Valve prosthesis

By using the spacing between the inner and outer stent layers and the connection of elastic components, the problem of excessive compression of the valve leaflets during cardiac motion is solved, thus improving the structural stability of the valve prosthesis and the protection of the valve leaflet assembly.

CN119302780BActive Publication Date: 2025-11-18SHENZHEN LIFEVALVE MEDICAL SCI CO LTD
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Patent Information

Application Number
CN202310874874.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-14
Publication Date
2025-11-18
Estimated Expiration
2043-07-14

AI Technical Summary

Technical Problem

In existing valve prostheses, the leaflets inside the valve prosthesis are easily deformed by excessive compression during the movement of the heart, leading to structural damage.

Method used

By using an alternating arrangement of inner and outer supports, combined with the connection method of elastic elements, there is a certain deformation space between the outer and inner supports. The elastic elements counteract the deformation force of the outer supports through elastic deformation, thereby reducing stress concentration at the connection nodes.

Benefits of technology

It reduces the risk of fracture at the connection point between the outer and inner stents, improves the structural stability and radial support of the valve prosthesis, and reduces the impact of leaflet assembly deformation.

✦ Generated by Eureka AI based on patent content.
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Abstract

The application discloses a valve prosthesis, which comprises an inner layer support, an outer layer support and an elastic piece. The inner layer support is arranged in the outer layer support and connected with the outer layer support. The two ends of the elastic piece are connected with the outer layer support and the inner layer support respectively. The inflow end of the inner layer support and the outflow end of the outer layer support are connected, and the inner wall of the outer layer support and the outer wall of the inner layer support are arranged at intervals, so that a certain deformation space is formed between the outer layer support and the inner layer support. Therefore, when the outer layer support is extruded and deformed, the outer layer support can be deformed in the deformation space, and the probability that the leaflet assembly is affected by the extrusion of the outer layer support on the inner layer support is reduced.
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