Research on flexible and substainable wearable patch for monitoring lung sound signal
Aiming at the shortcomings of the current digital stethoscope in long-term wear monitoring,a flexible wireless auscultation patch which has an extendable circuit structure for lung sound that can be tightly fitted is developed.Research on front-end inlet chamber of the auscultation sticker,the body surface adhesion,the mechanic-electrical properties of the extensible circuit structure,and the signal noise reduction are conducted.The results show that the flexible auscultation front end can closely fit the body surface,the mechanical-electrical stability of the extendable circuit structure is good,and the signal-to-noise ratio of the sampled lung sound signal is significantly improved after wavelet threshold noise reduction,the wearable digital auscultation with wireless long-term dynamic monitoring is realized,which can provide a certain research value for the follow-up continuous monitoring of the lungs and medical diagnosis.
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