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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 2783. Отображено 100.
08-03-2012 дата публикации

Prosthesis delivery systems and methods

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

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

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Номер записи: 1
03-05-2012 дата публикации

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

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

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

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Номер записи: 2
10-05-2012 дата публикации

Stent delivery system

Номер: US20120116493A1
Автор: Kinya Harada
Принадлежит: Terumo Corp

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

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Номер записи: 3
07-06-2012 дата публикации

Transluminal delivery system

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

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

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Номер записи: 4
05-07-2012 дата публикации

Stent delivery system

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

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

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Номер записи: 5
20-09-2012 дата публикации

Prosthetic heart valve delivery apparatus

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

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

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Номер записи: 6
11-10-2012 дата публикации

Flexible intraluminal scaffold

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

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

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Номер записи: 7
06-12-2012 дата публикации

Gastrointestinal implant device and delivery system therefor

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

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

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Номер записи: 8
06-12-2012 дата публикации

Prosthesis delivery system

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

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

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Номер записи: 9
03-01-2013 дата публикации

Spring Controlled Stent Delivery System

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

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

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Номер записи: 10
28-03-2013 дата публикации

Distal detachment mechanisms for vascular devices

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

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

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Номер записи: 11
18-04-2013 дата публикации

Medical Implant Maintaining Gaps upon Crimping, Method and Delivery Device

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

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

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Номер записи: 12
16-05-2013 дата публикации

Medical device with keyed locking structures

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

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

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Номер записи: 13
22-08-2013 дата публикации

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

Номер: US20130218138A1
Автор: Amir Fargahi
Принадлежит: BIOTRONIK AG

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

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Номер записи: 14
17-10-2013 дата публикации

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

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

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

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Номер записи: 15
24-10-2013 дата публикации

Introducer assembly

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

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

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Номер записи: 16
23-01-2014 дата публикации

Methods and apparatus for luminal stenting

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

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

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Номер записи: 17
30-01-2014 дата публикации

Luminal stenting

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

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

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Номер записи: 18
30-01-2014 дата публикации

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

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

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

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Номер записи: 19
06-03-2014 дата публикации

Trans-Aortic Delivery System With Containment Capsule Centering Device

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

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

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Номер записи: 20
20-03-2014 дата публикации

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

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

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

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Номер записи: 21
06-01-2022 дата публикации

STAGED DEPLOYMENT OF EXPANDABLE IMPLANT

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

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

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Номер записи: 22
06-01-2022 дата публикации

STENT DELIVERY APPARATUS

Номер: US20220000647A1
Автор: KIRINO Yuko
Принадлежит: OLYMPUS CORPORATION

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

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Номер записи: 23
07-01-2016 дата публикации

Delivery systems for cardiac valve support devices

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

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

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Номер записи: 24
03-01-2019 дата публикации

Pre-loaded multiport delivery device

Номер: US20190000607A1
Автор: David Ernest Hartley, Erik E. Rasmussen, Krasnodar Ivancev, Roy K. Greenberg, Werner D. Ducke
Принадлежит: CLEVELAND CLINIC FOUNDATION, Cook Medical Technologies LLC

A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. The indwelling guide wire are configured to receive the access sheaths. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertization of a side branch or target vessel through the fenestration or be used to stabilize the access sheath during catheterization, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.

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Номер записи: 25
03-01-2019 дата публикации

CATHETER-GUIDED REPLACEMENT VALVES APPARATUS AND METHODS

Номер: US20190000619A1
Автор: Clark Jason K., Quijano Rodolfo C.
Принадлежит: NAVIGATE CARDIAC STRUCTURES, INC.

The present invention is a replacement mitral valve suitable for catheter-based deployment. The replacement mitral valve has structure and dimensions that are uniquely suited to engage the annulus surrounding the native mitral valve and to restore normal function to a diseased valve. The invention describes the structures and functions of a replacement mitral valve and methods that are adapted for minimally invasive, catheter-based deployment of the valve. 1. A bioprosthetic heart valve assembly having a geometric configuration for implantation in an annulus of the native heart valve comprising:a. a tubular structure having an entry opening end and an exit opening at opposite ends thereof, wherein the tubular structure is comprised of an expandable stent structure comprised of a plurality of interconnected elements and having a compressed configuration and an expanded configuration, and wherein a plurality of the elements are comprised of extension that deploy from the external circumferential surface of the stent in the expanded configuration, wherein the tubular structure has a continuously tapered diameter along a length thereof such that the entry opening has a smaller diameter than the exit opening,b. a biocompatible material affixed to an inner annular region between the entry opening and the exit opening, andc. a valve comprised of a plurality of leaflets capable of forming a fluid tight seal at the apposing edges thereof wherein the circumference of the plurality of leaflets together form a fluid tight seal about an interior of the valve assembly between the entry opening and the exit opening,2. The bioprosthetic heart valve assembly of claim 1 , wherein the plurality of leaflets are sutured to the biocompatible material.3. The bioprosthetic heart valve of assembly claim 1 , wherein the extensions protrude from an axis parallel to the stent surface at the first end and the second end respectively.4. The bioprosthetic heart valve assembly of claim 1 , wherein ...

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Номер записи: 26
04-01-2018 дата публикации

STENT DELIVERY SYSTEM

Номер: US20180000620A1
Автор: Folan Martyn G., FORDE BRYAN M., KEATING THOMAS M., RIGALOS GERASIMOS, WALSH MICHAEL Gerard
Принадлежит:

Stent delivery device including an inner member having a distal tip, a stent support member, and a stent disposed over a stent receiving region of the stent support member. An elongated outer sheath is slidably disposed over the inner member and the stent. The stent delivery device includes a distal junction removably coupling the distal end of the outer sheath to the distal tip, where the distal junction is actuatable to decouple the outer sheath from the distal tip. The stent delivery device includes a proximal junction removably coupling a distal portion of the outer sheath to a proximal portion of the outer sheath, where the proximal junction is actuatable to decouple the distal portion of the outer sheath from the proximal portion of the outer sheath. The distal and proximal junctions may be separately actuatable by rotating the inner member relative to the proximal portion of the outer sheath. 1. A stent delivery system comprising:an elongated inner member extending between a distal tip and a proximal end;a stent support member disposed over the inner member and defining a stent receiving region, the inner member slidable within the stent support member;at least one stent surrounding the stent receiving region of the stent support member, the stent having a collapsed configuration and an expanded configuration;an elongated outer sheath slidably disposed over the inner member, the outer sheath extending between a distal end and a proximal end, the outer sheath including a proximal portion and a distal portion located distal of the proximal portion, the distal portion of the outer sheath surrounding the stent to restrain the stent in the collapsed configuration;a proximal junction detachably coupling the distal portion of the outer sheath to the proximal portion of the outer sheath, the proximal junction being actuatable to selectively uncouple the distal portion of the outer sheath from the proximal portion of the outer sheath; anda distal junction detachably ...

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Номер записи: 27
05-01-2017 дата публикации

Scaffold loading and delivery systems

Номер: US20170000634A1
Автор: Anthony Prostrollo, Danielle Peterson, Garrett Prahl, Jonathan Merlo, Lee Core, Marc Helmick, Michele Roggemann, Quyhn Pham, Randall Beyreis, Ross Paulson
Принадлежит: Individual

This disclosure describes, inter alia, materials, devices, kits and methods that may be used for loading scaffolds into delivery devices and delivery of scaffolds into the body of a patient, including delivery of scaffolds to the sinuses for the treatment of chronic sinusitis, among other purposes.

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Номер записи: 28
13-01-2022 дата публикации

PROSTHETIC HEART VALVE DELIVERY APPARATUS

Номер: US20220008200A1
Автор: Alon David, Jafari Mohammad, Liu Jun, Pesce Luca, Popp Michael J.
Принадлежит:

Certain embodiments of the present disclosure provide a prosthetic valve (e.g., prosthetic heart valve) and a valve delivery apparatus for delivery of the prosthetic valve to a native valve site via the human vasculature. The delivery apparatus is particularly suited for advancing a prosthetic heart valve through the aorta (i.e., in a retrograde approach) for replacing a diseased native aortic valve. The delivery apparatus in particular embodiments is configured to deploy a prosthetic valve from a delivery sheath in a precise and controlled manner at the target location within the body. 1. A method comprising:positioning a catheter portion of a delivery device within a patient's vasculature, the catheter portion comprising a sheath and an inner shaft, with at least a portion of the inner shaft positioned within the sheath, wherein the inner shaft supports a radially collapsed prosthetic heart valve mounted thereon and the inner shaft has a nose cone attached to a distal end thereof, and wherein the sheath is covering the radially collapsed prosthetic heart valve;positioning a handle of the delivery device outside the patient with the handle coupled to the catheter portion, wherein the handle comprises a sheath actuator that is operatively coupled to the sheath, and wherein the inner shaft extends through the handle and is fixedly coupled to a shaft retractor;with the shaft retractor in a locked positioned relative to the handle, operating the sheath actuator to retract the sheath proximally relative to the inner shaft to uncover the prosthetic heart valve and allow the prosthetic heart valve to radially expand within the patient;pressing a portion of the shaft retractor radially inwardly to unlock the shaft retractor from the handle; andwith the prosthetic heart valve radially expanded and the shaft retractor unlocked from the handle, moving the shaft retractor proximally relative to the handle to pull the inner shaft and nosecone proximally relative to the sheath.2 ...

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Номер записи: 29
01-01-2015 дата публикации

STENT KIT

Номер: US20150005864A1
Автор: Okuma Nobuaki
Принадлежит:

In a stent kit in which a stent tube has an arc-shaped part at one or both ends, an inner catheter includes an arc-shaped part fitting in, and conforming to, each arc-shaped part of the stent tube. Because of the conforming shapes, the stent tube is not deformed by the inner catheter even if the inner catheter remains within the stent tube over a long time. Consequently, the arcuate shape of the arc-shaped part or parts of the stent tube are reliably restored when the inner catheter is pulled out. 1. A stent kit comprising:a stent tube having first and second ends and having an arc-shaped part at least at one of said ends; andan inner catheter fitting into said stent tube and having an arc-shaped part having the same shape as, and fitting within, said at least one arc-shaped part of said stent tube.2. A stent kit as claimed in claim 1 , further comprising a straight cylindrical member in which said stent tube can be inserted.3. A stent kit as claimed in claim 1 , further comprising a pusher catheter located adjacent one of said first and second ends of said stent tube and aligned with the portion of said stent tube at said one of said first and second ends claim 1 , said inner catheter extending from within the pusher catheter into the stent tube claim 1 , and further comprising coupling means for coupling said stent tube to said pusher catheter.4. A stent kit as claimed in claim 3 , further comprising a straight cylindrical member in which said stent tube can be inserted.5. A stent kit as claimed in claim 3 , wherein:said coupling means is composed of a filament extending through a radial opening formed in one of said pusher catheter and said stent tube, said filament having a knot tied therein, and a catching hole formed in a portion of a wall of the other of said stent tube and said pusher catheter at a location adjacent said one of said first and second ends of said stent tube; andwherein said knot fits loosely in said catching hole, and is supported, and ...

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Номер записи: 30
11-01-2018 дата публикации

CONTROLLED TIP RELEASE STENT GRAFT DELIVERY SYSTEM AND METHOD

Номер: US20180008401A1
Автор: Glynn Brian, Peterson Susan Rea
Принадлежит:

An apparatus and method of deploying a stent graft having a proximal anchor stent ring includes restraining proximal apexes of the proximal anchor stent ring between a spindle body of a spindle and a control release sleeve of a tapered tip. The control release sleeve is advanced relative to the spindle to release a first proximal apex through an opening in the control release sleeve while the remaining proximal apexes remain restrained by the control release sleeve. The control release sleeve is further advanced relative to the spindle to release the remaining proximal apexes from the control release sleeve. In another example, a stent capture fitting has variable length stent capture fitting arms. As the stent capture fitting is retracted, the proximal apexes of the proximal anchor stent ring are sequentially exposed from and released by the variable length stent capture fitting arms. By using the control release sleeve or the stent capture fitting, controlled sequential release of the proximal apexes is achieved. 129-. (canceled)30: A stent graft delivery system comprising:a control release sleeve, said control release sleeve comprising:a first circumferential edge; anda second circumferential edge;a spindle comprising spindle pins comprising:a first spindle pin; anda second spindle pin, wherein prior to motion of said control release sleeve relative to said spindle pins, a first distance between said first spindle pin and said first circumferential edge is less than a second distance between said second spindle pin and said second circumferential edge.31: The stent graft delivery system of wherein said control release sleeve comprises stent capture fitting arms.32: The stent graft delivery system of wherein said stent capture fitting arms comprise a first stent capture fitting arm having a length greater than a second stent capture fitting arm of said stent capture fitting arms.33: The stent graft delivery system of wherein said first circumferential edge is at a ...

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Номер записи: 31
10-01-2019 дата публикации

DELIVERY DEVICE AND METHOD OF DELIVERY

Номер: US20190008667A1
Автор: Longo Michael
Принадлежит:

A delivery device can provide sequential delivery of a plurality of intraluminal devices or tacks held in a compressed state on the delivery device. Delivery platforms on the delivery device can hold a tack in a compressed position and be positioned between annular pusher bands that may also be radiopaque markers. The annular pusher bands can be made of wire or sections of material to increase flexibility while remaining radiopacity. 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. A tack deployment method can include allowing a self-expanding tack to expand, aligning the post deployment dilation device under the tack, and causing the post deployment dilation device to expand radial to push outward on the tack. 2. The delivery device of claim 1 , wherein the delivery platform comprises a plurality of expansion filament recesses claim 1 , wherein each expansion filament of the plurality of expansion filaments is paired with one expansion filament recess of the plurality of expansion filament recesses.3. The delivery device of claim 1 , wherein the plurality of expansion filaments are configured to lie within the plurality of expansion filament recesses when in the pre-actuated position such that the plurality of expansion filaments lie substantially below the surface of the deployment platform.4. The delivery device of claim 1 , wherein the plurality of expansion filament recesses transition to a plurality of expansion filament lumens substantially at the proximal end of the delivery platform.5. The delivery device of claim 1 , wherein the first end is a distal end of each expansion filament of the plurality of expansion filaments that is fixed at a distal end of the deployment platform.6. The delivery device of claim 5 , wherein a proximal end of each expansion filament of the plurality of expansion filaments is configured to be pushed distally and cause radial ...

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Номер записи: 32
09-01-2020 дата публикации

Loading tool and method for loading a prosthesis

Номер: US20200008941A1
Автор: Helmut Straubinger, Nadine STAPPENBECK
Принадлежит: Tricares SAS

The present invention relates to a heart valve prosthesis loading device and a method for loading a heart valve prosthesis onto a delivery system.

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Номер записи: 33
18-01-2018 дата публикации

STENT RECONSTRAINMENT SYSTEM FOR MINIMAL VOLUME IN LOW PROFILE DELIVERY SYSTEM

Номер: US20180014957A1
Автор: HARRIS Colby, Root Jonathan
Принадлежит:

A stent delivery device is provided that includes an outer tubular member, an intermediate tubular member disposed and slidable within a lumen of the outer tubular member, and a plurality of elongate members slidable within the intermediate tubular member. The plurality of elongate members have distal end structures that are moveable between a stent retaining configuration to selectively retain a stent and a stent releasing configuration to selectively release the stent. 1. A stent delivery device comprising:an outer tubular member having a distal end, a longitudinal length, and defining a lumen;an intermediate tubular member having a distal end and defining a lumen, the intermediate tubular member disposed and slidable within the outer tubular member lumen; anda plurality of elongate members slidable within one or more lumens of the intermediate tubular member, the plurality of elongate members having distal end structures moveable between a stent retaining configuration and a stent releasing configuration.2. The stent delivery device of claim 1 , wherein the distal end structures are in the stent retaining configuration when the distal end structures are extended distal of the distal end of the intermediate tubular member and in the stent releasing configuration when the distal end structures are retracted proximally within the intermediate tubular member.3. The stent delivery device of claim 1 , wherein the distal end structures are configured to retain a stent when the stent is in both a fully expanded and a constrained configuration.4. The stent delivery device of claim 1 , wherein the one or more lumens of the intermediate tubular member includes a plurality of channels extending longitudinally along the intermediate tubular member lumen claim 1 , wherein each of the plurality of elongate member extends through a separate channel.5. The stent delivery device of claim 4 , wherein the distal end structures include hooks configured to retain a suture connected to ...

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Номер записи: 34
17-01-2019 дата публикации

TRANSCATHETER INSERTION SYSTEM

Номер: US20190015232A1
Автор: BURROW Dan, HAARSTAD Phil, KEILLOR Matthew, PATTERSON Shawn, Schmidt Steve, TUSETH Vegard
Принадлежит:

A transcatheter insertion system for the insertion of an intracorporeal device using an insertion device, wherein the system includes an outer sheath arranged and configured to form a passageway for the intracorporeal device and/or the insertion device and the outer sheath includes for guiding the insertion device. The present disclosure also relates to an outer sheath and an insertion device for use with the system. 127.-. (canceled)28. A method for the transcatheter insertion of an intracorporeal device into a patient , comprising:(a) puncturing at least one anatomical wall separating anatomical compartments;(b) delivering the intracorporeal device into the patient; and(c) implanting the intracorporeal device through the anatomical wall(s);wherein steps (a), (b) and (c) are carried out using a transcatheter insertion system comprising an insertion device and an outer sheath arranged and configured to form a passageway for the intracorporeal device and/or the insertion device and said outer sheath comprises means for guiding the insertion device.29. The method according to claim 28 , comprising the step of guiding the insertion device using said outer sheath arranged and configured to provide a passageway for the intracorporeal device and/or the means for guiding the insertion device.30. The method of claim 29 , wherein the guiding means is positioned adjacent to or at a distal end of the outer sheath.31. The method of claim 29 , wherein the guiding means is substantially ring-shaped.32. The method according to claim 29 , wherein the inner dimensions of the guiding means is smaller than the inner dimensions of the outer sheath.33. The method according to claim 29 , wherein the guiding means comprises a substantially rigid material.34. The method according to claim 29 , wherein the guiding means comprises an inflatable balloon.35. The method according to claim 28 , further comprising the step of detecting and/or visualising the transcatheter insertion system.36. The ...

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Номер записи: 35
21-01-2021 дата публикации

System for deploying a vascular bypass prosthesis

Номер: US20210015644A1
Автор: Bernard Segers
Принадлежит: Corquest Medtech SRL

Systems are provided for deploying a vascular prosthesis having at least one stent with an end portion configured to be introduced into a vessel and a sheath connected thereto. The systems include a first expandable balloon for shaping and stabilizing the vascular prosthesis in the vessel, a second expandable balloon for sealing a junction between the end portion of the vascular prosthesis and the vessel, and means for expanding the first and second expandable balloons.

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Номер записи: 36
15-01-2015 дата публикации

Stent-valves for valve replacement and associated methods and systems for surgery

Номер: US20150018938A1
Автор: Ludwig K. Von Segesser, Stephane Delaloye
Принадлежит: Symetis SA

Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.

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Номер записи: 37
10-02-2022 дата публикации

Cardiac Valve Loading Devices and Systems

Номер: US20220039949A1
Автор: Chu Diana, Gregg Peter, Haynes Evelyn, von Oepen Randolf
Принадлежит: Cephea Valve Technologies, Inc.

A loading device configured to radially collapse an expandable medical implant may include an operating handle having an opening therein extending along a longitudinal axis, a native sheath coupled to the operating handle and partially extending into the opening, such that the native sheath is configured to translate relative to the operating handle parallel to the longitudinal axis, a removable sheath removably coupled to the native sheath, an actuation rod extending parallel to the longitudinal axis at least partially through the opening, a lumen of the native sheath, and a lumen of the removable sheath, a distal end of the actuation rod being configured to be removably coupled to the expandable medical implant, and a first control element movable relative to the operating handle and coupled to the native sheath, the first control element being configured to translate the native sheath and the removable sheath relative to the operating handle. 1. (canceled)2. A loading device configured to radially collapse an expandable medical implant , the loading device comprising:an operating handle having a proximal end, a distal end, a longitudinal axis and an opening extending along the longitudinal axis;a native sheath having a proximal end and a distal end, the proximal end of the native sheath being coupled to the distal end of the operating handle and partially extending into the opening of the operating handle, the native sheath being configured to translate relative to the operating handle parallel to the longitudinal axis;a removable sheath having a proximal end and a distal end, the proximal end of the removable sheath being removably coupled to the distal end of the native sheath;an actuation rod having a proximal end and a distal end, the actuation rod extending parallel to the longitudinal axis at least partially through the opening of the operating handle, a lumen of the native sheath, and a lumen of the removable sheath, the distal end of the actuation rod ...

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Номер записи: 38
23-01-2020 дата публикации

ENDOVASCULAR PROSTHESIS DELIVERY DEVICE

Номер: US20200022830A1
Автор: Fung Eric Soun-Sang, Tippett Jonathan G.
Принадлежит:

There is described an endovascular prosthesis delivery device. The subject endovascular prosthesis delivery device comprises a combination of a delivery frame element and a hub insert element that are secured to one another by a first retention element. At a distal portion of the delivery frame element, there is a prosthesis attachment zone for coupling to an endovascular prosthesis. When it is desired to deploy the endovascular prosthesis, the first retention element is broken in a manner to allow relative movement between the hub insert element and the delivery frame element. A pull wire assembly is secured with respect to the hub insert element and comprises a pull wire which is coupled to the endovascular prosthesis in the prosthesis attachment zone of the delivery frame element. Once the first retention element is broken by the physician (this is done when the endovascular prosthesis is in the correct position for deployment), the physician can then retract the hub insert which has the effect of retracting pull wire from the prosthesis attachment zone of the delivery frame element. The endovascular prosthesis and the endovascular prosthesis delivery device are now detached from one another and the latter may be withdrawn from the patient. 1. An endovascular prosthesis delivery device comprising:(a) a hub insert element disposed near a proximal portion of the delivery device;(b) a delivery frame element disposed near a distal portion of the delivery device and exteriorly with respect to at least a portion of the hub insert element, a distal portion of the delivery frame element comprising a prosthesis attachment zone;(c) a pull wire assembly secured with respect to the hub insert element and disposed interiorly with respect to the delivery frame element, the pull wire assembly comprising a pull wire have a distal portion disposed in the prosthesis attachment zone for attachment to a prosthesis; and(d) a first retention element disposed exteriorly with respect to ...

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Номер записи: 39
02-02-2017 дата публикации

DELIVERY SYSTEM FOR A PROSTHESIS

Номер: US20170027727A1
Автор: Mair Jutta, Wuebbeling Martin
Принадлежит:

The invention provides a delivery system for a prosthesis, said delivery system comprising a catheter shaft with a distal end, a proximal end and a longitudinal axis, a space for a prosthesis with a distal end and a proximal end, the space being at the distal end of the catheter shaft, a sheath with a proximal end and a distal end, the sheath being disposed at the distal end of the catheter shaft so as to surround the space, a pusher element attached to the distal end of the catheter shaft and arranged at the proximal end of the space for abutting prosthesis, a pull element with a longitudinal axis, the pull element running the length of the catheter shaft and having a distal end attached to the proximal end of the sheath and a proximal end for pulling the pull element proximally, thereby retracting the sheath proximally relative to the prosthesis space, and at least one fixation element having a proximal end and a distal end and being disposed within a flexible portion of the length of the shaft that lies between the proximal end of the sheath and the proximal end of the catheter shaft. The fixation element serves to limit a radial distance between the axis of the pull element outside the shaft and the axis of the catheter shaft along the length of the fixation element whenever a tensile stress in the pull element results in an endwise compressive stress on the shaft and a tendency of the shaft to bow, relative to the pull element. 1. A system comprising:a shaft having shaft proximal and distal ends;a prosthesis space;a sheath disposed around the space;a pull element attached to the sheath;anda fixation element disposed on the shaft, between the sheath proximal end and the shaft proximal end.2. The system of further comprising a plurality of fixation elements distributed along the shaft.3. The system of wherein at least one of the plurality of fixation elements comprises a first lumen.4. The system of wherein the plurality of fixation elements comprises a second ...

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Номер записи: 40
04-02-2016 дата публикации

Insertion device for insertion of a medical implant

Номер: US20160030712A1
Автор: Amir Fargahi
Принадлежит: BIOTRONIK AG

An insertion device for the insertion of a medical implant into a human and/or animal body. The device has at least one outer shaft, which has a proximal end and a distal end opposite the proximal end. A receiving element is connected to the outer shaft, for the implant. The outer shaft and the receiving element are surrounded at a transition between the outer shaft and receiving element by a locally placed sleeve, which dampens mechanical tensile and/or compressive stresses.

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Номер записи: 41
17-02-2022 дата публикации

PROSTHESIS CONNECTING DEVICE

Номер: US20220047386A1
Автор: Murphy Brian, Stappenbeck Nadine, Straubinger Helmut
Принадлежит:

The invention relates to a connector device and a method for loading a prosthesis onto a delivery system as well as a method for delivery of the prosthesis and optionally retrieval of the prosthesis. 1. A connecting device comprising at least two receiving means carried by a receiving means holder for receiving a connecting means of a medical device (prosthesis or replacement heart valve prosthesis) and at least two means for accelerating the connection/the introduction of the connecting means with (into) the receiving means , optionally 3 , 4 , or 6 means for accelerating the connection/the introduction of the connecting means.2. The connecting device according to wherein the connecting means is an eyelet of a medical device or/and the means for accelerating the connection/the introduction is a leaf spring.3. The connecting device of claim 1 , wherein the connecting device comprises three leaf springs and three receiving means claim 1 , or 4 claim 1 , 5 claim 1 , or 6 leaf springs and 4 claim 1 , 5 claim 1 , or 6 receiving means.4. The connecting device according to claim 1 , wherein the means for accelerating the connection/introduction is made of metal claim 1 , plastic claim 1 , or a composite material.5. The connecting device of claim 1 , wherein the receiving means holder is positioned around a core.6. The connecting device of claim 5 , wherein the core carries the at least two means for accelerating the connection/introduction claim 5 , optionally 3 claim 5 , 4 claim 5 , 5 claim 5 , or 6 of the means for accelerating the connection/introduction.7. The connection device of claim 1 , wherein each receiving means aligned with a corresponding one of the means for accelerating the connection/introduction of the connecting means.8. The connecting device of claim 1 , wherein the at least two receiving means are releasable covered by a shaft or a loading tube.9. A method for loading a prosthesis onto a delivery device including the connecting device of claim 1 , ...

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Номер записи: 42
31-01-2019 дата публикации

TRANS-AORTIC PROXIMAL AORTIC STENT GRAFT

Номер: US20190029855A1
Автор: Gross Justus
Принадлежит:

A trans-aortic proximal aortic stent graft [TAPAS graft] () for introducing into a blood vessel. A a tubular sheath which encases a folded self-expanding prosthesis () from the inside as well as from the outside such that a sheath outer wall () of the sheath lies against the prosthesis () from the outside and a sheath inner wall () lies against the prosthesis from the inside and keeps the prosthesis () folded. The prosthesis () is surrounded by the sheath at the distal end in the transition from the sheath inner wall () to the sheath outer wall (), and the prosthesis () is provided with an anchor () at the proximal end. Also, a method for using a trans-aortic proximal aortic stent graft [TAPAS graft] (). 174243443448. A Trans Aortic Proximal Aortic Stent Graft [TAPAS-Graft] () for insertion into a blood vessel , comprising a tubular sheath surrounding a folded , self-expanding prosthesis () both internally and externally , such that a sheath outer wall () of the sheath lies against the outside of the prosthesis () and a sheath inner wall () lies against the inside of the prosthesis and holds the prosthesis () folded , wherein a distal end of the prosthesis () is surrounded by the sheath in a transition from the sheath inner wall () to the sheath outer wall () and the prosthesis () is provided with an anchor () at the proximal end.275846. The Trans Aortic Proximal Aortic Stent-Graft [TAPAS-Graft] () for insertion into a blood vessel according to claim 1 , wherein in the sheath a guide () claim 1 , in particular a guide catheter claim 1 , is introduced claim 1 , which is releasably connected to the anchor () on the prosthesis () via a releasable fixation with release mechanism () connectable.376. The Trans Aortic Proximal Aortic Stent Graft [TAPAS-Graft] () for insertion into a blood vessel according to claim 2 , wherein the releasable fixation with release mechanism () is designed as a cord-splint mechanism.47. A method of using a Trans Aortic Proximal Aortic Stent- ...

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Номер записи: 43
31-01-2019 дата публикации

CAPTURE TUBE MECHANISM FOR DELIVERING AND RELEASING A STENT

Номер: US20190029856A1
Автор: LORENZO Juan, SLAZAS ROBERT
Принадлежит:

A capture tube mechanism for delivering and releasing a self-expanding stent includes a core wire on which a proximal portion of the stent is removably retained by a distal portion of a tubular capture sleeve. In one embodiment, one or more elongated members extending through corresponding apertures through the capture sleeve and out the distal end of the capture sleeve can be pulled to split the tubular capture sleeve to release the stent. In another embodiment, the capture sleeve can be pulled proximally over one or more stop members provided on the core wire to release the stent. 1. Apparatus for delivering and releasing a self-expanding stent through a catheter to a treatment site in a patient's vasculature , comprising:a core wire having a proximal portion, a distal portion, and an intermediate portion located between said proximal and distal portions of said core wire;a self-expanding stent having a proximal end, a proximal portion and an inner lumen, said distal portion of said core wire extending through at least a portion of said inner lumen of said self-expanding stent, with said proximal portion of said self-expanding stent disposed over said intermediate portion of said core wire;a tubular capture sleeve having a lumen, a proximal portion, a distal portion and a distal end, said distal portion of said tubular capture sleeve disposed over said proximal portion of said self-expanding stent, and said distal portion of said tubular capture sleeve being configured to removably retain said proximal portion of said self-expanding stent within said lumen of said tubular capture sleeve and on said intermediate portion of said core wire, said tubular capture sleeve including at least one aperture extending through said distal portion of said tubular capture sleeve at a location aligned with the proximal end of said self-expanding stent; andat least one elongated member having first and second ends and an intermediate portion between said first and second ends of ...

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Номер записи: 44
30-01-2020 дата публикации

SYSTEMS AND METHODS OF MANUFACTURING AND USING AN EXPANSION RING

Номер: US20200030125A1
Автор: KRIER Christopher, PEDROSO Pedro
Принадлежит: DePuy Synthes Products, Inc.

A method of connecting an expansion ring to at least one end of a braided implant is disclosed. The method can include positioning the braided implant about a tube; everting an end portion of the braided implant over a first end of the tube; assembling an expansion ring to the braided implant, the expansion ring being a multi-leaved expansion ring including clips terminating with an open-ended coupling opening. The openings can be pushed over a set of intersecting wires of the braided implant at respective circumferential locations on or adjacent the first end of the tube. The method can also include closing the openings over the set of intersecting wire; trimming ends of the braided implant; and reversing eversion of the braided implant thereby positioning the expansion ring internal to the braided implant. 1. A braided implant for flow diversion in vasculature , the braided implant formed by a plurality of braided members with interstices formed therebetween , the braided implant comprising:an expansion ring internally connected to the braided implant at a first end, the expansion ring comprising a frame defined by a plurality of interconnected support leaves selectively positioned to impart an outwardly expanding radial force to the braided implant, each leaf comprising:a plurality of legs joined at an intersection and connected to one of the other support leaves at an opposite intersection;a locking portion connected over a set of intersecting wires of the braided implant at respective circumferential locations on or adjacent the first end of the tube, andan opening defined between the locking portion for connecting to the set of intersecting wires,wherein the braided implant is connected to the expansion ring by the following steps:positioning the braided implant about a tube;everting an end portion of the braided implant over a first end of the tube;assembling the expansion ring to the braided implant by pushing the opening of the leaves over the set of ...

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Номер записи: 45
09-02-2017 дата публикации

Self-Expanding Bridging Stent with Anchoring Projections and Methods for Use

Номер: US20170035587A1
Автор: Kelly Patrick W.
Принадлежит:

The present disclosure provides a stent graft comprising (a) a self-expandable stent structure having a first end and a second end, wherein the self-expandable stent structure defines a lumen, (b) at least one restraint configured to be coupled to an exterior surface of the stent graft in a compressed condition, and wherein the at least one restraint is configured to be broken to permit the stent graft to transition to an expanded condition, and (c) a first plurality of anchoring projections coupled to the exterior surface of the stent graft adjacent to the first end of the self-expandable stent-structure. 1. A stent graft , comprising:a self-expandable stent structure haying a first end and a second end, wherein the self-expandable stent structure defines a lumen;at least one restraint coupled to an exterior surface of the stent graft in a compressed condition, and wherein the at least one restraint is configured to be broken to permit the stent graft to transition to an expanded condition; anda first plurality of anchoring projections coupled to the exterior surface of the stent graft adjacent to the first end of the self-expandable stent structure.2. The stent graft of claim 1 , further comprising:a second plurality of anchoring projections coupled to the exterior surface of the stent graft adjacent to the second end.3. The stent graft claim 2 , wherein at least one of the first plurality of anchoring projections and at least one of the second plurality of anchoring projections each comprise a longitudinally arranged stent haying one or more crimps.4. The stent graft of claim 3 , wherein the one or more crimps of each of the longitudinally arranged stents extend radially outward when the stent graft is in the expanded condition.5. The stent graft of claim 3 , wherein the one or more crimps of each of the longitudinally arranged stents extend radially outward a distance ranging from about 0.1 mm to about 3 mm from the exterior surface of the stent graft when the ...

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Номер записи: 46
09-02-2017 дата публикации

DELIVERY CATHETER FOR ENDOVASCULAR DEVICE

Номер: US20170035590A1
Автор: Chobotov Michael V., Li Cheng, Morehous Reva, Poppe Carl H., WATSON JAMES R., Woodson Teresa
Принадлежит:

Some embodiments relate in part to endovascular prostheses and delivery catheter systems and methods for deploying same. Embodiments may be directed more specifically to graft bodies having self-expanding members, including inflatable graft bodies, and catheters and methods for deploying same within the body of a patient. 1. A delivery catheter for delivery of an endoluminal prosthesis , comprising:an elongate shaft with sufficient column strength for percutaneous advancement within a patient's body lumen, the elongate shaft including a proximal section and a lumen extending therein;a plurality of releasable belts disposed on the proximal section of the elongate shaft and configured to releasably constrain a self-expanding member of an endoluminal prosthesis;a plurality of elongate release members in communication with a distal end of the elongate shaft and including a proximal section configured to releasably secure at least one respective releasable belt while said releasable belt is in a configuration that constrains at least a portion of an endoluminal prosthesis; andthe elongate shaft comprising an elongate release wire sleeve disposed within the lumen extending within the elongate shaft, the elongate release wire sleeve including a low friction material and extending from a distal section to a proximal section of the elongate shaft, said elongate release wire sleeve comprising a separate lumen for each release member.2. The delivery catheter of wherein the low friction material of the elongate release wire sleeve comprises a fluoropolymer.3. The delivery catheter of wherein the fluoropolymer of the elongate release wire sleeve comprises PTFE.4. The delivery catheter of wherein the PTFE of the elongate release wire sleeve comprises a shore hardness of about 40 D to about 70 D5. The delivery catheter of wherein the elongate release member comprises an elongate release wire.6. The delivery catheter of wherein the delivery catheter is configured to deliver an ...

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Номер записи: 47
07-02-2019 дата публикации

Stent and Securely-Installed Artificial Valve Replacement Device Having Same

Номер: US20190038440A1
Автор: Lei Rongjun, ZHANG Qiming, ZHANG Zhifei
Принадлежит: Venus Medtech (Hangzhou) Inc.

A stent and a securely-installed artificial valve replacement device having the same, the stent being of a cylindrical structure; the top of the stent is provided with a fixed ear (); the fixed ear () has a neck portion () connected to the top of the stent, and a head portion () engaged with the fixed head of the stent; the head portion () has a bending structure for improving the overall radial thickness; and the artificial valve replacement device is comprised of a stent and a prosthetic valve fixed on the stent. The stent with a bending structure overcomes the problem of easily disengaging from the fixed head of the stent, while not affecting the release of the stent. 110-. (canceled)11. A tubular foldable stent , comprising , along a longitudinal direction:a first section;a second section; anda valve section connected between the first section and the second section, the valve section configured for attaching a prosthesis valve therein, a neck portion connected to the end of the first section; and', 'a head portion;, 'wherein the first section has at least one fixed ear provided at one end thereof and spaced-apart from the valve section, and each fixed ear is T-shaped and compriseswherein each head portion has a width greater than a width of the neck portion in a circumferential direction of the stent, andwherein each head portion is curved in the circumferential direction.12. The tubular foldable stent according to claim 11 , wherein each head portion is entirely or partially curved.13. The tubular foldable stent according to claim 11 , wherein a ratio of an overall radial thickness of the head portion to a radial thickness of the neck portion is in the range of 1.2 to 3:1.14. The tubular foldable stent according to claim 11 , wherein the head portion is arc-shaped claim 11 , with a concave surface facing an axis of the stent.15. The tubular foldable stent according to claim 11 , wherein the head portion is wave-shaped in the circumferential direction.16. The ...

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Номер записи: 48
18-02-2016 дата публикации

HANDLE FOR MEDICAL DEVICE DEPLOYMENT

Номер: US20160045348A1
Автор: Sokel Justin W., Storey Adam T., Van Cleave Jared L.
Принадлежит:

A delivery system for endoluminal delivery of an expandable device comprising a catheter having a proximal end and an opposite distal end configured to support an expandable device, a primary sheath having a delivery position in which the primary sheath constrains the expandable device toward a collapsed configuration suitable for endoluminal delivery, and a handle having an actuator for axially displacing the primary sheath from the delivery position, wherein the handle includes a knob for operating one or more functions of the handle which is initially hidden to prevent use by a user and then revealed as a result of displacement of the primary sheath from delivery position so as to allow subsequent actuation of the knob by the user. 1. A delivery system for endoluminal delivery of an expandable device , said delivery system comprisinga catheter having a proximal end and an opposite distal end, the distal end configured to support an expandable device;a primary sheath having a delivery position in which the primary sheath constrains the expandable device toward a collapsed configuration suitable for endoluminal delivery;a handle having an actuator for axially displacing the primary sheath from the delivery position, the handle having a knob for operating one or more functions of the handle, wherein the knob is initially hidden to prevent use by a user and then revealed as a result of displacement of the primary sheath from delivery position so as to allow subsequent actuation of the knob by the user.2. The delivery system as set forth in including a secondary sheath having a delivery position in which the secondary sheath limits expansion of the expandable device to an intermediate configuration larger than the constrained configuration and smaller than a fully deployed configuration.3. The delivery system as set forth in claim 2 , wherein the one or more functions of the handle includes deployment of the secondary sheath to allow deployment of the expandable ...

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Номер записи: 49
01-05-2014 дата публикации

Low Profile Stepped Delivery System

Номер: US20140121755A1
Автор: Jacqueline Farag, Robert M. Eells
Принадлежит: Cook Medical Technologies LLC

A low profile stepped delivery system for retracting trigger wires from a prosthesis to release the prosthesis from a delivery device. A rod is disposed within an axial bore of a handle. The rod has a first longitudinal surface and a second longitudinal surface. A first engagement mechanism is disposed on the first longitudinal surface and a second engagement mechanism disposed on the second longitudinal surface. A wire coiling assembly is disposed at an end of the of the handle and comprises a first rotary gear that is adapted to be rotated by the first engagement mechanism, a second rotary gear that is adapted to be rotated by the second engagement mechanism, a first wire spool that is coupled to a rotation of the first rotary gear, and a second wire spool that is coupled to the rotation of second rotary gear. The first wire spool is configured to secure a first trigger wire and the second wire spool is configured to secure a second trigger wire.

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Номер записи: 50
14-02-2019 дата публикации

STENT DELIVERY SYSTEM

Номер: US20190046344A1
Автор: Eisold Gerd, Maier Jan
Принадлежит: Joline GmbH & Co. KG

A system comprising a sluice and a catheter. The catheter including an inner, a middle and an outer tube. A stent is disposed in a distal-end portion of the catheter between the inner and outer-tube. The middle-tube ends distally at the proximal end of the stent. An actuating unit having a drive unit provided in the proximal region of the catheter for releasing the stent. A connecting portion is provided between the drive unit and the sluice. The drive unit is cooperating with the middle-tube and the connecting portion where the drive unit is operated the middle-tube is displaced in the distal direction and the actuating unit together with the outer-tube attached thereto is displaced in the proximal direction. The inner-tube is cooperating with the middle-tube and/or the connecting portion and/or the drive unit in such a way that the inner-tube is displaced at least to some extent relative to the actuating unit. 1. A system for inserting a compressed , self-expandable stent through a sluice disposed on a blood vessel into the blood vessel and for releasing the stent in the blood vessel , the system comprising:the sluice; and, an inner tube,', 'a middle tube, and', 'an outer tube, wherein, 'a catheter, said catheter includingthe stent is disposed in a distal end portion of the catheter between the inner tube and the outer tube and the middle tube ends distally at the proximal end of the stent, and with an actuating unit having a drive unit provided in the proximal region of the catheter for releasing the stent, wherein a connecting portion is provided between the drive unit and the sluice, wherein the drive unit is cooperating with the middle tube and the connecting portion in such a way, that when the drive unit is operated the middle tube is displaced in the distal direction and the actuating unit together with the outer tube attached thereto is displaced in the proximal direction, and wherein the inner tube is cooperating with the middle tube and/or the connecting ...

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Номер записи: 51
13-02-2020 дата публикации

Bifurcated implant delivery system

Номер: US20200046531A1
Автор: Karunakaravel KARUPPASAMY
Принадлежит: CLEVELAND CLINIC FOUNDATION

A bifurcated implant delivery system is provided for deploying a bifurcated expandable implant in a patient lumen. A shaft has at least two shaft proximal openings. A shaft distal end has at least two shaft branches longitudinally extending from a shaft body distal end. Each of the shaft branches has a shaft open tip. The shaft has at least one shaft lumen that longitudinally extends between a respective shaft proximal opening and at least one respective shaft open tip. A reinforcing element longitudinally extends from the shaft body distal end. An outer sheath has an outer sheath proximal opening and at least one outer sheath open tip. An outer sheath lumen longitudinally extends between the outer sheath proximal opening and the at least one outer sheath open tip. The outer sheath lumen is for selectively holding at least a portion of the shaft and a bifurcated expandable implant therein.

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Номер записи: 52
13-02-2020 дата публикации

METHOD AND APPARATUSES FOR DEPLOYING AN IMPLANT

Номер: US20200046532A1
Автор: Karuppasamy Karunakaravel
Принадлежит:

An implant delivery system is provided for deploying an expandable implant in a patient lumen. An outer sheath has an outer sheath lumen that extends between an outer sheath proximal opening and an outer sheath open tip. At least one outer sheath side wall opening selectively places an outer sheath outer surface in fluid communication with the outer sheath lumen. At least one outer sheath open slit extends at least partially between the outer sheath open tip and a respective outer sheath side wall opening. A shaft has at least one shaft side wall opening that selectively places a shaft outer surface in fluid communication with at least one shaft lumen. When the shaft is operably joined to the outer sheath, at least a portion of the at least one shaft side wall opening is selectively aligned with a respective outer sheath side wall opening. 1. An implant delivery system , comprising: an outer sheath proximal end having an outer sheath proximal opening,', 'an outer sheath distal end having an outer sheath open tip,', 'an outer sheath outer surface,', 'an outer sheath lumen extending between the outer sheath proximal opening and the outer sheath open tip, the outer sheath lumen for selectively holding at least one expandable implant therein,', 'at least one outer sheath side wall opening selectively placing the outer sheath outer surface in fluid communication with the outer sheath lumen, and', 'at least one outer sheath open slit extending at least partially between the outer sheath open tip and a respective outer sheath side wall opening; and, 'an outer sheath having'} a shaft proximal end having at least one shaft proximal opening,', 'a shaft distal end having a shaft open tip,', 'a shaft outer surface,', 'at least one shaft lumen, and', 'at least one shaft side wall opening selectively placing the shaft outer surface in fluid communication with the at least one shaft lumen;, 'a shaft having'}wherein when the shaft is operably joined to the outer sheath, at least a ...

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Номер записи: 53
13-02-2020 дата публикации

Intraluminal implant delivery system and method

Номер: US20200046533A1
Автор: Daniel SOLAUN, David BLUMENSTYK
Принадлежит: DePuy Synthes Products Inc

Systems, devices, and methods for retracting a pull wire from a hypotube can include positioning a pull wire having an engagement bump on its proximal end within a channel of a device and sliding the pull wire proximally through a channel of a device by moving grippers of the device proximally to engage and slide the bump. Subsequent distal movement of the grippers can result in the grippers disengaging the bump without disturbing the position of the pull wire or causing the pull wire to move distally.

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Номер записи: 54
13-02-2020 дата публикации

System And Method For Implant Delivery

Номер: US20200046535A1
Автор: Lam Cang
Принадлежит: Terumo Corporation

An implant delivery system is described. The implant delivery system utilizes an implant, implant wire, delivery sheath, and a torque device. The torque device may include a cutting element to slit the delivery sheath and a clamp device to fix the position of the implant delivery wire. 1. An implant delivery device for delivering a medical implant operatively connected to an elongated implant wire , comprising: a body member having recessed portions;', 'a mating piece having recessed portions that removably connects to and mates with the body member;', 'a first passage extending through the body member, the first passage comprising recessed area of the body member and recessed area in the mating piece that align with each other, the first passage continuing through the body member;', 'a separator member removably located within the first passage and allowing passage of the elongated implant wire; the separator member comprising a separator tube and a cutting element that is fixed to the tube and positioned proximally of a distal end of the tube;', 'a second passage connecting to the first passage near the cutting element, the second passage extending away from the first passage; the second passage comprising recessed area of the body member and recessed area in the mating piece that mate with each other;', 'a clamp mechanism which selectively presses against the elongated implant wire;', 'wherein the cutting element is positioned in the first passage in between the body member and the mating piece to slit a sheath passing through the first passage and wherein the torque device directs the slit sheath into the second passage while leaving the implant in place., 'a torque device comprising2. The implant delivery device of claim 1 , wherein the clamp mechanism comprises a collet and a screw member that is selectively contactable with said collet claim 1 , so as to increase or decrease the diameter of the collet.3. The implant delivery device of claim 2 , wherein the ...

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Номер записи: 55
22-02-2018 дата публикации

RAPID EXCHANGE STENT DELIVERY SYSTEM

Номер: US20180049900A1
Автор: Derosier Stephen, GIUSTI DAVID C., Griego John A.
Принадлежит:

Medical devices and methods for making and using the same. An example medical device may include an elongate tubular member, an endosurgery stent disposed on the outer surface of the tubular member, a push tube slidably disposed along the outer surface of the tubular member, and a push member slidably disposed in a lumen formed in the tubular member. The push member may be coupled to the push tube. 1. A stent delivery system , comprising:a stent having a lumen formed therein and an opening;a push tube having a lumen formed therein, with the stent in a loaded condition abutting a distal end of the push tube;an elongate tubular member extendable through the lumen of the push tube and the lumen of the stent; anda member extending from the push tube and forming a loop disposable through the opening of the stent and around an inner circumference of the stent lumen, the elongate tubular member passable through the lumen of the stent and the loop of the member in the loaded condition.2. The stent delivery system of claim 1 , wherein the member is a suture.3. The stent delivery system of claim 1 , wherein the push tube includes an opening claim 1 , and the member extends from the push tube opening.4. The stent delivery system of claim 1 , wherein in the loaded condition the elongate tubular member is slidably disposed within the lumen of the push tube and the lumen of the stent.5. The stent delivery system of claim 1 , wherein the stent is coupled to the push tube when the elongate tubular member is passed through the loop of the member within the inner circumference of the lumen of the stent.6. The stent delivery system of claim 1 , wherein the stent is uncoupled from the push tube in an unloaded condition when the elongate tubular member is withdrawn from the loop of the member and from within the inner circumference of the lumen of the stent.7. The stent delivery system of claim 1 , wherein the elongate tubular member includes a lumen formed therein.8. The stent delivery ...

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Номер записи: 56
10-03-2022 дата публикации

Cardiac Valve Delivery Devices And Systems

Номер: US20220071765A1
Автор: Crisostomo Crissly, Gregg Peter, GROGAN Aaron, Haynes Evelyn, Pfeifle Max, WALLACE Dan
Принадлежит: Cephea Valve Technologies, Inc.

A delivery device includes a handle, a central elongate member extending from the handle, a sheath configured to slide over and relative to the central elongate member, a distal tether retainer at a distal end of the central elongate member, a proximal tether restraining mechanism positioned along the central elongate member distal of the handle and proximal of the distal tether retainer, and a plurality of tethers. The tethers are configured to extend from the proximal tether restraining mechanism to the distal tether retainer. 1. (canceled)2. A delivery device , comprising:a handle;a central elongate member extending from the handle;a first sheath configured to slide over and relative to the central elongate member; anda second sheath positioned over the first sheath, the second sheath having a first configuration and a second configuration,wherein the second sheath in the first configuration is axially fixed relative to the central elongate member and axially movable relative to the first sheath, and the second sheath in the second configuration is axially fixed relative to the first sheath and axially movable with the first sheath relative to the central elongate member.3. The delivery device of claim 2 , wherein the second sheath includes a marker configured to align with a center of a mitral valve.4. The delivery device of claim 3 , wherein the marker is an annular ring that extends radially outwards relative to a remainder of the second sheath.5. The delivery device of claim 2 , wherein the handle includes a control configured to control movement of the first sheath.6. The delivery device of claim 5 , wherein the control is a knob.7. The delivery device of claim 2 , further comprising a tether retainer at a distal end of the central elongate member and a plurality of tethers extending axially to the tether retainer.8. The delivery device of claim 7 , wherein the first and second sheath are configured to move proximally to expose the tether retainer only upon ...

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Номер записи: 57
02-03-2017 дата публикации

STENT DELIVERY SYSTEM

Номер: US20170056221A1
Автор: Anenden Melissa, Campbell Tríona, McElligott Colm, Treacy Gerard
Принадлежит:

A stent delivery system is provided with an inner elongate shaft having a proximal portion and a distal portion and an outer elongate shaft having a lumen extending at least partially therethrough, wherein the proximal portion of the inner elongate shaft is at least partially movably disposed within the lumen. The system also includes a stent positionable about the inner elongate shaft having collapsed and expanded configurations. The system includes a proximal restraining member removably engaged with the outer elongate shaft and attached the stent, and a distal restraining member removably engaged with the inner elongate shaft and attached to the stent. The system also has a proximal biasing member operatively engaged with a distal portion of the outer elongate shaft, a distal biasing member operatively engaged with the distal portion of the inner elongate shaft, and an outer tube with a lumen movably disposed over the inner elongate shaft. 1. A stent delivery system , comprising:an inner elongate shaft comprising a proximal portion and a distal portion;an outer elongate shaft comprising a lumen extending at least partially therethrough, wherein the proximal portion of the inner elongate shaft is at least partially movably disposed within the lumen;a stent positionable about the inner elongate shaft, the stent having a collapsed configuration and an expanded configuration;at least one proximal restraining member removably engaged with the outer elongate shaft, wherein the at least one proximal restraining member is also attached to the stent;at least one distal restraining member removably engaged with the inner elongate shaft, wherein the at least one distal restraining member is also attached to the stent;a proximal biasing member operatively engaged with at least a distal portion of the outer elongate shaft, the proximal biasing member configured to prevent unintentional disengagement of the proximal restraining member from the outer elongate shaft;a distal ...

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Номер записи: 58
17-03-2022 дата публикации

DEVICE FOR FEEDING AND SETTING AN IMPLANT INTO A BLOOD VESSEL

Номер: US20220079789A1
Автор: Stelzmüller Marie-Elisabeth, Wisser Wilfried
Принадлежит:

A device for feeding and setting an implant into a blood vessel includes a hollow cylindrical portion formed of an expandable wire mesh netting with a first end and a second end, with a sleeve for receiving the implant in a radially compressed state. The sleeve is arrangeable along a guide wire. The sleeve for receiving the implant in the radially compressed state is formed by an inner sleeve, around which at least one outer sleeve with a distal end and a proximal end is arranged. The implant is arranged in the inner sleeve in such a way that the second end of the hollow cylindrical portion is arranged on the end facing the proximal end of the outer sleeve, so that during setting of the implant, the inner sleeve surrounding the implant can be moved into the outer sleeve in the distal direction so that the implant expands, beginning from the second end. 1. A device for feeding and setting into a blood vessel (B) an implant with a hollow cylindrical portion formed of an expandable wire mesh netting with a first end and a second end , with a sleeve for receiving the implant in a radially compressed state , which sleeve is arrangeable along a guide wire , characterised in that the sleeve for receiving the implant in the radially compressed state is formed by an inner sleeve , around which at least one outer sleeve with a distal end and a proximal end is arranged , wherein the implant is arranged in the inner sleeve in such a way that the second end of the hollow cylindrical portion is arranged on the end facing the proximal end of the outer sleeve , so that during setting of the implant , the inner sleeve surrounding the implant can be moved into the outer sleeve in the distal direction so that the implant expands , beginning from the second end.2. The device according to characterised in that the distal end of the outer sleeve is rounded in design.3. The device according to claim 1 , wherein openings are arranged at the distal end of the outer sleeve.4. The device ...

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Номер записи: 59
09-03-2017 дата публикации

MEDICAL DEVICE HANDLE

Номер: US20170065406A1
Автор: Calomeni Michael P., Crisostomo Crissly Valdez, Gamarra Randy S., Ino Takashi H.
Принадлежит: Boston Scientific Scimed Inc.

A medical device handle for percutaneous delivery of a medical device implant may include an elongated handle housing having a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end; a rotatable collar disposed about the proximal end of the handle housing; and a rotatable control knob disposed about a proximal portion of the rotatable collar. The rotatable collar may include a first internally-facing longitudinal slot extending less than a full length of the rotatable collar and terminating proximally at a distally-facing wall of an internally-facing circumferentially-oriented slot. The rotatable control knob may be configured to actuate the medical device implant between a delivery configuration, a deployed configuration, and a released configuration. 1. A medical device handle for percutaneous delivery of a medical device implant , comprising:an elongated handle housing having a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;a rotatable collar disposed about the proximal end of the elongated handle housing; anda rotatable control knob disposed about a proximal portion of the rotatable collar;wherein the rotatable collar includes a first internally-facing longitudinal slot extending less than a full length of the rotatable collar and terminating proximally at a distally-facing wall of an internally-facing circumferentially-oriented slot;wherein the rotatable control knob is configured to actuate the medical device implant between a delivery configuration, a deployed configuration, and a released configuration.2. The medical device handle of claim 1 , wherein the medical device implant is reversibly actuatable between the delivery configuration and the deployed configuration.3. The medical device handle of claim 1 , wherein the internally-facing circumferentially-oriented slot operatively connects the first internally-facing longitudinal slot with a second ...

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Номер записи: 60
12-03-2015 дата публикации

STENT DELIVERY SYSTEM

Номер: US20150073525A1
Автор: AOBA Daisuke, Watanabe Hiroyoshi
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP.

A stent delivery system for delivering a stent, the stent delivery system having a push catheter, a guide member, and an elongated stent securing material having a first portion arranged to a push catheter outer surface, a second portion, a third portion, and a fourth portion arranged to the push catheter outer surface, in that order. The first portion and the fourth portion are arranged to the push catheter outer surface such that only one of the first portion and the fourth portion is present on a cross-section plane orthogonal to the longitudinal axis. The stent delivery system is configured to have a secured configuration in which the guide member is arranged within a push catheter lumen and a stent lumen and through a loop formed by a section between the second portion and the third portion to secure the stent. 2. The stent delivery system according to claim 1 ,wherein the first section extends from the first portion through the first through hole of the push catheter into the push catheter lumen and further extends out through the distal opening of the push catheter lumen,wherein the third section extends from the fourth portion through the second through hole of the push catheter into the push catheter lumen and further extends out through the distal opening of the push catheter lumen, the first section extends from the distal opening of the push catheter lumen to be arranged on the stent outer surface, and the third section extends from the distal opening of the push catheter lumen to be arranged on the stent outer surface, and', 'the guide member is arranged within the push catheter lumen and the stent lumen and through the loop to secure the stent by limiting relative movement of the proximal end face of the stent and the distal end face of the push catheter, and, 'wherein in the secured configurationwherein the stent delivery system is configured to have a released configuration in which the guide member is retracted through the loop to release the stent ...

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Номер записи: 61
12-03-2015 дата публикации

STENT LOADING AND DELIVERY DEVICE HAVING A LOADING BASKET LOCK MECHANISM

Номер: US20150073528A1
Автор: BEAN Jeffrey V., HOLLETT Andrew Kendall, Schneider Eric M.
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A stent loading and delivery system, the delivery system comprising an inner elongate tubular member having a proximal end and a distal end, an intermediate elongate tubular member having a proximal end and a distal end in sliding relationship to said inner elongate tubular member and an external elongate tubular member having a proximal end and a distal end in sliding relationship to said intermediate elongate tubular member, said intermediate elongate tubular member comprising a stop mechanism at its proximal end, wherein the stop mechanism prevents the external elongate tubular member from being slid past the stop mechanism when the external elongate tubular member is slid in a proximal direction. 1. A stent loading and delivery system , the delivery system comprising:an inner elongate tubular member having a proximal end and a distal end, an intermediate elongate tubular member having a proximal end and a distal end in sliding relationship to said inner elongate tubular member and an external elongate tubular member having a proximal end and a distal end in sliding relationship to said intermediate elongate tubular member, said intermediate elongate tubular member comprising a stop mechanism at its proximal end and disposed about the circumference of the intermediate elongate tubular member, the stop mechanism having an unexpanded state and an expanded state, the stop mechanism in the expanded state prevents the external elongate tubular member permanently from moving in a proximal direction to a point beyond the stop mechanism.2. The stent loading and delivery device of wherein the stop mechanism in the expanded state takes on a frustoconical shape.3. The stent loading and delivery device of wherein the stop mechanism comprises flanges claim 1 , tabs claim 1 , or pleats.4. The stent loading and delivery device of wherein the inner elongate tubular member comprises a proximal handle at the proximal end claim 1 , the intermediate elongate tubular member comprises ...

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Номер записи: 62
15-03-2018 дата публикации

SYSTEM FOR DEPLOYING AN ENDOLUMINAL PROSTHESIS AT A SURGICAL SITE

Номер: US20180071123A1
Автор: Arbefeuille Samuel, Canning John C., Christian Fletcher, JR. Joseph A., Manguno
Принадлежит:

A system for implanting a prosthesis includes a control lumen and a nose cone affixed at a distal end of the control lumen. At least one supporting wire is affixed at one end, is substantially parallel to a major axis of the control lumen and is free at an opposite end, wherein the free end of at least one of the supporting wires is arcuate. 1. A system for implanting a prosthesis , comprising:a) a control lumen, the control lumen having a superior side, an inferior side and a distal end;b) a nose cone fixed at the distal end of the control lumen;c) an inner sheath that is flexible relative to the control lumen and extending about the control lumen, the inner sheath having a superior portion, an inferior portion, a proximal end, and a distal end, the distal end of the inner sheath being flared, the flared distal end of the inner sheath having a diameter that is wider than that of the proximal end of the inner sheath; andd) at least one supporting wire having a fixed proximal end extending distally along the inferior side of the control lumen and splaying away from the control lumen, and a free distal end opposite the fixed proximal end, wherein the free distal end arcs toward the control lumen.2. The system of claim 1 , wherein the control lumen is arcuate.3. The system of claim 1 , wherein the nose cone defines a cavity within which the distal end of the inner sheath can fit claim 1 , and which will release the distal end of the inner sheath upon retraction of the distal end of the inner sheath from the cavity of the nose cone claim 1 , the nose cone being retractable within the inner sheath after release of the distal end of the inner sheath from the cavity.4. The system of claim 1 , wherein the at least one supporting wire includes at least one stop proximate to the free distal end of the at least one supporting wire claim 1 , the stop having a diameter greater than that of the at least one supporting wire.5. The system of claim 1 , further including an outer ...

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Номер записи: 63
15-03-2018 дата публикации

EXTERNAL STEERABLE FIBER FOR USE IN ENDOLUMINAL DEPLOYMENT OF EXPANDABLE DEVICES

Номер: US20180071126A1
Автор: Beard Matthew S., Sector Martin J., Sondreaal Matthew G.
Принадлежит:

The present disclosure describes treatment of the vasculature of a patient with an expandable implant. The implant is constrained to a reduced delivery diameter for delivery within the vasculature by at least one sleeve. The implant can be constrained to other diameters, such as an intermediate diameter. The sleeves can be expanded, allowing for expansion of the diameter of the expandable implant, by disengaging a coupling member from the sleeve or sleeves from outside of the body of the patient. The expandable implant can comprise a steering line or lines which facilitate bending and steering of the expandable implant through the vasculature of a patient. 1. A delivery system comprising:a catheter shaft;an expandable device arranged on the catheter shaft; releasably constrain the expandable device in a collapsed configuration, and', 'allow outward expansion of the expandable device from the collapsed configuration toward an intermediate configuration in response to axial displacement of the axially displaceable sheath;, 'an axially displaceable sheath extending around the expandable device and configured to'}a constraining mechanism disposed around at least a portion of the expandable device and configured to constrain the expandable device in the intermediate configuration and release the expandable medical device to a deployed configuration; anda steering wire configured to bend at least a portion of the expandable device in response to selective displacement of the steering wire relative to the catheter.2. The delivery system of claim 1 , wherein the steering wire is configured to bi-directionally control movement of the expandable device in response to selective displacement by a clinician.3. The delivery system of claim 2 , wherein the steering wire is configured to be pulled and pushed to bend and unbend the expandable device.4. The delivery system of claim 1 , wherein the steering wire comprises a metallic material.5. The delivery system of claim 1 , wherein ...

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Номер записи: 64
07-03-2019 дата публикации

MEDICAL DEVICE WITH TIP MEMBER

Номер: US20190070001A1
Автор: Calomeni Michael P., Fitterer Mimi Trinh
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

Medical devices and methods for making and using medical devices are disclosed. An example system medical device delivery system includes an outer shaft having a proximal end region, a distal end region and a lumen extending therein. The delivery system also includes an inner shaft having a proximal end region, a distal end region and a lumen extending therein, wherein the inner shaft extends within at least a portion of the lumen of the outer shaft. The delivery system also includes a tip member disposed the along the distal end region of the outer shaft, the tip member including a proximal end region and a distal end region; wherein the outer shaft and the inner shaft are configured to position an implantable medical device therebetween and wherein the tip member includes an annular groove positioned adjacent the proximal end region of the tip member. 1. A medical device delivery system , comprising:an outer shaft having a proximal end region, a distal end region and a lumen extending therein;an inner shaft having a proximal end region, a distal end region and a lumen extending therein, wherein the inner shaft extends within at least a portion of the lumen of the outer shaft; anda tip member disposed the along the distal end region of the outer shaft, the tip member including a proximal end region and a distal end region;wherein the lumen of the outer shaft is configured to position an implantable medical device therein;wherein the tip member includes an annular groove positioned adjacent the proximal end region of the tip member.2. The delivery system of claim 1 , wherein at least a portion of the distal end region of the outer shaft is designed to engage the annular groove.3. The delivery system of claim 1 , wherein the annular groove is proximally facing.4. The delivery system of claim 1 , wherein the annular groove has a first profile and wherein the distal end region of the outer shaft has a second profile claim 1 , and wherein the first profile is configured ...

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Номер записи: 65
07-03-2019 дата публикации

MEDICAL DEVICE DELIVERY SYSTEM WITH FLEXIBLE COUPLER

Номер: US20190070002A1
Автор: Calomeni Michael P., Fitterer Mimi Trinh, Ino Takashi H., Mahaffey Ian M., Sapozhnikov Katherine
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A medical device delivery system includes an outer shaft having an outer shaft lumen extending therethrough and an inner shaft that is slidingly disposable within the outer shaft lumen. A coupler assembly is secured to a distal end region of the inner shaft and includes an elongate tubular member including a proximal region and a distal region, the proximal region of the elongate tubular member secured to the distal end region of the inner shaft, a plurality of fingers extending distally from the distal region of the elongate tubular member that are adapted to releasably engage an implantable medical device and a plurality of sheathing aids extending distally from the distal region of the elongate tubular member that are adapted to guide the medical device back into the outer shaft lumen. 1. A medical device delivery system , comprising:an outer shaft having an outer shaft lumen extending therethrough;an inner shaft slidingly disposable within the outer shaft lumen, the inner shaft including a distal end region; an elongate tubular member including a proximal region and a distal region, the proximal region of the elongate tubular member secured to the distal end region of the inner shaft;', 'a plurality of fingers extending distally from the distal region of the elongate tubular member, the plurality of fingers adapted to releasably engage an implantable medical device; and', 'a plurality of sheathing aids extending distally from the distal region of the elongate tubular member, the plurality of sheathing aids adapted to guide the medical device back into the outer shaft lumen., 'a coupler secured to the distal end region, the coupler comprising2. The medical device delivery system of claim 1 , wherein the elongate tubular member further comprises one or more windows cut into the proximal region of the elongate tubular member in order to facilitate securement of the elongate tubular member to the distal end region of the inner shaft.3. The medical device delivery ...

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Номер записи: 66
07-03-2019 дата публикации

Scaffold Loading and Delivery Systems

Номер: US20190070029A1
Автор: Anthony Prostrollo, Danielle Peterson, Garrett Prahl, Jonathan Merlo, Lee Core, Marc Helmick, Michele Chouinard, Quyhn Pham, Randall Beyreis, Ross Paulson
Принадлежит: 480 Biomedical Inc, Lyra Therapeutics Inc

This disclosure describes, inter alia, materials, devices, kits and methods that may be used for loading scaffolds into delivery devices and delivery of scaffolds into the body of a patient, including delivery of scaffolds to the sinuses for the treatment of chronic sinusitis, among other purposes.

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Номер записи: 67
07-03-2019 дата публикации

METHOD AND APPARATUS FOR CONTROLLING THE DEPLOYMENT OF A STENT

Номер: US20190070031A1
Автор: McDonald Gary Peter, Stevenson David Granville
Принадлежит: Vascutek Limited

A control system for deploying a stent graft including a resilient ring stent at one end, provides a delivery shaft carrying the stent graft with the ring stent adjacent a proximal end of the shaft for insertion into a lumen; a retractable sleeve for containing the stent graft on the delivery shaft; a control handle adjacent the distal end, of the delivery shaft; and stent peak and valley control wires extending from the proximal end of the delivery shaft to peak and valley controllers at the control handle. Use of the control wires effects movement and/or rotation of the graft allowing fine control of deployment in the lumen. 1. A delivery apparatus for controlling the deployment of a stent , the apparatus comprising:a delivery shaft adapted to carry a tubular prosthesis thereon and having a proximal end for insertion into a lumen and a distal end remote from the proximal end;a retractable sleeve adapted to contain a tubular prosthesis carried on the delivery shaft;a control handle adjacent the distal end of the delivery shaft;at least one stent peak control wire extending from the proximal end of the delivery shaft to the control handle;a peak controller at the control handle adapted to control the position of the stent peak control wire.2. The apparatus of claim 1 , comprising two or more stent peak control wires extending from the proximal end of the delivery shaft to the control handle claim 1 , and wherein the peak controller is adapted to control the position of the two or more stent peak control wires.3. The apparatus of claim 1 , comprising:at least one stent valley control wire extending from the proximal end of the delivery shaft to the control handle; anda valley controller at the control handle adapted to control the position of the stent valley control wire.4. The apparatus of claim 1 , comprising two stent valley control wires extending from the proximal end of the delivery shaft to the control handle claim 1 , and wherein the apparatus includes two ...

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Номер записи: 68
16-03-2017 дата публикации

IMPLANTABLE DEVICE DELIVERY SYSTEM

Номер: US20170071772A1
Автор: Eller Zeke, Elwood Bryan K., Gill Barton, Gill Darla, Robinson Thomas Patrick
Принадлежит:

Delivery systems and methods for deploying an implantable device are disclosed, which can include a delivery device having an outer tubular member and an inner assembly. The inner assembly is disposed within and is slidably movable relative to the outer tubular member. The inner assembly can include a pusher at a distal portion. The pusher abuts and restricts proximal movement, relative to the inner assembly, of a crimped implantable device within the outer tubular member. The pusher can include a slot to accommodate a suture binding mechanism of the implantable device. The delivery device can include a tip disposed at a distal end. The tip includes a tip transition zone. The inner sheath and outer tubular member can each have sections of distinct rigidity along their lengths with transition zones between the sections. A transition zone of the outer tubular member and a transition zone of the inner sheath can be longitudinally offset. 1. A delivery system for deploying a stent within a lumen of a body of a patient , the delivery system comprising:a delivery device to position a stent at a target location within a lumen of a body of a patient, the delivery device transitionable from a delivery configuration to a deployment configuration to deploy the stent at the target location, the delivery device including an outer tubular member that, in the delivery configuration, houses the stent in a crimped state for delivery to the target location and an inner assembly that is disposed within the outer tubular member and that is slidably movable relative to the outer tubular member; and a push surface facing distally to abut a proximal facing surface of the stent in the crimped state and limit proximal movement of the stent relative to the pusher during deployment as the delivery device transitions from the delivery configuration to the deployed configuration; and', 'a slot to receive and house one or more of (i) ends of a suture coupled to the stent, (ii) a knot in the ...

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Номер записи: 69
05-03-2020 дата публикации

DELIVERY SYSTEM HAVING RETRACTABLE WIRES AS A COUPLING MECHANISM AND A DEPLOYMENT MECHANISM FOR A SELF-EXPANDING PROSTHESIS

Номер: US20200069425A1
Автор: Keogh James R., Rothstein Paul
Принадлежит:

A delivery system for transcatheter implantation of a heart valve prosthesis. The delivery system includes an outer sheath component defining a lumen therethrough, an elongate tube having at least two flat wires longitudinally extending from a distal end thereof, and self-expanding first and second frames disposed in series within a distal portion of the outer sheath component and held in a compressed delivery configuration therein. The elongate tube and the at least two flat wires are slidably disposed within the lumen of the outer sheath component. In the compressed delivery configuration the at least two flat wires longitudinally extend along exterior portions of the first and second frames and are woven through adjacent ends of the first and second frames to releasably couple them to each other. Proximal retraction of the at least two flat wires from the first and second frames releases at least the first frame from the delivery system. 113-. (canceled)14. A method of implanting a valve prosthesis within a native valve , the method comprising the steps of:percutaneously advancing a delivery system to the native valve, wherein the delivery system includes an outer sheath component defining a lumen therethrough, an elongate tube defining a lumen and having at least two wires longitudinally extending from a distal end thereof, and the elongate tube and the at least two wires being slidably disposed within the lumen of the outer sheath component, and wherein the delivery system further includes a valve prosthesis having a self-expanding valve frame with a prosthetic valve component secured therein and a self-expanding docking frame, the docking frame being disposed distal of the valve prosthesis and each frame being held in a compressed delivery configuration within a distal portion of the outer sheath component, and wherein the at least two wires longitudinally extend along exterior portions of the valve frame and the docking frame and are woven through adjacent ...

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Номер записи: 70
22-03-2018 дата публикации

Multi-level suture attachments for coupling a stent to graft material

Номер: US20180078358A1
Автор: Michael P. DeBruyne, Siddharth Vad
Принадлежит: Cook Medical Technologies LLC

The present embodiments provide stent-grafts. In one embodiment, a stent has proximal and distal ends, a plurality of strut segments disposed between the proximal and distal ends that enable expansion of the stent from a compressed state to a deployed state, and a series of distal apices disposed at the distal end of the stent. At least a portion of a first distal apex overlaps with graft material. First and second sutures are each coupled between a portion of the first distal apex and the graft material. The first and second sutures are positioned at different longitudinal zones that lack an axial overlap with one another.

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Номер записи: 71
22-03-2018 дата публикации

Apical control of transvascular delivery of prosthetic mitral valve

Номер: US20180078370A1
Автор: Igor Kovalsky, Robert M. Vidlund, Zach VIDLUND, Zachary J. Tegels
Принадлежит: Tendyne Holdings Inc

Apparatus and methods are described herein for use in the delivery and deployment of a prosthetic mitral valve. In some embodiments, after a prosthetic valve has been at least partially delivered from a delivery sheath into the left atrium of a heart, a valve positioning device can be used to engage with and position the prosthetic valve within the mitral annulus. The valve positioning device can include an alignment member configured to engage with a prosthetic valve such that the alignment member can control the distal, proximal, lateral and/or rotational movement of the prosthetic valve. The prosthetic valve can include a tether that can be inserted or threaded through the alignment member such that the alignment member can be moved along the tether into engagement with the prosthetic valve.

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Номер записи: 72
24-03-2016 дата публикации

POLYMERIC IMPLANT DELIVERY SYSTEM

Номер: US20160081830A1
Автор: Brightbill Jerry, Busold Rany, Core Lee, Douk Nareak, Ho Kicherl, Kostanski Sarah, Le My, Robinson Timothy Walter, Shia Benedict
Принадлежит:

Delivery systems for a polymeric tubular implant, kits that include such delivery systems, and methods of treating patients by implanting tubular implants using the delivery systems. The delivery systems include an inner shaft, an expandable member slidably disposed about the inner shaft and configured to receive the tubular implant, and a tubular outer shaft disposed about the inner shaft. 1. A method of treating a patient , comprising:providing a tubular implant and a delivery catheter adapted to engage with the tubular implant;engaging the tubular implant with the delivery catheter;inserting at least a portion of the delivery catheter into a body of the patient; anddisengaging the tubular implant and the delivery catheter, thereby implanting the tubular implant within the body of the patient,wherein the implant is disengaged after fewer than 24 hours have elapsed from the engagement of the tubular implant with the catheter.2. The method of claim 1 , wherein(a) the tubular implant is moveable between an unstressed configuration characterized by a first diameter and a compressed configuration characterized by a second diameter less than the first diameter,(b) engaging the tubular implant with the delivery device includes moving the tubular implant from the unstressed configuration to the compressed configuration; and(c) disengaging the tubular implant and the delivery catheter includes moving the tubular implant from the compressed configuration to the unstressed configuration.3. The method of claim 2 , wherein an inner shaft comprising a distal end configured for insertion into a patient and a proximal end configured to remain outside of the patient when the distal end is inserted into the patient, at least a portion of said inner shaft having a diameter less than the first diameter; and', 'a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a cross-sectional dimension greater or ...

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Номер записи: 73
31-03-2022 дата публикации

LATCH WIRE AND DRIVER SHAFT

Номер: US20220096258A1
Автор: Anderson James M.
Принадлежит:

Improvements to devices and systems for delivering and/or deploying an implantable device. The device includes at least one latch extending from a flexible elongate member to engage with the implantable device, such as during delivery and/or deployment. The flexible elongate member includes a locking region on the exterior thereof and shaped and configured to be distinct from surrounding areas. The locking region may be engaged with one or more of the latch, a component (e.g., a control knob) of a control handle of the system, or a driver shaft/actuator extending along (e.g., over) the flexible elongate member to drive or actuate a component of the implantable device, such as to move, implant, adjust, etc. the implantable device. 1. A delivery and deployment system for delivering and/or deploying an implantable device , the system comprising:a control handle configured to manipulate components of the delivery and deployment device;a flexible elongate member having a proximal end coupled to the control handle and a distal end extending distally therefrom; anda latch coupled to the distal end of the flexible elongate member;wherein:the flexible elongate member comprises a first locking region, formed on an exterior thereof, shaped and configured to engage with one of the control handle or the latch to inhibit relative movement therebetween; andthe one of the control handle or the latch comprises a channel for receiving an end of the flexible elongate member with a channel locking region corresponding to the first locking region for engagement therewith to inhibit relative movement between the flexible elongate member and the one of the control handle and the latch.2. The system of claim 1 , wherein the first locking region has a shape and/or configuration distinct from the contour of the flexible elongate member surrounding the first locking region.3. The system of claim 2 , wherein the first locking region is at least one of a flat claim 2 , a swaged region claim 2 , ...

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Номер записи: 74
25-03-2021 дата публикации

MEDICAL DEVICE RELEASE SYSTEM

Номер: US20210085498A1
Автор: NYGAARD ERIC, Tassoni Nicholas Lee
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A medical device system may include an elongate shaft having a lumen extending from a proximal end to a distal end, a proximal release wire, and a distal release wire. The proximal release wire may extend distally from a proximal end configured to remain outside the body to a distal end and may be slidably disposed within the lumen of the elongate shaft. The distal release wire may extend distally from a proximal end to a distal end and may be slidably disposed within the lumen of the elongate shaft. The proximal end of the distal release wire may be slidably coupled to the distal end of the proximal release wire. The distal release wire may be configured to releasably attach a medical device to the distal end of the elongate shaft. 1. A medical device system , comprising:an elongate shaft having a lumen extending from a proximal end of the elongate shaft to a distal end of the elongate shaft;a proximal release wire extending distally from a proximal end configured to remain outside a body to a distal end and slidably disposed within the lumen of the elongate shaft; anda distal release wire extending distally from a proximal end to a distal end and slidably disposed within the lumen of the elongate shaft, the proximal end of the distal release wire slidably coupled to the distal end of the proximal release wire, wherein the distal release wire is configured to releasably attach a medical device to the distal end of the elongate shaft.2. The medical device system of claim 1 , wherein the distal end of the proximal release wire forms a proximal loop.3. The medical device system of claim 2 , wherein the proximal end of the distal release wire forms a distal loop.4. The medical device system of claim 3 , wherein the proximal loop and the distal loop are slidably coupled.5. The medical device system of claim 3 , wherein an inner surface of a distal end of the proximal loop is configured to engage an inner surface of a proximal end of the distal loop upon proximal ...

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Номер записи: 75
29-03-2018 дата публикации

PLIANT MEMBERS FOR RECEIVING AND AIDING IN THE DEPLOYMENT OF VASCULAR PROSTHESES

Номер: US20180085240A1
Автор: Adams Michael, Cindrich Christopher, Eller Zeke, Hall John, Mower Wayne
Принадлежит:

A vascular prosthesis deployment device and related methods are disclosed. In some embodiments the deployment device may include a delivery catheter assembly. The delivery catheter assembly may include a pliant member, wherein the pliant member is configured receive a vascular prosthesis. The pliant member may also be configured to aid in incrementally deploying a vascular prosthesis. 1. A prosthesis delivery catheter assembly , comprising:an outer sheath;an inner sheath disposed within the outer sheath; anda pliant member surrounding a portion of an exterior surface of the inner sheath, the pliant member configured to engage a constrained prosthesis.2. The prosthesis delivery catheter assembly of claim 1 , wherein a durometer of the pliant member is about 10 to about 60 on the Shore A scale.3. The prosthesis delivery catheter assembly of claim 1 , wherein the pliant member comprises at least one of silicone claim 1 , polyether block amide claim 1 , or thermoplastic elastomer.4. The prosthesis delivery catheter assembly of claim 1 , wherein a wall thickness of the pliant member is about 0.0005 inch to about 0.05 inch.5. The prosthesis delivery catheter assembly of claim 1 , wherein the pliant member is disposed around a circumference of the inner sheath.6. The prosthesis delivery catheter assembly of claim 1 , wherein a length of the pliant member is equal to or greater than a length of the constrained prosthesis.7. The prosthesis delivery catheter assembly of claim 1 , wherein a length of the pliant member is equal to or less than a length of the constrained prosthesis.8. The prosthesis delivery catheter assembly of claim 1 , wherein the pliant member is longitudinally continuous along the length of the constrained prosthesis.9. The prosthesis delivery catheter assembly of claim 1 , wherein the pliant member is circumferentially continuous along an inside surface of the constrained prosthesis.10. The prosthesis delivery catheter assembly of claim 1 , further ...

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Номер записи: 76
01-04-2021 дата публикации

STENTED PROSTHESIS DELIVERY SYSTEM HAVING A BUMPER

Номер: US20210093451A1
Автор: Barajas-Torres Martha, Brown Nathan, GLOSS Michael, Groen Timothy, Lally Marian, Mendelson Jill, Mendoza Leonel, Silver Michele, Som Siyan, Tran Don
Принадлежит: Medtronic Vascular, Inc.

Numerous delivery devices for delivery of a stented prosthesis, such as a stented prosthetic heart valve. Various delivery devices include a capsule that is advanced proximally to retain the stented prosthesis, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper or bumper assembly to provide a smooth transition of the capsule over the stented prosthesis. In some alternate disclosed embodiments, the bumper further serves to connect various elements of the inner shaft assembly. Additional embodiments include a bumper assembly arranged and configured to longitudinally expand and contract to substantially fill any open space as the capsule is retracted from the stented prosthesis, which prevents kinking in the capsule. Additional embodiments include proximal and/or distal bumpers for temporarily covering and smoothing the ends of the stented prosthesis as part of a delivery device that does not include a capsule. 1. A method of delivering a stented prosthesis to a target site , the method comprising: an inner shaft assembly having a distal portion retaining the stented prosthesis,', 'a distal bumper engaged with and covering the distal end of the stented prosthesis,, 'providing an expandable stented prosthesis loaded onto a delivery device in a collapsed, loaded state, the stented prosthesis having a distal end and a proximal end; the delivery device includingpercutaneously delivering the stented prosthesis in the collapsed, loaded state to the target site with the distal bumper and a portion of the stented prosthesis between the distal bumper and the proximal end being unsheathed; andonce the loaded stented prosthesis is at the target site, transitioning the stented prosthesis from the collapsed, loaded state to an expanded arrangement.2. The method of claim 1 , wherein the stented prosthesis is a prosthetic heart valve and the target site is a heart valve.3. The method of claim 2 , wherein the stented ...

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Номер записи: 77
28-03-2019 дата публикации

Articulating Retainer For Transcatheter Heart Valve Delivery Systems

Номер: US20190091021A1
Автор: Cronin Sadie J., Morrissey Michael Shane
Принадлежит: St. Jude Medical, Cardiology Division, Inc.

A delivery device for a collapsible prosthetic heart valve includes a shaft having a longitudinal axis, at least a portion of the shaft being tubular with a wall thickness, a proximal end, and a distal end; and a retainer affixed to the shaft distally of the portion of the shaft, the retainer having at least one retainer pocket adapted to receive at least one retainer tab of the valve. The portion of the shaft includes an articulating pattern formed through the wall thickness, the portion of the shaft from the proximal end to the distal end being positioned along the longitudinal axis when the articulating pattern is in a relaxed condition, and at least a part of the portion of the shaft being oriented at an angle transverse to the longitudinal axis when the articulating pattern is in a flexed condition. 1. A device for delivering into a patient a collapsible prosthetic heart valve , the device comprising:a shaft having a longitudinal axis, at least a portion of the shaft being tubular with a wall thickness, the portion of the shaft extending in a longitudinal direction between a proximal end and a distal end; anda compartment positioned on the shaft distally of the portion of the shaft and adapted to receive the prosthetic heart valve in assembled relationship,wherein the portion of the shaft includes an articulating pattern formed through the wall thickness, the portion of the shaft from the proximal end to the distal end being positioned along the longitudinal axis when the articulating pattern is in a relaxed condition, and at least a part of the portion of the shaft being oriented at an angle transverse to the longitudinal axis when the articulating pattern is in a flexed condition.2. The device of claim 1 , wherein the portion of the shaft is assembled to a remainder of the shaft.3. The device of claim 1 , wherein the prosthetic heart valve has at least one retainer tab claim 1 , the device further comprising a retainer affixed to the shaft distally of the ...

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Номер записи: 78
28-03-2019 дата публикации

CIRCUMFERENTIAL TRIGGER WIRE FOR DEPLOYING AN ENDOLUMINAL PROSTHESIS

Номер: US20190091051A1
Автор: Roeder Blayne A.
Принадлежит: Cook Medical Technologies LLC

A deployment device for deploying an expandable endoluminal prosthesis within a body vessel may include an elongate member extending longitudinally along at least a portion of a length of the deployment device. The deployment device may include at least one engagement member coupled to the elongate member and extending outwardly from the elongate member. The deployment device may include a circumferential trigger wire extending at least partially circumferentially around the elongate member and removably received between the engagement member and the elongate member. The circumferential trigger wire may be manipulatable from a distal end of the deployment device, whereby the circumferential trigger wire is removable from between the engagement member and the elongate member. 1. An expandable endoluminal prosthesis and deployment device for deploying the expandable endoluminal prosthesis within a body vessel , the deployment device comprising:a proximal end and a distal end;an elongate member extending longitudinally along at least a portion of a length of the deployment device from the distal end to the proximal end and having an inner lumen;an expandable endoluminal prosthesis disposed about the elongate member, the expandable endoluminal prosthesis comprising a tube of graft material and at least one self-expanding stent, the self-expanding stent having an outer circumference;at least one axial trigger wire disposed in the lumen of the elongate member from the distal end of the deployment device, the at least one trigger wire extending outwardly from the lumen of the elongate member through an axial trigger wire aperture in the elongate member to form an axial loop external to the elongate member and through the stent; anda circumferential trigger wire extending out of a first circumferential trigger wire aperture in the elongate member at an exit point on the elongate member, forming a single loop circumferentially around substantially the entire outer ...

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Номер записи: 79
28-03-2019 дата публикации

STENT INSERTION DEVICE FOR CONNECTING HUMAN DIGESTIVE ORGANS

Номер: US20190091052A1
Автор: MYUNG Byung Cheol
Принадлежит:

A stent insertion device for connecting human digestive organs includes a first handle being connected to one side of an outer tube, the first handle including a first inner passage communicating with the outer tube, a second handle being connected to a first side of an inner tube, the second handle including a second inner passage communicating with the inner tube, wherein a mounting space is provided between the outer tube and the inner tube at a second side of the inner tube, a stent for connecting human digestive organs being compressed and mounted to the mounting space, a third handle being connected to a first side of an insulation tube, the third handle including a third inner passage communicating with the insulation tube, and a needle knife being connected to a second side of the insulation tube. 1. A stent insertion device for connecting human digestive organs , the stent insertion device comprising:a first handle being connected to one side of an outer tube, the first handle including a first inner passage communicating with the outer tube;second handle being connected to a first side of an inner tube moveably inserted into the outer tube and the first inner passage, the second handle including a second inner passage communicating with the inner tube,wherein a mounting space is provided between the outer tube and the inner tube at a second side of the inner tube, a stent for connecting human digestive organs being compressed and mounted to the mounting space;a third handle being connected to a first side of an insulation tube moveably inserted into the inner tube and the second inner passage, the third handle including a third inner passage communicating with the insulation tube; anda needle knife being connected to a second side of the insulation tube, the needle knife including a fourth inner passage communicating with the insulation tube and protruding from the outer and inner tubes during hole forming operations on a stomach and a biliary duct.2. The ...

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Номер записи: 80
08-04-2021 дата публикации

STENT AND SLEEVE DEPLOYMENT

Номер: US20210100647A1
Автор: CORCORAN KATHLEEN, Folan Martyn G., FORDE BRYAN, HYNES MARTIN, KEATING THOMAS MARTIN, NOLAN DAMIEN VINCENT, REAVIS KEVIN M.
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A delivery system for delivering an implant having both a rigid portion and a flexible portion to a body lumen. The delivery system includes an outer tubular member and an inner tubular member slidably disposed within the lumen of the outer tubular member. The inner tubular member includes at least one opening positioned in a side wall adjacent to a distal end region. An expandable implant, including a rigid portion and a flexible portion, is disposed about the outer surface of the inner tubular member. A distal portion of a thread is wrapped around the flexible portion of the implant and configured to maintain the flexible portion in a radially collapsed configuration during delivery of the implant. A distal end region of the outer tubular member is disposed around the rigid portion of the implant to maintain the rigid portion in a radially collapsed configuration during delivery of the implant. 1. A delivery system for delivering an implant to a body lumen , the system comprising:an outer tubular member defining a lumen;an inner tubular member defining a lumen and being slidably disposed within the lumen of the outer tubular member;an expandable implant disposed about an outer surface of the inner tubular member adjacent a distal end region of the inner tubular member, the implant comprising at least a first rigid portion and a first flexible portion; anda thread including a distal portion wrapped around an outer surface the first flexible portion of the implant thereby maintaining an entirety of the first flexible portion in a radially collapsed configuration;wherein a distal end region of the outer tubular member is disposed over the first rigid portion of the implant and is configured to maintain the first rigid portion in a radially collapsed configuration.2. The delivery system of claim 1 , wherein the thread maintains the first flexible portion of the implant in the radially collapsed configuration when the outer tubular member is not disposed over the first ...

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Номер записи: 81
08-04-2021 дата публикации

Implantable Biocompatible Expander Suitable For Treatment Of Constrictions Of Body Lumen

Номер: US20210100666A1
Автор: Harkin Conor, Murphy Bruce, Redmond James, Ryan Garrett
Принадлежит:

An implantable biocompatible expander suitable for implantation into a urinary duct, comprises an elongated sinusoidal ring comprising at least two proximal prongs and at least two distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander is configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter. 1. An implantable biocompatible expander suitable for treatment of benign prostatic hyperplasia (BPH), the expander comprising a single elongated undulating ring having three proximal prongs and three distal prongs, or five proximal prongs and five distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urethra, wherein the expander is configured to span a substantial section of the prostatic urethra between the bladder neck and external sphincter and cause in-situ expansion of the substantial section of the prostatic urethra. This application is a Continuation of U.S. application Ser. No. 15/775,257, filed on Nov. 14, 2016, which is the U.S. National Stage of International Application No. PCT/EP2016/077606, filed on Nov. 14, 2016, which designates the U.S., published in English, claims priority to EP Application No. 15194391.7, filed on Nov. 12, 2015, and claims the benefit of U.S. Provisional Application No. 62/321,639, filed on Apr. 12, 2016. The entire teachings of the above applications are incorporated herein by reference.Benign prostatic hyperplasia (BPH) involves ...

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Номер записи: 82
08-04-2021 дата публикации

Method for deploying an endoluminal prosthesis at a surgical site

Номер: US20210100669A1
Автор: Fletcher Christian, John C. Canning, Joseph A. Manguno, JR., Samuel Arbefeuille
Принадлежит: Bolton Medical Inc

A system for implanting a prosthesis includes a control lumen and a nose cone affixed at a distal end of the control lumen. At least one supporting wire is affixed at one end, is substantially parallel to a major axis of the control lumen and is free at an opposite end, wherein the free end of at least one of the supporting wires is arcuate. Alternatively, a system for implanting a prosthesis includes at least one suture extending from a nose cone affixed to a distal end of a control lumen. The suture extends from the nose cone to a proximal end to a stent graft extending about the control lumen and from the stent graft to a fixed location on the control lumen. The suture is releasable from the stent graft by remote activation, whereby the suture separates from the nose cone to thereby deploy the stent graft.

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Номер записи: 83
13-04-2017 дата публикации

Vascular Prosthetic Delivery Device and Method of Use

Номер: US20170100271A1
Автор: Fletcher Christian, John C. Canning, Samuel Arbefeuille
Принадлежит: Bolton Medical Inc

Methods for delivering a vascular prosthesis to a treatment site of a subject include advancing the vascular prosthesis, rotating a proximal handle in a first direction about a handle body, shifting the position of a first locking component securing the proximal handle to the push rod from a first position to a second position, rotating the proximal handle in a second direction, releasing the proximal end of the prosthesis from the apex delivery device, shifting the second locking component to disengage the push rod from the handle body; and withdrawing the push rod and the guidewire catheter from within the prosthesis, thereby delivering the vascular prosthesis to the treatment site.

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Номер записи: 84
02-06-2022 дата публикации

Expandable sheath

Номер: US20220168125A1
Автор: Boaz Manash, David Maimon, Eran Goldberg, Eyal Leiba, Liron Tayeb, Noa Axelrod Manela, Ralph Schneider, Yair A. Neumann
Принадлежит: Edwards Lifesciences Corp

An expandable sheath is disclosed herein, which has a first polymeric layer and a braided layer positioned radially outward of the first polymeric layer. The braided layer includes a plurality of filaments braided together. The expandable sheaths further include a resilient elastic layer positioned radially outward of the braided layer. The elastic layer is configured to apply radial force to the braided layer and the first polymeric layer. The expandable sheath further includes a second polymeric layer positioned radially outward of the elastic layer and bonded to the first polymeric layer such that the braided layer and the elastic layer are encapsulated between the first and second polymeric layers. Methods of making and using the devices disclosed herein are also disclosed, as are crimping devices that may be used in methods of making the devices disclosed herein.

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Номер записи: 85
21-04-2016 дата публикации

ENDOVASCULAR STENT GRAFT ASSEMBLY AND DELIVERY DEVICE

Номер: US20160106564A1
Автор: Greenberg Roy K., Haulon Stephan, Roeder Blayne A.
Принадлежит:

A pre-loaded delivery device that facilitates accurate placement of a stent graft assembly in the aorta is disclosed. A stent graft is carried on the delivery device and held in a pre-deployment configuration by a sheath. A split in the sheath facilitates the pre-cannulation of one or more branch arteries extending from the aorta before the stent graft is fully released in the aorta. The stent graft comprises a tubular body having at least one scalloped fenestration formed in one end of the graft material and at least one fenestration formed in the graft material of the main tubular body. A helical internal side branch extends from the fenestration within the lumen of the main tubular body. The helical side branch is configured to curve at least partially around the scalloped fenestration. The assembly further comprises a connection stent graft extending from the fenestration into a branch vessel. 1. A system for the delivery and deployment of an endovascular stent graft comprising:a delivery device having a longitudinal axis comprising a pusher catheter having a proximal end and a distal end and defining a lumen extending between the proximal and distal ends and a guide wire catheter extending longitudinally within the lumen of the pusher catheter;a stent graft releasably coupled to the delivery device,a sheath having a proximal end and a distal end, wherein the sheath is disposed over the stent graft thereby retaining the stent graft in a radially contracted configuration on the delivery device, the sheath comprising a split located between the proximal and distal ends of the sheath thus forming a distal sheath segment located distal of the split and a proximal sheath segment located proximal of the split; andan auxiliary catheter having a proximal end and a distal end and defining a guide wire lumen therebetween, wherein the auxiliary catheter extends longitudinally under the distal sheath segment and through the sheath split between the proximal and distal ...

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Номер записи: 86
20-04-2017 дата публикации

Medical device delivery system

Номер: US20170106168A1
Автор: Belinko Matsuura, David Matsuura, Jeffrey Loos, Philip Simpson, Stephen Sosnowski
Принадлежит: COVIDIEN LP

A medical device delivery system can be used to advance a medical device to a target area within a patient's vasculature. The system can comprise a catheter, a support sheath, and a core member coupled to a medical device. The core member can be used to longitudinally advanced or retracting medical device within a lumen of the support sheath. The support sheath can be advanced within the catheter until a distal end of the support sheath contacts or abuts a reduced diameter section of the catheter lumen. Thereafter, the core member can be advanced into the catheter lumen toward the target area.

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Номер записи: 87
11-04-2019 дата публикации

Endovascular grafts and methods for extended aortic repair

Номер: US20190105149A1
Автор: Brandon Gulker, Eric E. Roselli, Justin Metcalf, Kelly B. Emerton
Принадлежит: CLEVELAND CLINIC FOUNDATION

An endovascular graft including a stent graft and a surgical graft is provided. The stent graft can include an elongated body having a collapsed and expanded configuration and include a frame structure covered by a compression sleeve that retains the elongated body in the collapsed configuration until deployment of the stent graft. The endovascular graft can include a first cuff member sized and dimensioned to extend into a lumen of an aortic arch branch vessel when the endovascular graft is implanted in a subject. The frame structure can include a backstop sized and dimensioned to extend into the first cuff member when the endovascular graft is implanted in the subject. The surgical graft can be partially attached to the stent graft at a proximal end portion thereof.

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Номер записи: 88
09-06-2022 дата публикации

Delivery device and methods of use for transapical delivery of replacement valve

Номер: US20220175525A1
Автор: Alexander H. Cooper, David Robert Landon, Garrett Dallas Johnson, Glen T. Rabito, Lindsay Lam
Принадлежит: Edwards Lifesciences CardiAQ LLC

Devices, systems and methods are described for implantation of a prosthesis within a lumen or body cavity and delivery systems for delivering the prosthesis to a location for implantation. A delivery system can include a tether connected to a single directional handle knob for release of the prosthesis within the lumen or body cavity and retraction of the tether towards the handle.

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Номер записи: 89
26-04-2018 дата публикации

ACTIVELY CONTROLLABLE STENT, STENT GRAFT, HEART VALVE AND METHOD OF CONTROLLING SAME

Номер: US20180110618A1
Автор: Bales, Cartledge Richard, Deville Derek Dee, Jr. Thomas O., Kirk Michael Walter, Kline Korey, McBrayer Sean, Mendez Max Pierre, Palmer Matthew A., PETERSEN ERIC, Rivera Carlos, Smith Kevin W.
Принадлежит: Edwards Lifesciences CardiAQ LLC

An assembly includes a prosthetic heart valve and a delivery apparatus. The prosthetic heart valve has a plurality of pivotably connected struts and one or more adjustable elements rotatably coupled to the struts. Rotating the adjustable elements in a first direction relative to the struts radially expands the prosthetic heart valve. Rotating the adjustable elements in a second direction relative to the struts radially contracts the prosthetic heart valve. The delivery apparatus includes one or more motors, one or more drive wires coupled to the motors, and a memory. The drive wires are coupled to the adjustable elements of the prosthetic heart valve. The motors are configured to rotate the drive wires and the adjustable elements to expand and contract the prosthetic heart valve. The memory is configured for storing one or more characteristics of the motors, the drive wires, or the prosthetic heart valve. 1. An assembly , comprising:a prosthetic heart valve having a plurality of pivotably connected struts and one or more adjustable elements rotatably coupled to the struts, wherein rotating the adjustable elements in a first direction relative to the struts radially expands the prosthetic heart valve, and wherein rotating the adjustable elements in a second direction relative to the struts radially contracts the prosthetic heart valve; anda delivery apparatus including one or more motors, one or more drive wires coupled to the motors, and a memory, wherein the drive wires are coupled to the adjustable elements of the prosthetic heart valve, wherein the motors are configured to rotate the drive wires and the adjustable elements to expand and contract the prosthetic heart valve, and wherein the memory is configured for storing one or more characteristics of the motors, the drive wires, or the prosthetic heart valve.2. The assembly of claim 1 , wherein the characteristics stored in the memory of the delivery apparatus include first characteristics corresponding to ...

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Номер записи: 90
26-04-2018 дата публикации

Delivery System And Method For Self-Centering A Proximal End Of A Stent Graft

Номер: US20180110638A1
Автор: Arbefeuille Samuel, Berra Humberto, Borrego Frank, Christian Fletcher, Lostetter Timothy, Moore Michael, Ouellette Gerry
Принадлежит:

A method for implanting a prosthesis centrally within a curved lumen includes loading a prosthesis into a delivery sheath, advancing the sheath in a patient towards the curved lumen to place at least the proximal end of the prosthesis within the curved lumen, and centering the proximal end of the prosthesis and/or the distal end of the sheath within the curved lumen. In a first advancing step, the outer catheter containing the inner sheath is advanced together towards the curved lumen to a location proximal of the curved lumen and, in a second advancing step, the inner sheath containing the prosthesis is advanced into the curved lumen to place at least the proximal end within the curved lumen while the outer catheter substantially remains at the location. After centering, the proximal end of the prosthesis is deployed centered within the curved lumen. 1loading a prosthesis into a delivery sheath, the prosthesis having a roximal end and the sheath having a distal end;advancing the sheath in a patient towards the curved lumen to place at least the proximal end within the curved lumen; andsubstantially aligning an inflow plane, which is defined by the proximal end of the prosthesis to be implanted in a patient, with an implant plane, which is defined by a ring of tissue inside a vessel at which the proximal end of the prosthesis is to be implanted, in a common plane that is transverse to a major longitudinal axis of the vessel.. A method for implanting a prosthesis centrally within a curved lumen, which comprises: This application is a continuation of U.S. patent application Ser. No. 14/575,673, filed Dec. 18, 2014, which is a continuation of U.S. patent application Ser. No. 13/024,882, filed Feb. 10, 2011, now abandoned, which is a continuation of U.S. patent application Ser. No. 11/701,876, filed Feb. 1, 2007, now abandoned, which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 60/851,282, filed Oct. 12, 2006, 60/833,533, filed Jul. 26 ...

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Номер записи: 91
27-04-2017 дата публикации

MEDICAL INSTRUMENT DEPLOYER

Номер: US20170112648A1
Автор: Wiant Ryan
Принадлежит:

The present disclosure provides for a medical instrument deployer having a barrier element such that the barrier element may move between a closed state, where the medical instrument is contained, and an open state, where the medical instrument is deployed within a body. Moving the barrier element between the closed state and the open state may involve rotating the barrier element around the circumference of the deployer. 1. A device for use in a body , the device comprising:an outer sheath having a proximal end, a distal end, and an outer wall extending from the proximal end to the distal end along a longitudinal axis, the outer sheath having a first lumen formed therethrough, the outer wall having an opening; anda barrier element moveably disposed about the opening in a circumferential direction to move the device between an open state and a closed state, the device being in the closed state when the barrier element is disposed at the opening, the device being in the open state when the barrier element is disposed away from the opening.2. The device of further comprising an inner sheath having a first end extending along the longitudinal axis to a second end and a second lumen formed therethrough claim 1 , the inner sheath being slidably received within the first lumen claim 1 , the inner sheath having a second portion between the first and second ends being closer to the second end than the first end.3. The device of further comprising an implant disposed about the second portion and cooperating with the barrier element such that the implant moves through the opening and into the body in the open state.4. The device of further comprising a second handle proximal the proximal end and having a third lumen and a handle track formed therethrough claim 1 , the second handle being coaxial with the outer sheath.5. The device of wherein the barrier element comprises a base and a barrier wall extending distally from the base along the longitudinal axis.6. The device of ...

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Номер записи: 92
09-04-2020 дата публикации

MEDICAL IMPLANT DELIVERY SYSTEM AND METHOD OF USE

Номер: US20200107948A1
Автор: BASHIRI Mehran, LUK Henry, OO Elena
Принадлежит:

An implant delivery system comprises a delivery catheter and a delivery mechanism slidably disposed in a lumen of the delivery catheter. The delivery mechanism comprises an annular channel and a compressible annular bushing disposed within the annular channel. The annular bushing is configured for being placed between a compressive profile and an expanded profile. The implant delivery system further comprises an implant coaxially disposed between the delivery catheter and the delivery mechanism. The delivery catheter lumen is sized to maintain an engagement element of the implant within the annular channel and to urge the annular bushing into the compressive profile. The implant constrains a distal tip of the delivery mechanism to assume a straight geometry. The distal tip is configured for assuming a curved geometry when the implant is deployed from the delivery catheter. 1. An implant delivery system , comprising:a delivery catheter having a lumen;an elongate delivery mechanism slidably disposed in the lumen of the delivery catheter, the elongate delivery mechanism comprising an annular channel and a compressible annular bushing disposed within the annular channel, the annular bushing configured for being placed between a compressive profile and an expanded profile; andan implant being coaxially disposed between the delivery catheter and the elongate delivery mechanism, the medical implant comprising a tubular body and at least one engagement element affixed to the tubular body, the lumen of the delivery catheter being sized to maintain the at least one engagement element within the annular channel and to urge the annular bushing into the compressive profile, such that the elongate delivery mechanism and implant can be distally displaced in the lumen of the delivery catheter in unison to deploy the medical implant from the delivery catheter, thereby allowing the annular bushing to assume the expanded profile.2. The implant delivery system of claim 1 , wherein the ...

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Номер записи: 93
09-04-2020 дата публикации

MEDICAL IMPLANT DELIVERY SYSTEM AND METHOD OF USE

Номер: US20200107949A1
Автор: BASHIRI Mehran, LUK Henry, OO Elena
Принадлежит:

An implant delivery system comprises a delivery catheter and a delivery mechanism slidably disposed in a lumen of the delivery catheter. The delivery mechanism comprises an annular channel and a compressible annular bushing disposed within the annular channel. The annular bushing is configured for being placed between a compressive profile and an expanded profile. The implant delivery system further comprises an implant coaxially disposed between the delivery catheter and the delivery mechanism. The delivery catheter lumen is sized to maintain an engagement element of the implant within the annular channel and to urge the annular bushing into the compressive profile. The implant constrains a distal tip of the delivery mechanism to assume a straight geometry. The distal tip is configured for assuming a curved geometry when the implant is deployed from the delivery catheter. 1. An elongate delivery mechanism configured for being slidably disposed in a lumen of the delivery catheter , the elongate delivery mechanism comprising:a delivery wire having a proximal end and a distal end;a proximal bumper affixed to the distal end of the delivery wire;a distal bumper affixed to the distal end of the delivery wire distal to the proximal bumper, thereby creating an annular channel between the proximal and distal bumpers; anda compressible annular bushing disposed within the annular channel, the annular bushing configured for being placed between a compressive profile and an expanded profile,wherein the distal end of the delivery wire is configured receiving an implant at a location distal to the distal bumper.2. The elongate delivery mechanism of claim 1 , further comprisinga coil disposed on the distal end of the delivery wire distal to the distal bumper; anda tubular distal tip affixed over the coil, wherein the tubular distal tip is configured for receiving the medical implant.3. The elongate delivery mechanism of claim 2 , wherein the coil is radiopaque.4. The elongate ...

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Номер записи: 94
09-04-2020 дата публикации

Cryro device and method for processing cannabis flowers

Номер: US20200108398A1
Автор: Walter L. Tharp
Принадлежит: Individual

A device and method for cleaning flowers and buds of plants of leaves and plant matter and particulate is provided. The buds are cleaned within a rotating drum having openings in a circular sidewall which rotates adjacent jets emitting gas. Freezing of the plant material and concurrent impacts from ice crystals formed by emitting gas, cleans the buds and flowers of unwanted plant material and particulate.

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Номер записи: 95
03-05-2018 дата публикации

Suture esophageal stent introducer

Номер: US20180116841A1
Автор: Criostoir O. Bhealtun, Gerard Treacy, Melissa Anenden, Triona Campbell, Vincent Mchugo
Принадлежит: Cook Medical Technologies LLC

A stent delivery system includes an elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the elongate shaft. A stent is positioned on the stent receiving portion of the elongate shaft, the stent having a first configuration and a second configuration. A sheath is positioned longitudinally around the inner elongate shaft, the elongate shaft extending coaxially at least partially within the lumen of the sheath is also included. A proximal constraining arrangement is engaged with a proximal end of the stent. A distal constraining arrangement is engaged with a distal end of the stent. A handle assembly comprising an axially moveable outer shuttle, a first inner shuttle operably connected to the proximal constraining arrangement and a second inner shuttle operably connected to the distal constraining arrangement and outer sheath.

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Номер записи: 96
03-05-2018 дата публикации

ENDOPROSTHESIS DELIVERY SYSTEMS WITH DEPLOYMENT AIDS

Номер: US20180116842A1
Автор: Armstrong Joseph R., Cully Edward H., Duncan Jeffrey B., Kovach Larry J., Pajot Douglas F., Short Brandon C., Ulm Mark J., Vonesh Michael J.
Принадлежит:

The present disclosure includes an endoprosthesis delivery system comprising an elongate member, such as a catheter, an endoprosthesis, a covering member disposed about the endoprosthesis, and at least one flexible element situated between the endoprosthesis and the covering member. The covering member can extend beyond an end of the endoprosthesis. In operation, as the covering member is removed, the flexible element can guide the covering member over the end of the endoprosthesis to prevent entanglement between the end of the endoprosthesis and the covering member. 1. An endoprosthesis delivery system comprising:an elongate member;a tubular endoprosthesis comprising a distal edge and being disposed about the elongate member;a first end cap having a distal end and a proximal end, and being positioned such that the proximal end of the first end cap is adjacent to the distal edge of the endoprosthesis; anda covering member at least partially covering and constraining the endoprosthesis to a delivery diameter, and the covering member extending over at least a portion of the first end cap and being removable during a deployment of the constrained endoprosthesis.2. The endoprosthesis delivery system of claim 1 , wherein the first end cap is adapted to prevent the covering member from catching on the distal edge of the endoprosthesis as the covering member is removed.3. The delivery system of claim 2 , wherein the covering member is a sheath that translates relative to the elongate member as it is retracted during the deployment of the constrained endoprosthesis.4. The delivery system of claim 2 , wherein the covering member comprises a plurality of fibers.5. The delivery system of claim 4 , wherein the covering member is configured to unravel to facilitate deployment of the constrained endoprosthesis.6. The delivery system of claim 1 , wherein a diameter of the first end cap and the delivery diameter of the constrained endoprosthesis are substantially the same.7. The ...

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Номер записи: 97
03-05-2018 дата публикации

Suture esophageal stent introducer

Номер: US20180116846A1
Автор: Criostoir O. Bhealtun, Gerard Treacy, Melissa Anenden, Triona Campbell, Vincent Mchugo
Принадлежит: Cook Medical Technologies LLC

A stent delivery system includes an elongate shaft including a proximal portion, a distal portion, at least one lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the elongate shaft. A stent is positioned on the stent receiving portion of the elongate shaft, the stent having a first configuration and a second configuration. A proximal constraining arrangement is engaged with a proximal end of the stent. A distal constraining arrangement is engaged with a distal end of the stent. A release wire is disposed through the elongate shaft and releasably engaged with portion of the proximal constraining arrangement and the distal constraining arrangement member. A handle assembly is operably connected to the proximal constraining arrangement and the distal constraining arrangement, the handle assembly comprising a brake assembly. The proximal arrangement and the distal arrangement are coupled to the brake of the handle.

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Номер записи: 98
17-07-2014 дата публикации

Systems, Methods and Devices for Retrograde Pericardial Release of a Prosthetic Heart Valve

Номер: US20140200649A1
Автор: Fabien Lombardi, Iker MALLABIABARRENA, Jacques Essinger, Jean-Luc Hefti, Luc Mantanus, Michael Paris, Reynald Passerini, Stephane Delaloye, Youssef Biadillah
Принадлежит: Symetis SA

Embodiments of the present disclosure are directed to stents, valved-stents, and associated methods and systems for their delivery via minimally-invasive surgery.

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Номер записи: 99
25-08-2022 дата публикации

STENT-GRAFT PROSTHESIS WITH PRESSURE RELIEF PORTS

Номер: US20220265417A1
Автор: Baranowski Ian Benjamin, Bronez Tessa, Perkins Keith D.
Принадлежит:

A stent-graft prosthesis includes a graft material having a tubular construction, a frame coupled to the graft material, and a port or opening disposed between a proximal end and a distal end of the graft material. The port or opening is open during deployment of the stent-graft prosthesis to enable blood flow from a graft lumen within the graft material to exit the graft lumen, and the port or opening is blocked upon full deployment of the stent-graft prosthesis to prevent blood flow from within the graft lumen from exiting the graft lumen through the port or opening. 1. A stent-graft prosthesis comprising:a graft material having a tubular construction, the graft material including a proximal end, a distal end, and a graft lumen extending between the proximal end and the distal end;a frame coupled to the graft material; anda port disposed between the proximal end and the distal end of the graft material, wherein the port enables blood flow from the within the graft lumen to exit the graft lumen,wherein the graft material includes an unsupported graft portion between adjacent frame members of the frame, andwherein the stent-graft prosthesis is configured to be folded in situ in the unsupported graft portion into a folded configuration such that the port is blocked to prevent blood flow from within the graft lumen from exiting the graft lumen through the port.2. The stent-graft prosthesis of claim 1 , wherein the unsupported graft portion is in the range of about 4 mm to about 40 mm claim 1 , or about 10 mm to about 30 mm claim 1 , or about 15 mm to about 25 mm in length.3. The stent-graft prosthesis of claim 1 , wherein the port comprises a plurality of ports disposed around a circumference of the graft material.4. The stent-graft prosthesis of claim 1 , wherein in the folded configuration claim 1 , the unsupported portion is folded such that at least a portion of the unsupported portion is disposed within the graft lumen of the graft material proximal of the ...

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Номер записи: 100