Miniaturized Electrodynamic Generator for Wireless Power Transfer and Positionning Control of an Endoscopic Capsule

Endoscopic capsules represent a major advancement in non-invasive diagnostics and treatment of gastrointestinal disorders, allowing access to hard-to-reach areas. However, they still encounter challenges related to orientation control, positioning, and power supply. This study presents a system incorporating a capsule-sized electrodynamic power receiver, magnetically controlled by a platform, enabling the operator to adjust the capsule’s position and orientation within a 3D space of 8 cm per side while simultaneously providing power to its sensors and actuators. This paper demonstrates wireless power transfer capabilities, delivering over 1 W at 850 Hz, along with effective 5D positioning control across various movement patterns.