Vascular stent is a small tubular device expanded into stenotic artery to restore natural blood flow. This paper introduces application background and research overview of medical vascular stent. A tubular mini stent was specially designed and manufactured for the small diameter coronary vessels. A computational and experimental method of research on biomechanics of vascular stent was presented. Computational simulation of stent deployment expanded by the balloon based on nonlinear finite element analysis was performed including large displacement and deformation, geometric and material nonlinearity. The experimental platform of in vitro stent expansion based on the machine vision technology was established and the image processing software was developed. The fabricated stent was tested on the assembled experimental equipments. Matching between the computational and experimental results was quite satisfactory. The experimental scheme provides powerful support for the computational analysis of stent biomechanics.
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- Computational Biomechanics and Experimental Verification of Vascular Stent
- Springer Berlin Heidelberg