期刊
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
卷 48, 期 1, 页码 97-102出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11517-009-0553-x
关键词
Capsule endoscope; Electrical stimulus; Stopping; Small intestine
类别
资金
- Ministry of Knowledge Economy [10031779]
- Grant of the Korean Ministry of Education, Science and Technology
An ingestible capsule, which has the ability to stop at certain locations in the small intestine, was designed and implemented to monitor intestinal diseases. The proposed capsule can contract the small intestine by using electrical stimuli; this contraction causes the capsule to stop when the maximum static frictional force (MSFF) is larger than the force of natural peristalsis. In vitro experiments were carried out to verify the feasibility of the capsule, and the results showed that the capsule was successfully stopped in the small intestine. Various electrodes and electrical stimulus parameters were determined on the basis of the MSFF. A moderate increment of the MSFF (12.7 +/- 4.6 gf at 5 V, 10 Hz, and 5 ms) and the maximum increment of the MSFF (56.5 +/- 9.77 gf at 20 V, 10 Hz, and 5 ms) were obtained, and it is sufficient force to stop the capsule.
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