Bone defect transplantation stent
By designing a bone defect graft scaffold, and utilizing a combination of a titanium alloy outer tube and a polylactic acid inner support, the problem of unstable graft fixation was solved, achieving reliable graft fixation and promoting bone healing, while reducing the amount of filling and lowering the risk of stress shielding.
CN224235603UActive Publication Date: 2026-05-15BEIJING NATON INST OF MEDICAL TECH CO LTD
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202520124684.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Technical Problem
In the treatment of large segmental bone defects, the problem of graft sinking due to insecure fixation can occur.
Method used
The bone defect grafting scaffold consists of an outer tube and an inner support. The outer tube is made of titanium alloy, and the inner support is made of polylactic acid. A ring-shaped cavity is formed between the inner and outer tubes. Multiple support plates are installed in the inner support to enhance the fixation effect, and the fixation is achieved through the inner channel of the inner tube in conjunction with an intramedullary nail.
Benefits of technology
It improves the fixation reliability of grafts, reduces the amount of graft filling, promotes bone healing, shortens healing time, and reduces the occurrence of stress shielding.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model belongs to the technical field of medical instruments, and particularly discloses a bone defect transplantation support. The bone defect transplantation stent comprises an outer tube body and an inner supporting piece, and the outer tube body extends from one end to the other end; the inner supporting piece is arranged in the outer pipe body and comprises an inner pipe body and a first supporting plate, the extending direction of the inner pipe body is consistent with that of the outer pipe body, an annular containing cavity is formed between the outer wall of the inner pipe body and the inner wall of the outer pipe body, and the first supporting plate is arranged in the containing cavity and connected with the inner pipe body. An included angle is formed between the extending direction of the first supporting plate and the extending direction of the inner pipe body. According to the utility model, the graft can be reliably fixed, and the filling amount of the graft is reduced.
Need to check novelty before this filing date? Find Prior Art