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Cardiac valve prostheses

A technology for heart valves and prostheses, applied in the fields of heart valves, prostheses, medical science, etc., can solve problems such as left bundle branch obstruction of valve stents, achieve the effects of avoiding conduction bundle block, preventing blockage, and improving accuracy

Active Publication Date: 2014-08-27
SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Another object of the present invention is to provide a heart valve prosthesis, which can solve the problem that the valve stent extends too long into the left ventricle and is prone to left bundle branch obstruction

Method used

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Embodiment Construction

[0031] The present invention will be further described below in combination with specific embodiments. The present invention generally relates to a heart valve prosthesis having a self-expanding stent supporting a heart valve. The self-expanding stent has a proximal region, a middle region and a distal region distributed along the longitudinal direction. When describing the stent of the present invention, the proximal region refers to the region corresponding to the inflow channel of the valve prosthesis, and correspondingly, the distal region refers to the region corresponding to the outflow channel of the valve prosthesis.

[0032] figure 1 A heart valve prosthesis according to an exemplary embodiment of the present invention is shown, specifically an interventional prosthetic aortic valve prosthesis for replacing a diseased aortic valve. The valve prosthesis includes a stent 1 and an aortic valve 3 . The valve 3 is fixed to the inner surface of the stent 1 by, for exampl...

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Abstract

A stent (1) used for a heart valve prosthesis and the heart valve prosthesis that comprises the stent (1) and is used for heart valve replacement. The stent (1) is used for supporting the heart valve (3) and comprises, along a longitudinal axis, an inflow channel (8), an outflow channel (6) and a transition region (7) located between the inflow channel (8) and the outflow channel (6). The stent (1) is provided with a collapsed delivery configuration and an expanded deployment configuration. In the expanded configuration, the inflow channel (8) is provided with a concave structure that matches a petal ring primary structure. Through the concave structure, the stent (1) can implement a self-positioning function and be tightly attached after implantation, preventing a shift and perivalvular leakage from happening

Description

technical field [0001] The present invention generally relates to a heart valve prosthesis for non-surgical heart valve replacement. More specifically, the present invention relates to a valvular prosthesis support that can accurately and closely fit the anatomical structure of the heart so as to be less prone to displacement and prevent paravalvular leakage. Background technique [0002] With the advent of the global aging society, aortic valve disease has become one of the common cardiovascular diseases. In my country, the incidence rate is 2%-5%, and in European and American countries after coronary heart disease and hypertension, it ranks third. Thousands of patients benefit from surgical aortic valve replacement each year, but even in developed countries, a large number of patients with severe aortic valve disease still die due to advanced disease, advanced age, and the presence of multiple comorbidities. Unable to accept surgical treatment, the emergence of percutane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2230/0078A61F2230/008A61F2250/0036A61F2220/0075A61F2230/0067A61F2/2412A61F2210/0014
Inventor 陈国明李雨黄峰黄磊韩建超段轶豪陈韶辉罗七一
Owner SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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