Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Design and fabrication of the Locomotive Mechanism for Capsule Endoscopes Using Shape Memory Alloys (SMA)

SMA를 이용한 캡슐 내시경의 이동메커니즘 설계 및 제작

  • 이승학 (한국과학기술연구원 마이크로시스템 연구센터) ;
  • 김병규 (한국과학기술연구원 마이크로시스템 연구센터) ;
  • 박종현 (한양대학교 기계공학부) ;
  • 박종오 (지능형 마이크로시스템개발 사업단)
  • Published : 2003.11.01
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Abstract

Newly commercialized wireless capsule endoscope has many advantages compared to conventional push-type endoscopes. However, it is moved by the peristaltic waves. Therefore, it can not diagnose desired zones actively. In this paper, a locomotive mechanism for wireless capsule endoscope is proposed to increase the efficiency of endoscopy. We designed and fabricated a prototype using SMA springs and bio-mimetic clamping device. The hollow space in the prototype is allocated for further system integration of a camera module, a RF module and a battery. And the sequential control scheme is employed to improve the efficiency of its locomotion. To validate the performance of the locomotive mechanism, experiments on a silicone rubber pad and in vitro tests are carried out. The results of the experiments indicate that proposed mechanism is effective in harsh environments such as digestive organs of a human.

Keywords

References

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