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Kumar et al. Vessel Plus 2019;3:35 I http://dx.doi.org/10.20517/2574-1209.2019.006 Page 3 of 13

Figure 1. Assemble model of stent, balloon, vessel with plaque

Figure 2. Finite element meshed model of stent, vessel, balloon and plaque

and finite element analysis of cardiovascular stent implant to evaluate the radial displacement, stress
distribution, and plastic strain in the proximal area of PEEK 450G biomaterial under pressure load
conditions of 0.8, 1.0, and 1.2 MPa.

METHODS
Finite element analysis
At present there are different coronary stent designs available in the market. In modern days the use of
stents in vascular procedures has speedily increased. In order to improve outcome of the coronary stent
implantation, it is essential to study the biomechanical performance of the stent before manufacturing
and utilized. One of the effective methods used is finite element analysis to study the performance of the
cardiovascular stent to alter the design of the coronary stent and its presentation.

Finite element models
This section covers modeling of different parts used in the study of biomechanical performance of
cardiovascular stents. The modeling of coronary stent, vessel, plaque and balloon are illustrated in Figure 1.
Commercially accessible CATIA V5 software was used for modeling and the IGES file was imported in
HYPERMESH V11.0 for meshing the model. Figure 2 represents the finite element meshed model of stent,
vessel, plaque and balloon.

Cardiovascular stent
In this research article a balloon expandable coronary stent was modeled. To create prime model of
cardiovascular stent, commercially accessible software was used. The modeling of cardiovascular stent
[13]
produced on source of imagery . The stent length = 15 mm, stent outer diameter = 1.915 mm, and stent
thickness = 0.05 mm. The element type used for modeling of stent in ABAQUS as C3D8R (linear 8-noded
solid element). The FE model of the coronary stent contains of 40,852 elements 108,080 nodes.