Helical motion and 2D locomotion of magnetic capsule endoscope using precessional and gradient magnetic field

Cheong Lee, Hyunchul Choi, Gwangjun Go, Hernando Leon-Rodriguez, Semi Jeong, Kiduk Kwon, Seong Young Ko, Jong Oh Park, Sukho Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Recently, a conventional capsule endoscope was developed and has been used for a diagnosis to make up for the limitations of conventional flexible endoscopy. However, the capsule endoscope has also some limitations and low diagnostic effectiveness because of its passive movement through the peristaltic motion of digestive organs. To overcome these problems, there are several researches about active mobility of capsule endoscope. In this paper, we proposed helical motion and locomotion mechanism for magnetic capsule endoscope using the electromagnetic actuation (EMA) system. Through the combination of the magnetization direction of the capsule endoscope prototype and the precessional magnetic field which can be generated by 3-pairs of Helmholtz coils, the capsule endoscope prototype can show a precessional motion. In addition, the capsule endoscope prototype can move toward an aligned direction by a gradient magnetic field of Maxwell coils. First, we fabricated a capsule endoscope prototype with a desired magnetization direction and verified its scanning function through the helical motion of the capsule endoscope prototype in mock-up of tubular digestive organs. Second, the capsule endoscope prototype also has a propulsion force to the perpendicular direction of axial vector when it track the helical path, and this force make the capsule endoscope prototype to attach the inner wall of tubular environment. Finally, through the planar locomotion test in stomach phantom, we have verified the feasibility of the capsule endoscope using an electromagnetic actuation system.

Original languageEnglish
Title of host publication"2014 5th IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2014
EditorsRaffaella Carloni, Lorenzo Masia, Jose Maria Sabater-Navarro, Marko Ackermann, Sunil Agrawal, Arash Ajoudani, Panagiotis Artemiadis, Matteo Bianchi, Antonio Padilha Lanari Bo, Maura Casadio, Kevin Cleary, Ashish Deshpande, Domenico Formica, Matteo Fumagalli, Nicolas Garcia-Aracil, Sasha Blue Godfrey, Islam S.M. Khalil, Olivier Lambercy, Rui C. V. Loureiro, Leonardo Mattos, Victor Munoz, Hyung-Soon Park, Luis Eduardo Rodriguez Cheu, Roque Saltaren, Adriano A. G. Siqueira, Valentina Squeri, Arno H.A. Stienen, Nikolaos Tsagarakis, Herman Van der Kooij, Bram Vanderborght, Nicola Vitiello, Jose Zariffa, Loredana Zollo
PublisherIEEE Computer Society
Pages1063-1067
Number of pages5
ISBN (Electronic)9781479931262
DOIs
StatePublished - 30 Sep 2014
Event5th IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2014 - Sao Paulo, Brazil
Duration: 12 Aug 201415 Aug 2014

Publication series

NameProceedings of the IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics
ISSN (Print)2155-1774

Conference

Conference5th IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2014
Country/TerritoryBrazil
CitySao Paulo
Period12/08/1415/08/14

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