【作者】 李国丽； 鞠鲁峰； 王群京； 胡存刚； 张兴； 韩卫星；

【Author】 LI Guo-li1,2 JU Lu-feng 1 WANG Qun-jing1 HU Cun-gang1 ZHANG Xing1, HAN Wei-xing31 School of Electrical Engineering &Automation, Hefei University of Technology, Hefei 230009,China 2 School of Information Engineering , Zhejiang University of Technology, Hangzhou,310014,China 3 Anhui Medical University, Hefei 230032,China

【机构】 合肥工业大学电气与自动化工程学院； 安徽医科大学；

【摘要】 无线内窥镜能够在人体胃肠道内运行,根据动压效应原理,它会在其周围自动形成动压润滑粘液膜,使内窥镜在运行时不与内腔壁发生接触,避免对人体有机组织的损伤。根据人体消化道黏液为具有剪切稀化性的非牛顿流体的实验结论,利用非牛顿流体的Reynolds方程和有限元仿真软件,得到无线螺旋内窥镜在运行时的小肠的等效应力场分布图,说明了无线螺旋内窥镜在肠道内运行的可行性。更多还原

【Abstract】 The wireless endoscope can move in the intestine, prevent the direct contact between the endoscope and intestine tube, and avoids injury to organic tissues with the hydrodynamic mucus film formed by hydrodynamic effect.From experimentation,the gastrointestinal mucus is a kind of non-Newtonian fluid and its apparent viscosity rapidly decreases with the increase of shear rate.Using the soft of finite element,the graph of the VonMises of intestine is obtained during the endoscope moving based on the non-Newtonian Reynolds equation,which proves the feasibility of the wireless spiral endoscope moving in the intestine.更多还原