Materials Reports  2019, Vol. 33 Issue (z1): 432-435 |
| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Different Sawtooth Types of Minimally Invasive Vascular Clamp on Vascular Mechanical Properties |
| CUI Haipo1, ZHANG Weidong1, SONG Chengli1, WANG Chengyong2, ZHANG Tao2,3, ZHANG Chunxiao1, CHENG Qianli1
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1 Shanghai Institute for Minimally Invasive Therapy, University of Shanghai for Science and Technology, Shanghai 200093
2 Institute of Manufacturing Technology, Guangdong University of Technology, Guangzhou 510000
3 Institute of Eontech New Materials Co., Ltd., Dongguan 523662 |
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Abstract Based on the finite element analysis software ANSYS, simulation analysis was carried out on the process of clampping the arterywith minimally invasive vascular clamp made of medical stainless steel.The effects of 5 types of sawteeth, inclined, transverse, concave-convex, embedded and symmetrical, on the mechanical properties of artery were studied.The results show that the equivalent stress of the clamped vessel increases with the increase of the inclined angle of the inclined sawtooth during the clamping process. The equivalent stress of the vessel is the smallest for the inclined angle being 0o. For the 3 different transverse sawtoothlengths of 0.20 mm, 0.30 mm and 0.40 mm, the equivalent stress of the vessel is the smallest at 0.20 mm.For 3 kinds of vertical sawteeth, concave-convex, embedded and symmetrical, the equivalent stress of vessel is the smallest when choosing embedded sawtooth.The comprehensive analysis results show that the clamping effect of the embedded sawtooth is the best among the 5 types of sawteeth.
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Published: 05 July 2019
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| About author:: Haipo Cui obtained his Ph.D. degree from Nanjing University of Aeronautics and Astronautics in 2006 and served in University of Shanghai for Science and Technology till now. He is currently a associate professor and master supervisor. He has published more than 70 journal papers, applied 28 national invention patents and 21 of them have been authorized. His research interests focus on the design, preparation and application of biomaterials. |
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