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COMPUTATIONAL MODELING AND ANALYSIS TO INVESTIGATE AND COMPARE THE MECHANICAL BEHAVIOR OF VARIOUS STENT DESIGNS USING FINITE ELEMENT METHOD
Hashim V, Dileep PN, Srinath P, Rahul NR, Mufaz FB, Ajoy U

Published in: International Journal of Current Engineering And Scientific Research ( IJCESR)
Volume- 4, Issue-9, pp.9-16, Sep 2017
DPI :-> 16.10046.IJCESR.2017.V4I9.916.1955



Abstract
The most prevalent health problem is coronary artery diseases which may cause pain and heart attack. Coronary stents are tubular, often mesh-like, structures which are deployed in diseased artery segments to provide a scaffolding feature that compresses artheromatus plaque, hence restoring luminal area and blood flow resumes as usual. Stent implantation is non-surgical method to treat the coronary artery diseases that can support arterial wall and reduce the risk of heart attack. To improve these coronary revascularization procedures the optimal strategy lies in the further development of stent design, material and coatings. In context of optimizing the stent design, computational models plays an important role. In the present paper, the finite element method (FEM) was applied to simulate the transient expansion process of stent and balloon system. To study the characteristics of stent geometry four different stent designs are modeled and analyzed with same internal pressure, material property and boundary conditions. The stress stain values were compared and the best design was identified in terms of stress and strain. The selected design is again analyzed with variable inflating pressures to get the exact pressure for a radial expansion of 1 mm. Finally the selected stents were analyzed under more realistic conditions (considering plaque and artery wall together with balloon and stent) to realize the pressure requirement in the real situation.

Key-Words / Index Term
Coronary stents; Restenosis; FE analysis; Stent design

How to cite this article
Hashim V, Dileep PN, Srinath P, Rahul NR, Mufaz FB, Ajoy U , “COMPUTATIONAL MODELING AND ANALYSIS TO INVESTIGATE AND COMPARE THE MECHANICAL BEHAVIOR OF VARIOUS STENT DESIGNS USING FINITE ELEMENT METHOD”, International Journal of Current Engineering And Scientific Research ( IJCESR), 4, Issue-9, pp.9-16, Sep 2017. DPI:16.10046.IJCESR.V4.I9.1955