Impulse-Driven Traveling Capsule Endoscope

Wireless Power Supply Position Control

Abstract

A wireless power supply method for self-propelled capsule endoscopes was studied. Conventional wireless power transfer with a fixed power transmission coil has a problem that the power transfer is interrupted when the capsule moves. Therefore, we studied the possibility of stabilizing the power supply by moving the power transmission coil in X-Y motion according to the increase or decrease of the power supply, and following the capsule. Experiments confirmed the feasibility of this technology. It is possible to reduce the burden of endoscopy on both the patient and the physician, and can also be applied to the power supply to medical devices inside the body for this technology.