A medical system including a capsule type medical device having a capsule configuration, an operation device, arranged external to the capsule type medical device, and including a generator circuit for generating a particular pattern signal, a switch, arranged in the capsule type medical device, for switching on or off power of the capsule type medical device, a receiver, arranged in the capsule type medical device, for receiving a signal from the outside, and a pattern monitoring unit, arranged in the capsule type medical device, for turning on or off the switch at the moment the pattern monitoring unit detects the particular pattern signal as an output signal from the receiver.
