Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 13804. Отображено 100.
26-01-2012 дата публикации

Control System for a Stent Delivery System

Номер: US20120022631A1
Автор: Kieran Costello
Принадлежит: Cook Medical Technologies LLC

A control system for controlling movement of a stent delivery system, a stent delivery system and a method for controlling movement of a stent delivery system are provided. The control system includes a housing having a chamber formed therein, a first drive at least partially positioned within the housing and operably connected to the first shaft of the delivery system and a second drive at least partially positioned within the housing and operably connected to the second shaft. The control system also includes a pressure controller operably connected to the housing and configured to change the pressure within the chamber. The first drive and the second drives are movable in response to the pressure change within the chamber and movement of the second drive relative to the first drive causes the second shaft to move relative to the first shaft to expand or constrain a stent operably connected thereto.

Подробнее
Номер записи: 1
02-02-2012 дата публикации

Drug Combinations Useful for Prevention of Restenosis

Номер: US20120029475A1
Автор: Gerald H. Llanos, Gregory A. Kopia, Robert Falotico
Принадлежит: Individual

The current invention comprises an approach to solving the clinical problem of restenosis, which involves the administration of combinations of drugs to patients undergoing PTCA or stent implantation. In one embodiment of the invention, an antiproliferative agent such as rapamycin, vincristine or taxol is administered in combination with the anti-inflammatory agent, dexamethasone, to patients systemically, either subcutaneously or intravenously. In another embodiment of the invention, the antiproliferative and anti-inflammatory agents are bound in a single formulation to the surface of a stent by means of incorporation within either a biodegradeable or biostable polymeric coating. Alternatively, such drug combinations could be incorporated into a stent constructed with a grooved reservoir.

Подробнее
Номер записи: 2
02-02-2012 дата публикации

Controlled release and recapture prosthetic deployment device

Номер: US20120029607A1
Автор: Kenneth C. Kennedy, Vincent Mchugo
Принадлежит: Cook Medical Technologies LLC

A delivery device for deploying and resheathing an expandable prosthesis and method of use thereof are described. The delivery device includes a fixed outer sheath and a pusher member that is configured for retracting in a proximal direction and resheathing the prosthesis. The device includes two plates engaging the pusher member, with a first plate configured engage the pusher member to prevent proximal movement and the other plate configured to engage the pusher member for distal movement.

Подробнее
Номер записи: 3
09-02-2012 дата публикации

Ring stent

Номер: US20120035710A1
Автор: David Ernest Hartley
Принадлежит: David Ernest Hartley

A stent arrangement which has at least a first ring ( 3 ) and zig zag struts ( 5 ) extending axially from the periphery of the ring. There can be first and second rings ( 3, 4 ) axially spaced apart and defining substantially parallel planes and a plurality of zig zag portions ( 5 ) between the first and second ring portions around the periphery thereof. The stent can be formed from a single wire or laser cut from a cannula and can be covered or uncovered.

Подробнее
Номер записи: 4
23-02-2012 дата публикации

Forced deployment sequence handle assembly with independent actuating mechanism

Номер: US20120046652A1
Автор: Justin W. Sokel
Принадлежит: WL Gore and Associates Inc

A handle assembly for use in the deployment of a medical device via a plurality of deployment lines that extend through a catheter. The handle assembly includes a plurality of removable members for deployment or actuation of the medical device. The handle assembly also includes an actuating mechanism for displacing a wire extending through the catheter for actuating the medical device independently of the plurality of removable members.

Подробнее
Номер записи: 5
23-02-2012 дата публикации

Medical devices and delivery systems for delivering medical devices

Номер: US20120046740A1
Автор: Amr Salahieh, Benjamin Sutton, Brian D. Brandt, Brian McCollum, Daniel Hildebrand, David Paul, Emma Leung, Kenneth M. Martin
Принадлежит: Sadra Medical Inc

Medical devices and delivery systems for delivering medical devices to a target location within a subject. In some embodiments the medical devices can be locked in a fully deployed and locked configuration. In some embodiments the delivery systems are configured with a single actuator to control the movement of multiple components of the delivery system. In some embodiments the actuator controls the independent and dependent movement of multiple components of the delivery system.

Подробнее
Номер записи: 6
08-03-2012 дата публикации

Prosthesis delivery systems and methods

Номер: US20120059450A1
Автор: Andrew L. Chiang, Lee Bolduc
Принадлежит: Aptus Endosystems Inc

Apparatus and method deliver a prosthesis into a hollow body organ or blood vessel. The systems and methods make use of a catheter. A carrier on the distal end of the catheter is sized and configured to carry the prosthesis. A release mechanism and an enclosure mechanism on the distal end are operable to retain and enclose the prosthesis on the carrier. The release mechanism and the enclosure mechanism are also operable to selectively expose and release the prosthesis from the carrier for deployment in the hollow body organ or blood vessel.

Подробнее
Номер записи: 7
15-03-2012 дата публикации

Intravascular hinge stent

Номер: US20120065723A1
Автор: Joseph Michael Thielen, William Joseph Drasler
Принадлежит: Individual

A balloon or self expandable endoprosthesis formed of a single or multiple joined stent sections. Each section has a node and strut structure extending throughout in order to uncouple expansion forces of the stent to hold a blood vessel outward from crush forces that resist the formation of an oval shape during crush deformation. The hinge can bend in the direction of a uniformly curved surface of the stent but not in the radial direction. The strut can bend in the radial direction but not in the uniformly curved surface of the stent. The widths, lengths, and radial dimensions of the hinges and struts provide a balloon-expandable hinge stent that is non-crushable. For a self-expanding stent the hinge and strut dimensions provide expansion forces that are controlled independently from crush forces. Expansion properties are determined by the hinge dimensions and crush properties are determined independently by strut dimensions.

Подробнее
Номер записи: 8
22-03-2012 дата публикации

Stent With Hollow Drug-Eluting Elements

Номер: US20120071961A1
Автор: Ryan Bienvenu
Принадлежит: Medtronic Vascular Inc

A stent includes a plurality of cylindrical elements joined along a common longitudinal axis to form a tube. The cylindrical elements include struts joined by crowns. Hollow, drug-eluting elements are disposed between adjacent cylindrical elements and connect adjacent cylindrical elements to each other. A therapeutic substance fills the lumen of the drug-eluting elements, and openings in the walls of the drug-eluting elements allow elution of therapeutic substance from the lumen for treatment of a vessel.

Подробнее
Номер записи: 9
29-03-2012 дата публикации

Stent with support braces

Номер: US20120078341A1
Автор: Stephen Kao
Принадлежит: Veniti Inc

A stent includes expandable rings formed from a plurality of interconnected struts. A plurality of bridges couple adjacent rings together. The bridges are connected to adjacent rings at first and second connection points, and a first brace element is disposed therebetween. The first connection point is circumferentially offset relative to the second connection point so that the bridge is transverse to the longitudinal axis of the stent. The first brace element of one bridge engages an adjacent bridge or a brace element of the adjacent bridge when the corresponding adjacent rings are in the contracted configuration thereby providing additional support and rigidity to the stent to lessen buckling of the stent during loading onto a delivery catheter or during deployment therefrom.

Подробнее
Номер записи: 10
12-04-2012 дата публикации

Medical implant, in particular a stent, for implantation in an animal body and/or human body

Номер: US20120089217A1
Автор: Frank Bakczewitz, Steffen Mews
Принадлежит: BIOTRONIK AG

A medical implant ( 10 a , 10 b ), in particular a stent ( 12 a , 12 b ), for implantation in an animal body and/or human body ( 14 a , 14 b ), comprising a base body ( 16 a , 16 b ) which includes at least two segments ( 18 a , 18 a′, 18 b , 18 b′; 20 a , 20 a′, 20 b , 20 b ′) having at least two deflection points ( 24 a , 24 b ; 26 a , 26 b ) that are diametrically opposed in the axial direction ( 22 a , 22 b ), and at least one adjusting means ( 28 a , 28 b ; 30 a , 30 b ) that acts on the deflection points ( 24 a , 24 b ; 26 a , 26 b ) to adjust an extension ( 32 a , 32 b ) of the base body ( 16 a , 16 b ) in the circumferential direction ( 34 a , 34 b ). It is provided that an axial distance ( 36 a , 36 b ) between the two deflection points ( 24 a , 24 b ; 26 a , 26 b ) can be shortened using the adjusting means ( 28 a , 28 b ; 30 a , 30 b ).

Подробнее
Номер записи: 11
19-04-2012 дата публикации

Method To Minimize Chain Scission And Monomer Generation In Processing of Poly(L-Lactide) Stent

Номер: US20120091633A1
Автор: James Oberhauser, Yunbing Wang
Принадлежит: Abbott Cardiovascular Systems Inc

Methods of fabricating an implantable medical devices such as stents made from biodegradable polymers are disclosed that reduce or minimize chain scission and monomer generation during processing steps. The method includes processing a poly(L-lactide) resin having an number average molecular weight between 150 to 200 kD in an extruder in a molten state. A poly(L-lactide) tube is formed from the processed resin and a stent is fabricated from the tube. The number average molecular weight of the poly(L-lactide) of the stent after sterilization is 70 to 100 kD.

Подробнее
Номер записи: 12
03-05-2012 дата публикации

Modular vascular prosthesis and methods of use

Номер: US20120102708A1
Автор: David P. Strauss, Duane DeMore, Michael R. Bialas, Rainer Bregulla, Robert Barbier
Принадлежит: Abbott Laboratories Vascular Enterprises Ltd

The present invention relates a vascular prosthesis and related assembly methods that includes a plurality of modular segments inter-engaged by flexible, and preferably lockable, inter-engageable elements forming joints or other connector areas. The segments may have a number of different mechanical properties and may be assembled by the clinician, through mechanical or chemical joining, to customize the prosthesis for a specific patient or application.

Подробнее
Номер записи: 13
03-05-2012 дата публикации

Medical device for releasing in a hollow organ and insertion system for medical devices

Номер: US20120109332A1
Автор: Giorgio Cattaneo, Werner Mailaender
Принадлежит: Acandis GmbH and Co KG

A medical device for releasing in a hollow organ having a hollow cylindrical body that can be transferred in a compressed state having a reduced diameter and in an expanded state having an enlarged diameter. The body having a stop means at the proximal and/or distal axial end thereof having at least one retaining element connected to the body by a connecting segment. The retaining element and the body are decoupled by the connecting segment such that the retaining element has a smaller curvature in the compressed state than the body. The connecting segment elastically connects the retaining element and the body, wherein the contour of the retaining element in the compressed state of the body protrudes past the outer circumference of the body such that the retaining element is displaceable radially inward relative to the body into a stop position through the inner wall of an insertion system.

Подробнее
Номер записи: 14
10-05-2012 дата публикации

Stent delivery system

Номер: US20120116493A1
Автор: Kinya Harada
Принадлежит: Terumo Corp

A stent delivery system includes a distal-side tube, a proximal-side tube, a fixing tube, a stent containing tubular member, a stent in the stent containing tubular member, and a pulling wire for moving the stent containing tubular member to the proximal side. The distal-side tube includes a distal-side priming slit provided in a side wall in proximity to a stent proximal end lock section and a proximal-side priming slit provided in a side wall on the proximal side of the distal-side tube. The slits are opened by injecting liquid, with the distal opening or the rear end opening of a guide wire lumen of the distal-side tube closed.

Подробнее
Номер записи: 15
07-06-2012 дата публикации

Transluminal delivery system

Номер: US20120143304A1
Автор: Beate Walter, Daniel Dietrich, Erhard Elsasser, Martin Wübbeling
Принадлежит: CR Bard Inc

There is disclosed herein a transluminal delivery system for a self-expanding luminal prosthesis, the system comprising an inner catheter component ( 30 ) and a retractable sheath ( 12 ) to surround the component thereby to define an annular space to receive the prosthesis ( 10 ), the component exhibiting an anti-sliding component, for abutting a luminal surface portion of the prosthesis ( 10 ) to restrain the prosthesis from sliding with the sheath ( 12 ), and relative to the inner catheter ( 30 ), while the sheath retracts relative to the prosthesis to release the prosthesis progressively into the target bodily lumen characterised in that the anti-sliding component is or includes at least one sleeve ( 36, 50, 66, 76 ) having a length direction parallel to the longitudinal axis of the annular space and having at least one bound portion ( 33, 52, 64, 65, 74 ) of its length that is not free to slide on the inner catheter, and at least one unbound portion of its length with a capability to slide axially on the inner catheter ( 30 ) and thereby to exhibit a radial swelling capability, to deliver an increase in the radial thickness of the sleeve ( 36, 50, 66, 76 ) while the sheath retracts. Associated methods are also disclosed.

Подробнее
Номер записи: 16
14-06-2012 дата публикации

Apparatus for attaching radiopaque markers to a stent

Номер: US20120144663A1
Автор: Patrick P. Wu
Принадлежит: Abbott Cardiovascular Systems Inc

A mandrel for supporting a stent and rollers for pressing a radiopaque marker into a stent are disclosed. The mandrel can have a forward portion for carrying the stent and a rear portion for urging the stent forward portion into a gap between the rollers. The mandrel may be pushed or pulled into the gap, which is sized to allow the rollers to press the marker into engagement with the stent. Prior to moving the mandrel into the gap, the marker may be placed on a surface of the stent or partially inside a recess in the stent. Several markers can be efficiently and uniformly pressed onto the stent by moving the mandrel into the gap in one continuous movement in an axial or lateral direction. Markers can also be pressed onto the stent by placing the stent in the gap and rotating the stent about its central axis.

Подробнее
Номер записи: 17
21-06-2012 дата публикации

Method for attaching radiopaque markers to a stent

Номер: US20120151744A1
Автор: Patrick P. Wu
Принадлежит: Abbott Cardiovascular Systems Inc

A mandrel for supporting a stent and rollers for pressing a radiopaque marker into a stent are disclosed. The mandrel can have a forward portion for carrying the stent and a rear portion for urging the stent forward portion into a gap between the rollers. The mandrel may be pushed or pulled into the gap, which is sized to allow the rollers to press the marker into engagement with the stent. Prior to moving the mandrel into the gap, the marker may be placed on a surface of the stent or partially inside a recess in the stent. Several markers can be efficiently and uniformly pressed onto the stent by moving the mandrel into the gap in one continuous movement in an axial or lateral direction. Markers can also be pressed onto the stent by placing the stent in the gap and rotating the stent about its central axis.

Подробнее
Номер записи: 18
28-06-2012 дата публикации

Stent

Номер: US20120165920A1
Автор: Alison Julson, Doug Thesingh, Michael P. Meyer, Sandy PATRAS
Принадлежит: Boston Scientific Scimed Inc

An expandable medical framework for implantation in a mammalian body comprises a plurality of serpentine bands and connector columns. Each serpentine band comprises alternating straight band struts and turns. Each connector column comprises a plurality of connector struts and connects adjacent serpentine bands. The turns of a serpentine band comprise connected turns and unconnected turns, each connected turn having a connector strut extending therefrom. Each unconnected turn has no connector struts extending therefrom. The serpentine bands at the ends of the framework are each connected to an intermediate serpentine band via four or more connector struts which are equally spaced about the circumference of the expandable medical framework. Each two adjacent intermediate serpentine bands is connected one to the other via two connector struts which are equally spaced about the circumference of the expandable medical framework.

Подробнее
Номер записи: 19
05-07-2012 дата публикации

Delivery device

Номер: US20120172963A1
Автор: Donagh O'sullivan, Fionán Keady, John Neilan, MICHAEL Ryan
Принадлежит: Cook Ireland Ltd, Cook Medical Technologies LLC

A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device includes an outer sheath that is capable of retracting in a proximal direction and resheathing over the prosthesis in a distal direction. The device includes a drive pulley that can engage gears to retract or resheath the outer catheter in relation to the prosthesis. In some embodiments, the delivery device may include a reinforced outer sheath disposed over an inner elongate member, the reinforced outer sheath comprising a proximal section reinforced with a braid, a distal section reinforced with a coil and an overlapping section extending between the proximal section and the distal section. Additionally or alternatively, the delivery device may include a stabilizing element for releasably holding the stent to the inner catheter.

Подробнее
Номер записи: 20
05-07-2012 дата публикации

Stent delivery system

Номер: US20120172969A1
Автор: Ryota Sugimoto, Takashi Kitaoka
Принадлежит: Terumo Corp

A stent delivery system includes a self-expanding stent, an inner tube body which has a guide wire lumen, and a sheath which has the stent contained within the tip section thereof. The stent can be discharged by moving the sheath to the base end side relative to the inner tube body. The inner tube body is provided at a position within the base end section of the stent and is provided with an elastic member for pressing the stent in the direction to the sheath. The stent is gripped by the elastic member and the sheath and is adapted to be slidable relative to the sheath.

Подробнее
Номер записи: 21
05-07-2012 дата публикации

STENT GRAFT WITH TWO LAYER ePTFE LAYER SYSTEM WITH HIGH PLASTICITY AND HIGH RIGIDITY

Номер: US20120172977A1
Автор: Gunther STOCKERT, Rainer Bregulla
Принадлежит: Abbott Cardiovascular Systems Inc

A vascular prosthesis and method are disclosed comprising a first flexible stent having a lattice structure with a compacted configuration and an expanded configuration, a second flexible stent inside the first flexible stent to form a tubular structure, a first film layer of graft material such as expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, and a second film layer of expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, the second layer having a higher rigidity and a lower plasticity than the first layer.

Подробнее
Номер записи: 22
19-07-2012 дата публикации

Anti-obesity devices

Номер: US20120184967A1
Автор: Andy H. Levine, David A. Melanson, John C. Meade
Принадлежит: GI Dynamics Inc

Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the pyloric portion of the gastrointestinal system and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device in the pyloric portion and a flexible sleeve that extents into the duodenum. The anchor is collapsible for endoscopic delivery and removal.

Подробнее
Номер записи: 23
02-08-2012 дата публикации

Implantable and lumen-supporting stents and related methods of manufacture and use

Номер: US20120197384A1
Автор: Michael J. Lee, Riley King, Stuart Earl Kari
Принадлежит: Individual

An implantable medical stent system, including a radially expandable stent including a filamental structure in a pattern surrounding a bore to form a substantially tubular wall along a length relative to a longitudinal axis; wherein the filamental structure includes at least one actuate crown with a crown peak having a radius of curvature located along a reference axis, and first and second arcuate crown shoulders on first and second sides, respectively, of the reference axis; and wherein the filamental structure also includes at least one pair of adjacent first and second elongated struts extending from the first and second crown shoulders, respectively.

Подробнее
Номер записи: 24
09-08-2012 дата публикации

Intralumenally-implantable frames

Номер: US20120203327A1
Автор: Andrew K. Hoffa, Brian C. Case, Darin G. Schaeffer, Jacob A. Flagle, Michael L. Garrison
Принадлежит: Cook Medical Technologies LLC

Implantable frames for use in body passages are provided herein. The implantable frames can include a plurality of hoop members joined by a plurality of longitudinal connecting members to form a tubular frame defining a cylindrical lumen. The plurality of longitudinal connecting members may include first and second longitudinal connecting members joining a first hoop member to a second hoop member such that the first and second longitudinal connecting members extend across an entire space separating the first and second hoop members.

Подробнее
Номер записи: 25
06-09-2012 дата публикации

Method for making grooves on a luminal surface of an intravascular stent

Номер: US20120223056A1
Автор: Christopher E. Banas, Eugene A. Sprague, Julio C. Palmaz
Принадлежит: Advanced Bio Prosthetic Surfaces Ltd

The invention relates to methods and apparatus for manufacturing intravascular stents wherein the intravascular stent has its inner surface treated to promote the migration of endothelial cells onto the inner surface of the intravascular stent. In particular, the inner surface of the intravascular stent has at least one groove formed therein.

Подробнее
Номер записи: 26
20-09-2012 дата публикации

Prosthetic heart valve delivery apparatus

Номер: US20120239142A1
Автор: David Alon, Jun Liu, Luca Pesce, Michael Popp, Mohammad Jafari, Sergio Delgado
Принадлежит: Edwards Lifesciences Corp

Certain embodiments of the present disclosure provide a prosthetic valve (e.g., prosthetic heart valve) and a valve delivery apparatus for delivery of the prosthetic valve to a native valve site via the human vasculature. The delivery apparatus is particularly suited for advancing a prosthetic heart valve through the aorta (i.e., in a retrograde approach) for replacing a diseased native aortic valve. The delivery apparatus in particular embodiments is configured to deploy a prosthetic valve from a delivery sheath in a precise and controlled manner at the target location within the body.

Подробнее
Номер записи: 27
11-10-2012 дата публикации

Flexible intraluminal scaffold

Номер: US20120259400A1
Автор: Kevin J. Ehrenreich, Randolf Von Oepen
Принадлежит: ABBOTT LABORATORIES

Expandable intraluminal scaffold defining a longitudinal axis is provided, wherein the scaffold includes at least two filaments extending from a head portion disposed along the longitudinal axis at a first longitudinal end, each of the at least two filaments including a free end portion at a second longitudinal end opposite the head portion. The at least two filaments converge toward each other at a juncture disposed proximate the longitudinal axis between the first longitudinal end and the second longitudinal end. A system including a delivery system and the intraluminal scaffold, as well as a method of delivering the scaffold, is also provided.

Подробнее
Номер записи: 28
01-11-2012 дата публикации

Biodegradable Drug Eluting stent Pattern

Номер: US20120277844A1
Автор: Tim Wu
Принадлежит: Individual

In embodiment, pattern for polymeric radially expandable implantable medical devices such as stents for implantation into a bodily lumen are disclosed.

Подробнее
Номер записи: 29
08-11-2012 дата публикации

Helical hybrid stent

Номер: US20120283817A1
Автор: Jacob Richter
Принадлежит: Medinol Ltd

An expandable helical stent is provided, wherein the stent may be formed of an amorphous metal alloy or other non-amorphous metal with a securement. The stent is formed from flat or tubular metal in a helical coiled structure which has an undulating pattern. The main stent component may be formed of a single helically coiled component. Alternatively, a plurality of helically coiled ribbons may be used to form a stent heterogeneous in design, material, or other characteristic particular to that stent. The helical tubular structure may be secured with a securement, such as a weld, interlock or a polymer, to maintain the helical coils in a tubular configuration. The helical coils of the main stent component may be spaced apart or nestled to each other to maintain the tubular shape of the helically coiled stent and prevent the polymer layer from sagging at any point between cycles of the coils.

Подробнее
Номер записи: 30
08-11-2012 дата публикации

Antithrombotic and anti-restenotic drug eluting stent

Номер: US20120283822A1
Автор: Jonathon Z. Zhao, JR.
Принадлежит: Cordis Corp

An expandable medical device includes a plurality of elongated struts, forming a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter. A plurality of different beneficial agents may be loaded into different openings within the struts for delivery to the tissue. For treatment of conditions such as restenosis, different beneficial agents are loaded into different openings in the device to address different biological processes involved in restenosis and are delivered at different release kinetics matched to the biological process treated. The different beneficial agents may also be used to address different diseases, such as restenosis and acute myocardial infarction from the same drug delivery device. In addition, anti-thrombotic agents may be affixed to at least a portion of the surfaces of the medical device for the prevention of sub-acute thrombosis.

Подробнее
Номер записи: 31
22-11-2012 дата публикации

Methods and systems for performing vascular reconstruction

Номер: US20120296408A1
Автор: Donald K. Jones, Vladimir Mitelberg
Принадлежит: Individual

Devices, systems and methods are provided for performing intra-lumenal medical procedures in a desired area of the body. Stents, stent delivery devices and methods of performing medical procedures to redirect and or re-establish the intravascular flow of blood are provided for the treatment of hemorrhagic and ischemic disease states.

Подробнее
Номер записи: 32
22-11-2012 дата публикации

Bioabsorbable stent

Номер: US20120296415A1
Автор: Makoto Onishi, Yotaro Fujita
Принадлежит: Terumo Corp

A bioabsorbable stent has a relatively high radial force and can be placed directly at the lesion without the possibility or reducing the possibility of occluding the lesion again after placement. The bioabsorbable stent is formed from a mixture composed of a bioabsorbable aliphatic polyester and an aromatic compound having one or more aromatic rings.

Подробнее
Номер записи: 33
06-12-2012 дата публикации

Gastrointestinal implant device and delivery system therefor

Номер: US20120310138A1
Автор: Niall Behan
Принадлежит: Vysera Biomedical Ltd

A delivery system comprises a delivery catheter with a distal capsule which contains a scaffold, a valve and a sleeve in the retracted configuration. The delivery system includes a proximal expandable element provided by an inflatable proximal balloon and a distal expandable element provided by a distal balloon. The proximal balloon provides a temporary seal at the proximal side of the valve. The distal balloon provides a temporary distal seal between a distal olive and a distal end of the sleeve. An inflation fluid is introduced into the sleeve between the proximal and distal balloons the fluid causes the sleeve to expand axially to the expanded deployed configuration. When the sleeve is in the extended deployed configuration the distal balloon is deflated, allowing the olive to detach and travel distally. The rest of the delivery system can then be withdrawn proximally, leaving the implant device in situ.

Подробнее
Номер записи: 34
06-12-2012 дата публикации

Prosthesis delivery system

Номер: US20120310322A1
Автор: Jacqueline Farag
Принадлежит: Cook Medical Technologies LLC

A deployment system is configured to deploy a prosthesis into an internal lumen of a patient. The system can include an introducer with the loaded prosthesis. A spacing mechanism can be disposed axially along the introducer. When the prosthesis is mounted onto the introducer in a radially compressed configuration, an end of a first stent and a second stent can engage a contact point of the spacing mechanism to maintain the axial distance between the first and second stents and prevent axial compression of the prosthesis during loading and deployment. The spacing mechanism can reside within the prosthesis and be disposed outwardly away from the introducer to contact the interior surface of the prosthesis. The spacing mechanism can include a flexible longitudinal member, such as a wire or strip, or a tubular body.

Подробнее
Номер записи: 35
13-12-2012 дата публикации

Invasive cardiac valve

Номер: US20120316642A1
Автор: Chengyun Yue, Qifeng Yu, Qiyi Luo, XIANG Liu, Yunlei Wang
Принадлежит: Microport Medical Shanghai Co Ltd

An invasive cardiac valve comprises a tubular stent ( 1 ) and a valve ( 2 ). One end of the tubular stent ( 1 ) is of a frusto-conical structure, the other end is wide open, and the diameter of the open end is greater than the diameter of the frusto-conical end. The valve ( 2 ) is attached to the frusto-conical end of the tubular stent ( 1 ); and a delivery and retrieval hole ( 4 ) of the cardiac valve is provided at the top of the open end of the tubular stent ( 1 ). Because the diameter of the open end is greater than the diameter of the frusto-conical end, the cardiac valve can be effectively fixed in a position of aortic annulus to prevent the cardiac valve displacement caused by the impact of the blood flow. Because the valve ( 2 ) is attached to the frusto-conical end of the tubular stent ( 1 ), the valve ( 2 ) can totally avoid the left and right coronary ostia and does not affect the haemodynamics of the coronary artery. Because a delivery and retrieval hole ( 4 ) of the cardiac valve is provided at the top of the open end of the tubular stent ( 1 ), the cardiac valve can be retrieved and reset at any time by handle control if it is found to be placed in an improper position during the release process.

Подробнее
Номер записи: 36
27-12-2012 дата публикации

Methods of making medical devices

Номер: US20120325774A1
Автор: Andrew Parker Wood, Christopher E. Banas, Conor P. Mullens, Daniel D. Sims, Jeffrey N. Steinmetz
Принадлежит: Advanced Bio Prosthetic Surfaces Ltd

Scaffold-supported metal or pseudometallic film covers suitable for use as medical devices are disclosed together with methods of fabricating the devices. Methods for making the medical devices consist of either providing or forming a scaffold, then depositing a metallic or pseudometallic film cover onto the scaffold in such a manner as to form an integral, substantially monolithic junction between the deposited cover material and the scaffold.

Подробнее
Номер записи: 37
03-01-2013 дата публикации

Spring Controlled Stent Delivery System

Номер: US20130006346A1
Автор: Kieran Costello
Принадлежит: Cook Medical Technologies LLC

A stent delivery system and a method for releasably constraining a stent and a method of implanting a stent are provided. The stent delivery system includes an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft. The stent delivery system also includes a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration. A first biasing member is operably connected to the shaft and the stent and a second biasing member is operably connected to the shaft and the stent. The first and second biasing members have a first configuration cooperatively applying a longitudinal tensioning force to the stent and a second configuration cooperatively releasing the longitudinal tensioning force on the stent.

Подробнее
Номер записи: 38
03-01-2013 дата публикации

Stretchable stent and delivery

Номер: US20130006348A1
Автор: Doug Duchon, Joe Tatalovich, Rich Kusleika
Принадлежит: TYCO HEALTHCARE GROUP LP

An implant delivery catheter enables permanent modification of the implant length in the vicinity of the treatment site prior to radial expansion thereof. The implant is releasable carried between inner and outer tubular members of the delivery catheter which, upon repositioning relative to one another using an actuator mechanism, impart any of tensile, compressile or torquing forces to the implant causing permanent modification of the implant length. In one embodiment, the circumference of the implant is substantially similar both before and after modification of the implant length. In another embodiment, the implant includes a plurality of strut sections interconnected by bridges which are capable of the deformation along the longitudinal axis of the implant.

Подробнее
Номер записи: 39
21-02-2013 дата публикации

Actively Controllable Stent, Stent Graft, Heart Valve and Method of Controlling Same

Номер: US20130046373A1
Автор: Carlos Rivera, Derek Dee Deville, Kevin W. Smith, Korey Kline, Matthew A. Palmer, Max Pierre Mendez, Michael Walter Kirk, Richard Cartledge, Thomas O. Bales, Jr.
Принадлежит: Syntheon Cardiology LLC

Sealable and repositionable implant devices are provided with features that increase the ability of implants such as endovascular grafts and valves to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and/or with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant. A surgical implant includes an implant body and a selectively adjustable assembly attached to the implant body, the assembly having adjustable elements and being operable to cause a configuration change in a portion of the implant body and, thereby, permit implantation of the implant body within an anatomic orifice to effect a seal therein under normal physiological conditions.

Подробнее
Номер записи: 40
28-02-2013 дата публикации

Deformable Lumen Support Devices and Methods of Use

Номер: US20130053943A1
Автор: Andy Edward Denison, Kent C.B. Stalker
Принадлежит: CeloNova Stent Inc

Lumen support devices and methods of their use are provided. A lumen support includes one or more plastically deformable cells having two stable configurations with no stable configurations between the two stable configurations. The lumen support device may be plastically deformed to other stable configurations.

Подробнее
Номер записи: 41
28-03-2013 дата публикации

Distal detachment mechanisms for vascular devices

Номер: US20130079864A1
Автор: Michael C. Brown, Thomas Boden
Принадлежит: Codman and Shurtleff Inc

A system for delivering an expandable implant into the vasculature of a patient, including an elongated core element having a proximal end accessible exterior to the patient and a distal end including at least one feature for engaging a proximal portion of the implant in a collapsed state. The system further includes an expansion limiter having an inner diameter and a length sufficient to cover the proximal portion of the implant and to retain the proximal portion in the collapsed state, and at least one elongated member having a distal end connected to the expansion limiter and a proximal end accessible exterior to the patient to enable proximal movement of the expansion limiter to release the implant.

Подробнее
Номер записи: 42
28-03-2013 дата публикации

Endoluminal prosthesis with steerable branch

Номер: US20130079870A1
Автор: Blayne A. Roeder, Jarin Kratzberg, Matthew S. Huser, Roy K. Greenberg
Принадлежит: CLEVELAND CLINIC FOUNDATION, Cook Medical Technologies LLC

An endoluminal prosthesis may include a tubular main graft body including a sidewall and proximal and distal ends. A first stent may be positioned near the proximal end of the main graft body. A second stent may be positioned adjacent to and distal of the first stent. An opening in the sidewall may be positioned longitudinally between a peak of the first stent and a valley of the second stent. A tubular branch may be disposed in the opening. The branch may include first and second end openings. The branch may be flexibly orientable between a retrograde configuration in which the first end opening is oriented toward the distal end and the second end opening is oriented toward the proximal end and an antegrade configuration in which the first end opening is oriented toward the proximal end and the second end opening is oriented toward the distal end.

Подробнее
Номер записи: 43
11-04-2013 дата публикации

Radially expandable polymer prosthesis and method of making same

Номер: US20130090718A1
Автор: Brenna Hearn Lord, Nicole F. Hou, Timothy A. Limon
Принадлежит: Abbott Cardiovascular Systems Inc

Polymeric stents having fracture toughness and resistance to recoil after deployment are disclosed along with methods of manufacturing such stents. Improvements to mechanical characteristics and other improvements may be achieved by having polymer chains within individual stent struts oriented in a direction that is closer to or in line with the axis of the individual stent struts. The struts are connected to each other by hinge elements that are configured to bend during crimping and deployment of the stent. Ring struts form ring structures. A ring structure can have an overall curvilinear length from about 12 mm to about 15 mm.

Подробнее
Номер записи: 44
18-04-2013 дата публикации

Medical Implant Maintaining Gaps upon Crimping, Method and Delivery Device

Номер: US20130096664A1
Автор: Hou-Sen Lim, Wolfgang Goetz
Принадлежит: Transcatheter Technologies GmbH

An implant, intended to be detachably fixed or crimped on a portion or an outer surface of a catheter for being delivered to an implantation site, includes a longitudinal axis, or an inner space or inner volume longitudinally extending within the implant, and a radial direction perpendicular to the longitudinal axis, space or volume. The implant includes a first structural element having a first portion, a second structural element having a second portion, and one or more interconnecting elements arranged between the first and the second structural elements. In the implant, the first portion and/or the second portion is/are located less radially as regards the longitudinal axis, inner space, or volume than a third portion of the one or more interconnecting elements.

Подробнее
Номер записи: 45
25-04-2013 дата публикации

Implant delivery device adapted to be attached to or interconnected with a catheter, catheter and method

Номер: US20130103131A1
Автор: Hou-Sen Lim, Wolfgang Goetz
Принадлежит: Transcatheter Technologies GmbH

A device is intended to be attached to or interconnected with a medical implant, and intended to be attached to or interconnected with a catheter. The catheter is intended for implanting the implant.

Подробнее
Номер записи: 46
02-05-2013 дата публикации

Delivery system for vascular implant

Номер: US20130110227A1
Автор: Arshad Quadri, J. Brent Ratz
Принадлежит: Cardiaq Valve Technologies Inc

A medical treatment system and method of treatment is described having an implant that can be positioned and deployed, then undeployed to allow repositioning of the implant. The system includes a self-expanding medical implant that longitudinally foreshortens upon radially expanding from a radially compacted state, a distal interface configured to attach the implant to a distal mount of a delivery device, and a proximal interface configured to attach the implant to a proximal mount of the delivery device. Moving the distal mount longitudinally away from the proximal mount applies a longitudinal tension to the implant causing the implant to expand longitudinally and contract radially, and moving the distal mount toward the proximal mount reduces a longitudinal tension in the implant allowing the implant to expand radially toward a fully expanded state.

Подробнее
Номер записи: 47
09-05-2013 дата публикации

Method of making a stent

Номер: US20130115363A1
Автор: Akira Mochizuki, Hiroo Iwata, Ikuo Omura, Shuzo Yamashita, Zhen Yu Jin
Принадлежит: Japan Stent Technology Co Ltd, Tokai University Educational Systems, Toyo Advanced Technologies Co Ltd

A method of making a stent, including preparing a solution containing a composition, the composition comprising a biodegradable polymer and a vascular intimal hyperplasia inhibitor of a kind, including argatroban, which does not inhibit proliferation of endothelial cells, the weight compositional ratio of the polymer to the vascular intimal hyperplasia inhibitor being within the range of 8:2 to 3:7, the composition dissolved in a solvent selected from the group consisting of a mixture of a lower alkyl ketone and methanol, a mixture of a lower alkyl ester and methanol or a mixture of a lower halogenated hydrocarbon and methanol; coating at least an outer surface of a stent body of a cylindrical configuration having outer and inner surfaces with a diamond-like thin film coated on the surfaces; and after the coating, removing the solvent to complete a first coated layer.

Подробнее
Номер записи: 48
09-05-2013 дата публикации

Protuberant Aneurysm Bridging Device and Method of Use

Номер: US20130116774A1
Автор: Brian M. Strauss, Jeffrey J. Valko, Michael R. Henson, Robert A. Pecor
Принадлежит: Reverse Medical LLC

A bridging device for supporting occlusive masses within an aneurysm located at a vascular bifurcation.

Подробнее
Номер записи: 49
16-05-2013 дата публикации

Medical device with keyed locking structures

Номер: US20130123796A1
Автор: Benjamin Sutton, David J. Paul, Takashi Ino
Принадлежит: Boston Scientific Scimed Inc

Medical device delivery systems and methods for making and using medical device delivery systems are disclosed. An example medical device delivery system may include an outer sheath. An inner catheter may be disposed within the outer sheath. An implant may be releasably coupled to the inner catheter. The implant may be configured to shift between a first elongated configuration and a second expanded configuration. A push-pull rod for shifting the implant between the first configuration and the second configuration may be coupled to the inner catheter. A locking assembly may be disposed about the push-pull rod. At least a portion of an outer surface of the push-pull rod may have a non-circular cross-sectional shape. The locking assembly may have an interior passageway with a non-circular cross-sectional shape corresponding to the non-circular cross-sectional shape of the push-pull rod.

Подробнее
Номер записи: 50
16-05-2013 дата публикации

Surgical Implant Devices and Methods for Their Manufacture and Use

Номер: US20130123909A1
Автор: John P. Cartledge, Ralph Edward Gaskins, JR., Richard George Cartledge
Принадлежит: Syntheon Cardiology LLC

A sealable vascular system includes an endovascular implant to be delivered in a compressed or folded state to an implantation site. The endovascular implant includes a tubular implant body and a sealable circumferential collar at said tubular implant body and including a variable sealing device and a control lead traversing from said variable sealing device to a user for controlling said variable sealing device by the user, said variable sealing device and said control lead being cooperatively operable to reversibly expand and contract said sealable circumferential collar such that said sealable circumferential collar is circumferentially adjustable during deployment thereof to achieve a repositionable fluid-tight seal between said sealable circumferential collar and the internal walls of the implantation site.

Подробнее
Номер записи: 51
23-05-2013 дата публикации

Bioabsorbable polymer, non-bioabsorbable metal composite stents

Номер: US20130127094A1
Автор: Vipul Dave
Принадлежит: Cordis Corp

Biocompatible materials may be configured into any number of implantable medical devices including intraluminal stents. The biocompatible material may comprise metallic and non-metallic materials in hybrid structures. In one such structure, a device may be fabricated with one or more elements having an inner metallic frame that is not degradable with an outer shell formed from a polymeric material that is biodegradable by extrusion blow molding. Additionally, therapeutic agents may be incorporated into the microstructure or the bulk material.

Подробнее
Номер записи: 52
20-06-2013 дата публикации

Apparatus for endovascularly replacing a heart valve

Номер: US20130158656A1
Автор: Benjamin Sutton, Brian D. Brandt, David J. Paul
Принадлежит: Boston Scientific Scimed Inc

An apparatus for endovascular replacement of a heart valve may include first and second members which are releasably attached to each other such that the second member participates in engaging the first member with a locking element which cooperates with the first member to lock an expandable anchor of the replacement heart valve in a deployed configuration. Prior to locking and removal of the second member, the locking element may be prevented from engaging the first member by a portion of the second member. Following locking, the second member may be removed.

Подробнее
Номер записи: 53
27-06-2013 дата публикации

Delivery system for staged stent release

Номер: US20130166012A1
Автор: Jason S. Bowe
Принадлежит: Cook Medical Technologies LLC

A prosthesis introducer system may include an introducer. A trigger wire release mechanism and a restraining member may be positioned near the distal end of the introducer. The system may include first and second trigger wires, each including a proximal portion releasably coupleable to a portion of a prosthesis and a distal portion coupled to the trigger wire release mechanism. The second trigger wire may be engaged by the restraining member. Each of the first and second trigger wires may include a taut portion. The second trigger wire may include a slack portion extending distally from the taut portion and positioned distal of the restraining member. Upon actuation of the trigger wire release mechanism, the first trigger wire may be releasable from the prosthesis and the second trigger wire may be releasable subsequent to the release of the first trigger wire.

Подробнее
Номер записи: 54
01-08-2013 дата публикации

Stents with Profiles for Gripping a Balloon Catheter and Molds for Fabricating Stents

Номер: US20130197620A1
Автор: Chris Andrews, Daniel Gene Brown, Hector Onello Torres, Mark Harris
Принадлежит: Advanced Cardiovascular Systems Inc

A radially expandable stent can comprise a proximal section tapering inward to a proximal end of the stent and a distal section tapering inward to a distal end of the stent. The tapered sections can be adapted to improve the attachment of the stent to the delivery system and to facilitate the delivery of the mounted stent into and through a bodily lumen.

Подробнее
Номер записи: 55
22-08-2013 дата публикации

Release device for releasing a medical implant from a catheter and catheter having a release device and method for clamping an implant therein

Номер: US20130218138A1
Автор: Amir Fargahi
Принадлежит: BIOTRONIK AG

An embodiment of the invention relates to a release device for releasing a medical implant from an insertion device, in the case of which the implant can be released by way of a relative motion between a first and a second insertion element, comprising a clamping element for clamping the implant in the insertion device, having a proximal end which is distant from a distal end of the insertion device in the state of use, and a distal end which faces the distal end of the insertion device in the state of use, wherein the clamping unit comprises a first component and at least one second component, which clamp the implant there between in the clamped state. The invention further relates to an insertion device comprising such a release device and a method for clamping an implant in an insertion device.

Подробнее
Номер записи: 56
22-08-2013 дата публикации

Bend-Capable Tubular Prosthesis

Номер: US20130218260A1
Автор: Achim Zipse, Andreas Block, Martin Schlun, Thilo Wack
Принадлежит: CR Bard Inc

A tubular prosthesis having a succession of turns around a longitudinal axis includes connectors between adjacent turns distributed around the circumference of the prosthesis. Each turn includes struts interspersed by inflection zones located at the axial ends of each turn such that, when the prosthesis expands radially, gaps open up between adjacent struts of each of the turn. The inflection zones are distributed regularly around the circumference so that the gaps are substantially the same size as each other around the circumference of the turn. The prosthesis may include a turn that exhibits a stagger zone within which the gap between adjacent struts is of an individual size different from that common to the other gaps of that turn. The inflection zones in that turn that lie circumferentially next to the stagger zone are displaced out of facing relationship with corresponding zones of inflection in the adjacent turn.

Подробнее
Номер записи: 57
29-08-2013 дата публикации

Stent wires, and method for manufacturing such stent wires and stents

Номер: US20130226282A1
Автор: Hyun-Hwa Kwon, Sae-Young Ahn
Принадлежит: MEDISOURCEPLUS CO Ltd

A method for manufacturing stent wires includes preparing three or more annular stent wires which has alternately arranged peaks and valleys, interconnecting the first and second stent wires, such that predetermined peaks of the second stent wire are caught in predetermined valleys of the first stent wire, passing a valley of a third stent wire below a free valley of the first stent wire and a free peak of the second stent wire, and interconnecting the third and second stent wires such that a peak of the third stent wire is caught in a valley of the second stent wire. The stent wires are connected in a stacked manner, thereby simplifying the manufacturing process, lengthening the lifespan of the stent wires, and improving the strength of the connection between two adjacent stent wires.

Подробнее
Номер записи: 58
03-10-2013 дата публикации

High metal to vessel ratio stent and method

Номер: US20130261728A1
Автор: Andrew Kiehl, Jeffery Argentine, Keith Perkins, Samuel Robaina, Walter Bruszewski
Принадлежит: Medtronic Vascular Inc

A method includes covering ostai of branch vessels emanating from a main vessel and an aneurysm with a high metal to vessel ratio stent. A metal to vessel ratio of the high metal to vessel ratio stent is sufficiently high to encourage tissue ingrowth around the high metal to vessel ratio stent yet is sufficiently low to ensure perfusion of the branch vessels through the high metal to vessel ratio stent. The ingrowth of tissue provides secure fixation and sealing of the high metal to vessel ratio stent to the main vessel and remodels and essentially eliminates the aneurysm. Further, as the entire high metal to vessel ratio stent is permeably, the high metal to vessel ratio stent is deployed without having to rotationally position the high metal to vessel ratio stent.

Подробнее
Номер записи: 59
10-10-2013 дата публикации

Stent delivery system

Номер: US20130268051A1
Автор: David Atlani, Gonzague ISSENMANN, Hikmat Hojeibane
Принадлежит: Stentys Sas

A system includes: a stent having a proximal end; a support including the stent engaged thereon, having a longitudinal axis and being equipped with a stop against which the proximal end is applied; a sheath having a distal end, which can slide relative to the support and stop, between a distal overlap position of the stent and a proximal release position for deploying the stent, and a first inflatable balloon situated between the support and stent, including a distal portion that protrudes past the distal end, on the distal side thereof when the latter is in the distal position, and having, on the distal side, a transverse section larger than or equal to that of the sheath, the distal end situated back from the distal end in the proximal direction, and situated opposite the distal portion, such that the distal portion protrudes partially past the distal end of the sheath.

Подробнее
Номер записи: 60
17-10-2013 дата публикации

Stent-graft delivery system having a rotatable single shaft tip capture mechanism

Номер: US20130274859A1
Автор: Jeff Argentine
Принадлежит: Medtronic Vascular Inc

A stent-graft delivery system includes an elongate shaft, a tip capture spindle disposed over the shaft, and a distal tip assembly coupled to the distal end of the shaft. At least one component of the delivery system constrains a stent of the stent-graft engaged with the tip capture spindle during delivery and partial-deployment of the stent-graft, and the at least one component is in a threaded relationship with the distal tip assembly. To fully deploy the stent-graft, the elongate shaft, having the distal tip assembly coupled thereto, is rotated to result in longitudinal movement of the at least one component and thereby release the stent from the tip capture spindle. The at least one component that longitudinally moves to fully deploy the stent-graft may be the tip capture spindle and/or a relatively short sleeve that extends over the tip capture spindle to the distal tip assembly.

Подробнее
Номер записи: 61
24-10-2013 дата публикации

Introducer assembly

Номер: US20130282100A1
Автор: Anders Ginge Jensen
Принадлежит: Cook Medical Technologies LLC

An introducer assembly ( 10 ) includes a proximal sheath segment ( 12 ) and a distal sheath segment ( 14 ). The distal sheath segment ( 14 ) is attached to a dilator tip ( 18 ) and is movable with the dilator tip ( 18 ). A guide wire catheter ( 20 ) is coupled to the dilator tip ( 18 ) and thus to the distal sheath segment ( 14 ). A carrier catheter ( 24 ) is located concentrically on the guide wire catheter ( 20 ) and carries a medical device such as a stent ( 28 ). The medical device ( 28 ) is deployed by moving the distal sheath segment ( 14 ) in a proximal direction and such that the medical device ( 28 ) is deployed from its distal end ( 32 ) first.

Подробнее
Номер записи: 62
24-10-2013 дата публикации

Method for forming a stent

Номер: US20130282107A1
Автор: Matthew Baldwin, Richard Bliss
Принадлежит: Medtronic Vascular Inc

A method of forming a stent includes forming a wave form from a formable material. The wave form includes a plurality of substantially straight portions and a plurality of curved portions, each curved portion connecting adjacent substantially straight portions. The method includes wrapping the wave form around a mandrel at an angle to form a helical coil comprising a plurality of turns, connecting a first curved portion of a first turn to an adjacent second curved portion of a second turn at a position along the wave form to define an end of the stent, and removing excess material from an end of the wave form extending past the first curved portion while smoothing the end of the stent.

Подробнее
Номер записи: 63
31-10-2013 дата публикации

Apparatus and methods for filling a drug eluting medical device via capillary action

Номер: US20130284311A1
Автор: Abby SCHLICHTING, James Mitchell, Jose Traina, Justin Peterson, Nate GLUCKLICH, Rajen KUMAR
Принадлежит: Medtronic Vascular Inc

Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.

Подробнее
Номер записи: 64
31-10-2013 дата публикации

Bioabsorbable Polymeric Compositions and Medical Devices

Номер: US20130289220A1
Автор: Robert J. Cottone
Принадлежит: Orbus Medical Technologies Inc

The present invention comprises a stent comprising a blend formed from a polymer. The polymer comprises poly-L-lactide, poly-D-lactide or mixtures thereof and a copolymer moiety comprising poly-L-lactide or poly-D-lactide linked with ε-caprolactone or trimethylcarbonate. The poly-L-lactide or poly-D-lactide sequence in the copolymer moiety is random with respect to the distribution of ε-caprolactone or trimethylcarbonate and the copolymer moiety molecular weight ranges from about 1.2 IV to about 4.8 IV. The meandering elements may be stretched to a modulus ranging from about 250000 PSI to about 550,000 PSI. One, two, three, n or all segments of the meandering element may have a decreased cross-sectional area and may have a wide-angle X-ray scattering (WAXS) 2θ values of ranging from about 1 to about 35 after stretching. The crystal properties of the bioabsorbable polymers may change during crimping and/or expansion allowing for improved mechanical properties such as tensile strength and slower degradation kinetics.

Подробнее
Номер записи: 65
31-10-2013 дата публикации

Stent and other object removal from a body

Номер: US20130289694A1
Автор: Paul Sherburne
Принадлежит: Individual

This disclosure contains methods, devices, and systems for object removal from a body, including removal of a stent from a body. Some methods of the present disclosure include inflating a balloon on a catheter, engaging a stent with a socket defined by a surface of the balloon, the surface inwardly sloped toward a lumen of the catheter, and retracting a portion of the stent through the socket and into the lumen. The present disclosure also includes methods for making a catheter, including forming a balloon, inverting a portion of the balloon, and attaching the balloon to a catheter such that a surface of the balloon defines a socket that is inwardly sloped toward a lumen of the catheter.

Подробнее
Номер записи: 66
31-10-2013 дата публикации

Stent-graft prosthesis for placement in the abdominal aorta

Номер: US20130289702A1
Автор: Emilie Simmons, Kieran Coghlan, Meghan Pearson
Принадлежит: Medtronic Vascular Inc

A self-expanding main vessel stent-graft includes a trunk portion configured for placement within the abdominal aorta and a bifurcated portion configured for placement above the aortic bifurcation of the common iliac arteries. The trunk portion includes a proximal end section having an anchor stent and a seal stent that accommodates a scallop or open-top fenestration; a suprarenal body section having at least one stent of variable stiffness to accommodate branch vessel prosthesis deployed alongside the main vessel stent-graft; a branch connection section having opposing couplings for connecting the main vessel stent-graft to branch vessel prostheses deployed within the renal arteries; an infrarenal body section having at least one stent of uniform stiffness; and a transition section for transitioning into the bifurcated portion. The main vessel stent-graft is configured to treat short-neck infrarenal, juxtarenal, and/or suprarenal aneurysms in a wide range of patient anatomies.

Подробнее
Номер записи: 67
14-11-2013 дата публикации

Stent graft

Номер: US20130304194A1
Автор: Milisav Obradovic, Rainer Bregulla
Принадлежит: Abbott Laboratories Vascular Enterprises Ltd

A stent-graft including an inner stent having a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns is described. The wall structure of the inner stent has a predetermined length. An outer stent is coaxially arranged around the inner stent and has a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns. The wall structure of the outer stent has a predetermined length and a flexible stretchable material layer arranged between the inner stent and the outer stent. The wall structure of the inner stent has a design differing from the design of the wall structure of the outer stent and the length of the inner stent is equal to the length of the outer stent.

Подробнее
Номер записи: 68
28-11-2013 дата публикации

Stent Designs With Angled Connectors

Номер: US20130317597A1
Автор: Boris Anukhin, Hao-Ming Hsiao, Keif Fitzgerald
Принадлежит: ABBOTT LABORATORIES

Stent including a plurality of radially-expandable rings disposed adjacent one another along a longitudinal axis to define a tubular member having a proximal end portion, a distal end portion and an intermediate portion, each of the radially-expandable rings including a plurality of strut members defining a series of crowns proximate opposite ends thereof. The stent includes a number of first interconnection members, each first interconnection member extending at an angle relative to the longitudinal axis between a crown of a first radially-expandable ring and a crown of a second radially-expandable ring. The stent includes a number of second interconnection members, each second interconnection member extending at an angle relative to the longitudinal axis between a crown of the second radially-expandable ring and a crown of a third radially-expandable ring. The number of first interconnection members is different than the number of second interconnection members.

Подробнее
Номер записи: 69
05-12-2013 дата публикации

Percutaneous implant extraction device

Номер: US20130325098A1
Автор: Pranav Desai, Rajesh Khanna
Принадлежит: Edwards Lifesciences Corp

A minimally invasive catheter system and method for extraction of a shape memory device such as a nitinol stent, from inside a tubular organ, is provided. The catheter system comprises a multi-lumen tube with at least one expandable balloon and an extraction device. The multi-lumen tube has multiple ports, which are used for injecting fluid inside the tubular organ and the expandable balloon, and inserting the extraction device. The catheter system is inserted inside the lumen of the tubular organ percutaneously. A cold fluid is injected into the expandable balloon and the lumen of the tubular organ. This cold fluid converts the shape memory device from an expanded state to a collapsed state. The shape memory device in the collapsed state is then removed with the help of the extraction device.

Подробнее
Номер записи: 70
05-12-2013 дата публикации

Absorbable Blood Vessel Stent

Номер: US20130325102A1
Автор: Chaohua XIN, Deyuan Zhang, Yongsheng Wang
Принадлежит: Lifetech Scientific Shenzhen Co Ltd

An absorbable blood vessel stent ( 100 ) has a near end and a far end. A tubular patterned structure is formed between the near end and the far end. The patterned structure comprises a plurality of support bars and connection bars ( 2, 3 ). The support bar or the connection bar ( 2, 3 ) comprises a straight line section, a U-shaped section, or an S-shaped section, and at least one through groove or through hole ( 5, 6 ) is provided on at least one support bar. Because of the special structure of the blood vessel stent ( 100 ), the performance of an iron blood vessel stent can be improved, and blood vessel stents made of other absorbable materials can be decomposed more rapidly.

Подробнее
Номер записи: 71
05-12-2013 дата публикации

Stents With Radiopaque Markers

Номер: US20130325106A1
Автор: Patrick P. Wu
Принадлежит: Abbott Cardiovascular Systems Inc

Various embodiments of stents with radiopaque markers arranged in patterns are described herein.

Подробнее
Номер записи: 72
19-12-2013 дата публикации

Compliant implantable medical devices and methods of making same

Номер: US20130334032A1
Автор: Christopher T. Boyle, Julio C. Palmaz
Принадлежит: Advanced Bio Prosthetic Surfaces Ltd

Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.

Подробнее
Номер записи: 73
19-12-2013 дата публикации

Insertion element and insertion device

Номер: US20130338677A1
Автор: Alwin Schwitzer, Amir Fargahl
Принадлежит: BIOTRONIK AG

One embodiment of the invention relates to an insertion element which is designed to cooperate with an insertion device for inserting a medical implant into a human or animal body. The insertion element comprises a sleeve which, in the circumferential direction, has at least two types of circumferential segments of different resilience. The invention further includes an embodiment relating to an insertion device for inserting a medical implant into a human or animal body, comprising at least one outer insertion element wherein the outer insertion element is expand able, at least in regions, when ready for use, wherein the outer insertion element comprises a sleeve which, in the circumferential direction, has at least two types of circumferential segments of different resilience.

Подробнее
Номер записи: 74
19-12-2013 дата публикации

Method of treating vascular bifurcations

Номер: US20130338751A1
Автор: Aaron Kaplan, H. Richard Davis
Принадлежит: Tryton Medical Inc

A prosthesis is disclosed for placement across an ostium opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support at one end, a circumferentially extending link at the other end and at least one frond extending axially therebetween. The circumferential link can comprise a catheter securement portion and a frond engagement portion.

Подробнее
Номер записи: 75
19-12-2013 дата публикации

Helical Stent Having Improved Flexibility and Expandability

Номер: US20130338759A1
Автор: Kenneth E. Perry, Peter K. Kratsch, Thomas O. Bales, Jr.
Принадлежит: CR Bard Inc

A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent winding be interrupted by the maximum possible number of undulations. In one embodiment, each winding includes nineteen undulations around the circumference, bridges are provided every five undulations. According to a second aspect of the invention, uniform opening of the transition zone is achieved by altering the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider.

Подробнее
Номер записи: 76
19-12-2013 дата публикации

Bifurcated endovascular prosthesis having tethered contralateral leg

Номер: US20130338760A1
Автор: Diego Aristizabal, Michael V. Chobotov
Принадлежит: TriVascular Inc

An endovascular delivery system includes a bifurcated and inflatable prosthesis including a main tubular body having an open end and opposed ipsilateral and contralateral legs defining a graft wall therein between. A tether is disposed securably disposed to the contralateral leg, and the contralateral leg is releasably restrained towards the ipsilateral leg tether to prevent undesirable movement of the contralateral leg. A release wire within the endovascular delivery system releasably retains the tether near the ipsilateral leg.

Подробнее
Номер записи: 77
26-12-2013 дата публикации

Radiopaque drug-filled prosthesis and method of making same

Номер: US20130345792A1
Автор: Stephen Pacetti
Принадлежит: Abbott Cardiovascular Systems Inc

An implantable prosthesis can comprise a strut having a lumen, and radiopaque particles within the lumen. The radiopaque particles placed within the lumen can improve visualization of the prosthesis during an implantation procedure. The radiopaque particles can be bonded to each other to prevent the radiopaque particles from escaping out of the strut.

Подробнее
Номер записи: 78
23-01-2014 дата публикации

Methods and apparatus for luminal stenting

Номер: US20140025154A1
Автор: Jessica Liang, Jianlu Ma
Принадлежит: TYCO HEALTHCARE GROUP LP

A stent delivery device includes a first retaining polymer disposed about and retaining a self-expanding stent at a proximal end portion, a second retaining polymer disposed about and retaining the self-expanding stent at a distal end portion, a first resistance member in thermal communication with the first retaining polymer, and a second resistance member in thermal communication with the second retaining polymer. The second retaining polymer and second resistance member are configured to allow release and expansion of the distal end portion of the self-expanding stent without expansion of the proximal end portion of the self-expanding stent.

Подробнее
Номер записи: 79
23-01-2014 дата публикации

Stent with actively varying ring density

Номер: US20140025157A1
Автор: Chad Abunassar
Принадлежит: Abbott Cardiovascular Systems Inc

A stent and method comprising inserting within a vessel an unexpanded stent that includes a first zone comprising a plurality of adjacent ring elements, not less than three in number, that are distributed along the stent with a first spacing, and a second zone comprising a plurality of adjacent ring elements that are distributed along the stent with a second spacing, and expanding the stent to cause the plurality of ring elements in the first zone to redistribute to a third spacing that is smaller than the first spacing and to cause ring elements in the second zone to distribute to a fourth spacing larger than the first spacing.

Подробнее
Номер записи: 80
30-01-2014 дата публикации

Luminal stenting

Номер: US20140031918A1
Автор: Andy Huynh, Gabriel Newell, Lawrence Farhat
Принадлежит: COVIDIEN LP

A stent delivery system, a core assembly, and methods of operating the same are provided. The delivery system can comprise a catheter and the core assembly. The core assembly can comprise a constraining member, protruding member, a core member, and a stent extending along the core member. The tubular constraining member can be spaced apart from the core member and define a capture area. The protruding member can be disposed along the core member at least partially distal of the capture area. The stent can have a first portion disposed within the capture area and a second portion, distal to the first portion, extending across or over an outer surface of the protruding member so that the protruding member and the constraining member cooperate to inhibit expansion of the first portion of the stent.

Подробнее
Номер записи: 81
30-01-2014 дата публикации

Delivery Catheter With Distal Moving Capsule for Transapical Prosthetic Heart Valve Delivery

Номер: US20140031922A1
Автор: Gavin Kenny, John Gallagher, Niall Duffy, Ronan Rogers
Принадлежит: Medtronic Vascular Galway ULC

Heart valve delivery systems and methods of delivering and implanting heart valves using delivery catheters are disclosed. The delivery systems can include a handle assembly with a rotatable control knob and a catheter including an introducer shaft, an intermediate shaft extending from the handle assembly, an inner shaft extending from the handle assembly, and a capsule for containing a prosthesis. The distal end of the capsule can be connected to a distal end of the inner shaft, which can be moved in a distal direction by the rotatable control knob to deploy the prosthesis. By advancing the introducer through the deployed prosthesis and retracting the capsule to mate with the introducer, a smooth profile can be created for retraction of the system through the deployed prosthesis, minimizing hang-ups and snagging.

Подробнее
Номер записи: 82
06-02-2014 дата публикации

BLOOD LOSS CONTROL SYSTEM

Номер: US20140039598A1
Автор: Krolik Jeffrey, Ramee Stephen R., SAMPOGNARO Gregory C., WATANABE Gwendolyn A.
Принадлежит:

Generally described here are systems and methods for controlling bleeding. The systems generally comprise a blood control catheter having an expandable member, an intra-vessel support delivery device, and an intra-vessel support releasably attached to the intra-vessel support delivery device. The system may also include a guidewire. In some variations, the guidewire may be moveable between a tracking configuration and a delivery configuration. 1. A blood control system comprising:a blood control catheter, the blood control catheter comprising an expandable member on a distal end of the blood control catheter;an intra-vessel support delivery catheter sized and configured to be slidably received in the blood control catheter; andan intra-vessel support connected to the intra-vessel support delivery catheter by a retrieval mechanism,wherein the intra-vessel support is moveable between an unexpanded configuration in which the intra-vessel support is positioned inside of the intra-vessel support delivery catheter and an expanded configuration in which the intra-vessel support is delivered from the intra-vessel support delivery catheter, andwherein the retrieval mechanism is configured to retract the intra-vessel support from the expanded configuration to the unexpanded configuration.2. The blood control system of further comprising a guidewire.3. The blood control system of wherein the guidewire comprises a core wire and a flexible sheet attached to the core wire.4. The blood control system of wherein the guidewire further comprises an outer shaft claim 3 , wherein the outer shaft is moveable between an advanced position to cover the flexible sheet and a retracted position to at least partially expose the flexible sheet.5. The blood control system of wherein the intra-vessel support comprises a stent graft.6. The blood control system of wherein the retrieval mechanism comprises a tether. This application claims priority to U.S. Provisional Patent Application Ser. No. 61/ ...

Подробнее
Номер записи: 83
06-02-2014 дата публикации

Bioabsorbable scaffolds made from composites

Номер: US20140039603A1
Автор: Yunbing Wang
Принадлежит: Abbott Cardiovascular Systems Inc

Bioabsorbable scaffolds made at least in part of a poly(L-lactide)-based composite are disclosed. The composite includes poly(4-hydroxybutyrate) or poly(L-lactide)-b-polycaprolactone block copolymer, which increases the fracture toughness or fracture resistance of the scaffold. The composite can further include bioceramic particles, L-lactide monomer, or both dispersed throughout the composite. The bioceramic particles improve the radial strength and stiffness of the scaffold. The L-lactide monomer is used to control the absorption rate of the scaffold.

Подробнее
Номер записи: 84
13-02-2014 дата публикации

Vascular and Bodily Duct Treatment Devices and Methods

Номер: US20140046338A1
Автор: Elliot H. Sanders, Ryan M. Grandfield, Scott D. Wilson
Принадлежит: Concentric Medical Inc

Devices including, but not limited to, a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member to form first and second peripheral rails that vary in width along their lengths.

Подробнее
Номер записи: 85
06-03-2014 дата публикации

Retractable sheath devices, systems, and methods

Номер: US20140066897A1
Автор: Benjamin M. Trapp, Bruce M. Steinhaus, Carey V. Campbell, Edward H. Cully, Mei Li, Michael J. Vonesh, Peter Heicksen, Robert L. Cleek, Thane L. Kranzler, Theresa A. Holland, Thomas G. Triebes
Принадлежит: WL Gore and Associates Inc

The invention is directed to delivery medical devices that enable consistent “on-demand” delivery of therapeutic agents to a vessel. The medical device of the current invention comprises retractable sheath comprising neckable elements. The medical device of the current invention comprises an expandable member, a hydrophilic coating comprising at least one therapeutic agent about the expandable member or structural layer and a retractable outer sheath with a selectively permeable microstructure. The design and methods disclosed herein ensures that therapeutic agent delivery occurs essentially only during retraction of the outer sheath, minimizing coating and/or therapeutic agent loss to the bloodstream and providing controlled delivery to the treatment site.

Подробнее
Номер записи: 86
06-03-2014 дата публикации

Implantable medical devices

Номер: US20140067039A9
Автор: Changdeng Liu, Cheryl J. Campo, Francisca Tan, Patrick T. Mather, Ronald A. Sahatjian
Принадлежит: Boston Scientific Scimed Inc, University of Connecticut

A medical device includes a balloon catheter having an expandable member, e.g., an inflatable balloon, at its distal end and a stent or other endoprosthesis. The stent is, for example, an apertured tubular member formed of a polymer and is assembled about the balloon. The stent has an initial diameter for delivery into the body and can be expanded to a larger diameter by inflating the balloon.

Подробнее
Номер записи: 87
06-03-2014 дата публикации

Trans-Aortic Delivery System With Containment Capsule Centering Device

Номер: US20140067050A1
Автор: Declan Costello, Edmond Sheahan, Gavin Kenny, John Gallagher, Patrick Griffin
Принадлежит: Medtronic Vascular Galway ULC

Heart valve delivery systems and methods of delivering and implanting heart valves using delivery catheters are disclosed. The delivery systems can include a handle assembly which can include a first control mechanism, a second control mechanism, and a decoupling mechanism. The delivery systems can also include a delivery catheter extending from the handle assembly. The delivery catheter can include an outer shaft, which can be controlled by the first control mechanism; a prosthesis containing capsule comprising a proximal capsule portion connected to the outer shaft, and a distal capsule portion releasably coupled to the proximal capsule portion. After deploying a valve prosthesis, the capsule can be closed by activating the decoupling mechanism in the handle to rapidly close the distal and proximal capsule portions together. The delivery system can also include a centering element to guide the distal and proximal capsule portions together.

Подробнее
Номер записи: 88
13-03-2014 дата публикации

Implant deployment apparatus

Номер: US20140074218A1
Автор: Eric W. Leopold, Joseph Trautman, Randy S. Chan, Suresh S. Pai, Thomas G. Breton, Troy Thornton
Принадлежит: WL Gore and Associates Inc

A delivery system including a restraining member maintains a collapsed implant in its collapsed state for delivery through a small passageway to a desired site in a mammalian body. Once the implant is positioned at the desired site, the restraining member is released so that the stent may expand or be expanded to its expanded state. In a preferred embodiment, the restraining member comprises a sheet of material that surrounds at least a portion of the collapsed stent. Portions of the restraining member are releasably coupled to one another with a low profile thread-like member or suture.

Подробнее
Номер записи: 89
20-03-2014 дата публикации

Self-expanding devices and methods therefor

Номер: US20140079755A1
Автор: Anthony J. Abbate, Bin Huang, David C. Gale, Donald J. Eaton, Gail M. Zaler
Принадлежит: Intersect ENT Inc

Described here are delivery devices for delivering one or more implants to the body, and methods of using. The delivery devices may deliver implants to a variety of locations within the body, for a number of different uses. In some variations, the delivery devices have a cannula with one or more curved sections. In some variations, a pusher may be used to release one or more implants from the cannula. In some variations, one or more of the released implants may be a self-expanding device. Methods of delivering implants to one or more sinus cavities are also described here.

Подробнее
Номер записи: 90
20-03-2014 дата публикации

Removable medical device implantable in blood vessels, particularly in the thoracic aorta with aneurysm

Номер: US20140081317A1
Автор: Fabrizio Farneri, Paolo Zanatta
Принадлежит: Fabrizio Farneri, Paolo Zanatta

A removable implantable medical device for the endovascular treatment of aneurysm, particularly of aneurysm of the thoracic aorta, comprising a supporting structure tubular in shape and covered externally by a covering. The supporting structure and the covering define a duct for blood circulation. The device is provided with extraction elements for extracting the duct from the body of the subject in whom it is inserted. The extraction means are associated with the duct and communicate with the outside of the body.

Подробнее
Номер записи: 91
20-03-2014 дата публикации

Stent with retention protrusions formed during crimping

Номер: US20140081373A1
Автор: Bin Huang, Timothy A. Limon, Vincent J. Gueriguian
Принадлежит: Abbott Cardiovascular Systems Inc

Stents that forms protrusions in a crimped state and methods of crimping the stent are disclosed.

Подробнее
Номер записи: 92
20-03-2014 дата публикации

Implant, system formed of an implant and a catheter, and method for producing such a system

Номер: US20140081375A1
Автор: Adrian Blaser, Aldo Jakob, Anita Bardill
Принадлежит: BIOTRONIK AG

An implant ( 10, 10′, 10″, 10 ″), in particular an intraluminal endoprosthesis, with an open-worked, hollow cylindrical and/or hollow conical main structure ( 11 ), wherein the main structure ( 11 ) can adopt a compressed state or an expanded state. To simplify final assembly by the doctor, a first tubular shaft ( 16, 16 ′) is additionally provided, on the outer face of which the main structure ( 11 ) is arranged in the compressed state, at least in portion, wherein the first shaft ( 16, 16 ′) has a first connection portion ( 20, 23 ), with which the first shaft ( 16, 16 ′) can be connected to the inner shaft ( 32, 32′, 32 a, 32 b ) of a catheter ( 30, 30′, 30 ″). A corresponding system formed of an implant of this type and of a catheter ( 30, 30′, 30 ″) and a method for producing such a system.

Подробнее
Номер записи: 93
03-04-2014 дата публикации

Methods of fabricating stents with enhanced fracture toughness

Номер: US20140094899A1
Автор: Bin Huang, David C. Gale, Timothy A. Limon, Vincent A. Gueriguian
Принадлежит: Abbott Cardiovascular Systems Inc

Stents and methods of manufacturing a stents with enhanced fracture toughness are disclosed.

Подробнее
Номер записи: 94
06-01-2022 дата публикации

STAGED DEPLOYMENT OF EXPANDABLE IMPLANT

Номер: US20220000644A1
Автор: Byrne Austin A., Norris Patrick M.
Принадлежит:

An endoprosthesis delivery system includes an expandable endoprosthesis including a side branch portal, a first primary sleeve releasably constraining a proximal portion of the expandable endoprosthesis to a collapsed configuration, a second primary sleeve in parallel with the first primary sleeve, the second primary sleeve releasably constraining a distal portion of the expandable endoprosthesis to the collapsed configuration, and a secondary sleeve within the first primary sleeve. Upon release of the first primary sleeve, the secondary sleeve releasably constrains the proximal portion of the expandable endoprosthesis to a partially expanded configuration allowing access to the side branch portal via the partially expanded proximal portion of the expandable endoprosthesis. 1. An endoprosthesis delivery system comprising:an expandable endoprosthesis including a side branch portal;a first primary sleeve releasably constraining at least a first portion of the expandable endoprosthesis toward a collapsed configuration;a secondary sleeve overlapping with the first primary sleeve, wherein upon release of the first primary sleeve, the secondary sleeve releasably constrains a second portion of the expandable endoprosthesis to a partially expanded configuration allowing access to the side branch portal via the partially expanded portion of the expandable endoprosthesis;a side branch component configured for delivery through the side branch portal via the partially expanded portion of the expandable endoprosthesis.2. The endoprosthesis delivery system of claim 1 , wherein:the expandable endoprosthesis defines a central lumen, further comprising a first guidewire extended through the central lumen; anda second guidewire extended through the partially expanded portion of the endoprosthesis and the side branch component.3. The endoprosthesis delivery system of claim 1 , further comprising a second primary sleeve in parallel with the first primary sleeve claim 1 , the second ...

Подробнее
Номер записи: 95
06-01-2022 дата публикации

STENT DELIVERY APPARATUS

Номер: US20220000647A1
Автор: KIRINO Yuko
Принадлежит: OLYMPUS CORPORATION

A stent delivery apparatus includes a guide catheter through which a guide wire is inserted, a pusher catheter including a first lumen through which the guide catheter is inserted and a first communication hole communicating with the first lumen, a stent including a second lumen through which the guide catheter is inserted and a second communication hole communicating with the second lumen and disposed on a distal side of the pusher catheter, and a thread that connects the stent and the pusher catheter to each other in a releasable manner, wherein the thread has a first end portion that through the first communication hole, an intermediate portion that through the second communication hole, and a second end portion that extends around a part of the guide catheter located between a proximal end of the stent and a distal end of the pusher catheter. 1. A stent delivery apparatus comprising:a guide catheter through which a guide wire is insertable;a pusher catheter including a first lumen through which the guide catheter is inserted and a first communication hole communicating with the first lumen;a stent including a second lumen through which the guide catheter is inserted and a second communication hole communicating with the second lumen and disposed on a distal side of the pusher catheter; anda thread that connects the stent and the pusher catheter to each other in a releasable manner,wherein the thread hasa first end portion that is supported by the pusher catheter through the first communication hole,an intermediate portion that extends to a space between the stent and the pusher catheter through the second communication hole, anda second end portion that extends around a part of the guide catheter located between a proximal end of the stent and a distal end of the pusher catheter.2. The stent delivery apparatus according to claim 1 ,wherein the intermediate portion hasa first intermediate portion that enters the second lumen through a proximal end opening of the ...

Подробнее
Номер записи: 96
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

Номер: US20210000583A1
Автор: Jen Jimmy, Lee Pin-Hsuan, Palermo Thomas J.
Принадлежит:

A vascular graft deployment tool may include a grip, an elongated mandrel positioned distal of the grip, a vascular graft, at least part of which is disposed coaxially about the mandrel, a sheath assembly including a distal sheath portion and a proximal sheath potion, wherein the distal sheath portion and the proximal sheath portion are configured to constrain the vascular graft against the mandrel in an insertion diameter and a actuator that is moveable relative to the grip and engages the sheath assembly, wherein operation of the actuator causes at least one of the distal sheath portion and the proximal sheath portion to separate longitudinally to free at least a portion of the vascular graft. Further, a vascular graft is expandable from an insertion state to a deployed state and at least two suture cuffs are located between opposed ends of the vascular graft. 1. A vascular graft deployment tool , comprising:a grip;an elongated mandrel positioned distal of the grip;a vascular graft, at least part of which is disposed coaxially about the mandrel;a sheath assembly including a distal sheath portion and a proximal sheath potion, wherein the distal sheath portion and the proximal sheath portion are configured to constrain the vascular graft against the mandrel in an insertion diameter; andan actuator that is moveable relative to the grip and engages the sheath assembly, wherein operation of the actuator causes at least one of the distal sheath portion and the proximal sheath portion to separate longitudinally to free at least a portion of the vascular graft.2. The vascular graft deployment tool of claim 1 , wherein the sheath assembly further comprises a center section connecting the distal sheath portion and the proximal sheath portion claim 1 , wherein the center section comprises at least two ribbons and wherein the actuator engages the ribbons.3. The vascular graft deployment tool of claim 2 , further comprising a plurality of rollers coupled to the actuator claim ...

Подробнее
Номер записи: 97
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

Номер: US20210000584A1
Автор: Jen Jimmy, Lee Pin-Hsuan, Palermo Thomas J.
Принадлежит:

A vascular graft may be configured to transition from an insertion state to a deployed state. The graft comprising a proximal end having an expandable mesh, a distal end having an expandable mesh, and at least one suture cuff positioned between the proximal and distal ends, wherein each suture cuff comprises additional material relative to the proximal and distal ends that is configured to form when the vascular graft transitions from the insertion state to the deployed state. 1. A vascular graft configured to transition from an insertion state to a deployed state , comprising a proximal end having an expandable mesh , a distal end having an expandable mesh , and at least one suture cuff positioned between the proximal and distal ends , wherein each suture cuff comprises additional material relative to the proximal and distal ends that is configured to form when the vascular graft transitions from the insertion state to the deployed state.2. The vascular graft of claim 1 , wherein the transition from the insertion state to the deployed state is a self-expanding expansion.3. The vascular graft of claim 1 , wherein at least two suture cuffs are positioned relatively closer to each other to the proximal and distal ends of the vascular graft.4. The vascular graft of claim 1 , wherein at least one of the suture cuffs is formed at least in part by compression of the vascular graft substantially in the longitudinal direction.5. The vascular graft of claim 4 , wherein the at least one of the suture cuffs comprises at least two longitudinal slits defined therethrough and wherein expansion of the vascular graft is configured to cause portions of the vascular graft located circumferentially between circumferentially-adjacent said longitudinal slits to form lobes extending radially outward from the vascular graft.6. A method for implanting a vascular graft within a patient claim 4 , comprising providing the vascular graft having a proximal end with an expandable mesh claim 4 , ...

Подробнее
Номер записи: 98
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

Номер: US20210000585A1
Автор: Jen Jimmy, Lee Pin-Hsuan, Palermo Thomas J.
Принадлежит:

A vascular graft deployment tool may include a grip, an elongated mandrel positioned distal of the grip, a vascular graft, at least part of which is disposed coaxially about the mandrel, a sheath configured to be withdrawn proximally that constrains the vascular graft against the mandrel in an insertion diameter and an actuator that is moveable relative to the grip and engages the sheath assembly. A first operation of the actuator causing withdrawal of the sheath to free at least a distal portion of the vascular graft and a repeated operation of the actuator causing further withdrawal of the sheath to free a proximal portion of the vascular graft. 1. A method for implanting a vascular graft in a blood vessel of a patient , comprising:providing a vascular graft deployment tool including a grip, an elongated mandrel positioned distal of the grip, the vascular graft, at least part of which is disposed coaxially about the mandrel, a sheath configured to be withdrawn proximally that constrains the vascular graft against the mandrel in an insertion diameter and an actuator that is moveable relative to the grip and engages the sheath assembly;positioning at least a distal portion of the vascular graft within a lumen of the blood vessel of the patient;operating the actuator to cause withdrawal of the sheath to free at least a distal portion of the vascular graft;securing at least the distal portion of the vascular graft within the lumen of the blood vessel by expansion of the portion of the vascular graft from the insertion diameter; andoperating the actuator to cause further withdrawal of the sheath to free a proximal portion of the vascular graft to secure the vascular graft to a branch graft.2. The method of claim 1 , wherein the vascular graft deployment tool further comprises a dilator tip at the distal end of the mandrel having a lumen extending substantially longitudinally therethrough and a needle with a lumen defined therein claim 1 , wherein the needle is disposed ...

Подробнее
Номер записи: 99
07-01-2016 дата публикации

Delivery systems for cardiac valve support devices

Номер: US20160000564A1
Автор: Amit Tubishevitz, Maurice Buchbinder, Remo ALMOG, Shay Dubi
Принадлежит: MVALVE TECHNOLOGIES Ltd

The present device provides a delivery device ( 10 ) suitable for delivering a cardiac valve support device ( 11 ) that comprises at least one support element ( 14, 19 ) and two or more stabilizing elements ( 16 ), wherein said delivery device comprises a proximal handle and an outer conduit ( 12 ) that is continuous therewith, and wherein said delivery device further comprises various means for controlling the release of said support element from the open distal end of said outer conduit and means for retaining the support device stabilizing elements in a closed conformation, and independently controlling their release.

Подробнее
Номер записи: 100