Heart valve

A technology of heart valves and leaflets, which is applied in the fields of heart valves, medical science, and prostheses, and can solve problems such as low support force of artificial heart valve stents, large sheathing force, and central reflux of valve leaflet regurgitation.

Active Publication Date: 2019-04-02
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, there is the danger that the support force of the artificial heart valve stent is too low, so that the stent does not have a good radial reaction force against the blood pressure
At the same time, the sheathing force of the artificial heart valve stent is too large, resulting in greater resistance when the artificial heart valve stent enters the sheath, which affects the delivery and release process of the heart valve stent
The support force of the aortic valve stent is too small, resulting in changes in the distance between each valve leaflet, resulting in limited opening and closing function of some valve leaflets, and eventually forming central regurgitation or open stenosis of the valve leaflets

Method used

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Embodiment Construction

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

[0035] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "far," "near," and similar expressions are used herein for pu...

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Abstract

The invention relates to a heart valve. The heart valve comprises a stent and a connecting piece; the stent comprises a valve leaflet stent and a plurality of connecting rods; the valve leaflet stentcomprises a first end and a second end opposite to the first end; one end of each connecting rod is fixedly connected with the second end of the valve leaflet stent; the connecting rods are uniformlydistributed along the second end, and the other end of each connecting rod far away from the second end is connected with the connecting piece; the angles between the straight lines from the connection points of the connecting rods and the valve leaflet stent to the connection points of the connecting rods and the connecting piece and the axis line of the valve leaflet stent are the angles of theconnecting rods, and range from 40 to 60 DEG. The heart valve is capable of giving consideration on both invagination force and valve leaflet stent strength.

Description

technical field [0001] The invention relates to a medical device, in particular to a heart valve. Background technique [0002] Heart valve disease is a very common heart disease, among which valve damage caused by rheumatic fever is one of the most common causes. With the aging of the population, senile valvular disease and valvular disease caused by coronary heart disease and myocardial infarction are becoming more and more common. These valvular lesions not only endanger life safety and affect the quality of life, but also bring heavy burden and pressure to families and society. The human heart is divided into four chambers: the left atrium, the left ventricle, the right atrium, and the right ventricle. The two atria are connected to the two ventricles, and the two ventricles are connected to the two great arteries. Heart valves grow between the atrium and ventricle, between the ventricle and the aorta, and act as one-way valves to help blood flow in one direction. The...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418A61F2/2436
Inventor 蒋坤刘香东姚斌周涵
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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