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

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a central artery pulse wave monitoring system and method based on two-point pulse waves on the body surface. Background technique [0002] Cardiovascular disease is the most important disease threatening human health today. "China Cardiovascular Disease Report 2012" pointed out that the number of patients with cardiovascular disease in my country is still growing rapidly. It is estimated that about 3.5 million people die of cardiovascular disease every year, accounting for 41% of the total death causes. The current number of patients is 290 million, and one person dies of cardiovascular disease every 10 seconds. According to data released by the World Health Organization, one out of every three deaths worldwide is due to cardiovascular disease. Due to the high morbidity and mortality of cardiovascular diseases, cardiovascular diseases have become one of the...

AI Technical Summary

Problems solved by technology

[0012] The above-mentioned instruments can make the detection of the central cardiovascular system easier, and the analysis results can provide more clinically useful information, but the prior function or model established by the transfer function method does not take into account the time-varying nature of the cardiovascular system

Images