Novel technique in sleep apnea monitoring.

摘要

Sleep apnea is a condition in which there are periods of pauses in breathing called apnea during sleep. It is usually diagnosed in sleep labs with a polysomnography system which monitors various parameters during sleep. Portable sleep apnea monitors are becoming common for use at homes. Commercially available sleep apnea monitors connect to a base station using several cables which leads to patient discomfort arising from restriction of freedom of movement. This thesis explores the feasibility of a completely wireless and mostly battery-free monitor that is small and inconspicuous to the patient while sleeping. As a proof of concept, the P2110 RF power harvester evaluation board from Powercast has been used to wirelessly power the sensor nodes and to send their data to a base station using a 2.4GHz radio. The proposed final application would involve a custom IC for power harvesting, amplification and telemetry.