| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical capsule which enables continuous operation for a long time without enlargement of the size. SOLUTION: In an ultrasonic capsule 1 which is inserted in vivo for ultrasonograph to transmits or receives ultrasonic beams, an ultrasonic vibrator 6 for transmitting or receiving ultrasonic waves, an ultrasonic motor 5 for rotating the ultrasonic vibrator 6, an encoder 7 and a rotary transformer 8 arranged coaxially with the ultrasonic motor 5 and a smaller battery 9 are housed and arranged. A telemetry circuit board 10 for transmitting or receiving ultrasonic signals, a vibrator scanning circuit board 11 for ultrasonic scanning and a power source control circuit board 12 for the supply of the power source to the circuits and the charging of the battery 9 are arranged between the battery 9 and the encoder 7. The ultrasonic capsule receives energy signals to be transmitted from outside human bodies with the ultrasonic vibrator 6 to charge the battery 9. |
