WIRELESS SENSOR SYSTEMS AND METHODS

摘要

Incontinence management systems, methods, and sensors are provided that alert the caregiver when a patient's brief has been soiled. A resonant circuit includes a polyaniline/carbon black (PANI/CB) composite chemiresistor which undergoes a large impedance change upon exposure to the vapor or ‘smell’ of urine or feces. Due to the impedance change of the PANI/CB resistor, characteristics of the resonant circuit change when the sensor is exposed to urine or feces vapor. The sensor responds to an interrogating signal with a signal based least in part on the sensor's impedance and indicates the condition of the brief as soiled or clean.

主权项

1. A bodily waste sensor comprising:
a circuit comprising a polyaniline/carbon black (PANI/CB) chemiresistor and energized by an interrogating radio frequency (RF) signal to produce a response signal based at least in part on an impedance of the PANI/CB chemiresistor, the impedance of the PANI/CB chemiresistor becoming greater upon exposure to bodily waste than in the absence of bodily waste.