Cardiac function detecting system based on cardiac sound and electrocardiogram

Abstract

The invention relates to a cardiac function detecting system based on cardiac sound and electrocardiogram, which comprises a multi-physiological-parameter signal hardware collecting and processing module, a USB HUB module and a computer processing system, wherein the multi-physiological-parameter signal hardware collecting and processing module comprises a cardiac sound collecting module with independent A / D conversion function and USB communication control function, an electrocardiogram collecting module and a non-invasive blood pressure collecting module; and the USB HUB module realizes the electrical safety isolation between the human body and a computer and transmits input signals to the computer processing system. The system simultaneously analyzes the cardiac function state from four aspects of cardiac force, cardiac rhythm, cardiac rate and blood pressure, can realize the myocardial ischemia detection, the pulseless electrical activity detection, the cardiac reserve detection of arrhythmia patients, and the like and is beneficial to discovering cardiac abnormalities in advance and adopting corresponding medical treatments, thereby improving the accuracy of cardiac disease diagnosis and the survival rate of cardiac patients and being beneficial to reducing the medical expenditure of patients.

Description

technical field [0001] The invention relates to a human heart function detection system and method, in particular to a heart sound and electrocardiogram-based heart function detection system and method, belonging to the technical field of medical electronic instruments. Background technique [0002] Heart sound signal is one of the most important acoustic signals in the human body. Changes in heart sound and appearance of murmurs are often the earliest signs of organic heart disease. When cardiovascular disease has not yet developed enough to produce other symptoms and signs (such as patient pain, abnormal ECG etc.), effective early diagnostic information can be obtained from heart sounds. And the main problem in most heart failure patients is the reduction of myocardial contractility. Electrocardiography is the best way to monitor cardiac chronotropy and variable conductance, but it cannot be used to monitor cardiac inotropy. [0003] Changes in the mechanical pump functi...

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Problems solved by technology

[0021] To sum up, the existing known patents and literatures all have some common features, and have certain limitations in the detection of cardiac functional status (such as left ventricular ejection fraction, ventricular ectopy and heart rate variability, etc., will Changes over time), and have not fully utilized the clinical value of heart sound signals, did not extract cardiac reserve indicators from heart sounds, and comprehensively analyzed them with ECG and non-invasive blood pressure indicators to achieve a comprehensive, objective and easy-to-popular application of heart Functional status detection

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