公开(公告)号：US20240058125A1

公开(公告)日：2024-02-22

申请号：US18385338

申请日：2023-10-30

Applicant: Medtronic, Inc.

Inventor： Matthew Rust ,  Padraig Savage ,  Gianfranco Pellegrini ,  Finn Rinne

IPC: A61F2/24

CPC classification number: A61F2/2436 ,  A61F2/2418 ,  A61F2/2427 ,  A61F2/2439 ,  A61F2002/9505

Abstract: A delivery system for use with a prosthetic heart valve having a stent frame to which a valve structure is attached, includes a shaft assembly including a distal end and a coupling structure disposed near the distal end and configured to be coupled to a distal end of the prosthetic heart valve. The system includes a sheath assembly defining a lumen sized to slidably receive the shaft assembly. The delivery system is configured to transition from a loaded state in which the sheath assembly encompasses the prosthetic heart valve to a deployed state in which the sheath assembly is withdrawn from the prosthetic heart valve. The coupling structure is configured to provide a controlled expansion or contraction of the distal end of the prosthetic heart valve based on longitudinal movement of the distal end of the shaft assembly.

公开(公告)号：US10568739B2

公开(公告)日：2020-02-25

申请号：US15457454

申请日：2017-03-13

Applicant: Medtronic, Inc.

Inventor： Michael Gloss ,  Timothy Groen ,  Carolyn Majkrzak ,  Behrooz Nadian ,  Matthew Rust ,  Timothy Ryan ,  Matthew Weston ,  Marc Anderson ,  Evelyn Birmingham ,  Mark Casley ,  Deirdre McGowan Smyth

IPC: A61F2/24 ,  A61F2/95

Abstract: A system includes a medical device for implanting in a valve of a subject, the implantable medical device having a self-expanding frame; and a holder configured to retain the frame of the implantable medical device in a constricted configuration and to control expansion of the frame. The holder has a controllably constrictable and expandable loop, wherein the loop is disposed about at least a portion of the self-expanding frame such that constriction or expansion of the first loop controls constriction or expansion of the frame.

公开(公告)号：US20140277419A1

公开(公告)日：2014-09-18

申请号：US13795066

申请日：2013-03-12

Applicant: MEDTRONIC, INC.

Inventor： Kshitija Garde ,  Philip Haarstad ,  Igor Kovalsky ,  Stephen Nash ,  Michael Krivoruchko ,  Gianfranco Pellegrini ,  Finn Rinne ,  Matthew Rust ,  Jeffrey Sandstrom ,  Padraig Savage ,  Adam Shipley ,  William Steinberg

IPC: A61F2/24

CPC classification number: A61F2/2445 ,  A61F2/2403 ,  A61F2/2412 ,  A61F2/2418 ,  A61F2250/0069

Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the stent which includes a plurality of self-expanding struts and an annular sealing membrane. Each strut has a first end coupled to a distal end of the stent and a second end not coupled to the stent. Each anti-paravalvular leakage component is moveable between a compressed configuration and a deployed configuration. In the compressed configuration, each strut extends distally away from the distal end of the stent. In the deployed configuration, each strut extends proximally away from the distal end of the stent. In an embodiment hereof, the deployed strut has a C-shape and is twisted such that the C-shape lies in a plane substantially along or tangential with the outer surface of the stent. In another embodiment hereof, the deployed strut is rolled-up and extends radially away from the outer surface of the stent.

Abstract translation: 经导管瓣膜假体包括可扩张的管状支架，支架内的假体瓣膜，以及耦合到环绕支架并包围多个自膨胀支柱和环形密封膜的抗瓣膜泄漏部件。 每个支柱具有联接到支架的远端的第一端和未联接到支架的第二端。 每个反paravalvular泄漏组件可在压缩配置和部署配置之间移动。 在压缩构型中，每个支柱远离支架远端延伸。 在展开的构造中，每个支柱向近端延伸远离支架的远端。 在本发明的一个实施例中，所展开的支柱具有C形并且被扭曲，使得C形位于与支架的外表面基本上沿或相切的平面中。 在本发明的另一个实施例中，部署的支柱被卷起并且从支架的外表面径向延伸。

公开(公告)号：US20140012369A1

公开(公告)日：2014-01-09

申请号：US13969784

申请日：2013-08-19

Applicant: Medtronic, Inc.

Inventor： Robert Murry, III ,  Susheel Deshmukh ,  Padraig Savage ,  Matthew Rust

IPC: A61F2/24

CPC classification number: A61F2/2436 ,  A61F2002/9517 ,  A61F2002/9534

Abstract: A delivery device for percutaneously deploying a stented prosthetic heart valve. The device includes a delivery capsule and a recapture sheath. The capsule is configured to compressively retain the prosthesis. The recapture sheath includes a funnel segment having a plurality of circumferentially spaced runners and a polymer overlay. The runners are attached to a shaft and terminate at a distal tip. The overlay surrounds the runners, and is bonded to the shaft but not to at least the tips. The funnel segment is transitionable from a normal condition to an expanded condition forming a funnel shape with a distally increasing diameter, and self-transitionable back toward the normal condition. The funnel segment facilitates sliding of the capsule over a partially deployed region of the prosthesis as part of a recapturing operation. The runners provide columnar strength, with the overlay controlling a shape of the funnel segment.

Abstract translation: 用于经皮部署支架假体心脏瓣膜的输送装置。 该装置包括递送胶囊和再捕获护套。 胶囊被构造成压缩地保持假体。 重新捕获鞘包括具有多个周向间隔的流道和聚合物覆盖层的漏斗段。 流道附着在轴上，并终止于远端。 覆盖物围绕流道，并且结合到轴，但至少不是尖端。 漏斗段可以从正常状态转变成扩展状态，形成具有向远端增加的直径的漏斗形状，并且可自由转变回正常状态。 漏斗段有助于将胶囊滑动在假体的部分展开的区域上，作为重新捕获操作的一部分。 跑步者提供柱状强度，覆盖层控制漏斗段的形状。