Frictional resistance characteristics of a capsule inside the intestine for microendoscope design

被引：47

作者：

Baek, NK ^{[1
]}

Sung, IH ^{[1
]}

Kim, DE ^{[1
]}

机构：

[1] Yonsei Univ, Dept Mech Engn, Seoul 120749, South Korea

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE | 2004年 / 218卷 / H3期

关键词：

capsule endoscope; friction; intestine; viscoelasticity;

D O I：

10.1243/095441104323118914

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The design of the capsule body for a self-propelled endoscope is important from the frictional resistance point of view. The motivation of this work was to gain a better understanding of the effect of capsule shape on the frictional resistance of the capsule inside a small intestine. Special experimental set-ups were built to investigate the frictional resistance of the capsule and the viscoelastic deformation characteristics of the small intestine specimen of a pig. Tests were performed with capsules of various shapes and dimensions. Experimental data showed that a smooth cylindrical capsule geometry resulted in the least frictional resistance due to the shape and relatively small surface area. Also, it was found that the variation of frictional resistance of the capsule was closely related to the local change in the viscoelastic property of the intestine due to the heterogeneity of the internal structure of the intestine.

引用

页码：193 / 201

页数：9

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