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Magnetic Actuator for a Capsule Endoscope Navigation System
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  • Magnetic Actuator for a Capsule Endoscope Navigation System
  • Magnetic Actuator for a Capsule Endoscope Navigation System
저자명
Chiba. Atsushi,Sendoh. Masahiko,Ishiyama. Kazushi,Arai. Ken Ichi,Kawano. Hironao,Uchiyama. Akio,Takizawa. Hironobu
간행물명
Journal of magnetics
권/호정보
2007년|12권 2호|pp.89-92 (4 pages)
발행정보
한국자기학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The authors propose a magnetic actuator for use as a navigation system for capsule endoscopes. The actuator is composed of a capsule dummy, a permanent magnet inside the capsule, and an external spiral structure. The device rotates and propels wirelessly when exposed to an external rotational magnetic field. In this study we measured the effect of the spiral shape on the velocity and thrust force properties. According to our experimental results, the actuator obtained a maximum velocity and thrust force when the spiral angle was set at 45 degrees, the number of spirals was set at 4, and the spiral-height was set at 1-mmf. We also conducted a motion test in the large intestine of a pig placed on a 30 degrees slope. The actuator passed through a 700 mm length of the intestine in about 300 s. The device also managed to travel up and down the 30 degrees slope with no difficulty whatsoever. Our results demonstrate the great potential of this actuator for use as a navigation system for capsule endoscopes.