An intramedullary nail with adjustable curvature
By designing a universal ball joint structure and traction linkage components, the spatial curvature adjustment and shape locking of the intramedullary nail are achieved, solving the problem of adapting the existing intramedullary nail to irregular bones, simplifying the operation process, and improving fixation stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing intramedullary nails cannot achieve 360° spatial curvature adjustment, making it difficult to adapt to the physiological curvature of irregular bones. Furthermore, the adjustment and locking operations are cumbersome, increasing the difficulty of surgery and the risk of complications.
An adjustable-curvature intramedullary nail is used, and the spatial curvature adjustment and shape locking of the intramedullary nail are achieved through a universal ball joint structure and traction linkage component. The shape locking component and the traction linkage component are integrated to form a linkage, simplifying the operation process.
It achieves precise fit between the intramedullary nail and irregular bone, reduces fracture reduction deviation and postoperative complication risk, simplifies surgical procedures, and improves fixation stability and safety.
Smart Images

Figure CN122398435A_ABST