Non Linear Bending Analysis on Stent Materials used as Cardiovascular Implants

Abstract

Cardiovascular disease such as atherosclerosis is one of the most common diseases in modern days which may cause pain and heart attack. Stenting is non surgical method to treat the atherosclerosis. Due to its efficiency and simplicity, the use of coronary stents in interventional procedures has rapidly increased and different stents have been introduced in the market. In order to have better output of the stent implantation, it is needed to analyze the mechanical behavior of this device before manufacturing and utilizing. The aim of this work is to investigate the biomechanical behavior of stent such as non linear bending analysis at different loading conditions by using different biomaterials. One of the most effective methods to investigate the biomechanical behavior of the stent is finite element method. A commercially available finite element package ABAQUS6.10 has been used for the analysis.

Finite element analysis of polyether ether ketone 450G biomaterial used as cardiovascular stent implant

“…Based on numerical data for biomedical stent using PEEK 450G biomaterial the deformation of the stent in terms of bending which is dealt as four different loading cases as shown in Table 2 [16] and also the one end of the stent is fixed in all DOF.…”

“…The third-order strain energy potential for Ogden model is given by the equation: Case-1 1 0 Case-2 2 0.1 radian Case-3 2 0.15 radian Case-4 2 0.25 radian Table 2. Loading cases [16] A B C D…”