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Heart sound strength identification method based on multiple paths of heart sound

A heart sound intensity and recognition method technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as inability to obtain heart sounds at the same time, and inability to analyze multi-channel heart sound data

Active Publication Date: 2018-08-21
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 electrical 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 th...

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Abstract

A heart sound strength identification method based on multiple paths of heart sound comprises the following steps that an electrocardiogram and multi paths of phonocardiograms are acquired and recorded synchronously, and electrocardio characteristics of each cardiac cycle are respectively identified; heart sound characteristics of each path of phonocardiograms are correspondingly found according to each electrocardio characteristic, first heart sound S1 is positioned acccoridng to electrocardio R waves; MS1 are obtained from the M-zone phonocardiograms in each cardiac cycle, the MS1 in M zonesare compared with normal amplitude values of M1, if the MS1 are greater than M1, it is determined that the current cardiac cycle S1 is strengthened; if the MS1 are smaller than the M1, it is determined that the current cardiac cycle S1 is weakened; if the M1 are in a normal range, it is determined that the current cardiac cycle S1 is normal. The heart sound strength identification method can automatically identify heart sound strength and change trend and is suitable for monitoring at home.

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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IPC IPC(8): A61B7/04A61B5/0402A61B5/0452A61B5/0456A61B5/352
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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