Noninvasive and continuous blood pressure monitoring method and device based on pulse wave propagation time
A technology of propagation time and pulse wave, which is applied in the field of medical devices, can solve the problems of sensor acoustic wave path changes, performance indicators not met, and large dispersion of systolic blood pressure, etc., to achieve the effect of easy real-time detection, small measurement error, and blood pressure measurement
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[0038] Such as Figure 1-Figure 2 As shown, the non-invasive continuous blood pressure monitoring method based on pulse wave propagation time of the present invention includes the following steps:
[0039] 1) Stick the ECG electrodes according to the standard ECG lead II and connect the ECG lead wires;
[0040] 2) Clip the PPG sensor to the end of the index finger of the subject;
[0041] 3) In the three positions of the subject, lying on the back, standing with arms raised vertically, and bent over, the ECG signal detection unit is used to detect the ECG signal, and the volume pulse wave signal detection unit is used to detect the PPG signal at the end of the index finger, and By measuring the time difference between the peak point of the R wave of the ECG signal and the characteristic point of the PPG signal as the propagation time PTT of the pulse wave, the approximate relationship between blood pressure and PTT is obtained by Thomas Young and Mohs wave velocity formula:
[0042] ...
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