Patent ID: 8010182

Claim:
A detecting system of the position and the posture of a capsule medical device, comprising: a main body of the capsule medical device to be inserted in a living body; a magnet provided to the main body of the capsule medical device; a coil in the capsule configuring a resonant circuit, provided to the main body of the capsule medical device; an exciting coil arranged around the living body, for generating an alternating magnetic field for causing the coil in the capsule to generate an induced electromotive force; at least one detecting coil for detecting the strength of the induced magnetic field generated by the coil in the capsule by the alternating magnetic field; and a rotating magnetic field generating device for generating a rotating magnetic field to be applied to the magnet so as to induce the main body of the capsule medical device, wherein a frequency of the rotating magnetic field generated by the rotating magnetic field generating device is different from a resonant frequency of the resonant circuit such that magnetic induction by the rotating magnetic field and mutual induction at the resonant circuit do not mutually influence each other.