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On-ring p heart valve prosthesis

A technology of artificial heart valve and heart tissue, applied in the direction of heart valve, valve ring, medical science, etc., can solve the problems of concurrent PPM, achieve low closure capacity, low transvalvular pressure difference, and avoid the effect of enlarged forming

Active Publication Date: 2020-02-18
LANZHOU LANFEI MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the invention is to: solve the problem between the small installation size and the large aperture matching, optimize the leaflet rotation hinge parts, and propose a new valve structure
[0015] The use of the "annulus-shaped artificial mechanical heart valve" of the present invention can implant an artificial heart valve with a larger opening area at the original valve annulus position, which solves the problem of postoperative PPM in some patients with small valve annulus

Method used

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  • On-ring p heart valve prosthesis
  • On-ring p heart valve prosthesis
  • On-ring p heart valve prosthesis

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Embodiment Construction

[0042] Below in conjunction with embodiment the present invention is described in further detail:

[0043] Artificial heart valves are generally divided into three components: the movable leaflet in the middle, the valve ring that fixes the valve leaflet, and the reinforced shaping sewing ring that connects the valve ring and myocardial tissue. Figure 1A is the anatomy of the mitral valve, Figure 1B The diagram shows the anatomy of the aortic valve. The artificial mechanical heart valve is composed of a circular valve ring, two leaflets, and a suture ring. The ring is connected, the suture flange is used for suturing with human heart tissue, the inner hoop of the suture ring is fixedly connected to the valve annulus outside the valve annulus, and the suture flange is connected to the upper part of the inner ring. There are two functions of the sewing ring: one is to reinforce the annulus and leaflet assembly, and the other is to connect the annulus and leaflet assembly with...

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Abstract

The invention discloses an on-ring heart valve prosthesis. The on-ring heart valve prosthesis comprises a valve ring, two valve leaflets and a suture ring, wherein the two valve leaflets are hinged inthe valve ring, the suture ring comprises an inner ring and an outer edge, the inner ring is used for being connected with the valve ring, the outer edge is used for being sutured with human heart tissue, the inner ring of the suture ring is hooped outside the valve ring and fixedly connected with the valve ring, the inner ring of the suture ring is connected to the upper portion of the valve ring, the lower portion of the valve ring is exposed, that is, the lower portion of the valve ring is not coated with the suture ring, and the exposed portion of the valve ring extends into the heart tissue. The heart valve prosthesis with a larger orifice area is implanted in an original valve ring position, and the problem of PPM concurrence after operation of part of small valve ring patients is solved.

Description

technical field [0001] The invention relates to a medical device implanted in a human body, in particular to an annular artificial heart valve. Background technique [0002] The heart is a slightly flattened conical sphere composed of atria and ventricles. The atrial septum and ventricular septum separate the atria and ventricles into left atrium, left ventricle, right atrium, and right ventricle, respectively. The atrioventricular valve between the left atrium and the left ventricle is called the mitral valve, between the right atrium and the right ventricle is the tricuspid valve, between the left ventricle and the aorta is the aortic valve, and between the right ventricle and the pulmonary artery is the pulmonary valve. The main function of the heart valve is to ensure that the blood flows in one direction when the heart contracts or relaxes, and promotes blood circulation in the body. [0003] When the function or structure of single or multiple valve structures is abn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/24A61F2/2442A61F2220/0008
Inventor 李海平苏春光冯德广魏中英李健史永亮赵晓艾马健
Owner LANZHOU LANFEI MEDICAL INSTR
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