Numerical Simulation on Support Performance of NiTi Alloy Thoracic Aortic Stent
10.16156/j.1004-7220.2020.04.03
- VernacularTitle:镍钛合金胸主动脉支架支撑性能数值模拟
- Author:
Xiangwen CAI
1
;
Qingsong HAN
1
;
Qingxiang ZHANG
1
;
Xiaojuan FENG
1
;
Yu XUE
1
Author Information
1. School of Mechanical Engineering, Inner Mongolia University of Technology
- Publication Type:Journal Article
- Keywords:
thoracic aortic stent;
support performance;
finite element analysis;
mechanical properties
- From:
Journal of Medical Biomechanics
2020;35(4):E410-E414
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the influence of different support heights, support numbers and cross-sectional dimensions on support performance of NiTi thoracic aortic stents. Methods Twenty-seven scaffold models with different parameters were established by using AutoCAD 2016 and SoildWorks 2014 software. HyperMesh 14.0 was used for tetrahedral mesh division, and ABAQUS 2017 was used for support performance simulation analysis. Results With the decrease of support height, the support stiffness would increase; a larger cross-section size would lead to a larger support stiffness; with the increase of support numbers, the support stiffness would increase. Among the influencing factors of support performance, the order of influence degree was support height＞section size＞support numbers. Conclusions The research findings have certain guiding significance for the development and research of thoracic aortic stents, and provide theoretical basis for the selection and optimization of clinical stents.
