Research and Development of a Portable Ultrasonic Device for Detecting Urine Volume

Patients with Alzheimer's disease as well as those with lower limb paralysis often suffer from varying degrees of urinary incontinence. In this work, an ultrasonic-based bladder urine volume detection device was developed, in which the urine volume can be measured in vitro. The ultrasonic transmitting circuit and ultrasonic receiving circuit were designed and developed. The characteristics of bladder expansion were analyzed, and the pinhole camera model was designed for detecting urine volume, moreover, the bladder height model was proposed to calculate the bladder urine volume. The effectiveness of the hardware circuit is verified by the function test of the ultrasonic transmitting circuit and receiving circuit. Finally, the biological tissue experiment and simulated bladder experiment were carried out to verify the feasibility and effectiveness of the device for measuring bladder urine volume.