A stable wireless energy transmission system for gastrointestinal microsystems.
A wireless energy transmission system using a Helmholtz primary coil outside and a 3-dimensional secondary coil inside the body is introduced. It is designed to transmit stable power to a gastrointestinal microsystem regardless of its position and orientation when working in the gastric tract. Up to 310 mW of usable DC power can be delivered under worst-case geometrical conditions. Measured data of the system performance are presented and evaluated.
Xin
W H
WH
Institute of Precise Engineering & Intelligent Microsystems, Shanghai Jiaotong University, Shanghai, PR China. whxin@sjtu.edu.cn
Yan
G Z
GZ
Wang
W X
WX
D053704:Capsule Endoscopy / Q000379:methods*; D004574:Electromagnetic Fields; D004582:Electronics, Medical / Q000295:instrumentation; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D006801:Humans; D013686:Telemetry / Q000295:instrumentation*