Intra-subject information acquiring system

摘要

A remaining-power-amount recognizing circuit 20 provided within a capsule endoscope 2 recognizes a remaining power amount of a body-insertable apparatus (capsule endoscope 2), and superimposes the remaining-power-amount information on a transmission signal. An RF transmitting unit 15 of the capsule endoscope 2 transmits the superimposed information to a receiving apparatus 3 at the outside of the subject. A remaining-power-amount detecting circuit 48 provided within an external device 32 of the receiving apparatus 3 detects the remaining-power-amount information, and displays the detected information on a display unit 51 provided within the external device 32. With this arrangement, a user can promptly recognize a remaining power amount of the capsule endoscope 2.