Development of wearable device for the respiratory sound measurement of each phases using chest movement

Abstract

This study proposes a chest sound-based wearable device for respiratory measuring and the monitoring of asthma. For the proper diagnosing and follow-up, measuring the respiratory is important when symptoms of asthma appear. The symptoms are convulsive, although asthma is a chronic disease. The symptoms could appear when the patients are in their homes or outdoor, so the proper finding of their severity is difficult. The main challenge here is the respiratory phase identification because of the high level of distortions to the signals from the artefacts during spontaneous breathing. To overcome this challenge and realize high noise stability, both the respiratory sound and the chest movements are used. To measure the chest movements, this device is formed from a flexible material. The results of a preliminary experiment and a phase identification experiment show the characteristics of signals and the possibility of identification by using proposed device.