Valve prosthesis

A technology of valve prosthesis and skirt, applied in the field of medical equipment

Pending Publication Date: 2021-09-03
SHANGHAI TRULIVE MEDTECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a valve prosthesis to solve the problems existing in the existing valve prosthesis after implantation

Method used

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Embodiment Construction

[0030] In order to make the purpose, advantages and features of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and not drawn to scale, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In addition, the structures shown in the drawings are often a part of the actual structures. In particular, each drawing needs to display different emphases, and sometimes uses different scales.

[0031] As used in the present invention, the singular forms "a", "an" and "the" include plural objects, the term "or" is usually used in the sense of including "and / or", and the term "several" Usually, the term "at least one" is used in the meaning of "at least one", and the term "at least two" is usually used in the meaning of "two or more". In ...

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PUM

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Abstract

The invention provides a valve prosthesis. The valve prosthesis comprises a support and a skirt assembly; the support is provided with an inflow end and an outflow end which are opposite in the axial direction of the support; the skirt assembly comprises at least two skirts, the skirts surround the support in a ring shape and are provided with inner edges and outer edges, the inner edges are the edges, close to the axis of the support, of the skirts, and the outer edges are the edges, away from the axis of the support, of the skirts; the inner edges are connected with the support, and the outer edges form a free end; the at least two skirts are arranged at intervals along the axial direction of the support and are different in radial external dimensions; and the outer edge of at least one skirt is used for being in contact with a native tissue. By means of the configuration, even if a small amount of blood flow enters a gap between the skirts and the native tissue, the blood flow can be blocked by the skirts of different radial outer sizes to form a blood flow low-speed area, blood can be solidified in the low-speed area, perivalvular leakage is reduced, and meanwhile endothelialization is accelerated. Meanwhile, the roughness of the skirt assembly is increased due to the change of the radial outer size of the skirts, and tissue climbing growth and endothelialization are facilitated.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a valve prosthesis. Background technique [0002] The heart has four chambers, the left atrium and left ventricle are on the left side of the heart, and the right atrium and right ventricle are on the right side of the heart. The atrium and ventricle form the ventricular inflow tract, the left ventricle and the aorta form the left ventricular outflow tract, and the right ventricle and the pulmonary artery form the right ventricular outflow tract. There are valves with a "one-way valve" function at the ventricular inflow and ventricular outflow, and the 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 on...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2409A61F2/2412A61F2/2475A61F2/2418
Inventor 杨威闻靖
Owner SHANGHAI TRULIVE MEDTECH CO LTD
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