CN109717896A - A kind of visible electronic auscultation system - Google Patents
A kind of visible electronic auscultation system Download PDFInfo
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- CN109717896A CN109717896A CN201711030476.XA CN201711030476A CN109717896A CN 109717896 A CN109717896 A CN 109717896A CN 201711030476 A CN201711030476 A CN 201711030476A CN 109717896 A CN109717896 A CN 109717896A
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- module
- microphone
- visible electronic
- master controller
- electronic auscultation
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Abstract
The invention discloses a kind of visible electronic auscultation systems, including the microphone for acquiring human body different parts heart sound, breath sound physiological hurt, microphone is connect after signal conditioning circuit with master controller, master controller shows that signal conditioning circuit, master controller and Liquid Crystal Module are respectively connected with power module for being sent to Liquid Crystal Module progress waveform after being AD converted received signal.The present invention is easy to use, it is at low cost, it is small in size, allow clinician while heart or auscultation of lung it can be seen that the waveform diagram of corresponding signal, more accurate judgement is made convenient for the lesion to patient, while promoting the research and diagnosis and treatment of cardiovascular and cerebrovascular disease and respiratory disease.
Description
Technical field
The invention belongs to medical device technical fields, and in particular to a kind of visible electronic auscultation system.
Background technique
Traditional stethoscope is by resonance plate, the conduit composition of sound resonance chamber and conduction sound, the disadvantage is that being difficult to capture
Some faint really very important physiological sounds that human body viscera issues, accuracy is poor, and auscultation while cannot achieve waveform
Real-time display is easy to be influenced by human ear hearing sensitivity limitation and auscultator's supervisor's experience, and the same time is only used for auscultation one
Kind physiological hurt, cannot integrate auscultation.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of visible electronic
Auscultation system, accuracy height, waveform real-time display, energy while stethoscope heart sound and breath sound.
The invention adopts the following technical scheme:
A kind of visible electronic auscultation system, including for acquiring human body different parts heart sound, breath sound physiological hurt
Microphone, microphone are connect after signal conditioning circuit with master controller, and master controller is used to received signal carrying out AD
It is sent to Liquid Crystal Module progress waveform after conversion and shows that signal conditioning circuit, master controller and Liquid Crystal Module are respectively connected with power supply
Module.
Further, signal conditioning circuit includes sequentially connected primary amplification module, filter module and main amplification module,
Main amplification module is connect with master controller.
Further, primary amplification module and main amplification module are all made of LM358 type, and filter module uses TLC04.
Further, main amplification module is also connected with earphone, and power amplification mould is provided between main amplification module and earphone
Block.
Further, microphone uses electret capcitor microphone, is internally provided with heart sound/breath sound probe.
Further, heart sound/breath sound probe uses capacitance probe, impedance 108Ohm.
Further, the acoustical coupling mode of microphone is Air Coupling.
Compared with prior art, the present invention at least has the advantages that
The present invention it is easy to use, it is at low cost, it is small in size, allow clinician while heart or auscultation of lung it can be seen that
The waveform diagram of corresponding signal makes more accurate judgement convenient for the lesion to patient, while promoting cardiovascular and cerebrovascular disease and exhaling
The research and diagnosis and treatment of desorption system disease.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is present system schematic diagram.
Specific embodiment
The heart sound of normal person has first heart sound, second heart sound, third heart sound and fourth heart sound, and general adult is because of third
It is very weak with fourth heart sound, it can only hear the first and second heart sound, the genesis mechanism of heart sound are as follows: the valve of heart and big blood vessel are in blood
In the lower vibration formed of stream impact and heart the acceleration of blood flow with slow down the turbulent flow formed and vortex and its to heart valve,
The generated vibration of effect of new house, locular wall, along with rapid increasing of cardiac muscle its rigidity under periodic painstaking effort active action
Adduction reduces the vibration formed, reaches body surface by ambition conducting system and forms body surface heart sound.
Referring to Fig. 1, the invention discloses a kind of visible electronic auscultation system, including microphone, microphone by human body not
Heart sound, breath sound physiological hurt with position produce, and are converted into the electric signal of simulation, primary amplification module is input to filtering mould
Block, filter module are sent into main amplification module after being filtered to signal, signal comes out from main amplification module divides two-way, all the way
It is sent into master controller to be AD converted, converts analog signals into digital signal, be re-fed into Liquid Crystal Module by processing and carry out wave
Shape shows that another way is sent into power amplifier module, then removes driving earphone or sound equipment, and power module is responsible for supplying modules
Electricity.
Preferably, microphone uses electret capcitor microphone, is internally provided with heart sound/breath sound probe, heart sound/exhale
Sound-absorbing probe uses capacitance probe, impedance 108Ohm.
The acoustical coupling mode of microphone is Air Coupling.
Primary amplification module and main amplification module are all made of LM358 type.Filter module uses TLC04.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (7)
1. a kind of visible electronic auscultation system, which is characterized in that including for acquiring human body different parts heart sound, breath sound physiology
The microphone of acoustical signal, microphone are connect after signal conditioning circuit with master controller, and master controller is used for received letter
It it is sent to Liquid Crystal Module after number being AD converted carries out waveform and show that signal conditioning circuit, master controller and Liquid Crystal Module connect
It is connected to power module.
2. a kind of visible electronic auscultation system according to claim 1, which is characterized in that signal conditioning circuit includes successively
Primary amplification module, filter module and the main amplification module of connection, main amplification module are connect with master controller.
3. a kind of visible electronic auscultation system according to claim 2, which is characterized in that primary amplification module and main amplification
Module is all made of LM358 type, and filter module uses TLC04.
4. a kind of visible electronic auscultation system according to claim 2, which is characterized in that main amplification module is also connected with ear
Machine is provided with power amplifier module between main amplification module and earphone.
5. a kind of visible electronic auscultation system according to claim 1, which is characterized in that microphone uses electret capacitor
Formula microphone is internally provided with heart sound/breath sound probe.
6. a kind of visible electronic auscultation system according to claim 5, which is characterized in that heart sound/breath sound probe uses
Capacitance probe, impedance 108Ohm.
7. a kind of visible electronic auscultation system according to claim 1, which is characterized in that the acoustical coupling mode of microphone is
Air Coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030476.XA CN109717896A (en) | 2017-10-27 | 2017-10-27 | A kind of visible electronic auscultation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030476.XA CN109717896A (en) | 2017-10-27 | 2017-10-27 | A kind of visible electronic auscultation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109717896A true CN109717896A (en) | 2019-05-07 |
Family
ID=66291125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711030476.XA Pending CN109717896A (en) | 2017-10-27 | 2017-10-27 | A kind of visible electronic auscultation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641460A (en) * | 2020-12-15 | 2021-04-13 | 浙江大学 | Physiological sound detection device and method based on micro-electromechanical piezoelectric acoustic sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883393A (en) * | 2006-06-22 | 2006-12-27 | 浙江大学 | Bluetooth cardiac sounds and breadth sounds auscultation monitor device |
| CN202801659U (en) * | 2012-05-08 | 2013-03-20 | 天津沃康科技有限公司 | Electronic stethoscope based on intelligent identification function |
| CN103120592A (en) * | 2012-11-29 | 2013-05-29 | 中国人民解放军第四军医大学 | Heart sound electronic auscultation and intelligent health analysis system |
| CN204016334U (en) * | 2014-08-04 | 2014-12-17 | 南阳医学高等专科学校 | A kind of hear sounds respiratory murmur visual electronic stethoscope |
-
2017
- 2017-10-27 CN CN201711030476.XA patent/CN109717896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883393A (en) * | 2006-06-22 | 2006-12-27 | 浙江大学 | Bluetooth cardiac sounds and breadth sounds auscultation monitor device |
| CN202801659U (en) * | 2012-05-08 | 2013-03-20 | 天津沃康科技有限公司 | Electronic stethoscope based on intelligent identification function |
| CN103120592A (en) * | 2012-11-29 | 2013-05-29 | 中国人民解放军第四军医大学 | Heart sound electronic auscultation and intelligent health analysis system |
| CN204016334U (en) * | 2014-08-04 | 2014-12-17 | 南阳医学高等专科学校 | A kind of hear sounds respiratory murmur visual electronic stethoscope |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641460A (en) * | 2020-12-15 | 2021-04-13 | 浙江大学 | Physiological sound detection device and method based on micro-electromechanical piezoelectric acoustic sensor |
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