Patent ID: 8337396

Claim:
An encapsulated medical device guidance system comprising: an encapsulated medical device having an internal biological information acquisition unit to acquire internal biological information, a communication unit to output the acquired internal biological information to the outside as an output signal, and a magnet; a plurality of receiving antennas which are different from one another in a direction in which receiver sensitivity in a directionality thereof is highest and receive the output signal; a selector which is connected to the plurality of antennas and selects a selected receiving antenna as a path for the output signal; a receiving device which is connected to the selector and receives the output signal from the selected receiving antenna; a magnetic field generating unit which generates an induction magnetic field for acting upon the magnet and moving the encapsulated medical device in a target direction; and a control unit which controls the magnetic field generating unit, wherein the control unit controls the selector to selectively disconnect from the receiving device an affected receiving antenna of the plurality of receiving antennas in which the induction magnetic field generated by the magnetic field generating unit has caused an overload current to flow.