Coronary heart disease surveillance and diagnosis device

Abstract

The invention relates to a coronary heart disease surveillance and diagnosis device. The coronary heart disease surveillance and diagnosis device comprises a heart-lung signal collection device and aheart-lung signal analyzing device, wherein the heart-lung signal collection device collects heart-lung sound overlapped signals and sends the heart-lung sound overlapped signals to the heart-lung signal analyzing device, and the heart-lung signal analyzing device separates the heart-lung sound overlapped signals according to the short-time Fourier transform method so as to obtain an original heart sound signal; the original heart sound signal is reduced according to the double-threshold method, the peak picking method and the endpoint algorithm so as to obtain a phonocardiogram; the phonocardiogram is subjected to complex wavelet transformation so as to extract a signal envelop of the complex wavelet transformation; the signal envelop is trained according to a trained BP neural network soas to obtain an analysis result, and the analysis result is output. Based on the characteristic that in the early period of the coronary heart disease, high-frequency pathological murmur can occur inthe heart sound signal, the heart-lung sound overlapped signals are analyzed by using the short-time Fourier transform method, it is noninvasively and early diagnosed whether an examinee suffers fromthe coronary heart disease or not, and the diagnosis efficiency is high.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a monitoring and diagnosing device for coronary heart disease. Background technique [0002] Coronary heart disease is medically called coronary heart disease. Coronary heart disease seriously endangers people's health. The key to its treatment is early diagnosis and timely treatment. [0003] For a long time, coronary angiography has been the standard for diagnosing coronary heart disease. However, this invasive interventional therapy is not suitable for routine physical examination due to its high cost. Other diagnostic methods, such as electrocardiography, echocardiography, cardiac radionuclide scanning myocardial imaging and other noninvasive detection methods, have certain value in the early diagnosis of coronary heart disease, but they also have limitations and cannot be widely used. For example, in the early stage of the onset of coronary heart disease, it will not cause ab...

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Problems solved by technology

[0003] For a long time, coronary angiography has been the standard for diagnosing coronary heart disease. However, this invasive interventional therapy is not suitable for routine physical examination due to its high cost

Other diagnostic methods, such as electrocardiography, echocardiography, cardiac radionuclide scanning myocardial imaging and other non-invasive detection methods have certain value in the early diagnosis of coronary heart disease, but they also have limitations and cannot be widely used

For example, in the early stage of the onset of coronary heart disease, it will not cause abnormal changes in the electrocardiogram, and only when the coronary artery obstruction rate is above 70% can it cause significant changes in the ECG (electrocardiogram, electrocardiogram), so early diagnosis cannot be achieved, and patients cannot be diagnosed in time. Master your own physical function status, but currently there is no effective portable coronary heart disease monitoring and diagnostic equipment that can be used in the community and at home

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