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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 7084. Отображено 100.
26-01-2012 дата публикации

Satiation devices and methods

Номер: US20120022430A1
Автор: Fred E. Silverstein, Nathan Every, Richard A. Glenn, Richard S. Stack, Trevor J. Moody, William S. Eubanks, Jr.
Принадлежит: Barosense Inc

A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.

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Номер записи: 1
16-02-2012 дата публикации

Sealing sheath for prosthetic liner and related methods

Номер: US20120041568A1
Автор: Craig Mackenzie
Принадлежит: Individual

The sealing sheath is for use with a prosthetic socket and associated liner. The sealing sheath includes a textile tube for surrounding at least a portion of a liner that is configured to wear on a residual limb. An annular seal, e.g. an elastomeric or silicone seal, is positioned adjacent a proximal end of the textile tube and continuously extends from an inside of the textile tube configured to be adjacent the liner, through the textile tube to an outside thereof configured to be adjacent an inside of the prosthetic socket. The annular seal may include a first wing on an inside of the textile tube configured to be adjacent the liner, a second wing on an outside of the textile tube configured to be adjacent an inside of the prosthetic socket, and a base connecting lower ends of the first and second wings to define a v-shaped cross-section of the annular seal.

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Номер записи: 2
23-02-2012 дата публикации

Forced deployment sequence handle assembly with independent actuating mechanism

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

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

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Номер записи: 3
26-04-2012 дата публикации

Heart valve prosthesis and method

Номер: US20120101571A1
Автор: Martin Christopher Cook, Stayajit Rohan Jayasinghe, Stefan Schreck, Suku Thambar
Принадлежит: Percutaneous Cardiovascular Solutions Pty Ltd

A heart valve prosthesis ( 100 ) comprises a housing component ( 110 ) and a valve component ( 130 ). The housing component ( 110 ) comprises a housing body ( 111 ) having a housing passage ( 112 ) extending therethrough. The housing body ( 111 ) is configured to be located in, or adjacent to and communicating with, a native valve orifice ( 16 ) of a heart ( 10 ) and to engage structure of the heart ( 10 ) to fix the housing body ( 111 ) in relation to the valve orifice ( 161 ). The housing component ( 111 ) is collapsible for delivery via catheter ( 2 ). The valve component ( 130 ) comprises a valve body ( 131 ) having a valve passage ( 132 ) extending therethrough. The valve body ( 131 ) is configured to be fixed within the housing passage ( 112 ) with the valve passage ( 132 ) extending along the housing passage ( 112 ). One or more flexible valve elements ( 131 ) is/are secured to the valve body and extend across the valve passage ( 132 ) for blocking blood flow in a first direction through the valve passage ( 132 ) whilst allowing blood flow in the opposing direction. The valve component ( 130 ) is collapsible for delivery via catheter ( 2 ) separate to the housing component ( 110 ). An associated method of replacing a failed or failing heart valve utilising the heart valve prosthesis ( 100 ) is also disclosed.

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Номер записи: 4
24-05-2012 дата публикации

Devices and methods for in situ fenestration of a stent-graft at the site of a branch vessel

Номер: US20120130478A1
Автор: Edward E. Shaw
Принадлежит: WL Gore and Associates Inc

The present disclosure includes a stent-graft comprising a first portion that is configured to engage a vessel wall, a second portion that is configured not to engage the vessel wall, and a perfusion window that is configured to permit blood flow. The stent-graft may further comprise a transition portion between the first portion and the second portion, and the perfusion window may be formed in the first portion, the second portion, and/or the transition portion. In a variety of embodiments, one of the first and the second portion may have a smaller diameter than the other. Similarly, in a variety of embodiments, the transition portion may be frustoconically shaped.

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Номер записи: 5
31-05-2012 дата публикации

Two valve caval stent for functional replacement of incompetent tricuspid valve

Номер: US20120136430A1
Автор: Jan Peregrin, Jan Sochman
Принадлежит: Cook Medical Technologies LLC

A two valve caval stent for functional replacement of an incompetent tricuspid valve. The device is designed for minimally invasive percutaneous transcatheter placement and includes two stents connected by a bridge sized to span the right atrium, and two valves anchored by the stents in the superior and inferior vena cavas. Each of the valves optionally has a conical shape divided by supporting struts into three cusps that simulate the action of a native tricuspid valve.

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Номер записи: 6
31-05-2012 дата публикации

Stent Graft System

Номер: US20120136431A1
Автор: Wei-Hui Chen
Принадлежит: Individual

The stent graft system in accordance with the present invention has a trunk, a left subclavian tube, a left common carotid tube and a brachiocephalic tube. The trunk is tubular and expandable and has a descending end, an ascending end, a left subclavian mount, a left common carotid mount and a brachiocephalic mount, for receiving the aforementioned branch tubes that are elastic and self-expandable for respectively connecting the left subclavian artery, the left common carotid artery and the brachiocephalic artery to the trunk. With the above-described structure, the present invention allows fast determination of a suitable trunk and branch tubes for a patient and allows a medical institute to prepare compatible branch tubes and trunks for a composite stent graft system instead of numerous stent grafts of various combinations of differently sized tubular bodies and branches, wherein the former requires significantly less warehousing cost than the latter.

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Номер записи: 7
07-06-2012 дата публикации

Vacuum prosthesis with force sensing member

Номер: US20120143351A1
Автор: Michael E. Tompkins
Принадлежит: Hanger Orthopedic Group Inc

A prosthetic device includes a socket assembly defining a cavity and configured to receive a portion of a residual limb of a user within the cavity, a force sensing member configured to detect forces applied to the residual limb at a plurality of locations about the portion of the residual limb and generate signals based on the detected force, a vacuum system in fluid communication with the socket and configured to control an amount of vacuum applied to the cavity, and a controller coupled to the force sensing member and the vacuum system. The controller is configured to receive the signals from the force sensing member and control operation of the vacuum system during use of the prosthetic device by the user based at least in part on the signals received from the force sensing member.

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Номер записи: 8
05-07-2012 дата публикации

Venous nitinol embolization inserts

Номер: US20120172908A1
Автор: Karl F. Grace
Принадлежит: Cook Inc

A venous nitinol embolization insert for restricting blood flow includes a tubular member and an embolization material attached to the tubular member. The embolization insert provides a predetermined blood flow rate based on experimental data. A method of controlling restriction of blood flow to a targeted vascular site within a patient's body includes selecting an insert that provides a predetermined blood flow rate corresponding to a desired blood flow rate. The embolization insert is selected from a plurality of embolization inserts that provide varied blood flow rates.

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Номер записи: 9
05-07-2012 дата публикации

Dynamically Activated Variable Response Socket with Hydraulic Pump

Номер: US20120173000A1
Автор: Carl A. Caspers
Принадлежит: CARL CASPERS CONSULTING LLC

An articulating prosthetic foot is used for a prosthetic or orthotic artificial limb for amputees having a residual limb. The artificial limb has a pylon and a socket for receiving the residual limb and a vacuum pump connected to the socket. The articulating foot articulates on the pylon and has a hydraulic pump. The hydraulic pump is driven by the articulating motion of the foot and drives the vacuum pump.

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Номер записи: 10
19-07-2012 дата публикации

Anti-obesity devices

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

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

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Номер записи: 11
26-07-2012 дата публикации

Biodegradable endoprostheses and methods for their fabrication

Номер: US20120187606A1
Автор: John Yan, Vinayak Bhat, Xiaoxia Zheng
Принадлежит: Elixir Medical Corp

Biodegradable endoprostheses are formed from amorphous polymers having desirable biodegradation characteristics. The strength of such amorphous polymers is enhanced by annealing to increase crystallinity without substantially increasing the biodegradation time.

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Номер записи: 12
16-08-2012 дата публикации

System and method for delivering a stent to a bifurcated vessel

Номер: US20120209368A1
Автор: Lorcan James Coffey, Randolf Von Oepen, Richard Roy Newhauser, Thomas Michael Rieth, Travis Richard Yribarren
Принадлежит: ABBOTT LABORATORIES

A stent delivery catheter system for accurately positioning a stent in a bifurcated vessel is disclosed. The system includes a catheter having a terminal portion and distal tip that is placed in a main branch of the vessel proximate the bifurcation. A fixed guidewire is attached to distal tip. A port is defined in the terminal portion of the catheter. The port is aligned with an ostium of a side branch of the bifurcated vessel to allow the passage of a stent delivery device, such as a balloon catheter having a stent crimped thereon, into the side branch. Radiopaque bands are positioned on opposite ends of the port. A positioning balloon is included on a surface of the catheter opposite the port and is selectively inflatable to position the radiopaque bands adjacent the side branch ostium. The radiopaque bands are referenced to place the stent proximate the side branch ostium.

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Номер записи: 13
04-10-2012 дата публикации

Stent designs having enhanced radiopacity

Номер: US20120253454A1
Автор: Kieran Costello
Принадлежит: Cook Medical Technologies LLC

The present embodiments provide stents for use in medical procedures. In one embodiment, a stent comprises a first flanged region and a body region. A first diameter of the first flanged region is greater than a second diameter of the body region when the stent is in an expanded deployed state. A proximal junction is formed between the first flanged region and the body region. The proximal junction comprises at least one strut extending from the distal end of the first flanged region in a distal direction towards the proximal end of the body region. A strut at the proximal end of the body region is disposed around at least a portion of the strut of the proximal junction. The overlap between the strut at the proximal end of the body region with the strut of the proximal junction causes an increased radiopaque effect at the proximal junction.

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Номер записи: 14
15-11-2012 дата публикации

Vascular remodeling device

Номер: US20120290067A1
Автор: Anh Cam, Jianlu Ma, Michael Louis LOSORDO, Xiaoling Zhao
Принадлежит: TYCO HEALTHCARE GROUP LP

Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.

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Номер записи: 15
22-11-2012 дата публикации

Thoracic aorta stent graft

Номер: US20120296414A1
Автор: David Ernest Hartley
Принадлежит: Cook Medical Technologies LLC, William A Cook Australia Pty Ltd

A stent graft for placement in the thoracic arch of a patient has a tubular body defining a main lumen therethrough, a plurality of zig zag stents along the tubular body, each of the stents comprising a plurality of struts and bends, the bends being between adjacent struts. At least a first stent and an adjacent second stent having at least a pair of adjacent bends on the first stent aligned with an adjacent pair of bends on the second stent, whereby a first pair of adjacent struts of the first stent and a second pair of adjacent struts of the second adjacent stent together define a diamond shape region. A recess is within the diamond shaped region with the recess extending into the lumen of the tubular body. A fenestration extending into the tubular body within the recess in the diamond shaped region and a graft tube leading from the fenestration into the main lumen. There can be one, two or three diamond shaped regions, recesses, fenestrations and graft tubes Proximally of the or each diamond shaped region the tubular body has a first diameter, distally of the diamond shaped region the tubular body has a second diameter and in the region of the tubular body around the diamond shaped region the tubular body has a third diameter, the first diameter being greater than the second diameter and both the first and second diameter being greater than the third diameter whereby a central region is defined which will allow circumferential blood flow during an operation out of the graft tube into the recess and then into the central region.

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Номер записи: 16
27-12-2012 дата публикации

Devices and methods for treatment of vascular aneurysms

Номер: US20120330343A1
Автор: Brian K. Shiu, Steven W. Kim
Принадлежит: Kim Steven W, Shiu Brian K

The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In a first embodiment of the present invention, a two part prostheses, where one part is an expandable sponge structure and the other part is an expandable tubular mesh structure, is provided. In the first embodiment, the expandable sponge structure is intended to fill the aneurysm cavity to prevent further dilatation of the vessel wall by creating a buffer or barrier between the pressurized pulsating blood flow and the thinning vessel wall. In the first embodiment, the expandable tubular mesh structure is placed across the aneurysm, contacting the inner wall of healthy vessel proximal and distal to the aneurysm.

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Номер записи: 17
21-02-2013 дата публикации

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

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

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

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Номер записи: 18
28-02-2013 дата публикации

Deformable Lumen Support Devices and Methods of Use

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

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

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Номер записи: 19
07-03-2013 дата публикации

Balloon catheters and methods for use

Номер: US20130060316A1
Автор: Archimedes Sanati, Farhad Khosravi
Принадлежит: Ostial Corp

Apparatus and methods are provided for flaring a stent deployed within a branch vessel including an ostium communicating with a main vessel, a first end of the stent extending at least partially from the branch. A catheter is provided that includes a first balloon carried on its distal end, and a second balloon that includes a distal section overlying at least a portion of the first balloon and a proximal section. The catheter distal end is introduced into the main vessel and positioned through the ostium and stent into the branch until the first balloon is disposed within the stent. The first balloon is expanded to anchor the stent, and the second balloon is expanded to flare the first end of the stent. Optionally, the first balloon is expanded further, e.g., to expand the stent within the branch body lumen and/or dilate the lesion.

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Номер записи: 20
18-04-2013 дата публикации

Method and apparatus for treating a patient by intentionally occluding a blood vessel, including method and apparatus for inducing weight loss in a patient by intentionally occluding the celiac artery

Номер: US20130096580A1
Автор: Reynolds M. Delgado, William E. Cohn
Принадлежит: Reynolds M. Delgado, William E. Cohn

A method for inducing weight loss in a patient, the method comprising: intentionally occluding a blood vessel so as to create hypoperfusion in a gastrointestinal organ serviced by the blood vessel, whereby to interfere with normal gastrointestinal function and thereby induce weight loss in a patient.

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Номер записи: 21
09-05-2013 дата публикации

Protuberant Aneurysm Bridging Device and Method of Use

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

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

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Номер записи: 22
16-05-2013 дата публикации

Prosthetic knee joint

Номер: US20130123941A1
Автор: Herman Boiten
Принадлежит: OTTO BOCK HEALTHCARE GMBH

The invention relates to prosthetic knee joint comprising an upper part ( 2 ), which has an upper connecting means ( 3 ), and a lower part ( 4 ), which is pivotably mounted on the upper part ( 2 ) and which has a lower connecting means ( 5 ). A vacuum pump ( 20 ) with an inlet ( 6 ) and an outlet ( 8 ), said pump being driven by the relative movement of the upper part ( 2 ) to the lower part ( 4 ), is associated with the prosthetic knee joint.

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Номер записи: 23
23-05-2013 дата публикации

Branch stent graft deployment and method

Номер: US20130131777A1
Автор: David Ernest Hartley, Eric L.G. Verhoeven, Krasnodar Ivancev, Michael Lawrence-Brown, Wolf Stelter
Принадлежит: Cook Medical Technologies LLC, William A Cook Australia Pty Ltd

A deployment device for deploying a self-expanding fenestrated stent graft. The device includes a fenestrated stent graft retained on an introducer. The introducer includes a main catheter and an auxiliary catheter preloaded within the introducer and extending from distal the distal end of the stent graft, into the lumen of the stent graft and through the fenestration.

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Номер записи: 24
20-06-2013 дата публикации

Occlusive implant delivery devices and associated methods

Номер: US20130152941A1
Автор: Hoa D. Nguyen, Michael S. Mirizzi, Thomas C. Pham
Принадлежит: TYCO HEALTHCARE GROUP LP

The various embodiments simplify the delivery of an occlusive implant to a hollow anatomical structure, such as a fallopian tube. For example, the delivery devices don't need to be retracted manually to deploy the implant. When the devices are activated, stored energy or a powered drive member induces movement of the various components. The operator need only position the distal ends of the devices at the treatment site and then commence deployment by, for example, flipping a switch or changing the position of an activation button. The present embodiments thus increase the efficacy of occlusion procedures by reducing the likelihood of operator error.

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Номер записи: 25
18-07-2013 дата публикации

Suspension liner system with seal

Номер: US20130184836A1
Автор: Egill Egilsson, Grimur Jonsson, Jenny HRAFNSDOTTIR, Sigurdur Asgeirsson
Принадлежит: OSSUR HF

A suspension liner sleeve adapted to provide an interface between a residual limb and a prosthetic socket, and having outer and inner surfaces. The liner sleeve includes an elongate, generally conical body portion formed from at least one material segment defining the liner outer surface. The at least one material segment being at least radially elastically extensible from a relaxed non-extended condition and including proximal and distal end areas. The liner sleeve includes a layer of polymeric material disposed on the at least one material segment and defining the liner sleeve inner surface, and a plurality of resilient seal elements protruding radially from the liner sleeve outer surface. The plurality of seal elements extend around at least one peripheral portion of the liner body portion. A pair of opposed annular recesses may be adjacently located above and below each of the at least one seal element.

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Номер записи: 26
22-08-2013 дата публикации

Medical device delivery system and deployment method

Номер: US20130218257A1
Автор: Alan R. Leewood, Blayne A. Roeder, Brandt M. Davis, David D. Grewe, Jarin Kratzberg, Jichao Sun, Kenneth Haselby, Matthew S. Huser, Steven J. Charlebois, William Kurt Dierking
Принадлежит: Cook Medical Technologies LLC

An aortic stent-graft may include a tubular graft extending from a proximal end to a distal end, the graft comprising a proximal sealing portion and an intermediate portion, wherein a proximal end of the intermediate portion abuts the distal end of the proximal sealing portion. At least one sealing stent may be attached to the proximal sealing portion. A first fenestration window is disposed in the intermediate portion. The first fenestration window has a length determined by the equation L=1.23*D−24 millimeters, where L is the length of the first fenestration window. D is between about 24 millimeters and 45 millimeters.

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Номер записи: 27
29-08-2013 дата публикации

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

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

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

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Номер записи: 28
03-10-2013 дата публикации

Devices and methods for treatment of vascular aneurysms

Номер: US20130261724A1
Автор: Brian K. Shiu, Steven W. Kim
Принадлежит: Brian K. Shiu, Steven W. Kim

The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In a first embodiment of the present invention, a two part prostheses, where one part is an expandable sponge structure and the other part is an expandable tubular mesh structure, is provided. In the first embodiment, the expandable sponge structure is intended to fill the aneurysm cavity to prevent further dilatation of the vessel wall by creating a buffer or barrier between the pressurized pulsating blood flow and the thinning vessel wall. In the first embodiment, the expandable tubular mesh structure is placed across the aneurysm, contacting the inner wall of healthy vessel proximal and distal to the aneurysm.

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Номер записи: 29
17-10-2013 дата публикации

Debranching Great Vessel Stent Graft and Methods for Use

Номер: US20130274853A1
Автор: Patrick W. KELLY
Принадлежит: SANFORD HEALTH

A debranching Great vessel stent graft and methods for its use, where the stent graft comprises, a main body stent graft with a first bifurcation defining a first leg and a second leg, the main body stent graft has distal and proximal ends, the main body stent graft has a diameter at the proximal end in the range from about 18 mm to about 28 mm, the first leg and the second leg each have a diameter in the range from about 12 mm to about 18 mm, the distance from the proximal end of the main body to the distal end of the first leg is in the range from about 30 mm to about 50 mm, and the distance from the proximal end of the main body to the distal end of the second leg is in a range from about 50 mm to about 70 mm.

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Номер записи: 30
05-12-2013 дата публикации

Absorbable Blood Vessel Stent

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

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

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Номер записи: 31
19-12-2013 дата публикации

Method of treating vascular bifurcations

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

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

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Номер записи: 32
26-12-2013 дата публикации

Fenestrated stent grafts

Номер: US20130345785A1
Автор: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
Принадлежит: Cook Medical Technologies LLC

A stent graft ( 1 ) including a tubular wall ( 3 ) with at least one fenestration ( 40 ) including a peripheral ( 37 ) reinforcement around at least part of the fenestration. There can also be a tubular extension ( 15 ). The side arm includes a stent ( 19 ) and a cover ( 17 ) and extends from and is in fluid communication with the fenestration and the stent graft. The stent may be a self expanding stent. The ring and/or tubular extension provides better support and sealing for an extension arm. The fenestration ( 40 ) can be circular or if towards the ends of the stent graft may be in the form of a U-shape ( 50 ) with an open end.

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Номер записи: 33
06-02-2014 дата публикации

Methods of securing a fastener

Номер: US20140039495A1
Автор: Justin E. Beyers, Matthew J. Cremens, Peter M. Bonutti
Принадлежит: P Tech LLC

Embodiments may include an attachable fastener, which may include a bondable material that may be secured to the end of an end effector. Vibration may be tuned to occur at a distal end of the fastener. Accordingly, the fastener may be used to generate heat at a distal point of contact. If the contact surface contains bondable material, that material may be softened. If the fastener includes bondable material at the point of contact, that material may also be softened by heat produced by vibration at the contact area. A hard implant or another polymeric material may function as the anvil.

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Номер записи: 34
13-02-2014 дата публикации

Dual net vascular filtration devices and related systems and methods

Номер: US20140046358A1
Автор: Edward H. Cully, Jeffrey B. Duncan, Michael J. Vonesh
Принадлежит: WL Gore and Associates Inc

According to one aspect of the disclosure, a dual net vascular filtration device comprises a central frame, a proximal filter net attached to a proximal end of the central frame, and a distal filter net attached to a distal end of the central frame. Upon deployment, the distal filter net can be configured to evert into the proximal filter net.

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Номер записи: 35
06-03-2014 дата публикации

Devices and systems for retaining a medical device at a treatment site

Номер: US20140067038A1
Автор: Joel M. Greene, John R. Daugherty
Принадлежит: WL Gore and Associates Inc

In accordance with various embodiments, an anchoring system for a medical device comprises one or more biased hooks. The one or more biased hooks may be formed by any suitable process. Moreover, the one or more biased hooks may be formed from a shape memory material. The anchoring system may be processed in any suitable way to provide a designed or predefined failure mode. This failure mode may be designed to protect or prevent damage to the medical device. The anchoring system may be configured with a plurality of hooks biased in various directions. Moreover, the anchoring system may be configured with a plurality of substantially small hooks configured to engage the anatomy at multiple points. As such, the anchoring systems may be customizable and provide for an implantable medical device with a reduced delivery geometry and/or deployment geometry.

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Номер записи: 36
06-03-2014 дата публикации

Implantable medical devices

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

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

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Номер записи: 37
13-03-2014 дата публикации

Implant deployment apparatus

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

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

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Номер записи: 38
03-04-2014 дата публикации

Satiation devices and methods

Номер: US20140094734A1
Автор: Fred E. Silverstein, Michael S. William, Nathan Every, Richard A. Glenn, Richard S. Stack, Trevor J. Moody, William L. Athas
Принадлежит: Boston Scientific Scimed Inc

A satiation device is described which includes a sheath or liner extending from the proximal or middle stomach to the distal antrum. Food ingested by the patient passes through the sheath or liner, thereby minimizing contact between the ingested food and the stomach. It is believed that over time, reduced contact between food and the stomach will result in decreased Ghrelin production by the patient and a consequent decrease in appetite. In some embodiments, the satiation device may also include a proximal pouch and/or a distal bypass tube.

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Номер записи: 39
07-01-2021 дата публикации

Method and Devices for Intracorporeal Bonding of Implants with Thermal Energy

Номер: US20210000515A1
Автор: Justin E. Beyers, Matthew J. Cremens, Peter M. Bonutti
Принадлежит: P Tech LLC

A system for dynamically controlling a weld profile includes a generator, and end effector, a sensor, and a computer. The generator is configured to supply energy based on the weld profile. The end effector operatively connected to the generator and configured to apply vibratory energy and pressure to an object. The sensor configured to provide an output with respect to the object. The computer configured to monitor the output and change the weld profile of the generator based on the output.

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Номер записи: 40
07-01-2016 дата публикации

PUMP MECHANISM FOR VACUUM SUSPENSION SYSTEM

Номер: US20160000585A1
Автор: SANDAHL David
Принадлежит:

A vacuum suspension system includes a pump mechanism operatively connectable to a prosthetic socket. The pump mechanism has a first member and a second member. First and second fluid chambers are located between the first and second members. The second fluid chamber is fluidly separate from the first fluid chamber, and arranged for fluid communication with the socket. An increase in volume of the first fluid chamber mechanically expands the second fluid chamber, which, in turn, creates a vacuum pressure in the second fluid chamber. 1. A vacuum suspension system comprising: a first member;', 'a second member;', 'a first fluid chamber located between the first and second members;', 'a second fluid chamber located between the first and second members, the second fluid chamber fluidly separate from the first fluid chamber, and arranged for fluid communication with the socket,', 'wherein an increase in volume of the first fluid chamber mechanically expands the second fluid chamber to create a vacuum pressure in the second fluid chamber., 'a pump mechanism operatively connectable to a prosthetic socket, the pump mechanism including2. The system of claim 1 , further comprising a bladder disposed between the first and second members of the pump mechanism claim 1 , the bladder defining the first fluid chamber.3. The system of claim 2 , wherein the bladder is fluidly connectable to a pressure source separate from the pump mechanism claim 2 , the pressure source arranged to selectively introduce pressure into the bladder to increase the volume of the first fluid chamber.4. The system of claim 3 , wherein the pressure source compresses and forces fluid into the first fluid chamber to increase the volume of the first fluid chamber.5. The system of claim 1 , wherein the volume increase in the first fluid chamber mechanically separates the first and second members of the pump mechanism to create the vacuum pressure in the second fluid chamber.6. The system of claim 1 , further ...

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Номер записи: 41
07-01-2016 дата публикации

SELF-EXPANDING BIFURCATED STENT

Номер: US20160000588A1
Автор: Johnson Andrew K.
Принадлежит:

A self-expanding stent is disclosed, the self-expanding stent having a collapsed configuration and an expanded configuration. The self-expanding stent has three stent subunits, each including one or more longitudinally-oriented diamonds and one or more axially-oriented diamonds. The subunits are coupled together at a pivot joint. The longitudinally-oriented diamonds are configured to substantially hold their shape in both the expanded configuration of the stent and the collapsed configuration of the stent. The axially-oriented diamonds are configured to expand from the collapsed configuration to the expanded configuration. Expansion of the axially-oriented diamonds creates angulation between the stent subunits at the pivot joint. Thus, the stent can be inserted into a target location through a tubular catheter, once the stent is no longer constrained by the catheter, it will expand to an angled configuration. 1. A self-expanding stent with a collapsed configuration and an expanded configuration , comprising:a first stent component including one or more longitudinally-oriented diamonds and one or more axially-oriented diamonds;a second stent component including a first arm and a second arm, the first and second arm being coupled together at a pivot joint, the first and second arm including one or more longitudinally-oriented diamonds and one or more axially-oriented diamonds;wherein the longitudinally-oriented diamonds are configured to substantially hold their shape in both the expanded configuration of the stent and the collapsed configuration of the stent and the axially-oriented diamonds are configured to expand from the collapsed configuration to the expanded configuration; andwherein the first stent component is coupled to the second stent component adjacent the pivot joint.2. The self-expanding stent of claim 1 , wherein the pivot joint is created by coupling at least one apex of a longitudinally-oriented diamond of the first arm with at least one apex of a ...

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Номер записи: 42
07-01-2021 дата публикации

VASCULAR REMODELING DEVICE

Номер: US20210000624A1
Автор: CAM Anh, Losordo Michael, MA Jianlu, NGUYEN Luong, SHRIVASTAVA Sanjay, WAINWRIGHT John, ZHAO Xiaoling
Принадлежит:

Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection. 1. An intraluminal device comprising:a proximal section configured to anchor in an afferent vessel;an intermediate section comprising a plurality of struts configured to allow perfusion to efferent vessels;a distal section configured to act as a scaffolding to inhibit herniation of objects out of a neck of a bifurcation aneurysm;wherein each of the plurality of struts is coupled to the distal section at a coupling at a region between a proximal end of the distal section and a distal end of the distal section;wherein the distal section is biased to transition from a compressed state to a radially expanded state when released from a catheter, wherein, while transitioning from the compressed state to the radially expanded state, the distal end moves radially outwardly and proximally relative to the proximal section, and the proximal end of the distal section moves radially inwardly and distally relative to the proximal section.2. The intraluminal device of claim 1 , wherein claim 1 , while in the expanded state claim 1 , the proximal end and the distal end are substantially ...

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Номер записи: 43
04-01-2018 дата публикации

REPLACEMENT MITRAL VALVES

Номер: US20180000580A1
Автор: GRANADA Juan F., Gregg Peter, NOE Spencer, WALLACE Dan
Принадлежит:

A prosthetic mitral valve includes an anchor assembly, an annular strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The annular strut frame is disposed radially within the anchor assembly. An atrial end of the annular strut frame is attached to the anchor assembly such that a ventricular end of the annular strut frame is spaced away from the anchor assembly. 1. A prosthetic mitral valve comprising:an anchor assembly comprising a proximal anchor, a distal anchor, and a central portion therebetween;an annular strut frame disposed radially within the anchor assembly, wherein the annular strut frame comprises a cylindrical ventricular portion and flared atrial portion, the flared atrial portion flaring radially outwards relative to the cylindrical ventricular portion; anda plurality of replacement leaflets secured to the strut frame.2. The prosthetic mitral valve of claim 1 , wherein the atrial and ventricular anchors are flared radially outwards relative to the central portion claim 1 , and wherein an angle of the flared atrial portion substantially conforms to an angle of the flared atrial anchor.3. The prosthetic mitral valve of claim 1 , wherein an angle of the flared atrial portion is between 60 and 65 degrees relative to a central longitudinal axis of the cylindrical ventricular portion.4. The prosthetic mitral valve of claim 1 , wherein an atrial end of the strut frame is attached to the anchor assembly.5. The prosthetic mitral valve of claim 4 , wherein the cylindrical ventricular portion is spaced away from the anchor assembly.6. The prosthetic mitral valve of claim 4 , wherein the atrial end of the strut frame is attached to the anchor assembly with a plurality of rivets.7. The prosthetic mitral valve of claim 1 , wherein the prosthetic mitral valve is configured to self-expand from a constrained configuration to an ...

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Номер записи: 44
05-01-2017 дата публикации

Vascular Repair Devices

Номер: US20170000600A1
Автор: Arbefeuille Samuel, Berra Humberto A., Ouellette Gerry
Принадлежит:

A vascular repair device includes a tubular graft body and a structural framework having at least two stents. A first stent of the stents is connected to the tubular graft body along an entirety of the first stent and a second of the stents includes a periodically changing shape that defines proximal apices having a first radii of curvature and distal apices having a second radii of curvature that is less than the first radii of curvature. The second stent is connected to the tubular graft body at the distal apices. 1. A vascular repair device comprising:a) a tubular graft body having a proximal end, a distal end, an interior surface and a longitudinal axis; and i) a first stent of the stents having first proximal apices and first apices each adjacent pair of first proximal apices and first distal apices defined by a single strut connecting respective adjacent ones of the first proximal and first distal apices, the first stent connected to the proximal end of the tubular graft body; and', 'ii) a second stent of the stents having second proximal apices and second distal apices, each adjacent pair of second proximal apices and second distal apices defined by a single strut, the second proximal apices having a first radius of curvature and second distal apices having a second radius of curvature that is less than the first radius of curvature, wherein the second stent is a bare stent connected to the proximal end of the tubular graft body at the second distal apices of the second stent and the second distal apices of the second stent nested between the struts and the first proximal apices of the first stent., 'b) a structural framework having at least two stents, wherein2. The vascular repair device of claim 1 , wherein the first stent is connected to the interior surface of the tubular graft body.3. The vascular repair device of claim 1 , wherein the distal apices of the second stent are connected to the interior of the tubular graft body.4. The vascular repair device ...

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Номер записи: 45
03-01-2019 дата публикации

DEPLOYMENT OF MULTIPLE BILIARY STENTS

Номер: US20190000652A1
Автор: BARAK Ronny, Einav Elad
Принадлежит: ENDO GI MEDICAL LTD.

Apparatus () is provided for use with a guidewire (). The apparatus includes a guide tube () having a guidewire-engaging portion () and a slit () extending proximally along a wall of the guide tube, from a distal end () of the tube, a proximal end () of the slit being located distally to a proximal end () of the tube. A first stent () surrounds the tube and is advanceable together with the tube into a lumen of a subject, the first stent being slidably advanceable off the distal end of the tube; and a second stent (), proximal to the first stent, surrounding a proximal portion of the tube, and advanceable off the distal end of the tube into the lumen, and placed alongside the first stent subsequently to advancement of the first stent off the distal end of the tube. Other applications are also described. 178-. (canceled)79. A method , comprising:using apparatus including:a guide tube shaped to define (a) a guidewire-engaging portion at a distal portion of the guide tube, and (b) a slit extending proximally along a wall of the guide tube, from a distal end of the guide tube, a proximal end of the slit being located distally to a proximal end of the guide tube,a first stent surrounding the distal portion of the guide tube, anda second stent, proximal to the first stent, surrounding a proximal portion of the guide tube; threading a guidewire through the guide tube, such that, following the threading:(a) the guidewire enters a lumen of the guide tube from a distal-end opening of the guide tube,(b) the guidewire passes through the guidewire-engaging portion of the guide tube,(c) the first stent is constrained from distal motion past the guidewire-engaging portion of the guide tube, due to the guidewire passing through the guidewire-engaging portion,(d) the guidewire passes into the lumen of the guide tube through the slit, and(e) the first stent is constrained from proximal motion past the proximal end of the slit.80. The method according to claim 79 , further comprising: ...

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Номер записи: 46
04-01-2018 дата публикации

DELIVERY DEVICE AND METHOD OF DELIVERY

Номер: US20180000619A1
Автор: Horzewski Michael, Longo Michael
Принадлежит:

A delivery device can provide sequential delivery of a plurality of intraluminal devices held in a compressed state on the delivery device. Delivery platforms on the delivery device can hold an intraluminal device in a compressed position and be positioned between pusher bands that may also be radiopaque markers. A post deployment dilation device can be included. The post deployment dilation device can be a plurality of expansion filaments, a bellows, or a balloon. An intravascular device deployment method can include allowing a self-expanding intravascular device to expand, aligning the post deployment dilation device under the intravascular device, and causing the post deployment dilation device to expand radially to push outward on the intravascular device. 1. A delivery device comprising:an inner shaft configured to receive a self-expanding intraluminal device for deployment from the delivery device into a vessel;an outer sheath positioned about at least a portion of the inner shaft and movable with respect to at least a portion of the inner shaft, the outer sheath having a pre-deployment position in which the self-expanding intraluminal device is at least substantially covered and at least one delivery position in which the self-expanding intraluminal device is uncovered to release the self-expanding intraluminal device from the delivery device; and a balloon attached to the outer sheath of the delivery device, the balloon having a pre-actuated configuration having a pre-deployment diameter and an actuated configuration having a deployment diameter larger than the pre-deployment diameter;', 'at least one inflation fluid lumen in fluid communication with the balloon and extending along at least a portion of the outer sheath;, 'a post deployment dilation device comprisingwherein the post deployment dilation device is configured to apply a radial force to an inner surface of the self-expanding intraluminal device after deployment of the self-expanding intraluminal ...

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Номер записи: 47
05-01-2017 дата публикации

ENDOVASCULAR IMPLANT

Номер: US20170000629A1
Автор: Giasolli Robert, Schneider Peter
Принадлежит:

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent. 1. An intravascular tack , comprising:a self expandable tubular body, having a proximal end, a distal end and a central lumen extending therethrough, the body comprising a plurality of metal struts and having a length of no more than about 15 mm;wherein the tubular body is radially expandable through a range of diameters which range exceeds 3 mm and the change in radial force upon expansion is no more than about 2.5 N at any point in the range.2. An intravascular tack as in claim 1 , wherein the radial force upon expansion changes no more than about 1.5 N throughout the range.3. An intravascular tack as in claim 1 , wherein the range is from about 3 mm to about 6 mm.4. An intravascular tack as in claim 3 , wherein the radial force at both 3 mm and 6 mm is less than 2.0 N.57.-. (canceled)8. A formed in situ intravascular construct claim 3 , comprising a plurality of at least three intravascular tacks each having a length of no more than about 8 mm and spaced apart from an adjacent tack by at least about 2 mm claim 3 , each tack having a radial expansion force of no more than about 4 N.9. An intravascular construct as in claim 8 , comprising at least 5 intravascular tacks.10. An intravascular construct as in claim 8 , wherein each tack has a length of no ...

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Номер записи: 48
05-01-2017 дата публикации

METHODS AND SYSTEMS FOR INCREASING A DENSITY OF A REGION OF A VASCULAR DEVICE

Номер: US20170000631A1
Автор: Kusleika Rich
Принадлежит:

A vascular device is provided that includes a mesh structure formed of a plurality of spaced members. The structure has (i) a first, collapsed configuration, (ii) a second, expanded configuration, and (iii) a density of the plurality of members. The vascular device further includes an elastic member disposed along a region of the structure, the region having a proximal end and a distal end. The elastic member is configured to increase the density within the region by drawing at least one of the proximal and distal ends of the region toward the other of the proximal and distal ends when the structure is in the second configuration. 1. A vascular device , comprising:a mesh structure formed of a plurality of spaced members, the structure having (i) a first, collapsed configuration, (ii) a second, expanded configuration, and (iii) a density of the plurality of members; andan elastic film disposed along a region of the structure, the region having a proximal end and a distal end, wherein the elastic film is configured to increase the density within the region by drawing at least one of the proximal and distal ends of the region toward the other of the proximal and distal ends when the structure is in the second configuration.2. The vascular device of claim 1 , wherein the elastic film is disposed on at least one of an inner surface and an outer surface of the structure.3. The vascular device of claim 1 , wherein the elastic film comprises a plurality of pores configured to permit blood to flow therethrough.4. The vascular device of claim 3 , wherein the pores are sized between about 70-200 microns.5. The vascular device of claim 1 , wherein the elastic film is configured to decrease the length of the region by about 10%-40% in the second configuration.6. The vascular device of claim 1 , wherein the elastic film is configured to allow tissue overgrowth thereon.7. The vascular device of claim 1 , wherein the elastic film forms a substantially cylindrical shape.8. The ...

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Номер записи: 49
05-01-2017 дата публикации

Anastomotic devices and methods

Номер: US20170000939A1
Автор: Edward H. Cully, Jeffrey B. Duncan, Karan B. Sangha
Принадлежит: WL Gore and Associates Inc

Exemplary embodiments comprise AV fistulas and other anastomotic devices for creating new or reinforcing existing side-branch vessels, and/or bridging neighboring vessels together. An exemplary embodiment may comprise a sidewall port, such as a flanged sidewall port, and/or flow frame design, such as a partially bare, flexible stent or a whisk, for purposes of creating a transmural flow. Another exemplary embodiment may comprise a compliant vessel support to aid in the transition from device to vessel and/or vessel to device, and to promote vessel dilation.

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Номер записи: 50
13-01-2022 дата публикации

OVAL STENT

Номер: US20220008188A1
Автор: Karapetian Emil
Принадлежит:

A stent comprises an elastically deformable stent wall forming a lumen extending between a first opening and a second opening of the stent. The stent wall is configured to be percutaneously delivered into a blood vessel, secure to a blood vessel wall of a blood vessel, and radially expand from a first configuration to a second configuration within the blood vessel into direct contact with the blood vessel wall. The first configuration defines a first major dimension, a first minor dimension, a first cross-sectional area, a first cross-sectional shape, and a first perimeter of the stent wall. The second configuration defines a second major dimension, a second minor dimension that is greater than the first minor dimension, a second cross-sectional area that is greater than the first cross-sectional area, and the first perimeter of the stent wall. 1. A stent comprising: be percutaneously delivered into a blood vessel;', 'secure to a blood vessel wall of a blood vessel; and', 'radially expand from a first configuration to a second configuration within the blood vessel into direct contact with the blood vessel wall, the first configuration defining a first major dimension, a first minor dimension, a first cross-sectional area, a first cross-sectional shape, and a first perimeter of the stent wall, and the second configuration defining a second major dimension, a second minor dimension that is greater than the first minor dimension, a second cross-sectional area that is greater than the first cross-sectional area, and the first perimeter of the stent wall., 'an elastically deformable stent wall forming a lumen extending between a first opening and a second opening of the stent, the stent wall being configured to2. The stent of claim 1 , wherein the first major dimension is greater than the second major dimension.3. The stent of claim 1 , wherein the first cross-sectional shape comprises an oval shape.4. The stent of claim 1 , wherein the first cross-sectional shape ...

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Номер записи: 51
01-01-2015 дата публикации

ENDOVASCULAR PROSTHESIS

Номер: US20150005868A1
Автор: Cho Chika, Koskas Fabien, Molina Julien
Принадлежит: ASSISTANCE PUBLIQUE HOPITAUX DE PARIS

The endovascular prosthesis includes a first expandable framework and a first jacket for the first framework, the first framework and the first jacket forming a first channel when the first framework is in the expanded state. The first framework and the first jacket each have at least one opening, which openings are arranged substantially opposite one another and through which a sleeve is received, the sleeve having a first end and a second end, the perimeter of the first end being attached to the perimeter of the opening of the first jacket, while the second end extends inside the first channel. 1102104100110112200202204114100. Endovascular prosthesis comprising a first expandable framework () and a first jacket () for said first framework , said first framework and said first jacket forming a first channel () when the first framework is in the expanded state , characterised in that the first framework and the first jacket each have at least one opening ( , ) , which openings are arranged substantially opposite one another and through which a sleeve () is received , said sleeve having a first end () and a second end () , the perimeter of said first end being attached to the perimeter () of the opening of the first jacket , while said second end extends inside said first channel ().2102104200202204114100. Endovascular prosthesis according to claim 1 , characterised in that the first expandable framework () and the first jacket () each have a plurality of openings which are arranged substantially opposite one another and through which a sleeve () is received claim 1 , each sleeve having a first end () and a second end () claim 1 , each perimeter of the first ends being attached to each perimeter () of the openings of the first jacket claim 1 , while each second end extends inside said first channel ().3302304300300100200200300. Endovascular prosthesis according to claim 1 , characterised in that it further comprises a second expandable framework () and a second ...

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Номер записи: 52
20-01-2022 дата публикации

STENT INCLUDING ANCHORING MEMBERS

Номер: US20220015890A1
Автор: Arnholt Devon N., Boden Mark W., Cahan Mitchell, Decio Danilo B., Kringle Mark, Macomber Christopher, Nazarey Pradeep P., Shreeve David
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A method for treating an intestine with an expandable scaffolding expanded within the intestine. After placing the expandable scaffolding at a target location, such as across a fistula, the first and second end portions of the expandable scaffolding are radially expanded such that the first and second end portions contact an inner surface of the intestine on opposing sides of the fistula, anchoring the first and second end portions to the intestine. Radially expanding the first and second end portions foreshortens the medial portion along the longitudinal axis such that the first and second end portions are drawn closer together along the longitudinal axis as the medial portion foreshortens to close the fistula. 1. A method for treating a body lumen , the method comprising: 'a first end portion, a second end portion and a medial portion extending along a longitudinal axis of the scaffold, the medial portion positioned between the first end portion and the second end portion, the expandable scaffold configured to shift from a contracted state to an expanded state; and', 'advancing an expandable scaffold to a target site within the body lumen, the expandable scaffold includingradially expanding the first and second end portions from the contracted state to the expanded state such that the first and second end portions contact an inner surface of the body lumen in the expanded state;anchoring the first and second end portions to the body lumen with one or more anchoring members to prevent the first and second end portions from shifting along the inner surface of the body lumen;wherein radially expanding the first and second end portions foreshortens the medial portion along the longitudinal axis such that the first and second end portions are drawn closer together along the longitudinal axis as the medial portion foreshortens.2. The method of claim 1 , wherein the medial portion is spaced away from the inner surface of the body lumen when in the expanded state.3. The ...

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Номер записи: 53
14-01-2016 дата публикации

SYSTEMS AND METHODS FOR PROSTHETIC SUSPENSION SYSTEM

Номер: US20160008148A1
Автор: Tompkins Michael E.
Принадлежит: Hanger, Inc.

A prosthetic device includes an inner socket assembly including an upper interface member having a generally cylindrical outer periphery, the outer periphery defining a diameter and a length, the diameter being substantially greater than the length, and an outer socket assembly including a lower interface member having a recess correspondingly-shaped to the outer periphery of the upper interface member. At least a portion of the upper interface member is received within the recess of the lower interface member to secure the inner socket assembly to the outer socket assembly. 1. A prosthetic device comprising:an outer socket;an inner liner configured to fit around a residual limb of a user and configured to fit into the outer socket, the inner liner including an upper interface member integrated with the inner liner;a lower interface member coupled to an inner surface of the outer socket and configured to interface with the upper interface member to releasably secure the inner liner to the outer socket; anda pylon coupled to an outer surface of the outer socket, wherein the outer surface is opposite the inner surface.2. The prosthetic device of claim 1 , wherein the upper interface member is molded or cast with a bottom portion of the inner liner3. The prosthetic device of claim 1 , wherein the pylon is coupled to the outer socket by one or more fasteners that extend through the pylon claim 1 , through the outer socket claim 1 , and into the lower interface member.4. The prosthetic device of claim 1 , wherein one of the upper interface member or the lower interface member comprises a generally cylindrical outer surface having a diameter that is substantially greater than its length as measured along a longitudinal axis of the prosthetic device.5. The prosthetic device of claim 4 , wherein the other of the upper interface member or the lower interface member comprises a receptacle having a generally cylindrical recess claim 4 , the generally cylindrical recess sized ...

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Номер записи: 54
14-01-2016 дата публикации

INTRAVASCULAR STENT WITH HELICAL STRUTS AND SPECIFIC CROSS-SECTIONAL SHAPES

Номер: US20160008149A1
Автор: CHEN Hsin, Hsiao Hao-Ming
Принадлежит:

The present invention relates to a stent, comprising: a plurality of radially-expandable rings arranged along a longitudinal axis, wherein each radially-expandable ring may comprise a plurality of bar arms and a plurality of crowns, and adjacent crowns are connected by the bar arms therebetween; and a plurality of connectors between the radially-expandable rings for connecting such radially-expandable rings; wherein a cross-sectional shape of the bar arms, the crowns or the connectors may comprise helical structures, specific cross-sectional shapes, or a combination thereof. New stent manufacturing techniques, such as the 3D additive printing, could be used for making these proposed stents feasible. 1. A stent , comprising:a plurality of radially-expandable rings arranged along a longitudinal axis, wherein each of the radially-expandable rings comprises a plurality of bar arms and a plurality of crowns, wherein adjacent crowns are connected by the bar arms therebetween; anda plurality of connectors disposed between the radially-expandable rings for connecting the radially-expandable rings;wherein a cross-sectional shape of at least one of the bar arms, the crowns, or the connectors is selected from the group of circular, oval, triangular, rectangular, hexagonal, octagonal, polygonal, and airfoil shapes, or any combination thereof.2. The stent as claimed in claim 1 , wherein at least one of the bar arms claim 1 , the crowns claim 1 , and the connectors comprises a helical structure.3. The stent as claimed in claim 2 , wherein the connectors comprise the helical structures.4. The stent as claimed in claim 2 , wherein the bar arms comprise the helical structures.5. The stent as claimed in claim 3 , wherein the bar arms and the connectors comprise the helical structures.6. The stent as claimed in claim 5 , wherein the bar arms claim 5 , the crowns claim 5 , and the connectors comprise the helical structures.7. The stent as claimed in claim 2 , wherein the helical ...

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Номер записи: 55
14-01-2016 дата публикации

STENT AND METHOD FOR MANUFACTURING THEREOF

Номер: US20160008150A1
Автор: Welch Tre Raymond
Принадлежит:

According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane. 1. A non-metallic bifurcated stent comprising: an element forming a first plurality of spaced-apart central lobes as the element extends from a proximal end of the stent component to a distal end of the stent component, wherein each of the first plurality of central lobes are formed by a coiled rotation of the element,', 'a second plurality of spaced-apart central lobes formed by the element as the element returns from the distal end to the proximal end of the stent component, wherein each of the second plurality of central lobes are formed by a coiled rotation of the element, wherein the first plurality of central lobes are formed in a non-parallel winding configuration relative to the second plurality of central lobes, and', 'at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes;, 'a primary stent component and a secondary stent component, wherein each of the primary stent component and the secondary stent component has a furled small-diameter state and an expanded large diameter state, and wherein each of the primary stent component and the secondary stent component comprises, in the furled small-diameter statewherein said primary stent component has a first portion, a second portion and a medial portion located between the first ...

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Номер записи: 56
11-01-2018 дата публикации

PROSTHESIS HAVING PIVOTING FENESTRATION

Номер: US20180008397A1
Автор: Hartley David E., Huser Matthew S., Roeder Blayne A.
Принадлежит:

The present disclosure relates to an endoluminal prosthesis, such as a stent graft that includes one or more fenestrations to accommodate endovascular disease, such as an aneurysm in cases where one or more side branches is involved. In one aspect, the prosthesis includes fenestrations that are pivotable to accommodate the dynamic geometry of the aortic branches. 1. A prosthesis , comprising:a graft having a tubular body and a surface comprising a first biocompatible material;at least one fenestration having a diameter extending from a sidewall of the graft;a first perimeter having a first diameter and surrounding the fenestration;a band of flexible material attached to and surrounding the first perimeter and having a flexible frame;a second perimeter attached to and surrounding the band of flexible material and having a second diameter greater than the first perimeter diameter;where the band of material has a first diameter substantially the same as the first perimeter diameter and a second diameter substantially the same as the diameter of the second perimeter, and where the diameter of the band of material decreases in a direction away from the surface of the graft from the second perimeter to the first perimeter; andwhere each fenestration is pivotable in any direction away from an axis perpendicular to a longitudinal axis of the prosthesis.2. The prosthesis of claim 1 , wherein the flexible frame includes a plurality of support units.3. The prosthesis of claim 1 , wherein the band of material has a concave or convex orientation relative to the surface of the graft.4615. The prosthesis of claim 1 , wherein the first diameter of the band is about mm and the second diameter of the band is about mm.5. The prosthesis of claim 5 , wherein the first perimeter claim 5 , the band of material claim 5 , and the second perimeter form a hemispherical shape and are substantially concentric when positioned in the same plane.6. A prosthesis for treatment of a main vessel ...

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Номер записи: 57
14-01-2021 дата публикации

STENTS AND METHODS FOR MANAGING PASSAGE OF MATERIAL THROUGH A BODY LUMEN

Номер: US20210007869A1
Автор: "OReilly Susanne", CRAWFORD Richard, Gilmartin Gary, McNern Louis
Принадлежит:

The present disclosure relates generally to stents and methods for managing passage of material through a body lumen. In some embodiments, a medical stent may include a stent body defined by a hollow tubular elongate structure extending along a central axis, the stent body including a first portion and a second portion. The medical stent may further include a control region between the first and second portions, wherein in a first configuration the hollow tubular elongate structure of the control region is in a closed, twisted configuration, and wherein in a second configuration the hollow tubular elongate structure of the control region is in an open, expanded configuration. 16. A medical stent , comprising:a stent body defined by a hollow tubular elongate structure extending along a central axis, the stent body including a first portion and a second portion; anda control region between the first and second portions, wherein in a first configuration the hollow tubular elongate structure of the control region is in a closed, twisted configuration, and wherein in a second configuration the hollow tubular elongate structure of the control region is in an open, expanded configuration.21. The medical stent of claim , wherein the control region is connected at a first end to the first portion and at a second end to the second portion.31. The medical stent of claim , further comprising a covering formed along the hollow tubular elongate structure.4. The medical stent of claim 3 , wherein the covering is made from silicone.51. The medical stent of claim claim 3 , wherein in the first configuration claim 3 , the second portion is rotated more than 180 degrees relative to the first portion.61. The medical stent of claim claim 3 , wherein in the first configuration the hollow tubular elongate structure of the control region is rotated about the central axis by approximately 360 degrees.71. The medical stent of claim claim 3 , wherein the control region comprises a first ...

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Номер записи: 58
11-01-2018 дата публикации

PUMP MECHANISM FOR VACUUM SUSPENSION SYSTEM

Номер: US20180008436A1
Автор: SANDAHL David
Принадлежит:

A vacuum suspension system includes a pump mechanism operatively connectable to a prosthetic socket. The pump mechanism has a first member and a second member. An inflatable bladder is disposed between the first and second members. A fluid chamber is located between the first and second members and fluidly separate from the inflatable bladder. Inflation of the inflatable bladder mechanically separates the first and second parts to create a vacuum pressure in the fluid chamber. 1. A vacuum suspension system comprising: a first member;', 'a second member;', 'an inflatable bladder disposed between the first and second members; and', 'a fluid chamber located between the first and second members and fluidly separate from the inflatable bladder, wherein inflation of the inflatable bladder mechanically separates the first and second parts to create a vacuum pressure in the fluid chamber., 'a pump mechanism operatively connectable to a prosthetic socket, the pump mechanism including2. The system of claim 1 , further comprising a resilient member connecting the first and second members claim 1 , the resilient member arranged to bias the fluid chamber toward a zero or near zero volume.3. The system of claim 2 , wherein the resilient member comprises a u-shaped member including a first arm connected to the first part and a second arm connected to the second part.4. The system of claim 11 , wherein the first member defines a locking feature and the resilient member defines a corresponding detent arranged to selectively lock in the locking feature.5. The system of claim 1 , further comprising a membrane having an outer edge portion secured to the first member of the pump mechanism claim 1 , the fluid chamber having a volume defined between the first member and the membrane.6. The system of claim 5 , wherein the membrane deforms to vary the volume of the fluid chamber.7. The system of claim 5 , wherein the inflation of the inflatable bladder forces the first member and a portion ...

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Номер записи: 59
11-01-2018 дата публикации

Stent

Номер: US20180008439A9
Автор: Gregory M. Cruise, Heather GRIFFITH, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong, Tai D. Tieu
Принадлежит: MicroVention Inc

In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.

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Номер записи: 60
11-01-2018 дата публикации

BRANCH ENDOGRAFT DELIVERY

Номер: US20180008442A1
Автор: Douglas Myles
Принадлежит: Red Vascular Technologies, LLC

A system for treating disease involving branching vessels of a mammal system can include a main graft assembly (i) having a lumen permitting fluid flow therethrough, and (ii) configured to expand within a first vessel of a mammal; and a branch graft assembly including a branch cover (i) having a cover lumen permitting fluid flow therethrough; and (ii) configured to expand within a branch vessel that branches from the first vessel. The branch graft assembly may also include an expandable branch stent extending within the cover lumen. The branch graft assembly may further include a branch sheath (i) extending between the branch stent and the cover lumen, and (ii) constraining radial expansion of the branch stent within the cover lumen. 1. (canceled)2. A graft system for treating branching blood vessels of a mammal , said branch assembly comprising:a main graft assembly including a main stent with a main stent lumen and a main cover with a main cover lumen; anda branch graft assembly including a branch stent with a branch stent lumen and a branch cover with a branch cover lumen, wherein the branch cover is coupled with the main cover;a branch sheath (i) positioned fully over the expandable branch stent and beneath the branch cover, and (ii) constraining radial expansion of the branch stent, wherein the expandable branch stent is attached to the branch cover along at least a part of a perimeter of the branch cover in order to inhibit distal movement of the branch sheath within the branch cover lumen while said branch graft assembly is being advanced through a first vessel and into a branch vessel;an outer sheath which constrains the branch graft assembly to lie substantially in parallel against the main graft assembly while the main graft assembly and the branch graft assembly are being advanced through the first vessel;such that (i) retracting the outer sheath from over the main graft assembly and the branch graft assembly laterally releases the branch graft assembly ...

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Номер записи: 61
27-01-2022 дата публикации

Coated Stent

Номер: US20220023074A1
Автор: PU Wenjun, XIAO Benhao
Принадлежит: Shenzhen Lifetech Endovascular Medical Co., Ltd.

A coated stent (), comprises a coated unit (), and an exposed unit () which is a ring-shaped structure and which is provided on the periphery () of an end portion () of the coated unit (); the exposed unit () comprises an inward-tilting wave body (), the inward-tilting wave body () comprising at least a first wave crest () and a first wave rod () connected to the first wave crest (); the position of the first wave crest () is farther away from the coated unit () than other positions on the inward-tilting wave body (); the first wave rod () is planar, and from the first wave crest () to an end of the exposed unit () near the coated unit (), the radial distance from the inward-tilting wave body () to the central axis () of the coated unit () gradually increases. When the coated stent () is implanted into an arterial vessel (), the inward-tilting wave body () forms a certain avoidance space due to the tilt to adapt to the curvature of a large curved side () of the arterial vessel (), and prevents the inward-tilting wave body () from directly piercing a branch vessel (). 1. A covered stent , wherein the covered stent comprises:a covered unit; anda bare unit, which is a ring-shaped structure and arranged on a periphery of an end portion of the covered unit, wherein the bare unit comprises an inward-tilting wave body comprising at least a first wave crest and a first wave rod connected to the first wave crest, the first wave crest is further from the covered unit than other positions of the inward-tilting wave body, the first wave rod is planar, and from the first wave crest to an end of the bare unit close to the covered unit, a radial distance from the inward-tilting wave body to a central axis of the covered unit gradually increases.2. The covered stent according to claim 1 , wherein the inward-tilting wave body further comprises a first wave trough claim 1 , a vertex of the first wave trough is located on the periphery of the end portion of the covered unit close to ...

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Номер записи: 62
27-01-2022 дата публикации

METHOD AND SYSTEM FOR DELIVERING A SELF-EXPANDING STENT TO THE VENOUS SINUSES

Номер: US20220023079A1
Автор: Callister Jeffrey P.
Принадлежит:

A stent delivery system includes a shaft extending from a proximal end of the system into a delivery tip at a distal end. The shaft includes a coil and a stent bed. A stent is loaded onto the stent bed and has a first portion at its distal end having a greater flexibility than a second portion at its proximal end. Sheathing is movable over the stent bed between pre-deployed and deployed positions. The sheathing includes a flexible section at the sheathing distal end, a semi-flexible section adjacent the flexible section, and a stiff section adjacent the semi-flexible section. The delivery tip is more flexible than the combination of the stent bed, the first portion of the stent, and the flexible section of the sheathing, which is more flexible than the combination of the stent bed, the second portion the stent, and the flexible section of the sheathing. 120-. (canceled)21. A method comprising: a delivery handle at a proximal end of the stent delivery system;', 'a catheter hub;', 'a delivery tip at a distal end of the stent delivery system, wherein the delivery tip comprises a tip distal end and a tip proximal end, and wherein the delivery tip has a first flexibility;', 'a shaft extending from the delivery handle through the catheter hub and into the delivery tip, wherein the shaft comprises a coil and a stent bed, the coil having a coil distal end and a coil proximal end, the stent bed between the coil distal end and the tip proximal end;', 'a stent loaded on to the stent bed, wherein the stent comprises a stent distal end, a stent proximal end, and a body between the stent distal end and the stent proximal end, the body defining a lumen extending through the stent from the stent distal end to the stent proximal end in a deployed state, and wherein a first portion of the body at the stent distal end has a greater flexibility than a second portion of the body at the stent proximal end; and', 'sheathing coupled to the catheter hub and movable over the stent bed ...

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Номер записи: 63
10-01-2019 дата публикации

PROSTHESIS SOCKET VACUUM DEVICE

Номер: US20190008663A1
Автор: Cheng Chia-Pao, WU Fu-Kuo, Wu Hsiang-Ming
Принадлежит:

A prosthesis socket vacuum device includes a base formed with a first chamber formed with a discharge channel and a vacuum relief channel and a second chamber provided, on an underside thereof, with a locking assembly, which includes a position-constraining block. A positioning assembly having sealing gaskets fit thereto includes a locking pin extending through a positioning member and formed with a recess. In setting the positioning assembly into the base, the positioning member compresses and expels internal air of the first chamber to the outside through the discharge channel in a soundless manner to form a vacuum condition. The locking pin drives the locking assembly to displace until the recess and a closure hole are fixed relative to each other so as to have the locking assembly closes the vacuum relief channel. A gap is provided between the closure hole and the recess to provide an effect of cushioning. 1. A prosthesis socket vacuum device , comprising: a base , which is formed with a first chamber and a second chamber in a longitudinal direction , the first chamber being provided with a discharge channel extending to and in communication with a bottom of the base , and a vacuum relief channel; a locking assembly , which has an end provided with a position-constraining block , which is set , as being biased by a spring , under the second chamber , and an opposite end extending through the base to the outside , the position-constraining block being formed , in an interior thereof , with a closure hole; a positioning assembly , which comprises a locking pin extending through a positioning member , the locking pin having a lower portion formed with a recess , with a plurality of second sealing gaskets fit thereto at one side of the recess , the positioning member comprising a plurality of first sealing gaskets fit to an outside surface thereof , wherein when the positioning assembly is set into the base , the positioning member squeezes and expels air contained ...

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Номер записи: 64
10-01-2019 дата публикации

Delivery of medical devices

Номер: US20190008668A1
Автор: Kenneth Brown, Kurt Haggstrom, Michael L. Losordo
Принадлежит: COVIDIEN LP

A stent delivery system can include a core member, an introducer sheath, and a microcatheter. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.

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Номер записи: 65
08-01-2015 дата публикации

Prosthetic Pin Locking Mechanism with Vacuum Tunnels

Номер: US20150012112A1
Автор: Gudni Ingimarsson
Принадлежит: OSSUR HF

A pin lock for a prosthetic device in a vacuum assisted suspension system includes a pin defining a longitudinally elongate bore and at least one passageway extending obliquely relative to the bore and communicating therewith at a proximal end of the pin. The pin lock also includes a locking mechanism having a receiving port arranged to receive the pin and a channel located at a distal end of the receiving port and adapted to communicate with the bore to exhaust air through the pin therefrom.

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Номер записи: 66
19-01-2017 дата публикации

Bridging Stent Graft with Interlocking Features and Methods for Use

Номер: US20170014221A1
Автор: Kelly Patrick W.
Принадлежит:

The present disclosure provides a stent graft comprising (a) a self-expandable stent structure and a graft covering positioned over the self-expandable stent structure, the self-expandable stent structure having a first end and a second end, wherein the self-expandable stent structure defines a lumen, and (b) at least one annular channel defined by at least one of the self-expandable stent structure and the graft covering and extending radially outward from the self-expandable stent structure or at least one annular protrusion defined by at least one of the self-expandable stent structure and the graft covering and extending radially inward from the self-expandable stent structure. 1. A stent graft , comprising:a self-expandable stent structure and a graft covering positioned over the self-expandable stent structure, the self-expandable stent structure having a first end and a second end, wherein the self-expandable stent structure defines a lumen; andat least one annular channel defined by at least one of the self-expandable stent structure and the graft covering and extending radially outward from the self-expandable stent structure or at least one annular protrusion defined by at least one of the self-expandable stent structure and the graft covering and extending radially inward from the self-expandable stent structure.2. The stent graft of claim 1 , wherein the lumen has a diameter ranging from about 4 mm to about 30 mm and a length ranging from about 20 mm to about 250 mm.3. The stent graft of claim 1 , wherein the graft covering extends about 2 mm to about 3 mm past the second end of the self-expandable stent structure.4. The stent graft of claim 1 , wherein the second end of the self-expandable stent structure comprises a plurality of extensions biased radially outward.5. The stent graft of claim 4 , wherein the plurality of extensions are at least about 5 mm in length.6. The stent graft of claim 4 , wherein the plurality of extensions comprise a plurality ...

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Номер записи: 67
19-01-2017 дата публикации

Stent Anti-Migration Mechanism

Номер: US20170014247A1
Автор: Gerard Houlihan, MICHAEL Ryan
Принадлежит: Cook Medical Technologies LLC

A prosthesis and a method for implantation of the prosthesis into a bodily lumen are provided. The prosthesis includes a body having a proximal portion, a distal portion, an outer surface and a lumen extending therethrough defining an inner surface. The outer surface includes a first plurality of protrusions, the first plurality of protrusions are adapted to increase the friction force between the prosthesis and the bodily lumen, the first plurality of protrusions forming a first pattern on at least a portion of the outer surface of the body.

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Номер записи: 68
21-01-2016 дата публикации

METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS

Номер: US20160015396A1
Автор: Cox Brian J., Rosenbluth Robert F., SCHAEFER DEAN
Принадлежит: SEQUENT MEDICAL, INC.

Devices for treatment of a patient's vasculature are described. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The layer of material may be made from acrylic, silk, silicone, polyvinyl alcohol, polypropylene, polyester, PolyEtherEther Ketone (PEEK), polytetrafluoroethylene (PTFE), polycarbonate urethane (PCU), or polyurethane (PU). The support structure may be formed from a slotted tubular member. 1. A device for treatment of a patient's vasculature comprising:a first hub;a second hub;a support structure having a longitudinal axis and disposed between the first hub and the second hub, the support structure including a plurality of struts; anda layer of material disposed over the plurality of struts,wherein the support structure has a low profile, radially constrained state with an elongated tubular configuration having a transverse dimension, the radially constrained state having a low profile suitable for delivery from a microcatheter, andwherein the support structure also has an expanded state having a first end, a second end, and a smooth outer surface and having an axially shortened configuration relative to the radially constrained state.2. The device of claim 1 , wherein the layer of material comprises at least one of acrylic claim 1 , silk claim 1 , silicone claim 1 , polyvinyl alcohol claim 1 , polypropylene claim 1 , polyester claim 1 , PolyEtherEther Ketone (PEEK) claim 1 , polytetrafluoroethylene (PTFE) claim 1 , polycarbonate urethane (PCU) and polyurethane (PU).3. The device of claim ...

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Номер записи: 69
18-01-2018 дата публикации

Frame structures, stent grafts incorporating the same, and methods for extended aortic repair

Номер: US20180014952A1
Автор: Eric E. Roselli
Принадлежит: CLEVELAND CLINIC FOUNDATION

One aspect of the present disclosure can include a frame structure adapted for use with a stent graft. The frame structure can include a scallop region and a Z-form region. The scallop region can have a first end portion, a second end portion, and a perimeter that defines an aperture. The Z-form region can extend from the scallop region and include a plurality of Z-shaped struts, each of which has a first end and a second end that is connected to the scallop region at different points so as to form a central frame structure lumen. The second end portion of the scallop region can include a backstop that is deployable from a first flattened configuration to a second erect configuration. The backstop, in the second erect configuration, is sized and dimensioned to extend into a lumen of an aortic branch vessel.

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Номер записи: 70
21-01-2016 дата публикации

STENT

Номер: US20160015534A1
Автор: KAWAKITA Taisei, Yamashita Hideaki
Принадлежит: TERUMO KABUSHIKI KAISHA

A stent which improves safety by allowing a living body to be less affected even if a drug is detached. A stent has a strut that is formed in a linear shape, and that defines a cylindrical shape having an opening, a side surface coating member which coats at least a part of at least one of the side surfaces of the strut, the side surface coating member including a drug and a drug loading member which is a polymeric material for loading the drug, and an outer surface coating member which coats at least a part of the outer surface of the strut, the outer surface coating member including the drug without including the drug loading member.

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Номер записи: 71
21-01-2016 дата публикации

STENT WITH POLYMER COATING CONTAINING AMORPHOUS RAPAMYCIN

Номер: US20160015537A1
Автор: DeYoung James, McCLAIN James B., TAYLOR Charles Douglas
Принадлежит: MICELL TECHNOLOGIES, INC.

A coated coronary stent, comprising a stainless steel sent framework coated with a p1imer layer of Parylene C, and a rapamycin-polymer coating having substantially uniform thickness disposed on the stent framework, wherein the rapamycin-polymer coating comprises polybutyl methacrylate (PBMA), polyethylene-co-vinyl acetate (PEVA) and rapamycin, wherein substantially all of the rapamycin in the coating is in amorphous form and substantially unifom1ly dispersed within the rapamycin-polymer coating.

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Номер записи: 72
18-01-2018 дата публикации

Tubular Structures with Variable Support

Номер: US20180015257A1
Автор: Jeffery KROLIK, Rajan KHOKHAR
Принадлежит: Q'apel Medical LLC

A tubular structure having variable support includes a tubular member and a structural support member with a flexible tubular member over the structural support member, such that the flexible tubular member can engage and disengage or squeeze and release the structural support member. The structural support member can be a tubular mesh, stent, framework, skeleton, braid or other flexible framework. A fluid passage can be used to inflate and deflate the flexible tubular member. Methods of assembly and methods of use are also described.

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Номер записи: 73
17-01-2019 дата публикации

ENDOLUMINAL DEVICE

Номер: US20190015230A1
Автор: TRENDEL GARY, Walsh Kevin
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

The present invention relates to an endoluminal device for implantation in a body lumen, such as a pancreatic duct. The device is provided with a distal end region having greater flexibility than that of a medial region of the device. 1. An endoluminal device comprising:a stent having a proximal terminal end and a distal terminal end and a longitudinal axis extending therebetween, the stent formed from a plurality of wires;wherein a distal end region adjacent the distal terminal end includes a plurality of loops formed by the plurality of wires, each loop being formed by an end region of a first wire of the plurality of wires connected to an end region of a second wire of the plurality of wires at a joining region, each joining region including only two wires, each loop having only one joining region, each loop having straight side portions, wherein the joining region is proximal of the distal terminal end and distal of the straight side portions.2. The endoluminal device of claim 1 , wherein the first wire extends to the distal terminal end of the stent and is bent back toward the proximal terminal end to form a distal tip of the loop that defines the distal terminal end of the stent.3. The endoluminal device of claim 1 , wherein there is no contact between adjacent straight side portions of adjacent loops.4. The endoluminal device of claim 1 , wherein each of the plurality of loops in the distal end region circumferentially overlaps two adjacent loops of the plurality of loops in the distal end region.5. The endoluminal device of claim 1 , wherein at least one of the first and second wires forming each of the loops in the distal end region crosses over and/or under two other loops of the plurality of loops in the distal end region.6. The endoluminal device of claim 1 , wherein each of the plurality of loops in the distal end region is interbraided with two adjacent loops of the plurality of loops in the distal end region.7. The endoluminal device of claim 1 , ...

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Номер записи: 74
21-01-2021 дата публикации

TRANSCATHETER VALVE PROSTHESIS

Номер: US20210015605A1
Автор: BORTLEIN Georg, NASR Malek
Принадлежит: HIGHLIFE SAS

A transcatheter atrio-ventricular valve prosthesis for functional replacement of an atrio-ventricular heart valve in a connection channel, the prosthesis comprising a radially expandable tubular body extending along an axis, and a valve arranged within and attached to the tubular body. The tubular body is provided with an outer circumferential groove which is open to the radial outside of the tubular body, whereby the tubular body is separated by the outer circumferential groove into first and second body sections. The tubular body is provided with a first plurality of projections which extend from the first or second body section in an axial direction of the tubular body and each of which has a free end arranged to overlap the outer circumferential groove. An elongate outer member may be disposed at the exterior of the connection channel wall structure at a level of the circumferential groove. 1. A system for implanting a heart valve , comprising:a radially self-expandable tubular body having an inflow end and an outflow end and a preformed groove disposed at an outer surface of the tubular body between the inflow end and the outflow end, the preformed groove extending at least partially around the tubular body and having a circumferential opening facing radially outward of the tubular body;a valve disposed within and attached to the tubular body;a guidewire configured to guide portions of native valve leaflets and/or chords into the groove; anda trapping member configured to form a partial loop around the preformed groove when the tubular body is fully expanded.2. The system according to claim 1 , wherein the trapping member comprises:a tubular structure having a central longitudinal axis so as to extend in the groove in a circumferential direction of the tubular body; anda cross-sectional diameter transverse to the central longitudinal axis that is greater than 2 mm and less than 15 mm.3. The system according to claim 1 , wherein the trapping member comprises an ...

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Номер записи: 75
16-01-2020 дата публикации

INTRAVASCULAR CELL THERAPY DEVICE

Номер: US20200015953A1
Автор: Caplice Noel
Принадлежит: University College Cork - National University of Ireland, Cork

An intravascular cell therapy device comprises a scaffold () that is radially adjustable between a contracted orientation suitable for transluminal delivery to a vascular locus and an expanded orientation, and a biodegradable matrix provided on at least a portion of the scaffold that is suitable for seeding with cells and degrades in a vascular environment. The scaffold is configured to have a distal piercing tip () when in a deployed orientation. The scaffold comprises a plurality of sidewall panels () arranged around a longitudinal axis of the scaffold, and adjustable couplings () between the panels configured for adjustment between an expanded configuration and a contracted orientation, and in which each sidewall panel comprises a matrix suitable for seeding with cells.

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Номер записи: 76
16-01-2020 дата публикации

Replacement Mitral Valves

Номер: US20200015964A1
Автор: NOE Spencer, Oakden Jonathan, WALLACE Dan
Принадлежит:

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween. 1an anchor assembly comprising a ventricular anchor, an atrial anchor, and a central portion therebetween, wherein the ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion;an annular strut frame disposed radially within the anchor assembly, the annular strut frame attached to the anchor assembly at a plurality of attachment locations that are positioned between the central portion and an atrial-most edge of the anchor assembly; anda plurality of replacement leaflets secured to the annular strut frame;wherein the central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.. A prosthetic mitral valve comprising: This application is a continuation of U.S. patent application Ser. No. 15/908,701, filed Feb. 28, 2018, which is a continuation of International Patent Application No. PCT/US2018/14902, filed Jan. 23, 2018, titled “REPLACEMENT MITRAL VALVES”, which claims priority to U.S. Provisional Application No. 62/513,877, filed Jun. 1, 2017 and to U.S. Provisional Patent Application No. 62/449,498, filed Jan. 23, 2017, and titled “REPLACEMENT MITRAL VALVES,” the entireties of which are hereby incorporated by reference herein.U.S. patent ...

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Номер записи: 77
28-01-2016 дата публикации

SYSTEMS FOR DIAGNOSING AND/OR TREATING MEDICAL CONDITIONS

Номер: US20160022222A1
Автор: Folk Christopher, Kearns Jacob
Принадлежит:

A method for performing a diagnostic or therapeutic procedure on a partial occlusion within a blood vessel, includes positioning a guide having a sensor configured and adapted to measure at least one of pressure, volume or flow within a blood vessel, advancing the guide through an at least partial occlusion within the blood vessel such that the sensor is downstream of the occlusion, measuring at least one of pressure, volume or flow downstream of the occlusion using the sensor and analyzing data obtained from the sensor to assist in determining the viability of tissue of the blood vessel downstream of the occlusion. 1. A method for performing a diagnostic or therapeutic procedure on an occlusion within a blood vessel , the method comprising:positioning a guide having a sensor configured and adapted to measure at least one of pressure, volume or flow within a blood vessel;advancing the guide through an at least partial occlusion within the blood vessel such that the sensor is downstream of the occlusion;measuring at least one of pressure, volume or flow downstream of the occlusion using the sensor; andanalyzing data obtained from the sensor to assist in determining the viability of tissue of the blood vessel downstream of the occlusion.2. The method according to including determining a surgical protocol based on analyzing the data.3. The method according to including obtaining a CT scan of the blood vessel and/or the occlusion wherein determining the surgical protocol includes reviewing the CT scan.4. The method according to including treating the occlusion.5. The method according to wherein treating the occlusion includes at least one of introducing a thrombectomy device to remove the occlusion claim 4 , initiating drug therapy to treat the occlusion or implanting a flow diverter adjacent the occlusion.6. The method according to wherein measuring at least one of pressure claim 4 , volume or flow downstream of the occlusion using the sensor is also performed ...

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Номер записи: 78
28-01-2016 дата публикации

ENDOLUMINAL PROSTHESIS HAVING MULTIPLE BRANCHES OR FENESTRATIONS AND METHODS OF DEPLOYMENT

Номер: US20160022411A1
Автор: Greenberg Roy K., Resch Timothy A., Roeder Blayne A., West Karl J.
Принадлежит:

A system for facilitating deployment of an endoluminal prosthesis may include a main tubular graft body including a proximal end opening, a distal end opening, a lumen, and a sidewall. A branch may extend from the sidewall and may include a first end opening, a second end opening, and a lumen. A fenestration may be disposed in the sidewall and positioned distal of the second end opening of the branch. A wire segment may include a proximal portion positioned proximal of the proximal end opening and a distal portion positioned distal of the distal end opening. The wire segment extend through the fenestration and through the lumen of the branch in a preloaded configuration. 1. A branched prosthesis comprising:a tubular body of biocompatible graft material having a proximal end, a distal end, an internal lumen, and a longitudinal axis from the proximal end to the distal end;a proximal portion having a first diameter;a distal portion having a second diameter less than the first diameter;a tapered portion between the proximal portion and the distal portion;a retrograde portal at least partially disposed in the distal portion having an opening and configured to permit retrograde fluid flow therethrough;at least two antegrade portals at least partially disposed in the proximal portion each having an open end extending toward the distal end and configured to permit antegrade fluid flow therethrough.2. The prosthesis of claim 1 , wherein the retrograde portal and the at least two antegrade portals are configured to receive a branch extension.3. The prosthesis of claim 1 , wherein one or more radiopaque markers is positioned proximate to one or more of the portals to facilitate imaging of the one or more portals.4. The prosthesis of claim 2 , wherein the branch extensions are balloon expandable.5. The prosthesis of claim 5 , wherein the branch extensions are covered balloon expandable stents.6. The prosthesis of claim 1 , wherein the open ends of the antegrade portals are ...

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Номер записи: 79
28-01-2016 дата публикации

LOCKING MECHANISM FOR SECURING THE INTERFACE BETWEEN STENT GRAFTS

Номер: US20160022413A1
Автор: Farag Jacqueline
Принадлежит: Cook Medical Technologies LLC

A modular stent graft system and methods of assembly are disclosed. The stent graft assembly comprises a first stent graft having an interface region at its distal end and a first locking stent secured to an internal surface of the interface region. A second stent graft having an interface region at its proximal end is configured to at least partially overlap with the interface region at the distal end of the first stent graft. The second stent graft comprises a second locking stent secured to an external surface of the interface region. The first and second locking stents are configured to be engaged such that the second locking stent is nested between the first locking stent and an internal surface of the interface region of the first stent graft thereby interlocking the first and second stent grafts to each other. 1. A modular stent graft system comprisinga first stent graft comprising a first tubular body of biocompatible graft material, a proximal end, a distal end, an internal lumen, and an inner interface region at the distal end having an internal surface;a locking stent secured to the internal surface of the inner interface region, the locking stent having a first end, a second end, proximal apices, distal apices, and a locking mechanism at one of the ends of the locking stent having an unattached free end that extends away from the internal surface and inwardly into the internal lumen;a second stent graft comprising a second tubular body of biocompatible graft material, a proximal end, a distal end, and an outer interface region having an external surface at the proximal end configured to at least partially overlap with the inner interface region of the first stent graft;at least one stent secured to the external surface of the outer interface region, the at least one stent comprising a series of proximal apices and a series of distal apices, wherein when the inner interface region and outer interface region are in at least a partial overlapping ...

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Номер записи: 80
28-01-2016 дата публикации

System and Method for Sealing Prosthetic Socket

Номер: US20160022441A1
Автор: Denune Jeffrey A., DODDROE JEFFREY L., Jr. Larry Gail, Nolt Lonnie Lavern, Rowe
Принадлежит:

Various embodiments of a system and method for sealing a prosthetic socket are disclosed. One example socket sealing system may comprise: a prosthetic socket having a proximal end, an expanded section, and an internal peripheral shoulder; a brim seal having an inner proximal end, an outer proximal end, and a distal end; a removable brim having a distal end; a liner; and a wicking sock; wherein prosthetic socket may be oriented radially outwardly of the outer proximal end of the brim seal, the outer proximal end of the brim seal may be oriented radially outwardly of the removable brim, the removable brim may be oriented radially outwardly of the inner proximal end of the brim seal, the inner proximal end of the brim seal may be oriented radially outwardly of the wicking sock, and the wicking sock may be oriented radially outwardly of the liner; and wherein the brim seal may be reflected about the distal end of the removable brim. 1. A socket sealing system , comprising:a prosthetic socket having a proximal end, an expanded section, and an internal peripheral shoulder;a brim seal having an inner proximal end, an outer proximal end, and a distal end;a removable brim having a distal end;a liner; anda wicking sock;wherein prosthetic socket is oriented radially outwardly of the outer proximal end of the brim seal, the outer proximal end of the brim seal is oriented radially outwardly of the removable brim, the removable brim is oriented radially outwardly of the inner proximal end of the brim seal, the inner proximal end of the brim seal and the wicking sock are oriented radially outwardly of the liner; andwherein the brim seal is reflected about the distal end of the removable brim.2. The socket sealing system of claim 1 , wherein the inner proximal end of the brim seal is oriented proximally.3. The socket sealing system of claim 1 , wherein the outer proximal end of the brim seal is oriented proximally.4. The socket sealing system of claim 1 , wherein the brim seal ...

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Номер записи: 81
28-01-2016 дата публикации

Occlusive Device

Номер: US20160022445A1
Автор: Earl Frederick BARDSLEY, Richard Rhee, Teresa Ruvalcaba
Принадлежит: COVIDIEN LP

An aneurysm embolization device can include a body having a single, continuous piece of material that is shape set into a plurality of distinct structural components. For example, the device can have an expandable component and an atraumatic tip portion extending therefrom. Further, the tip portion can be configured to enable the device to be implanted within the aneurysm while tending to mitigate risk of puncturing the aneurysm dome or otherwise assist in framing the aneurysm in advance of placement of additional embolic material.

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Номер записи: 82
28-01-2016 дата публикации

Stent with tether interface

Номер: US20160022448A1
Автор: Charlotte MURPHY, Idan Tobis, Michael Gilmore
Принадлежит: 4Tech Inc

A radially-expandable stent ( 20 ) is shaped so as to define one or more tether interfaces ( 50 ), a lower-securement portion ( 56 ), and a higher-securement portion ( 64 ). The lower-securement portion ( 56 ) extends (a) along at least a contiguous lower-securement axial segment ( 58 ) of the stent ( 20 ) and (b) circumferentially around a contiguous lower-securement circumferential portion ( 60 ) of the stent ( 20 ), which lower-securement axial segment ( 58 ) and lower-securement circumferential portion ( 60 ) include the one or more tether interfaces ( 50 ). The higher-securement portion ( 64 ) extends (a) along at least a contiguous higher-securement axial segment ( 65 ) of the stent ( 20 ) and (b) circumferentially around between 215 and 330 degrees of a circumference (C), at all circumferential locations other than those of the lower-securement circumferential portion ( 60 ). The stent ( 20 ) is shaped so as to define a plurality of outward protrusions ( 70 ) at respective circumferential locations ( 72 ) around the higher-securement portion ( 64 ), and not around the lower-securement portion ( 56 ). One or more tethers ( 34 ) are coupled to the one or more tether interfaces ( 50 ), respectively, and to one or more tissue anchors ( 30 ), respectively.

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Номер записи: 83
28-01-2016 дата публикации

VASCULAR DEVICE FOR ANEURYSM TREATMENT AND PROVIDING BLOOD FLOW INTO A PERFORATOR VESSEL

Номер: US20160022451A1
Автор: Kusleika Richard
Принадлежит:

A vascular device includes a body having a first, collapsed configuration and a second, expanded configuration. The body includes a plurality of heat-set strands that are braided such that when the body is in the second configuration, the strands form a plurality of pores and one or more apertures between the strands. The apertures are generally disposed at a longitudinal center region of the body. When the body is in the second configuration, the pores at proximal and distal portions of the body are generally uniform in size and smaller in size than the apertures. The pores and the apertures are substantially the same size when the body is in the first configuration. 1. A method , comprising:positioning, at a target location within a blood vessel, a vascular device having a body in a first, collapsed configuration with the body comprising braided strands forming pores and apertures between the strands, the pores and the apertures being substantially the same size as each other in the first, collapsed configuration; andexpanding the body from the first, collapsed configuration to a second, expanded configuration with the apertures being disposed at a longitudinally central section of the body, the pores being disposed at longitudinally proximal and distal sections of the body, and the pores being generally uniform in size and smaller in size than the apertures in the second, expanded configuration;wherein a number of strands in each of the proximal, central, and distal sections of the body is the same.2. The method of claim 1 , wherein central regions of the apertures are disposed along a single radial cross section of the body.3. The method of claim 2 , wherein the body has a hoop strength that is generally uniform along a longitudinal length of the body.4. The method of claim 1 , wherein the body has a hoop strength that is generally uniform along a longitudinal length of the body.5. The method of claim 1 , wherein the expanding comprises aligning at least one of ...

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Номер записи: 84
26-01-2017 дата публикации

Vacuum prosthesis with force sensing member

Номер: US20170020694A1
Автор: Michael E. Tompkins
Принадлежит: Hanger Inc

A prosthetic device includes a socket assembly defining a cavity and configured to receive a portion of a residual limb of a user within the cavity, a force sensing member configured to detect forces applied to the residual limb at a plurality of locations about the portion of the residual limb and generate signals based on the detected force, a vacuum system in fluid communication with the socket and configured to control an amount of vacuum applied to the cavity, and a controller coupled to the force sensing member and the vacuum system. The controller is configured to receive the signals from the force sensing member and control operation of the vacuum system during use of the prosthetic device by the user based at least in part on the signals received from the force sensing member.

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Номер записи: 85
26-01-2017 дата публикации

PERCUTANEOUS HEART VALVE

Номер: US20170020695A1
Автор: Quadri Arshad
Принадлежит: Edwards Lifesciences CardiAQ LLC

A percutaneous heart valve for deployment within a body cavity is described. The percutaneous heart valve includes an expandable frame having a plurality of cells adapted for allowing the frame to expand and collapse. A one-way valve is positioned within the expandable frame. The frame includes a proximal anchoring portion and a distal anchoring portion. The distal anchoring portion includes a plurality of distal anchors, each distal anchor having at least a portion positioned radially outwardly from the frame and extending in a direction that is substantially parallel with a longitudinal axis. The distal anchors preferably bend radially outwardly before bending to extend toward the proximal anchoring portion. Radial expansion of the frame causes the proximal and distal anchoring portions to move closer together for capturing body tissue therebetween, thereby anchoring the percutaneous heart valve to the body tissue. 1. A percutaneous heart valve configured to be deployed within a body cavity having an opening surrounded by surrounding body tissue , the percutaneous heart valve comprising:an expandable frame comprising a proximal end and a distal end and a longitudinal axis extending therethrough, the expandable frame comprising a plurality of cells configured to permit the frame to radially expand and collapse for deployment within the opening of the body cavity;a valve seated inside the expandable frame;a proximal anchoring portion, wherein when the frame is in an expanded configuration, the proximal anchoring portion extends at least partially distally; and at least a portion of each distal anchor extends proximally to a proximalmost portion of the distal anchor positioned radially outward from the frame, the proximalmost portions extending in a direction that is more parallel with the longitudinal axis than with a transverse axis perpendicular to the longitudinal axis;', 'at least one of the distal anchors bends radially outwardly along a first portion before ...

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Номер записи: 86
26-01-2017 дата публикации

STENT AND METHOD FOR MANUFACTURING THEREOF

Номер: US20170020699A1
Автор: Welch Tre Raymond
Принадлежит:

According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane. 1. A non-metallic stent having a furled small-diameter state and an expanded large diameter state , the stent comprising , in the furled small-diameter state:a first plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis;a second plurality of central lobes arranged at spaced-apart intervals and extending longitudinally along the stent axis;at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes, each lobe of the first plurality of central lobes, the second plurality of central lobes, and the at least one peripheral lobe formed by a coiled rotation of an element, wherein the element comprises a Poly-L-Lactic Acid polymer fiber loaded with a material; andwherein the first plurality of central lobes are formed longitudinally in a first direction along said stent axis in a rotational winding direction and the second plurality of central lobes are formed longitudinally in a second direction along said stent axis in the rotational winding direction to form respective first and second helices having an opposing winding pattern along the stent axis.2. The stent of claim 1 , wherein said material is a radio-opaque material.3. The stent of claim 1 , wherein the at least one peripheral lobe ...

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Номер записи: 87
24-01-2019 дата публикации

STENT WITH EXPANDABLE FOAM

Номер: US20190021838A1
Автор: Benett William J., Buckley Patrick R., Hartman Jonathan, IV Ward, Maitland Duncan J., Saloner David A., Small, Wilson Thomas S.
Принадлежит:

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure. 1. A system comprising:a first shape memory polymer (SMP), the first SMP including a first SMP foam;a second SMP, the second SMP including a second SMP foam;wherein the first SMP foam: (a)(i) is an open cell foam, (a)(ii) is biodegradable, (a)(iii) includes a first channel, and (a)(iv) includes two or more members selected from the group comprising Hexamethylene diisocyanate (HDI), triethanolamine (TEA), or hydroxypropyl ethylenediamine (HPED);wherein the second SMP foam: (b)(i) is cylindrical, (b)(ii) includes a second channel, and (b)(iii) is included in the first channel; andwherein: (c)(i) the first SMP foam is in a first state; and (c)(ii) the first SMP foam is configured to expand to a second state, radially outward from the second SMP foam, in response to thermal stimulus.2. The system of wherein:{'sub': 'g', 'the first SMP foam has a glass transition temperature (T) between 30° C. and 86° C.;'}the first SMP foam is cross-linked; andthe first SMP foam is configured to have, in the second state, a volumetric void fraction greater than 98% and less than 100%.3. The system of comprising a third SMP claim 2 , wherein the third SMP is between the first and second SMP foams.4. The system of wherein the third SMP includes a stent having a first strut that includes the third SMP and a second strut that includes the third SMP.5. The system of comprising a fourth SMP claim 3 , wherein:the third SMP is between the fourth SMP and the second SMP;the second SMP is not monolithic with the first SMP;the second SMP is not monolithic with the third SMP;the fourth SMP is not monolithic with the second SMP;the fourth SMP is cured.6. The system of comprising a third SMP claim 2 , wherein:the second SMP foam is between the third SMP and the first SMP foam;the third SMP is cured and the ...

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Номер записи: 88
24-01-2019 дата публикации

FLEXIBLE STENT WITH NON-BONDED STENT COVER MATERIAL REGIONS

Номер: US20190021840A1
Автор: Mayle Brent A., Spindler Ralf
Принадлежит: Cook Medical Technologies LLC

A prosthesis is provided for a variety of medical treatments. The prosthesis may include an expandable tubular frame structure and a covering disposed along the frame structure. A proximal liner may be situated along a proximal end of the frame, a distal liner may be situated along a distal end of the frame, and an intermediate liner may be between the proximal liner and the distal liner along the frame. The intermediate liner comprises an extended layer that meets and bonds to the proximal liner and the distal liner at their respective ends. A method of manufacturing the prosthesis is also provided. 1. A prosthesis comprising:an expandable tubular frame structure having a proximal frame end and a distal frame end;a covering disposed along the frame structure, the covering including a first liner, a proximal liner, and a distal liner discrete from the proximal liner, the first liner comprising a plurality of first liner layers, wherein at least one of the first liner layers is an extended layer extending beyond a proximal end of the remaining first liner layers and a distal end of the remaining first liner layers of the first liner,wherein a proximal end of the extended layer is bonded to the proximal liner along the proximal frame end at a first coupling segment, and a distal end of the extended layer is bonded to the distal liner along the distal frame end at a second coupling segment, andwherein one of the first liner layers immediately adjacent to the expandable tubular frame structure remains unbonded to the expandable tubular frame structure along an intermediate region of the frame structure disposed between the proximal and distal frame ends.2. The prosthesis of claim 1 , wherein the first and second coupling segments have a common wall thickness claim 1 , and an intermediate segment of the first liner that remains unbonded to the expandable tubular frame structure comprises a wall thickness sized the same as the common wall thickness.3. The prosthesis of ...

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Номер записи: 89
24-01-2019 дата публикации

PROSTHETIC SOCKET RETENTION SYSTEMS AND METHODS

Номер: US20190021884A1
Автор: BALLAS Gary Joseph, BALLAS Michael Thomas
Принадлежит:

A friction-based prosthetic retention system includes a prosthetic socket and a plurality of hydraulic actuators attached to an interior surface of the prosthetic socket. A socket liner is positioned over the plurality of hydraulic actuators and includes a plurality of friction elements. A limb liner is placed over a residual limb to be secured within the prosthetic socket. The limb liner includes a plurality of friction pad projections arranged to engage with the plurality of friction elements on the socket liner. A controller is attached to the prosthetic socket and is fluidly coupled to the plurality of hydraulic actuators. The controller is configured to control the plurality of hydraulic actuators to apply pressure to the socket liner to engage the plurality of friction elements of the socket liner with the friction pad projections of the limb liner to retain the prosthetic socket. 1. A prosthetic system , comprising:a prosthetic socket having an interior surface and an exterior surface;a plurality of hydraulic actuators attached to the interior surface of the prosthetic socket;a socket liner positioned over the plurality of hydraulic actuators, the socket liner including a plurality of friction elements;a limb liner configured to be placed over a residual limb to be secured within the prosthetic socket, the limb liner including a plurality of friction pad projections arranged to engage with the plurality of friction elements on the socket liner; anda controller attached to the prosthetic socket and fluidly coupled to the plurality of hydraulic actuators, the controller configured to control the plurality of hydraulic actuators to apply pressure to the socket liner to engage the plurality of friction elements of the socket liner with the friction pad projections of the limb liner to retain the prosthetic socket on the residual limb in the limb liner.2. The prosthetic system of claim 1 , wherein the limb liner further comprises an elastomeric end stop formed on ...

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Номер записи: 90
24-01-2019 дата публикации

STENT WITH SEGMENTS CAPABLE OF UNCOUPLING DURING EXPANSION

Номер: US20190021885A1
Автор: KIM Woong, Milner Keith R., Swift Richard A.
Принадлежит: Cook Medical Technologies LLC

Examples of a stent are provided with interlocking joints removably coupling adjacent axial stent segments. Mating elements forming the interlocking joints maintain engagement when the stent is in the radially compressed configuration, for example, during tracking of the stent to a treatment site of a body vessel, and become disengaged during radial expansion of the stent. When disengaged, the disconnected the axial stent segments remain discrete stent structures separated from one another along the point of treatment. 1. A stent disposed about a longitudinal axis , the stent having a radially compressed configuration and a radially expanded configuration , the stent comprising:a first stent segment disposed about the longitudinal axis and a plurality of stent struts forming a plurality of first outer apices that extend in a first longitudinal direction;a second stent segment disposed about the longitudinal axis and axially to adjacent to the first stent segment, the second stent segment having a plurality of stent struts forming a plurality of second outer apices that extend in a second longitudinal direction, opposite the first longitudinal direction; anda plurality of interlocking joints removably coupling the first stent segment and the second stent segment together, each of the interlocking joints comprising is a first mating element, a second mating element, and a third mating element, wherein the first mating element extends away from one of the first outer apices, the second mating element and the third mating element extend away from adjacent outer apices of the second outer apices, and an axial restrictor member extending away from the second stent segment, wherein, in the radially compressed configuration, the second and third mating elements are circumferentially engageable with the first mating element, and the axial restrictor member is axially engageable with the first mating element.2. The stent of claim 1 , wherein the axial restrictor member ...

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Номер записи: 91
24-01-2019 дата публикации

SEGMENTED SELF-EXPANDING STENT

Номер: US20190021886A1
Автор: Kim Seoggwan, Milner Keith, Moran Emma, Swift Richard A.
Принадлежит:

Disclosed herein is a delivery system and method for delivering a plurality of separate intraluminal support devices with predictable spacing. The intraluminal support devices may be self-expanding devices mounted over an inflatable balloon of a balloon catheter and adhered thereto by an adhesive. The intraluminal support devices may optionally have a flattened tip region. 1. A medical device assembly comprising:a balloon catheter comprising a catheter body extending from a proximal end to a distal end and defining a longitudinal axis therethrough, and a balloon inflatable from a deflated state to an inflated state disposed circumferentially around the catheter body; anda plurality of separate intraluminal support devices for implantation into a lumen of a body vessel, each intraluminal support device comprising a tubular body comprising at least one ring and being radially expandable from a compressed state to an expanded state, each intraluminal support device being a self-expanding device;the plurality of intraluminal support devices being releasably secured about a delivery portion of the balloon in the deflated state, the plurality of intraluminal support devices being arranged such that a portion of one of the intraluminal support devices is in contact with a portion of an adjacent intraluminal support device, the plurality of intraluminal support devices being detached from the balloon when in the inflated state.2. The medical device assembly of claim 1 , wherein each ring comprises a plurality of struts and bends arranged in a repeating pattern to define a plurality of peaks.3. The medical device assembly of claim 2 , wherein each of the plurality of peaks defines a flat surface in a plane perpendicular to the longitudinal axis.4. The medical device assembly of claim 2 , wherein the plurality of peaks of one intraluminal support device are arranged in phase with the plurality of peaks of an adjacent intraluminal support device.5. The medical device assembly ...

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Номер записи: 92
23-01-2020 дата публикации

DEVICES AND METHODS FOR TREATMENT OF VASCULAR ANEURYSMS

Номер: US20200022801A1
Автор: KIM Steven W., SHIU Brian K.
Принадлежит:

The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In a first embodiment of the present invention, a two part prostheses, where one part is an expandable sponge structure and the other part is an expandable tubular mesh structure, is provided. In the first embodiment, the expandable sponge structure is intended to fill the aneurysm cavity to prevent further dilatation of the vessel wall by creating a buffer or barrier between the pressurized pulsating blood flow and the thinning vessel wall. In the first embodiment, the expandable tubular mesh structure is placed across the aneurysm, contacting the inner wall of healthy vessel proximal and distal to the aneurysm. 1. A system for treating an aneurysm comprising:a catheter delivery system having a distal tip; anda filler passable through the distal tip, wherein when the filler is in a deployed configuration, the filler is between a first leg of a bifurcated stent and a wall of the aneurysm, and wherein when the filler is in the deployed configuration, the filler is between a second leg of the bifurcated stent and the wall of the aneurysm.2. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the filler contacts the first and second legs of the bifurcated stent.3. The system of claim 2 , wherein when the filler is in the deployed configuration claim 2 , the filler contacts the wall of the aneurysm.4. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the filler contacts the wall of the aneurysm.5. The system of claim 4 , wherein when the filler is in the deployed configuration claim 4 , the filler contacts at least one of the first and second legs of the bifurcated stent.6. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , a portion of the filler is between ...

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Номер записи: 93
23-01-2020 дата публикации

DEVICES AND METHODS FOR TREATMENT OF VASCULAR ANEURYSMS

Номер: US20200022802A1
Автор: KIM Steven W., SHIU Brian K.
Принадлежит:

The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In one embodiment, a system for treating an aneurysm is disclosed. The system comprises a catheter delivery system, an expandable foam configured to pass through the catheter delivery system, and a stent having a first end and a second end. The stent is configured to extend across the aneurysm. The expandable foam is configured to expand in the aneurysm when exposed to a fluid. 1. A system for treating an aneurysm comprising:a catheter delivery system having a distal tip; anda filler passable through the distal tip into a first fillable space and into a second fillable space, wherein when the filler is in a deployed configuration, the filler is in the first and second fillable spaces, and wherein the first fillable space is at a proximal end of the aneurysm and the second fillable space is at a distal end of the aneurysm.2. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the ii first fillable space and the second fillable space are separate from each other.3. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the first fillable space is connected to the second fillable space.4. The system of claim 1 , wherein before the filler is deployed claim 1 , the first fillable space is separate from the second fillable space.5. The system of claim 4 , wherein after the filler is deployed claim 4 , the first fillable space is connected to the second fillable space.6. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the filler is a continuous structure.7. The system of claim 1 , wherein when the filler is in the deployed configuration claim 1 , the filler contacts two distal legs of a bifurcated stent.8. The system of claim 7 , wherein when the filler is in the ...

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Номер записи: 94
28-01-2021 дата публикации

STENT WITH EXPANDABLE FOAM

Номер: US20210022847A1
Автор: Benett William J., Buckley Patrick R., Hartman Jonathan, IV Ward, Maitland Duncan J., Saloner David, Small, Wilson Thomas S.
Принадлежит:

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure. 1a first shape memory polymer (SMP), the first SMP including a SMP foam;a second SMP;wherein the SMP foam: (a)(i) is an open cell foam, (a)(ii) is biodegradable, (a)(iii) includes a first channel, and (a)(iv) includes a reaction product of a diisocyanate, triethanolamine (TEA), and hydroxypropyl ethylenediamine (HPED);wherein the second SMP: (b)(i) is a cylindrical stent having a first strut that includes the second SMP and a second strut that includes the second SMP, (b)(ii) includes a second channel, and (b)(iii) is included in the first channel;wherein: (c)(i) the SMP foam is in a first state; and (c)(ii) the SMP foam is configured to expand to a second state, radially outward from the second SMP, in response to thermal stimulus;wherein the first SMP is crimped and the second SMP is crimped;wherein the SMP foam has a glass transition temperature (Tg) between 30° C. and 86° C.;wherein the SMP foam is a thermoset polyurethane polymer;wherein the first SMP is coupled to a wire and the second SMP is coupled to the wire.. A system comprising: This application is a Continuation of U.S. patent application Ser. No. 16/139,365, filed Sep. 24, 2018, which is a Continuation of U.S. patent application Ser. No. 14/797,973, filed Jul. 13, 2015, entitled “Stent with Expandable Foam”, which issued on Sep. 25, 2018 as U.S. Pat. No. 10,080,642, which is a Continuation of U.S. patent application Ser. No. 13/892,492, filed May 13, 2013, entitled “Stent with Expandable Foam”, which issued on Jul. 14, 2015 as U.S. Pat. No. 9,078,738, which is a continuation of U.S. patent application Ser. No. 13/010,055, filed Jan. 20, 2011, entitled “Stent with Expandable Foam”, which issued on May 28, 2013 as U.S. Pat. No. 8,449,592, which is a Continuation-in-Part of U.S. patent application Ser. No. 11/ ...

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Номер записи: 95
28-01-2021 дата публикации

ADVANCED ENDOVASCULAR GRAFT AND DELIVERY SYSTEM

Номер: US20210022895A1
Автор: Chobotov Michael V., Geusen Mark, Poppe Carl H., Staudenmayer Christopher L., Stephens William P., Vinluan Jenine S., WATSON JAMES R., Woodson Teresa
Принадлежит:

Embodiments are directed in part to endovascular prostheses and methods of deploying same. Embodiments may be directed more specifically to stent grafts and methods of positioning and deploying such devices within the body of a patient. 1. A delivery system for delivering a stent graft , comprising:a delivery catheter comprising an elongate shaft;a stent graft having a stent portion and a main graft body with an inner lumen, the stent graft being loaded on a section of the delivery catheter such that the elongate shaft is disposed within the inner lumen;an expandable device having an expandable portion, the expandable portion disposed on the elongate shaft within the inner lumen and configured to fully radially expand within the inner lumen to radially expand the main graft body; anda constraining device configured to radially constrain the stent portion in a radially constrained state while the main graft body is radially expanded.2. The delivery system of claim 1 , wherein the expandable device comprises an expanded basket including elongate tines claim 1 , wherein the elongate tines are configured to extend substantially parallel to a portion of the elongate shaft of the delivery catheter when the elongate tines are in a contracted configuration claim 1 , and wherein the elongate tines are configured to bow radially outwardly from the portion of the elongate shaft in a substantially concentric arrangement when the elongate tines are in an expanded configuration.3. The delivery system of claim 2 , wherein the elongate tines are configured to self-expand to the expanded configuration.4. The delivery system of claim 2 , wherein the elongate tines are configured to expand to the expanded configuration due to an axial compressive force applied to at least one end of the tines.5. The delivery system of claim 1 , wherein the expandable device comprises an expanding basket claim 1 , the expanding basket including elongate tines that extend substantially parallel to the ...

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Номер записи: 96
28-01-2021 дата публикации

APPARATUS AND METHOD FOR DEPLOYING AN IMPLANTABLE DEVICE WITHIN THE BODY

Номер: US20210022897A1
Автор: ALAVAR Frederich A.L., ARNAULT DE LA MENARDIERE Brice, LADUCA PAUL A., LADUCA Robert C.
Принадлежит: Taheri LaDuca LLC

The present invention provides systems and methods for deploying implantable devices within the body. The delivery and deployment systems include at least one catheter or an assembly of catheters for selectively positioning the lumens of the implant to within target vessels. Various deployment and attachment mechanisms are provided for selectively deploying the implants. 1. A stent-loaded catheter assembly as disclosed herein.2. A method of deploying a stent as disclosed herein. This application is a continuation of U.S. patent application Ser. No. 16/116,750 filed Aug. 29, 2018, which is a continuation of U.S. patent application Ser. No. 12/240,833 filed Sep. 29, 2008 (now U.S. Pat. No. 10,105,249), which is a continuation of International Application No. PCT/US2008/053615 filed Feb. 11, 2008, which claims the benefit of U.S. Provisional Application No. 60/889,186 filed Feb. 9, 2007. U.S. patent application Ser. No. 12/240,833 is also a continuation-in-part of U.S. patent application Ser. No. 11/033,479 filed Jan. 10, 2005. The contents of these applications are incorporated herein by reference in their entirety for all purposes.The present invention relates to the treatment of vascular disease, including for example aneurysms, ruptures, psuedoaneurysms, dissections, exclusion of vulnerable plaque and treatment of occlusive conditions, and more particularly, the invention is related to an apparatus and method for delivering and deploying an implantable device within the body to treat such conditions. The present invention is particularly suitable for implanting stents, grafts and stent grafts within arteries or other vessels at sites involving two or more intersecting vessels.It is well known in the prior art to treat vascular disease with implantable stents and grafts. For example, it is well known in the art to interpose within a stenotic or occluded portion of an artery a stent capable of self-expanding or being balloon-expandable. Similarly, it is also well ...

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Номер записи: 97
10-02-2022 дата публикации

METHOD FOR TREATING ARTERIAL STENOSIS

Номер: US20220044393A1
Автор: CHI Shen, HO Ruo-Jing, HSU Chang Francis, HSU Long, HUANG Han-Ping, LEE Ying-Hsiang, LIN Po-Lin, LIU Yu-Min
Принадлежит:

Disclosed herein is a method of treating a subject having arterial stenosis. The method comprises: (a) providing a plurality of image frames of an artery of the subject taken in sequence; (b) in a plurality of cross-sections of the artery, determining a maximum diameter and a minimum diameter of each of the plurality of cross-sections of the artery among the plurality of image frames of the step (a); (c) calculating an average vasodilation ratio of the artery base on the maximum diameter and the minimum diameter determined in the step (b); and (d) treating the subject based on the average vasodilation ratio calculated in the step (c), by implanting a stent to the subject when the average vasodilation ratio is equal to or greater than 0.2; or administering to the subject an effective amount of a vasodilator when the average vasodilation ratio is less than 0.2. 1. A method of treating a subject having arterial stenosis , comprising ,(a) providing a plurality of image frames of an artery of the subject taken in sequence;(b) in a plurality of cross-sections of the artery, determining a maximum diameter and a minimum diameter of each of the plurality of cross-sections of the artery among the plurality of image frames of the step (a);(c) calculating an average vasodilation ratio of the artery base on the maximum diameter and the minimum diameter of each of the plurality of cross-sections of the artery determined in the step (b); and 'implanting a stent to the subject when the average vasodilation ratio is equal to or greater than 0.2.', '(d) treating the subject based on the average vasodilation ratio calculated in the step (c) by'}2. The method of claim 1 , wherein in the step (b) claim 1 , the maximum diameter and the minimum diameter are determined by the steps of claim 1 ,(i) determining a boundary and a central axis of the artery via aligning each of the plurality of image frames;(ii) selecting the plurality of cross-sections in the artery according to the normal ...

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Номер записи: 98
04-02-2016 дата публикации

Prosthetic Limb Heating Apparatus

Номер: US20160030205A1
Автор: Bryan Costello
Принадлежит: Costello Prosthetic Warmers LLC

A prosthetic limb heating apparatus for use with a prosthetic assembly includes a sleeve having a side wall that defines open upper and lower ends. The upper end is configured to receive an upper limb portion and prosthetic liner into the sleeve. The open lower end is configured to allow the upper limb portion to pass therethrough but not the prosthetic liner such that the prosthetic liner is nested in the interior area. An electrically conductive wire is situated on the sleeve and extends circuitously thereabout, the conductive wire having opposed first and second ends. A battery is coupled to the side wall of the sleeve and electrically connected to the first and second ends of the conductive wire so as to selectively energize the conductive wire. The conductive wire imparts heat to the prosthetic liner when the liner is nested within the sleeve and the conductive wire is energized.

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Номер записи: 99
04-02-2016 дата публикации

STENT GRAFT ADAPTOR

Номер: US20160030218A1
Автор: Ducke Werner Dieter, Hartley David Ernest, II Piotr Miroslaw, Kasprzak, Roeder Blayne A.
Принадлежит: Cook Medical Technologies LLC

A stent graft adaptor has an outer graft tube and an inner graft tube with the inner graft tube substantially concentric with and within the outer graft tube. A joining member extends between the inner tube and the outer tube. The joining member can be a continuous fold of graft material extending from a proximal end of the outer tube to a proximal end of the inner tube. The inner tube has at least one self expanding stent on an outer surface thereof and the outer graft tube has at least one self expanding stent on an inner surface. The outer surface of the outer tube provides a sealing surface to engage against the wall of a vessel and the inner tube provides a sealing surface to engage with a corresponding sealing surface of a stent graft deployed through it. The outer sealing surface can include barbs. 1. A stent graft delivery assembly comprising:a delivery device including a proximal end, a distal end, a nose cone dilator at the proximal end, the nose cone dilator having a proximal tip and a distal end, and an inner catheter extending from the distal end of the delivery device to at least the nose cone dilator;a stent graft mounted at least partially over the inner catheter, the stent graft comprising a tube of graft material and having a proximal end, a distal end and at least one stent attached to the tube of graft material, the tube of graft material having a proximal end, a proximal portion having a first diameter, a proximal portion inner lumen, a distal end, a distal end portion having a second diameter, and a distal portion inner lumen in fluid communication with the proximal portion inner lumen;wherein the graft material of the proximal portion is at least partially inverted into the lumen of the proximal portion to form an outer proximal tube portion and an inner proximal tube portion of graft material disposed within the outer proximal tube portion, the inner proximal tube portion having an edge disposed distal of the proximal end of the graft ...

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Номер записи: 100