A split implantable valve device suitable for mitral valve replacement
CN122440366APending Publication Date: 2026-07-24伍源
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 伍源
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Existing monolithic artificial valves are difficult to remove without damage during secondary valve replacement surgery, resulting in high surgical risks and difficult operation, especially causing serious damage to cardiac tissue.
Method used
It adopts a split structure design, with the fixation base and valve assembly being detachably connected. Through the elastic deformation of the valve foot and the mechanical locking of the L-shaped slot, minimally invasive disassembly and secondary fixation can be achieved.
Benefits of technology
It reduces the risk of secondary valve replacement surgery, simplifies the procedure, reduces damage to cardiac tissue, and improves resistance to dislocation and hemodynamic performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122440366A_ABST
Abstract
This invention relates to the field of medical device technology and discloses a split-type implantable valve device suitable for mitral valve replacement, comprising a hollow cylindrical fixation base and a valve assembly partially housed within it. The inner wall of the fixation base has an L-shaped groove; the valve assembly includes three elastic valve feet, with locking blocks on the outer sides of the valve feet that fit the L-shaped groove. During assembly, the locking blocks are lowered along the L-shaped groove and twisted at the bottom to achieve mechanical locking between the valve assembly and the fixation base; during disassembly, the valve feet are retracted and twisted in the opposite direction to separate them. This invention adopts a modular split structure, permanently retaining the fixation base in situ during secondary replacement. The degenerated valve can be completely removed by retracting the valve feet using minimally invasive instruments, avoiding the high-risk operation of dissecting surrounding fibrotic tissue and significantly reducing the trauma of secondary surgery. Furthermore, the accommodative layout design effectively reduces spatial interference and blood flow disturbance to the left ventricular outflow tract.
Need to check novelty before this filing date? Find Prior Art