Design and Analysis of Balloon-expandable Stainless Steel Coronary Stent
Abstract
This thesis uses “Volume Control†ballon-stent model, and according to results of deformation of a stent and vascular during implantation, we obtain the stress contours of the stent during implantation. The results conclude by ANSYS simulation show that during the implantation process, expansion of balloon body will make the narrow part of the blood wall fragment tough. After placement of the stent, due to blood flow in vessel makes that the inner wall of blood vessels has uneven distribution of shear stress; And, in the vicinity of the stent structure, it has a lower [7] shear stress to vessel wall. During the expansion of the stent, the maximum principal stress concentrate on the connection between coronary stent itself and stiffeners.
References
2.Dumoulin C, Cochelin B. Mechanical behaviour modelling of balloon-expandable stems. Journal of Biomechanics, 2000, 33:1461-1470.
3.Rogers C, Tseng D Y, Squire J C et al. Balloon-Artery Interactions During Stent Placement: A Finite Element Analysis Approach to Pressure, Compliance, and Stent Design as Contributors to Vascular Injury. Circulation Research, 1999, 84:378-383.
4.Takashima K, Kitou T, Mori K et al. Simulation and experimental observation of contact conditions between stents and artery models. Medical Engineering & Physics, 2007,29(3):326-335.
5.Wang Weiqiang. Yang Dazhi, Qi-Min, Finite Element Analysis of Coranary Stent Anti Compression Property 2006, 23(5): 1008-1012. [J] Bio-medical Engineering Journal.
6.Wu Wei, Finite Element Analysis and Structure Topological optimization of Human Body Intravascular stent [D][D] Dalian University of Technology, 2007.1-150.
7.Li Hongxia, Wang Xicheng, Hemodynamics in The Narrow Vascular Implemented Stent and Simulation of Action of Bloodstream to Vascular Wall[C]// Chinese Society of Theoretical and Applied Mechanics 2009Abstract of thesis.2009.
8.Ge Junbo, Liu Xuebo, Recognition of Drug Eluting Stent and Restenosis Machine-made. China Angiocardiopathy Journal 2006, 33(8):681-683.
9.Experimental medicine and its initial applications in man. Acta Medica Scandinavica. Supplementum 1975, 579:3-32.
10.Seldinger. Catheler replacement of the needle in percutanωus arteriography; a new technique.
11.Serruys P W, transluminal angioplasty. New England Journal of Medicine, 1987,316: 701-706.
12.Zhao Zhenxin, Liu Daozhi, Sun Kang etc. Nitinol Introvascular Stent Finite Element Analysis and Fatigue Test [J][J]. China Medical Apparatus and Instruments, 2008, 32(5): 373-376.
13.Chen Xidong, Yang Jie, Zhao Xiao-dong, Finite Element Analysis Development State and Application [J]. China Informatization of Manufacturing Industry; Academic Edition 2010 (6): 6-8.
14.Zhu Aiping, Chen Jian, Research Progress of Intravascular Stent. Biomedical Engineering Journal2010 (6): 6-8.
Copyright (c) 2017 Xiaolin Pan, Gengqiang Shi, Yuan Li, Shanshan Wu, Long Chen
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