Souffle eliminated auscultation device and method
A technology of noise and auscultation head, which is applied in the field of auscultation devices, can solve the problems of doctor's ear discomfort, inconvenient use of electronic stethoscopes, and inability to completely eliminate noise, so as to achieve the effect of improving the quality of auscultation
Active Publication Date: 2009-02-11
IND TECH RES INST
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Problems solved by technology
Most of the electronic stethoscopes currently on the market are analog, but these electronic stethoscopes are more or less inconvenient in use.
[0004] The electronic stethoscope disclosed in the prior art, such as the "Electronic Stethoscope with Piezo-Electrical Film Contact Microphone" of U.S. Patent Publication No. 2005 / 0157888 A1, first applies an amplifier to amplify the heart pulse sound, and then filters out the noise with a filter. Although the technology patented in the announcement can filter out noise, it still needs more complex signal processing to achieve the function of eliminating noise, and the doctor will still be disturbed by the surrounding non-cardiac noise when performing auscultation, for example, if there is a sudden The impact sound will cause great discomfort to the doctor's ears
[0005] In view of the fact that the technology of the existing electronic stethoscope cannot completely eliminate unnecessary noise, the present invention proposes an auscultation device for eliminating noise. Whether the head reaches the auscultation position, so as to effectively eliminate the noise caused by friction, movement or impact during auscultation, so as to improve the quality of auscultation, and provide physicians with the least amount of noise interference, using the least amount of time and energy. most correct diagnosis
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[0022] In order to have a further cognition and understanding of the features, purposes and functions of the present invention, the detailed description is as follows in conjunction with the accompanying drawings:
[0023] Fig. 1 shows the schematic diagram of the auscultation device for noise elimination of the present invention, the auscultation device 100 comprises a stethoscope head 110, a signal processing circuit 120 and an earphone 130, wherein the auscultation head 110 comprises a microphone 112 and a sensor 114, and the signal processing circuit 120 comprises Microprocessor 122, recording circuit matching amplifier 124, low-pass filter 126 and characteristic heart audio band enhancer 128, wherein microprocessor 122 is connected and controls recording circuit matching amplifier 124, low-pass filter 126 and characteristic heart audio frequency on the one hand The work of segment intensifier 128, on the other hand is connected with the sensor 114 of auscultation head 110,...
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The invention relates to a stethoscope which can eliminate foreign sound and relative method, wherein said stethoscope comprises: a stethoscope head with microphone to receive heat sound and one sensor for detecting the stethoscope position; one signal processor connected to the stethoscope head to process the heat sound, while it has one record circuit amplifier to amplify the heat sound, one low-pass filter for filtering the foreign sound, one character heat sound strengthener for amplifying the character frequency section, and one microprocessor connecting and controlling the amplifier, filter, strengthener, sensor and microphone; and one earphone connected to the signal processor for sending the heat sound. With said invention, doctor can diagnose with least time.
Description
technical field [0001] The invention relates to an auscultation device and method for eliminating noise, in particular to an auscultation device and method using a sensor-containing auscultation head and a signal processing circuit, which can effectively eliminate noise caused by friction, movement or impact during auscultation , to improve the quality of auscultation. Background technique [0002] As we all know, the stethoscope is used to listen to the sounds in the patient's chest or abdomen to diagnose symptoms of cardiopulmonary or gastrointestinal diseases. It is a fast, safe and easy diagnostic tool, and is an important companion for physicians. Physicians can use stethoscopes to quickly screen patients with heart, lung or gastrointestinal diseases. However, the accuracy is related to the physician's ear sensitivity and experience. How to improve the function of the stethoscope and provide physicians with a good diagnostic tool is the continuous efforts of the industr...
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IPC IPC(8): A61B7/00
Inventor曾国华周意工谢佩莹周文扬苏茂舜郭宗德
OwnerIND TECH RES INST