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Artificial heart valve prosthesis and artificial heart valve stent

A technology of artificial heart valves and artificial valves, applied in the fields of heart valves, prostheses, medical science, etc., can solve the problems of large damage risk, easy displacement of prosthetic valves, etc., to improve the service life of valve leaflets, reduce subvalvular height, The effect of preventing paravalvular leakage

Pending Publication Date: 2020-04-21
SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The technical problem to be solved by the present invention is to provide an artificial heart valve prosthesis and its support, aiming to solve the problems of greater risk of damage to the subvalvular structure of the original valve assembly and easy displacement of the prosthetic valve

Method used

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  • Artificial heart valve prosthesis and artificial heart valve stent
  • Artificial heart valve prosthesis and artificial heart valve stent
  • Artificial heart valve prosthesis and artificial heart valve stent

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Embodiment Construction

[0052] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that the present invention may be practiced without these specific details. Therefore, the specific details set forth are merely exemplary, and specific details may be varied in the spirit and scope of the invention and still be considered to be within the spirit and scope of the invention.

[0053] The present invention provides an artificial heart valve prosthesis (also called "prosthetic valve") implanted through a catheter, which is used to replace a heart valve, mainly a mitral valve or a tricuspid valve, including an artificial heart valve stent. The artificial heart valve stent is a double-layer stent. The inner stent has strong rigidity and can withstand the pulling force of the prosthetic valve leaflets; the outer stent is relatively weak and fits with the o...

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Abstract

The invention discloses an artificial heart valve prosthesis and an artificial heart valve stent. The artificial heart valve stent comprises an outer-layer bracket and an inner-layer bracket, whereinthe inner-layer bracket is fixedly connected with the outer-layer bracket, the outer-layer bracket is provided with an outer-layer inflow channel structure and an outer-layer outflow channel structure, the outer-layer inflow channel structure and the outer-layer outflow channel structure are axially connected, the inner-layer bracket is provided with an inner-layer inflow channel structure and aninner-layer outflow channel structure and is located on the inner side of the outer-layer bracket in the radial direction, the inner-layer inflow channel structure and the inner-layer outflow channelstructure are connected in the axial direction, and an anchoring structure is arranged on the outer side of the inner-layer bracket. According to the artificial heart valve prosthesis and the artificial heart valve stent, the inner-layer bracket bears the artificial valve leaflet, and is high in rigidity and small in diameter, so that the area of the artificial valve leaflet can be reduced, the height required by the opening and closing movement of the valve leaflet is reduced, and the service life of the valve leaflet is prolonged; the outer-layer bracket is weak in relative rigidity, large in diameter and capable of preventing perivalvular leakage; and the anchoring structure is connected with the inner-layer bracket, and the anchoring force for preventing the prosthetic valve from moving is mainly borne by the inner-layer bracket with high rigidity, so that the service life of the stent is prolonged.

Description

technical field [0001] The invention relates to an interventional medical prosthesis, in particular to an artificial heart valve prosthesis and its support. 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 a ventricular inflow tract structure, the left ventricle and aorta form a left ventricular outflow tract structure, and the right ventricle and pulmonary artery form a right ventricular outflow tract structure. There are valves with the function of "one-way valve" at the structure of the ventricular inflow tract and the structure of the ventricular outflow tract to ensure the normal flow of blood in the heart chamber. When there is a problem with this valve, the hemodynamics of the heart are altered and the heart functions abnormally, which is called valvular heart disease. [0003] With...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418A61F2/246A61F2/2463A61F2220/0025
Inventor 赵春霞冒鹏志阳明陈国明李雨
Owner SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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