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Improved grasping for tissue repair

A technology for organizing and retaining elements, used in medical science, surgery, prostheses, etc., to solve problems such as expansion, adequate closure of restrictions, and weakening

Active Publication Date: 2017-08-29
ABBOTT CARDIOVASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mitral regurgitation can significantly reduce the pumping efficiency of the heart, putting the patient at risk of severe and progressive heart failure
Often, the annulus may become damaged, swollen, or weakened, limiting the ability of the mitral valve to close adequately against the greater pressure of the left ventricle

Method used

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  • Improved grasping for tissue repair
  • Improved grasping for tissue repair
  • Improved grasping for tissue repair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] I. Overview

[0036] A. Cardiac Physiology

[0037] Such as figure 1 As shown in , the mitral valve (MV) consists of a pair of leaflets (LF) with free edges (EF) that coapt uniformly to follow the line of apposition in patients with normal cardiac structure and function ( C) closed. The leaflets (LF) are attached to surrounding cardiac structures along an annular region called the annulus (AN). The free edge (FE) of the leaflet (LF) is secured to the inferior portion of the left ventricle (LV) by the chordae (or "tendons").

[0038] As the left ventricle contracts (called "systole"), blood flow from the left ventricle through the mitral valve to the left atrium (called "mitral regurgitation") is normally blocked by the mitral valve.

[0039] Regurgitation occurs when the valve leaflets fail to close and allow leakage from the left ventricle into the left atrium. Many structural defects of the heart can cause mitral regurgitation. figure 2 The mitral valve is show...

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PUM

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Abstract

The invention relates to an improved grasping for tissue repair. The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit of US Application No. 14 / 577,852 filed December 19, 2014, which is hereby incorporated by reference in its entirety. Background technique [0003] 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 treatment of body tissue, such as tissue access or flap repair. More particularly, the present invention relates to devices and methods for repairing heart or vein valves and for removing or disabling mitral valve repair components through minimally invasive procedures. [0004] Surgical repair of body tissue typically involves tissue approximation and the fastening of such tissue in the approximating device. In repairing a valve, tissue approximation includes apposition of the leaflets of the valve in a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/08A61B17/122A61B17/128
CPCA61B17/08A61B17/122A61B17/1285A61B2017/00243A61B2017/00783A61B2017/081A61F2/246A61F2220/0091A61F2220/0016
Inventor 迈克尔·F·韦
Owner ABBOTT CARDIOVASCULAR