Dynamic monitoring system and warning method for myocardial blood oxygen supply and demand state based on heart rate and pulses

Abstract

The invention relates to a dynamic monitoring system and a warning method for a myocardial blood oxygen supply and demand state based on heart rate and pulses. The dynamic monitoring system is characterized by comprising a signal acquisition unit and a display terminal, wherein the signal acquisition unit comprises an initial blood pressure setting module, a signal acquisition module and a communication module, and the signal acquisition module is used for acquiring heart rate signals via a heart rate sensor, acquiring radial artery pulse signals via a pulse pressure sensor and sending acquired signals to the display terminal; the display terminal comprises a data transmission unit, a pulse signal processing unit, an exercise intensity detecting unit and a warning unit and is used for calculating subendocardial myocardial viability by means of analyzing the radial artery pulse signals in real time and assessing the myocardial blood oxygen supply and demand state according to the current exercise intensity of a user. The invention further provides the warning method of the dynamic monitoring system. The dynamic monitoring system and the warning method have the advantages that corresponding prompts and warnings can be provided for the user according to measurement results of the subendocardial myocardial viability rate, and dynamic monitoring on myocardial blood oxygen supply and demand state of a human body can be achieved.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a dynamic monitoring system and an early warning method for myocardial blood oxygen supply and demand. Background technique [0002] Ischemic heart disease is currently the main factor causing heart failure. In China, heart failure caused by ischemic heart disease accounts for more than half. The main pathogenesis of ischemic heart disease lies in the long-term and chronic ischemia of the myocardium. Myocardial blood oxygen supply and demand are affected by both myocardial oxygen consumption and myocardial oxygen supply, and myocardial ischemia is a result of insufficient myocardial oxygen supply to meet myocardial oxygen demand, resulting in an imbalance between blood oxygen supply and demand. [0003] The latest research at home and abroad shows that the subendocardial viability ratio (SEVR) is an index to measure the balance between supply and demand of the cor...

AI Technical Summary

Problems solved by technology

Studies have shown that the increase in exercise intensity will lead to prolonged ventricular ejection time and shortened diastolic filling time, which will eventually lead to a decrease in SEVR, and as the intensity gradually increases, SEVR will continue to decrease

Although this reduction in SEVR is non-pathological, excessive reduction in SEVR prevents the user's cardiomyocytes from receiving sufficient oxygen, and in the long run, may induce myocardial ischemia

[0005] The Chinese patent application number 200910185372.5 discloses a detection and analysis method and detection device for cardiovascular function parameters based on the radial artery pulse wave. The user's blood pressure and pulse waveform can be obtained through the detection device and method, and SEVR can also be obtained through analysis, but This patent requires the user to measure in a resting state, and cannot obtain SEVR indicators in real time

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