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Heart sound splitting recognition method based on multiple heart sounds

A technology for splitting and recognizing heart sounds, applied in the fields of stethoscope, medical science, diagnosis, etc., can solve the problems of unable to obtain heart sounds at the same time, unable to perform multi-channel heart sound data analysis, etc., and achieve the effect of reducing dependence and automatic position error correction.

Active Publication Date: 2021-11-26
河南善仁医疗科技有限公司
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AI Technical Summary

Problems solved by technology

This manual auscultation method cannot obtain the heart sounds of each heart auscultation area of ​​the patient at the same time, and cannot perform multi-channel heart sound data analysis

Method used

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Embodiment Construction

[0104] The principle of the present invention is: the electric signal sent by the sinoatrial node is transmitted to the right atrium and the left atrium, and the excitement of the atrium is shown as the P wave of the electrocardiogram. Right ventricle, ventricular excitation is manifested as R wave on ECG, and ventricular repolarization is manifested as T wave on ECG. Ventricular repolarization awaits the next activation of the sinoatrial node. In the same cardiac cycle, the ECG should have P waves, R waves and T waves.

[0105] The generation of S1 is related to the closure of mitral valve (T1) and tricuspid valve (M1), and the generation of S2 is caused by the closure of aortic valve (A2) and pulmonary valve (P2). During one cardiac cycle, the phonocardiogram should have S1 and S2. When the cardiac cycle of the electrocardiogram does not correspond to the cardiac cycle of the phonocardiogram, it is likely that the state of the heart is abnormal.

[0106] According to the ...

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Abstract

The heart sound split recognition method based on multiple heart sounds comprises the following steps: synchronously collecting and synchronously recording electrocardiograms and multi-channel phonocardiograms, respectively identifying the electrocardiographic characteristics of each cardiac cycle; correspondingly finding each path of the phonocardiogram according to each electrocardiographic feature Heart sound characteristics, respectively for each cardiac cycle in the electrocardiogram to obtain the R wave, the S1 corresponding to the current R wave on the M area phonocardiogram, the time corresponding to M1, and the T area on the T area phonocardiogram. S1 Marked S1, obtain the time corresponding to T1, and in each phonocardiogram, obtain the interval time T between M1 and T1 for each cardiac cycle M‑T , if T M‑T =0.02S, then S1 is a normal natural split; when a T appears in a phonocardiogram M‑T >0.02S, then S1 wide division, abnormal. The invention can automatically identify the natural split or abnormal split of the heart sound, and is suitable for home monitoring.

Description

technical field [0001] The invention relates to an analysis method of an electrocardiogram and a phonocardiogram, in particular to an analysis method of an electrocardiogram and heart sound suitable for home-use electrocardiogram and heart sound monitoring. Background technique [0002] In the human heart, the sinoatrial node automatically and rhythmically generates current, and the current is transmitted to various parts of the heart in the order of conduction tissue, thereby causing the contraction and relaxation of cardiomyocytes. The excitement from the sinoatrial node is transmitted to the atria and ventricles in a certain way and process, causing the excitement of the whole heart. Therefore, the direction, route, sequence and time of the electrical changes occurring during the excitation of each part of the heart are regular. This bioelectrical change is reflected to the body surface through the conduction resistance value and body fluid around the heart, so that all ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B7/04A61B5/318A61B5/352A61B5/355A61B5/353
CPCA61B7/04A61B5/316A61B5/318A61B5/352A61B5/349
Inventor 边俊杰邹文初邹旭辉
Owner 河南善仁医疗科技有限公司
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