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An annular artificial heart valve

A technology of artificial heart valve and heart tissue, applied in the direction of heart valve, valve ring, medical science, etc., can solve concurrent PPM and other problems

Active Publication Date: 2022-05-27
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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  • An annular artificial heart valve
  • An annular artificial heart valve
  • An annular artificial heart valve

Examples

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Embodiment Construction

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

[0043] The prosthetic heart valve is generally divided into three components: the middle movable leaflet, the valve annulus that fixes the valve leaflet, and the reinforced and shaped sewing ring that connects the valve annulus and the myocardial tissue. Figure 1A is the mitral valve anatomy, Figure 1B The figure shows the anatomy of the aortic valve. The artificial mechanical heart valve is composed of a circular annular valve ring, two valve leaflets, and a sewing ring. The two valve leaflets are hinged in the valve frame. The sewing ring includes an inner ring and a convex suture flange. The inner ring is used to connect with the valve. The ring is connected, the suture flange is used for suturing with the human heart tissue, the inner ring of the suture ring is fixed to the valve ring at the outside of the valve ring, and the suture flange is connected to the upper part o...

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Abstract

A supraannular artificial heart valve, including a valve ring, two leaflets, and a sewing ring, the two leaflets are hinged in the valve ring, the sewing ring includes an inner ring and an outer edge, the inner ring is used to connect with the valve ring, and the outer The edge is used for suturing with human heart tissue, the inner ring of the sewing ring is fixed on the outside of the valve ring, the inner ring of the sewing ring is connected to the upper part of the valve ring, and the lower part of the valve ring is exposed, that is, the lower part of the valve ring is not sutured The exposed part of the valve ring extends into the heart tissue; implanting an artificial heart valve with a larger opening area at the original valve ring position solves the problem of postoperative PPM in some patients with small valve rings.

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 cone-shaped sphere composed of atrium and ventricle. 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, and between the right ventricle and the pulmonary artery is the aortic valve. pulmonary valve. The main function of the heart valve is to ensure a one-way flow of blood when the heart contracts or relaxes, and promotes blood circulation in the body. [0003] Heart valve stenosis and / or insufficiency due to functional or structural abnormalities of single or multiple valve structures due to congenital dysplasia or organic lesions caused by acquired diseases, is called valvular heart disease. Heart valve ...

Claims

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Application Information

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Patent Type & Authority Patents(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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