Electronic stethoscope based on MEMS technology

Abstract

The invention discloses an electronic stethoscope based on the MEMS technology. According to the electronic stethoscope, a pickup head upper cover is mounted on a pickup head through thread connection, an annular clamp groove is formed in the bottom surface of the pickup head, a acoustically transparent rubber cap is fixedly mounted in the annular clamp groove of the pickup head through polyurethane glue, a cavity is arranged in the pickup head, a cantilever beam-cilium type microstructure is mounted in the cavity of the pickup head, one end of a hollow conduit is connected with the pickup head, the other end of the hollow conduit is connected with a hand-holding support pipe, the hand-holding support pipe is connected with a bifurcated pipe through a leather hose, a right binaural conduit and a left binaural conduit are mounted on the bifurcated pipe, a right earphone head is mounted on the right binaural conduit, and a left earphone head is mounted on the left binaural conduit. According to the electronic stethoscope, the acoustic microstructural sensor processed based on the MEMS technology and having high sensitivity is taken as the pickup device or picking up heart sound signals, and the electronic stethoscope has the advantages that the sensitivity is high, the heart rate is displayed in real time, the auscultation is clear, the waveforms can be displayed at the computer end, etc.

Description

technical field [0001] The invention belongs to the technical field of intelligent medical devices, in particular to an electronic stethoscope based on MEMS technology. Background technique [0002] As an essential medical tool for doctors, the stethoscope plays an important role in the diagnosis of cardiovascular and respiratory diseases. The traditional stethoscope is composed of a resonant plate, a resonant cavity and a sound conduit. The disadvantage is that it has no amplification effect and the sound It is relatively weak, and it is also greatly affected by environmental noise, and there is no LCD screen to display the heart rate in real time. Doctors need to read the number of heartbeats based on watches or other timing tools and then convert them into heart rates. These shortcomings will cause doctors to be unable to make timely and accurate diagnoses in some cases. The Chinese patent application with the patent application number CN201510589217.5 discloses a "visua...

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Problems solved by technology

[0002] As an essential medical tool for doctors, the stethoscope plays an important role in the diagnosis of cardiovascular and respiratory diseases. The traditional stethoscope is composed of a resonant plate, a resonant cavity and a sound conduit. The disadvantage is that it has no amplification effect and the sound It is relatively weak, and it is also greatly affected by environmental noise, and there is no LCD screen to display the heart rate in real time

Doctors need to read the number of heartbeats based on watches or other timing tools and then convert them into heart rates. These shortcomings will ca

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