heart valve
A heart valve and valve leaflet technology, applied in heart valve, medical science, prosthesis, etc., can solve problems such as low support force of artificial heart valve stent, large sheath insertion force, central regurgitation of valve leaflet insufficiency, etc.
Active Publication Date: 2021-11-02
LIFETECH SCI (SHENZHEN) CO LTD
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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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[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. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[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 expressi...
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The present invention relates to a heart valve. A heart valve includes a bracket and a connecting piece, the bracket includes a leaflet bracket and a connecting rod, the leaflet bracket has a first end and a second end opposite to the first end, one end of the connecting rod is connected to the The second end of the leaflet bracket is fixedly connected, and the connecting rods are multiple and evenly distributed along the second end, and the ends of the multiple connecting rods away from the second end are all connected to the connecting piece, so The angle between the line defined by the connection point between the connecting rod and the leaflet support and the connection point between the connecting rod and the connecting piece and the axis of the leaflet support is the angle of the connecting rod. The angle of the rod is 40°~60°. The above-mentioned heart valve can take into account both the sheathing force and the strength of the leaflet support.
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...
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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 SCI (SHENZHEN) CO LTD