We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Active actuation system of wireless capsule endoscope based on magnetic field

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Dongmei Chen ; Shenzhen Inst. of Adv. Integration Technol., Chinese Acad. of Sci., Shenzhen ; Chao Hu ; Lei Wang ; Meng, M.Q.-H.

Capsule endoscopy, as a new technology involving integrated circuits, MEMS, image processing, radio transmission, and power supply, makes a significant break-through in the GI examination and therapy. However, there are still many problems for the applications of capsule endoscopes, especially for control or actuation of the capsule movement. Therefore, we propose a new technique to address these problems. First, we enclose a permanent magnet in the capsule, to find its localization and orientation by detecting the magnetic field distribution produced by the magnet, and this magnetic field can be measured by magnetic sensors. Second, we place 3 pairs of Helmholtz coils in spatial orthodox way around the human body, to form a rotative magnetic field, to actuate the magnet, so the capsule is propelled. In our system, the permanent magnet plays a role of both the localization, and actuation. This system is in closed-loop mode by using the feedback message from the localization system. Compared with other MEMS solutions, our actuation system has many advantages: no power supply, small space occupation, high-accuracy for positioning, and it will provide the medical doctor a feasible way to control capsule movement wirelessly.

Published in:

Robotics and Biomimetics, 2007. ROBIO 2007. IEEE International Conference on

Date of Conference:

15-18 Dec. 2007