Electronic timing and counting stethoscope

Abstract

The invention discloses an electronic timing and counting stethoscope. The stethoscope comprises an ear ring, a bushing, a rubber-plastic pipe and a master control box which are connected with one other and are tightly sleeved in turn, wherein the master control box comprises a stethoscope head and a master control box body; the master control box body is provided with a switch, a key and a liquid crystal display screen; a double-layer sealed passage is adopted by the stethoscope head, the master control box, the rubber-plastic pipe, the bushing and the ear ring; a signal acquisition circuit of a master control box circuit consists of a capacitive electret microphone, an operational amplifier and a time-base circuit which are connected with one another in turn; an output pulse signal of the time-base circuit is connected to a singlechip; the singlechip performs signal identification and operation; an output is connected to a liquid crystal display; and an electronic watch box can also be sleeved on the bushing. In the stethoscope, a vibration principle is used for signal acquisition; and the stethoscope is directly used for auscultation without distortion, is convenient to operate and use, is humanized, has a naturally increased hearing effect and intuitive and accurate electronic display, contributes to clinic diagnosis and is low in price.

Description

Technical field: [0001] The invention relates to the technical field of medical devices, in particular to an electronic timing and counting stethoscope. Background technique: [0002] A stethoscope is an essential tool for medical staff to diagnose diseases. The traditional stethoscope has been applied clinically for more than 200 years so far, and no more improvements have been made. When listening to the heart rate, you need to look at the watch. Calculating heart rate silently is both tedious and unscientific. In recent years, some foreign electronic stethoscopes such as Switzerland and Canada have used the principle of electrodes and are inconvenient to use because they touch the patient's skin. At the same time, they need to be powered on during auscultation, and the sound is amplified more than ten times. The sound effect is distorted, which affects clinical diagnosis, and is expensive. Invention content: [0003] The technical problem to be solved by the present ...

AI Technical Summary

Problems solved by technology

Calculating heart rate by heart is tedious and unscientific

In recent years, some foreign electronic stethoscopes such as Switzerland and Canada use the principle of electrodes, which are inconvenient to use because they touch the patient's skin. At the same time, they need to be powered on during auscultation, and the sound is amplified more than ten times. The sound effect is distorted, affecting clinical diagnosis, and the price is expensive.

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