of mapping and ablation electrode devices (143) serially spaced along the working catheter shape.

CURVILINEAR ELECTRODE AND METHOD FOR FORMING LESIONS

Systems and associated methods form larger and deeper lesion patterns by shaping a support body with multiple electrodes in ways that increase the density of the electrodes per given tissue area. The support body can carry either elongated, continuous electrodes or arrays of non-contiguous, segmented electrodes.

MULTIFUNCTIONAL INSTRUMENT WITH INTERCHANGEABLE OPERATING UNITS FOR PERFORMING ENDOSCOPIC PROCEDURES

An endoscopie instrument includes a forceps unit (11) for being positioned within an anatomical cavity and a removable operating unit (13). The forceps unit includes a housing (12), an outer tubular member (14), an intermediate member (16), and a handle mechanism (24,26) coupled with at least one of the intermediate and outer tubular members for creating relative movement between the intermediate and outer tubular members. The outer tubular member has a proximal end mounted by the housing and terminates distally at a distal end. The intermediate member has a tubular body disposed telescopically within the outer tubular member, a proximal end mounted by the housing and an integral one-piece distal end defining a pair of opposed jaws (18, 20) resiliently biased apart such that relative movement of the outer tubular member distal end over the jaws causes the jaws to close. The operating unit includes a hub (33) mounting an inner tubular member removably disposed at least partly within the ...

UVULA, TONSIL, ADENOID AND SINUS TISSUE TREATMENT DEVICE AND METHOD

An apparatus for ablating at least a portion of a uvula includes an electrode means with a proximal end, and an electrode means distal end sharpened sufficiently to pierce an exterior of the uvula without a retainer device supporting the uvula. An advancement and retraction means coupled to the electrode means is configured to advance the electrode means distal end through an exterior surface of the uvula and into an interior region of the uvula. The advancement and retraction means is configured to retract the electrode means distal end from the interior of the uvula. Handle means is coupled to the electrode means proximal end. Cabling means is coupled to the electrode means. The treatment is made by the use of RF energy. Aspiration and infusion means are provided.

VORRICHTUNG ZUM UNTERBINDEN UND DURCHTRENNEN VON EILEITERN.

Apparatus for controlled conveying a catheter, optical fiber or cable.

Das erfindungsgemässe Gerät dient zum gesteuerten Befördern eines Kabels in Form eines Katheters mit Lichtleiter bzw. einer Glasfaser oder eines Elektrokabels oder eines kabelartigen Röhrchens. Es weist Gehäuse (1) mit Deckelplatte (17) auf, auf welcher aussen ein Antriebsrad (3) und ein daran radial anpressbares Anpressrad (6) gelagert sind, zwischen denen das zu befördernde Kabel (43) einklemmbar ist. Durch den Antrieb des Antriebsrades (3) von einer Antriebseinheit im Innern des Gehäuses (1) ist das Kabel und insbesondere ein Glasfaserkabel (43) förderbar. Die Drehbewegung des Antriebsrades (3) wird im Innern der Antriebseinheit mittels einer synchron zu ihr laufenden Zählscheibe mit radialen Schlitzen oder Löchern im Umfangsbereich durch eine stationäre Lichtschranke geführt, zur Bestimmung der Bewegung und Drehgeschwindigkeit des Antriebsrades (3). Die Deckelplatte (17) mit ihren Komponenten sowie das Gehäuse (1) sind von Neuem für jeden Einsatz sterilisierbar, während die Antriebseinheit ...

COAGULATION CLAMP

DEVICE OF POSITIONING HAS RESIDENCE Of a TUBE OF DRAINAGE FOR an ENDOSCOPE

DEVICE AND METHOD FOR MEDICAL PROBE.

PINCE A COAGULATION

L'INVENTION CONCERNE UNE PINCE A COAGULATION. DANS CETTE PINCE COMPORTANT UNE TIGE D'ACTIONNEMENT 3 S'ETENDANT A L'INTERIEUR D'UN TUBE 2 ET SERVANT A OUVRIR ET FERMER LA BOUCHE DE LA PINCE, ET UNE POIGNEE, UNE BRANCHE 13 DE CETTE DERNIERE EST RELIEE PAR UN ORGANE ISOLANT 14 A LA TIGE D'ACTIONNEMENT 3 ET L'AUTRE BRANCHE 11 DE LA POIGNEE EST RELIEE PAR L'INTERMEDIAIRE D'UN SECOND ORGANE ISOLANT 6 AU TUBE 2, LE SECOND ORGANE ISOLANT 6 RECEVANT UNE BORNE 7, 8 DE RACCORDEMENT A HAUTE FREQUENCE AU TUBE 2. APPLICATION NOTAMMENT DANS LE DOMAINE MEDICAL ET CHIRURGICAL.

DEVICE OF POSITIONING HAS RESIDENCE Of a TUBE OF DRAINAGE FOR an ENDOSCOPE

Order by depression of switchgears and especially of électrochirurgicaux generators.

Device and method of medical probe

Medical probe device with optical viewing

La présente invention concerne un dispositif à sonde médicale comprenant un cathéter (2) ayant un logement de guidage de stylet avec au moins une lumière de stylet sur son côté et des moyens de guidage de stylet (6) pour diriger un stylet souple (8) vers l'extérieur au travers d'au moins une lumière de stylet et au travers du tissu intermédiaire vers les tissus cibles, un stylet positionné dans au moins un desdits moyens de guidage de stylet et un moyen de vision optique disposé dans le logement de guidage de stylet ayant un champ de vision qui s'étend au moins à l'extrémité du logement de guidage de stylet.

ENDOSCOPIC TREATMENT TOOL

심외막 접근 시스템 및 방법

... 심장의 심막강에 접근하기 위한 니들에 대한 방법 및 장치가 개시된다. 니들은 루멘과 상기 루멘과 소통하는 측면 포트를 형성하는 세장형 부재(예를 들어, 주축; 조직을 천공하도록 에너지 전달을 위한 블런트 비 외상 팁; 및 측면 포트를 통해 장치(예를 들어, 가이드 와이어)를 배향하는 안내 표면(예를 들어, 램프)을 포함한다. 상기 방법은 심막을 텐팅하고 심막을 천공하기 위한 에너지를 전달하기 위해 니들을 사용하고, 니들을 통해 심막강 내에 가이드 와이어 또는 다른 장치를 전진시키는 단계를 포함한다.

DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

ENDOVENOUS CLOSURE OF VARICOSE VEINS WITH MID INFRARED LASER

This invention is an improved method and device for treating varicose veins 200 or the greater saphenous vein 202. The method comprises the use of infrared laser radiation in the region of 1.2 to 1.8 um in a manner from inside the vessel 200 or 202 such that the endothelial cells of the vessel wall 704 are damaged and collagen fibers in the vessel wall 704 are heated to the point where they permanently contract, the vessel 200 or 202 is occluded and ultimately resorbed . The device includes a laser 102 delivered via a fiber optic catheter 300 that may have frosted or diffusing fiber tips 308. A motorized pull back device 104 is used, and a thermal sensor 600 may be used to help control the power required to maintain the proper treatment temperature.

ILLUMINATED LASER PROBE WITH ADJUSTBLE AREA OF ILLUMINATION

An illuminated laser probe primarily designed for ophthalmic surgery provides both illumination light to a surgical site and laser light to the surgical site. The probe has an elongate handle with a tubular tip extending from a distal end of the handle. A length of illumination optic fiber and a length of laser optic fiber extend through the handle and the tip. A mechanism is provided on the handle at a position where the mechanism can easily be manipulated by a finger of a surgeons hand holding the handle. The mechanism is operatively connected with the laser optic fiber and is manipulated to selectively extend a distal portion of the optic fiber from the instrument tip and retract the distal portion of the optic fiber back into the instrument tip.

FASCIA CUTTER WITH CAUTERIZING CAPABILITY

A fascia cutter (10) comprises a shaft (12) having a transverse slot (18) at its distal end (14). The blade (20) is reciprocatably mounted within the shaft (12) so that it may be axially advanced within the slot (18). A rod (24) for manually reciprocating the blade (20) is provided on the proximal end (16) of the shaft. The fascia cutter (10) is useful for enlarging previously formed abdominal penetrations where the shaft (12) is inserted in the penetration, the slot (18) is engaged about the edge of the fascia, and a radial incision is made in the fascia.

ILLUMINATED DIRECTIONAL LASER PROBE

An ophthalmic surgery illuminated directional laser probe has a handle and a rigid tubular tip projecting from the handle, and has an illumination optic fiber and a laser optic fiber that extend through the handle and the tip. A mechanism on the handle is operable to extend distal ends of the illumination optic fiber and the laser optic fiber from the distal end of the instrument tip, and to retract the distal ends of the illumination optic fiber and the laser optic fiber back into the interior of the tip. At least one of the distal ends of the illumination optic fiber and the laser optic fiber is held in a curved configuration. The distal ends of the illumination optic fiber and the laser optic fiber are secured to each other, whereby both the illumination optic fiber and the laser optic fiber curve into a bent configuration as the distal ends of the illumination optic fiber and the laser optic fiber are extended from the distal end of the instrument tip.

OPTICAL FIBER CATHETER AND METHOD

A catheter uses a steerable outer catheter with an inner catheter (14) rotatable and extendable with respect to the outer catheter (12). The outer catheter (12) may be positioned within a patient's heart and a portion of the outer catheter (12) may provide movement like that of a windshield wiper by manipulation of a spring (40). By combining the windshield wiper-type movement with the extension and rotation of the inner catheter (14) relative to the outer catheter (12), a large area within a patient's heart may be readily mapped for conduction tissue and be subjected to laser ablation if appropriate. Various configurations provide flexibility in relatively positioning of windows (16) used to apply laser energy and ring electrodes used to sense conduction tissue. Some embodiments provide only laser ablation (no mapping).

APPARATUS AND METHOD FOR TREATING AIR WAY INSUFFICIENCY IN THE LARYNGEAL/ORAL CAVITY REGION BY ELECTROMAGNETIC ENERGY

An apparatus ablates at least a portion of an interior of a body structure with a reduced chance of body structure infection. A rigid, laryngoscope like, catheter tissue interface surface and a port formed in the catheter tissue interface surface. An electrode is at least partially positioned in the interior of the catheter and is configured to be advanced and retracted in and out of the port. The electrode includes an electrode electromagnetic energy delivery surface. A disinfectant medium introduction member coupled to a source of a disinfectant medium and includes a distal end that is configured to extend into an oral cavity. An electrode advancement and retraction device is at least partially positioned in the interior of the catheter. A cable is coupled to the electrode.

ELECTROSURGICAL INSTRUMENTS AND CONNECTIONS THERETO

An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes. The instrument is removably connectable to an electrosurgical unit via an electrosurgical connector extending from the instrument and a receptacle on the electrosurgical unit. The electrosurgical instrument is rotatable without disrupting electrical connection to the electrodes of the jaws. One or more of the electrodes is retractable. The electrosurgical unit and instrument optimally seals and/or cuts tissue based on identifying the tissue and monitoring the modification of the tissue by the application of radio frequency energy. 1. An electrosurgical system comprising an elongate shaft having a proximal end, a distal end and a longitudinal axis extending from the proximal end to the distal end;', 'a first jaw connected to the elongate shaft, aligned with the longitudinal axis of the elongate shaft and being stationary relative to the elongate shaft, the first jaw being entirely conductive and having a cut channel extending lengthwise along and through the first jaw, and the first jaw comprising a monolithic seal surface comprising a plurality of seal paths surrounding the cut channel and spaced by a plurality of cavities between each of the plurality of seal paths, each of the plurality of seal paths having identical widths and differing lengths and each of the plurality of cavities having identical widths and differing lengths;', 'a second jaw pivotably coupled to the elongate shaft and pivotably movable relative to the first jaw, the second jaw comprising a first electrode, a second electrode and an insulator positioned between the first and second electrodes, the second electrode being shaped and sized like the first jaw and being on an upper portion of the second jaw and distal from the first jaw, and the first electrode being on a lower portion of the second jaw proximate to the first jaw and extending ...

Polypectomy snare having ability to actuate through tortuous path

This invention relates broadly to surgical instruments. More particularly, this invention relates to a surgical snare instrument for excising polyps. Preferably, the instrument includes a coupling member that may increase ability to actuate the snare. According to a preferred embodiment, the present invention comprises a surgical instrument for insertion through an endoscope having a handle and a working channel, said surgical instrument including an elongate flexible tubular sheath having proximal and distal ends; a flexible shaft extending through and axially movable relative to the sheath, said shaft having proximal and distal ends; an end effector coupled to or formed at said distal end of said shaft; and a coupling member disposed at said distal end of said shaft.

Reciprocating surgical instrument

A surgical rasping system functional in multiple orthopedic applications, including but not limited to shoulder, knee, hip, wrist, ankle, spinal, or other joint procedures. The system may comprise a tissue removal member with a rasping head which may be low profile and offer a flat cutting/rasping surface, or with a cutting head with at least one cutting edge. The tissue removal member is configured to be driven by an attached hub that translates a rotational movement into a reciprocating motion. Suction for removal of bone fragments or other tissues is provided through an opening spaced apart from or adjacent to the rasping surface. A radiofrequency ablation (RF) electrode may be carried on the rasping system to provide ablation or coagulation of soft tissues.

Surgical instrument with magnetic clamping force

A surgical instrument comprising an end effector, the end effector comprising first and second opposing jaw members, wherein at least one of the first and second jaw members are moveable such that the first and second jaw members are transitionable between open and closed positions. The first jaw member may comprise a permanent magnet. The second jaw member may also comprise a magnet (e.g., permanent or soft). The magnetic motive force between the magnets of the first and second jaw members may attract each other to thereby reduce the external force required to transition the first and second jaw members to the closed position. In addition, the magnets may be configured to repeal each other to thereby aid in opening the jaw members.

Bipolar medical devices for extracting tissue and methods therefor

A bipolar medical device for extracting tissue including a handle, and an outer tube projecting from the handle, the outer tube extending along a longitudinal axis and including a proximal end connected with the housing and a distal end spaced from the proximal end. The medical device includes a split tube disposed within the outer tube, the split tube having a distal end including a first cutting element and an opposing second cutting element, a motor coupled with the split tube for selectively rotating the split tube and the first and second cutting elements about the longitudinal axis, and an electrosurgical generator coupled with the split tube, whereby the first cutting element is connectable with a first pole of the electrosurgical generator and the second element is connectable with a second pole of the electrosurgical generator for passing electrical current between the first and second cutting elements.

Tissue Sealing Forceps

A forceps includes an end effector assembly having first and second jaw members. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes an opposed jaw surface having an electrically-conductive tissue sealing plate disposed thereon. The electrically-conductive tissue sealing plate includes a first portion configured to conduct energy through tissue grasped between the jaw members to create a main tissue seal and a second portion including a plurality of spaced-apart fingers extending from the first portion. The second portion is configured to conduct energy through tissue grasped between the jaw members to create an auxiliary tissue seal extending from the main tissue seal for reducing stress concentrations adjacent the main tissue seal.

Medical treatment apparatus and control method of medical treatment device

A medical treatment device to treat body tissues for conjugation, includes at least a pair of holding members configured to hold the body tissues, an energy output portion provided in at least one of the holding members and connected to an energy source to form a joined portion by supplying energy to the body tissues held by the pair of holding members and joining the body tissues, and a conjugation coating portion to a region from a neighborhood of a joined portion to coat joined surfaces with a substance capable of preventing fluid from invading during or after the body tissues being joined by adding the energy to the body tissues.

Tissue extraction devices and methods

A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

Litz wire battery powered device

A medical instrument is disclosed. The medical instrument includes a housing and a handle for gripping by a user, an end effector coupled to the handle and having at least one electrical contact, a battery, and a radio frequency (RF) generation circuit coupled to and operated by the battery. The RF generation circuit is operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, wherein the RF generation circuit is supported by the housing. The RF generation circuit includes a resonant circuit that includes at least one inductive element constructed of litz wire.

Battery shut-off algorithm in a battery powered device

A medical instrument is disclosed. The medical instrument includes at least one electrical contact, a battery, a radio frequency (RF) generation circuit coupled to and operated by the battery and operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, and a battery discharge circuit coupled to the battery. A processor is coupled to the battery discharge circuit and a memory is coupled to the processor. The memory stores machine executable instructions that when executed cause the processor to monitor activation of the RF generation circuit and disable the RF generation circuit when the RF drive signal is fired a predetermined number of times. The medical instrument may include an activation switch and/or a disposal switch supported by the housing.

Cryotreatment device and method

Devices and methods for cooling vessel walls to inhibit restenosis in conjunction with medical procedures such as coronary artery angioplasty. One catheter device includes a distal tube region having coolant delivery holes radially and longitudinally distributed along the distal region. In some devices, holes spray coolant directly onto the vessel walls. In other embodiments, a balloon or envelope is interposed between the coolant and the vessel walls and the coolant returned out of the catheter through a coolant return lumen. Some direct spray devices include an occlusion device to restrict blood flow past the region being cooled. Pressure, temperature, and ultrasonic probes are included in some cooling catheters. Some cooling catheters are coiled perfusion catheters supporting longer cooling periods by allowing perfusing blood flow simultaneously with vessel wall cooling.

Minimally Invasive Devices for Multi-Fluid Tissue Ablation

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment.

Surgical Forceps

A forceps includes a housing defining a window and having an outer shaft extending therefrom. An end effector assembly disposed at a distal end of the outer shaft includes first and second jaw members including distal portions and proximal portions and movable between spaced-apart and approximated positions. An inner shaft is slidably disposed within the outer shaft such that, when the jaw members are disposed in the spaced-apart position, the inner shaft is disposed in a distal position. When the jaw members are moved to the approximated position, the proximal portions urge the inner shaft to a proximal position. An indicator member coupled to the inner shaft includes first and second indicators. The first indicator is visible through the window when the inner shaft is disposed in the distal position. The second indicator is visible through the window when the inner shaft is disposed in the proximal position.

Reciprocating surgical instrument

A surgical rasping and/or shaving system functions in multiple orthopedic applications, including but not limited to shoulder, knee, hip, wrist, ankle, spinal, or other joint procedures. The system may comprise a tissue removal member with a rasping and/or shaving head which may be low profile and offer a flat cutting/rasping/shaving surface, or with a cutting head with at least one cutting edge. The tissue removal member is configured to be driven by an attached hub that translates a rotational movement into a reciprocating motion. Suction for removal of bone fragments or other tissues is provided through an opening spaced apart from or adjacent to the rasping surface. A radiofrequency ablation (RF) electrode may be carried on the system to provide ablation or coagulation of soft tissues.

Ablation device with drug delivery component

An ablation system includes a source of electrosurgical energy, a source of coolant fluid, and an ablation electrode assembly operatively connected to the source of electrosurgical energy and fluidly-coupled to the source of coolant fluid. The ablation electrode assembly includes a hub defining a chamber therein and one or more electrically-conductive ablation needles extending from the hub. The ablation system also includes one or more delivery needles extending from the hub. The one or more delivery needles are selectively moveable from a first position, wherein the distal end of the delivery needle is disposed proximal to the distal end portion of the ablation needle, to at least a second position, wherein at least the distal end of the delivery needle is disposed distally beyond the distal end portion of the ablation needle.

Method and Apparatuses for Tissue Treatment

Disclosed in the present application are devices for localized delivery of energy and methods of using such devices, particularly for therapeutic treatment of biological tissues. The disclosed devices may contain one or more energy delivery members. The disclosed methods may involve positioning and deploying the energy delivery members in a target site, and delivering energy through the energy delivery members.

Adjustable clamp systems and methods

Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.

Cutting mechanisms for surgical end effector assemblies, instruments, and systems

An end effector assembly for a surgical instrument includes first and second jaw members each including a jaw housing, an electrically-conductive tissue-treatment plate, and a longitudinally-extending channel. The first and/or second jaw member is movable relative to the other between a spaced-apart position and an approximated position. A cutting mechanism is disposed at least partially within the second jaw member. The cutting mechanism may include an inflatable bladder, a fluid line coupled to the inflatable bladder, and a knife coupled to the inflatable bladder. The cutting mechanism may alternatively include a fluid line, a knife, and a sealing member that defines a variable-volume sealed chamber within the longitudinally-extending channel of the second jaw member. The cutting mechanism may alternatively include at least one electromagnet, at least one electrical wire coupled to the at least one electromagnet, and a knife operably coupled to the at least one electromagnet.

Detachable motor powered surgical instrument

A detachable motor-powered surgical instrument. The instrument may include a housing that includes at least one engagement member for removably attaching the housing to an actuator arrangement. A motor is supported within the housing for supplying actuation motions to various portions of a surgical end effector coupled to the housing. The housing may include a contact arrangement that is configured to permit power to be supplied to the motor only when the housing is operably attached to the actuator arrangement.

Cold plasma electrosurgical apparatus with bent tip applicator

Electrosurgical apparatuses having bent tip applicators are provided. In one implementation, an electrosurgical apparatus includes an insulating outer tube having a longitudinal axis, a proximal end, and a distal end. An outer tube distal housing has its proximal end coupled to the distal end of the insulating outer tube. A distal end of the outer tube distal housing extends from the insulating outer tube at an acute angle relative to the longitudinal axis. The exemplary electrosurgical apparatus further includes an electrically conducting tube disposed within the insulating outer tube and moveable along the longitudinal axis of the insulating outer tube. An electrode is coupled to a distal end of the electrically conducting tube. The exemplary electrosurgical apparatus may include a knob coupled to the insulating outer tube to effect rotation of the outer tube distal housing in 360 degrees of rotation.

Bounded electrosurgical energy systems and methods employing zone-based energy

A method of treating tissue is provided herein. The method comprises positioning an end effector in a first position in proximity to tissue, wherein the end effector has one or more first thermal elements and one or more second thermal elements and an energy delivery configuration, activating the one or more first thermal elements, absorbing energy from tissue via the one or more first thermal elements, wherein the energy absorbed is in a first predetermined volume based on the energy delivery configuration, activating the one or more second thermal elements, delivering energy to tissue via the one or more second thermal elements, wherein the energy delivered is in a second predetermined volume based on the energy delivery configuration, and generating a predetermined treatment zone based on the first predetermined volume and the second predetermined volume.

ELECTROSURGICAL INSTRUMENTS

An electrosurgical instrument () is disclosed including a housing () comprising an elongate main body (), extending in an axial direction and a grippable member (). An implement () is fixed relative to and projecting from a forward region of the main body (). A smoke evacuation passage () is defined within the main body () and extends from an inlet proximal to the implement (). An electrical conductor () is housed within the housing () for supplying an electro-surgical current to the implement (). The grippable member () is slidably connected to the main body () such that the axial position of the grippable member () relative to the main body () may be adjusted in use. Further there is provided a controllable smoke passage obstructor () for enabling adjustment of the throughput of the smoke passing through the interior of the housing (). 1. An electrosurgical instrument including:a housing comprising an elongate main body, extending in an axial direction, and a grippable member;an implement fixed relative to and projecting from a forward region of the main body;a smoke evacuation passage defined within the main body and extending from an inlet proximal to said implement;an electrical conductor housed within the housing which supplies an electro-surgical current to the implement;the grippable member being slidably connected to the main body such that the axial position of the grippable member relative to the main body may be adjusted in use.2. An electrosurgical instrument according to claim 1 , wherein the implement is an electrode.3. An electrosurgical instrument according to claims 1 , wherein the grippable member is moveable between a rearwardmost position whereby the rearward end of the grippable member is spaced apart from a rear portion of the housing and a forwardmost position whereby the forward end of the grippable member is spaced apart from a front portion of the housing.4. An electrosurgical instrument according to claim 1 , wherein the grippable member ...

ELECTROSURGICAL ELECTRODES

An electrode assembly is provided. The electrode assembly includes a proximal end that is adapted to connect to an electrosurgical instrument including a housing defining a longitudinal axis therethrough and an electrosurgical energy source. A distal end includes a cutting electrode having a loop configuration configured to cut tissue. The distal end includes a return electrode operably disposed adjacent the cutting electrode. A dielectric shield is operably disposed between the cutting electrode and return electrode. The dielectric shield extending distally past the cutting electrode to hinder current flow to the return electrode when the dielectric shield, cutting electrode and return electrode are submersed in a conductive solution and the cutting electrode is energized, thereby concentrating current density at the cutting electrode. 1. An electrode assembly , comprising:a proximal end adapted to connect to an electrosurgical instrument including a housing defining a longitudinal axis therethrough and an electrosurgical energy source;a distal end including a cutting electrode having a loop configuration configured to cut tissue, the distal end including a return electrode operably disposed adjacent the cutting electrode; anda dielectric shield operably disposed between the cutting electrode and return electrode, the dielectric shield extending distally past the cutting electrode to hinder current flow to the return electrode when the dielectric shield, cutting electrode and return electrode are submersed in a conductive solution and the cutting electrode is energized, thereby concentrating current density at the cutting electrode.2. An electrode assembly according to claim 1 , wherein the dielectric shield is disposed parallel to the longitudinal axis defined by the housing claim 1 , and above the cutting electrode.3. An electrode assembly according to claim 1 , wherein the dielectric shield includes a generally arcuate configuration and extends laterally across ...

Arthroscopic devices and methods

A system for mechanical cutting and radiofrequency (RF) treatment of bone and soft tissue includes a probe and an RF power supply. The probe includes an elongated sleeve having a longitudinal axis, a proximal end and a distal end. A cutting member formed of a dielectric material is mounted on the elongated sleeve, and a metal electrode is attached to a surface of the cutting member and configured to deliver RF current. The RF power supply generates current having a pulsed RF waveform and may be connected to the metal electrode to deliver the current having the pulsed RF waveform to the tissue. The use of a pulsed RF waveform reduces a thermal stress on the dielectric material at the interface of the metal electrode and the dielectric material of the cutting member.

Medical probe with echogenic and insulative properties

Tissue ablation probes and methods of using tissue ablation probes are provided. Each tissue ablation probe comprises an electrically conductive probe shaft, at least one tissue ablation electrode carried by a distal end of the probe shaft, and one or both of an insulative element and an echogenic element. The insulative element and/or the echogenic element may, e.g., be affixed to, or selectively removable from, the probe shaft to increase the insulative capability and echogenicity of the probe. An echogenic sheath having the insulative element and/or the echogenic element may be slidably disposed over the probe shaft to impart insulative and echogenic properties to the probe shaft.

Unitary Endoscopic Vessel Harvesting Devices

Unitary endoscopic vessel harvesting devices are disclosed. In some embodiments, such devices may comprise an elongated body having a proximal end and a distal end. A conical tip may be disposed at the distal end of the elongated body. In addition, the surgical instrument may include one or more surgical instruments moveable in a longitudinal direction along an axis substantially parallel to a central longitudinal axis of the cannula from a retracted position proximally of a distal end of the tip to an advanced position toward the distal end of the tip to seal and cut a blood vessel. 1. A method for harvesting a blood vessel comprising:advancing a cannula having a conical dissection tip disposed at a distal tip of an elongated body along a main vessel to separate the main vessel and its branch vessels from the surrounding tissue;moving one or more surgical instruments in a longitudinal direction along an axis substantially parallel to a central longitudinal axis of the cannula from a retracted position proximal of a distal end of the tip to an advanced position toward the distal end of the tip;manipulating the one or more surgical instruments to seal and cut the branch vessel.2. The method of claim 1 , wherein claim 1 , in the step of advancing claim 1 , the tip is removable to expose the distal end of the elongated body.3. The method of claim 1 , wherein claim 1 , in the step of advancing claim 1 , the tip is retractable over the elongated body to expose the distal end of the elongated body.4. The method of claim 1 , wherein claim 1 , in the step of advancing claim 1 , the tip includes one or more optical windows.5. The method of claim 4 , wherein the cannula further comprises a cover moveable from a first position over the one or more optical windows to cover the one or more optical windows to a second position away from the one or more optical windows to expose the one or more optical windows.6. The method of claim 1 , wherein claim 1 , in the step of moving ...

Instrument For Therapeutically Cytotoxically Ablating Parathyroidal Tissue Within A Parathyroid Gland

An instrument for therapeutically cytotoxically ablating parathyroidal tissue is disclosed. A substance is capable of transforming the parathyroid gland from overproduction of parathyroid hormone when the substance's quantity exceeds a set amount, and is capable of transforming the parathyroid gland from overproduction only when activated by application of sufficient units of an electromagnetic energy having a frequency ranging from 400 THz to 30 PHz when the substance's quantity is below the set amount. A delivery device is operable to introduce the substance into the parathyroidal tissue and to quantitatively limit the quantity to below the set amount. An energy device is operable to apply units of the electromagnetic energy after the substance has been introduced. A sensor is operable to monitor the activation of the substance as the electromagnetic energy is applied. The energy device is further operable to modulate applying the electromagnetic energy when the substance has been activated. 1. An instrument for therapeutically cytotoxically ablating parathyroidal tissue within a parathyroid gland , comprising:a substance capable of cytotoxic ablation of a parathyroid gland of a living human, wherein the substance alone is capable of transforming the parathyroid gland from overproduction to non-overproduction of parathyroid hormone when a quantity of the substance exceeds a set amount, and the substance is capable of transforming the parathyroid gland from overproduction to non-overproduction of the parathyroid hormone only when activated in the parathyroidal tissue by application of sufficient units of an electromagnetic energy having a frequency ranging from 400 THz to 30 PHz when the quantity of the substance is below the set amount;a substance delivery device operable to introduce the substance into the parathyroidal tissue and to quantitatively limit the quantity of the substance being introduced to below the set amount;an electromagnetic energy treatment ...

ELECTROSURGICAL (RF) MEDICAL INSTRUMENTS FOR CUTTING AND COAGULATING TISSUE

An electrosurgical device is disclosed. The electrosurgical device includes a handle, a shaft extending distally from the handle, and an end effector coupled to a distal end of the shaft. The end effector comprises a first electrode and a second electrode. The second electrode includes a first position and a second position. The second electrode is configured to move from the first position to the second position when a force is applied to the end effector by a tissue section. The first electrode and the second electrode define a treatment area when the second electrode is in the second position. 1. An electrosurgical instrument comprising:a pencil-grip handle;a shaft coupled to the pencil grip handle; and a body;', 'a source electrode; and', 'one or more return electrodes,, 'an end effector coupled to the shaft, wherein the end effector compriseswherein the source electrode and the one or more return electrodes are configured to provide an electrosurgical signal to a tissue.2. The electrosurgical instrument of claim 1 , wherein the electrosurgical signal comprises a radio frequency (RF) signal.3. The electrosurgical instrument of claim 1 , wherein the pencil-grip handle comprises a power source and is cordless.4. The electrosurgical instrument of claim 1 , wherein the source electrode is disposed on a center portion of the body and the one or more return electrodes are disposed on a lateral portion of the body.5. The electrosurgical instrument of claim 1 , wherein the body defines an oval shape.6. The electrosurgical instrument of claim 1 , wherein the one or more return electrodes each comprise a first return electrode and a second return electrode.7. The electrosurgical instrument of claim 6 , further comprising an electrosurgical generator coupled to the end effector claim 6 , wherein the electrosurgical generator is configured to produce the electrosurgical signal comprising a first phase claim 6 , a second phase claim 6 , and a third phase claim 6 , wherein ...

Surgical forceps including thermal spread control

A surgical instrument includes one or more electrically-conductive plates adapted to connect to a source of energy for supplying energy to tissue to treat tissue, a temperature sensing element, and a thermal spread control assembly coupled to the temperature sensing element. The thermal spread control assembly is configured to determine a flow rate of heat energy across the temperature sensing element and to control the energy applied to the electrically-conductive plate and/or control active cooling of the temperature sensing element in accordance with the determined flow rate of heat energy.

SIMULTANEOUS I-BEAM AND SPRING DRIVEN CAM JAW CLOSURE MECHANISM

A surgical instrument includes an end effector and a handle assembly. The end effector includes a movable jaw and a cutting element slidably movable within the end effector. The handle assembly includes an energy button configured to deliver energy to at least one electrode located in the end effector, a trigger plate operably coupled to a jaw closure mechanism, the trigger plate configured to close the movable jaw, a firing plate operably coupled to a cutting element drive mechanism. The firing plate is configured to drive the cutting element independently of the jaw closure mechanism. The cutting element drive mechanism is configured to close the movable jaw when the cutting element is driven. The handle assembly further includes a trigger operatively coupled to the trigger plate and the firing plate. The jaw closure mechanism and the cutting element drive mechanism are configured to simultaneously close the movable jaw. 1. A surgical instrument , comprising: a movable jaw; and', 'a cutting element slidably movable within the end effector; and, 'an end effector comprising an energy button configured to deliver energy to at least one electrode located in the end effector;', 'a trigger plate operably coupled to a jaw closure mechanism, the trigger plate configured to close the movable jaw;', 'a firing plate operably coupled to a cutting element drive mechanism, the firing plate is configured to drive the cutting element independently of the jaw closure mechanism, wherein the cutting element drive mechanism is configured to close the movable jaw when the cutting element is driven; and', 'a trigger operatively coupled to the trigger plate and the firing plate;, 'a handle assembly comprisingwherein the jaw closure mechanism and the cutting element drive mechanism are configured to simultaneously close the movable jaw.2. The surgical instrument of claim 1 , further comprising a spring located inline with the jaw closure mechanism claim 1 , wherein the jaw closure ...

Catheter with tapered support member for variable arcuate distal assembly

A catheter with a variable circular loop responsive to a contraction wire for coiling is supported by a member having a tapered distal section that transitions from a circular cross-section to a generally rectangular cross-section while maintaining a uniform cross-sectional area along the entire tapered length for improved coiling characteristics. A radially constrictive sleeve prevents separation of the contraction wire from the support member to minimize misshaping of the loop during contraction.

REAL-TIME MOLECULAR IMAGING AND MINIMALLY-INVASIVE DETECTION IN INTERVENTIONAL CARDIOLOGY

A catheter is disclosed for locating radiation tagged tissue within a mammalian body and treating tagged tissue or untagged tissue adjacent to the tagged tissue in a single procedure. The catheter includes in or on a distal end thereof one or more detectors for locating labeled tissue. A lumen extending from a proximal end of said tube to the distal end of said tube, includes a retractable and extendable needle positioned adjacent the distal end of said tube for delivering a liquid treatment modality. I the alternative the injector for delivering the treatment modality may be placed adjacent to the catheter for delivery of the treatment. 1. A catheter for locating and treating tagged tissue within a human body comprising:a tube steerable through a vessel within the human body, said tube including in or on a distal end thereof one or more detectors for locating labeled tissue within the human body,a lumen extending from a proximal end of said tube to the distal end of said tube, anda retractable and extendable needle positioned in said lumen adjacent the distal end of said tube, said needle having a hollow conduit attached thereto and extending through said lumen to the proximal end of said tube, the hollow conduit configured to provide a treatment modality.2. The catheter of wherein the one or more detectors detects beta-rays claim 1 , gammas rays claim 1 , xrays claim 1 , fluorescence claim 1 , or electrical activity.3. The catheter of wherein the treatment modality comprises a liquid comprising cells claim 1 , genes claim 1 , polymers claim 1 , inhibitory microRNAs claim 1 , DNA claim 1 , plasmids claim 1 , chemicals claim 1 , enzymes claim 1 , growth factors claim 1 , medicinal compounds or combinations thereof.4. The catheter of wherein the treatment modality comprises delivery electrical energy or provides tissue ablation.5. The catheter of further including location indicator.6. The catheter of wherein the location indicator is a signal transmitting position ...

POWER-STAGE ANTENNA INTEGRATED SYSTEM WITH HIGH-STRENGTH SHAFT

A microwave antenna assembly includes proximal and distal radiating sections and a junction member. The proximal radiating section includes inner and outer conductors and DC power and neutral conductors. The inner conductor is disposed within the outer conductor and the DC power and neutral conductors are disposed radially outward therefrom. The junction member mates the distal and proximal radiating sections such that the distal and proximal radiating sections are positioned relative to one another. The junction member further includes a microwave signal amplifier (MSA) that receives a signal at a first energy level from the inner and outer conductors and a DC power signal from the DC power and neutral conductors. The MSA amplifies the signal from the first energy level to an additional, greater energy level. The junction member provides the microwave signal at the additional energy level to the proximal and distal radiating sections. 115-. (canceled)16. A microwave power-stage device for delivering microwave energy , comprising:a delivery device handle configured to be coupled to a power supply;a handle transmission line extending through a proximal portion of the delivery device handle;a device transmission line having a proximal portion extending through a distal portion of the delivery device handle; anda cylindrical amplifier interconnecting the handle transmission line and the device transmission line, the cylindrical amplifier is configured to amplify a microwave signal received from the handle transmission line.17. The microwave power-stage device of claim 16 , wherein the cylindrical amplifier is disposed within a space defined between the proximal and distal portions of the delivery device handle.18. The microwave power-stage device of claim 16 , wherein the cylindrical amplifier is a field-effect transistor.19. The microwave power-stage device of claim 16 , further comprising an amplifier support supporting the cylindrical amplifier in the delivery ...

Electrically enhanced retrieval of material from vessel lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.

Surgical instrument having a bipolar end effector assembly and a deployable monopolar assembly

A deployment and retraction mechanism for a surgical instrument includes a gear box defining a longitudinal slot, a slider, a ring gear, and a planet gear. The slider is configured to engage a deployable component of the surgical instrument and is translatable along the longitudinal slot between a proximal end, corresponding to a storage condition of the deployable component, and a distal end, corresponding to a use condition of the deployable component. The planet gear is operably engaged with the ring gear and configured to orbit within the ring gear. The planet gear includes an off-center pin rotatably supporting the slider thereon. The planet gear and ring gear are configured such that a one-half orbit of the planet gear within the ring gear translates the slider from one end of the longitudinal slot to the other end of the longitudinal slot.

TISSUE EXTRACTION DEVICES AND METHODS

The tissue cutting device comprises an elongated assembly including both an outer sleeve and an inner sleeve. The outer sleeve has a tissue-receiving window, and the inner sleeve has a distal end which cuts tissue as the inner sleeve is advanced past the window. The tissue is received into a lumen of the inner sleeve, and the inner sleeve lumen is typically enlarged in a proximal direction to reduce the tendency of resected tissue to lodge therein. The tissue displacement member is optionally provided at a distal end of the outer sleeve to further aid in dislodging tissue which becomes captured in a distal end of the inner sleeve of the lumen. 1. A tissue resecting device , comprising:an outer sleeve having a tissue-receiving window opening into a lumen of the outer sleeve; andan axially reciprocating inner sleeve disposed within the lumen of the outer sleeve and having a tissue-resecting distal end;wherein the outer sleeve includes a distal tip fixedly attached to a distal end of the outer sleeve and a projecting element extending proximally from the distal tip;wherein the tissue-receiving window is longitudinally asymmetrical.2. The tissue resecting device of claim 1 , wherein a depth of the tissue-receiving window from an outer surface of the outer sleeve varies along a length of the tissue-receiving window.3. The tissue resecting device of claim 2 , wherein the depth of the tissue-receiving window increases in a distal direction.4. The tissue resecting device of claim 1 , wherein the tissue-resecting distal end has a first cross-sectional area less than a second cross-sectional area at a portion of the inner sleeve proximal of the tissue-resecting distal end.5. The tissue resecting device of claim 4 , wherein the projecting element has a maximum cross-sectional area that extends substantially across the first cross-sectional area.6. The tissue resecting device of claim 1 , wherein the projecting element has a substantially symmetric shape.7. The tissue resecting ...

ELECTROSURGICAL PROBE AND KIT AND METHOD OF USING

Electrosurgical probes for treating tissue, and surgical procedures that make use of such probes. Such a probe includes a working element having a core member, a sheath secured to the working element, and a conductor disposed in a first internal longitudinal channel of the core member and having an active electrode coupled thereto. The sheath has a passage in which the core member is disposed, and the passage has an opening at a distal end of the sheath. The conductor is reciprocable within the sheath and adapted to carry a radio frequency current to and from the active electrode, which extends from the opening at the distal end of the sheath. An irrigation channel is defined by a second internal longitudinal channel of the core member. The electrosurgical probe is marked as disposable and not for reuse in a medical procedure performed on more than one patient. 1. An electrosurgical probe comprising:a disposable working element comprising a core member having a plurality of internal longitudinal channels;a disposable elongate sheath secured to the working element, the sheath having a sheath passage in which the core member is disposed such that the sheath surrounds the core member, the sheath passage having an opening at a distal end of the sheath;a conductor disposed in a first of the internal longitudinal channels of the core member and having an active electrode coupled thereto, the conductor being reciprocable within the sheath and adapted to carry a radio frequency current to and from the active electrode, the active electrode extending from the opening at the distal end of the sheath and configured to perform cutting, coagulation, or ablation of tissue when the radio frequency current flows to the active electrode; andan irrigation channel defined by a second of the internal longitudinal channels of the core member and configured to couple with an irrigation fluid source and provide an irrigation fluid to the active electrode from the irrigation fluid source; ...

Tissue Joiner

Developed is a tissue joining device for endoscopic surgery, which can be used in NOTES, or the like. As a result of intensive studies carried out to solve the problem described above, the inventors of the present invention have conceived of two tissue joining device having quite novel structures and completed the present invention.

Electrosurgical (rf) medical instruments for cutting and coagulating tissue

An electrosurgical device is disclosed. The electrosurgical device includes a handle, a shaft extending distally from the handle, and an end effector coupled to a distal end of the shaft. The end effector comprises a first electrode and a second electrode. The second electrode includes a first position and a second position. The second electrode is configured to move from the first position to the second position when a force is applied to the end effector by a tissue section. The first electrode and the second electrode define a treatment area when the second electrode is in the second position.

TISSUE RESECTION WITH PRESSURE SENSING

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment. 1. A tissue modification device for the treatment of a tissue , comprising:an elongate element having a proximal end and a distal end, wherein the elongate element is configured to be inserted into the tissue;a first lumen in the elongate element configured to deliver a fluid into a working space in the tissue to flush the working space; anda pressure sensor to measure a pressure of the fluid and maintain the pressure of the fluid within a range;an energy source disposed within the elongate element, wherein the energy source is configured to resect a volume of tissue through the working space; anda second lumen in the elongate element to remove tissue products resected with the energy source.2. The device of claim 1 , wherein the device is configured to maintain a pressure differential between the first lumen and the second lumen to evacuate resected products through the second lumen.3. The device of claim 1 , wherein the second lumen and the pressure sensor are arranged to remove the tissue products with the second lumen while the pressure sensor measures the pressure and the energy source ...

Ablation Overtube

An energy delivery system and a method of delivering energy to a tissue are provided. The energy delivery system includes an overtube. The overtube includes a body having a proximal portion, a distal portion and a lumen extending at least partially therethrough. The proximal portion is adapted to be positioned over a distal portion of an endoscope. The body also includes a first plurality of openings formed in the body and connected to the lumen and an electrode operably connected to the body and extending over at least a portion of a surface of the body. The lumen is operably connectable to a vacuum source and the electrode is operably connectable to a power source.

Wireless Energy Transfer for Medical Applications

Wireless energy transfer devices and systems for medical environments include, in at least some implementations, a wirelessly powered surgical device including: a device resonator configured to generate an oscillating voltage from a captured oscillating magnetic field; and a surgical tool electrically coupled to the device resonator, the surgical tool having a functional output that is capable of being directly powered by the oscillating voltage, and the surgical tool having a rechargeable battery backup; wherein the oscillating voltage is at least 30 volts and has a frequency of at least 1 kHz. Wireless energy transfer is utilized to eliminate cords and power cables from operating instruments and electronic equipment, facilitating mobility. 1. A wirelessly powered surgical device comprising:a device resonator configured to generate an oscillating voltage from a captured oscillating magnetic field; anda surgical tool electrically coupled to the device resonator, the surgical tool having a functional output that is capable of being directly powered by the oscillating voltage, and the surgical tool having a rechargeable battery backup;wherein the oscillating voltage is at least 30 volts and has a frequency of at least 1 kHz.2. The device of claim 1 , wherein the rechargeable battery backup is electrically coupled to the device resonator and is configured to be recharged from the oscillating voltage.3. The device of claim 1 , comprising a robot comprising the device resonator and the surgical tool.4. The device of claim 3 , wherein the functional output includes an electric scalpel powered by the oscillating voltage.5. The device of claim 3 , wherein the functional output includes a cauterizer powered by the oscillating voltage.6. The device of claim 3 , further comprising a voltage sensor to measure a voltage of the oscillating voltage claim 3 , thereby providing a voltage measurement.7. The device of claim 6 , further comprising a wireless communication capability to ...

Anti-seeding arrangement

The present invention relates to an anti-seeding arrangement ( 100 ) for invasive treatment of a human or animal body comprising an elongated hollow member ( 102 ), and a first electrode ( 116 ) of which one portion is arranged near one end of the elongated hollow member ( 102 ), said first electrode ( 116 ) being connectable to an electromagnetic field generator ( 110 ), wherein the elongated hollow member ( 102 ) is arranged to be inserted into the human or animal body, control means ( 106, 108 ) arranged to control the electromagnetic field generator ( 110 ) for delivering radio frequency bursts to the first electrode ( 116 ), and sensing means ( 104 ) to sense a physical property dependent on the insertion length of the elongated hollow member ( 102 ) in the human or animal body, and wherein the control means ( 106, 108 ) is arranged to control the operation of the electromagnetic field generator ( 110 ) in dependence of the sensed physical property.

Treatment instrument and high-voltage connectors for robotic surgical system

Described herein are methods and systems for using the treatment tip apparatuses and high-voltage connectors with robotic surgical systems. For example, retractable treatment tip apparatuses (e.g., devices, systems, etc.) including one, or more preferably a plurality, of electrodes that are protected by a housing (which may be retractable) until pressed against the tissue for deployment of the electrodes and delivery of a therapeutic treatment, are disclosed. In particular, these apparatuses may include a plurality of treatment needle electrodes and may be configured for the delivery of nanosecond pulsed electric fields. Also described herein are high-voltage connectors configured to provide high-voltage energy, such as nsPEF pulses, from a generator to the retractable treatment tip apparatuses.

SURGICAL FLUID MANAGEMENT SYSTEMS AND METHODS

A fluid management system for use with a fluid reservoir includes an inflow pump and an outflow pump. The inflow pump is connectable to a probe for delivering a distention fluid to a body cavity. The outflow pump removes the distention fluid through the same probe, thus establishing a re-circulating volume of distention fluid within the body cavity. The removed fluid is filtered and returned to a fluid reservoir for eventual recycling to the body cavity. A controller adjusts the flow rates of the inflow pump and the outflow pump to maintain a pre-selected fluid pressure or volume within the body cavity. 1. A fluid management system for supplying a distending fluid to a body space or potential space , said system comprising:an inflow pump connectable to a fluid inflow line for providing an inflow of the distending fluid to the body space or potential space;an outflow pump connectable to a fluid outflow line for removing the distending fluid from the body space or potential space;wherein the inflow and outflow pumps are configured to maintain a distending fluid pressure in the body space or potential space;a first pressure sensor configured to provide a pressure signal indicative of the distending fluid pressure in the body space or potential space;a second pressure sensor configured to provide a pressure signal indicative of the distending fluid pressure in the body space or potential space; anda controller configured to compare the pressure signals from the first and second pressure sensors.2. The fluid management system of claim 1 , wherein the controller is configured to stop the inflow pump if the pressure signal from the first pressure sensor differs from the pressure signal from the second pressure sensor by a predetermined minimum amount.3. The fluid management system of claim 2 , wherein the controller is configured to maintain the distending fluid pressure in the body space or potential space within a predetermined pressure range.4. The fluid management ...

TISSUE EXTRACTION DEVICES AND METHODS

Tissue may be cut and extracted from an interior location in a patient's body using a probe or tool which both effects cutting and causes vaporization of a liquid or other fluid to propel the cut tissue through an extraction lumen of the cutting device. The cutting may be achieved using an electrosurgical electrode assembly, including a first electrode on a cutting member and a second electrode within a cutting probe or tool. Thus, over a first cutting portion, radio frequency current may help cut the tissue and over a second or over transition region, the RF current may initiate vaporization of the fluid or other liquid to propel the tissue from the cutting device. 1. An electrosurgical system for resecting tissue , said system comprising: an outer sleeve including a lumen and a tissue-receiving window opening into the lumen of the outer sleeve;', 'an inner sleeve movably disposed within the lumen of the outer sleeve, wherein the inner sleeve is configured to move across the tissue-receiving window between a window-open position to a window-closed position to resect tissue extending into the tissue-receiving window;', 'a distal tip attached to a distal end of the outer sleeve;', 'a first polarity electrode positioned at a distal end region of the inner sleeve; and', 'a second polarity electrode positioned at a distal end region of the outer sleeve;', 'wherein an outer surface of the outer sleeve comprises the second polarity electrode when the inner sleeve is in the window-open position and a surface of the distal tip within the lumen of the outer sleeve comprises the second polarity electrode when the inner sleeve is in the window-closed position., 'an elongated probe including2. The system of claim 1 , wherein the inner sleeve reciprocates longitudinally within the outer sleeve.3. The system of claim 1 , wherein the first and second polarity electrodes are configured to operate in a first mode to resect tissue with RF energy and in a second mode to vaporize a ...

Needle tip to apply current, handpiece, and apparatus for treating skin

A needle tip for applying current is provided. The needle tip for applying current includes a needle fixing unit, and a plurality of needles disposed on one surface of the needle fixing unit, wherein each needle includes at least one active region which is formed, as an insulator is not coated on a partial area of the needle except for a distal end portion of the needle and electromagnetically conducted. The plurality of needles are connected to electrodes having alternately different polarities. When the plurality of needles include the plurality of active regions spaced apart from each other, the intensity of current applied to each of electrodes connected to the plurality of needles is adjusted, such that electric energy is transmitted between the plurality of active regions spaced apart from each other.

Surgical device and method of use

A tissue resecting device includes a handle coupled to an elongated sleeve assembly. The elongated sleeve assembly includes a windowed outer sleeve and an inner sleeve adapted to reciprocate and/or rotate relative to the window to resect tissue intruding into the window, where the resected tissue is captured in a channel in the sleeve assembly. One or more motors in the handle both move the inner sleeve relative to the window and operate a pump which causes a fluid to flow through the channel in the sleeve assembly to remove resected tissue therefrom.

An ablation catheter

An ablation catheter includes a control handle and a catheter sheath removably connectable to the control handle, the catheter sheath defining a fluid lumen and having a plurality of perforations proximal the distal end of the catheter sheath. The ablation catheter further includes a shape-imparting element inserted into the fluid lumen of the catheter sheath and removably connectable to the control handle. The shape-imparting element is connectable to an RF energy source so that, in use, the shape-imparting elements act as an electrode charging fluid into the fluid lumen to be expelled through the plurality of perforations on the catheter sheath.

Blade deployment mechanisms for surgical forceps

A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.

MULTI-FUNCTION SURGICAL INSTRUMENTS

A surgical instrument includes a housing, an energizable member, a powered deployment assembly, and a cable assembly. The energizable member is configured to supply electrosurgical energy to tissue, and is movable between a storage position and a deployed position. The powered deployment assembly is configured to selectively move the energizable member between the storage position and the deployed position. The cable assembly having a cable coupled to the housing at a first end and having a plug coupled to the cable at a second, opposite end. The cable housing one or more first wires for selectively providing electrosurgical energy to the energizable member and one or more second wires for selectively providing power to the powered deployment assembly. The plug is configured to house a battery therein for powering the powered deployment assembly via the one or more second wires. 119-. (canceled)20. A surgical instrument , comprising:a housing;an energizable electrode configured to supply electrosurgical energy to tissue, the energizable electrode movable relative to the housing between a storage position and a deployed position; anda powered deployment assembly disposed within the housing and configured to selectively move the energizable electrode between the storage position and the deployed position, wherein the powered deployment assembly includes a fixed guide and an actuator movably supported within the fixed guide, the actuator coupled to the energizable electrode and configured to move relative to the fixed guide to selectively move the energizable electrode between the storage position and the deployed position.21. The surgical instrument according to claim 20 , further comprising a cable assembly having a cable coupled to the housing at a first end and having a plug coupled to the cable at a second claim 20 , opposite end claim 20 , the cable housing one or more first wires for selectively providing electrosurgical energy to the energizable electrode and ...

Tissue cutting systems and methods

A probe for resecting and coagulating tissue comprises an outer sleeve having a tissue cutting window and an inner sleeve having a tissue cutting distal end. And RF cutting region is formed at the distal end of the inner member and an RF coagulation region is formed on an exterior surface of the inner member immediately proximal to the cutting surface. A single power supply providing a single RF energy mode can be connected to both RF applicator regions to simultaneously cut and coagulate tissue.

HIGH-FREQUENCY TREATMENT TOOL

The high-frequency treatment tool includes a flexible tube inserted into a body cavity; an operating wire inserted through the flexible tube to be movable back and forth; a treatment part arranged on a distal end of the operating wire and treats biological tissue by applying a high-frequency current; a main body that fixes a base end of the flexible tube; a slider-fixing part that fixes a base end of the operating wire guided from the base end of the flexible tube and slides the operating wire in an axis direction with respect to the main body; and a slider-gripping part provided to encircle at least a portion of an outer peripheral surface of the slider-fixing part and slides the slider-fixing part by the operation of a user. The slider-fixing part is unrotatably coupled to the main body and the slider-gripping part is rotatably coupled to the slider-fixing part. 1. A high-frequency treatment tool comprising:a flexible tube that is inserted into a body cavity;an operating wire that is inserted through the flexible tube so as to be movable back and forth;a treatment part that is arranged on a distal end of the operating wire and treats biological tissue by applying a high-frequency current;a main body that fixes a base end of the flexible tube;a slider-fixing part that fixes a base end of the operating wire guided from the base end of the flexible tube and slides the operating wire in an axis direction with respect to the main body; anda slider-gripping part that is provided so as to encircle at least a portion of an outer peripheral surface of the slider-fixing part and slides the slider-fixing part by the operation of a user,wherein the slider-fixing part is unrotatably coupled to the main body and the slider-gripping part is rotatably coupled to the slider-fixing part.2. The high-frequency treatment tool according to claim 1 ,wherein the main body includes a slit hole along the axis direction,wherein the slider-fixing part includes a tab inserted through the slit ...

High-frequency treatment tool and high-frequency treatment system

Provided is a high-frequency treatment tool. A positioning member that regulates movement of a second wire part within a sheath relative to a first wire part in a direction of a longitudinal axis of the second wire part is present in the sheath. In a state in which a folded part is located close to a distal end of the sheath, a loop formation part is fed from the distal end of the sheath with the second wire part fixed.

ABLATION SYSTEMS, PROBES, AND METHODS FOR REDUCING RADIATION FROM AN ABLATION PROBE INTO THE ENVIRONMENT

The ablation systems, ablation probes, and corresponding methods according to the present disclosure reduce or eliminate energy radiating from an ablation probe into the environment. Some ablation probes include a retractable sheath that shields at least the radiating portion of the ablation probe. The retractable sheath and/or the ablation probe may include conduits through which a fluid may flow to shield the radiating portion and to drive the retractable sheath to an extended state. Other ablation probes include apertures defined in the probe walls through which the fluid can flow to expand a balloon surrounding the radiating portion. Yet other ablation probes include a thermal indicator to indicate the temperature of the ablation probe to a user. The ablation systems include fluid circuits and associated mechanical controls for varying the contents and/or flow rate of the fluid provided to the radiating portion of the ablation probe. 117-. (canceled)18. A fluid circuit for an ablation probe , the fluid circuit comprising:a first fluid supply conduit configured to transfer a first fluid from a source of first fluid to a radiating portion of an ablation probe;a second fluid supply conduit configured to transfer a second fluid from a source of second fluid to the radiating portion of the ablation probe; anda manual control operatively coupled to the first fluid supply conduit and the second fluid supply conduit, the manual control configured to control a supply of the first fluid and the second fluid to the radiating portion of the ablation probe.19. The fluid circuit according to claim 18 , further comprising a fluid return conduit configured to carry the first fluid claim 18 , a mixture of the first fluid and the second fluid claim 18 , or the second fluid away from the radiating portion.20. The fluid circuit according to claim 18 , wherein the second fluid is a liquid solution containing particles that absorb electromagnetic energy.21. The fluid circuit ...

Radio-Frequency Electrical Membrane Breakdown for the Treatment of High Risk and Recurrent Prostate Cancer, Unresectable Pancreatic Cancer, Tumors of the Breast, Melanoma or Other Skin Malignancies, Sarcoma, Soft Tissue Tumors, Ductal Carcinoma, Neoplasia, and Intra and Extra Luminal Abnormal Tissue

An imaging, guidance, planning and treatment system integrated into a single unit or assembly of components, and a method for using same, that can be safely and effectively deployed to treat prostate cancer, unresectable pancreatic cancer, tumors of the breast or soft tissue, including those located in the head, neck, central nervous system or brain, melanoma, ductal carcinoma, neoplasia, or intra and extra luminal abnormal tissue. The system utilizes the novel process of Radio-Frequency Electrical Membrane Breakdown (“EMB” or “RFEMB”) to destroy the cellular membranes of unwanted or cancerous tissue without denaturing the intra-cellular contents of the cells comprising the tissue, thereby ablating it and exposing tumor antigens and other intra-cellular components which can have an immunologic effect on local or distant cancerous tissue, with or without the addition of immunologic adjuvant drugs, agents, or materials. The system preferably comprises at least one EMB treatment probe , at least one trackable biopsy needle , at least one trackable anesthesia needle , and at least one controller unit for at least partially automating the treatment process. 1. (canceled)2. A system for ablating soft tissue in a living subject , the system comprising:an electric pulse generator configured to produce a bi-polar pulse;a probe comprising an electrode connected to said electric pulse generator, in which the probe and electric pulse generator are configured to cause application, to the soft tissue, of an electric field in a range of 1,500 V/cm to 10,000 V/cm,in which the applied electric field in the range of 1,500 V/cm to 10,000 V/cm and the bi-polar pulse produced by the electric pulse generator are sufficient to cause immediate destruction of cell membranes of cells of the soft tissue and immediate spillage of non-denatured intracellular components and antigens into an extracellular space;one or more needles configured to administer one or more immunologic response ...

Detachable motor powered surgical instrument

A detachable motor-powered surgical instrument. The instrument may include a housing that includes at least one engagement member for removably attaching the housing to an actuator arrangement. A motor is supported within the housing for supplying actuation motions to various portions of a surgical end effector coupled to the housing. The housing may include a contact arrangement that is configured to permit power to be supplied to the motor only when the housing is operably attached to the actuator arrangement.

SURGICAL FLUID MANAGEMENT SYSTEMS AND METHODS

A fluid management system for use with a fluid reservoir includes an inflow pump and an outflow pump. The inflow pump is connectable to a probe for delivering a distention fluid to a body cavity. The outflow pump removes the distention fluid through the same probe, thus establishing a re-circulating volume of distention fluid within the body cavity. The removed fluid is filtered and returned to a fluid reservoir for eventual recycling to the body cavity. A controller adjusts the flow rates of the inflow pump and the outflow pump to maintain a pre-selected fluid pressure or volume within the body cavity. 1. A method of monitoring delivery and recovery of a distension fluid to detect loss during treatment of a body or potential space , said method comprising:recording a reference volume of distending fluid contained within a supply container;supplying an inflow of distending fluid into the body or potential space;recovering an outflow of distending fluid from the body or potential space;filtering the recovered distending fluid; andre-circulating the recovered fluid to the supply container to provide a replenished volume; andcalculating a fluid deficit by subtracting the replenished volume from the initial reference volume.2. The method of claim 1 , wherein the recording step further comprises:recording a system capacity volume and a volume of the body or potential space.3. The method of claim 2 , wherein the recording the system volume includes priming a supply tubing set and a surgical device with the distending fluid.4. The method of claim 2 , wherein the recording the volume of the body or potential space includes inflowing distending fluid into the body or potential space.5. The method of claim 1 , wherein the recording step includes calculating the volume of the body or potential space by imaging means.6. The method of claim 1 , further comprising:sealing an access to the body or potential space to prevent loss of distending fluid into an adjacent environment.7. ...

Valvuloplasty treatment assembly and method using directed bubble energy

A catheter system for treating a treatment site within or adjacent to the heart valve within a body of a patient includes an energy source, an energy guide and an energy director. The energy source generates energy. The energy guide includes a guide proximal end and a guide distal end. The energy guide is configured to receive energy from the energy source and guide the energy from the guide proximal end toward the guide distal end. The energy director includes a director wall that defines a director interior, and a director distal end that is selectively positioned substantially adjacent to the treatment site. The guide distal end of the energy guide is positioned within the director interior. The director distal end is at least partially open toward the treatment site.

Electrosurgical devices and methods

A bipolar electrosurgical devices and methods of use for coagulation and ablation of tissue in a fluid-immersed working space is disclosed. The bipolar electrosurgical device can comprise a handle and an elongated shaft coupled to the handle. The bipolar electrosurgical device can further comprise a bipolar electrode arrangement and a return electrode. The bipolar electrode arrangement and the return electrode can be electrically insulated from one another. The bipolar electrosurgical device can further comprise an adjusting member carried by the elongated shaft. Movement of the adjusting member from a first position toward a second position can contemporaneously increase an effective surface area of the active electrode and decrease an effective surface area of the return electrode.

MEDICAL DEVICE AND METHODS

Hysteroscopic system includes a hysteroscope having a main body coupled to an extension portion. The extension portion may be a shaft configured to extend transcervically to a patient's uterine cavity. First, second, and third channels extend from the main body to a distal end of the extension portion. A fluid source is coupleable to a proximal end of the first channel, and a pressure sensor is coupleable to a proximal end of the second channel. A tissue resecting probe is configured for introduction through the third channel. At least one resistance feature is included which is configured to provide a selected level of resistance to axial sliding of the probe through the third channel while permitting rotation of the probe within the third channel. 1. An endoscopic system for working within a uterine cavity , comprising:an endoscope having a handle portion at a proximal end of the endoscope and an elongate shaft portion extending distally from the handle portion to a distal end of the endoscope with first, second, and third channels extending within the handle portion and through the elongate shaft portion to a distal region of the elongate shaft portion;wherein the first channel is configured to be in communication with a positive fluid pressure source;wherein a proximal end of the second channel is coupled to a pressure sensor configured to measure actual intracavity pressure;wherein the third channel includes a distal channel portion extending through the elongate shaft portion along a straight axis and a proximal channel portion extending proximally from the distal channel portion within the handle portion;wherein the proximal channel portion extends proximally to an aperture in a proximal face of the handle portion, and a center of the aperture is offset from the straight axis at the proximal face if the straight axis is extended to the proximal face.2. The endoscopic system of claim 1 , wherein the pressure sensor is configured to send pressure signals to a ...

Tissue extraction devices and methods

A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

Electrosurgical coagulation instrument including a suction pipe and a collapsible tip

An electrosurgical coagulation instrument includes a body, a suction pipe, and an electrode. The body has a central passage that defines a longitudinal axis. The suction pipe has a distal end and defines a lumen. The suction pipe is disposed within the central passage. The electrode has a distal tip that is configured to deliver energy to tissue. The electrode is disposed within the lumen of the suction pipe. The suction pipe and/or the electrode is slidable along the longitudinal axis with respect to the body and the other of the electrode and the suction pipe.

User interface and lock features for positioning multiple components within a body

Disclosed embodiments include apparatuses, systems, and methods for positioning electrodes. In an illustrative embodiment, an apparatus includes a primary electrode defining a lumen, an elongated secondary electrode slidably receivable within the lumen, and a sheath configured to slidably receive the electrodes and to convey the electrodes toward a target region. A housing is coupled with the sheath and movably mounted to motivate the sheath relative to the target region. A primary actuator is coupled with the primary electrode and slidably coupled with the housing to motivate the primary electrode relative to the sheath. A secondary actuator is coupled with the secondary electrode and movably coupled with the primary actuator to be slidable with the electrodes in concert. The secondary actuator is rotatable independently of the primary actuator to travel along a helical path to motivate the secondary electrode to move relative to the target region independently of the primary electrode.

SLIDABLE COUPLING TO CONNECT DEVICES

Disclosed embodiments include apparatuses, systems, and methods for coupling devices. In an illustrative embodiment, an apparatus includes a locking body defining an opening with a first section having a first width and a second section having a second width smaller than the first width. The locking body is slidably mountable on a first device with a first coupling to receive a second coupling having a flange with a width that is smaller than the first width and larger than the second width. A slidable mounting mechanism slidably secures the locking body on the first device. The locking body slides between an open position, in which the first section is positionable to enable the first coupling to receive the second coupling, and a closed position in which an edge of the locking body around the second section abuts the flange to prevent withdrawal of the second coupling. 1. An apparatus comprising:a locking body that defines an opening with a first section having a first width and a second section having a second width that is smaller than the first width, the locking body being slidably mountable on one of a first device that supports a first coupling and a second device that supports a second coupling, one of the first and second couplings being configured to support thereon a flange having a flange width that is smaller than the first width and larger than the second width; anda slidable mounting mechanism configured to slidably secure the locking body on one of the first device and the second device, the slidable mounting mechanism being further configured to enable the locking body to slide between an open position, in which the first section is positionable to enable the first coupling to be inserted into the second coupling to form a connection, and a closed position in which an edge of the locking body around the second section abuts the flange such that the coupling that supports the flange is prevented from being withdrawn from the connection.2. The ...

A light irradiating medical device

A light irradiating medical device comprising: a shaft extending in a longitudinal axis direction thereof and having a lumen extending in the longitudinal axis direction; a first tubular member disposed in the lumen of the shaft and rotatable about a rotation axis parallel to the longitudinal axis direction of the shaft, the first tubular member having a window located in a part of a peripheral wall of a distal portion; and a light guiding tool disposed in a lumen of the first tubular member and movable in the longitudinal axis direction, the light guiding tool including an optical fiber extending in the longitudinal axis direction, the optical fiber including a core, a cladding coating a radially outer portion of the core, and a cladding-absent portion located at a part of a distal portion of the core, and the window allowing passage therethrough of output light from the light guiding tool.

Tissue extraction devices and methods

The tissue cutting device comprises an elongated assembly including both an outer sleeve and an inner sleeve. The outer sleeve has a tissue-receiving window, and the inner sleeve has a distal end which cuts tissue as the inner sleeve is advanced past the window. The tissue is received into a lumen of the inner sleeve, and the inner sleeve lumen is typically enlarged in a proximal direction to reduce the tendency of resected tissue to lodge therein. The tissue displacement member is optionally provided at a distal end of the outer sleeve to further aid in dislodging tissue which becomes captured in a distal end of the inner sleeve of the lumen.

Electrosurgical electrodes

An electrode assembly is provided. The electrode assembly includes a proximal end that is adapted to connect to an electrosurgical instrument including a housing defining a longitudinal axis therethrough and an electrosurgical energy source. A distal end includes a cutting electrode having a loop configuration configured to cut tissue. The distal end includes a return electrode operably disposed adjacent the cutting electrode. A dielectric shield is operably disposed between the cutting electrode and return electrode. The dielectric shield extending distally past the cutting electrode to hinder current flow to the return electrode when the dielectric shield, cutting electrode and return electrode are submersed in a conductive solution and the cutting electrode is energized, thereby concentrating current density at the cutting electrode.

DEVICES, SYSTEMS, AND METHODS FOR TREATING CARDIAC ARRHYTHMIAS

Medical devices are described for performing mapping, ablating, and/or pacing procedures on one or more layers of the cardiac wall via an epicardial approach in a minimally invasive (e.g., orthoscopic) surgical procedure. One of the medical devices described includes a main support member and one or more secondary support members extending outwardly from the main support member having electrodes configured to receive electrical impulses. The secondary support member may include a support pad configured to be removably attached to a corresponding area of the epicardium for holding the medical device in place during a procedure, such as through application of vacuum pressure via a containment dome provided on each secondary support member. Further, an ablating electrode may be slidably disposed along the main support member for transmitting energy to a target site proximate the electrode. Associated methods are also described. 120-. (canceled)21. A method for treating cardiac arrhythmias , the method comprising:inserting a medical device in a patient's body;advancing the medical device towards a target area of the patient's heart from a location outside the heart; andactivating one or more pacing electrodes on the medical device to electrically stimulate tissue proximate the target area during a pacing procedure.22. The method of claim 21 , wherein inserting the medical device comprises non-transvenously inserting the medical device in the patient's body.23. The method of claim 21 , wherein advancing the medical device towards the target area comprises approaching the heart epicardially.24. The method of claim 21 , wherein the target area is disposed over portions of a heart atrium and a heart ventricle.25. The method of claim 21 , wherein the target area is disposed over portions of a left side and a right side of the heart.26. The method of further comprising pacing the left and right sides of the heart via the medical device.27. The method of claim 21 , wherein ...

Powered endoscopic device with haptic feedback

An endoscopic deployment device includes a body mountable on an endoscopic device, the body having a movable carrier couplable to an end effector device, the end effector device having an end effector shaft covered by an outer sheath and an end effector extending from a distal end of the end effector shaft, the outer sheath being sized and shaped for insertion through a working channel of the endoscopic device, the body having a carrier channel for the carrier to slide therein, wherein the end effecter is actuatable between an open position and a closed position; and a motor having a drive shaft coupled to the carrier, rotation of the drive shaft sliding the carrier in the carrier channel and actuating the end effector in response to a signal from one or more actuation buttons; wherein at least one vibration motor generates vibrations as an angular position of the motor changes.

Photodynamic therapy device and methods of use

A therapy device comprises a shaft extending between proximal and distal portions, a surgical instrument located at the distal portion, a handpiece located at the proximal portion, a treatment end located at the distal end of the surgical instrument that can apply photodynamic therapy (PDT). The treatment end includes an applicator to apply a photosensitizer to a surface of a target tissue and a light emitter that can emit generated phototherapeutic light to activate the photosensitizer to ablate target tissue. A method for providing PDT to the target tissue includes inserting the therapy device into the patent, applying the photosensitizer and phototherapeutic light to a surface of the target tissue, and removing the device from the patient.

System for use in treatment of vertebral fractures

Methods and devices that displace bone or other hard tissue to create a cavity in the tissue. Where such methods and devices rely on a driving mechanism for providing moving of the device to form a profile that improves displacement of the tissue. These methods and devices also allow for creating a path or cavity in bone for insertion of bone cement or other filler to treat a fracture or other condition in the bone. The features relating to the methods and devices described herein can be applied in any region of bone or hard tissue where the tissue or bone is displaced to define a bore or cavity instead of being extracted from the body such as during a drilling or ablation procedure.

ELECTROSURGICAL INSTRUMENT WITH ROTATION AND ARTICULATION MECHANISMS

An electrosurgical instrument includes an end effector comprising two movable jaws for grasping tissue therebetween. The jaws connect to an electrosurgical energy source to deliver energy through tissue between the jaws to effect a seal. The jaws include a knife channel to reciprocate a knife therealong for severing tissue held between the jaws. A two-stage articulation joint is coupled to the end effector and to articulation bands configured to articulate the end effector. The two-stage articulation joint includes an outer cut metal tube comprising a plurality of sections and a solid but flexible inner core positioned within the outer cut metal tube. The electrosurgical instrument also may include a rotatable closure ring and a closure link operatively coupled to the rotatable closure ring, a rotatable coupling joint coupled to the articulation section, and/or a hollow flexible tube coupled to the knife and an active rod extending longitudinally therethrough. 124-. (canceled)25. A surgical system , comprising: a first jaw;', 'a second jaw, wherein the first jaw is rotatable relative to the second jaw between an open position and a closed position; and', 'an electrode configured to apply radiofrequency (RF) energy to tissue positioned between the first jaw and the second jaw;, 'an end effector, comprisingan outer tube comprising an articulation section;a non-rotatable member coupled to the end effector;an articulation system coupled to the non-rotatable member, wherein the articulation system is configured to rotate the end effector about the articulation section; anda rotatable closure member coupled to the outer tube, wherein the rotatable closure member is configured to rotate the first jaw toward the closed position; anda link coupled to the rotatable closure member and the first jaw, wherein the link is configured to rotate the first jaw toward the open position.26. The surgical system of claim 25 , further comprising;a knife; anda knife tube configured to ...

Expandable catheter assembly with flexible printed circuit board (pcb) electrical pathways

Provided is a flex-PCB catheter device that is configured to be inserted into a body lumen. The flex-PCB catheter comprises an elongate shaft, an expandable assembly, a flexible printed circuit board (flex-PCB) substrate, a plurality of electronic components and a plurality of communication paths. The elongate shaft comprises a proximal end and a distal end. The expandable assembly is configured to transition from a radially compact state to a radially expanded state. The plurality of electronic elements are coupled to the flex-PCB substrate and are configured to receive and/or transmit an electric signal. The plurality of communication paths are positioned on and/or within the flex-PCB substrate. The communication paths selectively couple the plurality of electronic elements to a plurality of electrical contacts configured to electrically connect to an electronic module configured to process the electrical signal. The flex-PCB substrate can have multiple layers, including one or more metallic layers. Acoustic matching elements and conductive traces can be includes in the flex-PCB substrate.

MEDICAL SYSTEMS AND METHODS

A fluid management system for use in a tissue resection procedure includes a controller. An inflow pump is operated by the controller and configured to provide fluid inflow through a flow path to a site in patient's body. An outflow pump is operated by the controller and configured to provide fluid outflow through a flow path from the site in patient's body. A motor driven resecting device may be provided for resecting tissue at the site. The controller is configured to actuate an inflow pump and an outflow pump in response to various signals and various algorithms are provided to provide malfunction warnings and assure safe operation. 1. A method of controlling a fibroid treatment system , comprising:inserting a motor driven resecting device of the fibroid treatment system into a uterine cavity, the motor driven resecting device being operatively coupled to a controller;wherein the fibroid treatment system further comprises an inflow pump configured to provide fluid inflow to the uterine cavity and an outflow pump configured to provide fluid outflow from the uterine cavity, the inflow and outflow pumps being operated by the controller;receiving signals of fluid pressure in the uterine cavity with the controller, wherein the signals of fluid pressure are provided by a pressure sensor coupled to a static fluid column communicating with the uterine cavity, the pressure sensor including two independent sensing elements that both interface with the static fluid column; andactuating the inflow pump and the outflow pump in response to the signals of fluid pressure in the uterine cavity to maintain a target pressure in the uterine cavity.2. The method of claim 1 , further comprising:comparing signals of fluid pressure from the two independent sensing elements of the pressure sensor.3. The method of claim 2 , further comprising:communicating a warning signal from the controller if the signals of fluid pressure from the two independent sensing elements are not within a ...

System for use in treatment of vertebral fractures

Methods and devices that displace bone or other hard tissue to create a cavity in the tissue. Where such methods and devices rely on a driving mechanism for providing moving of the device to form a profile that improves displacement of the tissue. These methods and devices also allow for creating a path or cavity in bone for insertion of bone cement or other filler to treat a fracture or other condition in the bone. The features relating to the methods and devices described herein can be applied in any region of bone or hard tissue where the tissue or bone is displaced to define a bore or cavity instead of being extracted from the body such as during a drilling or ablation procedure.

APPARATUS FOR TISSUE SEALING

The present disclosure provides for a microwave forceps for sealing tissue. The forceps includes a shaft member having an end effector assembly disposed at a distal end thereof. The end effector assembly includes opposing jaw members movable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp tissue therebetween. Each of the jaw members includes a sealing surface, wherein one of the sealing surfaces includes one or more microwave antennas coupled to a source of microwave energy. 1. (canceled)2. A microwave forceps for sealing tissue , comprising:a shaft member including a distal portion;a first jaw member having a first sealing surface;a second jaw having a second sealing surface, the first and second jaw members operably coupled to the distal portion of the shaft member; anda microwave antenna assembly including a slot antenna associated with the first sealing surface and having an elongate slot defined therein.3. The microwave forceps according to claim 2 , wherein the slot antenna includes:a first longitudinally-extending inner surface configured to be coupled to a ground connection of a microwave energy source; anda second longitudinally-extending inner surface configured to be coupled to an active connection of the microwave energy source, the elongate slot having a width defined between the first and second inner surfaces.4. The microwave forceps according to claim 2 , wherein the first jaw member defines a cavity therein claim 2 , the elongate slot overlapping the cavity.5. The microwave forceps according to claim 4 , wherein the first jaw member includes:a conductive plate; anda dielectric portion disposed between the cavity and the conductive plate.6. The microwave forceps according to claim 4 , wherein the cavity has a length and a width substantially equal to a respective length and width of the elongate slot.7. The microwave forceps according to claim 4 , wherein ...

CATHETER SYSTEMS AND METHODS FOR ABLATING VARICOSE VEINS

In some embodiments, the disclosure describes a catheter system for applying energy to a vessel, such as a vein. The system may include an elongate catheter shaft having a distal end and a proximal end opposite the distal end, and an energy application device coupled to the distal end of the elongate catheter shaft. The energy application device may be configured to apply energy to the vessel. The system may also include a gauge positioned relative to a working surface. The gauge may be configured to determine a distance that the elongate catheter shaft travels with respect to a treatment zone. 1. A catheter system for applying energy to a vessel , comprising:an elongate catheter shaft having a distal end and a proximal end opposite the distal end;an energy application device coupled to the distal end of the elongate catheter shaft, wherein the energy application device is configured to apply energy to the vessel; anda gauge positioned relative to a working surface, wherein the gauge is configured to determine a distance that the elongate catheter shaft travels with respect to a treatment zone.2. The catheter system of claim 1 , wherein the gauge is coupled to the working surface claim 1 , and the working surface comprises at least one of a patient drape surface claim 1 , a patient leg surface claim 1 , a table surface claim 1 , the elongate catheter shaft claim 1 , and an introducer sheath that slideably receives the elongate catheter shaft.3. The catheter system of claim 2 , wherein the gauge defines at least one of a tube claim 2 , rod claim 2 , and block.4. The catheter system of claim 2 , wherein the gauge defines at least one of a card claim 2 , sticker claim 2 , label claim 2 , and template.5. The catheter system of claim 4 , wherein the gauge is configured to be coupled to the working surface via a hook and loop fastener.6. The catheter system of claim 4 , wherein the gauge is configured to be coupled to the working surface via adhesive.7. The catheter ...

METHODS AND DEVICES FOR APPLYING ENERGY TO BODILY TISSUES

Devices and methods for treating tissue with microwave energy used in applications such as destroying a soft tissue by microwave ablation and/or creating point, line, area or volumetric lesions. Various embodiments of flexible, low-profile devices are also disclosed where such device can be inserted non-invasively or minimally invasively near or into the target tissue such as cardiac tissue. The devices disclosed herein comprise antennas wherein the field profile generated by an antenna is tailored and optimized for a particular clinical application. The antennas use unique properties of microwaves such as interaction of a microwave field with one or more conductive or non-conductive shaping elements to shape or redistribute the microwave field. 1a microwave antenna coupled to the energy source, the microwave antenna comprising a radiating element and a shaping element comprising an electrically conductive material;the radiating element comprises a planar loop shape having a transverse section that is generally perpendicular to a distal region of the transmission line such that the transverse section bends in a plane of the radiating element after deployment such that the transverse section is atraumatic and conforms to target tissue anatomy, the radiating element configured to emit a volumetric microwave field when energized by the energy source; andwhere the shaping element is electrically insulated from the radiating element and is positioned adjacent to the radiating element such that the shaping element is configured to couple to the microwave field to alter a shape of the microwave field to be limited uniformly around the microwave antenna.. A microwave energy delivery device for supplying energy from an energy source having a transmission line, the microwave energy delivery device comprising: This application is a continuation of U.S. patent application Ser. No. 16/057,506 filed Aug. 7, 2018 (now U.S. Pat. No. 10,869,720) which is a continuation of U.S. ...

Blade deployment mechanisms for surgical forceps

A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.

Electrosurgical instrument with restricted trigger

An apparatus for operating on tissue includes an end effector, a first actuator, and a second actuator. The end effector includes a first jaw pivotable relative to a second jaw to a closed position. The first actuator is movable from a first position to a second position to pivot the first jaw to the closed position. The first actuator engages the second actuator in the second position to selectively provide RF energy to the end effector.

Tissue dissection device and related methods of use

Embodiments of the present disclosure include a method for treating tissue. The method may include delivering a medical device through a channel of an endoscopic device, wherein the medical device may include an elongate member, a cap coupled to a distal end of the elongate member and having a cavity, and an electrically-conductive tool extending into the cavity of the cap. The method may also include extending a portion of the medical device out of the channel of the endoscopic device and to the tissue, drawing a portion of the tissue into the cavity of the cap, electrically activating the tool to pierce the portion of the tissue, and cutting the tissue by moving the medical device along a plane of the tissue.

Devices for tissue separation and related methods of use

The present disclosure is directed to a medical instrument. The medical instrument may include a shaft having a distal end configured to cauterize tissue. An expandable member may be positioned adjacent the distal end of the shaft. The expandable member may be configured for deployment between a collapsed configuration and an expanded configuration.

Flexible probe with adjustable tip

An instrument includes a handle portion, an actuator, a shaft, a rigid member, and an angular control mechanism. The shaft has a proximal end and a distal end with an electrode region, and a flexible region in between. Moving the actuator causes portions of the flexible region distal of a pivot region to bend such that an angular orientation and a radial offset of the electrode region reach a maximum angular orientation and a maximum radial offset, respectively, when the actuator reaches the end position. A distal portion of the rigid member defines the pivot region. Moving the rigid member along the shaft causes the pivot region to translate. The maximum radial offset varies depending on the position of the pivot region. The angular control mechanism is configured to control the angular

DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

Systems, methods and devices for the treatment of tissue are disclosed. A system includes an elongate tube with a distal portion. A treatment element is positioned on the elongate tube distal portion, the treatment element constructed and arranged to treat target tissue. In one embodiment, gastrointestinal tissue is modified for the treatment of diabetes. 1. A system for treating diabetes in a patient , the system comprising a body access device and a treatment device including:an elongate tube having a distal portion;a viewing component constructed and arranged to allow the duodenal mucosa to be evaluated, the viewing component comprising an imaging device mounted on the body access device, the imaging device configured to provide direct visualization of internal body spaces and tissue;a controller constructed and arranged to select a target area of the patient's duodenal mucosa to treat;a treating component constructed and arranged to treat a treatment area of the patient's duodenal mucosa, such that the treatment leaves the patient's duodenum anatomically intact with respect to the patient's stomach and jejunum, the treating component comprising a treatment element positioned on the elongate tube distal portion, said treatment element configured to treat mucosal tissue, wherein the treatment element comprises a balloon constructed and arranged to receive a hot fluid to circumferentially deliver energy to a wall of the small intestine for controlled depth ablation of the mucosal tissue, the controller constructed and arranged to provide the hot fluid to the balloon and to adjust the pressure within the balloon; anda plurality of needles configured to expand a full circumferential portion of said submucosal tissue to increase a target treatment volume;wherein the body access device is configured to be advanced with the elongate tube.2. The system of wherein the treating component is adapted to remove the patient's duodenal mucosa and the treatment comprises ...

VESSEL SEALER AND DIVIDER WITH NON-CONDUCTIVE STOP MEMBERS

An endoscopic bipolar forceps includes an elongated shaft having opposing jaw members at a distal end thereof. The jaw members are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The jaws members are connected to a source of electrical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. At least one non-conductive and spaced-apart stop member is disposed on an inner-facing surface of the jaw members to regulate the gap distance between the jaw members when tissue is held therebetween. The forceps also includes a longitudinally reciprocating knife which severs the tissue after sealing at a location which is proximate the sealing site. 1. (canceled)2. A bipolar electrosurgical instrument , comprising:a housing;an elongated shaft extending from the housing;opposing first and second jaw members disposed at a distal end of the elongated shaft, at least one of the first or second jaw members movable relative to the other from a first position wherein the first and second jaw members are disposed in spaced relation relative to one another to a second position wherein the first and second jaw members are closer to one another, the first and second jaw members including first and second seal surfaces, respectively, extending along a respective length thereof and adaptable to connect to a source of electrical energy such that the first and second seal surfaces are capable of conducting energy through tissue held therebetween;the first seal surface including a knife channel defined therein and extending along a length thereof;a plurality of pairs of first stop members spaced-apart along at least a portion of the length of the first seal surface, each pair of first stop members including one stop member disposed on one side of the knife ...

ELECTROSURGICAL DEVICES WITH BALUN STRUCTURE FOR AIR EXPOSURE OF ANTENNA RADIATING SECTION AND METHOD OF DIRECTING ENERGY TO TISSUE USING SAME

An energy applicator for directing energy to tissue includes a feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween, and an antenna assembly having a radiating section operably coupled to the feedline. The energy applicator also includes a first balun structure configured to substantially confine energy to the radiating section when the energy applicator is energized and disposed in tissue, and a second balun structure configured to substantially prevent energy emitted from the radiating section from propagating proximal to the second balun structure along the feedline when the energy applicator is energized but not disposed in tissue. 116-. (canceled)17. An energy applicator for directing energy to tissue , comprising:an outer conductor configured to be coupled to an electrosurgical power generating source; and a first balun insulator disposed around the outer conductor; and', a balun short electrically coupled to the outer conductor; and', 'a segment extending proximally relative to the balun short, the segment electrically coupled to the outer conductor at a location proximal of the balun short., 'a first balun outer conductor disposed around the first balun insulator, the first balun outer conductor including], 'a first balun portion including18. The energy applicator according to claim 17 , wherein the balun short is disposed adjacent a proximal portion of the first balun insulator.19. The energy applicator according to claim 17 , wherein the first balun insulator terminates distally of the balun short of the first balun outer conductor.20. The energy applicator according to claim 17 , wherein the first balun insulator extends distally beyond a distal-most end of the first balun outer conductor.21. The energy applicator according to claim 17 , wherein the first balun outer conductor is in direct contact with the first balun insulator.22. The energy applicator according to claim 17 , wherein the balun short of ...

Atraumatic Medical Device

A catheter with a spring tip that facilitates atraumatic initial placement and also continues to protect tissue contacted by the catheter device subsequent to the initial placement. The spring tip is shock-absorbing and axially compliant and allows enhanced use of various devices in conjunction with the tip such as bioptomes, electrodes, needles, flushing catheters, delivery catheters, and the like. The atraumatic shock-absorbing tip could include conductive or non-conductive materials. 1. A method of engaging target tissue with a catheter comprising:navigating a catheter having a distal spring tip to target tissue;contacting the target tissue with the spring tip;axially compressing the spring tip against the target tissue;performing a procedure on the target tissue while maintaining contact between the tissue and the spring tip.2. The method of wherein navigating a catheter having a distal spring tip to target tissue comprises navigating a catheter having a mesh spring tip.3. The method of wherein navigating a catheter having a distal spring tip to target tissue comprises navigating a catheter having a foam spring tip.4. The method of wherein axially compressing the spring tip against the target tissue comprises advancing the catheter toward the target tissue.5. The method of wherein contacting the target tissue with the spring tip comprises magnetically attracting the spring tip to the target tissue.6. The method of wherein performing a procedure on the target tissue comprises sending electricity through the tissue using the spring tip as an electrode.7. The method of wherein maintaining contact between the tissue and the spring tip comprises positioning the spring tip such that biological movement of the target tissue is absorbed by the spring tip without affecting a position of the catheter.8. The method of wherein performing a procedure on the target tissue comprises advancing a tool through a lumen in the catheter and through the spring tip to engage the ...

Electrosurgical apparatus

A method and apparatus for creating lesions in a tissue comprising a puncturing member and a probe. The puncturing member comprises a body with a proximal portion comprising a hub, a distal portion comprising a conductive tip, and a lumen extending between the proximal and distal portion. The probe comprises a handle at the proximal end and a probe body, wherein the probe body is dimensioned to extend through the lumen of the puncturing member, and wherein the probe body comprises at least one displacement portion that is biased to contact the inner wall of the puncturing member when the probe is inserted into the puncturing member, whereby when the probe body contacts the inner wall, energy is delivered from the probe to the conductive tip of the puncturing member.

ELECTROSURGICAL INSTRUMENTS AND CONNECTIONS THERETO

An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes. The instrument is removably connectable to an electrosurgical unit via an electrosurgical connector extending from the instrument and a receptacle on the electrosurgical unit. The electrosurgical instrument is rotatable without disrupting electrical connection to the electrodes of the jaws. One or more of the electrodes is retractable. The electrosurgical unit and instrument optimally seals and/or cuts tissue based on identifying the tissue and monitoring the modification of the tissue by the application of radio frequency energy. 1. An electrosurgical system comprising an elongate shaft;', 'an actuator coupled to the elongate shaft; and', 'first and second jaws coupled to the elongate shaft, the first jaw comprising a first electrode, the second jaw comprising a second electrode and a third electrode, and the actuator arranged to open and close the first and second jaws; and, 'an electrosurgical instrument comprisingan electrosurgical generator arranged to supply radiofrequency (RF) energy to the electrosurgical instrument removably coupled to the electrosurgical generator, the generator being arranged to supply RF energy between the first electrode and the second electrode, determine a phase value of the supplied RF energy and to determine when the determined phase value of the supplied RF energy equals or exceeds a predetermined phase value; and the generator, after determining the determined phase value of the supplied RF energy equals or has exceeded the predetermined phase value, is arranged to supply RF energy between the second and third electrodes instead of the first and second electrodes and to increase voltage of the supplied RF energy between the second and third electrodes.2. The system of wherein:the first jaw comprises a fourth electrode being outside the first and second jaws and not between the ...

Surgical instruments with articulating shafts

Various embodiments are directed to articulatable surgical instruments. Some embodiments comprise an end effector to treat tissue, where the end effector comprises an ultrasonic blade. A hollow shaft may extend proximally from the end effector along a longitudinal axis. A waveguide may extend through the shaft and may be acoustically coupled to the ultrasonic blade. The waveguide may comprise a distally positioned flange positioned within the hollow shaft proximally from the blade and may be held stationary at a first pivot point positioned within the hollow shaft proximally from the flange. A reciprocating wedge may be positioned within the hollow shaft such that distal motion of the wedge pushes the wedge between the flange and the hollow shaft, causing the ultrasonic blade to pivot about the first pivot point in a first direction.

BASKET APPARATUS

A basket apparatus is described that assists in removing objects from within a patient. The apparatus includes a number of pull wires, each pull wire physically coupled to a different capstan that individually actuates one of the pull wires. The apparatus also includes an outer support shaft itself including a number of channels through which the pull wires traverse. The portions of the pull wires extending out of the outer support shaft form a basket of adjustable size, shape, and position. The pull wires are attached together at a tip located at a distal end of the basket apparatus. By controlling the actuation of the various pull wires, the basket's shape, position size can be manipulated to reposition the basket around an object located within a patient, independent of or in conjunction with motion of the remainder of the apparatus or an associated endoscope.

SURGICAL INSTRUMENT WITH INTERCHANGEABLE MICRO-TIPS

A surgical instrument includes a housing, a shaft extending from the housing, and an end effector assembly that is disposed at a distal end of the shaft. The end effector assembly includes a tubular portion, a connection arm, and a toolbox. The tubular portion defines a lumen and the connection arm is extendable from the lumen. The toolbox has a micro-tip that is configured to be selectively secured to a connection tip of the connection arm. The toolbox has a transport configuration where the toolbox is disposed within the lumen and a deployed configuration where the toolbox is disposed entirely outside of the lumen. 1. (canceled)2. A surgical instrument comprising:a housing;a shaft extending from the housing; andan end effector assembly disposed at a distal end of the shaft, the end effector assembly including:a tubular portion defining a lumen;a connection arm extendable from the lumen of the tubular portion and having a connection tip;a toolbox having a micro-tip that is configured to be selectively secured to the connection tip of the connection arm, the toolbox having a transport configuration where the toolbox is disposed within the lumen of the tubular portion and a deployed configuration where the toolbox is disposed entirely outside of the lumen; anda finger distally extending from the tubular portion to an energy tip, the energy tip configured to deliver electrosurgical energy to tissue.3. The surgical instrument according to claim 2 , wherein in the deployed configuration of the toolbox claim 2 , a connection end of the micro-tip is engageable by the connection tip of the connection arm.4. The surgical instrument according to claim 3 , wherein the connection tip of the connection arm is securable to the connection end of the micro-tips.5. The surgical instrument according to claim 4 , wherein the connection tip includes an electromagnet.6. The surgical instrument according to claim 2 , wherein the micro-tip is removable from the toolbox.7. The surgical ...

Device for laparoscopic surgery

A surgical device which combines cautery and tissue debris conveyance via a combination of suction and an Archimedes screw, the cautery electrode encased within the Archimedes screw, the device comprising a device body housing a motor for rotating the screw, a cannula having an aperture for exposing an instrument, extending from the body portion, and a connector system operatively associated with the body portion, the connector system organized to provide pre-determined relative locations of connection for operably connecting the cannula, a cautery electrode and an Archimedes screw to the device body such the cautery electrode tip is positionable outside the aperture of the cannula and the Archimedes screw is disposed within the cannula in a position for conveying tissue entering the cannula via suction.

Ablation system with automated ablation energy element

An ablation instrument (e.g., an ablation balloon catheter system) includes an elongate catheter having a housing with a window formed therein. An energy emitter is coupled to the elongate catheter and is configured to deliver ablative energy. A controller is received within the window and is coupled to the energy emitter such that axial movement of the controller within the window is translated to axial movement of the energy emitter and rotation of the controller within the window is translated into rotation of the energy emitter. The instrument includes a motor that is at least partially disposed within the housing of the catheter; a first gear that is operatively connected to and driven by the motor; and a second gear that is coupled to the energy emitter and is driven by the first gear to cause rotation of the energy emitter, while allowing the energy emitter to move axially.

MINIMALLY INVASIVE METHODS FOR MULTI-FLUID TISSUE ABLATION

Prostate treatment using fluid stream to resect prostate tissue, thereby relieving symptoms of conditions such as BPH, prostatitis, and prostatic carcinoma. A device having a fluid delivery element is positioned within a lumen of the urethra within the prostate. A fluid stream is directed outwardly from the fluid delivery element toward a wall of the urethral lumen. The fluid delivery element is moved to scan the fluid stream over the wall to remove a volume of tissue surrounding the lumen. The fluid may be combined with therapeutically active substances or with substances that increase resection efficiency. Fluid force may be adjusted to provide selective tissue resection such that soft tissue is removed while harder tissue is left undamaged. In order to gain a working space within the urethra, another fluid may be introduced to insufflate the urethra in the region of treatment. 1. A tissue resection device comprising:a shaft having a proximal end and a distal end;at least one energy source positioned in an energy delivery region on the shaft configured to deliver energy radially outwardly; andan aspiration lumen on the shaft configured to remove resected tissue;a lumen in the shaft for flushing with a fluid to help remove the tissue resection products;wherein the energy source is adapted to be translated and rotated relative to the shaft.2. The tissue resection device of claim 1 , wherein the shaft has a width in the range from 1 mm to 10 mm and a length in the range from 15 cm to 25 cm.3. The tissue resection device of claim 1 , wherein the energy source is movable relative to the shaft to selectively direct the energy at different regions of the tissue.4. The tissue resection device as in claim 3 , wherein the energy source is adapted to be translated claim 3 , rotated claim 3 , oscillated claim 3 , and rotationally oscillated relative to the shaft.5. The tissue resection device of claim 1 , further comprising an expandable anchor near the distal end for ...

Powered bipolar resectoscope

An electrosurgical system includes a resectoscope and a generator. The resectoscope includes a fixed electrode, a movable electrode movable relative to the fixed electrode, and first and second switches actuated in first and second positions of the movable electrode, respectively. The generator is configured to supply energy to the fixed electrode and/or the movable electrode when the movable electrode is moving from the first position to the second position and to inhibit the supply of energy when the movable electrode is moving from the second position to the first position. The generator is configured to determine a direction of movement of the movable electrode based upon signals received from the first and second switches.

VESSEL SEALER AND DIVIDER FOR USE WITH SMALL TROCARS AND CANNULAS

An endoscopic bipolar forceps includes a housing and a shaft affixed to the housing. The shaft includes a longitudinal axis defined therethrough and a pair of jaw members attached to a distal end thereof. The forceps also includes a drive assembly for moving one of the jaw members relative to the other jaw member from a first position wherein the movable jaw members are disposed in spaced relation relative to each other to a second position wherein the jaw members are closer one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force a drive flange of the movable handle into mechanical cooperation with the drive assembly to move the jaw members from the open and closed positions. The pivot is located a fixed distance from the longitudinal axis and the drive flange is located generally along the longitudinal axis. The forceps is connected to a source of electrosurgical energy connected to each jaw member such that the jaw members are capable of conducting bipolar energy through tissue held therebetween to effect a tissue seal. 113-. (canceled)14. A vessel sealer and divider , comprising:a housing;a handle movable relative to the housing about a pivot;a shaft extending distally from the housing;first and second jaw members extending distally from the shaft, the first jaw member pivotable with respect to the shaft and the second jaw member;a drive assembly having a drive sleeve configured to pivot the first jaw member relative to the shaft and the second jaw member from a first position wherein the first and second jaw members are disposed in spaced relation to a second position wherein the first and second jaw members are closer together, the drive assembly including a proximal stop disposed about and fixed relative to the drive sleeve, a distal stop disposed about and movable relative to the drive sleeve, and a spring disposed about the drive sleeve between the proximal stop and the distal stop; anda drive flange ...

A treatment device and a treatment system

A treatment device ( 100 ) and a treatment system are provided. The treatment device ( 100 ) is suitable for temporarily or permanently placing a therapeutic device ( 112 ) in a part of a corpus of a living being. The treatment device ( 100 ) comprises an elongated body ( 102 ) for being inserted in the part of the corpus. The elongated body ( 102 ) comprises a channel ( 110 ) and an impedance sensor element ( 104 ). The channel ( 110 ) is for guiding the therapeutic device ( 112 ) to a specific position (PI) within the channel ( 110 ) and/or for holding the therapeutic device ( 112 ) at a specific position (PI) within the channel ( 110 ). The impedance sensor element ( 1040 ) is configured to be coupled to a detection device for detecting the presence of the therapeutic device ( 112 ) at the specific position (PI) on basis of a change of a signal provided by the impedance sensor element ( 104 ).

SOFTWARE ALGORITHMS FOR ELECTROSURGICAL INSTRUMENTS

A surgical system includes a module for compiling a plurality of operational parameters of the surgical system during a plurality of treatment cycles performed by the surgical system. The module includes a processor and a memory unit, the processor configured to store in the memory unit values of the plurality of operational parameters associated with each of the plurality of treatment cycles, wherein the processor is configured to identify a subset of the stored values of the plurality of operational parameters temporally proximate to an intervening event. 123-. (canceled)24. A system for use with a surgical instrument , the system comprising:an end effector comprising first and second electrodes;a memory circuit to store computer-executable instructions for performing a biological material accumulation monitoring process; and initiate a first treatment cycle;', 'measure a first plurality of force values during the first treatment cycle;', 'determine a first minimum force value for the first treatment cycle based on the measured first plurality of force values;', 'compare the first minimum force value to a predetermined force threshold; and', 'generate an alert based on comparing the first minimum force value to the predetermined force threshold., 'a processor coupled to the memory circuit, the processor configured to execute the computer-executable instructions to25. The system of claim 24 , wherein the processor is further configured to execute the computer-executable instructions to:initiate a second treatment cycle;measure a second plurality of force values during the second treatment cycle;determine a second minimum force value for the second treatment cycle based on the measured second plurality of force values;compare the second minimum force value to the predetermined force threshold; andgenerate a second alert based on comparing the second minimum force value to the predetermined force threshold.26. The system of claim 25 , wherein the processor is further ...

Vessel sealer and divider with non-conductive stop members

An endoscopic bipolar forceps includes an elongated shaft having opposing jaw members at a distal end thereof. The jaw members are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The jaws members are connected to a source of electrical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. At least one non-conductive and spaced-apart stop member is disposed on an inner-facing surface of the jaw members to regulate the gap distance between the jaw members when tissue is held therebetween. The forceps also includes a longitudinally reciprocating knife which severs the tissue after sealing at a location which is proximate the sealing site.