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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3077. Отображено 100.
26-01-2012 дата публикации

Control System for a Stent Delivery System

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

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

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Номер записи: 1
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: 2
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: 3
28-03-2013 дата публикации

Endoluminal prosthesis with steerable branch

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

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

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Номер записи: 4
25-04-2013 дата публикации

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

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

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

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Номер записи: 5
02-05-2013 дата публикации

Delivery system for vascular implant

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

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

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Номер записи: 6
16-05-2013 дата публикации

Surgical Implant Devices and Methods for Their Manufacture and Use

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

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

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Номер записи: 7
27-06-2013 дата публикации

Delivery system for staged stent release

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

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

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Номер записи: 8
31-10-2013 дата публикации

Stent-graft prosthesis for placement in the abdominal aorta

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

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

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Номер записи: 9
19-12-2013 дата публикации

Bifurcated endovascular prosthesis having tethered contralateral leg

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

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

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Номер записи: 10
13-03-2014 дата публикации

Implant deployment apparatus

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

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

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Номер записи: 11
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

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

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

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Номер записи: 12
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

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

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

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Номер записи: 13
07-01-2021 дата публикации

VASCULAR AND AORTIC GRAFTS AND DEPLOYMENT TOOLS

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

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

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Номер записи: 14
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: 15
03-01-2019 дата публикации

AXIAL LOCK AND RELEASE STENT DEPLOYMENT SYSTEM

Номер: US20190000651A1
Автор: Ryan Michael, Treacy Gerard
Принадлежит: Cook Medical Technologies LLC

The present disclosure relates to stents and methods of delivering and deploying the same. The stents include fasteners about their periphery and when the stent is radially compressed, the fasteners come into alignment such that a device may be placed through openings in the fasteners to hold the stent in the radially compressed configuration. When the device is removed from the openings, the stent may expand. 1. A self-expanding stent comprising a proximal portion , a mid-section , and a distal portion , wherein one or more of the proximal portion , mid-section , and distal portion comprises a plurality of fasteners , the plurality of fasteners being disposed about a periphery of the stent and woven through one or more open cells of the stent , wherein each fastener of the plurality of fasteners comprises an opening , wherein a rod comprises a plurality of release pins attached by sutures to a distal rod portion , wherein each release pin of the plurality of release pins is disposed through the openings of two or more of the fasteners , thereby holding the stent in a radially compressed configuration.2. The stent of claim 1 , wherein when the stent is in a radially compressed configuration claim 1 , the openings of each fastener align or become concentric in a lumen of the stent.3. The stent of claim 1 , wherein a length of at least one suture is longer than a length of the other sutures.4. The stent of claim 1 , wherein the proximal portion comprises a proximal plurality of fasteners claim 1 , the distal portion comprises a distal plurality of fasteners claim 1 , and the mid-section comprises a mid-plurality of fasteners.5. The stent of claim 4 , wherein each fastener comprises an opening and when the stent is in a radially compressed configuration claim 4 , the openings of each fastener of the proximal plurality are in alignment claim 4 , the openings of each fastener of the mid-plurality are in alignment claim 4 , and the openings of each fastener of the distal ...

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Номер записи: 16
04-01-2018 дата публикации

DELIVERY DEVICE AND METHOD OF DELIVERY

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

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

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Номер записи: 17
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: 18
05-01-2017 дата публикации

SYSTEM FOR CONNECTING A MEDICAL IMPLANT TO AN INSERTION AID

Номер: US20170000632A1
Автор: SCHAEFER Joachim
Принадлежит:

The invention relates to a system for connecting a medical implant to an insertion aid, comprising: a first spiral connecting device at the proximal end of the medical implant, a second spiral connecting device at the distal end of the insertion aid, a core wire, which in a first operating state of the system fixes the first spiral connecting device and the second spiral connecting device in relation to one another, wherein in the first operating state the first spiral connecting device and the second spiral connecting device at least partially engage in one another and the core wire extends through the first spiral connecting device and the second spiral connecting device. 1. A system for connecting a medical implant to an insertion aid comprising:a first helical connecting member at the proximal end of the medical implant;a second helical connecting member at the distal end of the insertion aid;a core wire, which in a first operating state of the system locks the first helical connecting member and the second helical connecting member relative to each other; andwherein in the first operating state the first helical connecting member and the second helical connecting member at least partially engage each other and the core wire extends through the first helical connecting member and the second helical connecting member.2. The system according to claim 1 , wherein the insertion aid is a spiral claim 1 , wherein the single turns of the spiral outside the first helical connecting member are preferably located directly adjacent to each other.3. The system according to claim 1 , wherein the medical implant is a spiral claim 1 , wherein the single turns of the spiral outside the second helical connecting member are preferably at least partly located adjacent to each other.4. The system according to claim 1 , wherein the single turns of the first helical connecting member and/or the second helical connecting member are spaced from each other.5. The system according to ...

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Номер записи: 19
05-01-2017 дата публикации

DELIVERY DEVICE AND METHOD OF DELIVERY

Номер: US20170000633A1
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: 20
12-01-2017 дата публикации

Delivery System for A Self-Expanding Device for Placement in a Bodily Lumen

Номер: US20170007432A1
Автор: Dorn Jürgen, Hoffman Martina, Tollner Thomas
Принадлежит:

A delivery system () for a self-expanding device () for placement in a bodily lumen, the system comprising a sheath () that confines the device to a radially compact delivery disposition until the device is to be released into the lumen, the system having an elongate pull element () to be pulled proximally from its proximal end, which pull element is arranged radially inside the sheath for pulling preferentially on a pull zone on the circumference of the distal end of the sheath, thereby to tear the sheath progressively along a tear line running the length of the sheath, starting at the distal end of the sheath, to release the device from the confining effect of the sheath, progressively, beginning at the distal end of the device and wherein the sheath is of polyethylene-terephthalate, cold drawn along its long axis, and in that the distal end of the sheath tapers inwardly to provide an inwardly tapered distal end of the system. 1. A system comprising:a vascular body having a distal body region;a vascularly implantable medical device; a pull region on a circumference of a distal end of the sheath;', 'a lengthwise wall that has a first perforated line adjacent the pull region and a second perforated line separated from the first perforated;, 'a sheath havinga first pull element having proximal and distal ends with the distal end connecting to the sheath adjacent the pull region;a second pull element having proximal and distal ends with the distal end connecting to the sheath adjacent the pull region;andwherein the proximal end of the first pull elements extends or connects to a pull wire that extends from the distal end of the sheath between the medical device and the sheath and that emerges from a proximal end of the sheath.2. The system of further comprising:an undulating portion having a distal end connected to the proximal end of the second pull element;anda coupling mechanism positioned coaxially around the body and connected to the proximal end of the first ...

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Номер записи: 21
12-01-2017 дата публикации

STENT PLACEMENT DEVICE

Номер: US20170007433A1
Автор: BYRNE James, MA Jiayao, YOU Zhong
Принадлежит: OXFORD UNIVERSITY INNOVATION LIMITED

A stent placement assembly is disclosed. In disclosed example, the stent placement assembly comprises a stent placement assembly, comprising: a holding catheter comprising a longitudinal lumen for receiving a stent, and an output orifice at a distal end; a stopper member positioned within said lumen and moveable longitudinally relative thereto, the stopper member being configured to engage with the stent in order to restrict movement of the stent in a proximal direction; a first anchor member coupled to the holding catheter at a proximal end thereof; a second anchor member coupled to the stopper member at a proximal end thereof; and a displacement device comprising a first engagement member and a second engagement member, the first and second engagement members being configured to engage respectively with the first and second anchor members in such a way that displacement of the first engagement member relative to the second engagement member causes a corresponding displacement between the first and second anchor members, wherein: the displacement device further comprises: a handle rigidly connected to one of the first and second engagement members and a user actuatable displacement mechanism configured to be actuatable by a user while gripping the handle, the actuation being such as to cause displacement of the other one of the first and second engagement members relative to the handle thereby causing the holding catheter to withdraw in a proximal direction relative to the stopper member and thereby release the stent through the output orifice. 1. A stent placement assembly , comprising:a holding catheter comprising a longitudinal lumen for receiving a stent, and an output orifice at a distal end;a stopper member positioned within said lumen and moveable longitudinally relative thereto, the stopper member being configured to engage with the stent in order to restrict movement of the stent in a proximal direction;a first anchor member coupled to the holding catheter ...

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Номер записи: 22
14-01-2016 дата публикации

Variable scale stent deployment device

Номер: US20160008153A1
Автор: Dennis L. Steffen, Eric K. Mangiardi
Принадлежит: QUALIMED INNOVATIVE MEDIZINPRODUKTE GMBH

A variable scale medical implant deployment device comprising a variable inner diameter scale sleeve insert is provided. Also described are kits containing the variable scale medical implant deployment device and methods for deploying a medical implant into a body lumen using a variable scale medical implant deployment device.

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Номер записи: 23
11-01-2018 дата публикации

INTRODUCER FOR A SIDE BRANCH DEVICE

Номер: US20180008395A1
Автор: Hartley David Ernest
Принадлежит: Cook Medical Technologies LLC

An introduction arrangement for a fenestrated or branched stent graft () intended for deployment into the lumen of a vessel having a blind vessel extending from it. The introducer () has a distal end intended to remain outside a patient in use and a proximal end with a nose cone dilator () and an arrangement to retain the branched stent graft distally of the nose cone dilator. A sheath () on the introducer extends over the branched stent graft to the nose cone dilator. An indwelling catheter () extends from the distal end of the introducer and enters the fenestration or side arm and through to the nose cone dilator, the indwelling catheter has a guide wire () extending through it. The guide wire can be extended beyond the nose cone dilator in use before the sheath is withdrawn from the branched stent graft so that it can be snared from the contra-lateral artery. 1. An introduction arrangement for a branched stent graft intended for deployment into the lumen of a vessel having a blind vessel extending therefrom; the branched stent graft having a main tubular body having a distal end and a proximal end with a main lumen therethrough , a side arm extending from the main body and having a side arm lumen therethrough and in fluid communication with the main lumen , the introduction arrangement including an introducer , the introducer having a distal end intended to remain outside a patient in use and a proximal end , the proximal end having a nose cone dilator and an arrangement to retain the branched stent graft thereon distally of the nose cone dilator , the branched stent graft being retained on the introducer and a sheath on the introducer extending over the branched stent graft to the nose cone dilator , an indwelling catheter extending from the distal end of the introducer through an introducer lumen in the introducer to the branched stent graft , exiting from the introducer lumen at a distal end of the branched stent graft and entering the distal end of the side ...

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Номер записи: 24
11-01-2018 дата публикации

Introducer for a side branch device

Номер: US20180008396A1
Автор: David Ernest Hartley
Принадлежит: Cook Medical Technologies LLC

An introduction arrangement for a fenestrated or branched stent graft ( 13 ) intended for deployment into the lumen of a vessel having a blind vessel extending from it. The introducer ( 1 ) has a distal end intended to remain outside a patient in use and a proximal end with a nose cone dilator ( 11 ) and an arrangement to retain the branched stent graft distally of the nose cone dilator. A sheath ( 15 ) on the introducer extends over the branched stent graft to the nose cone dilator. An indwelling catheter ( 21 ) extends from the distal end of the introducer and enters the fenestration or side arm and through to the nose cone dilator, the indwelling catheter has a guide wire ( 29 ) extending through it. The guide wire can be extended beyond the nose cone dilator in use before the sheath is withdrawn from the branched stent graft so that it can be snared from the contra-lateral artery.

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Номер записи: 25
27-01-2022 дата публикации

STENT DEVICE

Номер: US20220023080A1
Автор: McDonald Gary
Принадлежит: Vascutek Limited

The present invention relates to a stent device comprising a sleeve formed with a plurality of compactable spring ring elements arranged along its length, the sleeve having compacted and expanded states. Each said ring element has an undulating profile at the surface of the sleeve so that adjacent ring elements at least partially overlap along the longitudinal extent of the device, the ring elements being compactable against their natural resilience to reduce the outer diameter of the sleeve for allowing housing of the compacted stent device in a frangible sheath, with adjacent ring elements being inter-coupled so as to substantially maintain their axial spacing between the compacted and expanded states. 1. A stent device comprising: a sleeve formed with a plurality of compactable spring ring elements arranged along its length , the sleeve having compacted and expanded states; wherein each said ring element has an undulating profile at the surface of the sleeve so that adjacent ring elements at least partially overlap along the longitudinal extent of the device , the ring elements being compactable against their natural resilience to reduce the outer diameter of the sleeve for allowing housing of the compacted stent device in a frangible sheath , with adjacent ring elements being inter-coupled so as to substantially maintain their axial spacing between the compacted and expanded states.2. A stent device as claimed in claim 1 , wherein the undulating profile of each ring element extends circumferentially around the surface of the sleeve at the sleeve's periphery.3. A stent device as claimed in claim 1 , wherein each ring element has a hyperbolic paraboloid profile.4. A stent device as claimed in claim 1 , wherein when in a compacted configuration claim 1 , the peaks of one ring element overlie the valleys of an axially adjacent ring element.5. A stent device as claimed in claim 1 , wherein the ring elements are inter-coupled by way of mounting to the sleeve material. ...

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Номер записи: 26
10-01-2019 дата публикации

STEERABLE RAIL DELIVERY SYSTEM

Номер: US20190008640A1
Автор: AGUILAR, Chow Patrick, Cooper Alexander H., Edwards Jesse Robert, Gutierrez Tarannum Ishaq, Johnson Garrett Dallas, JR. RAMON, Landon David Robert, Luong Hieu Minh, Okabe Hiroshi, Rabito Glen T., Sanchez Julio Cesar, Scheinblum Taylor Jacob, Stewart Kevin M.
Принадлежит:

Devices, systems and methods are described herein to provide improved steerability for delivering a prosthesis to a body location, for example, for delivering a replacement mitral valve to a native mitral valve location. The steerable delivery system can contain a steerable rail configured for multi-plane bending to direct a distal end of the delivery system. 1. A delivery system for delivering an expandable implant to a body location , the delivery system comprising:an outer sheath assembly comprising an outer shaft having an outer lumen and a proximal end and a distal end, wherein the outer sheath assembly comprises an implant retention area configured to retain the expandable implant in a compressed configuration;a rail assembly located within the outer lumen, the rail assembly comprising a rail shaft having a rail lumen and a proximal end and a distal end, wherein the rail assembly comprises one or more pull wires attached on an inner surface of the rail shaft configured to provide an axial force on the rail shaft to steer the rail assembly; andan inner assembly located within the outer lumen, the inner assembly comprising an inner shaft having an inner lumen and a proximal end and a distal end, wherein the inner assembly comprises an inner retention member configured to be releasably attached to the expandable implant;wherein the outer sheath assembly and the inner assembly are configured to move together distally relative to the rail assembly while the expandable implant remains in the compressed configuration; andwherein the outer sheath assembly is configured to retract proximally relative to the inner assembly in order to at least partially expand the expandable implant from the compressed configuration.2. The delivery system of claim 1 , wherein the inner assembly is located within the rail lumen.3. The delivery system of claim 1 , wherein the one or more pull wires comprise a proximal pull wire and a distal pull wire claim 1 , wherein the proximal pull ...

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Номер записи: 27
03-02-2022 дата публикации

CONSTRAINING SYSTEMS AND ASSOCIATED METHODS

Номер: US20220031485A1
Автор: Ramirez Gil R., Stastka Jerry J., Tennant John S., Yamamoto Marc Y.
Принадлежит:

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include an implantable medical device and a removable constraint. The removable constraint may be arranged about and configured to releasably constrain the implantable medical device with the removable constraint including at least two interlocking strands having different strand properties. 1. A delivery system comprising:an implantable medical device; anda removable constraint arranged about and configured to releasably constrain the implantable medical device, the removable constraint including at least two interlocking strands including a first interlocking strand having a different strand property than a second interlocking strand, wherein the first interlocking strand comprises a deployment line configured to release the removeable constraint in response to a force applied to the deployment line.2. The delivery system of claim 1 , wherein a ratio of implantable medical device delivery diameter to deployment diameter is less than 0.3.3. The delivery system of claim 1 , wherein the differing strand property comprises strand thickness.4. The delivery system of claim 1 , wherein the differing strand property comprises strand denier.5. The delivery system of claim 1 , wherein the differing strand property comprises strand coefficient of friction.6. The delivery system of claim 1 , wherein the differing strand property comprises strand material.7. The delivery system of claim 1 , wherein the differing strand property comprises strand stiffness.8. The delivery system of claim 1 , wherein the implantable medical device has a radial force at a delivery diameter of the implantable medical device claim 1 , and wherein the at least two interlocking strands are adapted to be removed with a knit force applied to the deployment line; and wherein a ratio of the radial force to the knit force is between about 100 and about 500.9. The delivery system of claim 8 , wherein the ...

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Номер записи: 28
18-01-2018 дата публикации

SYSTEM FOR INSTALLING AN INPLANT, IMPLANT, AND INSTALLATION TOOL

Номер: US20180014830A1
Автор: NATHE Niklas, NEUMANN Till, SCHEUERMANN TORSTEN
Принадлежит:

A system for inserting an implant at an implantation site has a tubular catheter through which the implant to be installed is transported in a longitudinal travel direction to the implantation site. A ring is spaced forward in the direction to the implantation site from the implant and is longitudinally coupled to the implant. A guide wire in the tubular catheter also can pass through the ring. A push tube in the tubular catheter the guide wire is slidable on the guide wire longitudinally forward toward the implantation site and has a front end closer to the implantation site and for which the ring forms an impenetrable stop. 1. A system for inserting an implant at an implantation site , the system comprising:a tubular catheter through which the implant to be installed is transported in a longitudinal travel direction to the implantation site,a ring spaced forward in the direction to the implantation site from the implant and longitudinally coupled th the implant;a guide wire in the tubular catheter; anda push tube in the tubular catheter surrounding the guide wire and slidable on the guide wire longitudinally forward toward the implantation site and having a front end closer to the implantation site and for which the ring forms an impenetrable stop.2. The system defined in claim 1 , wherein the implant is provided inside the tubular catheter laterally adjacent the guide wire and push tube and that the guide wire extends only through the ring of the implant.3. The system defined in claim 1 , wherein the guide wire and the push tube extend completely or partly through the implant in the tubular catheter in the longitudinal direction toward the implantation site.4. The system defined in claim 1 , wherein the ring of the implant is part of a anchor element of the implant with which the implant can be secured in the implantation site after implantation.5. The system defined in claim 1 , wherein the ring of the implant is spaced apart from the rest of the implant by at ...

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Номер записи: 29
18-01-2018 дата публикации

PISTOL STENT DELIVERY DEVICE AND METHOD OF OPERATING SAME

Номер: US20180014954A1
Автор: Bradway Ryan
Принадлежит:

The stent delivery device includes a pistol shaped handle with a barrel portion extending atop a grip portion. A trigger actuator is pivotably mounted to the pistol shaped handle and defines an angle with respect to the grip portion. A carrier is slidably mounted to the barrel portion of the pistol shaped handle. A mechanical linkage, which includes a roller clutch, interconnects the trigger actuator to the carrier. The angle is reduced responsive to pivoting the trigger actuator in an actuation direction toward the grip portion, and the angle is increased responsive to pivoting the trigger actuator in a re-set direction. The roller clutch is oriented in the mechanical linkage to rotate responsive to the trigger pivoting in the re-set direction, but the roller clutch is held against rotation responsive to pivoting the trigger in the actuation direction. 1. A stent delivery device comprising:a piston shaped handle with a barrel portion extending atop a grip portion;a trigger actuator pivotably mounted to the pistol shaped handle and defining an angle with respect to the grip portion;a carrier slidably mounted to the barrel portion of the pistol shaped handle;a mechanical linkage, which includes a roller clutch, interconnecting the trigger actuator to the carrier;wherein the angle is reduced responsive to pivoting the trigger actuator in an actuation direction toward the grip portion, and the angle is increased responsive to pivoting the trigger actuator in a reset direction;wherein the roller clutch is oriented in the mechanical linkage to rotate responsive to the trigger pivoting in the reset direction, but the roller clutch holding against rotation responsive to pivoting the trigger in the actuation direction.2. The stent delivery device of wherein the mechanical linkage is an analog mechanical linkage; andthe carrier is slidable a continuum of distances along the barrel portion proportional to a reduction of the angle when the trigger actuator is pivoted in the ...

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Номер записи: 30
18-01-2018 дата публикации

CONTROLLED EXPANSION STENT GRAFT DELIVERY SYSTEM

Номер: US20180014955A1
Автор: Baxter Charles, Bradway Ryan, Kratzberg Jarin
Принадлежит:

A controlled expansion stent graft delivery system has an adjustment configuration in which a retractable sheath is at a retracted position out of contact with a stent graft, but expansion of the stent graft is controlled by a control tether, which has a middle segment wrapped around a fabric tube of the stent graft. The stent graft changes diameter responsive to a tension level in the control tether. At least one of an orientation and a position of the stent graft may be adjusted during controlled expansion via the control tether. 1. A stent graft and control tether assembly comprising:a fabric tube attached to, and supported by, a self expanding stent;a plurality of loops attached to at least one of the fabric tube and the self expanding stent, and each of the loops having an opening exposed on a radially outward side of the fabric tube;a control tether with a first segment, a middle segment and a second segment;the middle segment being wrapped around the fabric tube and being received through the opening of each of the loops;the first segment extending beyond one end of the fabric tube;the second segment, which is longer than the first segment, extending beyond an opposite end of the fabric tube.2. The stent graft and control tether assembly of wherein the opening of each of the loops is at least several times larger than a diameter of the control tether so that the control tether is freely slidable through the respective opening.3. The stent graft and control tether assembly of wherein the control tether is received through one of the loops exactly twice and received through an other one of the loops exactly once.4. The stent graft and control tether assembly of wherein the self expanding stent has a reduced diameter configuration when the control tether is in tension; andthe self expanding stent has an enlarged diameter configuration when the control tether is untensioned.5. The stent graft and control tether assembly of wherein the plurality of loops is a ...

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Номер записи: 31
21-01-2016 дата публикации

SYSTEMS AND METHODS FOR DEPLOYING A PORTION OF A STENT USING AT LEAST ONE COILED MEMBER

Номер: US20160015542A1
Автор: DeBruyne Michael P., Hadley Rick, Havel William J., Hopkins Tony C., Kratzberg Jarin, Roeder Blayne A., Vad Siddharth, Wagner Zachary
Принадлежит: COOK MEDICAL TECHNOLOGIES LLC.

The present embodiments provide systems and methods for deploying at least a portion of a stent. In one embodiment, the system comprises a cannula having an outer surface, and at least one coiled member having proximal and distal ends and a plurality of turns disposed therebetween. One of the proximal and distal ends of the coiled member is secured to the outer surface of the cannula, and the other of the proximal and distal ends of the coiled member is unsecured relative to the outer surface of the cannula. A portion of a stent is looped around the unsecured end of the coiled member and disposed within spacing between adjacent turns of the coiled member. Rotation of the cannula subsequently causes the portion of the stent to disengage from the coiled member.

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Номер записи: 32
21-01-2016 дата публикации

TREATMENT DEVICE FOR A BLOOD CIRCULATION CONDUIT

Номер: US20160015543A1
Автор: PEROUSE Eric, Styrc Witold
Принадлежит:

The device includes: 1. A device for treating a blood circulation conduit including:a tubular endoprosthesis with a central axis, deployable between a contracted condition and a deployed condition,a system for releasing the tubular endoprosthesis including a capsule defining an inner volume receiving the tubular endoprosthesis in its contracted condition, the capsule being displaceable with respect to the tubular endoprosthesis along the central axis between a position for covering the tubular endoprosthesis and a position for releasing the tubular endoprosthesis;a mechanism for opening the capsule able to be maneuvered in the covering position for having the capsule pass from a closed configuration for retaining the tubular endoprosthesis to an open configuration radially expansed for releasing the tubular endoprosthesis, the tubular endoprosthesis being able to be kept at least partly retracted in the inner volume during the passing of the capsule from its closed configuration to its open configuration.2. The device according to claim 1 , wherein the opening mechanism is able to release at least one side passage through the capsule upon passing of the capsule from its closed configuration to its open configuration.3. The device according to claim 2 , wherein the edges of the side passage in the open configuration are located in contact with each other in the closed configuration.4. The device according to claim 2 , wherein the opening mechanism includes at least one member for cutting out the capsule claim 2 , the side passage being generated by cutting out the capsule during the maneuvering of the opening mechanism.5. The device according to claim 2 , wherein the capsule delimits the side passage claim 2 , the opening mechanism including at least one member for closing the side passage claim 2 , releasable during the maneuvering of the opening mechanism.6. The device according to claim 2 , wherein the tubular endoprosthesis remains confined in the inner volume ...

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Номер записи: 33
17-01-2019 дата публикации

STENTED PROSTHESIS DELIVERY DEVICE HAVING TORQUE SHAFT

Номер: US20190015206A1
Автор: FALK WAYNE, LEHMANN Luke, McGuinn Alan
Принадлежит: Medtronic Vascular, Inc.

Delivery devices for delivering a stented prosthesis to a target site are disclosed. Certain disclosed delivery devices include a handle assembly including an actuator, a shaft assembly interconnected to the handle assembly, and are configured to releasably retain the stented prosthesis to the delivery device with at least one elongate tension member. The delivery devices further include a torque shaft that is configured to apply and adjust the amount of tension in the each tension member. For example, the torque shaft can be configured to wind and unwind each elongate tension member around the torque shaft to correspondingly compress and expand the stented prosthesis. The torque shaft can be controlled with an actuator provided in the handle assembly, for example. In some embodiments, the actuator is further configured to axially move the torque shaft. 1. A delivery device for delivering a stented prosthesis to a native heart valve , the delivery device comprising:a handle assembly;a shaft assembly including a lumen and a distal portion; wherein the shaft assembly is interconnected to the handle assembly and configured to releasably retain the stented prosthesis on the distal portion with an elongate tension member;an actuator; anda torque shaft positioned at least partially within the lumen that can be rotated independently from the distal portion in first and second directions via the actuator to respectively wind and unwind the tension member around the torque shaft.2. The delivery device of claim 1 , further comprising a plurality of elongate tension members; wherein each tension member winds around the torque shaft when the torque shaft rotates in the first direction and the tension member unwinds from the torque shaft when the torque shaft rotates in the second direction.3. The delivery device of claim 1 , wherein the actuator is part of the handle assembly.4. The delivery device of claim 1 , wherein the actuator is further configured to move the torque shaft ...

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Номер записи: 34
17-01-2019 дата публикации

STENTS FOR USE WITH TRANSLUMINAL ANGIOPLASTY DEVICES

Номер: US20190015231A1
Автор: Sachar Ravish, SERINA Eugene
Принадлежит:

A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body. 128-. (canceled)29. An elongated , tubular stent extending around a longitudinal axis , the stent comprising:a plurality of axially spaced sinusoidal ring segments, each sinusoidal ring segment extending circumferentially around the axis and comprising;a series of left facing apices,a series of right facing apices, anda series of connecting sections, wherein each connecting section connects a left facing apex to a right facing apex and comprises at least one narrow portion and at least one wide portion,wherein two left-most narrow portions of two circumferentially adjacent connecting sections meet at a left facing apex to define a left elongate opening, and wherein two right-most narrow portions of two circumferentially adjacent connecting sections meet at a right facing apex to define a right-hand elongate opening, anda plurality of axially spaced struts, each strut positioned between two adjacent sinusoidal ring segments and extending in both axial and circumferential directions, wherein each strut comprises;a left axially extending section that extends into a first sinusoidal ring segment, past a right facing apex of the first sinusoidal ring segment, and attaches to a centrally positioned wide ...

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Номер записи: 35
21-01-2021 дата публикации

GEAR DRIVE MECHANISM FOR HEART VALVE DELIVERY APPARATUS

Номер: US20210015606A1
Автор: Cohen Oren, Neumann Yair A., Witzman Ofir
Принадлежит: EDWARDS LIFESCIENCES CORPORATION

A prosthetic valve delivery apparatus can comprise a handle, a gearbox, an input torque shaft and a plurality of output torque shafts. The input torque shaft can extend distally from the handle and can have a distal end portion operatively connected to the gearbox. The output torque shafts can be operatively connected to and extend distally from the gearbox. Rotation of the input torque shaft can cause rotation of the output torque shafts via the gear box. 1. A delivery apparatus comprising:a handle;an outer shaft extending distally from the handle;a gear mechanism arranged distal to the outer shaft;an input torque shaft extending distally from the handle through the outer shaft and having a distal end portion operatively connected to the gear mechanism; anda plurality of output torque shafts operatively connected to and extending distally from the gear mechanism, wherein the gear mechanism is configured to transfer rotational motion from the input torque shaft, which has a central rotation axis that is collinear with a central longitudinal axis of the delivery apparatus, to the plurality of output torque shafts, which each have a rotation axis that is radially offset from the central longitudinal axis.2. The delivery apparatus of claim 1 , wherein the distal end portion of the input torque shaft extends axially beyond the outer shaft.3. The delivery apparatus of claim 1 , further comprising a nose cone mounted on a distal end portion of an innermost shaft of the delivery apparatus claim 1 , the innermost shaft extending coaxially through the input torque shaft and having a proximal end portion coupled to the handle claim 1 , and wherein the gear mechanism is disposed closer to the nose cone than the handle.4. The delivery apparatus of claim 1 , further comprising a flex shaft extending through the outer shaft and having a proximal end portion connected to the handle and a distal end portion that extends axially beyond the outer shaft into a proximal opening of a ...

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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
28-01-2016 дата публикации

CATHETER WITH RETRACTABLE COVER AND PRESSURIZED FLUID

Номер: US20160022457A1
Автор: COHEN Itshak, MAXIMUK Shahar, Moiseyev Gilad
Принадлежит:

Apparatus and method for delivering and deploying an intravascular device into the vessel including an outer and inner tube that are axially linked by a housing structure at the proximal end of the catheter, and a retractable sleeve structure having a middle tube and sleeve tip. The sleeve tip is sealed to the inner tube at the distal end, and continuously extends into the middle tube. At the proximal end of the sleeve structure, the middle tube is sealed to either a housing structure or slideable proximal ring, forming a sealed chamber between the inner tube and the sleeve structure. A radial space is formed between the sleeve tip and the inner tube optimized for intravascular device placement. During retraction of the sleeve structure, the fold of the sleeve tip peels away from the device, which expands to its deployed state while minimizing axial forces and friction. 1. A catheter system having a distal end and a proximal end comprising:an inner tube having a first lumen;an outer tube having a second lumen, wherein said inner tube extends through said second lumen;a retractable sleeve positioned between the inner tube and outer tube, said retractable sleeve comprising a middle tube and a sleeve tip,wherein said retractable sleeve and said inner tube form a sealed chamber.2. The catheter system of according to claim 1 , further comprising a housing at the proximal end of said catheter system.3. The catheter system of claim 2 , wherein said housing comprises a distal opening claim 2 , wherein said outer tube is affixed to the distal opening of said housing.43. The catheter system according to any of - claims 1 , wherein the outer tube and inner tube are affixed relative to each other.54. The catheter system according to any of - claims 1 , wherein the catheter system further comprises an intravascular device.65. The catheter system according to any of - claims 1 , wherein said retractable sleeve structure comprises a sealable port.76. The catheter system according ...

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Номер записи: 38
26-01-2017 дата публикации

ARTICULATED COMMISSURE VALVE STENTS AND METHODS

Номер: US20170020696A1
Автор: White Jennifer K.
Принадлежит:

A support structure includes strut members interconnected by rotatable joints to form a series of linked scissor mechanisms. The structure can be remotely actuated to compress or expand its shape by adjusting the scissor joints within a range of motion. In particular, the support structure can be repositioned within the body lumen or retrieved from the lumen. The support structure can be employed to introduce and support a prosthetic valve within a body lumen. 1. A biocompatible articulated structure , comprising: a central lumen;', 'a central axis;', 'a plurality of discrete inner struts;', 'a plurality of discrete outer struts; and', 'at least two radial struts;, 'a tubular structure comprisingwherein each of the plurality of discrete inner struts and the plurality of discrete outer struts comprises first end, a second end, and a net length therebetween;wherein each of the at least two radial struts comprises an outer end, an inner end and a net length therebetween, wherein each outer end is coupled to at least one strut selected from the plurality of discrete inner struts and the plurality of discrete outer struts, and wherein the inner ends of the at least two radial struts are coupled together;wherein each of the plurality of discrete inner struts comprises articulations with at least three different discrete outer struts of the plurality of discrete outer struts;wherein each of the plurality of discrete outer struts comprises articulations with at least three different discrete inner struts of the plurality of discrete inner struts;wherein no discrete inner strut of the plurality of discrete inner struts comprises articulations with any other discrete inner strut of the plurality of discrete inner struts; andwherein no discrete outer strut of the plurality of discrete outer struts comprises articulations with any other discrete outer strut of the plurality of discrete outer struts.2. The biocompatible articulated structure of claim 1 , wherein the inner ends ...

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Номер записи: 39
25-01-2018 дата публикации

CATHETER SYSTEM FOR IMPLANTATION OF PROSTHETIC HEART VALVES

Номер: US20180021132A1
Автор: DAMM Christoph, FERRARI Markus, Figulla Hans-Reiner, Moszner Robert, Ottma Rüdiger
Принадлежит: JenaValve Technology, Inc.

The invention relates to a catheter for the transvascular implantation of prosthetic heart valves, in particular comprising self-expanding anchorage supports (), which allow a minimally invasive implantation of prosthetic heart valves. The aim of the invention is to reduce the risk to the patient during the implantation. To achieve this, according to the invention a prosthetic heart valve comprising anchorage supports is temporarily housed in a folded form in a cartridge-type unit () during the implantation. The cartridge-type unit can be fixed on the proximal end of a guide system (), which comprises a flexible region () that can be guided through the aorta. Actuating elements () run through the interior of the hollow guide system, said elements permitting sections of the cartridge-type unit to be displaced radially about their longitudinal axis and/or laterally in a proximal direction, thus allowing individual sections of the anchorage support and the associated prosthetic heart valve to be sequentially released. 116-. (canceled)17. A catheter system comprising:a prosthetic heart valve comprising a heart valve prosthesis attached to a support, wherein the support extends from a first end to a second end, and the second end of the support comprises retaining elements; and a guide system comprising a cartridge that includes a tip, an outer sleeve, and an inner sleeve, wherein the outer sleeve and the inner sleeve are configured to retain the prosthetic heart valve in a collapsed state radially therebetween, the inner sleeve including anchoring elements for engaging the retaining elements of the prosthetic heart valve, and wherein the outer sleeve and the inner sleeve are movable relative to each other along a longitudinal axis of the guide system for uncovering the prosthetic heart valve; and', a handle;', 'a tube comprising outer threads;', 'a first actuator coupled to the handle, wherein a first movement of the manipulating part, including rotation of the first ...

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Номер записи: 40
24-01-2019 дата публикации

SEGMENTED SELF-EXPANDING STENT

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

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

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Номер записи: 41
22-01-2015 дата публикации

Delivery Mechanism for Implantable Stent

Номер: US20150025615A1
Автор: Brendan McCrea, Christopher J. Brooks, Donald Van Royen, Scott L. Randall
Принадлежит: Bard Peripheral Vascular Inc

A system including a longitudinally elongated housing, a member for incremental rotation of a screw, which moves the screw longitudinally, and a longitudinal sheath connected to the screw. The system has a delivery configuration in which a sheath covers a stent bed, and a deployed configuration in which the sheath does not cover the stent bed because manipulation of the member has rotated the screw, which has moved the screw longitudinally, pulling the sheath off of the stent bed.

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Номер записи: 42
28-01-2021 дата публикации

System And Method For Percutaneous Removal Of Transcatheter Heart Valves

Номер: US20210022894A1
Автор: Alexander Miles, Ashley John, Follmer Brett, Ge Liang, Lord Brenna, Tseng Elaine
Принадлежит:

The disclosure features a method for removing a transcatheter heart valve from a heart in a patient by providing a removal device that deploys one or more transcatheter engagement elements to engage the transcatheter heart valve. 1. A method for removing a transcatheter heart valve from a heart in a patient , the method comprising:providing a removal device comprising a control handle and a flexible shaft, the flexible shaft having a proximal end coupled to the control handle, a lumen, and a distal opening;positioning the distal end of the flexible shaft such that the distal opening is disposed next to the transcatheter heart valve in the heart;deploying one or more transcatheter engagement elements from the lumen through the distal opening of the flexible shaft such that the one or more engagement elements engage the transcatheter heart valve; andretracting the one or more engagement elements such that the transcatheter heart valve is removed.2. The method of claim 1 , wherein the step of retracting the one or more engagement elements comprises pulling the transcatheter heart valve through the distal end into the lumen of the flexible shaft using the control handle.3. The method of claim 1 , further comprising deploying a diameter reduction element from the distal end of the flexible shaft claim 1 , wherein the diameter reduction element reduces the diameter of the transcatheter heart valve when the one or more engagement elements pull the transcatheter heart valve through the distal end into the lumen of the flexible shaft.4. The method of claim 3 , wherein the diameter reduction element is a funnel.5. The method of claim 1 , wherein each engagement element comprises an elongate element that enables the engagement element to reach the transcatheter heart valve and a jaw that grips the transcatheter heart valve.6. The method of claim 1 , wherein each engagement element comprises an elongate element that enables the engagement element to reach the transcatheter ...

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Номер записи: 43
02-02-2017 дата публикации

Medical Devices and Delivery Systems for Delivering Medical Devices

Номер: US20170027693A1
Автор: BRANDT Brian D., Hildebrand Daniel K., LEUNG Emma, Martin Kenneth M., McCollum Brian K., Paul David J., SALAHIEH Amr, Sutton Benjamin T.
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

Medical devices and delivery systems for delivering medical devices to a target location within a subject. In some embodiments the medical devices can be locked in a fully deployed and locked configuration. In some embodiments the delivery systems are configured with a single actuator to control the movement of multiple components of the delivery system. In some embodiments the actuator controls the independent and dependent movement of multiple components of the delivery system. 1. A method of deploying a medical device in a patient with a delivery system, comprising: providing a delivery system comprising a housing disposed external to the patient, wherein the housing comprises an actuator; actuating the actuator to move a first delivery system component independently of a second delivery system component; actuating the actuator to move the first delivery system component and the second delivery system component at the same time; and rotating the actuator to translate rotational movement into linear movement. This application is a continuation application of Ser. No. 14/144,899, filed Dec. 31, 2013, now U.S. Pat. No. 9,358,110, which is a divisional application of Ser. No. 13/287,420, filed Nov. 2, 2011, now U.S. Pat. No. 8,617,236, which is a divisional application of application Ser. No. 12/578,463, filed Oct. 13, 2009, now U.S. Pat. No. 8,328,868, which is a continuation-in-part application of application Ser. No. 10/982,388, filed Nov. 5, 2004, now U.S. Pat. No. 7,959,666; and also a continuation-in-part application of application Ser. No. 11/275,912, filed Feb. 2, 2006, now U.S. Pat. No. 7,824,443; which applications are incorporated by reference herein, each in its entirety, and to which applications we claim priority under 35 U.S.C. .sctn.120.This application claims the benefit under 35 U.S.C. .sctn.119 of U.S. Provisional Patent Application No. 61/104,509, filed Oct. 10, 2008; and 61/151,814, filed Feb. 11, 2009; which applications are incorporated by ...

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Номер записи: 44
02-02-2017 дата публикации

Delivery System Having a Single Handed Deployment Handle for a Retractable Outer Sheath

Номер: US20170027725A1
Автор: Argentine Jeffery
Принадлежит:

A delivery system for delivering a prosthesis, the delivery system including a housing, a sheath extending from within the housing, a clutching mechanism housed within the housing, and a cable. The clutching mechanism includes a one-way clutch that transmits a torque from an actuator to an inner shaft assembly when the actuator is rotated in a first direction and does not transmit a torque from the actuator to the inner shaft assembly when the actuator is rotated in a second opposing direction. The actuator is accessible from an exterior of the housing. The cable has a first end coupled to a proximal portion of the sheath and a second end coupled to the inner shaft assembly, and actuation of the actuator causes the actuator to rotate in the first direction, thereby causing the inner shaft assembly to wind up a portion of cable and retract the sheath. 1. A delivery system for delivering a prosthesis , the delivery system comprising:a housing;a sheath extending from within the housing;a clutching mechanism housed within the housing, the clutching mechanism including a one-way clutch that transmits a torque from an actuator to an inner shaft assembly when the actuator is rotated in a first direction and does not transmit a torque from the actuator to the inner shaft assembly when the actuator is rotated in a second opposing direction, wherein the actuator is accessible from an exterior of the housing; anda cable having a first end coupled to a proximal portion of the sheath and a second end coupled to the inner shaft assembly, wherein actuation of the actuator causes the actuator to rotate in the first direction, thereby causing the inner shaft assembly to wind up a portion of cable and retract the sheath.2. The delivery system of claim 1 , wherein release of the actuator causes the actuator to rotate in the second direction claim 1 , thereby causing the one-way clutch to freely spin over the inner shaft assembly.3. The delivery system of claim 1 , wherein the actuator ...

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Номер записи: 45
02-02-2017 дата публикации

STENT DELIVERY SYSTEM AND STENT DELIVERY METHOD

Номер: US20170027726A1
Автор: Oyama Kenji
Принадлежит: TERUMO KABUSHIKI KAISHA

A stent delivery system includes a tube body having a proximal portion latch section which comes into contact with a proximal end of a stent to restrict the movement of the stent in a proximal direction, a stent accommodation unit slidable in the proximal end direction of the tube body while covering a distal side of the tube body and the stent that is to be accommodated inside the stent accommodation unit, and a pulling wire for pulling the stent accommodation unit in the proximal end direction. The stent delivery system further includes an extension restraining wire whose one end portion is fixed to the tube body to restrain the tube body from extending in a distal end direction, a first pulling unit that moves the pulling wire in the proximal end direction, and a second pulling unit that moves the extension restraining wire in the proximal end direction. 1. A stent delivery system comprising:a tube body which has a guide wire lumen, a stent accommodation unit which is slidable in a proximal end direction of the tube body while covering a distal side of the tube body, a substantially cylindrical stent which is expandable radially outward using a self-expandable force by being accommodated inside the stent accommodation unit in a contracted state in a central axis direction and being released from the stent accommodation unit, a pulling shaft for pulling the stent accommodation unit to the tube body in the proximal end direction by one end portion being fixed to the stent accommodation unit and being moved in the proximal end direction, and a stent latch section for restricting a movement of the stent in the proximal end direction by coming into contact with a proximal end of the stent accommodated inside the stent accommodation unit disposed in the tube body;an extension restraining shaft having one end portion fixed to the tube body so as to restrain the tube body from extending in a distal end direction;a first pulling unit disposed in a proximal portion of the ...

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Номер записи: 46
04-02-2016 дата публикации

VALVE ASSEMBLY FOR CRIMP PROFILE

Номер: US20160030172A1
Автор: Braido Peter N., Buesseler Ryan, Coyle Daniel, Daly Jacob John, Johnson Mary, Schraut Julia A.
Принадлежит: St. Jude Medical, Cardiology Division, Inc.

A method of assembling a prosthetic heart valve includes providing a collapsible and expandable stent having an annulus section and an aortic section. The annulus section has a first diameter in a relaxed condition and a second diameter less than the first diameter in a collapsed condition. A constraint is applied to the stent to constrain the annulus section to a predetermined diameter between the first and second diameters. Applying a cuff and/or a plurality of leaflets to the stent in the constrained condition enables less material to be used. The resultant prosthetic valve is therefore able to be collapsed to a smaller diameter for introduction into a patient. 1. (canceled)2. A method of assembling a prosthetic heart valve , comprising:providing a collapsible and expandable stent having an annulus section, the annulus section having a first annulus diameter in a relaxed condition and a second annulus diameter less than the first annulus diameter in a collapsed condition;applying an annular constraint around a circumference of the stent to constrain the annulus section to a predetermined annulus diameter between the first annulus diameter and the second annulus diameter;assembling at least one of a cuff or a plurality of leaflets to the constrained annulus section to form a prosthetic heart valve; andremoving the constraint from the stent prior to implantation of the prosthetic heart valve within a native valve annulus.3. The method of claim 2 , wherein the stent further includes an aortic section having a first aortic diameter in the relaxed condition and a second aortic diameter less than the first aortic diameter in the collapsed condition claim 2 , and the step of applying the constraint constrains the aortic section to a predetermined aortic diameter between the first aortic diameter and the second aortic diameter.4. The method of claim 3 , wherein the constraint comprises a first suture tied to the annulus section of the stent to constrain the diameter of ...

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Номер записи: 47
01-02-2018 дата публикации

Apparatus and methods for delivery, repositioning, and retrieval of transcatheter prosthetic valves

Номер: US20180028314A1
Автор: Craig A. Ekvall, John F. Otte, Khoi Le, Robert M. 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 into a heart. In some embodiments, an apparatus includes a catheter assembly, a valve holding tube and a handle assembly. The valve holding tube is releasably couplable to a proximal end portion of the catheter assembly and to a distal end portion of the handle assembly. The handle assembly includes a housing and a delivery rod. The delivery rod is configured to be actuated to move distally relative to the housing to move a prosthetic heart valve disposed within the valve holding tube out of the valve holding tube and distally within a lumen of the elongate sheath of the catheter assembly. The catheter assembly is configured to be actuated to move proximally relative to the housing such that the prosthetic valve is disposed outside of the lumen of the elongate sheath.

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Номер записи: 48
02-02-2017 дата публикации

Expandable medical implant

Номер: US20170028518A1
Автор: Hou-Sen Lim, Wolfgang Goetz
Принадлежит: Venus Medtech Hangzhou Inc

A method for crimping a medical implant includes at least one foldable and/or unfoldable structure on or around or over a portion or outer surface of a catheter or of a catheter tip. No pressure beyond a predetermined pressure is exerted on the structure during and/or after crimping of the implant.

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Номер записи: 49
31-01-2019 дата публикации

HANDLE WITH DIRECT DRIVE MECHANISM

Номер: US20190029854A1
Автор: Calomeni Michael P., Gamarra Randy S., Ino Takashi H.
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A handle for a medical device system may include a hollow elongate handle housing, a first lead screw disposed within the hollow elongate handle housing, a deployment mechanism configured to actuate a medical implant positioned at a distal end of the medical device system, the deployment mechanism being operatively engaged with the first lead screw, and a control knob rotatably disposed around a proximal end of the hollow elongate handle housing. The first lead screw may be spaced apart from the control knob. Rotation of the control knob in a first direction may cause rotation of the first lead screw in the first direction. 1. A handle for a medical device system , comprising:a hollow elongate handle housing;a first lead screw disposed within the hollow elongate handle housing;a deployment mechanism configured to actuate a medical implant positioned at a distal end of the medical device system, the deployment mechanism being operatively engaged with the first lead screw; anda control knob rotatably disposed around a proximal end of the hollow elongate handle housing;wherein the first lead screw is spaced apart from the control knob;wherein rotation of the control knob in a first direction causes rotation of the first lead screw in the first direction.2. The handle of claim 1 , wherein one full rotation of the control knob produces more than one full rotation of the first lead screw.3. The handle of claim 1 , wherein the control knob includes a ring gear disposed along an inner surface of the control knob.4. The handle of claim 3 , wherein the ring gear is fixedly attached to the control knob.5. The handle of claim 3 , wherein the first lead screw includes a pinion gear at a proximal end of the first lead screw.6. The handle of claim 5 , wherein the pinion gear is directly engaged with the ring gear.7. The handle of claim 5 , wherein the pinion gear is fixedly attached to the proximal end of the first lead screw.8. The handle of claim 1 , wherein rotation of the ...

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Номер записи: 50
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: 51
11-02-2016 дата публикации

Endovascular graft having a cannulation pocket

Номер: US20160038319A1
Автор: Zoe Barrand
Принадлежит: Cook Medical Technologies LLC

A stent graft for placement in a lumen of a patient is disclosed. The stent graft comprises: a main tubular body of a biocompatible graft material having a main lumen, the main tubular body having a proximal end and a distal end; a side arm extending from the main tubular body, the side arm having a side arm lumen, the side arm lumen being in fluid communication with the main lumen through a side arm opening in the main tubular body; and a cannulation pocket. The pocket comprises: an exit aperture positioned opposite the side arm opening; an entry aperture longitudinally spaced from the entry aperture in a direction toward the distal end of the main tubular body; and a wall, the wall laterally spaced from the main lumen so as to provide a guide surface for a cannula fed through the entry aperture.

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Номер записи: 52
11-02-2016 дата публикации

Single Handed Deployment Handle

Номер: US20160038323A1
Автор: Cassidy Paul, III Robert, Murray
Принадлежит:

The present invention is directed to an improved delivery system to deliver and deploy a prosthesis in a body lumen, and methods of use thereof. The improved delivery system allows for operation of the delivery system with one hand while maintaining accuracy in delivery and deployment of the prosthesis. An exemplary embodiment of the delivery system includes a first sheath control on a housing so as to be accessible from the exterior of the housing, wherein the first sheath control is operatively engaged with the sheath and controls movement of the sheath axially proximally with respect to the housing, thereby releasing at least a portion of the prosthesis. 118-. (canceled)19: A delivery system for delivering a prosthesis to a location in a body , the delivery system comprising:a housing having a longitudinal axis, a proximal end, and a distal end;a sheath extending from within the housing;a sheath control accessible from the exterior of the housing, wherein the sheath control is operatively engaged with the sheath, and wherein a first actuation of the sheath control causes the sheath to move axially in a proximal direction with respect to the sheath control; anda stop control accessible from the exterior of the housing, wherein the stop control has an engaged position and a disengaged position, and wherein, when the stop control is in the disengaged position, the sheath can move axially to a full proximal position.20: The delivery system of claim 19 , wherein claim 19 , when the stop control is in the engaged position claim 19 , the sheath is prevented from moving axially to a full proximal position.211: The delivery system of claim claim 19 , wherein the sheath engagement control is disposed between a proximal end and a distal end of the housing.22: The delivery system of claim 19 , wherein the housing comprises a proximal slot extending longitudinally through a proximal portion of the housing claim 19 , and wherein a second sheath control is accessible and ...

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Номер записи: 53
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: 54
08-02-2018 дата публикации

EXTERNAL STEERABLE FIBER FOR USE IN ENDOLUMINAL DEPLOYMENT OF EXPANDABLE DEVICES

Номер: US20180036113A1
Автор: Burkart Dustin C., Norris Patrick M.
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 catheter assembly comprising:a catheter having a leading end and a trailing end and comprising a main lumen extending between the leading end and the trailing end;an expandable medical device positioned at the leading end of the catheter;steering lines configured to selectively bend the expandable medical device, the steering lines including portions arranged on opposing circumferential surfaces of the expandable medical device.2. The catheter assembly of claim 1 , wherein the steering across and remain substantially in contact with an exterior surface of the expandable medical device from a distal end to a proximal end of the expandable medical device.3. The catheter assembly of claim 2 , wherein the steering lines each include a helical pattern that begins near the distal end on an outer curve of expandable medical device and terminates proximal thereto on the inner curve of expandable medical device.4. The catheter assembly of claim 3 , wherein the steering lines each continue in a direction substantially parallel to a central axis of the expandable medical device and toward the proximal end on the inner curve of the expandable medical device where the steering lines circumferentially traverses expandable medical device back to the outer curve of the expandable medical device.5. The catheter assembly of ...

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Номер записи: 55
08-02-2018 дата публикации

Delivery systems for prosthetic heart valve

Номер: US20180036124A1
Автор: Christopher Chia, David J. Evans, Ronaldo C. Cayabyab, Sean Chow, Tamir S. Levi, Tri D. Tran
Принадлежит: Edwards Lifesciences Corp

A delivery apparatus for a prosthetic heart valve includes a shaft, an inner balloon, and an outer balloon. The shaft has a lumen extending from a proximal end portion to a distal end portion and a plurality of openings formed in the distal end portion. The shaft is configured such that a fluid can flow through the lumen and the openings. The inner balloon has end portions and a center portion disposed between the end portions. The inner balloon is mounted on the distal end portion of the shaft and is in fluid communication with the openings of the shaft. When the inner balloon is inflated with the fluid, the end portions expand farther radially outwardly than the center portion. The outer balloon is mounted to the shaft and disposed over the inner balloon. The outer balloon is configured to fully expand after the inner balloon at least partially expands.

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Номер записи: 56
24-02-2022 дата публикации

LOW PROFILE DELIVERY SYSTEM WITH LOCK WIRE LUMEN

Номер: US20220054290A1
Автор: Burkart Dustin C.
Принадлежит:

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods for medical device delivery. The apparatuses, systems, and methods may include at least one loop attached to a catheter shaft and extending through a medical device and a release line held in place by passing through the loop. 1. A medical device delivery system , the system comprising:a catheter shaft;at least one loop attached to the catheter shaft;a medical device having an interior and an exterior;at least one opening through the medical device configured to allow the loop to extend from the interior to the exterior of the medical device; anda release line exterior to the medical device held in place by passing through the loop.2. The system of claim 1 , wherein the at least one loop is flexible and includes at least two flexible loops aligned relative to a longitudinal axis of the medical device.3. The system of claim 1 , wherein the at least one flexible loop includes a fiber coupled to the catheter shaft.4. The system of claim 3 , wherein the fiber is at least one of wrapped claim 3 , glued claim 3 , and bonded to the catheter shaft to form the at least one flexible loop.5. The system of claim 1 , wherein the medical device is configured to collapse to a delivery configuration and the at least one flexible loop is configured to collapse toward the catheter shaft in response to the medical device being collapse to the delivery configuration.6. The system of claim 5 , further comprising at least one sheath configured to releasably hold the medical device in the delivery configuration.7. The system of claim 1 , wherein the medical device comprises a stent and graft combination and the at least one opening is formed through the graft claim 1 , and the at least one flexible loop comprises a graft material.8. The system of claim 1 , wherein the at least one flexible loop is configured to maintain at least a portion of the release line in contact with an exterior surface ...

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Номер записи: 57
07-02-2019 дата публикации

SYSTEMS AND METHODS FOR IMPLANTS AND DEPLOYMENT DEVICES

Номер: US20190038443A1
Автор: Bly Austin Michael, Jabba Ronald J., Mehta Shreya, Sicotte Marcel Song
Принадлежит:

Benign prosthetic hyperplasia (BPH) is a non-cancerous enlargement of the prostate gland. Treatment options for BPH include medication, surgery (e.g., removal of enlarged prostate tissue), and minimally invasive procedures (e.g., needle ablation, electrovaporization, thermotherapy, and stent insertion). Minimally invasive procedure is typically the preferred choice if medication is ineffective. Accordingly, disclosed herein are system and method for treating BPH using improved implant and delivery device. Certain embodiments of the delivery device can include: a camming barrel having a first groove at the distal end of the camming barrel; a sheath, located within a lumen of the camming barrel, for storing the implantable device; and a first cam follower coupled to the sheath. 1. An apparatus for delivering an implantable device , the apparatus comprising:a camming barrel having a first groove at the distal end of the camming barrel;a sheath, partially located within a lumen of the camming barrel, the sheath having a distal region for storing the implantable device; anda first cam follower coupled to the sheath, wherein the first cam follower is configured to travel within the first groove of the camming barrel and to rotate and translate the sheath, wherein translation of the sheath causes the sheath to retract into the camming barrel.2. The apparatus of claim 1 , further comprises:a sheath-driver body slidably located within the camming barrel, wherein the sheath-driver body is rigidly coupled to the sheath and to the first cam follower, wherein the sheath-driver body is configured to secure the sheath along the longitudinal axis of the camming barrel.3. The apparatus of claim 2 , wherein the sheath-driver body is sized to fit within the lumen of the camming barrel and to hold sheath-driver body along the longitudinal axis of the lumen.4. The apparatus of claim 2 , wherein the sheath-driver body comprises a cylindrical or spherical body.5. The apparatus of claim 2 ...

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Номер записи: 58
06-02-2020 дата публикации

Prosthetic Valve with Atrial Arms

Номер: US20200038181A1
Автор: HARARI Boaz, Hariton Ilia
Принадлежит:

A valve frame is shaped to define a plurality of atrial arms, and a tubular portion that defines a lumen along a longitudinal axis of the valve frame. Prosthetic leaflets within the lumen are coupled to the frame. An outer frame defines a ring and a plurality of ventricular legs coupled to the ring. The ring circumscribes the tubular portion, and is defined by a pattern of alternating peaks and troughs. The tubular portion defines a row of upstream cells, and a row of downstream cells that is tessellated with the row of upstream cells. Each of the atrial arms is attached to, and extends from, a respective connection site at which adjacent upstream cells are connected to each other. Other embodiments are also described. 2. The apparatus according to claim 1 , wherein the downstream row is tessellated with the upstream row such that each of the upstream-cell-connection sites is an upstream extremity of a respective downstream cell.3. The apparatus according to claim 1 , wherein a respective atrial arm of the plurality of atrial arms extends from every one of the upstream-cell-connection sites.4. The apparatus according to claim 1 , wherein each of the upstream cells is roughly diamond-shaped.5. The apparatus according to claim 4 , wherein each of the downstream cells is roughly diamond-shaped.6. The apparatus according to claim 1 , wherein each of the legs is coupled to the ring at a respective one of the troughs.7. The apparatus according to claim 1 , wherein the ring is a first ring claim 1 , and wherein the outer frame is shaped to further define a second ring circumscribing the tubular portion claim 1 , and defined by a pattern of alternating peaks and troughs claim 1 , each of the legs coupled to the first ring and to the second ring.8. The apparatus according to claim 7 , wherein the second ring is longitudinally closer than the first ring to the upstream end claim 7 , and wherein the outer frame is fixed to the tubular portion at a plurality of coupling points ...

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Номер записи: 59
18-02-2021 дата публикации

DEVICE FOR COLLECTION

Номер: US20210045902A1
Автор: FUKUMOTO Yoshihiro, NAM Kwangwoo, TANAKA Yasuomi, UMEDA Masahiro
Принадлежит:

Provided is a device for collection that can easily collect an object such as a stent from a lumen defined by a lumen wall. The device for collection includes an operation wire that is inserted movably forward and backward inside a catheter that is a hollow flexible tube and a snare wire provided at the tip of the operation wire. The snare wire is formed of one wire, which includes a first loop at the base end side, a second loop at the leading end side, and an intersection of the first loop with the second loop. The snare wire is double looped, in which the first loop and the second loop are approximately concentrically located adjacent to each other. The intersection is located at leading end side of the first loop. The operation wire, the first loop, and the second loop are located on an approximately same plain face. 2. The device for collection according to claim 1 , wherein the operation wire is rotated in the lumen to allow the first loop and then the second loop to rotate to form a three-dimensional shape claim 1 , and the first face having the first loop intersects with the second face having the second loop in the three-dimensional shape.3. The device for collection according to claim 1 , wherein the snare wire is formed of a wire made of a shape-memory alloy.4. The device for collection according to claim 1 , wherein the snare wire is formed from any one of a nickel-titanium alloy claim 1 , a stainless steel claim 1 , titanium claim 1 , and a titanium alloy.5. The device for collection according to claim 1 , wherein the diameter of the wire is from 0.1 to 0.7 mm.6. The device for collection according to claim 1 , wherein the each diameter of the first loop and the second loop that are formed in circles is from 10 to 70 mm.7. The device for collection according to claim 1 , wherein the operation wire is formed of at least a stranded wire that is produced by twisting multiple metallic wires.8. The device for collection according to claim 2 , wherein the ...

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Номер записи: 60
18-02-2016 дата публикации

SYSTEMS AND METHODS FOR COUPLING AND DECOUPLING A CATHETER

Номер: US20160045347A1
Автор: Serina Eugene R., Smouse Harry R., Stalker Kent C. B., Williams Timothy H.
Принадлежит:

A convertible nephroureteral catheter is used in the treatment of urinary system complications, particularly on the need for a single surgically delivered device to treat patients who must be seen by an interventional radiologist (IR). In many current procedures, patients need to return to the operating room to remove a previously delivered nephroureteral catheter to exchange this catheter with a fully implanted ureteral stent delivered though the same access site at the flank. The present convertible nephroureteral catheter reduces the need to return for a second surgical procedure. Two weeks after initial implantation, the proximal portion of the convertible nephroureteral catheter extending out from the body may simply be removed. A simple action at the catheter hub allows this proximal portion to be removed, leaving behind the implanted ureteral stent within the patient's urinary system. Other medical procedures, devices, and technologies may benefit from the described convertible catheter. 1. A stent delivery system comprising:a catheter body having an inner lumen and a proximal end and a distal end;a stent member having an inner lumen and a proximal end releasably coupled with the distal end of the catheter body;an inner member assembly disposed in the inner lumen of the catheter body and extending into the inner lumen of the stent member to concentrically align the catheter body and the stent member; anda tether extending through or along the catheter body and into the inner lumen of the stent member to form a loop over at least a portion of the inner member assembly thereby securing the stent member to the catheter body,wherein retraction of the inner member from the inner lumen of the stent member frees the inner member assembly from the loop such that the stent member is released from the stent body.2. The stent delivery system of claim 1 , wherein the inner member assembly comprises a locking pull wire claim 1 , the locking pull wire being threadable ...

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Номер записи: 61
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: 62
15-02-2018 дата публикации

SEALABLE ENDOVASCULAR IMPLANTS AND METHODS FOR THEIR USE

Номер: US20180042744A1
Автор: Cartledge John P., Cartledge Richard George
Принадлежит: Edwards Lifesciences CardiAQ LLC

A prosthetic implant includes a circumferentially adjustable sealing collar and a rotatable sealer gear. The sealing collar has a central longitudinal axis. The rotatable sealer gear is coupled to and disposed within the sealing collar and configured to adjust the circumference of the sealing collar. The sealer gear is radially offset relative to the central longitudinal axis of the sealing collar. Rotating the sealer gear in a first direction relative to the sealing collar circumferentially expands the sealing collar. Rotating the sealer gear in a second direction relative to the sealing collar circumferentially contracts the sealing collar. 1. A prosthetic implant , comprising:a circumferentially adjustable sealing collar having a central longitudinal axis; anda rotatable sealer gear coupled to and disposed within the sealing collar and configured to adjust the circumference of the sealing collar, wherein the sealer gear is radially offset relative to the central longitudinal axis of the sealing collar,wherein rotating the sealer gear in a first direction relative to the sealing collar circumferentially expands the sealing collar, andwherein rotating the sealer gear in a second direction relative to the sealing collar circumferentially contracts the sealing collar.2. The prosthetic implant of claim 1 , wherein the sealing collar has a fixed end portion and a movable end portion claim 1 , and wherein circumferentially expanding and circumferentially contracting the sealing collar includes moving the movable end portion of the sealing collar relative to the fixed end portion of the sealing collar.3. The prosthetic implant of claim 1 , wherein the sealing collar has a plurality of slots claim 1 , and wherein the sealer gear has a plurality of teeth configured to engage the slots of the sealing collar.4. The prosthetic implant of claim 1 , further comprising a tubular implant body to which the sealing collar is coupled.5. The prosthetic implant of claim 1 , further ...

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Номер записи: 63
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: 64
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: 65
19-02-2015 дата публикации

WIRE COLLECTION DEVICE WITH GEARED ADVANTAGE

Номер: US20150051688A1
Автор: Cummins Sean
Принадлежит:

A stent delivery system includes a wire collection device which is constructed with a thumbwheel coupled to a collection spindle that is rotatable to collect a retraction wire about the collection spindle. A proximal end of an outer stent-constraining sheath is coupled to the collection spindle by the retraction wire and a distal end of the outer sheath retractably surrounds a distally-disposed self-expanding stent. The wire collection device includes a first set of gears at a higher gear ratio and a second set of gears at a lower gear ratio. Stent deployment speed may be controlled or varied by switching or alternating between engaging the first of gears and the second set of gears, thereby accommodating changing resistance as the outer sheath is retracted and releases binding force of the stent. 1. A stent deployment system , including a wire collection device comprising:a collection spindle rotatable to collect a retraction wire around the collection spindle, the retraction wire coupled to an outer sheath retractable to deploy a stent;a first driven gear and a second driven gear mounted along the collection spindle, a radius of the second driven gear being greater than a radius of the first driven gear;a thumbwheel mounted on a wheel axle substantially parallel to the collection spindle, the thumbwheel rotatable and disposed in mechanical communication with the wheel axle to actuate rotation of the wheel axle;a first actuating gear and a second actuating gear, the first actuating gear sized to engage the first driven gear to collect the retraction wire at a first speed and the second actuating gear sized to engage the second driven gear to collect the retraction wire at a second speed greater than the first speed.2. The system of claim 1 , wherein a higher gear ratio of the second driven gear relative to the second actuating gear is greater than a lower gear ratio of the first drive gear relative to the first actuating gear claim 1 , thereby providing a ...

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Номер записи: 66
13-02-2020 дата публикации

IMPLANT DELIVERY APPARATUS

Номер: US20200046406A1
Автор: GUI Baozhu, HE Zhixiu, Li Yu
Принадлежит:

An implant delivery device () includes a casing (); and inner and outer tube driving members (), an inner tube (), an intermediate tube (), an outer tube () and an air-evacuation locking assembly (), each at least partially accommodated in the casing (). The three tubes are sequentially nested in one another, and first, second and third spaces are formed between neighbouring tubes. The inner tube driving member () has a proximal end that is sealingly fixed to a proximal end of the inner tube (), and the outer tube driving member () is sealingly fixed to a proximal end of the outer tube (). The intermediate tube () has a proximal end that is sealingly fixed to the inner tube driving member (), and the intermediate tube extends through and is sealingly connected to the outer tube driving member (). The air-evacuation locking assembly () is detachably coupled to the inner tube driving member (). The inner tube driving member () and the air-evacuation locking assembly () are provided with first and second air-evacuation channels (A, B), respectively. When the air-evacuation locking assembly () is coupled to the inner tube driving member (), the second air-evacuation channel (B) is brought into communication with the second and third spaces via the first air-evacuation channel (A) and the first space. The inner tube driving member () is coupled to the casing () by the air-evacuation locking assembly (). When the air-evacuation locking assembly () is disconnected from the inner tube driving member (), the inner tube driving member () remains in slidable connection with the casing (). 1. An implant delivery device , comprising:a casing; andan inner tube driving member, an outer tube driving member, an inner tube, an intermediate tube, an outer tube and an air-evacuation locking assembly, each at least partially accommodated in the casing;the inner tube, the intermediate tube and the outer tube are sequentially nested from inside to outside, the inner tube and the ...

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Номер записи: 67
13-02-2020 дата публикации

PROSTHETIC VALVE WITH SEPARABLY-DEPLOYABLE VALVE BODY AND TISSUE ANCHORS

Номер: US20200046497A1
Автор: HARARI Boaz, Hariton Ilia
Принадлежит: CARDIOVALVE LTD.

Prosthetic valves and methods of use of prosthetic valves may be provided. In one implementation, a method of implanting a prosthetic valve within a native heart valve may be provided. The method may include delivering the prosthetic valve into a heart chamber while the prosthetic valve is constrained in a radially-contracted delivery configuration. The method may also include unconstraining ventricular tissue anchors and atrial tissue anchors of the prosthetic valve while maintaining an annular valve body of the prosthetic valve in the delivery configuration. The method may also include unconstraining the annular valve body from the delivery configuration while the unconstrained atrial tissue anchors and ventricular tissue anchors are positioned within an atrium and a ventricle, respectively. Unconstraining the annular valve body may decrease a longitudinal distance between the ventricular tissue anchors and atrial tissue anchors to secure the prosthetic valve within the native heart valve. 172-. (canceled)73. A method of implanting a prosthetic valve within a native heart valve , the method comprising: an annular valve body,', 'a plurality of ventricular tissue anchors configured to extend from the annular valve body, and', 'a plurality of atrial tissue anchors configured to extend from the annular valve body;, 'delivering the prosthetic valve into a heart chamber while the prosthetic valve is constrained in a radially-contracted delivery configuration, wherein the prosthetic valve comprisesunconstraining the ventricular tissue anchors and the atrial tissue anchors within the heart while maintaining the annular valve body in the radially-contracted delivery configuration; andwhile the unconstrained ventricular tissue anchors are positioned downstream of the native heart valve and while the unconstrained atrial tissue anchors are positioned upstream of the native heart valve, unconstraining the annular valve body such that the annular valve body radially expands ...

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Номер записи: 68
13-02-2020 дата публикации

IMPLANT DELIVERY DEVICE ADAPTED TO BE ATTACHED TO OR INTERCONNECTED WITH A CATHETER, CATHETER AND METHOD

Номер: US20200046530A1
Автор: Goetz Wolfgang, Lim Hou-Sen
Принадлежит: VENUS MEDTECH (HANGZHOU), INC.

The present invention relates to a device () intended to be attached to or interconnected with a medical implant (), and intended to be attached to or interconnected with a catheter (), the catheter () being intended for implanting the implant (). The invention further relates to a catheter () suited for receiving at least one such device () and to a method. 112-. (canceled)13. An interventional heart valve delivery assembly , comprising:a tube having a first lumen, and having opposite proximal and distal ends;a cylindrical implant releasably attached around the tube and having opposite proximal and distal ends, wherein the tube extends through a central portion of the implant, with the distal end of the tube extending to the distal end of the implant; anda catheter detachably connectable to the proximal end of the tube via a tight or firm connection;wherein the catheter has a second lumen in communication with the first lumen of the tube when the catheter is connected to the tube.14. The interventional heart valve delivery assembly according to claim 13 , wherein the proximal end and the distal end of the tube extend beyond the proximal end and the distal end claim 13 , respectively claim 13 , of the implant.15. The interventional heart valve delivery assembly according to claim 13 , wherein the implant has a stent entirely located outside the first lumen of the tube.16. The interventional heart valve delivery assembly according to claim 15 , wherein the stent of the implant is entirely located outside the second lumen of the catheter.17. The interventional heart valve delivery assembly according to claim 13 , wherein the distal end of the tube with its first lumen extends beyond the distal end of the implant.18. The interventional heart valve delivery assembly according to claim 13 , wherein the implant is foldable and/or unfoldable claim 13 , and comprises a first folding and/or unfolding means for folding and/or unfolding the implant claim 13 , and the first ...

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Номер записи: 69
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: 70
22-02-2018 дата публикации

System to Deliver a Bodily Implant

Номер: US20180049899A1
Автор: Daniel Dietrich, Martin Wübbeling
Принадлежит: CR Bard Inc

A catheter system with a proximal end and a distal end means at the proximal end to actuate a device at the distal end of the system, and an actuator element that runs the length of the system, from the actuator means to the device and actuates the device by transmitting a physical force from the proximal end to the distal end and characterized by a pre-tensioner near the distal end of the system, that can be set in a pre-tensioning disposition prior to actuation of the device, the pre-tensioner thereby reducing the magnitude of the said physical force that must be transmitted from the proximal end when actuation of the device is required.

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Номер записи: 71
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: 72
10-03-2022 дата публикации

HEART VALVE SEALING DEVICES, DELIVERY DEVICES THEREFOR, AND RETRIEVAL DEVICES

Номер: US20220071767A1
Автор: Dixon Eric Robert, Freschauf Lauren R., Gohres Rachel Ann, II Gregory Scott, Kwon Rhayoung, Metchik Asher L., Montoya Daniel James, Nguyen Tam Van, Stearns Grant Matthew, Tyler
Принадлежит:

A method and system for implanting and repositioning an implantable device for a native valve of a patient's heart includes a delivery catheter, a collar, a coupler, and an actuation element. The actuation element extends through the delivery catheter and attaches to the device to open the device. The collar is connected to the device and the coupler is connected to the delivery catheter. The collar and coupler are tied together via one or more coupling tethers which can be used to reengage the device after an initial deployment. 1. A system comprising:an implantable device having a pair of anchors that are movable between an open position and a closed position to secure the implantable device to a native valve;a delivery catheter;a coupler disposed at a distal end of the delivery catheter;a collar attached to the device;an actuation element which extends through the delivery catheter and into the device; andwherein the coupler and the collar are tied by a coupling tether which can recouple the device to the coupler after the actuation element has been removed from the device.2. The system of wherein the coupling tether is looped around the actuation element.3. The system of wherein the coupling tether extends from the coupler through the collar and extends back through the collar into the coupler.4. The system of wherein a first passage for the coupling tether in the delivery catheter is offset by about 180 degrees from a second passage for the coupling tether in the delivery catheter.5. The system of wherein the coupling tether extends from an end of the coupler.6. The system of further comprising a compressible sleeve around the coupling tether between the coupler and the collar.7. The system of further comprising a telescoping actuator coupled to the pair of anchors.8. A system comprising:an implantable device having at least one clasp;a delivery catheter;a clasp actuation line having two portions that both extend from the delivery catheter and that both pass ...

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Номер записи: 73
10-03-2022 дата публикации

ARTICULATED COMMISSURE VALVE STENTS AND METHODS

Номер: US20220071784A1
Автор: White Jennifer K.
Принадлежит: Edwards Lifesciences CardiAQ LLC

A frame for a prosthetic valve includes pivoting struts and outer bow struts. A first end of each pivoting strut is pivotably coupled to a first pivoting strut, a second end of each pivoting strut is pivotably coupled to a second pivoting strut, and an intermediate portion of each pivoting strut, which is disposed between the first end and the second end, is pivotably coupled to a third pivoting strut. The outer bow struts are disposed outwardly from the pivoting struts. An inflow end of each outer bow strut is connected to the first end of a respective pivoting strut, and an outflow end of each outer bow strut is connected to the second end of a respective pivoting strut. The outer bow struts deflect outwardly relative to the intermediate portions of the pivoting struts when the frame is moved from a radially compressed configuration to a radially expanded configuration. 1. A prosthetic heart valve comprising:{'claim-text': ['a plurality of pivoting struts, wherein a first end portion of each pivoting strut of the plurality of pivoting struts is pivotably coupled to a first pivoting strut of the plurality of pivoting struts, wherein a second end portion of each pivoting strut of the plurality of pivoting struts is pivotably coupled to a second pivoting strut of the plurality of pivoting struts, and wherein an intermediate portion of each pivoting strut of the plurality of pivoting struts, which is disposed between the first end portion and the second end portion, is pivotably coupled to a third pivoting strut of the plurality of pivoting struts; and', 'a plurality of outer bow struts disposed radially outwardly from the plurality of pivoting struts, wherein an inflow end portion of each outer bow strut of the plurality of outer bow struts is connected to the first end portion of a respective pivoting strut of the plurality of pivoting struts, wherein an outflow end portion of each outer bow strut of the plurality of outer bow struts is connected to the second end ...

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Номер записи: 74
01-03-2018 дата публикации

Stent graft with fixing elements and insertion system

Номер: US20180055663A1
Автор: Christian Woerne, Franz-Peter Barthold, Marcos Centola
Принадлежит: JOTEC GMBH

The present invention relates to a stent graft and to an insertion system for the stent graft according to the invention. The stent graft comprises a stent graft portion with a self-expanding stent having successive rings of meandering supports and a first prosthesis material secured on the rings. On at least one of its rings, the stent graft portion has two loop-shaped fixing elements which are attached via a common fixing area and which are attached to the supports of the rings in such a way that, due to the fact that they are guided in opposite directions around the hollow cylindrical body, the latter is compressible. Furthermore, the insertion system according to the invention also has a pin element with which the loop-shaped fixing elements can be threaded on.

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Номер записи: 75
02-03-2017 дата публикации

MODULAR HANDLE FOR A PROSTHESIS DELIVERY DEVICE

Номер: US20170056219A1
Автор: Baxter Charles L., Bradway Ryan C.
Принадлежит: Cook Medical Technologies LLC

A modular handle assembly for a prosthesis delivery device is disclosed. The modular handle assembly comprises a stationary main handle having a proximal end and a distal end. A first handle extends proximally from the main handle and is rotationally moveable relative to the main handle, the first handle having a proximal end and a distal end and wherein a rotational interface is located at the distal end. A second handle extends distally from the main handle and is rotationally moveable relative to the main handle, the second handle having a proximal end and a distal end and wherein a rotational interface is located at the proximal end. The proximal end of the main handle comprises a first rotational interface that is configured to engage with a rotational interface at the distal end of the first handle and wherein the distal end of the main handle comprises a second rotational interface that is configured to engage with the rotational interface at the proximal end of the second handle. 1. A modular handle assembly for a prosthesis delivery device comprising:a stationary main handle having a proximal end and a distal end;a first handle extending proximally from the main handle and rotationally moveable relative to the main handle, the first handle having a proximal end and a distal end and wherein a rotational interface is located at the distal end;a second handle extending distally from the main handle and rotationally moveable relative to the main handle, the second handle having a proximal end and a distal end and wherein a rotational interface is located at the proximal end;wherein the proximal end of the main handle comprises a first rotational interface that is configured to engage with a rotational interface at the distal end of the first handle and wherein the distal end of the main handle comprises a second rotational interface that is configured to engage with the rotational interface at the proximal end of the second handle.2. The handle assembly of ...

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Номер записи: 76
02-03-2017 дата публикации

PROSTHESIS FIXATION SYSTEM AND METHOD

Номер: US20170056224A1
Автор: Baxter Charles L., Bradway Ryan C.
Принадлежит: Cook Medical Technologies LLC

A prosthesis fixation system includes a delivery device having a distal end and a proximal end. The delivery device includes an inner cannula extending between the distal end and the proximal end of the delivery device, a positioner disposed coaxially over a first portion of the inner cannula, and a tip assembly attached to a proximal end of the inner cannula. A prosthesis is releasably coupled to the delivery device at the proximal end of the delivery device. At least one trigger wire extends longitudinally within a lumen of the positioner and at least one suture loop is attached to the proximal end of the positioner. A proximal end of the trigger wire extends proximally beyond the proximal end of the positioner such that trigger wire passes through the at least one suture loop and is removably attached to an end of the prosthesis. 1. A prosthesis fixation system comprising:a delivery device having a distal end and a proximal end, the delivery device comprising an inner cannula extending between the distal end and the proximal end of the delivery device, a positioner disposed coaxially over a first portion of the inner cannula, and a tip assembly attached to a proximal end of the inner cannula;a prosthesis releasably coupled to the delivery device at the proximal end of the delivery device;at least one trigger wire extending longitudinally within a lumen of the positioner; andat least one suture loop attached to the proximal end of the positioner,wherein a proximal end of the at least one trigger wire extends proximally beyond the proximal end of the positioner such that the at least one trigger wire passes through the at least one suture loop and is removably attached to an end of the prosthesis for releasably coupling the end of the prosthesis to the delivery device.2. The system of claim 1 , wherein the at least one trigger wire comprises three trigger wires and the at least one suture loop comprises three suture loops claim 1 , the trigger wires being removably ...

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Номер записи: 77
02-03-2017 дата публикации

SPLIT SHEATH PROSTHESIS DEPLOYMENT SYSTEM WITH DIVIDED TIP

Номер: US20170056225A1
Автор: Baxter Charles L., Bradway Ryan C.
Принадлежит: Cook Medical Technologies LLC

A prosthesis delivery device includes an inner cannula, a positioner disposed coaxially over a first portion of the inner cannula, a concentric cannula disposed coaxially over a second portion of the inner cannula, and a tip assembly disposed over a third portion of the inner cannula. A distal end of the concentric cannula is attached to a proximal end of the positioner. The tip assembly comprises a distal tip segment and a proximal tip segment, with the distal tip segment attached to a proximal end of the concentric cannula and the proximal tip segment attached to a proximal end of the inner cannula. A prosthesis is carried on the concentric cannula and a sheath is mounted coaxially over the prosthesis. The sheath comprises a split defining a proximal sheath segment and a distal sheath segment. A proximal end of the proximal sheath segment is attached to the proximal tip segment. 1. A system for the delivery and deployment of a prosthesis comprising: an inner cannula extending between the distal end and the proximal end of the delivery device,', 'a positioner disposed coaxially over a first portion of the inner cannula,', 'a concentric cannula disposed coaxially over a second portion of the inner cannula, a distal end of the concentric cannula being attached to a proximal end of the positioner, and', 'a tip assembly disposed over a third portion of the inner cannula, the tip assembly comprising a distal tip segment and a separate proximal tip segment disposed proximally of the distal tip segment, the distal tip segment being attached to a proximal end of the concentric cannula, the proximal tip segment being attached to a proximal end of the inner cannula;, 'a delivery device having a distal end and a proximal end, the delivery device comprising'}a prosthesis carried on the concentric cannula at the proximal end of the delivery device; anda sheath mounted coaxially over the prosthesis, the sheath comprising a split defining a proximal sheath segment disposed ...

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Номер записи: 78
20-02-2020 дата публикации

PROSTHETIC VALVE DELIVERY SYSTEM WITH INDEPENDENTLY-MOVABLE CAPSULE PORTIONS

Номер: US20200054451A1
Автор: HARARI Boaz, Hariton Ilia
Принадлежит: CARDIOVALVE LTD.

Prosthetic valves and methods of use of prosthetic valves may be provided. In one implementation, a method of releasing a prosthetic valve from a delivery capsule within a heart may be provided. The delivery capsule may include a distal capsule portion and a proximal capsule portion. The method may include moving the distal capsule portion in a first direction to release ventricular anchoring legs of the prosthetic valve from the delivery capsule and moving the released legs into contact with a native mitral valve. The method may include moving the proximal capsule portion in a second direction to release atrial anchoring arms of the prosthetic valve from the delivery capsule, after contacting the mitral valve with the released legs. The method may include moving the distal capsule portion in the first direction to release an annular valve body of the prosthetic valve from the delivery capsule. 172-. (canceled)73. A method of releasing a prosthetic valve from a delivery capsule within a heart , wherein the prosthetic valve is configured for deployment within a native mitral valve , the method comprising:advancing the delivery capsule with the prosthetic valve retained within the delivery capsule into the heart, wherein the delivery capsule comprises a distal capsule portion and a proximal capsule portion;moving the distal capsule portion a first distance in the heart in a first direction relative to the prosthetic valve to release ventricular anchoring legs of the prosthetic valve from the delivery capsule;moving the released ventricular anchoring legs into contact with the native mitral valve;after contacting the native mitral valve with the released ventricular anchoring legs, moving the proximal capsule portion a second distance in the heart in a second direction relative to the prosthetic valve, the second direction being opposite of the first direction, to release atrial anchoring arms of the prosthetic valve from the delivery capsule; andmoving the distal ...

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Номер записи: 79
20-02-2020 дата публикации

DEPLOYMENT HANDLE WITH STABILIZING RAIL FOR A PRE-LOADED PROSTHESIS DELIVERY DEVICE

Номер: US20200054468A1
Автор: Bro Kristoffer Vandborg
Принадлежит: Cook Medical Technologies LLC

A handle assembly for a prosthesis delivery device is disclosed. The handle assembly has a proximal gripping portion and a stationary gripping portion. At least one rail extends distally from the proximal gripping portion through the stationary gripping portion. The proximal gripping portion is distally moveable along a longitudinal axis towards the stationary gripping portion from a first pre-deployment position to a second position. The at least one rail extends proximally from the stationary gripping portion when the proximal gripping portion is in a first pre-deployment position and distally from the stationary gripping portion when the proximal gripping portion is in a second position. The at least one rail is configured to prevent the build-up of torque along the length of the delivery device as well as prevent the build-up of torque among the various components of the handle assembly including the proximal gripping portion and the stationary gripping portion. 1. A handle assembly for a prosthesis delivery device , the handle assembly comprising:a proximal gripping portion,a stationary gripping portion,at least one rail extending distally from the proximal gripping portion,wherein the at least one rail extends through at least a portion of the stationary gripping portion,wherein the proximal gripping portion is distally moveable along a longitudinal axis towards the stationary gripping portion from a first pre-deployment position to a second position,wherein the at least one rail extends proximally from the stationary gripping portion when the proximal gripping portion is in a first pre-deployment position, andwherein the at least one rail extends distally from the stationary gripping portion when the proximal gripping portion is in a second position.2. The handle assembly of claim 1 , wherein the proximal gripping portion is adjacent to the stationary gripping portion when the proximal gripping portion is in the second position.3. The handle assembly of claim ...

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Номер записи: 80
28-02-2019 дата публикации

GEAR DRIVE MECHANISM FOR HEART VALVE DELIVERY APPARATUS

Номер: US20190060057A1
Автор: Cohen Oren, Neumann Yair A., Witzman Ofir
Принадлежит:

A prosthetic valve delivery apparatus can comprise a handle, a gearbox, an input torque shaft and a plurality of output torque shafts. The input torque shaft can extend distally from the handle and can have a distal end portion operatively connected to the gearbox. The output torque shafts can be operatively connected to and extend distally from the gearbox. Rotation of the input torque shaft can cause rotation of the output torque shafts via the gear box. 1. A prosthetic valve delivery apparatus , comprising:a handlea gearbox;an input torque shaft extending distally from the handle and having a distal end portion operatively connected to the gearbox; anda plurality of output torque shafts operatively connected to and extending distally from the gearbox, wherein rotation of the input torque shaft causes rotation of the output torque shafts via the gear box.2. The prosthetic valve delivery apparatus of claim 1 , further comprising a motor disposed in the handle claim 1 , the motor being operatively connected to a proximal end portion of the input torque shaft claim 1 , wherein actuation of the motor results in rotation of the input torque shaft.3. The prosthetic valve delivery apparatus of claim 1 , wherein the gearbox comprises:a drive gear operatively connected to and driven by the input torque shaft;a plurality of driven gears configured to be driven by the drive gear, wherein each driven gear is operatively connected to and rotates one of the output torque shafts.4. The prosthetic valve delivery apparatus of claim 3 , wherein the drive gear comprises an internal gear and the driven gears comprise pinion gears positioned inside of the internal gear.5. The prosthetic valve delivery apparatus of claim 3 , wherein the drive gear is mounted on the distal end portion of the input torque shaft and each driven gear is mounted on one of the output torque shafts.6. The prosthetic valve delivery apparatus of claim 3 , wherein the drive gear has teeth that mesh with teeth of ...

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Номер записи: 81
28-02-2019 дата публикации

ACTIVE INTRODUCER SHEATH SYSTEM

Номер: US20190060069A1
Автор: Maimon David, Tayeb Liron
Принадлежит:

The active introducer sheath systems disclosed herein are expanded by activating a translation mechanism at the handle. The sheath has an inner cylindrical structure of comingled fixed and mobile elongate rods bound together by an attachment line. Activating the translation mechanism causes the mobile rods to move axially with respect to the fixed rods, changing the internal tension in the attachment line. Increased tension draws the fixed and mobile rods closer together, decreasing the diameter of the cylindrical structure. Decreased tension in the attachment line enables the fixed and mobile rods to move apart, increasing the diameter of the cylindrical structure. A prosthetic device, such as a prosthetic heart valve, can be routed through the expanded sheath and to the implantation site. During implantation, the sheath can be contracted back to its original outer diameter, and expanded again for retrieval of the delivery apparatus. 1. An active introducer sheath system comprising;a handle comprising a translation mechanism, a set of elongate fixed rods arranged cylindrically, wherein each fixed rod comprises a proximal portion that is fixedly attached to the handle, and', 'a set of elongate mobile rods arranged cylindrically and comingled with the set of fixed rods, wherein each mobile rod comprises a proximal portion that is attached to the translation mechanism, such that activation of the translation mechanism causes the set of mobile rods to move axially with respect to the fixed rods; and,', 'one or more attachment lines connecting the comingled fixed and mobile rods;, 'a sheath comprising an inner cylindrical structure, wherein the inner cylindrical structure comprises;'}wherein movement of the set of elongate mobile rods with respect to the set of elongate fixed rods alters the internal tension of the attachment line, shifting the radial location of each fixed rod and each mobile rod, thereby changing the diameter of the inner cylindrical structure from a ...

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Номер записи: 82
28-02-2019 дата публикации

Pull wire and spool for vascular intervention device delivery system

Номер: US20190060095A1
Автор: Darach McGrath, Sean Cummins
Принадлежит: Cook Medical Technologies LLC

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface and a spool. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. The pull terminates at a proximal end with an integral anchor that extends through an opening in a wall that separates an inner surface of spool from a collection surface. The retractable sheath moves responsive to rotation of the thumbwheel in a first direction.

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Номер записи: 83
17-03-2022 дата публикации

STENT DELIVERY COMPONENT, STENT DELIVERY SYSTEM AND STENT SYSTEM

Номер: US20220079788A1
Автор: LU Yiran
Принадлежит:

The present disclosure relates to a stent delivery component, a stent delivery system and a stent system. In particular, a stent delivery component including a base and at least two clamping wings which are rotatably connected with the base, respectively, is provided. In one aspect, the stent delivery component can effectively enclose the stent to complete delivery. In another aspect, the stent delivery component is kept in line contact with an inner wall of a delivery catheter to reduce the contact area, thereby reducing the frictional resistance and being beneficial to reduce the operation difficulty and increasing the delivery efficiency. 2. The stent delivery component of claim 1 , wherein the rotatable connection is any one or a combination of hinge connection claim 1 , bearing connection claim 1 , pin shaft connection and flexible bending connection.3. The stent delivery component of claim 1 , wherein the enclosing section has a regular prism shape.4. The stent delivery component of claim 3 ,wherein the enclosing section has the regular quadrangular prism shape; andwherein the number of the clamping wings is two; the two clamping wings are concave plate structures.5. The stent delivery component of claim 4 , wherein the internal space of the enclosing section is in a cylindrical or prismatic shape claim 4 , or in a prismatic space which corresponds to the prismatic shape.6. The stent delivery component of claim 1 , wherein the stent delivery component comprises a polymer material and/or metal material.7. The stent delivery component of claim 6 , wherein the polymer material is selected from a nylon material claim 6 , a PTEE material claim 6 , a Pebax material claim 6 , a TPU material claim 6 , a PET material claim 6 , a PE material claim 6 , a PVC material claim 6 , a PC material claim 6 , a POM material claim 6 , an organic silicon resin material claim 6 , an ABS material claim 6 , a PEEK material and a PU material; andwherein the metal material is selected ...

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Номер записи: 84
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: 85
27-02-2020 дата публикации

MEDICAL IMPLANT DEPLOYMENT TOOL

Номер: US20200060817A1
Автор: Argento Claudio, Haug Ulrich R., Hildebrand Daniel, Morejohn Dwight, SALAHIEH Amr, SAUL Tom
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

A medical implant deployment tool and deployment method are disclosed. One aspect of the invention provides an implant system including an implant adapted for endovascular delivery and deployment; and a deployment tool adapted to deploy the implant, with the deployment tool having an actuation controller; a plurality of actuation elements adapted to apply forces to one or more implant deployment mechanisms and each adapted to extend along an actuation element path within a patient's vasculature; and an actuation element compensation mechanism adapted to compensate for differences in length between the actuation element paths. 1. A medical implant system configured to deliver a medical implant , the medical implant system comprising:an outer sheath having a distal end, a proximal end, and an outer sheath lumen therebetween;a tool body having a distal end, a proximal end, and a tool body lumen therebetween, wherein the tool body is slideably disposed within the outer sheath lumen;an actuation controller attached to the proximal end of the tool body;three or more actuators independently moveable relative to the actuation controller, each actuator having attached thereto an elongate actuation element further comprising a unlocking actuation element moveable relative to the elongate activation element and a hook end having a first closed configuration and a second open configuration,wherein the first closed configuration of the hook end is configured to engage, retain, and release a loop of a medical implant and the second open configuration of the hook end is configured not to retain the loop of the medical implant.2. The medical implant system of claim 1 , wherein the outer sheath has an axial length less than an axial length of the tool body.3. The medical implant system of claim 1 , wherein the outer sheath has an axial length greater than an axial length of the medical implant that the medical implant system is configured to deliver.4. The medical implant system of ...

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Номер записи: 86
27-02-2020 дата публикации

SYSTEMS AND METHODS FOR POSITIONING MEDICAL DEVICES RELATIVE TO HEART VALVE ANATOMY

Номер: US20200060820A1
Автор: BEN-ZVI Yonatan, Weiss Noam, YARON Ira
Принадлежит:

Example systems and methods for positioning a medical device relative to a tricuspid valve and a mitral valve are disclosed. Example methods comprise selecting the desired positioning and performing predefined steps involving turning the control knob of a steerable introducer in a predetermined direction and/or rotating the flexible tubular catheter of the steerable introducer around its longitudinal axis in a predetermined direction. Example methods also comprise selecting the desired positioning and performing predefined steps involving turning the control knob of a steerable introducer in a predetermined direction by a predetermined amount and/or rotating the flexible tubular catheter of the steerable introducer around its longitudinal axis in a predetermined direction by a predetermined amount. Example methods include following a road map of steps to a desired position relative to a tricuspid valve or a mitral valve. 1. A method for positioning a medical device relative to heart valve anatomy of a patient , comprising the steps of:inserting a steerable introducer into the patient, the steerable introducer comprising (a) a flexible tubular catheter comprising a longitudinal axis and distal tip and (b) a control knob for bending and straightening the distal tip;inserting a medical device through the steerable introducer;moving the distal tip of the flexible tubular catheter into approximately a center of the right atrium of the heart of the patient;adjusting the distal tip of the flexible tubular catheter to face the tricuspid valve of the patient between the right atrium and the right ventricle; andoperating the steerable introducer to move the distal tip toward a desired valve area in a manner selected from the group of: (i) to move the distal tip toward an area of the tricuspid valve commissure between the anterior leaflet and the posterior leaflet of the tricuspid valve, rotating the flexible tubular catheter around its longitudinal axis in a counterclockwise ...

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Номер записи: 87
27-02-2020 дата публикации

LOW PROFILE DELIVERY SYSTEM FOR TRANSCATHETER HEART VALVE

Номер: US20200060822A1
Автор: Bowes Robert, Cayabyab Ronaldo C., Le Thanh Huy, Lee Walter, Nguyen Tram Ngoc, Taylor David M., Tran Tri D., Vidal Antonio O.
Принадлежит:

A method of delivery a prosthetic heart valve includes inserting a delivery apparatus and a prosthetic heart valve into a patient's vasculature. The delivery apparatus includes a steerable guide catheter, a balloon catheter, and a flex indicator. The balloon catheter extends coaxially through the guide catheter, the prosthetic heart valve is mounted on a distal end portion of the balloon catheter, and the flex indicator is movably coupled to a handle of the guide catheter. The method further includes adjusting flexion of a steerable section of the guide catheter to position the prosthetic heart valve. The flex indicator moves relative to the handle of the guide catheter as the flexion of the steerable section is adjusted, and the handle comprises one or more visual indicators adjacent the flex indicator to provide visual indication of an amount of flexion of the steerable section of the guide catheter. 1. A delivery apparatus , comprising:a handle;a first shaft extending distally from the handle;an inflatable balloon disposed on a distal end portion of the first shaft;a second shaft extending distally from the handle over at least a portion of the first shaft; andthe second shaft comprising an expandable distal end portion extending over a portion of the balloon;wherein the distal end portion of the second shaft is configured to expand radially when the balloon is inflated from an uninflated state to an inflated state.2. The delivery apparatus of claim 1 , wherein the distal end portion of the second shaft comprises a plurality of longitudinally extending slots defining a plurality of circumferentially spaced deflectable sections that can deflect radially outwardly from one another when the balloon is inflated.3. The delivery apparatus of claim 2 , wherein the plurality of deflectable sections comprise a plurality of metal sections.4. The delivery apparatus of claim 3 , wherein the distal end portion of the second shaft further comprises a further material layer ...

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Номер записи: 88
27-02-2020 дата публикации

CATHETER DELIVERY SYSTEM FOR STENT VALVE

Номер: US20200060823A1
Автор: DELALOYE Stéphane, ESSINGER JACQUES, HEFTI JEAN-LUC, MANTANUS LUC
Принадлежит: Symetis SA

A delivery catheter for a stent. The delivery catheter may comprise a distal end and a proximal end. The distal end includes a stent attachment region adapted to receive a stent. The stent may be of the self-expanding type. The catheter further comprises a handle at its proximal end and at least one sheath which may at least partially circumferentially cover said stent such as to retain it in a collapsed configuration. The sheath is coupled at its proximal end to an actuator located on said handle portion. 1a distal end and a proximal end, the distal end including a stent attachment region adapted to receive a stent, the delivery catheter further comprising a handle at its proximal end and at least one sheath for at least partially circumferentially covering the stent such as to retain the stent in a collapsed configuration, the at least one sheath being coupled at a proximal end to an actuator located in or on the handle for actuating movement of the at least one sheath,wherein the handle is configured and adapted to facilitate accurate positioning and deployment of a stent valve through a presence of a frictional member which presents a first level of resistance to movement of the actuator relative to the handle,when the distal end of the at least one sheath has reached a first defined position on the stent during proximal and/or distal movement of the at least one sheath along the stent and to present a second level of resistance to movement of the actuator relative to the handle, andwhen the distal end of the at least one sheath has reached a second defined position on the stent during proximal and/or distal movement of the at least one sheath along the stent.. A delivery catheter for a stent, the delivery catheter comprising: The present application is a continuation of U.S. application Ser. No. 15/588,498, filed May 5, 2019, which is a continuation of U.S. application Ser. No. 13/821,434, filed May 20, 2013, now U.S. Pat. No. 9,675,485, which in turn is a ...

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Номер записи: 89
09-03-2017 дата публикации

MEDICAL DEVICES AND DELIVERY SYSTEMS FOR DELIVERING MEDICAL DEVICES

Номер: US20170065414A1
Автор: BRANDT Brian D., Hildebrand Daniel, LEUNG Emma, Martin Kenneth M., McCollum Brian, Paul David, SALAHIEH Amr, Sutton Benjamin
Принадлежит: BOSTON SCIENTIFIC SCIMED, INC.

Medical devices and delivery systems for delivering medical devices to a target location within a subject. In some embodiments the medical devices can be locked in a fully deployed and locked configuration. In some embodiments the delivery systems are configured with a single actuator to control the movement of multiple components of the delivery system. In some embodiments the actuator controls the independent and dependent movement of multiple components of the delivery system. 1. (canceled)2. A medical device system , comprising:a delivery system including an outer sheath and an inner member slidably received within the outer sheath, the inner member having a detent proximate a distal end of the inner member; anda replacement heart valve implant including an expandable anchoring element, the expandable anchoring element being releasably coupled to the distal end of the inner member;wherein the expandable anchoring element is releasable from the inner member when the detent proximate the distal end of the inner member is disposed outside of the outer sheath.3. The medical device system of claim 2 , wherein expandable anchoring element is configured to shift between a collapsed delivery configuration and an expanded deployed configuration.4. The medical device system of claim 2 , wherein the replacement heart valve implant includes a plurality of valve leaflets disposed within the expandable anchoring element.5. The medical device system of claim 2 , wherein the detent proximate the distal end of the inner member is an annular detent in an outer surface of the inner member.6. The medical device system of claim 2 , wherein the detent proximate the distal end of the inner member includes multiple detents in an outer surface of the inner member.7. The medical device system of claim 2 , wherein the delivery system includes a handle disposed at a proximal end of the outer sheath.8. The medical device system of claim 2 , wherein the expandable anchoring element is ...

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Номер записи: 90
11-03-2021 дата публикации

Conveyor for implant having at least one cavity

Номер: US20210068998A1
Автор: Anning Li, Shujun Li, SiYi Li
Принадлежит: Lifetech Scientific Shenzhen Co Ltd

A conveyor for an implant having at least one cavity, including a conveying handle, a conveying cable, and a core wire. The conveying cable is a tubular body, a proximal end of the core wire is connected to the conveying handle, and a distal end of the core wire penetrates a distal end of the conveying cable from a proximal end of the conveying cable; a first control is provided on the conveying handle, and when the implant is connected to the distal end of the conveying cable, the first control controls the distal end of the core wire to extend into the implant to straighten the curved implant, or the first control controls the core wire to withdraw from the implant to restore the implant to a preset shape. The conveyor can load and release the implant on the conveyor, and be used in the entire implanting process.

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Номер записи: 91
12-03-2015 дата публикации

MANUAL ACTUATION SYSTEM FOR DEPLOYMENT OF IMPLANT

Номер: US20150073524A1
Автор: Barry David, Bennett Eric, Bose Arani, Pons Stephen, Tompkins Ben, Vargas Matt, Vitus Erin
Принадлежит:

A system for mechanically deploying intraluminal implants is disclosed. The system is used with an implant that is delivered and/or deployed via a pull wire and includes a handle having a funnel and receiving channel for receiving the pull wire, a slider having a thumb grip and a wedge, and a shuttle having a grabber for grasping the pull wire. The thumb grip is pulled proximally to retract the wedge to cause the grabber to grasp the wire and retract the shuttle but not the wire. An extension spring linked between the slider and the shuttle abruptly pulls the shuttle to retract the pull wire after the slider is fully retracted. 1. A handle for retracting a pull wire , the handle comprising:a slider, a shuttle, and a trip, said slider and said shuttle movably mounted to said handle, said slider having a resting position, an intermediate position, and a deployment position, and movable by a user among said positions, said shuttle having a resting position and a deployed position and a wire gripper for engaging a pull wire;wherein when said slider is moved to said deployment position, said shuttle converts to its deployed position via said trip, and wherein when said shuttle converts to said deployed position, said shuttle is moved to retract a pull wire.2. The handle according to wherein when said slider is in said resting position and said intermediate position claim 1 , said shuttle is in said resting position.3. The handle according to wherein said slider and said shuttle return to their respective resting positions following release of said slider from said deployment position.4. The handle according to further comprising a stop and wherein said shuttle further comprises a button claim 1 , whereby said button rests against said stop when said shuttle is in said resting position claim 1 , and wherein said button is depressed by said slider when said slider is in said deployment position claim 1 , whereby said button no longer rests against said stop.5. The handle ...

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Номер записи: 92
29-05-2014 дата публикации

Assembly of stent grafts with diameter reducing ties

Номер: US20140148895A1
Автор: Chantelle King
Принадлежит: Cook Medical Technologies LLC

A temporary diameter reduction constraint arrangement for a stent graft is disclosed. The arrangement comprises: primary and secondary release wires extending along the graft; a plurality of loops of thread, each loop engaged with either the primary or secondary wire and engaged around a portion of the graft circumferentially spaced away from its release wire, and drawn tight to reduce the diameter of the graft; an end constraint arrangement comprising four of the plurality of loops of thread arranged into a first and second pairs engaged with respective primary and secondary wires; and an intermediate constraint arrangement comprising a fifth and sixth of the plurality of loops of thread arranged into a third pair, the third pair engaged with the primary release wire, the primary release wire deviating towards the secondary release wire so as to locate the intermediate constraint arrangement substantially in-line with the end constraint arrangement.

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Номер записи: 93
17-03-2016 дата публикации

LOADING APPARATUS AND SYSTEM FOR EXPANDABLE INTRALUMINAL MEDICAL DEVICES

Номер: US20160074185A1
Автор: Burke Jessica L., Chambers Sean D., Melsheimer Jeffry S., Valaie Arman
Принадлежит: Cook Medical Technologies LLC

Medical device loading apparatuses, systems, methods and kits are described. A loading apparatus comprises a main body having a proximal end defining a proximal opening, a distal end defining a distal opening, and a passageway extending between the proximal and distal openings. The passageway defines a proximal chamber having a first inner diameter, a distal chamber having a second inner diameter, and a transition chamber disposed between the proximal and distal chambers. The transition chamber has an inner diameter that transitions from the larger second inner diameter to the smaller first inner diameter. The main body has a separable connection that divides the main body between proximal and distal portions when disrupted. An expandable intraluminal medical device can be loaded into a delivery catheter using the loading apparatus by placing the device into the passageway such that it is in a radially-expanded configuration; pulling the device along an axial path through the loading apparatus such that the device transitions from the radially-expanded configuration to a radially-compressed configuration; and pushing the radially-compressed device along the axial path into the delivery catheter. 1. A medical device loading system , comprising:a loading apparatus comprising a main body having a proximal end defining a proximal opening, a distal end defining a distal opening, and a passageway extending between the proximal and distal openings, the passageway defining a proximal chamber having a first inner diameter, a distal chamber having a second inner diameter, and a transition chamber disposed between the proximal and distal chambers, the second inner diameter being greater than the first inner diameter and the transition chamber having an inner diameter that transitions along an axial length of the transition chamber from the second inner diameter to the first inner diameter;a delivery catheter comprising an outer tubular member defining a sheath lumen, a dilator ...

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Номер записи: 94
17-03-2016 дата публикации

PIVOT OPERATED VASCULAR INTERVENTION DEVICE DELIVERY SYSTEM

Номер: US20160074189A1
Автор: Cummins Sean
Принадлежит:

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface and a radially outward toothed surface that may be moved into and out of contact with a catch by mounting the thumbwheel on a pivot plate within the handle. The pivot plate may be pivoted with respect to the handle between a locked position to prevent rotation of the thumbwheel, and an unlocked position that permits rotation of the thumbwheel. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. 1. A vascular intervention device delivery system comprising:a handle that includes a catch positioned therein;a pivot plate mounted in the handle, and being pivotable about a first axis with respect to the handle between a locked position and an unlocked position, and the pivot plate supporting an axle that defines a second axis;a thumbwheel rotatably mounted on the axle and having a radially outward thumb surface and a radially outward toothed surface;wherein the radially outward toothed surface is in contact with the catch when the pivot plate is at the locked position to prevent rotation of the thumbwheel in a forward direction, and the radially outward toothed surface is out of contact with the catch when the pivot plate is at the unlocked position to permit rotation of the thumbwheel in a reverse direction;a catheter with a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon;a retractable sheath movable from a first position covering the distal carrier segment, to a second position ...

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Номер записи: 95
17-03-2016 дата публикации

Wedge holding mechanism for vascular intervention device delivery system

Номер: US20160074190A1
Автор: Sean Cummins
Принадлежит: Cook Medical Technologies LLC

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A holding mechanism is operably positioned between the handle and the thumbwheel, and includes a wedge pin trapped to move in a wedge shaped cavity between a wedged position that prevents the thumb wheel from rotating, and an unwedged position that permits the thumbwheel to rotate to facilitate deployment of a self-expanding stent.

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Номер записи: 96
17-03-2016 дата публикации

THUMBWHEEL ACTUATED VASCULAR INTERVENTION DEVICE DELIVERY SYSTEM

Номер: US20160074191A1
Автор: Cummins Sean, McGrath Darach
Принадлежит:

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. A catheter has a proximal end attached to the handle and a distal carrier segment for mounting a stent thereon. A retractable sheath is movable to a position retracted proximally to uncover the distal carrier segment. A pull with a curved cross section extends between the thumbwheel and the retractable sheath. An idler wheel with a perimeter notch is rotatably mounted in the handle proximal to the thumbwheel. A pin is movably in the handle between a first position received in the perimeter notch to block rotation of the idler wheel, and a second position outside of the perimeter notch to permit rotation of the idler wheel. The pull wraps around the idler wheel to return in a direction for being wound onto a spool of the thumbwheel. 1. A vascular intervention device delivery system comprising:a handle;a thumbwheel rotatably mounted in the handle and having a spool and a radially outward thumb surface;a catheter with a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon;a retractable sheath movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment; anda pull extending between the thumbwheel and the retractable sheath, and the pull having a cross sectional shape with a concave side that is opposite to a convex side;an idler wheel rotatably mounted in the handle at a location proximal to the thumbwheel; andwherein the pull wraps around the idler wheel to return in a direction for being wound onto the spool of the thumbwheel.2. The vascular intervention device delivery system of wherein one of the convex side and the concave side of the pull is in contact with the idler wheel; andan other of the convex side and the concave side of the pull is in contact with the spool.3. The ...

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Номер записи: 97
17-03-2016 дата публикации

THUMBWHEEL ACTUATED VASCULAR INTERVENTION DEVICE DELIVERY SYSTEM

Номер: US20160074192A1
Автор: Cummins Sean, McGrath Darach
Принадлежит:

A vascular intervention device delivery system, such as for implanting a stent, includes a thumbwheel rotatably mounted in a handle. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A latch is positioned in the handle and moveable from a locked position at which the latch engages the radially outward thumb surface, and an unlocked position at which the latch is out of contact with the thumbwheel. A pusher, which is partially positioned outside of the handle, is operable to move the latch from the locked position to the unlocked position. The retractable sheath moves responsive to rotation of the thumbwheel. 1. A vascular intervention device delivery system comprising:a handle;a thumbwheel rotatably mounted in the handle and having a radially outward thumb surface;a catheter with a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon;a retractable sheath movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment;a pull extending between the thumbwheel and the retractable sheath;a lock movable between a locked position and an unlocked position;the lock includes a latch positioned in the handle and movable between the locked position at which the latch engages the radially outward thumb surface, and the unlocked position at which the latch is out of contact with the radially outward thumb surface;a pusher at least partially positioned outside the handle and being operably coupled to move the latch from the locked position to the unlocked position; andthe retractable sheath moving toward the second ...

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Номер записи: 98
17-03-2016 дата публикации

PULL WIRE AND SPOOL FOR VASCULAR INTERVENTION DEVICE DELIVERY SYSTEM

Номер: US20160074194A1
Автор: Cummins Sean, McGrath Darach
Принадлежит:

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface and a spool. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. The pull terminates at a proximal end with an integral anchor that extends through an opening in a wall that separates an inner surface of spool from a collection surface. The retractable sheath moves responsive to rotation of the thumbwheel in a first direction. 1. A vascular intervention device delivery system comprising:a handle;a thumbwheel rotatably mounted in the handle and having a radially outward thumb surface and a spool;a catheter with a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon;a retractable sheath movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment;a pull extending between the thumbwheel and the retractable sheath;wherein the spool has an inner surface separated from a collection surface by a wall, and the pull terminates at a proximal end with an integral anchor that extends through an opening in the wall and contacts the inner surface;the retractable sheath moving responsive to rotation of the thumbwheel in a first direction.2. The vascular intervention device delivery system of wherein the pull includes a proximal segment integral with a distal segment;the proximal segment includes the integral anchor; andthe proximal segment has a greater ductility than the distal segment.3. The vascular intervention ...

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Номер записи: 99
24-03-2022 дата публикации

Temporary diameter reduction constraint arrangement for a stent graft in combination with a stent graft

Номер: US20220087812A1
Автор: Chantelle King, Logan SMITH
Принадлежит: Cook Medical Technologies LLC

A temporary diameter reduction constraint arrangement for a stent graft in combination with a stent graft is disclosed. The stent graft has a proximal end and a distal end and comprises a biocompatible graft material tube and a plurality of longitudinally spaced apart self-expanding stents fastened thereto, including at least an end stent and a plurality of intermediate stents. The constraint arrangement comprises: an elongate receiver extending longitudinally within the graft material tube; a first wire extending longitudinally along the graft material tube in a first serpentine pattern; and a second wire extending longitudinally along the graft material tube in a second serpentine pattern, wherein at least one of the first and second wires repeatedly loops over the receiver along a longitudinal length of the stent graft thereby securing the stent graft to the receiver. In one embodiment there is also a plurality of loops of thread to reduce the stent graft.

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Номер записи: 100