Development of active bending electric endoscope using shape memory alloy for disposable and thin endoscope

Wataru Makishi; Masaharu Ikeda; Masayoshi Esashi; Tadao Matsunaga; Yoichi Haga

doi:10.1541/ieejsmas.131.102

Development of active bending electric endoscope using shape memory alloy for disposable and thin endoscope

Wataru Makishi, Masaharu Ikeda, Masayoshi Esashi, Tadao Matsunaga, Yoichi Haga

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

Bending motions of the tip of a conventional endoscope are controlled from outside the body by wire traction. A shaft of an endoscope should be relatively hard to avoid buckling by wire traction. The active bending mechanism of an endoscope, which is realized using shape memory alloy (SMA) coil actuators instead of wire traction, is soft. Using micro-fabrication technology on non-planar substrate, cylindrical substrate of thin endoscope was fabricated. These endoscopes enable precise observations and treatments of deep areas of the human body.

Original language	English
Pages (from-to)	102-110+1
Journal	IEEJ Transactions on Sensors and Micromachines
Volume	131
Issue number	3
DOIs	https://doi.org/10.1541/ieejsmas.131.102
Publication status	Published - 2011 Sep 9

Keywords

Active bending mechanism
Electric endoscope
Micro-fabrication Technology on Non-planar Substrate
Optical imager
SMA actuator

ASJC Scopus subject areas

Mechanical Engineering
Electrical and Electronic Engineering

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10.1541/ieejsmas.131.102

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Makishi, W., Ikeda, M., Esashi, M., Matsunaga, T., & Haga, Y. (2011). Development of active bending electric endoscope using shape memory alloy for disposable and thin endoscope. IEEJ Transactions on Sensors and Micromachines, 131(3), 102-110+1. https://doi.org/10.1541/ieejsmas.131.102

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