Electronic stethoscope based on piezoelectric film sensor

Abstract

The invention provides an electronic stethoscope based on a piezoelectric film sensor. The stethoscope comprises a pickup part and a holding part, and the pickup part comprises a piezoelectric film sensor used for collecting and converting to generate an electronic signal representing acoustic vibration and a common chamber used for increasing sound pickup; the holding part comprises a control unit used for controlling sound acquisition, receiving the electronic signal representing acoustic vibration and performing data analysis to obtain an analysis result, a display unit used for displayinginformation according to the analysis result and an energy storage unit used for providing electric energy for the control unit, the sensor and the display unit; and the pickup part is detachably connected to the holding part. According to the electronic stethoscope, a digital stethoscope is optimized, so that the structure of the electronic stethoscope is more convenient for a user to hold, the contact with a patient is avoided, and the subsequent cleaning work of an operator is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an electronic stethoscope based on a piezoelectric film sensor. Background technique [0002] Breath sounds are commonly known as lung sounds, which can reflect the acoustic properties of the lung tissue, trachea and chest wall and other transmission media. Accurate analysis and classification of breath sound signals can play an important and decisive role in the diagnosis of respiratory diseases. Among the diagnostic criteria, pulmonary rales (moist rales, vesicular sounds) are of great significance for the diagnosis of pneumonia. Compared with other detection equipment, the stethoscope can not only obtain disease information directly, simply, quickly, accurately and effectively, but also has the advantages of low price, non-invasiveness, non-radioactivity, and repeatability. Therefore, as one of the most commonly used clinical disease diagnosis tools, the stethoscop...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the auscultation standard of the existing mechanical stethoscope is not uniform, and a new digital stethoscope is used instead, and optimized for the digital stethoscope, so that its structure is more convenient for the user to hold and avoid contact with the patient. Facilitate the operator to carry out follow-up cleaning work

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