Stent Design for Compensating Wall Shear Stress via Computational Modeling and Fluid Dynamics

Abstract

Stents are meshed tubes used to treat narrowed or weakened arteries. It is observed that the geometrical change created by a deployed stent may influence regional characteristics and blood flow. Restenosis can occur after the stent deployment due to neointimal proliferation. In this paper a new stent design based on a regular stent was proposed to modify the wall shear stress (WSS) of existing stent design. The fluid flow inside the stent region was then compensated to approach a regular level without disturbance of a stent. Simulation results indicated the possibility to reduce the restenosis of current stent designs.