Method for cardiac sound waveform data processing and graph displaying and auscultation system

Abstract

The invention discloses a method for cardiac sound waveform data processing and graph displaying and an auscultation system. With a cardiac sound waveform data processing method, characteristics of a first cardiac sound and a second cardiac sound can be identified accurately and automatically without the need to input any parameter by a user and a heart rate is extracted in real time. With a cardiac sound graph displaying method, an original cardiac sound graph and a similar electrocardiogram after data processing are displayed on a same graph simultaneously; and up-down comparison of characteristic points is realized conveniently by sharing a same timer shaft. Therefore, the original fluctuation situation of the original cardiac sound graph can be observed and the cardiac sound characteristics can be observed clearly in the similar electrocardiogram after data processing, so that a visualized effect of the cardiac sound graph is realized and a clear cardiac sound graph can be obtained and thus the diagnosis becomes accurate. With an electronic auscultation system, a heart rate can be record and extracted in real time and a clear cardiac sound graph can be displayed.

Description

technical field [0001] The invention relates to a heart sound data processing and display technology of an electronic stethoscope, in particular to a heart sound waveform data processing and graphic display method and an auscultation system thereof. Background technique [0002] In clinical work, medical staff often have to rely on a stethoscope to obtain the sound of human internal organ activities outside the body through the stethoscope, so that the medical staff can initially determine the cause of the disease. [0003] Heart sound is a sound that can reflect the normal or pathological state of the heart. It is formed by the opening and closing of each valve and the vibration generated by the movement of the myocardium and blood during the heartbeat process. Auscultation of heart sounds is an important basis for diagnosing heart disease. The traditional method is to use a stethoscope to auscultate heart sounds, and the basis for diagnosis is mainly the experience of doc...

AI Technical Summary

Problems solved by technology

At present, the price and function of domestic and foreign electronic stethoscope products are quite different. The performance of foreign electronic stethoscope products is better but the price is high. Compared with foreign products, there is still a big gap in the performance of domestic products. Most of them just collect heart sounds and amplify them. Although the stethoscope has been improved to a certain extent, it still cannot reflect the heart sound waveform well

[0007] Professionals in the industry know that the data processing of the sound acquired by the electronic stethoscope is very complicated, and it is not easy to obtain the physiological and pathological data models of the heart. How to extract the heart rate in real time and obtain a clear visual phonocardiogram that is easy to interpret difficult technical problem

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