Magnetic analysis and simulations of a self-propelled capsule endoscope

Wireless capsule endoscopy, as an outstanding application of Microelectronics and MEMS technology, provides a promising approach to acquire images of the gastrointestinal tract. Technological challenges for the next generation of endoscopic devices include reducing component size, improving power management, and introducing active locomotion control. This paper describes a novel solution in the endeavor of self-propelled capsule by exploiting the alternating and quasi-static magnetic field generated by a magnetically steering system. In particular, analysis and simulations are performed for providing guidance for design, optimization, and operating improvement. The proposed technique suggests a feasible approach in the field of gastrointestinal endoscopy.