Optimal design of ball socket on artificial cervical joint complexity by finite element analysis
- VernacularTitle:有限元分析优化设计人工颈椎复合关节系统球窝关节
- Author:
Jiang jun ZHOU
1
;
Wei LEI
1
;
Zi xiang WU
1
;
Ya bo YAN
1
;
Bao jun HAN
1
Author Information
1. Department of Orthopedics, Xijing Hospital, the Fourth Military Medical University
- Publication Type:Journal Article
- Keywords:
Artificial joint;
Finite element analysis;
Computer aided design;
Optimal design;
Cervical joint complexity
- From:
Journal of Medical Biomechanics
2010;25(4):E302-E307
- CountryChina
- Language:Chinese
-
Abstract:
Objective To optimize the design of ball socket of artificial cervical joint complexity. Method A three dimension model of the artificial cervical joint complexity was constructed by the finite element method. The height range of the ball socket handle in the model was set. A simulation was manipulated to optimize the height under the physical load. The stress and strain of the joint complexity with different sizes was analyzed and the systematic safety factor was also evaluated. Results The simulation showed that the maximum Von mises stress appeared at the joint of handle and bottom in the anteflexion position. As the height of the handle increased, the maximum strain increased, and the graph of minimum safety factor was Parabola curve. Conclusions Considering the systematic stability and mobility, when the height of handle is 6 mm, the design of ball socket is considered to be optimal.
