Isolated over-ear electronic stethoscope
An electronic stethoscope and stethoscope technology, applied in the field of stethoscopes, can solve problems such as doctors being infected, and achieve the effects of suppressing noise and being convenient for picking and wearing.
Active Publication Date: 2022-08-09
西安佑君智能科技有限公司
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Problems solved by technology
[0005] In order to overcome the deficiencies of the prior art, the present invention provides an isolated ear-set electronic stethoscope, which can be used outside the protective clothing, and solves the problem that the in-ear stethoscope requires the protective clothing to be untied for use, thereby causing the risk of infection for doctors; at the same time, the stethoscope head It can be auscultated through the patient's single-layer underwear, so that the stethoscope head is not easy to cause cross infection, and the patient's embarrassment and discomfort are also avoided
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[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, and the present invention includes but is not limited to the following embodiments.
[0025] The idea of the present invention is to collect the sound signal from the acoustic sensor in the stethoscope head to hearing the sound signal through the earphone. The whole process adopts analog signal processing, which requires a large amplitude of power amplification. Protective clothing for auscultation. To achieve a large range of power amplification, the noise must be processed first, otherwise the noise will also be amplified, resulting in inability to auscultate. For this reason, the present invention adds an acoustic sensor that is exactly the same as the one in the stethoscope head. and the front-stage signal processing board, which performs differential processing on the signals of the two acoustic sensors, and the signals after differential processing ...
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The invention provides an isolated over-ear electronic stethoscope. The acoustic sensor of the stethoscope head collects acoustic signals and transmits them to the stethoscope host through frequency selection and amplification by the pre-stage signal processing board; The acoustic sensor in the stethoscope is exactly the same as the pre-signal processing board, and is powered by the same set of power supply system; the acoustic sensor in the stethoscope host is connected to the post-stage signal processing board through the pre-stage signal processing board after sound insulation treatment, and the post-stage signal processing board will The audio signals of the two acoustic sensors are subjected to differential noise reduction, and the noise-reduced audio signals are transmitted to the over-ear headphones through the power amplifier board. The present invention can be auscultated through the patient's single layer of underwear, can be used when medical staff wear protective clothing, and is especially suitable for use in epidemics such as new coronary pneumonia.
Description
technical field [0001] The invention relates to a medical device, in particular a stethoscope, which can be used when medical staff wear protective clothing, and is especially suitable for use in epidemics such as new coronary pneumonia. Background technique [0002] As one of the most commonly used medical tools, the stethoscope is one of the important means for doctors to auscultate heart and lung sounds and diagnose cardiovascular and respiratory diseases. At present, the stethoscope used by doctors is a traditional acoustic stethoscope. This type of stethoscope mainly includes a pickup, a conduction part, and a hearing part. The pickup part of the stethoscope has a large membrane cavity, and the sound waves in the body make the diaphragm of the stethoscope vibrate. Thereby, the air inside the stethoscope is driven to vibrate. The traditional acoustic stethoscope has a history of more than 200 years, and its acoustic performance has been continuously improved, and it has...
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IPC IPC(8): A61B7/04H04R1/10H04R1/46H04R3/00
CPCA61B7/04A61B7/026H04R1/46H04R1/1008H04R3/005
Inventor 刘华强
Owner 西安佑君智能科技有限公司