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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

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Мониторинг СМИ

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

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Применить Всего найдено 7437. Отображено 100.

12-01-2012 дата публикации

Catheter guiding tool

Номер: US20120010469A1

Автор: Jean Michel Boyer

Принадлежит: SOMEDICS RD

A catheter guiding tool includes a handle of the guiding tool, the handle including an inner cavity extending between a proximal end and a distal end of the handle; a flexible wire guide; a cover closing the proximal end of the handle, wherein the proximal end of the wire guide forms a coil spring, the coil spring being positioned in the inner cavity of the handle and held in rotation by the cover, the cover being solidary in rotation of the handle.

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Номер записи: 1

08-03-2012 дата публикации

Apparatus and method for airway registration and navigation

Номер: US20120059248A1

Автор: Mark Hunter, Troy Holsing

Принадлежит: Veran Medical Technologies Inc

A surgical instrument navigation system is provided that visually simulates a virtual volumetric scene of a body cavity of a patient from a point of view of a surgical instrument residing in the cavity of the patient. The surgical instrument navigation system includes: a surgical instrument; an imaging device which is operable to capture scan data representative of an internal region of interest within a given patient; a tracking subsystem that employs electro-magnetic sensing to capture in real-time position data indicative of the position of the surgical instrument; a data processor which is operable to render a volumetric, perspective image of the internal region of interest from a point of view of the surgical instrument; and a display which is operable to display the volumetric perspective image of the patient.

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Номер записи: 2

15-03-2012 дата публикации

Color coded guide wire and methods of making same

Номер: US20120065622A1

Автор: Arthur R. Tyre, Carl P. Frick, David H. Burkett, Emmanuel C. Biagtan, Jessica M. Saenz, John A. Simpson, John J. Nelson, III, Michelle E. Alexander, Pablito Buan, Robert J. Peralta, Travis R. Yribarren, Wayne E. Cornish

Принадлежит: ABBOTT LABORATORIES

A color coding is applied to medical guide wires by coloring portions of the guide wire to distinguish similar guide wires and guide wire portions from a particular manufacturer. The metallic elongate core can be colored using various methods such as electrochemical processes, sputtering, electroplating, and laser inducing microstructures to alter the surface characteristics of the elongate metallic core. Alternatively, the outer layer of the guide wire can be color coded by using non-standard colors or by introducing a colored band on the guide wire.

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Номер записи: 3

15-03-2012 дата публикации

Guide wire with soldered multilayer coil member

Номер: US20120065623A1

Автор: David H. Burkett, John J. Nelson, III, Wayne E. Cornish

Принадлежит: Abbott Cardiovascular Systems Inc

A guide wire includes an elongate core section and a flexible member disposed on the distal end, the flexible member including a first wire wound into an inner helical coil in a first direction and a second wire wound into an outer helical coil wrapped about the first helical coil in the opposite direction. The two combined helical coils add stiffness and torque transmission to the guide wire without sacrificing tactile feedback.

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Номер записи: 4

19-04-2012 дата публикации

Core wire for guide wire and method for manufacturing the same

Номер: US20120094123A1

Автор: Akihisa Furukawa, Kiyohito Ishida, Kiyonori Takezawa, Kiyoshi Yamauchi, Mitsuya Takezawa, Takeshi Ishikawa

Принадлежит: CLINO Ltd, Piolax Medical Devices Inc

Provided is a core wire for guide wire in which high rigidity can be attained even with a fine wire diameter so that pushability is improved while the core wire is prevented from fatigue deformation, and a method for manufacturing the core wire. This core wire 15 for guide wire is made of a Ti—Ni based alloy and has a wire diameter not larger than 0.5 mm and a Young's modulus not lower than 50 GPa. According to the manufacturing method, first, wire drawing is performed on a raw material M 0 so that the raw material M 0 is passed through a wire drawing dice 2 to be drawn to a certain length while the wire diameter of the core wire is reduced. Thus, a primary processed material M 1 is formed. After that, the primary processed material M 1 is hammered and drawn by swaging dices 5 and 5 so that a secondary processed material M 2 is formed. In this manner, the core wire 15 having a wire diameter not larger than 0.5 mm and a Young's modulus not lower than 50 GPa is manufactured.

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Номер записи: 5

17-05-2012 дата публикации

Neurological apparatus

Номер: US20120123391A1

Автор: Hugo George Derrick, Mathew David Frederick Stratton, Stephen Streatfield Gill

Принадлежит: Renishaw Ireland Ltd

A guide element for insertion into the brain to guide implantable instruments, wherein the guide element comprises an elongate part, the elongate part having a composition of at least 80% tungsten carbide. The guide element may have a coating, such as a biocompatible plastics material which is more resilient than the elongate part.

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Номер записи: 6

19-07-2012 дата публикации

Catheter access and control device and method of using same

Номер: US20120184896A1

Автор: Mark Henry DeLegge, Rebecca Copenhaver Delegge

Принадлежит: EndoChoice Inc

The present application discloses a handle configured to receive a catheter. The handle comprises a port that communicates with a lumen of the catheter and a mechanism is provided that moves the end of the catheter for positioning. The guide wire traverses a reservoir located in the handle. In particular, the handle comprises an enclosure with a conduit and a reservoir, where the conduit extends through the enclosure from the left side to the right side and the reservoir space has a curved or concave base. The bottom side and top side of the handle converge into a tapered point on the left side.

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Номер записи: 7

09-08-2012 дата публикации

Quick release mechanism for medical device deployment

Номер: US20120203322A1

Автор: Robert M. Eells

Принадлежит: Cook Medical Technologies LLC

A medical device assembly having a quick release mechanism reversibly engaged with a medical device and a method used by an operator to deploy said medical device at a targeted site in a body vessel is provided. The quick release mechanism generally comprises an inner core wire and an outer coil having a proximal section and distal section. The inner core wire and the outer coil are coupled together proximate to their distal end with the outer coil having an enlarged overall thickness in its distal section. The medical device has an opening sized to receive and to detachably engage the distal section of the outer coil. The quick release mechanism having an engaged position in which the outer coil is securely holds the medical device and a detached position in which the outer coil and medical device are substantially unengaged. The operator causes the quick release mechanism to move from the engaged position to the detached position by moving the inner core wire and outer coil in opposite directions.

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Номер записи: 8

11-10-2012 дата публикации

Apparatus and methods to create and maintain an intra-atrial pressure relief opening

Номер: US20120259263A1

Автор: David Celermajer, Edward McNamara, Hiroatsu Sugimoto, Michael W. Sutherland

Принадлежит: DC Devices Inc

The present disclosure relates to a method and a device for treating heart failure by normalizing elevated blood pressure in the left and right atria of a heart of a mammal The present disclosure includes methods for creating and maintaining an opening in the atrial septum. Tools for making an opening and enlarging the opening are also disclosed. Use of the techniques and tools described herein prolongs the patency of an intra-atrial pressure relief opening.

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Номер записи: 9

03-01-2013 дата публикации

Guidewire

Номер: US20130006221A1

Автор: Tadahiro Koike

Принадлежит: Asahi Intecc Co Ltd

A guidewire includes a core shaft, a coil body that covers the core shaft, and a joining portion formed of metal solder that couples the core shaft and the coil body. The coil body includes a tungsten wire and a noble metal plating layer that covers at least a portion of a surface of the tungsten wire. A surface of the noble metal plating layer has a first uneven shape, including at least one recess and at least one protrusion.

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Номер записи: 10

11-04-2013 дата публикации

Vascular delivery methods

Номер: US20130090626A1

Автор: Robert Feldtman

Принадлежит: Individual

A vascular method is disclosed comprising introducing a first flexible wire into a blood vessel, wherein the blood vessel has a first vessel end and a second vessel end and wherein the first flexible wire has a first end and a second end, sliding an angiotip along the first flexible wire in a direction away from the first end of the wire and toward the second end of the wire, frictionally engaging the first flexible wire with the angiotip, and pulling the first flexible wire through the blood vessel in the direction of the second vessel end, wherein the pulling of the first flexible wire pulls the angiotip through the blood vessel in the direction of the second vessel end.

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Номер записи: 11

25-04-2013 дата публикации

Torque For Incrementally Advancing a Catheter During Right Heart Catheterization

Номер: US20130102888A1

Автор: Ahmad Mohamad Slim

Принадлежит: Individual

A torque for controlling the advancement and rotation of a right heart catheter during a right heart catheterization procedure. The torque has a casing with a cavity for receiving a core, and a lumen for receiving the right heart catheter. A gripper is disposed within the core to tightly grip the right heart catheter. The core has a plurality of threads that engage teeth of a handle. The handle is attached to the casing at an axis and rotates about the axis during use. The core has an elongated spiraled recess which is engaged by a guide pin attached to the casing and extending within the cavity. When the handle is rotated, the teeth of the handle engage the threads to rotate the core, and the guide pin engages the elongated spiraled recess to move the core laterally, thereby advancing and rotating the right heart catheter.

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Номер записи: 12

09-05-2013 дата публикации

Mri-guided devices and mri-guided interventional systems that can track and generate dynamic visualizations of the devices in near real time

Номер: US20130116543A1

Автор: Kamal Vij, Kimble L. Jenkins, Peter Piferi

Принадлежит: MRI Interventions Inc

An MRI-guided medical device includes an elongated sheath, an elongated dilator, and an elongated needle. The sheath has a distal end, an opposite proximal end, and a central lumen extending between the proximal and distal ends. The sheath comprises MRI-compatible material and includes a tracking member located adjacent to the sheath distal end that is visible in an MRI image. The dilator comprises MRI-compatible material and is movably disposed within the sheath lumen. A distal end of the dilator is configured to extend outwardly from the sheath distal end and dilator includes at least one tracking member that is visible in an MRI image. The needle is movably disposed within the dilator lumen and is movable between stored and operative positions relative to the dilator. An RF shield may be coaxially disposed within the elongated sheath so as to surround a portion of the sheath central lumen.

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Номер записи: 13

23-05-2013 дата публикации

Guidewire with adjustable stiffness

Номер: US20130131644A1

Автор: Colin Donohue, Henry Lupton, Ivan Mooney, Juan Carlos Parodi, Peter W.J. Hinchliffe

Принадлежит: Cardioguidance Biomedical LLC

A medical guidewire system including an inner member having an outer diameter and an outer member having an inner diameter, the inner diameter being larger than the outer diameter. The inner and outer members are relatively slidable to adjust a stiffness of the guidewire system. The lumen of the outer member forms a gap for fluid flow therethrough. A connector to the inner member and a fluid infusion channel communicating with the gap for injection of fluid through the gap to exit a distal portion of the outer member.

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Номер записи: 14

04-07-2013 дата публикации

System and method for delivering and deploying an occluding device within a vessel

Номер: US20130172925A1

Автор: Aaron Lee Berez, Adrian Garcia, Quang Quoc Tran, Ting Tina Ye

Принадлежит: TYCO HEALTHCARE GROUP LP

A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned. The elongated flexible member may be a integral portion formed thereof that form a coil portion.

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Номер записи: 15

25-07-2013 дата публикации

Guidewire positioning tool

Номер: US20130190731A1

Автор: J. Michael Cude

Принадлежит: Coeur Inc

A guidewire positioning tool includes a sheath having a body bore extending axially through a length of the sheath with a radially extending body slot configured to receive a guidewire. A collet portion extends laterally from the sheath and has collet arms and interstitial spaces with a collet bore extending therethrough. The collet bore has a collet slot extending radially from the collet bore configured to receive a guidewire. The collet arms have threads located on the exterior of the collet arms. A clamp nut is positioned over the collet portion and configured to threadably engage the threads. A retainer is rotatably attached to an end of the sheath opposite from the collet portion. The retainer has a retainer bore extending axially therethrough. The retainer has a retainer slot extending radially from the retainer bore configured to receive a guidewire.

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Номер записи: 16

22-08-2013 дата публикации

Guidewire with internal pressure sensor

Номер: US20130218032A1

Автор: Claude Belleville

Принадлежит: Opsens Inc

The present document describes a pressure guidewire comprising: a shaft tube with a proximal section; a middle section extending from the proximal section of the shaft tube, the middle section having greater flexibility than the proximal section; an inner hypotube installed substantially within the middle section for optimal mechanical properties; a pressure sensor with a communication means routed through the middle section and the proximal section; and a sensor housing for receiving the pressure sensor. There are also described methods for joining the inner hypotube to the shaft tube.

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Номер записи: 17

29-08-2013 дата публикации

Intravascular guidewire

Номер: US20130226033A1

Автор: Alan Eskuri

Принадлежит: TYCO HEALTHCARE GROUP LP

A guidewire for use in a medical procedure includes an elongate guide member dimensioned for insertion within a body vessel of a subject. The guide member defines a longitudinal axis and has trailing and leading end segments. The leading end segment has a reduced cross-sectional dimension relative to a cross-sectional dimension of the trailing end segment. The leading end segment includes a first core element comprising a first material and a second core element comprising a second material different from the first material and being forward of the first core element. The first material of the first core element has greater rigidity than the rigidity of the second material of the second core element, to thereby facilitate advancement of, and application of torque to, the leading end segment while minimizing deformation.

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Номер записи: 18

26-09-2013 дата публикации

Handle for steerable catheter

Номер: US20130253469A1

Автор: David Freed

Принадлежит: Boston Scientific Scimed Inc

A handle for controlling a steerable catheter can be aligned so that the direction of movement of the catheter is aligned with the orientation of an image on a monitor. In one embodiment, the handle is axially symmetric, allowing a physician to grasp it such that the movement of the catheter is aligned with an image displayed. In another embodiment, the handle is a grip that is rotatable with respect to the controls of a steerable catheter in order to align the movement with the image displayed.

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Номер записи: 19

24-10-2013 дата публикации

Wireguide set for changing access sites

Номер: US20130282036A1

Автор: Jeremy R. Schaeffer

Принадлежит: Cook Medical Technologies LLC

A wireguide set is provided for changing access between two access sites. The wireguide set includes a wireguide and a catheter. The wireguide passes through one access site while the catheter passes through another access site. The wireguide and catheter are connectable to each other inside the patient's body. Once connected, the catheter can pull the wireguide through the access site of the catheter. The wireguide set may be used to treat peripheral arterial disease occlusions in the lower leg where it is difficult or impossible to gain access through the occlusion from a femoral site.

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Номер записи: 20

31-10-2013 дата публикации

Rod shaped body and medical device

Номер: US20130289533A1

Автор: Joachim Georg Pfeffer, Klaus Duering

Принадлежит: MaRVis Tech GmbH

The present invention relates to a medical device. In particular, the present invention concerns a medical device which can be detected by means of magnetic resonance imaging (MRI).

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Номер записи: 21

14-11-2013 дата публикации

Torquer device and methods related thereto

Номер: US20130303330A1

Автор: Brian Stevens, Eric Joseph Dille, Gregg Stuart Sutton

Принадлежит: Merit Medical Systems Inc

Torque devices are disclosed for controlling insertion of medical devices into a lumen of a patient. The torque devices allow for modulation of the speed of rotation of the medical devices. Methods related to the torque devices are also disclosed.

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Номер записи: 22

05-12-2013 дата публикации

Guide wire arrangement, strip arrangement and methods of forming the same

Номер: US20130324863A1

Автор: Daquan Yu, Hanhua Feng, Li Shiah Lim, Muhammad Hamidullah, Rama Krishna Kotlanka, Vaidyanathan Kripesh, Woo Tae Park

Принадлежит: Agency for Science Technology and Research Singapore

A guide wire arrangement, a strip arrangement, a method of forming a guide wire arrangement, and a method of forming a strip arrangement are provided. The guide wire arrangement includes a strip; a sensor being disposed on a first portion of the strip; a chip being disposed next to the sensor on a second portion of the strip, wherein the second portion of the strip is next to the first portion of the strip; wherein the strip is folded at a folding point between the first portion of the strip and the second portion of the strip such that the first portion of the strip and the second portion of the strip form a stack of strip portions.

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Номер записи: 23

23-01-2014 дата публикации

Device and method for capturing guidewires

Номер: US20140025086A1

Автор: Dan Rottenberg, Ron Sacher

Принадлежит: Spectranetics LLC

Device and method for capturing guidewires inside blood vessels. The disclosed device enables retrieval of guidewires that need to be pulled from the body at a different location than the guidewire entering location, such as guidewires that have entered in a retrograde direction.

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Номер записи: 24

06-02-2014 дата публикации

Guidewire

Номер: US20140039350A1

Автор: Christopher Folk

Принадлежит: TYCO HEALTHCARE GROUP LP

A guidewire for use in a medical procedure includes an elongate guide member dimensioned for insertion within a body vessel of a subject. The guide member includes an elongate body segment and a leading tip segment. The elongate body segment defines a longitudinal opening, and the leading tip segment is adapted and dimensioned to articulate relative to the elongate body segment about a single axis. A control element extends through the longitudinal opening of the elongate body segment and is longitudinally movable through manual manipulation of a clinician to cause corresponding articulating movement of the leading tip segment.

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Номер записи: 25

06-02-2014 дата публикации

Guide extension catheters and methods for manufacturing the same

Номер: US20140039461A1

Автор: Huisun Wang, James M. Anderson, Joel M. WasDyke

Принадлежит: Boston Scientific Scimed Inc

Guide extension catheters and methods of manufacturing and using guide extension catheters are disclosed. An example guide extension catheter may include a distal sheath having a proximal opening, a distal opening, and a central lumen extending therebetween. The guide extension catheter may also include a proximal shaft having an outer diameter smaller than an outer diameter of the distal sheath, the proximal shaft including a distal opening. The guide extension catheter may also include a coupling member for securing the distal sheath to the proximal shaft. The coupling member may include a distal portion attached to the distal sheath and a proximal portion disposed within the distal opening of the proximal shaft.

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Номер записи: 26

27-02-2014 дата публикации

Pressure-sensing medical devices and medical device systems

Номер: US20140058275A1

Автор: Daniel J. Gregorich, Michael J. Tierney, Roger W. Mcgowan

Принадлежит: Boston Scientific Scimed Inc

Medical device systems and methods for making and using medical device systems are disclosed. An example medical device system may include a guidewire. A pressure sensor assembly may be disposed within the guidewire. The pressure sensor assembly may include a pressure sensor and a first optical fiber coupled to the pressure sensor. The first optical fiber may have a first outer diameter. A cable may be coupled to the guidewire. The cable may include a second optical fiber. The second optical fiber may have a second outer diameter greater than the first outer diameter.

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Номер записи: 27

06-03-2014 дата публикации

Pressure Sensing Intravascular Devices With Reduced Drift and Associated Systems and Methods

Номер: US20140066790A1

Автор: David H. Burkett, Douglas E. Meyer

Принадлежит: Volcano Corp

Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component positioned within a distal portion of the device. In some instances, a plurality of conductors are electrically coupled to the pressure sensing component and a potting material covers the electrical connections between the plurality of conductors and the pressure sensing component. In some instances, the potting material has a durometer hardness between about 20 Shore A and about 50 Shore A, a moisture absorption rate of about 0% per twenty-four hours, a linear shrinkage of 0%, a coefficient of thermal expansion (m/m/-° C.) of between about 1.0×10 −5 and about 5.0×10 −4 , and a volume resistivity (Ω-cm) between about 6.0×10 13 and about 1.0×10 14 . Methods of making and/or assembling such intravascular devices/systems are also provided.

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Номер записи: 28

13-03-2014 дата публикации

Device for recanalization of vessel occlusions using guide wire and method of use

Номер: US20140074132A1

Автор: Amir Pansky, Gal DEMER, Jacob Richter

Принадлежит: OSCILLON Ltd

An attachment mechanism and method for attaching or coupling a guide wire to a catheter for re-canalization or opening a passage through an occlusion in a blood vessel is provided. The attachment mechanism generates friction forces against the guide wire to couple the guide wire to a catheter, which design permits a greater force to be used on the guide wire during a re-canalization procedure. The invention also encompasses use of the attachment mechanism in conjunction with active catheters, which have vibration-generating means to oscillate the distal end of the catheter or a component in the distal end of the catheter, to add vibration motion, preferably axial vibration motion, to the increased force that may be applied to the guide wire for purposes of penetrating an occlusion. The methods of the invention relate to methods of attaching the guide wire to the catheter and methods of treating a vessel having a partial or total occlusion.

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Номер записи: 29

20-03-2014 дата публикации

Rotational atherectomy device with a system of eccentric abrading heads

Номер: US20140081298A1

Автор: Matthew David Cambronne

Принадлежит: Cardiovascular Systems Inc

The invention provides a rotational atherectomy device having, in various embodiments, a flexible, elongated, rotatable drive shaft with a system of eccentric abrading heads attached thereto. At least part of the eccentric enlarged abrading heads in the system have a tissue removing surface—the abrading heads may be at least partially hollow. Preferably the abrading heads have centers of mass spaced radially from the rotational axis of the drive shaft, facilitating the ability of the system of abrading heads to work together to open the stenotic lesion to a diameter larger than the outer resting diameter of the abrading heads when operated at high speeds. Therefore, certain embodiments comprise a system having unbalanced centers of mass to not only stimulate greater rotational diameters but also arranged in a manner whereby a debris-removing augering effect occurs. Other embodiments may comprise systems having abrading heads with balanced centers of mass.

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Номер записи: 30

27-03-2014 дата публикации

Intra-luminal access apparatus and methods of using the same

Номер: US20140088560A1

Автор: Gary S. Dorfman, Robert J. Min

Принадлежит: CORNELL UNIVERSITY

Apparatus and methods providing intra-luminal access and, in particular, to needle, catheter, and guidewire structures and methods of using the same to access a vascular or other body tissue lumen.

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Номер записи: 31

03-04-2014 дата публикации

Infusion flow guidewire system

Номер: US20140094835A1

Автор: Douglas J. Ball, Eric J. Thor, Hieu V. Le, John L. Teschendorf, John Riles, Michael J. Bonnette

Принадлежит: Medrad Inc

An infusion flow guidewire and a system including an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip having a closed distal end, a coil, a core wire and at least one distally located rearwardly directed jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided in the system for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.

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Номер записи: 32

01-01-2015 дата публикации

Twisted ribbon wire guidewire coil

Номер: US20150000100A1

Автор: Daniel G. Brown

Принадлежит: Abbott Cardiovascular Systems Inc

A medical guidewire having distal tip coil that includes a twisted ribbon wire construction. The distal tip coil is mounted to the distal end of the distal core section of the guidewire. The coil is made from a flat ribbon wire with a polygonal, preferably rectangular, cross-section that is twisted along the length of the wire. The twisted, flat ribbon wire creates a tip coil that has a roughened, undulating surface at the outer circumference that, whether coated or bare, is perceptible to the physician or cardiologist when pushing or torquing the guidewire in an interventional procedure.

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Номер записи: 33

07-01-2021 дата публикации

TORQUE ACCESSORY FOR SUPPORT CATHETER

Номер: US20210000493A1

Автор: BADADAMATH SHARATH, DHANOTIYA Aditya

Принадлежит: BOSTON SCIENTIFIC LIMITED

A guidewire control assembly may hold a guidewire stationary while allowing for rotation of a catheter shaft disposed over the guidewire. The guidewire control assembly may include a housing with a passage for receiving the guidewire, a clutch mechanism connected to the housing and actuatable to selectively grip and release the guidewire disposed in the passage, and an interface rotatably connected to the housing. The interface may receive the catheter hub attached to the catheter shaft and may allow for torquing the catheter hub. 1. A guidewire control device comprising:a housing having a passage for receiving a guidewire;a clutch connected to the housing and actuatable to selectively grip and release the guidewire disposed in the passage; andan interface rotatably connected to the housing, the interface configured to receive a catheter hub and torque the catheter hub.2. The guidewire control device of claim 1 , wherein the clutch incudes an engagement member configured to grip the guidewire and prevent rotation of the guidewire while the interface rotates.3. The guidewire control device of claim 2 , wherein the engagement member includes first and second opposing pads configured to be moved toward each other and into contact with the guidewire.4. The guidewire control device of claim 3 , wherein the clutch further includes first and second opposing grips attached to the first and second opposing pads claim 3 , respectively claim 3 , the first and second opposing grips configured to move between a release configuration and a gripping configuration claim 3 , wherein when in the release configuration claim 3 , the first and second opposing grips extend radially outward from an outer surface of the housing claim 3 , and when in the gripping configuration claim 3 , the first and second opposing grips are disposed radially inward toward the passage.5. The guidewire control device of claim 4 , wherein the first and second opposing grips are biased in the release ...

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Номер записи: 34

04-01-2018 дата публикации

PROXIMAL CONNECTOR FOR GUIDEWIRE ASSEMBLY

Номер: US20180000420A1

Автор: Panday Rajnish, Romanowski Jason, Seretse Amanuel

Принадлежит:

The present disclosure provides an improved guidewire assembly including a sensor disposed on a distal portion thereof and a proximal connector disposed on a proximal portion thereof for electrically coupling the guidewire assembly to an external device. The proximal connector comprises at least one proximal contact and at least one reflowed insulative element disposed adjacent the at least one proximal contact. 1. A guidewire assembly comprising:a guidewire comprising a distal portion and a proximal portion;a sensor disposed at the distal portion of the guidewire; anda proximal connector disposed at the proximal portion of the guidewire, the proximal connector comprising at least one proximal contact and at least one reflowed insulative element disposed adjacent the at least one proximal contact.2. The guidewire assembly of claim 1 , wherein the at least one reflowed insulative element comprises nylon.3. The guidewire assembly of claim 1 , wherein the at least one reflowed insulative element comprises a first insulative element positioned adjacent a distal end of the at least one proximal contact.4. The guidewire assembly of claim 1 , wherein the at least one proximal contact comprises a first proximal contact claim 1 , a second proximal contact claim 1 , and a third proximal contact.5. The guidewire assembly of claim 4 , wherein the at least one reflowed insulative element comprises a first reflowed insulative element claim 4 , a second reflowed insulative element claim 4 , and a third reflowed insulative element.6. The guidewire assembly of claim 1 , further comprising:at least one electrical cable electrically coupling the at least one proximal contact to an external device.7. The guidewire assembly of claim 1 , wherein the proximal connector further comprises an atraumatic proximal tip.8. The guidewire assembly of claim 7 , wherein the atraumatic proximal tip comprises a cured adhesive.9. The guidewire assembly of claim 1 , wherein the sensor comprises a ...

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Номер записи: 35

04-01-2018 дата публикации

ENDOVASCULAR DEVICES AND METHODS FOR EXPLOITING INTRAMURAL SPACE

Номер: US20180000513A1

Автор: Atkinson Robert E., Kugler Chad J., Olson Matthew J.

Принадлежит: Bridgepoint Medical, Inc.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen. 1. A method of bypassing an occlusion in a blood vessel through a subintimal pathway , comprising:advancing a subintimal crossing device through a subintimal space between tissue layers of a vascular wall of the blood vessel adjacent to the occlusion;thereafter, advancing an orienting device into the subintimal space;expanding an orienting element of the orienting device in the subintimal space to orient a side port of the orienting device toward a lumen of the blood vessel distal of the occlusion; andadvancing a re-entry device out of the side port and into the true lumen of the blood vessel distal of the occlusion.2. The method of claim 1 , further comprising claim 1 , withdrawing the subintimal crossing device from the subintimal space prior to advancing the orienting device into the subintimal space.3. The method of claim 1 , wherein the orienting element expands in a planar orienting element.4. The method of claim 3 , wherein the planar orienting element is a preformed planar sinusoid.5. The method of claim 3 , wherein the planar orienting element is two wings that extend in opposite directions.6. The method of claim 3 , wherein the side port of the orienting device is oriented at a right angle to a plane of the planar orienting element.7. The method of claim 1 , wherein the subintimal crossing device includes a bulbous distal tip.8. The method of claim 1 , wherein the ...

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Номер записи: 36

07-01-2021 дата публикации

Polymer particles for neutrophil injury

Номер: US20210000745A1

Автор: Omolola Eniola-Adefeso, Theodore Standiford, William Kelley

Принадлежит: University of Michigan

Provided herein are methods of treatment, compositions, systems and kits using polymer particles as restraints of neutrophil function. Such methods include, but are not limited to, methods of preventing, treating, and/or ameliorating inflammatory diseases, infections, autoimmune diseases, malignant diseases, and other diseases or conditions in which neutrophils may be implicated. In some embodiments, polymer particles are useful for diagnosing neutrophil related diseases or conditions.

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Номер записи: 37

07-01-2021 дата публикации

Urinary Catheter with Guide Wire

Номер: US20210001080A1

Автор: ALDRED Bruce, Kwan Delbert

Принадлежит:

A urinary catheter is readily removed and replaced with a second urinary catheter without introducing foreign matter or contaminants into the bladder. The first urinary catheter includes an extra lumen that houses a sheath, which sheath seals the extra lumen from introduction of fluids. The sheath seals an opening hole at or near the tip of the catheter. After the sheath is extracted from the catheter, a guidewire is threaded through the extra lumen and into the patient's bladder. The first urinary catheter is withdrawn from the patient, leaving the guidewire in the patient. A second urinary catheter is inserted into the patient over the guidewire, with the guidewire present in the urine lumen of the second urinary catheter. The guidewire then is extracted from the patient. The second urinary catheter may also have an extra lumen and a sheath with a break-away seal so that the second urinary catheter may be removed and replaced in like manner. 1. A urinary catheter , comprising:an elongated tubular catheter body having a proximal end adapted for insertion into a patient's urinary tract and bladder, and having a distal end opposite the proximal end, and defining a length between the proximal end and the distal end, said elongated tubular catheter body having a sidewall, said elongated tubular catheter body having therein at least a first lumen, a second lumen and a third lumen, wherein the first lumen extends from a first hole at or near the proximal end along the length to a discharge opening at the distal end, and the second lumen terminates at a second hole through a sidewall of the catheter body, and the third lumen extends from a third hole through the sidewall of the catheter body to a fourth hole through the sidewall of the catheter body;an inflatable balloon bonded to the sidewall of the elongated tubular catheter body in fluid communication with the second hole; anda sheath within the third lumen, said sheath sealing the third hole, with a portion of said ...

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Номер записи: 38

07-01-2021 дата публикации

Remote access vascular and soft tissue tunneling dilator systems and methods of use

Номер: US20210001091A1

Автор: Gerald Ernst Schmidt

Принадлежит: Individual

Remote access, soft tissue tunneling dilators are used for the placement of central venous catheters of varying sizes into one or more jugular veins, for forming pathways of varying sizes through subcutaneous soft tissue, or for enlarging internal renal access pathways of varying sizes to accommodate access by urological instruments. Dilators comprise a tapered body extending from a proximal end to a distal tip, where both an outer diameter and a material hardness of the tapered body gradually increase distally-to-proximally from the distal tip toward the proximal end of the tapered body. The tapered body may include a plurality of visual indicators disposed upon the body at one or both of a plurality of distally-to-proximally increasing length increments and a plurality of distally-to-proximally increasing diameter increments. Other embodiments are also disclosed.

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Номер записи: 39

07-01-2021 дата публикации

Catheter assembly

Номер: US20210001092A1

Автор: Masahiro Ishida

Принадлежит: Terumo Corp

A catheter assembly includes: a catheter comprising a distal end portion, and a body portion that is continuous with a proximal end of the distal end portion and extends along an axial direction; a hollow inner needle that has a needle tip and is removably inserted into the catheter; and a guide wire that is inserted into the inner needle so as to be movable back and forth and that is deliverable from the needle tip. The distal end portion of the catheter comprises a constituent portion that is harder than, has a higher lubricity than, or has a higher elasticity than the body portion at at least a part of a surface of the distal end portion.

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Номер записи: 40

07-01-2021 дата публикации

MOVING A GUIDEWIRE IN A BRAIN LUMEN

Номер: US20210001093A1

Автор: Algawi Yehuda, Govari Assaf

Принадлежит:

A medical probe includes a guidewire, a guidewire advancement mechanism (GAM), and a middle inflatable balloon. The guidewire is configured for insertion into a lumen of an organ of a patient. The GAM is disposed at a distal end of the guidewire, with the GAM including: (i) a proximal inflatable balloon, (ii) a distal inflatable balloon, and (iii) a middle inflatable balloon that is coupled between the proximal and distal balloons. The proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence. 1. A medical probe , comprising:a guidewire for insertion into a lumen of an organ of a patient; and a proximal inflatable balloon;', 'a distal inflatable balloon; and', 'a middle inflatable balloon that is coupled between the proximal and distal balloons, wherein the proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence., 'a guidewire advancement mechanism (GAM) disposed at a distal end of the guidewire, the GAM comprising2. The medical probe according to claim 1 , and comprising a variable-length element claim 1 , which is fitted inside the middle balloon and connects the distal balloon and the proximal balloon.3. The medical probe according to claim 2 , wherein the variable-length element comprises a spring.4. A system claim 2 , comprising: a guidewire for insertion into a lumen of an organ of a patient;', a proximal inflatable balloon;', 'a distal inflatable balloon; and', 'a middle inflatable balloon that is coupled between the proximal and distal balloons, wherein the proximal, distal and middle balloons are configured to move the guidewire in the lumen by inflating and deflating in a predefined sequence; and, 'a guidewire advancement mechanism (GAM) disposed at a distal end of the guidewire, the GAM comprising, 'an inflation/deflation (I/D) unit comprising a controller and one or more pumps configured to ...

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Номер записи: 41

07-01-2016 дата публикации

GUIDE WIRE UTILIZING A COLD WORKED NICKEL-TITANUIM-NIOBIUM TERNARY ALLOY

Номер: US20160001047A1

Автор: Boylan John F., Simpson John A.

Принадлежит:

Guide wire devices fabricated from a linear pseudo-elastic Ni—Ti alloy and methods for their manufacture. The Ni—Ti alloy that includes nickel, titanium, and about 3 atomic % (at %) to about 30 at % niobium (Nb). Cold working the Ni—Ti alloy stabilizes the alloy's martensitic phase and yields a linear pseudo-elastic microstructure where reversion to the austenite phase is retarded or altogether blocked. The martensitic phase of cold worked, linear pseudo-elastic Ni—Ti—Nb alloy has an elastic modulus that is considerably higher than the comparable cold worked, linear pseudoelastic binary Ni—Ti alloy. This yields a guide wire device that has better torque response and steerability as compared to cold worked, linear pseudoelastic binary Ni—Ti alloy or superelastic binary Ni—Ti alloy. 1. A guide wire device , comprising:an elongated shaft member having a proximal section and a distal section; wherein Nb is present in the cold worked Ni—Ti alloy in an amount ranging from about 3 at % to about 30 at %, and Ni is present in the cold worked Ni—Ti alloy in an amount about 2 at % to 4 at % higher than the amount of Ti, and', 'wherein the cold worked Ni—Ti alloy exhibits linear pseudoelastic behavior., 'at least a portion of the elongated shaft member being fabricated from a cold worked nickel-titanium (Ni—Ti) alloy comprising nickel (Ni), titanium (Ti), and niobium (Nb),'}2. The guide wire device of claim 1 , wherein Ni is present in the cold worked Ni—Ti alloy in an amount about 3 at % higher than the amount of Ti.3. The guide wire device of claim 1 , wherein the cold worked Ni—Ti alloy comprises about 36.5 atomic % (at %) to about 50 at % Ni claim 1 , about 33.5 at % to about 47 at % Ti claim 1 , and about 3 at % to about 30 at % Nb.4. The guide wire device of claim 1 , wherein the cold worked Ni—Ti alloy comprises about 38 at % to about 47 at % Ni claim 1 , about 35 at % to about 44 at % Ti claim 1 , and about 9 at % to about 27 at % Nb.5. The guide wire device of claim 1 ...

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Номер записи: 42

07-01-2016 дата публикации

GUIDEWIRE

Номер: US20160001048A1

Автор: KOIKE Tadahiro

Принадлежит:

A guidewire is capable of pressing against a lesion without bending excessively, thereby ensuring reliable use. The guidewire includes a shaft, an outer coil provided around a distal portion of the shaft, a first inner coil provided within a distal portion of the outer coil, and a second inner coil provided proximal to the first inner coil within the outer coil. A first joining member joins the shaft to a proximal end of the first inner coil, or a proximal portion of the first inner coil distal to the proximal end of the first inner coil. A second joining member joins the shaft to a distal end of the second inner coil, or a distal portion of the second inner coil proximal to the distal end of the second inner coil. The first joining member and the second joining member are spaced from each other in a longitudinal direction of the guidewire. 1. A guidewire comprising:a shaft;an outer coil provided around an outer circumference of a distal portion of the shaft;a first inner coil provided within a distal portion of the outer coil; and wherein:', 'a proximal end of the first inner coil is joined to the shaft via a first joining member, and a distal end of the second inner coil is joined to the shaft via a second joining member, and', 'the first joining member and the second joining member are spaced from each other in a longitudinal direction of the guidewire., 'a second inner coil provided proximal to the first inner coil within the outer coil,'}2. The guidewire according to claim 1 , wherein the outer coil has an outer diameter that increases from a distal end of the outer coil toward a proximal end of the outer coil.3. The guidewire according to claim 1 , wherein a diameter of the second inner coil is greater than a diameter of the first inner coil.4. The guidewire according to claim 2 , wherein a diameter of the second inner coil is greater than a diameter of the first inner coil.5. The guidewire according to claim 1 , wherein each of the first inner coil and the ...

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Номер записи: 43

04-01-2018 дата публикации

ACCESS DEVICE

Номер: US20180001060A1

Автор: Anderson Janelle, Bierman Steven F., Huang Wei, Pluth Richard A.

Принадлежит:

An access device places a medical article within a body space of a patient. The device has a needle that includes an elongated body and a needle hub. The device further includes a dilator disposed on and slideable along the elongated body of the needle and a medical article. The medical article is disposed on and slideable along the dilator. A track extends in a proximal direction from the dilator. The needle hub slides along at least a portion of the track between a first position and a second position. The device further includes a locking mechanism operably disposed between the track and the needle hub so as to inhibit further axial movement of the needle in the proximal direction when the needle hub is in the second position. 1a needle having an elongated needle body with a distal end and a hub from which the needle body extends;a dilator disposed on the needle body, the needle and the dilator being moveable relative to each other from a first position, wherein the distal end of the needle lies distal of the dilator, and a second position wherein the distal end of the needle lies within the dilator, the dilator including a dilator hub and an elongated dilator shaft that extends from the dilator hub; anda locking mechanism operating between the needle and the dilator to inhibit movement of the needle relative to the dilator when in the second position, the locking mechanism being configured to allow movement of the needle from the first position toward the second position without engagement by the locking mechanism so as to lessen resistance to the movement.. An access device for placing a medical article within a body space, comprising: This application is a continuation application of U.S. patent application Ser. No. 13/185,358, filed Jul. 18, 2011, which is a divisional application of U.S. patent application Ser. No. 12/106,196, filed Apr. 18, 2008, which issued as U.S. Pat. No. 8,105,286 on Jan. 31, 2012, which is related to and claims the benefit under 35 U. ...

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Номер записи: 44

05-01-2017 дата публикации

METHODS FOR MANUFACTURING A GUIDE WIRE UTILIZING A COLD WORKED NICKEL-TITANIUM-NIOBIUM TERNARY ALLOY

Номер: US20170000985A1

Автор: Boylan John F., Simpson John A.

Принадлежит:

Guide wire devices fabricated from a linear pseudo-elastic Ni—Ti alloy and methods for their manufacture. The Ni—Ti alloy that includes nickel, titanium, and about 3 atomic % (at %) to about 30 at % niobium (Nb). Cold working the Ni—Ti alloy stabilizes the alloy's martensitic phase and yields a linear pseudo-elastic microstructure where reversion to the austenite phase is retarded or altogether blocked. The martensitic phase of cold worked, linear pseudo-elastic Ni—Ti—Nb alloy has an elastic modulus that is considerably higher than the comparable cold worked, linear pseudoelastic binary Ni—Ti alloy. This yields a guide wire device that has better torque response and steerability as compared to cold worked, linear pseudoelastic binary Ni—Ti alloy or superelastic binary Ni—Ti alloy. 1. A method for fabricating a guide wire device , comprising:providing an elongated shaft member that includes a proximal section and a distal section, wherein at least a portion of the elongated shaft member comprises a nickel-titanium (Ni—Ti) alloy comprising nickel (Ni), titanium (Ti), and niobium (Nb); andcold working at least the Ni—Ti alloy to yield a Ni—Ti alloy that exhibits linear pseudoelastic behavior and that displays a martensitic phase.2. The method of claim 1 , wherein the Ni—Ti alloy comprises about 3 at % Nb to about 30 at % Nb and Ni is present in an amount about 2 at % to about 4 at % higher than an at % of Ti.3. The method of claim 2 , wherein Ni is present in an amount about 3 at % higher than an at % of Ti.4. The method of claim 3 , wherein the Ni—Ti alloy comprises about 47 at % Ni claim 3 , about 44 at % Ti claim 3 , and about 9 at % Nb.5. The method of claim 1 , wherein providing the elongated shaft member includes fabricating the elongated shaft member by at least one of drawing or grinding.6. The method of claim 1 , wherein the cold working includes at least one of high force flattening claim 1 , drawing claim 1 , stamping claim 1 , rolling claim 1 , or swaging.7 ...

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Номер записи: 45

02-01-2020 дата публикации

Producing a Guidewire Comprising a Position Sensor

Номер: US20200001052A1

Автор: Algawi Yehuda, Govari Assaf, Sitnitsky Ilya

Принадлежит:

A method for producing a guidewire, the method includes producing a position sensor by providing a shaft-section having a solid profile, which is sized and shaped to move in an anatomical material transportation system. A wire is wound around an axis of the shaft-section and first and second ends of the wire are coupled to respective first and second locations on an outer surface of the shaft-section. A guidewire-shaft is provided, and the position sensor is coupled to a distal end of the guidewire-shaft. 1. A method for producing a guidewire , the method comprising: providing a shaft-section having a solid profile, which is sized and shaped to move in an anatomical material transportation system; and', 'winding, around an axis of the shaft-section, a wire, and coupling first and second ends of the wire to respective first and second locations on an outer surface of the shaft-section; and, 'producing a position sensor byproviding a guidewire-shaft, and coupling the position sensor to a distal end of the guidewire-shaft.2. The method according to claim 1 , and comprising producing the wire by cutting a wire-section from a continuous wire.3. The method according to claim 1 , wherein providing the shaft-section comprises cutting the shaft-section from a continuous shaft.4. The method according to claim 1 , and comprising moving the shaft-section by conducting at least one of: (i) moving the shaft-section along a direction parallel to the axis claim 1 , and (ii) rotating the shaft-section about the axis.5. The method according to claim 4 , wherein winding the wire comprises a sequence of operations consisting of: (i) coupling the first end to the first location claim 4 , (ii) moving the shaft-section claim 4 , and (iii) coupling the second end to the second location.6. The method according to claim 1 , and comprising claim 1 , prior to winding the wire claim 1 , coating the outer surface of the shaft-section with an electrically insulating biocompatible material.7. The ...

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Номер записи: 46

03-01-2019 дата публикации

Guidewire access sleeve

Номер: US20190001103A1

Автор: Christopher Nason KORKUCH

Принадлежит: Abiomed Inc

An access sleeve can be attached to a medical device having first and second ends, the first end being positioned inside of a patient and the second end being positioned external to a patient. The access sleeve can include a tubular sleeve body having first and second open ends that define a first lumen extending along a longitudinal axis of the sleeve body. An opening in the sleeve body can connect the first lumen to an outer surface of the sleeve body. The access sleeve can be selectively attached to the medical device (e.g. catheter of a heart pump) and inserted into the access site when the medical device is positioned in the patient. The access sleeve can maintain vascular access to a patient's access site such as an arteriotomy and can be removed without disturbing the position of the medical device.

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Номер записи: 47

01-01-2015 дата публикации

IMPLANTABLE DEVICES AND METHODS FOR EVALUATION OF ACTIVE AGENTS

Номер: US20150005595A1

Автор: Fuller Jason, Jonas Oliver, Santini John, Tepper Robert I.

Принадлежит:

Devices for the local delivery of microdose amounts of one or more active agents, alone or in combination, in one or more dosages, to selected tissue of a patient are described. The devices generally include multiple microwells arranged on or within a support structure and contain one or more active agents, alone or in combination, in one or more dosages and/or release pharmacokinetics. In an exemplary embodiment, the device has a cylindrical shape, having symmetrical wells on the outside of the device, each well containing one or more drugs, at one or more concentrations, sized to permit placement using a catheter, cannula, or stylet. Optionally, the device has a guidewire, and fiber optics, sensors and/or interactive features such as remote accessibility to provide for in situ retrieval of information and modification of device release properties. In a preferred embodiment, the fiber optics and/or sensors are individually accessible to discrete wells. 1. An implantable microdevice comprising:a support structure having microwells on a surface of or formed within the support structure; optionally including a compound release mechanism for controlling the release of an active agent from the microwells;wherein the device is configured to permit implantation into a tissue using a catheter, cannula or biopsy needle, andwherein the device is further configured to release one or more active agents from the microwells to separate and discrete areas of tissue adjacent to the microwell.2. The microdevice of claim 1 , comprising an active agent release mechanism selected from the group consisting of the dimensions of an opening into the microwells claim 1 , a film claim 1 , a membrane claim 1 , a polymer matrix claim 1 , and a hydrogel pad.3. The microdevice of further comprising one or more active agent or combinations of active agent within the microwells.4. The microdevice of wherein the active agent or combinations thereof are present in different amounts.5. The ...

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Номер записи: 48

01-01-2015 дата публикации

X-RAY MARKER GUIDED AUTOMATED GUIDE WIRE OR WORKING CATHETER ADVANCEMENT

Номер: US20150005620A1

Автор: Bergman Per, Blacker Steven, Elden Robert, Jennings Jerry, Kottenstette Nicholas, Schott Jean-Pierre

Принадлежит: Corindus, Inc.

Disclosed is the automated rapid advancement of a guide wire through a guide catheter using x-ray markers. The procedure involves providing a guide wire with a marker at or adjacent its tip, providing a guide catheter with a marker at or adjacent its distal terminus, rapidly advancing the guide wire through the guide catheter from its proximal end to its distal end under the control of an automated apparatus, and terminating the automated rapid advancement when the guide wire tip marker becomes adjacent to the guide catheter distal end marker. Fluoroscopic images may be taken of the of the guide wire as it rapidly advances through the guide catheter and image processing software used to determine when to terminate the rapid advancement. This software may use either the position or the velocity of the guide wire to make this determination. 1. A process for automatically advancing a guide wire through a guide catheter comprising:providing a guide wire with a marker at or adjacent its tip;providing a guide catheter with a marker at or adjacent its distal terminus;rapidly advancing the guide wire through the guide catheter from its proximal end to its distal end under the control of an automated apparatus; andterminating the automated rapid advancement when the guide wire tip marker becomes adjacent to the guide catheter distal end marker.2. The process of wherein:fluoroscopic images are taken of the of the guide wire as it rapidly advances through the guide catheter;image processing software estimates the distance between guide wire tip marker and the guide catheter distal end marker; andthe image processing software terminates the automated rapid advancement when the estimated distance becomes smaller than a preset value.3. The process of wherein:the fluoroscopic images are taken are taken intermittently such that an image is taken when the estimated distance is at the preset value.4. The process of wherein:the guide catheter is provided with multiple markers at known ...

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Номер записи: 49

01-01-2015 дата публикации

WEEPING BALLOON CATHETER WITH DRUG DELIVERY BALLOON IN FLUID COMMUNICATION WITH COMBINATION LUMEN

Номер: US20150005743A1

Автор: McCullough Adam Brian

Принадлежит: Cook Medical Technologies LLC

A weeping balloon catheter includes a catheter having an elongate tubular body defining an inflation lumen and a combination lumen that terminates at an open distal end of the elongate tubular body. A dilation balloon is disposed at a distal end of the elongate tubular body and is in fluid communication with the inflation lumen. A drug delivery balloon is disposed at least partially over the dilation balloon and includes at least one drug release opening through an outer wall of the drug delivery balloon. The drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body. 1. A weeping balloon catheter , comprising:a catheter having an elongate tubular body defining an inflation lumen and a combination lumen, wherein the combination lumen terminates at an open distal end of the elongate tubular body;a dilation balloon disposed at a distal end of the elongate tubular body and in fluid communication with the inflation lumen; anda drug delivery balloon disposed at least partially over the dilation balloon and including at least one drug release opening through an outer wall of the drug delivery balloon, wherein the drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body.2. The weeping balloon catheter of claim 1 , further including a wire guide received within the combination lumen claim 1 , wherein a drug delivery path of the weeping balloon catheter is defined by a first clearance between the wire guide and a wall of the combination lumen and the drug delivery balloon.3. The weeping balloon catheter of claim 2 , wherein the sidewall opening is proximal to the dilation balloon.4. The weeping balloon catheter of claim 2 , wherein the sidewall opening is proximal to a transition of the catheter from a dual lumen catheter to a single lumen catheter.5. The weeping balloon catheter of claim 2 , wherein a distal segment of the ...

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Номер записи: 50

01-01-2015 дата публикации

3-d mapping for guidance of device advancement out of a guide catheter

Номер: US20150005745A1

Автор: Jean-Pierre Schott, Jerry Jennings, Nicholas Kottenstette, Per Bergman, Steven Blacker

Принадлежит: Corindus Inc

The present disclosure involves a process for guiding the distal end of a guide wire or working catheter as it emerges from the distal end of a guide catheter into a blood vessel. The distal end of the guide wire or working catheter is provided with an X-ray marker, a determination is made that this distal end has emerged from the distal end of the guide catheter and a fluoroscopic image of the distal end of a guide wire or working catheter is taken. This image is correlated with the length of guide wire or working catheter inserted into the guide catheter. After further advancement of the guide wire or working catheter, another fluoroscopic image of the distal end of a guide wire or working catheter is taken and this image is correlated with the length of guide wire or working catheter which has been inserted into the guide catheter.

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Номер записи: 51

01-01-2015 дата публикации

GUIDEWIRE

Номер: US20150005746A1

Автор: Sato Hideo

Принадлежит:

A guidewire includes a wire body having a first wire arranged on a distal end side and a second wire arranged on a proximal end side of the first wire. A proximal end surface of the first wire and a distal end surface of the second wire are joined to each other to form a joint portion. An outer member is arranged on an outer peripheral side of the wire body and forms a tubular shape which covers the wire body at least from a distal end portion of the first wire to the joint portion. An inner member is arranged between an outer peripheral portion of the wire body and an inner peripheral portion of the outer member and covers the joint portion. The inner member is an inner coil formed by winding a wire for the inner member into a coil shape. 1. A guidewire comprising:a wire body that has a first wire arranged on a distal end side and a second wire arranged on a proximal end side of the first wire, the second wire being formed of a material whose rigidity is higher than that of a material forming the first wire, and a proximal end surface of the first wire and a distal end surface of the second wire being joined to each other so as to form a joint portion;an outer member arranged on an outer peripheral side of the wire body and forming a tubular shape which covers the wire body at least from a distal end portion of the first wire to the joint portion, the outer member having flexibility; andan inner member arranged between an outer peripheral portion of the wire body and an inner peripheral portion of the outer member, and covering the joint portion;wherein the inner member is an inner coil formed by winding a wire for the inner member into a coil shape.2. The guidewire according to claim 1 ,wherein the inner coil has a distal end portion and a proximal end portion, and at least any one of the distal end portion and the proximal end portion is stretchable.3. The guidewire according to claim 1 ,wherein the joint portion has an outer diameter which is the same as an ...

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Номер записи: 52

14-01-2016 дата публикации

Guidewire Navigation for Sinuplasty

Номер: US20160007842A1

Автор: Altmann Andres C., Gliner Vadim, Govari Assaf, Jenkins Thomas R., Kesten Randy J.

Принадлежит:

Apparatus, including a guidewire having a distal end, that is configured to be inserted into proximity with a nasal sinus of a patient, the guidewire having a lumen. The apparatus also includes an optic fiber, traversing the lumen, configured to illuminate the distal end, and a coil, wound around the optic fiber and located within the lumen at the distal end, configured to generate a signal in response to a magnetic field interacting with the coil. A processor is configured to receive the signal and to evaluate a location of the distal end in response to the signal. 1. Apparatus , comprising ,a guidewire having a distal end, configured to be inserted into proximity with a nasal sinus of a patient, the guidewire having a lumen;an optic fiber, traversing the lumen, configured to illuminate the distal end;a coil, wound around the optic fiber and located within the lumen at the distal end, configured to generate a signal in response to a magnetic field interacting with the coil; anda processor, configured to receive the signal and to evaluate a location of the distal end in response to the signal.2. The apparatus according to claim 1 , and comprising one or more magnetic field generators fixedly positioned in proximity to the nasal sinus claim 1 , configured to generate the magnetic field.3. The apparatus according to claim 2 , wherein the processor is configured to register a location of the one or more magnetic field generators with the patient.4. The apparatus according to claim 1 , and comprising a core-wire claim 1 , traversing the lumen claim 1 , configured to stabilize the guidewire.5. The apparatus according to claim 1 , wherein the processor is configured to incorporate an indication of the location of the distal end into a displayed image of the patient.6. The apparatus according to claim 5 , wherein the processor is configured to recognize the nasal sinus in a received image of the patient claim 5 , and to indicate the recognized nasal sinus in the displayed ...

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Номер записи: 53

14-01-2016 дата публикации

Guidewires and Methods for Percutaneous Occlusion Crossing

Номер: US20160008584A1

Автор: Bridgeman John, Root Howard C.

Принадлежит:

Guidewires and related methods for percutaneous crossing of an occlusion in a blood vessel are disclosed. A guidewire can include a core member and a jacket member. The core member can extend from a proximal end portion to a distal end portion, with the distal end portion including a first segment, a more distal second segment and a more proximal third segment. The first segment can be configured to encourage prolapse by way of a short taper or a diameter-reduced portion. The jacket member can surround at least the distal end portion of the core member. A method can include advancing a distal end portion of the guidewire through the natural lumen of a blood vessel to a location near an occlusion. A longitudinal pushing force can be applied to a proximal end portion of the guidewire, thereby causing a first segment of the distal end portion to prolapse. 1. A guidewire , comprising:a core member extending from a proximal end portion to a distal end portion, the distal end portion including a first segment, a more distal second segment and a more proximal third segment,the first segment configured to encourage prolapse; anda jacket member surrounding at least the distal end portion of the core member.2. The guidewire of claim 1 , wherein the first segment has a length in a range of about 0.05 cm to about 1 cm claim 1 , inclusive.3. The guidewire of claim 2 , wherein the length of the first segment is in a range of about 0.05 cm to about 0.5 cm claim 2 , inclusive.4. The guidewire of claim 2 , wherein a diameter of a proximal end of the second segment is at least 40 percent less than a diameter of a distal end of the third segment claim 2 , andwherein the diameter reduction takes place within the first segment.5. The guidewire of claim 1 , wherein longitudinal stiffness of the second segment is greater than longitudinal stiffness of the first segment.6. The guidewire of claim 1 , wherein the outer surface of the first segment includes a parabolic or near-parabolic shape ...

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Номер записи: 54

14-01-2016 дата публикации

Guide wire

Номер: US20160008585A1

Автор: Yutaka Tano

Принадлежит: Terumo Corp

A guide wire is disclosed, which includes a wire main body that has flexibility; a distal end member that is fixed to a distal end portion of the wire main body; and a tubular member that is arranged closer to a proximal end side than the distal end member, and on an outer circumference of the wire main body. The tubular member can be configured such that the longitudinal entirety of the tubular member is not fixed to the wire main body. The tubular member can be provided such that a distal end portion of the tubular member is not fixed to the distal end member. A proximal-end side thickness reduction portion with a wall thickness decreasing toward the proximal end side is provided in a proximal end portion of the tubular member.

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Номер записи: 55

14-01-2016 дата публикации

GUIDE WIRE

Номер: US20160008586A1

Автор: MATSUBARA Yutaka

Принадлежит: TERUMO KABUSHIKI KAISHA

A guide wire includes a wire main body that has a plate-like portion in a distal end portion of the wire main body and a reinforcement portion that is provided on at least one surface of the plate-like portion and reinforces the plate-like portion. The reinforcement portion is made up of two wire rods, and both end portions of the reinforcement portion are fixed to the plate-like portion. The plate-like portion is formed in a ribbon shape, and the reinforcement portions are diagonally provided on the same plane of the plate-like portion, and intersect each other. The guide wire has a coil that covers the plate-like portion and the reinforcement portion. 1. A guide wire comprising:a wire main body including a plate-like portion in a distal end portion of the wire main body; anda reinforcement portion provided on at least one surface of the plate-like portion, and which reinforces the plate-like portion.2. The guide wire according to claim 1 ,wherein the reinforcement portion includes at least one wire rod.3. The guide wire according to claim 2 ,wherein the reinforcement portion includes opposing end portions and both end portions of the reinforcement portion are fixed to the plate-like portion.4. The guide wire according to claim 2 ,wherein the plate-like portion is formed in a ribbon shape, andwherein the reinforcement portion is provided on a diagonal line of the plate-like portion.5. The guide wire according to claim 1 ,wherein the plate-like portion includes a first surface and a second surface;wherein the reinforcement portion defines a first reinforcement portion provided on the first surface of the plate-like portion, and further comprising a second reinforcement portion provided on the second surface of the plate-like portion.6. The guide wire according to claim 2 ,wherein the reinforcement portion includes two wire rods, andwherein the two wire rods are provided on the same plane of the plate-like portion, and intersect each other.7. The guide wire according ...

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Номер записи: 56

14-01-2016 дата публикации

RELEASABLE TORQUE DEVICE

Номер: US20160008587A1

Автор: ALENEZI ASMA MATAR, ALOKAILI RIYADH NASSER

Принадлежит:

The releasable torque device obviates the need for removal of the wire introducer in order to torque or manipulate a vascular or other guide wire and/or catheter in a medical procedure, and further obviates the need to remove the torque device for wire and/or catheter introduction. The device may include a base cylinder and an inflation cylinder defining a variable fluid volume therebetween. As the inflation cylinder is pushed toward the base cylinder, the fluid is forced through a port in the inner wall of the inflation cylinder and between a tubular inner cylinder and an inflatable guide wire grip within the inner cylinder to squeeze the grip onto the guide wire passing axially therethrough. Alternatively, the device only has a central tube and an inflatable guide wire grip therein, using a remotely disposed fluid pump and reservoir supplying fluid to the tube and guide wire grip. 1. A releasable torque device , comprising:an elongate rigid tube having a first end, a second end opposite the first end, an inner surface, and at least one inflation port defined therein adjacent the first end;an elongate, selectively inflatable guide wire grip disposed within the rigid tube, the guide wire grip having a first end sealed to the inner surface of the rigid tube at the first end, a second end sealed to the inner surface of the rigid tube at the second end, an inward facing guide wire contact surface, the rigid tube and the guide wire grip defining a selectively variable guide wire grip inflation chamber therebetween, the rigid tube defining an axially open guide wire passage extending through the tube; anda selectively operable, variable volume master inflation chamber, the at least one inflation port fluidly connecting the master inflation chamber with the guide wire grip inflation chamber.2. The releasable torque device according to claim 1 , further comprising:an annular end wall extending outward from the first end of the rigid tube, the end wall having an outer edge; ...

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Номер записи: 57

14-01-2021 дата публикации

INTEGRATED COIL VASCULAR DEVICES

Номер: US20210008351A1

Автор: Davis Clark C., Lippert John A., Snyder Edward J., Turnlund Todd

Принадлежит:

The present disclosure relates to vascular devices such as guidewires and microcatheters having integrated coil sections for optimizing torquability, flexibility, and ability to shape and maintain the distal tip. A guidewire device includes a core and a tube structure coupled to the core such that at least a portion of the core passes into the tube structure. A distal section of the tube structure includes a spiral cut arrangement that configures the distal section as an integral coil integrally incorporated as part of the tube structure. The integrated coil configuration increases the flexibility of the tube structure to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device. 1. A microcatheter device having a gradient flexibility profile that generally increases in flexibility toward a distal end of the device , the device comprising:a tube structure having a distal section, a proximal section, and a wall defining an interior lumen;an integral coil disposed at the distal section of the tube structure, the integral coil being integrally formed as part of the tube structure as a result of a spiral cut pattern along a length of the distal section of the tube structure, the integral coil providing the distal section of the tube structure greater flexibility than the proximal section of the tube structure; anda transition portion disposed along at least a portion of the proximal section adjacent to the integral coil, the transition portion including a plurality of fenestrations extending through the wall and exposing the lumen, the plurality of fenestrations defining a plurality of axially extending beams and a plurality of circumferentially extending rings.2. The microcatheter device of claim 1 , wherein the plurality of fenestrations form a cut pattern selected from the group consisting of a one-beam cut pattern claim 1 , a two-beam cut pattern claim 1 , a three-beam cut pattern claim 1 , a cut pattern ...

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Номер записи: 58

14-01-2021 дата публикации

HOUSING FOR STORAGE AND MANIPULATION OF A SURGICAL GUIDE WIRE

Номер: US20210008352A1

Автор: Wehbi Elias

Принадлежит: The Regents of the University of California

A housing has a spiral passageway which contains a catheter which may be manually extracted from the housing by means of a wheel having a polygonal or otherwise textured circumferential surface and mounted on a shaft which extends through a non-circular bearing defined in an outer portion of the housing. An inner portion of the wheel extends into the spiral passageway adjacent the wire catheter and an outer portion of the wheel outwardly from the housing whereby the upper surface of the knob can be manipulated by a member of the surgical team in one direction and the wire catheter below the knob will be advanced in the opposite direction. The non-circular bearing has a generally circular outer portion in which the textured surface of the knob is only intermittently in contact with the catheter whereby the wire catheter may be advanced, and a generally linear inner portion sloping inwardly towards the catheter. When the knob's shaft is held loosely in the outer portion of the bearing, the wire catheter is free to travel. However when the knob's shaft is moved into the sloping portion of the bearing, the operator can push the knob in one direction to force the knob against the wire catheter and lock the catheter into intimate contact with the lower surface of the passageway, and in the opposite direction to retract the knob slightly away from the catheter thereby permitting limited movement of the catheter relative to the housing. 1. Mechanism for manipulation of a surgical guide wire , comprising:a hand held housing including a spiral passageway for containing the guide wire;a disk shaped knob having a polygonal or otherwise textured circumference about an axis of rotation;an axial shaft extending along the axis of rotation of the knob and confined within a pair of opposed openings in opposite sides of the spiral passageway for securing the knob to the housing with an inner portion of the knob's textured circumference extending into the spiral passageway and into ...

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Номер записи: 59

14-01-2021 дата публикации

Steerable Guidewire and Method of Use

Номер: US20210008353A1

Автор: Lenker Jay A.

Принадлежит: Indian Wells Medical, Inc.

This invention is a transvascularly placed steerable guidewire, further including internal steerability and the ability to articulate in a direction at right angles to its longitudinal axis at or near its distal end. The steerable guidewire is generally fabricated from stainless steel and includes an outer tube, an inner tube, hub structures, and a distal articulating region. The steerable guidewire can be advanced through a body lumen in its straight configuration and then be selectively articulated or curved to permit negotiation of tortuous curvature. The steerable guidewire hub can be removed to permit advancement of catheters over its proximal end followed by re-attachment of the hub to permit deflection of the distal end of the steerable guidewire. Removal of the hub can result in a limp guidewire or maintenance of a forced curvature of the distal end of the guidewire. 1. A method of steering a guidewire into a body lumen , tissue , or cavity of mammalian body comprising the steps of:inserting the guidewire into the body lumen, tissue, or cavity and routing the guidewire to a target site, wherein the guidewire is substantially straight and uncurved, wherein the guidewire comprises an inner tube formed into at least one control rod at its distal end, an outer tube, a bendable region near a distal end of the guidewire and a hub that comprises a control element at a proximal end on the guidewire;deflecting the bendable region near the distal end of the guidewire into a curve, wherein the deflecting step is performed by application of force by the control element on the proximal end of the guidewire;removing the hub of the guidewire; andadvancing a catheter over the curved guidewire to the target site by way of a lumen in the catheter or dilator comprised by the catheter.2. The method of wherein removal of the hub from the guidewire results in control forces being removed from the guidewire.3. The method of wherein removal of the hub from the guidewire results in ...

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Номер записи: 60

10-01-2019 дата публикации

AN APPARATUS FOR USE IN A MEDICAL PROCEDURE IN THE VASCULATURE COMPRISING A GUIDEWIRE AND A CATHETER AND A METHOD OF USING THE SAME

Номер: US20190009059A1

Автор: RONAN Allan, RYAN Eoin

Принадлежит:

There is provided an apparatus for use in a bodily lumen. The apparatus comprises a guidewire and a catheter. The guidewire has a proximal end portion and a distal end portion, The catheter has a proximal end portion and a distal end portion. The catheter includes a lumen for receiving the guidewire. The catheter is configured to be translated along the guidewire. The catheter is configured to be biased towards a translated position along the guidewire by a magnetic attraction between the guidewire and the catheter. 117-. (canceled)18. An apparatus for use in a bodily lumen , comprising:a guidewire having a proximal end portion and a distal end portion; anda catheter having a proximal end portion and a distal end portion, the catheter including a lumen for receiving the guidewire, the catheter being configured to be translated along the guidewire,wherein the catheter is configured to be biased towards a translated position along the guidewire by a magnetic attraction between the guidewire and the catheter, and wherein the catheter and the guidewire are configured to snap fit into alignment with each other.19. The apparatus of claim 18 , wherein the guidewire and/or the catheter includes a magnet.20. The apparatus of claim 18 , wherein the guidewire and/or the catheter includes a magnetically responsive element.21. The apparatus of claim 20 , wherein the magnetically responsive element is a ferromagnet.22. The apparatus of claim 18 , wherein the catheter is biased towards only the translated position.23. The apparatus of claim 18 , wherein the magnetic attraction between the guidewire and the catheter is the greatest at the translated position.24. The apparatus of claim 18 , wherein the magnetic attraction between the guidewire and the catheter is due to a magnetic attraction between the distal end portion of the guidewire and the distal end portion of the catheter.25. The apparatus of claim 18 , wherein the guidewire comprises a radiopaque marker.26. The apparatus ...

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Номер записи: 61

09-01-2020 дата публикации

MEDICAL DEVICE

Номер: US20200009300A1

Автор: OIWA Tomoya

Принадлежит: TERUMO KABUSHIKI KAISHA

The disclosed medical device has high visibility on non-woven fabric having a color such as green, blue, or the like, excellent identifiability from other medical devices having a color such as green, blue, or the like, and high surface smoothness. The medical device comprises an elongated body and a resin layer for covering at least a proximal portion of the elongated body, in which the resin layer has a first layer which includes a first fluororesin, titanium oxide, and a dispersant, and a second layer which is formed on the first layer and includes a second fluororesin. The content of the titanium oxide is 30% by weight or more relative to the solid content of the first layer, and an acid value of the dispersant is 20 to 90 mg/KOH. 1. A medical device possessing a proximal-most end , the medical device comprising:an elongated body possessing a distal-most end, a proximal-most end and a distal portion extending from the distal-most end of the elongated body towards the proximal-most end of the elongated body;a first resin layer covering the proximal portion of the elongated body and not covering the distal portion of the elongated body, the first resin layer having a composition that includes a first fluororesin, titanium oxide, and a polymer dispersant that facilitates dispersion of the titanium oxide in the first fluororesin;a second resin layer covering the first resin layer and not covering the distal portion of the elongated body, the second resin layer having a composition that includes a second fluororesin;a content of the titanium oxide in the first resin layer is 30% by weight or more relative to a solid content of the first layer to color so that the proximal part of the medical device is colored, is visible against a colored fabric used in an operating room and is identifiable from other medical devices that are colored; andthe polymer dispersant possessing an acid value that is 20 to 90 mgKOH/g to inhibit reduction of dispersion of the titanium oxide ...

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Номер записи: 62

08-01-2015 дата публикации

GUIDEWIRE

Номер: US20150011964A1

Автор: ABNER William, GAFFNEY Brian, STORBECK Gene T., Walak Steven E.

Принадлежит:

According to an embodiment of the present disclosure, a guidewire for performing medical procedures may include a central core. The central core may include a first region having a first width and a distal surface. The central core may also include a second region distal to the first region. The second region may have a second width different than the first width. The second region may also have a proximal surface. At least a portion of the distal surface of the first region may be angled relative to a portion of the proximal surface of the second region. The guidewire may also include a first covering surrounding the first region. The first covering and the first region may form a first covered region having a third width. The guidewire may also include a second covering surrounding the second region. The second covering and the second region may form a second covered region having a fourth width. The third width and the fourth width may be substantially equal. 1. A guidewire for performing medical procedures , the guidewire comprising: a first region having a first width and a distal surface, and', 'a second region distal to the first region, the second region having a second width different than the first width, and the second region having a proximal surface, wherein at least a portion of the distal surface of the first region is angled relative to a portion of the proximal surface of the second region;, 'a central core, includinga first covering surrounding the first region, the first covering and the first region forming a first covered region, and the first covered region having a third width; anda second covering surrounding the second region, the second covering and the second region forming a second covered region, and the second covered region having a fourth width, wherein the third width and the fourth width are substantially equal.2. The guidewire of claim 1 , wherein the distal surface of the first region is a distal end face of the first region.3. ...

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Номер записи: 63

19-01-2017 дата публикации

CATHETER AND ASSOCIATED METHODS

Номер: US20170014097A1

Автор: Labrousse Louis Marc Jean Lucien, Leroux Lionel Jean Pierre

Принадлежит:

A catheter includes a hollow body which extends longitudinally and has at least one first side window and a probe emitting a wave beam, the first side window allowing the radiation of the beam in a region next to the catheter for generating imaging, the catheter also including a longitudinal guiding device allowing a transmission of a movement to an intervention element, the intervention element moving in at least an area of the beam, the intervention angle between the first intervention element and the axis of the catheter being controlled by a remote control system. 1. A catheter comprising:a hollow body extending longitudinally; a first side window and a probe to emit a wave beam, said first side window allowing the wave beam to be radiated in a side region lateral to the catheter for generating imaging, said side region being substantially planar in a first plane, and a longitudinal guiding device allowing a movement to be transmitted to an intervention element, the movements of said intervention element being held in the first plane, an intervention angle between the first intervention element and the an axis of the catheter being driven by a remote driving system.2. The catheter according to claim 1 , wherein the probe is an ultrasonic probe and the first side window is an ultrasonic window claim 1 , that is not filtering the ultrasonic waves.3. The catheter according to claim 1 , wherein the probe is configured to move in the hollow body and a holding device allows the stability of the probe to be provided when positioned facing the first side window.4. The catheter according to claim 1 , further comprising a second longitudinal guiding device allowing at least one arm of the probe removable inside the hollow body of the catheter to be directed and allowing the probe to be positioned facing the first side window.5. The catheter according to claim 1 , wherein the probe is attached to the hollow body of the catheter.6. The catheter according to claim 1 , ...

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Номер записи: 64

18-01-2018 дата публикации

Wire member

Номер: US20180014899A1

Автор: Kouji Kuroda, Makoto Kawahara

Принадлежит: Gunze Ltd

A wire member that exhibits an excellent sliding property is provided. A wire member 1 includes: a core member 2 that has an elongated shape; and a surface-disposed member 3 that is spirally disposed on a surface of the core member 2 so as to leave predetermined spaces along a longitudinal direction of the core member 2 . In a cross-sectional view taken along the axis of the core member 2 , the front end and the rear end of each of projections 3 A formed by the surface-disposed member 3 respectively form contact angles θ 1, θ2 each being 5° or greater relative to the surface of the core member 2.

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Номер записи: 65

18-01-2018 дата публикации

GUIDE WIRE

Номер: US20180015260A1

Автор: HIEJIMA Katsuhiro, SANO Yoshihiko

Принадлежит:

Provided is a guide wire having a novel structure, with which it is possible to improve production efficiency and to effectively prevent large irregularities from forming on an outer circumferential surface of a core wire. Further provided is a guide wire having a novel structure, with which it is possible to more meticulously set bending rigidity to a distal end portion thereof. In a guide wire having a coil externally mounted about a distal end portion of a core wire, a proximal end portion of the coil is integrally joined to the core wire during formation of the coil. Furthermore, in a guide wire having a coil externally mounted about a distal end portion of a core wire, a cross-sectional shape of a wire that constitutes the coil varies in a lengthwise direction of the coil. 1. A guide wire comprising:a core wire; anda coil externally mounted about a distal end portion of the core wire, whereina proximal end portion of the coil is integrally joined to the core wire during formation of the coil.2. A guide wire comprising:a core wire; anda coil externally mounted about a distal end portion of the core wire, whereina cross-sectional shape of a wire that constitutes the coil varies in a lengthwise direction of the coil.3. The guide wire according to claim 1 , wherein the distal end portion of the core wire about which the coil is externally mounted has a tapered shape.4. The guide wire according to claim 1 , wherein a cross-sectional area of a wire that constitutes the coil is made smaller on a distal end side of the coil than on a proximal end side of the coil.5. The guide wire according to claim 1 , wherein at least a portion of the coil in a lengthwise direction is formed with a wire whose cross-sectional shape has a larger width dimension on a radially outer end thereof than on a radially inner end thereof.6. The guide wire according to claim 1 , wherein an outside diameter dimension of the coil is approximately constant across an entire length thereof.7. The ...

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Номер записи: 66

18-01-2018 дата публикации

GUIDEWIRE DEVICES HAVING SHAPEABLE TIPS AND BYPASS CUTS

Номер: US20180015261A1

Автор: Lippert John A., Snyder Edward J.

Принадлежит:

The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section extends into the tube structure. The tube structure includes a plurality of bypass cuts formed tangentially within the tube structure to increase the flexibility of the tube structure and to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device. 1. A guidewire device having a shapeable tip , the guidewire device comprising:a core having a proximal section and a distal section, the distal section having a smaller diameter than the proximal section; and wherein the tube structure includes a cut pattern which forms a plurality of axially extending beams coupling a plurality of circumferentially extending rings,', 'wherein at least a portion of the cut pattern includes a one-beam section having a one-beam cut pattern which forms a single beam between each adjacent ring within the one-beam section, and, 'a tube structure coupled to the core such that the distal section of the core passes into the tube structure,'}wherein a distal tip of the guidewire device is configured to be manually shapeable.2. The guidewire device of claim 1 , wherein the distal section of the core tapers from the proximal section of the core.3. The guidewire device of claim 1 , further comprising a coil disposed within the tube structure so as to be positioned between an outer surface of the distal section of the core and an inner surface of the tube structure.4. The guidewire device of claim 3 , wherein the coil is configured in size and shape to pack the space between the outer surface of the distal section of the core and the inner surface of the tube such that a curvature of the tube structure is aligned with a curvature of the distal section of the core when the ...

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Номер записи: 67

18-01-2018 дата публикации

GUIDEWIRE DEVICES HAVING DISTALLY EXTENDING COILS AND SHAPEABLE TIPS

Номер: US20180015262A1

Автор: Lippert John A., Snyder Edward J.

Принадлежит:

The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section of the core extends into and distally beyond the tube structure. The portion of the core extending distally beyond the tube forms a shapeable tip. One or more coils also extend distally beyond the tube. The tip is configured to reduce the tendency of resilient forces from the tube structure to disrupt a customized shape of the tip. 1. A guidewire device having a shapeable tip , the guidewire device comprising:a core having a proximal section and a distal section, the distal section having a smaller diameter than the proximal section;a tube structure coupled to the core such that the distal section of the core passes into the tube structure and passes distally beyond the tube structure to form a shapeable tip; andone or more coils encompassing at least a portion of the tip.2. The guidewire device of claim 1 , wherein the distal section of the core tapers from the proximal section of the core.3. The guidewire device of claim 1 , wherein the shapeable tip extends distally beyond the tube a distance of about 0.5 cm to 5 cm claim 1 , or about 1 cm to 3 cm.4. The guidewire device of claim 1 , wherein the one or more coils includes an outer coil coupled to a distal end of the tube structure and extending distally from the tube structure.5. The guidewire device of claim 4 , wherein the outer coil is formed from a material that is more plastically deformable than nitinol.6. The guidewire device of claim 5 , wherein the outer coil is formed from stainless steel.7. The guidewire device of claim 4 , wherein the one or more coils include an inner coil disposed at least partially within the tube structure claim 4 , and wherein the outer coil encompasses at least a portion of the inner coil extending distally beyond ...

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Номер записи: 68

18-01-2018 дата публикации

GUIDEWIRE DEVICES HAVING SHAPEABLE POLYMER TIPS

Номер: US20180015263A1

Автор: Lippert John A., Snyder Edward J.

Принадлежит:

The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section of the core extends into and distally beyond the tube structure. The portion of the core extending distally beyond the tube forms a shapeable tip. A polymer covering encompasses the tip. The tip is configured to reduce the tendency of resilient forces from the tube structure to disrupt a customized shape of the tip. 1. A guidewire device having a shapeable tip , the guidewire device comprising:a core having a proximal section and a distal section, the distal section having a smaller diameter than the proximal section;a tube structure coupled to the core such that the distal section of the core passes into the tube structure and passes distally beyond the tube structure to form a shapeable tip; anda polymer covering encompassing at least a portion of the tip.2. The guidewire device of claim 1 , wherein the distal section of the core tapers from the proximal section of the core.3. The guidewire device of claim 1 , wherein the shapeable tip extends distally beyond the tube a distance of about 0.5 cm to 5 cm claim 1 , or about 1 cm to 3 cm.4. The guidewire device of claim 1 , further comprising a coil partially disposed within the tube structure and partially extending distally beyond the tube structure.5. The guidewire device of claim 4 , wherein the portion of the coil extending distally beyond the tube structure is encompassed by the polymer covering.6. The guidewire device of claim 4 , wherein the portion of the coil disposed within the tube structure encompasses the core and is positioned between an outer surface of the core and an inner surface of the tube structure.7. The guidewire device of claim 4 , wherein the coil is configured in size and shape to pack the space between the core and the tube ...

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Номер записи: 69

18-01-2018 дата публикации

APPARATUS FOR MANUALLY MANIPULATING HOLLOW ORGANS

Номер: US20180015268A1

Автор: Fojtik Shawn P.

Принадлежит:

An apparatus for mechanically manipulating hollow organs within the body of a subject, or an organ manipulation apparatus, includes a manipulation section. The manipulation section may include a substantially two-dimensional element, which may have a width that exceeds a distance across a portion of the interior of a hollow organ within which the manipulation section is to be positioned. The manipulation section is configured to manipulate at least a portion of a hollow organ from within, which may modify at least one of a shape, orientation, or location of at least part of the hollow organ. Methods for manipulating hollow organs are also disclosed, as are operating techniques, such as left atrial ablation, in which the shapes, orientations, and/or locations of hollow organs are manipulated to move the hollow organs away from the site of the medical procedure, reducing the potential for damage to the hollow organs. 1. An apparatus for manipulating an esophagus , comprising: a distal end;', 'a proximal end opposite from the distal end;', 'a proximal portion adjacent to the proximal end, the proximal portion being substantially linear or substantially curvilinear; and', 'a distal portion adjacent to the distal end, a manipulation section of the distal portion having a substantially two-dimensional configuration defined by a series of bends, the substantially two-dimensional configuration having a width of more than 14 mm., 'an elongate element consisting of2. The apparatus of claim 1 , wherein the elongate element has a substantially solid structure.3. The apparatus of claim 1 , wherein the elongate element is radiopaque.4. The apparatus of claim 1 , wherein the elongate element is a wire.5. The apparatus of claim 1 , wherein the elongate element has a diameter of about 0.035 inch to about 0.038 inch.6. The apparatus of claim 1 , wherein the manipulation section is made of a shape memory alloy.7. The apparatus of claim 1 , wherein the series of bends in the distal ...

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Номер записи: 70

21-01-2016 дата публикации

VASCULAR ACCESS SYSTEM AND METHOD OF USE

Номер: US20160015935A1

Автор: Chan Huey, Chan Jason

Принадлежит:

A vascular access system includes a catheter having an inner lumen in communication with an open distal end; a guidewire at least partially positioned in the catheter lumen and extending out the open distal end thereof, respective proximal and distal stops secured to the guidewire; and a centering device slidably mounted on the guidewire such that the centering device may freely within the catheter lumen relative to the guidewire between the proximal and distal stops, wherein the centering device substantially aligns a longitudinal axis of the catheter with a longitudinal axis of the guidewire proximate the centering device.

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Номер записи: 71

21-01-2016 дата публикации

Intravenous Catheter Insertion Device and Method of Use

Номер: US20160015943A1

Автор: Belson Amir, Brommer Robert, Daniel Scott A., HALL Gregory W.

Принадлежит:

A catheter insertion device includes a housing, a needle, a catheter, a guidewire, and an actuator mechanism including a biasing member. The needle is attached to a needle carrier having a proximal end disposed in the housing, the needle having an insertion position and a retraction position with respect to the housing. The catheter is positioned coaxially around the needle. The guidewire has a distal end positioned in a lumen of the needle in a withdrawn position, the guidewire being translatable to an advanced position in which the distal end extends distally from a tip of the needle. The guidewire may include a distal end with a coiled configuration. Actuating the actuator mechanism releases the biasing member to simultaneously translate the needle and the guidewire, the needle from the insertion position to the retraction position, and the guidewire from the advanced position to the withdrawn position.

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Номер записи: 72

21-01-2016 дата публикации

Guide Catheters with Guidewire Deflection Features

Номер: US20160015944A1

Автор: Chow Mina W., Jenkins Thomas R., Kesten Randy J., Liberatore Jessica M.

Принадлежит:

A guide catheter system for use in treating the sinus cavity or Eustachian tube is described. The system includes a guide catheter that has a proximal end and a distal end and an elongate shaft between the proximal end and the distal end and a guidewire. The guide catheter includes a deflection feature on a distal tip of the distal end for deflecting the guidewire at a predetermined angle.

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Номер записи: 73

21-01-2016 дата публикации

Intravenous Catheter Insertion Device and Method of Use

Номер: US20160015945A1

Автор: Amir Belson, Jessica A. Warring, Winfield S. Fisher

Принадлежит: Vascular Pathways Inc

A catheter insertion device includes a housing, a needle, a guide wire, and a catheter disposed coaxially over the needle. The needle has a proximal end in the housing and a distal end extending from a distal end of the housing in an insertion position. The guide wire has a distal portion disposed in a lumen of the needle in a withdrawn position. The guide wire may include a safety tip having a non-coiled configuration in the withdrawn position and a coiled configuration in an advanced position. The catheter insertion device may include a sliding member attached to the guide wire, wherein movement of the sliding member translates the guide wire from the withdrawn position to the advanced position.

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Номер записи: 74

17-01-2019 дата публикации

RELEASABLE CONDUIT CONNECTORS

Номер: US20190015627A1

Автор: Hall John, Mower Wayne

Принадлежит:

Systems and methods of implanting a vascular access technologies and declotting vascular access technologies, such as vascular access assemblies that facilitate hemodialysis, are provided. The methods can include disposing a first tubular conduit within a patient to access a vascular access assembly within the heart of the patient. The first tubular conduit can be coupled to the vascular access assembly such that the first tubular conduit can be decoupled from the vascular access assembly to evacuate a clot within the vascular access assembly, and then recouple the first tubular conduit to the vascular access assembly. 1. A vascular access system , comprising:a first tubular conduit having a central end portion coupled to a body lumen of a patient and a peripheral end portion;a second tubular conduit having a peripheral end portion coupled to a vessel of the patient and a central end portion; anda releasable connector having at least a first portion and a second portion, the first portion coupled to the peripheral end portion of the first tubular conduit and the second portion coupled to the central end portion of the second tubular conduit, such that when the first portion and the second portion of the releasable connector are coupled a flow path extends from the vessel to the body lumen via the first and second tubular conduits.2. The vascular access system of claim 1 , wherein the releasable connector is configured to recouple the first portion and the second portion after decoupling the first portion and the second portion.3. The vascular access system of claim 1 , wherein the central end portion of the first tubular conduit is disposed within the body lumen of the patient.4. The vascular access system of claim 1 , further comprising a third tubular conduit having a first end disposed within another vessel of the patient and a second end claim 1 , wherein the releasable connector further has a third portion coupled to the second end of the third tubular conduit. ...

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Номер записи: 75

21-01-2021 дата публикации

Single handed ent tool

Номер: US20210015344A1

Автор: Assaf Govari, Ilya Sitnitsky, Yehuda Algawi

Принадлежит: Biosense Webster Israel Ltd

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

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Номер записи: 76

15-01-2015 дата публикации

SHAPE MEMORY GUIDE WIRE

Номер: US20150018716A1

Автор: Suri Himanshu

Принадлежит:

A guide wire is described for navigating body channels such as vessels. The guide wire can include an elongated member having a proximal portion and a distal portion, and a fluid passage to transport a fluid from the proximal portion to the distal portion. The distal portion of the elongated member can include a shape memory material with two way memory effect. The shape memory material can have a transition temperature less than a body temperature such that the distal portion has a first shape at the body temperature and a second shape different from the first shape at a temperature less than the transition temperature. 1. A guide wire comprising:an elongated member having a proximal portion and a distal portion; anda fluid passage to transport a fluid from the proximal portion to the distal portion,wherein the distal portion of the elongated member comprises a shape memory material with two way memory effect, the shape memory material having a transition temperature less than a body temperature such that the distal portion has a first shape at the body temperature and a second shape different from the first shape at a temperature less than the transition temperature.2. The guide wire of claim 1 , wherein the shape memory material is nitinol claim 1 , and the transition temperature is A.3. The guide wire of claim 1 , wherein the shape memory material is nitinol claim 1 , and the transition temperature is M.4. The guide wire of claim 1 , wherein the shape memory material is nitinol claim 1 , and the transition temperature is A.5. The guide wire of claim 1 , wherein the transition temperature is between 30° C. and 36° C.6. The guide wire of claim 1 , wherein the distal portion comprises a port extending from the fluid passage to an outer surface of the elongated member.7. The guide wire of claim 5 , wherein the port comprises a plurality of ports along a length of the distal portion.8. The guide wire of claim 1 , further comprising an outer member having a secondary ...

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Номер записи: 77

28-01-2016 дата публикации

System including guidewire for detecting fluid pressure

Номер: US20160022154A1

Автор: David Dipaola, Dong Ik Shin, Joerg SCHULZE-CLEWING, Matthew J. Pollman, Reinhard J. Warnking

Принадлежит: Guided Interventions LLC

A system for detection of blood pressure in a blood vessel includes a guide wire and a LC resonance circuit provided at a distal end of the guide wire. The resonance circuit may be a non-LC resonance circuit responsive to changes in pressure of fluid external to the guide wire such that the resonance circuit has a resonance frequency that varies in accordance with changes in pressure of the external fluid.

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Номер записи: 78

28-01-2016 дата публикации

INTRAVASCULAR DEVICES, SYSTEMS, AND METHODS HAVING A CORE WIRE WITH MULTIPLE FLATTENED SECTIONS

Номер: US20160022215A1

Автор: Henderson Eric, Richardson Mark

Принадлежит:

The present disclosure is directed to intravascular devices, systems, and methods having a core wire with multiple flattened sections. In one aspect, a sensing guide wire is provided. The guide wire includes a first flexible elongate member; a sensing element positioned at a distal portion of the first flexible elongate member; and a second flexible elongate member coupled to the first flexible elongate member such that the second flexible elongate member extends distally from the first flexible elongate member; and wherein a distal portion of the first flexible elongate member includes at least two flattened sections, and wherein the first and second flexible elongate members are coupled along a portion of one of the at least two flattened sections. In other aspects, methods of forming a sensing guide wire are provided. 1. A sensing guide wire , comprising:a first flexible elongate member;a sensing element positioned at a distal portion of the first flexible elongate member; anda second flexible elongate member coupled to the first flexible elongate member such that the second flexible elongate member extends distally from the first flexible elongate member; andwherein a distal portion of the first flexible elongate member includes at least two flattened sections, and wherein the first and second flexible elongate members are coupled along a portion of one of the at least two flattened sections.2. The guide wire of claim 1 , wherein the first flexible elongate member comprises a first core wire.3. The guide wire of claim 1 , wherein the second flexible elongate member comprises a shaping ribbon.4. The guide wire of claim 1 , wherein the second flexible elongate member comprises a second core wire.5. The guide wire of claim 1 , wherein the first and second flexible elongate members are coupled at a distal most flattened section of the first flexible elongate member.6. The guide wire of claim 1 , wherein the first and second flexible elongate members are coupled ...

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Номер записи: 79

28-01-2016 дата публикации

Retrieval and centering device and method with pressure and ultrasound features

Номер: US20160022290A1

Автор: Eric Johnson, Gilbert Laroya, Jeremy Stigall, Joseph LAUINGER, Paul Do

Принадлежит: Individual

The present invention relates generally to devices and methods for retrieving or manipulating objects within a lumen. More specifically, embodiments of the invention relate to devices and methods for retrieving or manipulating medical devices from a body lumen. One embodiment of the present invention provides a novel and improved retrieval snare and method of fabricating and using the same. The snare includes a snare wire, having a distal end and a proximal end, for use in the human anatomy, such as but not limited to blood vessels, pulmonary airways, reproductive anatomy, gastrointestinal anatomy, and organs such as the kidneys or lungs. The device enables a user to capture a foreign object located within the human anatomy, grasp said object in a controlled manner, and retrieve and remove said object from the human anatomy.

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Номер записи: 80

28-01-2016 дата публикации

Retrieval and centering device and method with pressure and ultrasound features

Номер: US20160022291A1

Автор: Eric Johnson, Gilbert Laroya, Jeremy Stigall, Joseph LAUINGER, Paul Do

Принадлежит: Volcano Corp

The present invention relates generally to devices and methods for retrieving or manipulating objects within a lumen. More specifically, embodiments of the invention relate to devices and methods for retrieving or manipulating medical devices from a body lumen. One embodiment of the present invention provides a novel and improved retrieval snare and method of fabricating and using the same. The snare includes a snare wire, having a distal end and a proximal end, for use in the human anatomy, such as but not limited to blood vessels, pulmonary airways, reproductive anatomy, gastrointestinal anatomy, and organs such as the kidneys or lungs. The device enables a user to capture a foreign object located within the human anatomy, grasp said object in a controlled manner, and retrieve and remove said object from the human anatomy.

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Номер записи: 81

28-01-2016 дата публикации

Intravenous Catheter Insertion And Blood Sample Devices And Method Of Use

Номер: US20160022963A1

Автор: Belson Amir

Принадлежит:

A catheter insertion device includes a housing, a needle, a catheter, and a guide wire. The needle has a proximal end positioned in the housing and a distal end extending beyond a distal end of the housing. The catheter is positioned coaxially over the needle, and includes a flexible tube and a catheter hub on a proximal end of the flexible tube. A proximal portion of the flexible tube and the catheter hub are positioned in the housing. the guide wire has a proximal end positioned in the housing and a distal end positioned in a lumen of the needle. The catheter insertion device also includes a handle coupled to the catheter, wherein movement of the handle relative to the housing moves the catheter hub from a position in the housing to a position outside of the housing. 1. A catheter insertion device , comprising:a housing;a needle having a proximal end positioned in the housing and a distal end extending beyond a distal end of the housing;a catheter positioned coaxially over the needle, the catheter comprising a flexible tube and a catheter hub on a proximal end of the flexible tube, wherein a proximal portion of the flexible tube and the catheter hub are positioned in the housing;a guide wire having a proximal end positioned in the housing and a distal end positioned in a lumen of the needle; anda handle coupled to the catheter, wherein movement of the handle relative to the housing moves the catheter hub from a position in the housing to a position outside of the housing.2. The catheter insertion device according to claim 1 , further comprising a guide wire advancement member claim 1 , wherein movement of the guide wire advancement member moves the guide wire relative to the needle.3. The catheter insertion device according to claim 2 , wherein the guide wire advancement member includes a guide wire carrier associated with the guide wire in the housing.4. The catheter insertion device according to claim 2 , wherein movement of the guide wire advancement member is ...

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Номер записи: 82

28-01-2016 дата публикации

SUPPORTIVE BALLOON CATHETER

Номер: US20160022965A1

Автор: Bro Anders, Lentz David Christian, Rasmussen Katrine Birch

Принадлежит:

A supportive balloon catheter which may be used to assist a wire guide in advancing across a lesion which partially or totally occludes an intraluminal passage. The supportive balloon catheter is advanced over the wire guide, close to the location of the lesion. The supportive balloon catheter is then inflated, securing the position of the wire guide in the intraluminal passage. A braid on the catheter may provide additional structural support. The secured catheter restricts the movement of the wire guide advancing across the lesion, preventing kinking or deflection off the surface of the lesion. Once the wire guide has advanced across the lesion, the supportive balloon catheter or a different angioplasty may be used to clear the lesion from the intraluminal passage. 1. A support balloon catheter , comprising:a body having a proximal end and a distal end;a plurality of lumens within the body, including a first lumen for a wire guide, and at least one inflation lumen;an inflatable member located near the distal end of the body having a proximal side, a distal side, and an outer surface which defines an interior region which communicates with an opening in the at least one inflation lumen; anda braid extending proximally along the body from the proximal side of the inflatable member and distally from the opening of the inflation lumen.2. The support balloon catheter of claim 1 , wherein the braid extends distally along the body from the interior region of the inflatable member.3. The support balloon catheter of claim 1 , wherein the braid extends to the proximal end of the body.4. The support balloon catheter of claim 1 , comprising a single inflation lumen within the body claim 1 , wherein the inflation lumen encircles the first lumen.5. The support balloon catheter of claim 1 , comprising two inflation lumens within the body.6. The support balloon catheter of claim 1 , wherein the braid encircles only the first lumen and extends to the distal end of the body.7. The ...

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Номер записи: 83

26-01-2017 дата публикации

ATRAUMATIC MICROPUNCTURE GUIDEWIRE AND GUIDEWIRE EXTENSION

Номер: US20170021140A1

Автор: Sos Thomas A.

Принадлежит:

A guidewire introducable into a bodily lumen having an obstruction therein is provided. An introducer needle is advanced through tissue and into the bodily lumen. A guidewire is advanced through the introducer and into the lumen. The guidewire is advanced further through the lumen until an atraumatic distal tip of the guidewire encounters an obstruction the distal tip cannot pass in a straight forward manner. The distal tip is pressed against the obstruction such that a flexible segment proximal of the distal tip forms a loop distal of the distal tip. The guidewire is advanced further through the lumen such that the loop of the flexible segment is pushed past the obstruction and the distal tip is pulled distally past the obstruction. A greater diameter guidewire extension can be coupled to the back end of the guidewire, providing function as a larger diameter guidewire. 1. A guidewire extension apparatus for coupling to a guidewire , the guidewire extension apparatus comprising:a far end portion having a first diameter matching a diameter of a near end of the guidewire, the far end portion being configured to couple with the near end of the guidewire;a near end portion having a second diameter greater than the first diameter; anda tapered transition portion between the far end and near end portions.2. The guidewire extension apparatus of claim 1 , wherein the far end portion is configured to couple with the near end of the guidewire with a male-female connection.3. The guidewire extension apparatus of claim 2 , wherein the male-female connection comprises a snap-fit claim 2 , an interference fit claim 2 , or a threaded fit.4. The guidewire extension apparatus of claim 1 , wherein the first diameter and the diameter of the near end of the guide wire are both 0.018″.5. The guidewire extension apparatus of claim 4 , wherein the second diameter is 0.035″.6. The guidewire extension apparatus of claim 1 , wherein one or more of the far end portion claim 1 , the near end ...

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Номер записи: 84

25-01-2018 дата публикации

HIGH LOAD STEERABLE SHAFT AND METHOD FOR CARDIAC CATHETER

Номер: US20180021546A1

Автор: McDermott Bernard, Szczepanski Adam

Принадлежит: Creganna Unlimited Company

A tube or skeleton for a steerable catheter includes a cylindrical body structured to permit bending in at least one bending direction and to resist bending in directions transverse to the bending direction. The cylindrical body may include a laser cut metal tube, wires bent and connected to one another, or one or more coiled wires with axial support wires attached to the coil to define one or more bending directions to form bending segments. The skeleton includes axially stiff portions that resist compression when a pull wire is pulled to cause bending movement. The axially stiff portions may include a backbone, an alignment of pivot structures, connected axially extending portions of wire elements, or axially extending support wires or rods. Two or more bending portions may be provided, each with different bending directions. Complex bending shapes may be provided by arranging the segments in rotated positions along the skeleton. 1. A skeleton for a catheter , comprising:a bending portion including a cylindrical body having a first end and a second end, the bending portion being structured to bend in a predetermined bending direction, the bending portion including a plurality of segments arranged sequentially adjacent one another in the bending portion,an axial support structure extending along at least one side of the cylindrical body, the axial support structure being flexible to permit bending in the predetermined bending direction but being resistant to compression in an axial direction; andthe bending portion being configured for receiving a pull wire extending along an inside wall of the cylindrical body in a direction of the predetermined bending direction with the pull wire anchored at the first end and extending beyond the second end for receiving a pulling force, the bending portion being configured to bend in the predetermined direction in response to the pulling force exerted on the pull wire.2. A skeleton as claimed in claim 1 , wherein the bending ...

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Номер записи: 85

25-01-2018 дата публикации

LOW PROFILE INTRODUCER APPARATUS

Номер: US20180021548A1

Автор: Valaie Arman H.

Принадлежит: Cook Medical Technologies LLC

An introducer apparatus includes an outer sleeve and an inner cannula received within the lumen of the outer sleeve. The outer sleeve has a profile such that at least a portion of the distal end of the outer sleeve tapers in the distal direction at an angle not exceeding about 2° relative to a longitudinal axis of the apparatus. The distal open end of the outer sleeve has a wall thickness not exceeding about 0.003 inch. The inner cannula includes a tapered distal end portion. The tapered distal portion of the inner cannula extends distal to the distal open end of the outer sleeve, such that a generally smooth diametrical transition is provided between the outer sleeve tapered portion and the open distal end of the inner cannula. 1. An introducer apparatus , comprising:an outer sleeve having proximal and distal open ends, and having a lumen extending longitudinally therethrough, said outer sleeve having a profile such that at least a portion of said outer sleeve tapers toward said outer sleeve distal end at an angle not exceeding 2° relative to a longitudinal axis of the apparatus, said distal open end of said outer sleeve having a wall thickness not exceeding 0.003 inch; andan inner cannula having proximal and distal open ends, and having a lumen extending longitudinally therethrough, said inner cannula sized to be received within the lumen of said outer sleeve, said inner cannula having a portion that tapers toward the inner cannula distal end, said tapered distal portion of said inner cannula extending distal to the distal open end of said outer sleeve and having a profile such that a generally smooth and gradual diametrical transition is provided from the outer sleeve tapered portion and through said inner cannula open end; andwherein the greatest radial extent of the inner cannula is not greater than the outer diameter of the outer sleeve.2. The introducer apparatus of claim 1 , wherein said outer sleeve has an outer diameter of between 2-10 French.3. The ...

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Номер записи: 86

10-02-2022 дата публикации

Optimized Catheter Sheath for Rx Catheter

Номер: US20220040454A1

Автор: Albert Harold Dunfee, Mark Alan Hamm

Принадлежит: Canon USA Inc

A catheter configured for placement within a bodily lumen, comprises: a catheter sheath defining a first lumen for medical tools; and an exchange segment defining a second lumen for a guidewire. A proximal end of the exchange segment is joined with a distal end of the catheter sheath in a lengthwise direction forming an angle therebetween, such that the second lumen is laterally offset by a distance and angled with respect to the first lumen. When the catheter is placed within a patient's anatomy, the catheter sheath and/or the exchange segment straightens out so that the axis of the second lumen and the axis of the first lumen become substantially parallel to each other. The offset distance between the axes of sheath and exchange segment depends mainly on the diameter of the guidewire to be used, on the diameter of the sheath, and the angle of the junction.

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Номер записи: 87

10-02-2022 дата публикации

DEVICES AND METHODS FOR TREATING A STRICTURE ALONG THE BILIARY AND/OR PANCREATIC TRACT

Номер: US20220040457A1

Автор: DAYTON Peter L., Gessler, III Raymond D., JODA DAVID B., LEMKE KYLE L., MATTESON JASON, OLSON MARK P.

Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

Medical devices and systems for treating a stricture along the biliary and/or pancreatic tract are disclosed. An example medical device may include a guidewire for use along the biliary and/or pancreatic tract. The guidewire may include an elongate core member having a proximal end region and a distal end region. A coil member may be disposed along the distal end region. An actuation member may be coupled to the coil member. The actuation member may be configured to shift the coil member between a first configuration and a compressed configuration. The coil member may be configured to be advanced across a biliary and/or pancreatic stricture when in the compressed configuration. A sleeve may be disposed over the coil member. 1. A guidewire for use along the biliary and/or pancreatic tract , the guidewire comprising:an elongate core member having a proximal end region and a distal end region;a coil member disposed along the distal end region;an actuation member coupled to the coil member, the actuation member being configured to shift the coil member between a first configuration and a compressed configuration;wherein the coil member is configured to be advanced across a biliary and/or pancreatic stricture when in the compressed configuration; anda sleeve disposed over the coil member.2. The guidewire of claim 1 , wherein the actuation member includes a wire.3. The guidewire of claim 1 , wherein the actuation member includes a stranded cable.4. The guidewire of claim 1 , wherein the actuation member is secured to a distal end of the coil member.5. The guidewire of claim 1 , further comprising a handle coupled to the actuation member.6. The guidewire of claim 1 , further comprising a tip member disposed adjacent to a distal end of the coil member.7. The guidewire of claim 1 , wherein the sleeve has a constant outer diameter.8. A method for antegrade stricture crossing along the biliary and/or pancreatic tract claim 1 , the method comprising:advancing a variable ...

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Номер записи: 88

24-01-2019 дата публикации

Endoscopic cannulating devices and methods of use

Номер: US20190022354A1

Автор: Almir Velagic, Azadeh Khanicheh, Isaac Ostrovsky, Michael Barenboym

Принадлежит: Hoya Corp

Embodiments of the present disclosure are directed to cannulating devices and methods for exchanging cannulating devices in an endoscopic procedure. In one implementation, an apparatus for endoscopic operations is described. The apparatus includes a cannulating device to be introduced through an internal lumen of an endoscope via a biopsy port. The cannulating device has an elongated body. The elongated body includes a guidewire lumen configured to receive a guidewire therein, and a slit extending over at least a portion of the length of the elongated body from a distal tip to a proximal position of the elongated body.

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Номер записи: 89

24-01-2019 дата публикации

Intravenous Catheter Insertion and Blood Sample Devices and Method of Use

Номер: US20190022358A1

Автор: Belson Amir

Принадлежит:

A catheter insertion device includes a handle, a needle, a guide wire, and a catheter. The handle may have a proximal region and a distal region. The distal region may include a slot between a top extension and a bottom extension, which extends through a distal end. The needle may have a proximal end positioned in the proximal region and a distal end extending from the distal region. The guide wire may have a proximal end positioned in the proximal region of the handle and a distal end positioned in a lumen of the needle. The catheter may be positioned coaxially over the needle with a proximal end connected to a catheter hub. The catheter hub may be slidably disposed in the slot to enable movement from a first position in the distal region to a second position distal of the distal region. 1. A catheter insertion device , comprising:a handle having a proximal region and a distal region, the distal region including a slot between a top extension and a bottom extension, the slot extending through a distal end of the distal region;a needle having a proximal end positioned in the proximal region of the handle and a distal end extending from the distal region of the handle;a guide wire having a proximal end positioned in the proximal region of the handle and a distal end positioned in a lumen of the needle; anda catheter positioned coaxially over the needle, the catheter having a proximal end connected to a catheter hub, the catheter hub slidably disposed in the slot to enable movement from a first position in the distal region of the handle to a second position distal of the distal region.2. The catheter insertion device according to claim 1 , further comprising a guide wire advancement member coupled to the proximal end of the guidewire claim 1 , wherein movement of the guide wire advancement member moves the guide wire relative to the needle.3. The catheter insertion device according to claim 2 , wherein the guide wire advancement member includes a guide wire actuator ...

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Номер записи: 90

24-01-2019 дата публикации

Medical guide element with diameter transition

Номер: US20190022363A1

Автор: Jeffrey Grayzel, Joseph Grayzel

Принадлежит: Individual

Improved medical guide elements for use with dilators to be inserted into an organ or body structure of a patient, such as the kidney. The guide element includes a proximal segment and a distal segment. The diameter of the distal segment is greater than the diameter of the proximal segment. The change in diameter is abrupt, providing a discrete step transition at a point along the filament which presents a proximally-facing surface on the distal segment. When the proximal segment of the guide element is fully inserted into a dilator having a distal tip adapted for insertion into a patient, the dilator distal tip firmly abuts the proximally-facing end surface of the distal segment. The relative dimensions of the dilator tip and the discrete stepped transition of the guide element provides full shielding or over shielding of the dilator tip, thereby facilitating passage of the dilator tip along the tissue track, through the puncture hole and into the orifice.

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Номер записи: 91

17-04-2014 дата публикации

Low profile introducer apparatus

Номер: US20140107617A1

Автор: Arman H. Valaie

Принадлежит: Cook Medical Technologies LLC

An introducer apparatus includes an outer sleeve and an inner cannula received within the lumen of the outer sleeve. The outer sleeve has a profile such that at least a portion of the distal end of the outer sleeve tapers in the distal direction at an angle not exceeding about 2° relative to a longitudinal axis of the apparatus. The distal open end of the outer sleeve has a wall thickness not exceeding about 0.003 inch, and is sized such that a first wire guide is receivable therethrough. The inner cannula includes a tapered distal end portion. The inner cannula distal open end is sized such that a second wire guide is receivable therethrough, and the first wire guide is not receivable therethrough. The tapered distal portion of the inner cannula extends distal to the distal open end of the outer sleeve, such that a generally smooth diametrical transition is provided between the outer sleeve tapered portion and the open distal end of the inner cannula.

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Номер записи: 92

23-01-2020 дата публикации

Neurovascular Distal Access Support Catheters, Aspiration Catheters, or Device Shafts

Номер: US20200023164A1

Автор: Noelle Bagnall, Quang Tran, Victor Barajas

Принадлежит: eLum Technologies Inc

A catheter or shaft, such as a distal access support or aspiration catheter, is provided that is configured to be advanced at least partially within a patient. The catheter or shaft may include a flexible and hollow shaft including a proximal end and a distal end. The flexible and hollow shaft may include a slotted portion with a plurality of slotted openings, the slotted portion including a first segment with a first pattern of slotted openings and a second segment extending proximally relative the first segment with a second pattern of slotted openings different from the first pattern.

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Номер записи: 93

28-01-2021 дата публикации

IMAGING ASSISTING DIAGNOSTIC DEVICE

Номер: US20210022963A1

Автор: Soliman Alaaeldin

Принадлежит:

An image assisting diagnostic device includes a gastric tube; and a flexible cord removably attached to the gastric tube, wherein the flexible cord includes a first end having a probe tip; and a second end positioned at an opposite end from the first end, wherein the flexible cord includes a series of sections alternating between radiopaque material and substantially radiolucent material. The gastric tube includes a first diameter, and the flexible cord includes a second diameter, wherein the first diameter is different from the second diameter. The first diameter may be larger than the second diameter. The series of sections may be positioned between the first end and the second end of the flexible cord. The series of sections may be positioned closer to the first end than the second end. The probe tip may include radiopaque material. 1. An imaging assisting diagnostic device comprising:a gastric tube; and a probe tip;', 'a handle end positioned opposite to the probe tip; and', 'a plurality of rods spaced apart from one another and positioned in the flexible cord., 'a flexible cord insertable in the gastric tube, wherein the flexible cord comprises2. The device of claim 1 , wherein the gastric tube comprises a nasal gastric tube.3. The device of claim 1 , wherein the gastric tube comprises an oral gastric tube.4. The device of claim 1 , wherein the plurality of rods comprises radiopaque material.5. The device of claim 1 , wherein the flexible cord comprises a section separating the plurality of rods from one another claim 1 , and wherein the section comprises material that is non-detectable by x-ray imaging.6. The device of claim 1 , wherein the probe tip comprises metal.7. The device of claim 1 , wherein the plurality of rods comprise metal.8. The device of claim 5 , wherein the material comprises plastic.9. The device of claim 1 , wherein the flexible cord comprises plastic.10. An image assisting diagnostic device comprising:a gastric tube; and a first end ...

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Номер записи: 94

23-01-2020 дата публикации

BALLOON CATHETER AND METHOD FOR MANUFACTURING MEDICAL ELONGATED BODY

Номер: US20200023171A1

Автор: TARUNAGA Akihiko

Принадлежит: TERUMO KABUSHIKI KAISHA

A balloon catheter and method for manufacturing are disclosed in which the fracturing of the vicinity of a proximal opening portion formed by an inner shaft can be prevented. A distal side of an inner shaft included by a balloon catheter is disposed in a lumen of an outer distal shaft, and a proximal side of the inner shaft is disposed on an outer surface of an outer proximal shaft, and the inner shaft forms a proximal opening portion which opens on an outer surface side of the outer proximal shaft. The inner shaft has a first region and a second region disposed on a proximal side of the first region. The first region is fixed to the outer surface of the outer proximal shaft. The second region is not fixed to the outer surface of the outer proximal shaft. 1. A balloon catheter comprising:an inner shaft;an outer shaft covering a part of the inner shaft;a balloon fixed to the inner shaft and the outer shaft;the outer shaft having an outer distal shaft having a lumen, and an outer proximal shaft fixed to a proximal side of the outer distal shaft and having a lumen communicating with the lumen of the outer distal shaft;a distal side of the inner shaft is disposed in the lumen of the outer distal shaft, a proximal side of the inner shaft is disposed on an outer surface of the outer proximal shaft, and the inner shaft forms a proximal opening portion which opens on an outer surface side of the outer proximal shaft;the inner shaft having a first region and a second region disposed on a proximal side of the first region, in a range from a proximal end of the outer distal shaft disposed on the outer surface of the outer proximal shaft to the proximal opening portion; andwherein the first region is fixed to the outer surface of the outer proximal shaft, and the second region is not fixed to the outer surface of the outer proximal shaft.2. The balloon catheter according to claim 1 , wherein the inner shaft has an inclined portion inclined from the first region toward the ...

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Номер записи: 95

28-01-2021 дата публикации

Catheter With Embedded Core Wires

Номер: US20210023339A1

Автор: Hayes John Michael

Принадлежит:

A kink-resistance catheter has at least a first pair of core wires residing in the catheter body on opposed side of a catheter lumen. The core wires have relatively stiff proximal ends but taper toward their distal ends. The tapered construction provides the core wires with a degree of distal flexibility that helps the catheter advance along a vasculature to a site of interest without kinking. Moreover, the core wires greatly improve the torsional rigidity of the catheter so that rotation of the catheter's proximal end translates into a substantially equivalent rotation at the distal end. If desired, shaping ribbons are provided in the catheter body adjacent to the distal ends of the core wires. The shaping ribbons can be pre-bent before a surgical procedure to help the physician advance the catheter along the vasculature. Finally, the core wires provide the ability to push the catheter through the vasculature without the need for the catheter to go over a guidewire already in-situ in the vasculature. 1. A catheter , comprising:a) a catheter body comprising an outer wall extending longitudinally from a catheter proximal end to a catheter distal end;b) a first catheter lumen extending through the catheter body to the catheter proximal and distal ends; andc) at least a first core wire residing in the catheter body, wherein the first core wire has a first core wire proximal end disposed adjacent to but spaced from the catheter proximal end and a first core wire distal end disposed adjacent to but spaced from the catheter distal end.2. The catheter of claim 1 , wherein the first core wire has at least one first tapered portion intermediate a first proximal cylindrical portion and a first distal cylindrical portion.3. The catheter of claim 1 , wherein the first core wire has at least one first tapered portion intermediate a first proximal cylindrical portion and a first distal ribbon-shaped portion.4. The catheter of claim 3 , wherein a first shaping ribbon resides in ...

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Номер записи: 96

28-01-2021 дата публикации

OVERTUBE

Номер: US20210023359A1

Автор: KOJO Hiroyuki

Принадлежит: OLYMPUS CORPORATION

An embodiment provides an overtube which includes: a plurality of lumens including a lumen with a pliable folded structure at a portion to be inserted into a treatment target; and a grip portion having a rigidity in a radial direction, being easily inserted into the treatment target, allowing a medical device to be easily inserted thereinto, and facilitating administration of a drug. 1. An overtube in which at least two lumens are aligned and which is inserted into a subject , said at least two lumens including a first lumen and a second lumen , the overtube comprising:a first wall portion which forms an anterior side of the second lumen to receive insertion, the anterior side having a folded structure in which the distal side is folded so as to be unfoldable in a radial direction; anda second wall portion which forms a posterior side of the second lumen to be gripped and which is more rigid than the first wall portion in the radial direction, the posterior side including an opening of the second lumen.2. The overtube according to claim 1 , further comprising:a third wall portion which couples the first wall portion and the second wall portion in a longitudinal axis direction, which is more rigid than the first wall portion, and which is softer than the second wall portion.3. The overtube according to claim 2 , wherein a rigidity of the third wall portion smoothly changes a rigidity of an end portion of the first wall portion to a rigidity of an end portion of the second wall portion with variations.4. The overtube according to claim 2 , wherein the third wall portion is in a shape in which the folded structure is unfolded.5. The overtube according to claim 1 , wherein the first wall portion is configured in such a manner that the folded structure is unfolded by an insertion object inserted from the posterior side of the second lumen.6. The overtube according to claim 1 , wherein the wall portions are coupled in such a manner that a portion of an outer peripheral ...

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Номер записи: 97

02-02-2017 дата публикации

METHOD FOR DETECTION OF BLOOD PRESSURE USING PRESSURE SENSING GUIDE WIRE

Номер: US20170027453A1

Автор: Pollman Matthew J., Warnking Reinhard J.

Принадлежит:

A guide wire has a distal end incorporating a coil and a capacitive element that form a resonance circuit with a resonance frequency that is responsive to the pressure of blood external to the guide wire. The resonance frequency can be detected wirelessly, or through two contacts at the proximal wire end, or through one brush contact located inside an insertion sheath and a ground electrode. Wireless detection can be implemented via a second resonance circuit, and electronics for determining the frequency when the first and second circuits are in resonance with each other. 1. The method defined in wherein said sensor circuit further includes a coil provided at a distal end of said guide wire claim 14 , said coil and said capacitor being coupled to each other to form a resonance circuit claim 14 , at least one of said coil and said capacitor being responsive to changes in pressure of fluid external to said guide wire such that said resonance circuit has a resonance frequency that varies in accordance with changes in pressure of the external fluid.2. The method defined in wherein said coil is configured to have an inductance that is variable depending on changes in pressure of fluid external to said guide wire.3. The method defined in wherein said coil is provided with a ferromagnetic core that is movably mounted to said guide wire and partially disposed inside said coil so that changes in pressure of said external fluid results in a shifting of said core relative to said coil claim 2 , thereby varying an inductance of said coil and concomitantly the resonance frequency of said resonance circuit.4. The method defined in wherein said resonance circuit has a movable contact shiftable relative to said coil so that changes in pressure of said external fluid results in shifting of said contact relative to said coil and changing of an active length of said coil claim 2 , thereby varying an inductance of said coil and concomitantly the resonance frequency of said resonance ...

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Номер записи: 98

02-02-2017 дата публикации

Kink-Resistant Guidewire with Improved Rigidity

Номер: US20170028173A1

Автор: Dolgin Michael, Goldman David

Принадлежит:

A guidewire, methods of manufacture, and methods of use is described. The guidewire may include a core having one or more preformed ribs along a portion thereof. The ribs may form a portion of the outer surface of the guidewire or form a texture or shape of the outer surface of the guidewire. The ribs and outer texture of the guidewire can beneficially help the guidewire remain in a desired location in a body and help prevent or limit migration. Forming the ribs on the outer surface of the core may enable the guidewire to have greater rigidity and stiffness. The core may include a reduced diameter region distal of the ribs. The guidewire may include a cap over the reduced diameter region of the core. 1. A guidewire , comprising: one or more ribs formed along a first portion of the core, the first portion of the core having a first diameter, wherein the one or more ribs increase the friction of the outer surface of the guidewire, and', 'a reduced diameter region distal of the first portion having a second diameter less than the first diameter., 'a core, comprising2. The guidewire according to claim 1 , further comprising a cap having the same or a similar diameter to the first diameter claim 1 , the cap positioned over the reduced diameter region of the core such that an edge of the cap abuts the first portion.3. The guidewire according to claim 2 , further comprising a coating on first portion of the core.4. The guidewire according to claim 3 , wherein the coating extends over the cap and forms a smooth claim 3 , unbroken outer surface transition between the first portion of the core and the cap.5. The guidewire according to claim 1 , wherein the cap has a smooth claim 1 , uniform outer surface.6. The guidewire according to claim 1 , wherein the reduced diameter region of the core includes a channel adjacent to the first portion of the core claim 1 , wherein the channel is shaped to mate with a portion of the cap in a snap-fit or threaded connection.7. The guidewire ...

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Номер записи: 99

01-02-2018 дата публикации

Anchoring delivery system and methods

Номер: US20180028205A1

Автор: Joey English, Kirsten Valley, Philip Evard, Scott D. Wilson, Tony M. Chou

Принадлежит: Route 92 Medical Inc

An anchoring delivery system for use in an intracranial artery is provided including a tethering device having an elongated tether and an anchor coupled to a distal end of the tether. The anchor is deployable from a low profile configuration to a higher profile configuration to fix the distal end of the tether at an anchoring site in an anchoring vessel. The tethering device is configured to be used with a guide-sheath having a lumen configured to receive the tether. Related devices, systems, and methods are also described.

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Номер записи: 100