Patent ID: 8915840

Claim:
A capsule-type medical device that receives an electric power from outside a body of an individual to be examined and performs a plurality of kinds of predetermined processing inside the body, comprising: a processing circuit that performs the plurality of kinds of predetermined processing inside the body, a processing load for each of the plurality of kinds of predetermined processing being different; and a power receiving circuit that has a power receiving coil that wirelessly receives an electric power from outside the body, a power receiving resonance capacitor, and an adjusting reactance section that is capable of adjusting a reactance that is connected to the power receiving coil and the power receiving resonance capacitor; wherein the capsule-type medical device further comprises a reactance adjusting circuit that matches an impedance of the processing circuit and an impedance of the power receiving circuit by adjusting a reactance of the adjusting reactance section, in accordance with each of the plurality of kinds of predetermined processing.