CN204562206U - A kind of stored digital teaching electronic stethoscope - Google Patents
A kind of stored digital teaching electronic stethoscope Download PDFInfo
- Publication number
- CN204562206U CN204562206U CN201520217952.9U CN201520217952U CN204562206U CN 204562206 U CN204562206 U CN 204562206U CN 201520217952 U CN201520217952 U CN 201520217952U CN 204562206 U CN204562206 U CN 204562206U
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- CN
- China
- Prior art keywords
- piezoelectric film
- film sensor
- stored digital
- electronic stethoscope
- digital teaching
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model discloses a kind of stored digital teaching electronic stethoscope, it is characterized in that, comprise auscultation head, be packaged in the piezoelectric film sensor of described auscultation head inside, the audio preprocessor be connected with described piezoelectric film sensor, and the microprocessor to be connected with described audio preprocessor, described microprocessor is connected with left and right earphone simultaneously, and prestores the memorizer of normal cardiac sound signal; The utility model has the advantage of, piezoelectric film sensor is adopted to detect trickle cardiechema signals, can work under passive states, be adapted at using when power supply is limited, simultaneously thin, the light weight of piezoelectric film sensor thickness and soft, can stand millions of time bending and vibrations, ruggedness is good, and highly sensitive, bandwidth range is large; Adopt the memorizer prestoring normal cardiac sound signal simultaneously, contrast with the cardiechema signals listened at patient, contribute to student and correctly grasp stethoscopic using method, improve the quality of teaching.
Description
Technical field
this utility model relates to a kind of electronic stethoscope, especially relates to a kind of stored digital teaching electronic stethoscope.
Background technology
stethoscope is the doctor diagnosed cause of disease, make the rounds of the wards, understand the indispensable instrument of conditions of patients.Brilliant, a veteran doctor of medical skill, often judges, even determines to ask the state of an illness and the disease sites of doctor substantially by stethoscope.Therefore, by stethoscope, the correct state of an illness is made to patient and judge, be the required course of medic, grasp these basic skill extremely important.
teacher explain listen at patient, differentiates noise time, because student can not make comparisons with normal cardiac sound, the learning efficiency is slow, is unfavorable for Students ' Learning, and student is also difficult to the stethoscopic using method of correct grasp, has a strong impact on quality of instruction; Senser element simultaneously in existing stethoscope is active device, and consume electric energy, service life is short, and sensitivity is lower, and bandwidth range is little, and ruggedness is also poor.
Summary of the invention
this utility model object is: provide one not only highly sensitive, bandwidth range is large, ruggedness good, and the stored digital teaching electronic stethoscope contributing to improving the quality of teaching.
the technical solution of the utility model is: a kind of stored digital teaching electronic stethoscope, comprise auscultation head, be packaged in the piezoelectric film sensor of described auscultation head inside, the audio preprocessor be connected with described piezoelectric film sensor, and the microprocessor to be connected with described audio preprocessor, described microprocessor is connected with left and right earphone simultaneously, and prestores the memorizer of normal cardiac sound signal.
as preferred technical scheme, be connected by A/D converter between described audio preprocessor with described microprocessor.
as preferred technical scheme, described audio preprocessor comprises the amplifying circuit be connected with described piezoelectric film sensor, the bandwidth-limited circuit be connected with described amplifying circuit, and connects the power amplification circuit of described bandwidth-limited circuit and described A/D converter.
as preferred technical scheme, described auscultation head comprises housing, is located at the test surfaces on described housing, and described piezoelectric film sensor is affixed on described test surfaces inwall.
as preferred technical scheme, described test surfaces is elastic metallic face.
the utility model has the advantages that:
1. this utility model adopts piezoelectric film sensor to detect trickle cardiechema signals, can work under passive states, be adapted at using when power supply is limited, simultaneously thin, the light weight of piezoelectric film sensor thickness and soft, bending and the vibration of millions of times can be stood, ruggedness is good, and highly sensitive, bandwidth range is large;
2. this utility model adopts the memorizer prestoring normal cardiac sound signal, contrasts, contribute to student and correctly grasp stethoscopic using method, improve the quality of teaching with the cardiechema signals listened at patient.
Accompanying drawing explanation
below in conjunction with drawings and Examples, this utility model is further described:
fig. 1 is this utility model structural representation.
Detailed description of the invention
embodiment: with reference to shown in Fig. 1, a kind of stored digital teaching electronic stethoscope, comprise auscultation head, be packaged in the piezoelectric film sensor of auscultation head inside, the audio preprocessor be connected with piezoelectric film sensor, and the microprocessor be connected with audio preprocessor, microprocessor is connected with left and right earphone simultaneously, and prestore the memorizer of normal cardiac sound signal, and be connected by A/D converter between audio preprocessor with microprocessor.
audio preprocessor of the present utility model comprises the amplifying circuit be connected with piezoelectric film sensor, the bandwidth-limited circuit be connected with amplifying circuit, and the power amplification circuit of connecting band bandpass filter circuit and A/D converter.
auscultation head of the present utility model comprises housing, is located at the test surfaces on housing, and piezoelectric film sensor is affixed on test surfaces inwall, and this test surfaces is elastic metallic face.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to this utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a stored digital teaching electronic stethoscope, it is characterized in that, comprise auscultation head, be packaged in the piezoelectric film sensor of described auscultation head inside, the audio preprocessor be connected with described piezoelectric film sensor, and the microprocessor to be connected with described audio preprocessor, described microprocessor is connected with left and right earphone simultaneously, and prestores the memorizer of normal cardiac sound signal.
2. stored digital teaching electronic stethoscope according to claim 1, be is characterized in that, be connected between described audio preprocessor with described microprocessor by A/D converter.
3. stored digital teaching electronic stethoscope according to claim 2, it is characterized in that, described audio preprocessor comprises the amplifying circuit be connected with described piezoelectric film sensor, the bandwidth-limited circuit be connected with described amplifying circuit, and connects the power amplification circuit of described bandwidth-limited circuit and described A/D converter.
4. stored digital teaching electronic stethoscope according to claim 1, it is characterized in that, described auscultation head comprises housing, is located at the test surfaces on described housing, and described piezoelectric film sensor is affixed on described test surfaces inwall.
5. stored digital teaching electronic stethoscope according to claim 4, it is characterized in that, described test surfaces is elastic metallic face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217952.9U CN204562206U (en) | 2015-04-10 | 2015-04-10 | A kind of stored digital teaching electronic stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217952.9U CN204562206U (en) | 2015-04-10 | 2015-04-10 | A kind of stored digital teaching electronic stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204562206U true CN204562206U (en) | 2015-08-19 |
Family
ID=53854907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520217952.9U Expired - Fee Related CN204562206U (en) | 2015-04-10 | 2015-04-10 | A kind of stored digital teaching electronic stethoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204562206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110720945A (en) * | 2019-08-23 | 2020-01-24 | 杭州蜂荟信息技术有限公司 | Method of intelligent auscultation system |
-
2015
- 2015-04-10 CN CN201520217952.9U patent/CN204562206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110720945A (en) * | 2019-08-23 | 2020-01-24 | 杭州蜂荟信息技术有限公司 | Method of intelligent auscultation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |