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Low profile heart valve and delivery system

A heart valve and delivery system technology, applied in the direction of heart valves, valve rings, medical science, etc., can solve problems such as the destructive impact of heart geometry and functional impact

Active Publication Date: 2019-06-04
赛诺心畅医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending on the degree of regurgitation, this regurgitation can have not only functional but also self-destructive effects on cardiac geometry

Method used

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  • Low profile heart valve and delivery system
  • Low profile heart valve and delivery system
  • Low profile heart valve and delivery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention generally relates to medical devices and methods for endovascular or transcatheter replacement of heart valves in a patient.

[0026] One aspect of the present invention provides a medical device comprising three parts: a delivery system (9), a self-expanding annulus (10) and a replacement heart valve (11) connected to the self-expanding valve annulus (11). Expanded valve ring (10). Such as Figure 1-11 As shown, the self-expanding valve annulus (10) includes valve ring top flange (also called valve ring top ring) (1), valve ring support body (2), anchoring device (3), bridge (4), Annulus top flange locking collar (7) and anchor device locking collar (8). A replacement heart valve (11) includes a leaflet support (5) and leaflets (6). The self-expanding valve annulus (10) is used as the positioning and locking function part of the heart valve.

[0027] The self-expanding annulus (10) and leaflet support (5) are formed from wire or tube material;...

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Abstract

Medical devices and methods for endovascularly or transcatheterly replacing a patient's heart valve, including: a delivery system (9) having an entry profile of 30 Fr or less; a self-expandable annulus ring (10) disposed in the delivery system (9) including a self-expandable anchoring and clipping structure and multiple bridges (4) connected to the anchoring and clipping structure; and a replacement heart valve (11) disposed in the delivery system (9) and connected to the bridges (4). The bridges (4) are formed of a shape memory material; during deployment, the bridges (4) fold upwardly insidethe self-expandable anchoring and clipping structure to lift the replacement heart valve (11) into position.

Description

technical field [0001] The present invention generally relates to medical devices and methods for endovascular or transcatheter replacement of heart valves in a patient. Background technique [0002] The human heart has four chambers and four valves. Heart valves control the direction of blood flow. Fully functioning heart valves ensure proper blood circulation during the cardiac cycle. Heart valve regurgitation or leakage occurs when the leaflets of the heart valve do not fully touch (coapt) due to a disorder, such as congenital rupture of the chordae, elongated chordae, enlarged left ventricle, damaged papillary muscles, Infection leads to structural damage of the valve, degenerative processes, calcification of the leaflets, stretching of the valve annulus, increased interpapillary muscle distance, etc. Regardless of the cause, regurgitation interferes with heart function because it allows blood to flow back into the valves in the wrong direction. Depending on the degr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2/2436A61F2220/0008A61F2/243A61F2/2445A61F2210/0014
Inventor 李天竹马剑翔孟磊
Owner 赛诺心畅医疗科技有限公司