Urine volume estimation device and urine volume estimation method

摘要

Urine amount estimation device 100 is provided with ultrasonic sensor 1 which transmits ultrasonic waves into the body and which detects waves produced by reflection of ultrasonic waves; and estimating unit 52 which estimates the amount of urine in the bladder based on whether reflected wave W3 from the bladder detected by ultrasonic sensor 1 is present and/or based on the magnitude of reflected wave W3 from the bladder detected by ultrasonic sensor 1.