CAPSULE MEDICAL DEVICE AND MEDICAL SYSTEM

摘要

A capsule medical device includes: a power supply unit; a capsule detection magnetic field generation unit configured to generate a capsule detection magnetic field, with which at least one of a position and a posture of the capsule medical device is detected, upon receiving electric power; a state detection unit configured to detect a state of the capsule medical device; a control unit configured to control power supply to the capsule detection magnetic field generation unit; and a magnetic field response unit configured to respond to a guiding-magnetic field for guiding at least one of the position and the posture, wherein the state detection unit includes a guiding-magnetic field detector configured to detect at least one of a strength, a direction, and a gradient of the guiding-magnetic field, and the control unit controls the power supply in accordance with a detection result of the guiding-magnetic field detector.

主权项

1. A capsule medical device which is introduced into a subject and used therein, the capsule medical device comprising:
a power supply unit; a capsule detection magnetic field generation unit configured to generate a capsule detection magnetic field, with which at least one of a position and a posture of the capsule medical device is detected outside the subject, upon receiving electric power provided by the power supply unit; a state detection unit configured to detect a state of the capsule medical device; a control unit configured to control power supply from the power supply unit to the capsule detection magnetic field generation unit based on a detection result of the state detection unit; and a magnetic field response unit made of a magnetic member and configured to respond to a guiding-magnetic field which is a magnetic field applied from outside to the capsule medical device for guiding at least one of the position and the posture of the capsule medical device, wherein the state detection unit includes a guiding-magnetic field detector configured to detect at least one of a strength, a direction, and a gradient of the guiding-magnetic field, and the control unit controls the power supply in accordance with a detection result of the guiding-magnetic field detector.