CN208435673U - A kind of easy sensor of internal arteriovenous fistula noise - Google Patents
A kind of easy sensor of internal arteriovenous fistula noise Download PDFInfo
- Publication number
- CN208435673U CN208435673U CN201820356469.2U CN201820356469U CN208435673U CN 208435673 U CN208435673 U CN 208435673U CN 201820356469 U CN201820356469 U CN 201820356469U CN 208435673 U CN208435673 U CN 208435673U
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- China
- Prior art keywords
- cavity shell
- audio collection
- resonance cavity
- collection microphone
- arteriovenous fistula
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Abstract
The utility model provides a kind of easy sensor of internal arteriovenous fistula noise, including host, auscultation head, loudspeaker, the auscultation head includes resonance cavity shell, responant diaphragm, audio collection microphone, the host includes control circuit, power supply, the control circuit is for amplifying and being filtered to the electric signal converted by audio collection microphone, and electric signal is converted to acoustical signal by treated, the power supply is used to provide power supply for audio collection microphone, control circuit and loudspeaker, and the loudspeaker and host electrical connection are for exporting amplified sound.The easy sensor of internal arteriovenous fistula noise, vascular murmur amplification, enables general patient to hear vascular murmur.
Description
Technical field
The utility model relates to medical instruments fields, more particularly to a kind of easy sensor of internal arteriovenous fistula noise.
Background technique
It is well known that internal arteriovenous fistula is one of surgical operation, it is mainly used for hemodialysis.Arteriovenous internal fistula formation is
Forearm is made a suture close to the artery of wrist and neighbouring vein, made after coincideing by a kind of minor operation of vascular anastomosis
Arterial blood is flowed in vein, forms an internal arteriovenous fistula.The blood vessel of internal arteriovenous fistula can provide for hemodialysis to be filled
The blood of foot provides safeguard for the adequacy of dialysis treatment.Haemodialysis be patients with chronic renal failure primary treatments it
One, seem particularly significant to the protection of internal arteriovenous fistula, can listen, the step of internal fistula noise is key foundation can be audible.Existing mesh
Before, it is commonly exactly stethoscope, stethoscope is medical apparatus, and patient will not use, or can not listen noise, this just makes medical worker
The case where either patient can not grasp internal arteriovenous fistula in time, interferes the further treatment of patient.
Summary of the invention
The technical problems to be solved in the utility model is that vascular murmur is amplified, and general patient is enable to hear that blood vessel is miscellaneous
Sound.
To solve the above-mentioned problems, the utility model provides a kind of easy sensor of internal arteriovenous fistula noise, including host, auscultation
Head, loudspeaker, the auscultation head include resonance cavity shell, responant diaphragm, audio collection microphone, and the resonance cavity shell is for making
The acoustical signal that the arteriovenous of measured issues generates resonance, and to obtain resonant acoustic signal, the responant diaphragm is used for sealed cavity
Shell, and contacted in auscultation with the body surface of measured, the acoustical signal for issuing the arteriovenous of measured gives off through body surface
Carry out the air column in pusher dynamic resonance cavity shell, so that air column is generated the continuous checker effect of expansion and compression, to produce
Raw resonance, the audio collection microphone is for acquiring the resonant acoustic signal obtained by resonance cavity shell, and by the resonant acoustic
Signal is converted to electric signal, and the audio collection microphone and the responant diaphragm forward direction are relatively connected to resonance cavity shell
In bottom, the host includes control circuit, power supply, and the control circuit is used for the telecommunications converted by audio collection microphone
Number amplify and be filtered, and will treated that electric signal is converted to acoustical signal, the power supply is used to pass for audio collection
It is defeated for amplified sound to be carried out that sound device, control circuit and loudspeaker provide power supply, the loudspeaker and host electrical connection
Out.
The audio collection microphone is electret capacitor type audio collection biography as a further improvement of the utility model,
Sound device, and the area of the audio collection microphone and the responant diaphragm are adapted.Using the face of the audio collection microphone
The long-pending design being adapted with the responant diaphragm is to acquire audio collection microphone preferably and receive responant diaphragm
Acoustical signal.
The resonance cavity shell is by metal material or nonmetallic materials shape as a further improvement of the utility model,
At.It is to keep the easy sensor of internal arteriovenous fistula suitable using the design that resonance cavity shell is made of metal material and nonmetallic materials
Answer different sick human needs.
The resonance cavity shell is the oval resonance cavity shell to raise upward as a further improvement of the utility model,
Or square or cuboid resonance cavity shell or tubaeform resonance cavity shell.Use resonance cavity shell for oval resonance cavity shell
Or the design of square or cuboid resonance cavity shell or tubaeform resonance cavity shell, it is in order to which the easy sensor of internal arteriovenous fistula adapts to
The use habit of different patients enhances the usability of internal arteriovenous fistula.
It is improved as the utility model into one, the control circuit includes that pre-amplification circuit, filter circuit, power are put
Big circuit, the pre-amplification circuit, filter circuit and power amplification circuit electrical connection, the pre-amplification circuit is for amplifying
The electric signal converted by audio collection microphone, the filter circuit is for being filtered the electric signal of amplification, the function
Rate amplifying circuit is used to filtered electric signal being converted to acoustical signal.
As improving into one for the utility model, the loudspeaker is horn-like.It is horn-like using loudspeaker is arranged to
Design be to make patient or medical worker, be more convenient, be easier to hear in arteriovenous whether noise.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the better embodiment of easy sensor of internal arteriovenous fistula noise described in the utility model；
Fig. 2 is a kind of block diagram of the better embodiment of easy sensor of internal arteriovenous fistula noise described in the utility model.
Wherein 1 is resonance cavity shell；2 be audio collection microphone；3 be control circuit；4 be loudspeaker；5 be power supply；6
For responant diaphragm.
Specific embodiment
Technical solution in embodiment in order to enable those skilled in the art to better understand the present invention, and make of the invention real
The above objects, features, and advantages for applying example can be more obvious and easy to understand, with reference to the accompanying drawing to technical side in the embodiment of the present invention
Case is described in further detail.
To solve the above-mentioned problems, the utility model provides a kind of easy sensor of internal arteriovenous fistula noise, including host, auscultation
Head, loudspeaker 4, the auscultation head includes resonance cavity shell 1, responant diaphragm 6, audio collection microphone 2, the resonance cavity shell 1
Acoustical signal for issuing the arteriovenous of measured generates resonance, and to obtain resonant acoustic signal, the responant diaphragm 6 is for sealing
Resonance cavity shell 1, and contacted in auscultation with the body surface of measured, the acoustical signal for issuing the arteriovenous of measured is through body surface
The air column in pusher dynamic resonance cavity shell 1 is radiated, air column is made to generate the continuous checker effect of expansion and compression,
To generate resonance, the audio collection microphone 2 is used to acquire the resonant acoustic signal obtained by resonance cavity shell 1, and will
The resonant acoustic signal is converted to electric signal, and the audio collection microphone 2 and the responant diaphragm 6 it is positive be relatively connected to it is humorous
Shake the bottom of cavity shell 1, and the host includes control circuit 3, power supply 5, and the control circuit 3 is used for by audio collection biography
The electric signal that sound device 2 is converted is amplified and is filtered, and electric signal is converted to acoustical signal, the power supply 3 by treated
For providing power supply for audio collection microphone 2, control circuit 3 and loudspeaker 4, the loudspeaker 4 and host electrical connection are used for
Amplified sound is exported.
Referring to Fig. 1, the perspective view of an easy sensor of internal arteriovenous fistula noise is provided for the utility model.As shown in Figure 1,
After patient implements the operation of internal arteriovenous fistula, it is susceptible that internal arteriovenous fistula noise involved by the utility model can be used
Device is tightly attached to resonance cavity shell 1 on arm etc. in physical feelings, make that the arteriovenous of measured issues by body surface radiation
Acoustical signal generates resonance, and resonant acoustic signal is converted to electric signal, is used for using host to the electricity converted by auscultation head
Signal is amplified and is filtered, and electric signal is converted to acoustical signal by treated, and last loudspeaker 4 passes through for playing
The acoustical signal of host conversion.
With continued reference to Fig. 1, auscultation head further comprises resonance cavity shell 1, responant diaphragm 6 and audio collection microphone 2.Its
In, the acoustical signal that resonance cavity shell 1 is used to that internal organs to be made to issue generates resonance, to obtain resonant acoustic signal.Responant diaphragm 6 is for sealing
Resonance cavity shell 1, and contacted in auscultation with body surface, the acoustical signal for issuing the arteriovenous of measured is radiated through body surface
Air column in pusher dynamic resonance cavity shell 1 makes air column generate the continuous checker effect of expansion and compression, to generate
Resonance.Audio collection microphone 2, which is used to acquire, passes through the obtained resonant acoustic signal of resonance cavity shell 1, and by the resonant acoustic signal
Be converted to electric signal.
With continued reference to Fig. 1, host further comprises control circuit 3 and power unit 5.Wherein, control circuit 3 is used for logical
The electric signal for crossing the conversion of audio collection microphone 2 is amplified and is filtered, and electric signal is converted to sound letter by treated
Number.Power supply 5 is used to provide power supply for audio collection microphone 2 and control circuit 3.
Referring to fig. 2, Fig. 2 shows a kind of structure charts of easy sensor of internal arteriovenous fistula noise.As shown in Fig. 2, control circuit 3
It further include pre-amplification circuit, filter circuit and power amplification circuit, wherein pre-amplification circuit passes through for amplifying
The electric signal that audio collection microphone 2 is converted；Filter circuit is for being filtered the electric signal of amplification；Power amplification circuit is used
In filtered electric signal is converted to acoustical signal.The acoustical signal converted by power amplification circuit is passed to people by loudspeaker 4
Ear.
With continued reference to Fig. 2, power supply 5 is audio collection microphone 2, loudspeaker 4, pre-amplification circuit, filter circuit and function
Rate amplifying circuit provides power supply.
It should be noted that the power supply 5, loudspeaker 4, pre-amplification circuit, power amplification circuit and filter circuit are
It is well known that be the common knowledge in daily production and living field, therefore, it no longer excessively repeats herein.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow general principle of the invention and including the undocumented this technology necks of the utility model
Common knowledge or conventional techniques in domain.The description and examples are only to be considered as illustrative, the utility model it is real
Scope and spirit are pointed out by claim above.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (6)
1. a kind of easy sensor of internal arteriovenous fistula noise, including host, auscultation head, loudspeaker (4), it is characterised in that: the auscultation
Head includes resonance cavity shell (1), responant diaphragm (6), audio collection microphone (2), and the resonance cavity shell (1) is for making measured
The acoustical signal that issues of arteriovenous generate resonance, to obtain resonant acoustic signal, the responant diaphragm (6) is used for sealed cavity shell
(1), it and in auscultation with the body surface of measured contacts, the acoustical signal for issuing the arteriovenous of measured is radiated through body surface
Air column in pusher dynamic resonance cavity shell (1) makes air column generate the continuous checker effect of expansion and compression, to produce
Raw resonance, the audio collection microphone (2) are used to acquire the resonant acoustic signal obtained by resonance cavity shell (1), and should
Resonant acoustic signal is converted to electric signal, and the audio collection microphone (2) is relatively connected to the responant diaphragm (6) forward direction
The bottom of resonance cavity shell, the host include control circuit (3), power supply (5), and the control circuit (3) is used for passing through sound
The electric signal of frequency acquisition microphone (2) conversion is amplified and is filtered, and electric signal is converted to acoustical signal by treated,
The power supply (5) is used to provide power supply, the loudspeaker for audio collection microphone (2), control circuit (3) and loudspeaker (4)
(4) and host electrical connection is for exporting amplified sound.
2. the easy sensor of internal arteriovenous fistula noise according to claim 1, it is characterised in that: the audio collection microphone
It (2) is electret capacitor type audio collection microphone, and the area of the audio collection microphone (2) is mutually fitted with the responant diaphragm
It answers.
3. the easy sensor of internal arteriovenous fistula noise according to claim 2, it is characterised in that: the resonance cavity shell (1) by
Metal material or nonmetallic materials are formed.
4. the easy sensor of internal arteriovenous fistula noise according to claim 3, it is characterised in that: the resonance cavity shell (1) is
The oval resonance cavity shell or square or cuboid resonance cavity shell or tubaeform resonance cavity shell to raise upward.
5. the easy sensor of internal arteriovenous fistula noise according to claim 4, it is characterised in that: the control circuit (3) includes
Pre-amplification circuit, filter circuit, power amplification circuit, the pre-amplification circuit, filter circuit and power amplification circuit electricity
Connection, the pre-amplification circuit are used to amplify the electric signal converted by audio collection microphone (2), and the filter circuit is used
It is filtered in the electric signal of amplification, the power amplification circuit is used to filtered electric signal being converted to acoustical signal.
6. the easy sensor of internal arteriovenous fistula noise described in -5 any one according to claim 1, it is characterised in that: the loudspeaker
It (4) is horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356469.2U CN208435673U (en) | 2018-03-15 | 2018-03-15 | A kind of easy sensor of internal arteriovenous fistula noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356469.2U CN208435673U (en) | 2018-03-15 | 2018-03-15 | A kind of easy sensor of internal arteriovenous fistula noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208435673U true CN208435673U (en) | 2019-01-29 |
Family
ID=65093381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820356469.2U Expired - Fee Related CN208435673U (en) | 2018-03-15 | 2018-03-15 | A kind of easy sensor of internal arteriovenous fistula noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208435673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329507A (en) * | 2020-02-20 | 2020-06-26 | 吉林大学 | Special arteriovenous internal fistula detector of uremia patient |
-
2018
- 2018-03-15 CN CN201820356469.2U patent/CN208435673U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329507A (en) * | 2020-02-20 | 2020-06-26 | 吉林大学 | Special arteriovenous internal fistula detector of uremia patient |
| CN111329507B (en) * | 2020-02-20 | 2021-02-02 | 吉林大学 | Special arteriovenous internal fistula detector of uremia patient |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 |