Abstract
In order to measure the location of medical micro-devices in the gastrointestinal tract, electromagnetic methods were developed considering the magnetic permeability of human bodies. Two varieties of electromagnetic localization methods have been implemented: one uses direct current(DC) to generate the electromagnetic field, and the other uses alternating current (AC). The two varieties of the localization principle were analyzed and relevant experiments were made. The experiments show that the alternating electromagnetic method acquires higher accuracy, higher stability and wider measurement range.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Iddan G, Meron G, Glukhovsky A, et al. Wireless capsule endoscopy [J]. Nature, 2000, 405: 417–420.
Fischer D, Schreiber R, Levi D, et al. Capsule endoscopy: The localization system [J]. Gastrointestinal Endoscopy Clinics of North America, 2004, 14: 25–31.
Wang W X, Yan G Z, Sun F. A non-invasive method for gastrointestinal parameter monitoring [J]. World J Gastroentero, 2005, 11(4): 521–524.
Thomas S. Smart-pill redefines “noninvasive” [J]. Buffalo Physician, 2006, 40(3): 13–14.
Stathopoulos E, Schlageter V, Meyrat B, et al. Magnetic pill tracking: A novel non-invasive tool for investigation of human digestive motility [J]. Neurogastroenterol Motil, 2005, 17: 148–154.
Paperno E, Keisar P. Three-dimensional magnetic tracking of biaxial sensors [J]. IEEE Transactions on Magnetics, 2004, 40: 1530–1537.
Wang X N, Meng Q H. Study of a position and orientation tracking method for wireless capsule endoscope [J]. International Journal of Information Acquisition, 2005, 2(2): 113–121.
Honeywell Incorporation. Magnetic sensors product catalog [EB/OL]. http://www.ssec.honeywell.com /magnetic, August, 2006.
Guo Xudong, Yan Guozheng, He Wenhui. Modeling of consecutive tracking system for implantable medical micro-instruments [J]. Journal of System Simulation, 2007, 19(15): 3582–3585.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20040248033); the National High Technology Research and Development Program (863) of China (No. 2006AA04Z368)
Rights and permissions
About this article
Cite this article
Guo, Xd., Yan, Gz. & Jiang, Pp. Feasibility of localizing in vivo micro-devices with electromagnetic methods. J. Shanghai Jiaotong Univ. (Sci.) 13, 559–561 (2008). https://doi.org/10.1007/s12204-008-0559-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12204-008-0559-9