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    Sub-xiphoid ablation clamp and method of sub-xiphoid ablation
    1.
    发明授权
    Sub-xiphoid ablation clamp and method of sub-xiphoid ablation 有权

    公开(公告)号：US10856932B2

    公开(公告)日：2020-12-08

    申请号：US15598359

    申请日：2017-05-18

    Applicant: Medtronic, Inc.

    Inventor： Mark Stewart ,  Thomas Daigle ,  David Francischelli ,  John Liddicoat ,  Paul Rothstein ,  Steven F. Bolling

    IPC: A61B18/14 ,  A61N1/362 ,  A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  A61B17/00 ,  A61B17/29 ,  A61B18/00 ,  A61B34/20

    Abstract: Device and method for sub-xiphoid ablation of patient tissue. A sub-xiphoid access clamp has a handle, an elongate neck coupled to the handle and first and second opposing jaws. The first and second opposing jaws have first and second opposing relief segments being generally co-planar and concave with respect to one another to form a void therebetween, and first and second opposing elongate ablation elements positioned along the first and second opposing jaws and distal of the first and second opposing relief segments relative to the handle. The first and second opposing jaws are articulate between a closed position and an open position to admit, at least in part, a second portion of tissue of the patient within the void created by the first and second opposing relief segments while the first portion of tissue is positioned between the first and second ablation elements in the closed position.

    Valve prostheses
    3.
    发明授权
    Valve prostheses 有权
    阀门假肢

    公开(公告)号：US09192467B2

    公开(公告)日：2015-11-24

    申请号：US14032680

    申请日：2013-09-20

    Applicant: Medtronic, Inc.

    Inventor： Gregory H. Lambrecht ,  John Liddicoat ,  Robert Kevin Moore

    IPC: A61F2/24

    CPC classification number: A61F2/2418 ,  A61F2/2412 ,  A61F2/2427 ,  A61F2220/0016 ,  A61F2250/0059

    Abstract: A valve prosthesis comprises a valve fixation device that comprises a plurality of struts that run in a direction substantially parallel to the longitudinal axis; a first circumferential row of cells coupled to the plurality of struts; and a second circumferential row of cells coupled to the plurality of struts. The valve fixation device is compressible to a compressed state for delivery to an implantation site, and expandable to an expanded state for deployment at the implantation site. The plurality of struts are substantially rigid such that the plurality of struts do not change dimensions between the compressed state and the expanded state. The valve prosthesis also comprises a valve comprising a plurality of leaflets and a plurality of commissures. The valve is coupled to the valve fixation device such that the plurality of commissures are radially aligned with respective struts of the plurality of struts.

    Abstract translation: 瓣膜假体包括阀固定装置，其包括沿基本上平行于纵向轴线的方向延伸的多个支柱; 耦合到所述多个支柱的第一圆周排的单元; 以及耦合到所述多个支柱的第二圆周排的单元。 瓣膜固定装置可压缩到压缩状态，以便输送到植入部位，并且可扩展到膨胀状态以在植入部位展开。 多个支柱基本上是刚性的，使得多个支柱在压缩状态和膨胀状态之间不改变尺寸。 瓣膜假体还包括包括多个传单和多个连合部的阀。 所述阀联接到所述阀固定装置，使得所述多个连合部与所述多个支柱的相应支柱径向对准。

    Valve prostheses
    4.
    发明申请
    Valve prostheses 审中-公开
    阀门假肢

    公开(公告)号：US20140236288A1

    公开(公告)日：2014-08-21

    申请号：US14032680

    申请日：2013-09-20

    Applicant: Medtronic, Inc.

    Inventor： Gregory H. Lambrecht ,  John Liddicoat ,  Robert Kevin Moore

    IPC: A61F2/24

    CPC classification number: A61F2/2418 ,  A61F2/2412 ,  A61F2/2427 ,  A61F2220/0016 ,  A61F2250/0059

    Abstract: The present invention discloses devices and methods for performing intravascular procedures without cardiac bypass. The devices include various embodiments of temporary filter devices, temporary valves, and prosthetic valves.The temporary filter devices have one or more cannulae which provide access for surgical tools for effecting repair of the cardiac valves. A cannula may have filters of various configurations encircling the distal region of the cannula, which prevent embolitic material from entering the coronary arteries and aorta.The temporary valve devices may also have one or more cannulae which guide the insertion of the valve into the aorta. The valve devices expand in the aorta to occupy the entire flow path of the vessel. In one embodiment, the temporary valve is a disc of flexible, porous, material that acts to filter blood passing therethrough. A set of valve leaflets extend peripherally from the disc. These leaflets can alternately collapse to prevent blood flow through the valve and extend to permit flow.The prosthetic valves include valve fixation devices which secure the prosthetic valve to the wall of the vessel. In one embodiment, the prosthetic valves have at least one substantially rigid strut, at least two expandable fixation rings located about the circumference of the base of the apex of the valve, and one or more commissures and leaflets. The prosthetic valves are introduced into the vascular system a compressed state, advanced to the site of implantation, expanded and secured to the vessel wall.

    Abstract translation: 本发明公开了一种在没有心脏旁路的情况下执行血管内手术的装置和方法。 这些装置包括临时过滤装置，临时阀和假肢阀的各种实施例。 临时过滤器装置具有一个或多个套管，其提供用于外科手术工具的进入以实现心脏瓣膜的修复。 套管可以具有围绕套管的远侧区域的各种构造的过滤器，其防止栓塞材料进入冠状动脉和主动脉。 临时阀装置还可以具有一个或多个引导阀插入主动脉的套管。 瓣膜装置在主动脉中扩张以占据血管的整个流动路径。 在一个实施例中，临时阀是柔性多孔材料的盘，其用于过滤血液中的血液。 一组瓣叶从圆盘外围延伸。 这些传单可以交替塌缩，以防止血液流过阀门并延伸以允许流动。 假体瓣膜包括固定假体瓣膜至血管壁的瓣膜固定装置。 在一个实施例中，人造瓣膜具有至少一个基本上刚性的支柱，围绕阀的顶点的基部的圆周定位的至少两个可扩张的固定环，以及一个或多个连合和传单。 人造瓣膜被引入血管系统中的压缩状态，前进到植入部位，扩张并固定到血管壁。

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