Development of Active Bending Electric Endoscope Using Shape Memory Alloy for Disposable and Thin Endoscope

• Makishi Wataru

  Graduate School of Engineering, Tohoku University

• Ikeda Masaharu

  Graduate School of Engineering, Tohoku University

• Esashi Masayoshi

  Tohoku University Advanced Institute for Materials Research (WPI-AIMR)

• Matsunaga Tadao

  Graduate School of Biomedical Engineering, Tohoku University

• Haga Yoichi

  Graduate School of Biomedical Engineering, Tohoku University

Bibliographic Information

Other Title

• 使い捨て化と細径化を目指した形状記憶合金を用いた能動屈曲電子内視鏡の開発
• ツカイ ステ カ ト サイケイカ オ メザシタ ケイジョウ キオク ゴウキン オ モチイタ ノウドウ クッキョク デンシ ナイシキョウ ノ カイハツ

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.

Journal

• IEEJ Transactions on Sensors and Micromachines

  IEEJ Transactions on Sensors and Micromachines 131 (3), 102-110, 2011

  The Institute of Electrical Engineers of Japan

Keywords

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

Details

• CRID: 1390282679437696384
• NII Article ID: 10027805294
• NII Book ID: AN1052634X
• DOI: 10.1541/ieejsmas.131.102
• ISSN: 13475525
• ISSN: 13418939
• NDL BIB ID: 10985685
• Web Site: http://id.ndl.go.jp/bib/10985685
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10985685
• Web Site: http://www.jstage.jst.go.jp/article/ieejsmas/131/3/131_3_102/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed