Artificial heart valve

Abstract

The invention provides an artificial heart valve. The length of the anterior and posterior valve grasping lugs is greater than that of the septal valve grasping lugs, so that the anterior and posterior valve grasping lugs and the septal valve grasping lugs are designed differently to adapt to different anatomical structures; the partition valve grabbing lug is used for being anchored on a partition valve of the tricuspid valve leaflet, the anterior and posterior valve grabbing lug is used for being anchored on an anterior valve and/or posterior valve of the tricuspid valve leaflet, so that the tricuspid valve leaflet is clamped between the flange section and the grabbing lug section, and the flange section and the grabbing lug section structure of the outer-layer support have an enough axial anchoring force; the axial anchoring of the artificial heart valve can be achieved without additionally arranging a needling structure, damage to native tissue is small, and the artificial heart valve can be stably anchored between the right atrium and the right ventricle without a large main body section diameter.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an artificial heart valve. Background technique [0002] Heart valves are membrane-like structures that can open and close in the organs of humans or certain animals. Every human heart has four valves. The aortic valve connects the left ventricle to the aorta, the pulmonary valve connects the right ventricle to the pulmonary artery, the mitral valve connects the left atrium to the left ventricle, and the tricuspid valve connects the right atrium to the right ventricle. They all act as one-way valves, so that blood can only flow from one direction to the other and not back. With the development of social economy and the aging of the population, the incidence of valvular heart disease has increased significantly. Studies have shown that the incidence of valvular heart disease in the elderly population over 75 years old is as high as 13.3%. At present, traditional surgica...

AI Technical Summary

Problems solved by technology

[0004]However, the above-mentioned design method of using radial support to achieve the purpose of axial anchoring and stability has relatively large damage to the valve annulus, valve leaflets, conduction tissue and Risks of native tissue such as atrioventricular wall: ①After a large radial size is implanted in the valve annulus, the valve annulus needs to be stretched, which may damage the valve annulus, compress the conduction tissue, and even compress the aorta, affecting left ventricular function; At the same time, for patients who have been implanted with PPM, the excessive radial force of the artificial valve may damage the wire of the PPM, or require more complicated surgical methods; Ring and ventricular wall

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