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small intestinal model for electrically propelled capsule endoscopy为电力驱动的胶囊内镜小肠模型
Woo et al. BioMedical Engineering OnLine 2011, 10:108 /content/10/1/108 RESEARCH Open Access Small intestinal model for electrically propelled capsule endoscopy 1* 2 3 4 1 Sang Hyo Woo , Tae Wan Kim , Zia Mohy-Ud-Din , Il Yong Park and Jin-Ho Cho * Correspondence: Abstract wgundan@ 1Department of Elec. Eng. and The aim of this research is to propose a small intestine model for electrically Computer Science, Kyungpook propelled capsule endoscopy. The electrical stimulus can cause contraction of the National Univ., Daegu, South Korea Full list of author information is small intestine and propel the capsule along the lumen. The proposed model available at the end of the article considered the drag and friction from the small intestine using a thin walled model and Stokes’ drag equation. Further, contraction force from the small intestine was modeled by using regression analysis. From the proposed model, the acceleration and velocity of various exterior shapes of capsule were calculated, and two exterior shapes of capsules were proposed based on the internal volume of the capsules. The proposed capsules were fabricated and animal experiments were conducted. One of the proposed capsules showed an average (SD) velocity in forward direction of 2.91 ± 0.99 mm/s and 2.23 ± 0.78 mm/s in the backward direction, which was 5.2 times faster than that obtained in previous research. The proposed mod
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