A telemetry and sensor platform for ambulatory urodynamics

This paper reports the use of pressure sensitive telemetry device to access the pressure state of the bladder for ambulatory urodynamics. The device consisted of pressure sensor, amplifier, VCO, and oscillator. The integrated circuit was fabricated using MOSIS AMI 1.5 micron technology. The device was able to transmit pulses of radio waves whose pulsing rate is a function of the pressure. A small balloon technology was also developed to help the device float in the water.