Wearable Physiological Signal Sensing System

Abstract

The present invention discloses a wearable sensing system for detecting physiological signals, which includes a system circuit board with upper and lower surfaces, a stethoscope is disposed on the lower surface for sensing the user's heart sound signal, and a plurality of electrocardiographic electrodes is disposed on the lower surface and adjacent to the stethoscope used to sense the user's ECG signal, and an oximeter is disposed on the upper surface to sense the user's blood oxygen concentration and pulse wave signal. The system circuit board is electrically connected to the stethoscope, the plurality of ECG electrodes and the oximeter. The system circuit board obtains the user's pulse transit time (PPT) by comparing the ECG signal with the pulse wave signal or by comparing the heart sound signal with the pulse wave signal. The PPT is used to calculate the user's continuous blood pressure.

Dependencies are inferred from the claim text.