Finite element model and computational fluid dynamic analysis of hyperelastic Ti-Ni alloy stent
- VernacularTitle:血管内超弹性TiNi合金支架的有限元模型及流体动力学计算分析
- Author:
Shu CHEN
;
Hongliang LIU
;
Zhiqiang ZHANG
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2007;0(26):-
- CountryChina
- Language:Chinese
-
Abstract:
Vascular Ti-Ni alloy stent which has the special shape memory and superelastic was analyzed about the effect on interaction with plaque and vessels and blood flow using finite element method(FEM) with COSMOS Works and computational fluid dynamics(CFD) with COSMOS FloWorks.The results showed that COSMOS could exactly simulate the hyperelasticity of Ti-Ni alloy stent;shape memory could cause great compliance of vessels but not easily damage vascular wall;the hyperelasticity might cause stronger supporting force to properly shorten length of supporting tendon so as to increase the supporting force of the stent;the compliance was beneficial for blood circulation and decrease incidence of vascular restenosis.
