Heart valve prosthesis capable of being anchored with autologous valve leaflets

Abstract

The invention relates to the field of medical instruments, in particular to a heart valve prosthesis capable of being anchored with autologous valve leaflets. The heart valve prosthesis comprises: a valve stent with a preset form; a clamping mechanism which has a preset form, wherein the near end of the clamping mechanism is connected with the valve stent, and at least part of the clamping mechanism is attached to the outer side of the valve stent; and an anchoring ring which is connected with the far end of the clamping mechanism in a matched mode, wherein when the clamping mechanism is released, the clamping mechanism is located on the periphery of the autologous valve leaflet, the anchoring ring surrounds the autologous valve leaflet, and when the valve stent is released, the clamping mechanism is attached to the valve stent, and the valve stent supports the anchoring ring in the radial direction. In addition, the anchoring ring in the scheme can curl part of the autologous valve leaflet, the influence of original valve leaflet tissue on blood flow after replacement is reduced, the two technical pain points about mitral valve replacement therapy in the prior art are solved, and good clinical significance is achieved.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a heart valve prosthesis that can be anchored with a native valve leaflet. Background technique [0002] From the perspective of heart structure, both the mitral valve and the tricuspid valve have a special physiological structure, which makes it very difficult to accurately position and fix the product. In particular, the position of the mitral valve in the heart and its complex anatomical structure bring great challenges to mitral valve replacement. [0003] Most of the technical methods of anchoring in the prior art use the radial support force of the stent to the atrioventricular annulus. The disadvantage of this technique is that it is easy to cause compression on the tissue around the valve annulus, and it is easy to cause the impact of the stent and the compressed tissue on the outflow tract. In the long run, as the regurgitation decreases, the ventricular and at...

AI Technical Summary

Problems solved by technology

[0010] In terms of the application of atrioventricular valve surgery, this application aims to provide a heart valve prosthesis that can be anchored with the native valve leaflets for patients with atrioventricular valve disease and needs interventional therapy, so as to solve the problem of heart valve prosthesis in the prior art. The replacement system causes compression on the native valve annulus and valve leaflets block the outflow tract and other problems

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