Multifunctional electronic stethoscope and auscultation system

Abstract

The invention relates to a multifunctional electronic stethoscope. The multifunctional electronic stethoscope comprises a power generation circuit, a stethoscope head, a primary amplifying circuit, a band-pass filtering circuit, a power frequency trap circuit, a main amplifying and voltage bias circuit and a signal processing module, wherein the power generation circuit is used for supplying power for the primary amplifying circuit and the signal processing module; the stethoscope head is used for transmitting a human body heart sound signal or a fetal sound signal to the primary amplifying circuit; the primary amplifying circuit is used for amplifying the collected signal; the band-pass filtering circuit is used for performing noise reduction on the collected signal; the power frequency trap circuit is used for performing interference suppression on the collected signal; the main amplifying and voltage bias circuit is used for amplifying the collected signal and biasing the amplified voltage to a set voltage value; the signal processing module is used for processing the collected signal and performing A / D conversion on the collected signal. The invention further provides a multifunctional electronic auscultation system.

Description

technical field [0001] The invention relates to an electronic stethoscope, in particular to a multifunctional electronic stethoscope; the invention also provides a multifunctional electronic stethoscope system. Background technique [0002] The heart sound signal is a signal generated by the mechanical vibration of the heart and blood vessels, which can reflect the movement status of the heart's atria, ventricular valves and blood vessels, and contains physiological and pathological information about the heart itself and the interaction between each part. Heart sound signal analysis has irreplaceable advantages of electrocardiogram and echocardiogram. Heart sound signals can reflect congenital heart valve damage, heart mechanical activity disorders caused by heart electrical conduction tissue lesions, etc.; cardiac mechanical activity disorders caused by abnormal heart electrical conduction tissue will not be reflected in the heart electrical signal at the first time (ECG) ...

AI Technical Summary

Problems solved by technology

There are currently two approved electronic stethoscope products in China, but the users are all doctors, and the product itself does not involve disease diagnosis. It can only be used for signal collection and digitization, and cannot be called a smart device.

On the other hand, with regard to intelligent auscultation, the existing patents often have a single function. Except for the detection of heart sounds and lung sounds, they do not have a complete system package, and there is no in-depth excavation of the information contained in heart sound signals that can be used for preliminary disease diagnosis. Fetal heart sound detection and intelligent recognition function

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