Artificial heart valve frame, double-layer artificial heart valve frame and artificial heart valve prosthesis

By designing a foldable upper and lower anchoring structure, the problem of high operational difficulty and low success rate caused by excessively long valve stents in existing technologies has been solved. This enables more flexible angle adjustment and stable anchoring, adapting to different access methods and reducing surgical risks.

CN118542758BActive Publication Date: 2026-04-14MITRASSIST LIFESCIENCES LTD
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Patent Information

Application Number
CN202410681033.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2026-04-14
Estimated Expiration
2044-05-29

AI Technical Summary

Technical Problem

In current transcatheter mitral valve replacement surgery, the valve stent is difficult to operate with in the transseptal puncture approach mode. The excessive length of the stent leads to a low success rate and it cannot be adapted to patients with complex anatomy or limited space.

Method used

Design an artificial heart valve stent comprising an upper anchoring structure and a lower anchoring structure. In the radial contraction state, the upper anchoring structure folds downward and the lower anchoring structure folds upward, shortening the axial length, facilitating angle adjustment and anchoring to the valve annulus, and adapting to different access patterns.

Benefits of technology

This reduces the difficulty of the surgical procedure, minimizes damage to the patient's tissues, improves the success rate and adaptability of the surgery, and ensures the stable anchoring and functional support of the artificial heart valve.

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Abstract

The present application relates to the field of medical devices, and provides an artificial heart valve frame, a double-layer artificial heart valve frame and an artificial heart valve prosthesis, comprising a framework, an upper anchoring structure and a lower anchoring structure, the framework comprises a valve frame main body, the upper anchoring structure is connected with the upper end of the framework and extends to the outside of the valve frame main body; the lower anchoring structure is connected with the lower end of the framework and extends to the outside of the valve frame main body. When the artificial heart valve frame changes to a radial contraction state, the upper anchoring structure elastically folds in the direction of downward and close to the valve frame main body; the lower anchoring structure elastically folds in the direction of upward and close to the valve frame main body. The present application alleviates the technical problem that the length of the existing valve frame is relatively long after compression, which affects the success rate of operation and the operability of the transseptal puncture approach mode for operation, and at the same time, the surgical risk can be reduced.
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