| Summary: | 碩士 === 國立高雄應用科技大學 === 模具工程系碩士班 === 101 === Cardiovascular disease is one of common sickness and a serious threat to all mankind life. However, the Vascular stent surgery is one of common ways to use the treatment for vascular obstruction. Therefore, the application of computer technology combined with the finite element method to the stent design and study process are indispensable tools. There is no comprehensive and effective way to the planar stent design and simulation so far. Therefore, deformation simulations of the planar stent are investigated in the thesis. It has been shown that stent expansion to the target size of the maximum equivalent stress is less than the maximum tensile strength. It is still within the safe range based on von Mises theory. In order to enhance the function of plane stent, this study designs a new plane stent in order to enhance radial strength and the ability of expansion. The results show that, the expansion rate improved from 38 % to 60%. Metal coverage rate is improved from 18.7% to 31.1%. The metal coverage ratio is a key factor of radial strength.
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