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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1, Number 5, May 2009

Issue on Mechanical Engineering

Page(s): 141-144

Rehabilitation of Artery Revascularization through a Stent Insertion

Sanjay A. Pujari, V.R.Udupi

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Abstract

In this paper, results are presented of nonlinear finite element simulations performed to analyze the interactions between the stent and the plaque of marginal artery using finite element method. The post-expansion response of the stent in the presence of the plaque and artery was also investigated. The analysis was performed using finite element packages ANSYS (version 10) as pre and postprocessor. The stent was subject to a pressure load applied on the inner surface of the balloon. Then the stent expands and presses the plaque against the arterial wall. A bi-linear elastic-plastic and hyper elastic material models were assumed for the stent and the balloons, respectively. The material models used for the plaque and arterial wall were defined as linear isotropic and nearly incompressible. The deformation characteristics of the stent were analyzed. The stresses in the plaque and artery due to the interference of stent were discussed.

Index Terms

Balloon; Artery; Stent; Plaque; Simulation

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