A sleep respiratory monitoring system based on piezoelectric film sensors

Abstract

Sleep apnea hypoventilation syndrome (SAHS) is a potentially dangerous and common disease that can affect the patient’s health and even lead to sudden death during sleep, making it necessary to monitor changes in respiratory status in real time. Traditional medical devices are mainly concentrated in hospitals and are not conducive to widespread use, while wearable medical devices are well suited to this task. Occasional transient respiratory obstruction is common during sleep for normal people, but it is pathological if SAHS occurs very frequently and severe. In this paper, a respiration monitoring system based on piezoelectric film sensor was fabricated, which can make real-time monitoring, record and display the respiration rate, and automatically recognize it and sound a warning. The proposed system shows great potential for wearable SAHS monitoring instrument.