Korean J Med Phys.  2009 Sep;20(3):139-144.

The Verification of Computer Simulation of Nitinol Wire Stent Using Finite Element Analysis

• Kim JY
• Jung WG
• Jeon DM
• Shin IG
• Kim HK
• Shin DO
• Kim SH
• Suh TS

Abstract

Recently, the mathematical analysis of stent simulation has been improved, with the help of development of various tool which measure mechanical property and location of stent in artery. The most crucial part of the stent modeling is how to design ideal stent and to evaluate the interaction between stent and artery. While there has been great deal of researches on the evaluation of the expansion, stress distribution, deformation of the stent in terms of the various parameters, few verification through computer simulation has been performed about deformation and stress distribution of the stent. In this study, we have produced the corresponding results between experimental test using Universal Testing Machine and computer simulation for the ideal model of stent. Also, we have analyzed and compared stress distribution of stent in the cases of that with membrane and that without membrane. The results of this study would provide minimum change of plan and good quality for ideal stent replacing damaged artery through the analysis using computer simulation in the early stage of stent design.

Keyword

Finite element method, Stent; Computer simulation; Stress test; Nitinol

MeSH Terms

Alloys
Arteries
Collodion
Computer Simulation
Exercise Test
Finite Element Analysis
Membranes
Stents
Alloys
Collodion