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An active endoscopic robot based on wireless power transmission and electromagnetic localization
Author(s) -
Li Hongwei,
Yan Guozheng,
Ma Guanying
Publication year - 2008
Publication title -
the international journal of medical robotics and computer assisted surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 53
eISSN - 1478-596X
pISSN - 1478-5951
DOI - 10.1002/rcs.220
Subject(s) - robot , computer science , transmission (telecommunications) , orientation (vector space) , wireless , position (finance) , power transmission , power (physics) , electromagnetic coil , artificial intelligence , electromagnetic field , computer vision , magnetic field , medical robotics , simulation , electrical engineering , physics , telecommunications , mathematics , engineering , geometry , finance , quantum mechanics , economics
Background Conventional endoscopes have the disadvantages of causing pain to patients because of their large dimensions and allowing incomplete inspection because of their limited power. Methods An active inchworm‐like endoscopic robot has been designed, which is based on electromagnetic localization and synthesis of magnetic field strength vectors. Results The efficiency of wireless power transmission can be kept above 0.9% when the power‐receiving coil is at arbitrary position and orientation. The position error of localization is < 10 mm and the average error of orientation angle is 2° . When the robot moves through part of the porcine colon, images are transmitted outwards continuously at a speed of 30 fps and the temperature rise of the colon is < 1 °C. By simulation, the electromagnetic exposures to the human body are lower than international standards. Conclusions The endoscopic robot is a promising tool for use by doctors, although further experiments and improvements need to be done. Copyright © 2008 John Wiley & Sons, Ltd.