Patent ID: 8398542
Filing Date: 2013-03-19
Classification: A61B

Abstract:
1. A living body observation system comprising, a living body information acquiring apparatus including: a living body information acquiring section for acquiring living body information in a living body; a wireless transmission section for wirelessly transmitting the living body information to outside of the living body; a power source section for supplying driving power for driving the living body information acquiring section and the wireless transmission section; a magnetic field detecting section for detecting a magnetic field from outside and outputting a detection result as an electric signal; and a power supply control section for controlling a supplying state of the driving power supplied from the power source section to the living body information acquiring section and the wireless transmission section based on the electric signal; wherein the power supply control section controls the power source section to start supplying driving power upon the detection of the electric signal and controls the power source section to stop supplying driving power upon the detection of the electric signal; a magnetic field generating section disposed outside the living body information acquiring apparatus, the magnetic field generating section including: a power source section configured by one of a battery or built-in battery; a magnetic field generating coil; a driving circuit for outputting a drive signal for driving the magnetic field generating coil; a switch for witching between on and off of a generation state of an alternate-current magnetic field in the magnetic field generating coil; and a timer for outputting a stop signal for stopping output of the drive signal when a predetermined period has passed following switching from off to on of the switch, irrespective of whether the switch is on or off; wherein the magnetic field generating section is configured to start a generation of the alternate-current magnetic field when the switch is switched from off to on, and to stop the generation of the alternate-current magnetic field after a predetermined period has passed, irrespective of whether the switch is on or off.