Improved tissue fixation devices

A technique of tissue fixation and organization, applied in the repair of heart valves or venous valves, and in the field of devices for removing or disabling mitral valve repair components, it can solve the problems of increasing the risk of premature failure of the device, device degradation, etc., and achieves easy Cost-effective, life-increasing effect

Active Publication Date: 2018-02-06
ABBOTT CARDIOVASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfavorable degradation of the device due to continuous plastic deformation of the flexure (e.g. due to continuous opening and closing of the leaflets), which increases the risk of premature device failure

Method used

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  • Improved tissue fixation devices
  • Improved tissue fixation devices
  • Improved tissue fixation devices

Examples

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other Embodiment approach

[0062] Other embodiments may include flexible members with more or fewer holes and / or with holes in other locations on the flexible member. For example, some embodiments may omit holes entirely, and some embodiments may include only one hole and / or only one hole per arm. Other embodiments may include holes of different shapes and / or sizes, such as holes formed as slots, slits, or other shapes. In embodiments comprising more than one aperture, the apertures may be uniform in size, shape, and distribution, or may be non-uniform in one or more of size, shape, and distribution.

[0063] Each arm 106 of the illustrated embodiment includes a bifurcated section 120 . The bifurcated section 120 may extend from the base section 104 to a distal location along the arm 106 toward the free end 108 of the arm 106 , as illustrated. In other embodiments, the bifurcation section may be positioned at other locations along the arm and / or base section. Other embodiments may include one or more...

other Embodiment approach

[0068] Other embodiments may include tissue grasping members having more or fewer holes and / or holes in other locations of the tissue grasping member. For example, some tissue grasping members may omit the aperture, or may include only one aperture. Other embodiments may include holes of different shapes—eg, slots, slits, or other shapes—and / or different sizes. In embodiments comprising more than one aperture, the apertures may be uniform in size, shape, and distribution, or may be non-uniform in one or more of size, shape, and distribution. In other embodiments, not every aperture of the tissue grasping member is configured to align with a corresponding aperture of the flexible member, and not every aperture of the flexible member is configured to align with a corresponding aperture of the tissue grasping member. alignment. In some embodiments, no holes are aligned when the tissue grasping member is properly positioned relative to the flexible member.

[0069] In the illus...

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PUM

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Abstract

The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to theflexible member by threading or looping suture lines around and / or through the tissue gripping member(s) and the flexible member and / or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.

Description

Background technique [0001] This application claims the benefit and priority of US Patent Application No. 14 / 677,294, filed April 2, 2015, which is incorporated herein by reference in its entirety. [0002] The present invention generally relates to medical methods, medical devices and medical systems. In particular, the present invention relates to methods, devices and systems for endoluminal, percutaneous or minimally invasive surgical treatment of body tissues, such as tissue closure or valve repair. More particularly, the present invention relates to heart valve or venous valve repair and devices and methods for removing or disabling mitral valve repair components through minimally invasive procedures. [0003] Surgical repair of body tissue typically involves closure of tissues and fastening of such tissues in a closing device. In repairing a valve, tissue closure typically involves coapting the leaflets of the valve in a therapeutic device, which can then be held by fa...

Claims

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Application Information

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IPC IPC(8): A61B17/122A61B17/08A61F2/24A61B17/00
CPCA61B17/083A61B17/122A61B17/1227A61F2/2454A61F2/246A61B2017/081A61B2017/00964A61B2017/00867A61B2017/00526A61B2017/00243A61F2220/0016
Inventor 迈克尔·F·韦
Owner ABBOTT CARDIOVASCULAR
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