An omnidirectional transcutaneous power link for capsule endoscopy

Abstract

An inductive link is presented that can handle freedom of motion. The envisaged application is to power a wireless camera capsule used for noninvasive visual inspection of the small bowel. Up to 150 mW of usable DC power can be delivered to the capsule for the entire duration of its travel along the gastric track. The realization of the link is discussed in detail. Measured data of the link performance are presented and evaluated