Development of magnetically driven swimming mechanism applicable to capsule endoscope for stomach inspection

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  • 胃腔用カプセル型医療機器への応用を目指した水中推進機構の開発

Abstract

<p>In this study, we have proposed a novel magnetic control method of a swimming mechanism applicable to capsule endoscope for stomach inspection. This mechanism is composed of a magnet and an elastic plate, and is attached to a central portion of the capsule. When AC magnetic field is applied in the direction perpendicular to the water surface, the magnet is angularly oscillated by magnetic torque. Then the elastic plate swings and generates thrust in the horizontal direction. At the same time, applying a DC magnetic field in a horizontal surface, the propulsion direction of the capsule can be controlled. Furthermore, when AC magnetic field biased with DC magnetic field is applied in the direction perpendicular to the water surface, the capsule can move in the vertical direction.</p>

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