Body surface two point pulse wave based central arterial pulse monitoring system and method

The invention provides a body surface two point pulse wave based central arterial pulse monitoring system and method. The body surface two point pulse wave based central arterial pulse monitoring system comprises a pulse wave signal obtaining and conditioning unit, a pulse wave signal processing and central arterial pulse wave reconstruction unit and a user interaction unit, wherein the user interaction unit comprises an LCD (Liquid Crystal Display), a touch screen and an SD (Security Digital) card. The body surface two point pulse wave based central arterial pulse monitoring method comprising placing a piezoelectric sensor at any two points of the body surface artery, binding a cuff, confirming the corresponding contact pressure when the pulse wave is at a largest amplitude and detecting pulse wave signals when air pressure inside the cuff achieves the contact pressure; intercepting pulse wave signals and performing standardized processing; calculating an FIR model of a branch vessel channel; reconstructing central arterial pulse waves and calibrating the central arterial pulse waves to have a real pressure amplitude. According to the body surface two point pulse wave based central arterial pulse monitoring system and method, reconstruction of the central arterial pulse waves not depends on a cardiovascular system transcendental function or model and individualized noninvasive real-time monitoring of the central arterial pulse waves is achieved due to the double-channel blind identification technology from the central arterial pulse waves to the body surface peripheral arterial pulse waves.