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[Review of the active locomotion system for capsule endoscope]
Dechun Zhao1, Yijun Guo, Chenglin Peng
1College of Bi-information, Chongqing University of Posts and Telecommunications, Chongqing 400065, China. zdchl@yahoo.com.cn
Abstract:
This review summarized the progress of researches on the active locomotion system for capsule endoscope, analyzed the moving and controlling principles in different locomotion systems, and compared their merits and shortcomings. Owing to the complexity of human intestines and the limits to the size and consumption of locomotion system from the capsule endoscope, there is not yet one kind of active locomotion system currently used in clinical practice. The locomotive system driven by an outer rotational magnetic field could improve the commercial endoscope capsule, while its magnetic field controlling moving is complex. Active locomotion system driven by shape memory alloys will be the orientated development and the point of research in the future.
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