Existing Stent Design Under Combined Loading: An Investigation research

Abstract

Intravascular stents are little tube-like structures ventured into stenotic arteries to reestablish blood stream perfusion to the downstream tissues. Surgical procedure effectiveness could be defined by stent expansion. Stent geometry plays an important part includes material, non-linearity, deformations, geometric and large displacements. Complex behaviour must solve with numerical analyses after free stent expansion. New stent designs and the previously approved stent or often called stent versus stent are the type of randomized trials to compare the superiority of the stent. However, cost and difficulty limited the clinical trials. This paper explained the analysis of the six finite element models to find out the effect of different geometry of the stent design after coronary stent placement. Six commercially available stents (NIR, Multi-Link, AVE S7, Bx Velocity, SMART and Palmaz stents) were modelled and their conduct during the arrangement is looked at as far as stress distribution  and external diameter changes. Finite element analysis (FEA) was used in this study and applied to the new generation coronary stent. Results from simulations were compared with those from the previous study.