一种基于应力场驱动的半月板支架3D打印方法及系统
By using a stress field-driven path planning method to optimize the matching of fiber arrangement with the mechanical environment, the problem of poor mechanical performance of existing 3D printed meniscus scaffolds is solved, and higher biomechanical functional adaptability and load-bearing stability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing 3D printing methods for manufacturing meniscus stents result in a mismatch between fiber arrangement and stress distribution under actual physiological loads, leading to poor mechanical properties, stress concentration, weak interface buffering capacity, and difficulty in meeting post-implantation functional requirements.
A stress field-driven path planning method is adopted. The stress field data of the meniscus is obtained through finite element analysis, an optimized two-dimensional principal stress direction field is constructed, and stress streamline trajectories are generated through staggered fiber placement strategy to ensure that the fiber arrangement is consistent with the mechanical environment and generate a continuous printing path.
It improves the biomechanical adaptability and service life of the meniscus stent, enhances structural integrity and load-bearing stability, reduces local stress concentration, and improves interface buffering capacity.
Smart Images
Figure CN122034333B_ABST