CN208447630U - A kind of stethoscope - Google Patents
A kind of stethoscope Download PDFInfo
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- CN208447630U CN208447630U CN201721337160.0U CN201721337160U CN208447630U CN 208447630 U CN208447630 U CN 208447630U CN 201721337160 U CN201721337160 U CN 201721337160U CN 208447630 U CN208447630 U CN 208447630U
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- pickup unit
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- auscultation head
- connecting tube
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Abstract
The utility model provides a kind of stethoscope.The stethoscope, comprising: the first pickup unit, the second pickup unit, auscultation head and data processing unit；First pickup unit is arranged in the cavity of the auscultation head；Second pickup unit is arranged in outside the cavity of the auscultation head；The data processing unit is connect with first pickup unit and second pickup unit respectively, for carrying out noise reduction process to the collected voice signal of first pickup unit according to the collected voice signal of the second pickup unit to obtain the voice signal after noise reduction.The utility model embodiment can reduce external noise to the influence degree of auscultation with stethoscope, improve doctor to the accuracy of judgement degree of organ sound.
Description
Technical field
The utility model relates to the field of medical instrument technology more particularly to a kind of stethoscopes.
Background technique
Doctor can try to find out the sound voluntarily issued in human body by stethoscope, such as: heart sound, breath sound etc..By listening
It examines, doctor can diagnose phase with variation (the frequency height of such as sound, power, interval time, noise) according to the characteristic of sound
Closing organ, whether there is or not lesions.
Stethoscope at work, inevitably will receive the interference of ambient noise.That is, stethoscope picks up into the human body
While organ sound, the noise of surrounding can be also picked up, such as: air-conditioning sound, Conversation Voice, footsteps, other Medical Devices hairs
Noise etc. out.These noises are mingled in organ sound, influence whether medical worker to the accurate judgement of organ sound,
Stethoscope is also resulted in noisy environment not to be available.
Utility model content
The utility model embodiment provides a kind of stethoscope, it is therefore intended that reduces external noise to the shadow of auscultation with stethoscope
The degree of sound improves doctor to the accuracy of judgement degree of organ sound.
Then, in one embodiment of the utility model, a kind of stethoscope is provided.The stethoscope includes: the first ten
Sound unit, the second pickup unit, auscultation head and data processing unit；The chamber of the auscultation head is arranged in first pickup unit
In vivo；Second pickup unit is arranged in outside the cavity of the auscultation head；The data processing unit is respectively with described first
Pickup unit is connected with second pickup unit, is used for according to the collected voice signal of the second pickup unit to described
The collected voice signal of first pickup unit carries out noise reduction process to obtain the voice signal after noise reduction.
Optionally, above-mentioned stethoscope, further includes: output unit；The output unit is connect with the data processing unit,
For the voice signal after exporting noise reduction to external equipment.
Optionally, the output unit includes the data-interface of external output.
Optionally, the auscultation head includes funnel-form shell, cylindrical shell and diaphragm；The cylindrical shell and the funnel
The connection of shape casing neck, and the cavity of the funnel-form shell is connected to the cavity of the cylindrical shell；The diaphragm setting exists
In the flaring of the funnel-form shell, to seal the flaring；The chamber of the cylindrical shell is arranged in first pickup unit
In vivo.
Optionally, the diameter of the cylindrical shell is greater than the diameter of the funnel-form casing neck, to accommodate described first
Pickup unit.
Optionally, above-mentioned stethoscope, further includes: connector；The necking end of the auscultation head is arranged in the connector；Institute
The second pickup unit is stated to be arranged on the connector.
Optionally, above-mentioned stethoscope, further includes: data acquisition unit；First pickup unit and second pickup
Unit passes through the data acquisition unit respectively and connect with the data processing unit, and the data acquisition unit is for being described
First pickup unit and second pickup unit provide operating voltage and/or to first pickup units and the second pickup list
The voice signal of member acquisition carries out analog/digital conversion processing.
Optionally, above-mentioned stethoscope, further includes: the first connecting tube and ear piece；First connecting tube and the auscultation head
Connection, and the cavity of first connecting tube is connected to the cavity of the auscultation head；The ear piece and first connecting tube connect
It connects, for listening to the voice signal transmitted from the auscultation head.
Optionally, the ear piece includes the first earplug and the second earplug, and first earplug passes through the second connecting tube and institute
State the connection of the first connecting tube；Second earplug is connect by third connecting tube with first connecting tube.
Optionally, first pickup unit and second pickup unit are microphone.
In technical solution provided by the embodiment of the utility model, intracorporal first pickup unit of chamber that auscultation head is arranged in is adopted
Collect the intracorporal voice signal of chamber, which is the mixed signal of human body organ sound and outside noise；It is arranged in auscultation head
Cavity outside the second pickup unit acquisition be voice signal outside cavity, which only includes outside noise, is not wrapped
Include human organ sound；Data processing unit acquires the second pickup unit according to the outside noise that the second pickup unit acquires
Mixed sound, which carries out noise reduction process, can eliminate the outside noise in mixed sound, obtain clean human organ sound.It can
See, stethoscope provided by the embodiment of the utility model can reduce the influence that outside noise auscultates doctor, improve doctor's auscultation
Accuracy.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the stethoscopic structural schematic diagram that an embodiment of the present invention provides；
Fig. 2 is the stethoscopic structural schematic diagram that another embodiment of the utility model provides；
Fig. 3 is the stethoscope internal circuit schematic diagram that an embodiment of the present invention provides；
Fig. 4 is the stethoscope internal circuit schematic diagram that another embodiment of the utility model provides.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The term used in the utility model embodiment and is not intended to merely for for the purpose of describing particular embodiments
Limit the utility model.The utility model embodiment and the "an" of singular used in the attached claims,
" described " and "the" are also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise to
It is two kinds few, but be not excluded for comprising at least one situation.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though may be described using term first, second, third, etc. in the utility model embodiment
XXX, but these XXX should not necessarily be limited by these terms.These terms are only used to for XXX being distinguished from each other out.For example, not departing from this reality
In the case where new embodiment range, the first XXX can also be referred to as the 2nd XXX, and similarly, the 2nd XXX can also be claimed
For the first XXX.
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to monitoring ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit monitoring (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when monitoring (statement
Condition or event) when " or " in response to monitoring (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or system including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also
There are other identical elements.
Fig. 1 is the stethoscopic structural schematic diagram that an embodiment of the present invention provides and Fig. 3 is that the utility model one is real
The stethoscope internal circuit schematic diagram of example offer is provided.As shown in figures 1 and 3, which includes: the first pickup unit 1, second
Pickup unit 2, auscultation head 3 and data processing unit 4；First pickup unit 1 is arranged in the cavity of the auscultation head 3；
Second pickup unit 2 is arranged in outside the cavity of the auscultation head 3；The data processing unit 4 is respectively with described the first ten
Sound unit 1 and second pickup unit 2 connection, are used for according to the collected voice signal of second pickup unit 2 to institute
It states the collected voice signal of the first pickup unit 1 and carries out noise reduction process to obtain the voice signal after noise reduction.
Wherein, the auscultation head 3 can be bell auscultation head or membranous type auscultation head.Bell auscultation head can hear 20Hz extremely
The sound of the wavelength of 200Hz, typical from heart valve opening and closing or the reflux of blood flow or the sound of vortex, due to this
A little sound are relatively low tones.Patient is required to suspend breathing, when in use to listen to heart sound.Membranous type auscultation head can be heard
The sound of the wavelength of 100Hz to 1000Hz, typical from the sound of lung and the sound vibrations of intestines.It in practical applications, can root
Various types of auscultation heads are selected according to actual needs, the present embodiment is not especially limited this.
In technical solution provided by the embodiment of the utility model, intracorporal first pickup unit of chamber that auscultation head is arranged in is adopted
Collect the intracorporal voice signal of chamber, which is the mixed signal of human body organ sound and outside noise；It is arranged in auscultation head
Cavity outside the second pickup unit acquisition be voice signal outside cavity, which only includes outside noise, is not wrapped
Include human organ sound；Data processing unit acquires the second pickup unit according to the outside noise that the second pickup unit acquires
Mixed sound, which carries out noise reduction process, can eliminate the outside noise in mixed sound, obtain clean human organ sound.It can
See, stethoscope provided by the embodiment of the utility model can reduce the influence that outside noise auscultates doctor, improve doctor's auscultation
Accuracy.
Further, above-mentioned stethoscope may also include that earphone or output unit.In a kind of achievable scheme, data
Processing unit 4 is connect with earphone, and the voice signal after noise reduction is exported to earphone, is got in this way, doctor can be listened by earphone
Patient's body organ sound carry out state of an illness judgement.
In another achievable scheme, such as Fig. 2 stethoscope further include: output unit 9, the output unit 9 and institute
The connection of data processing unit 4 is stated, for the voice signal after exporting noise reduction to external equipment.It is dropped in data processing unit 4
Voice signal after voice signal after making an uproar, after exporting noise reduction to external equipment by output unit 9.Wherein, external equipment can
Think the terminals such as computer or mobile phone.External equipment can be shown on its display screen after receiving the voice signal after noise reduction
Show and/or stored, in this way, doctor can understand in time patient profiles according to the content of display, it is subsequent can also be according to storage
Content carries out illness analysis to patient.
Wherein, the output unit includes the data-interface of external output, such as: USB interface.In this way, output is single
Member can be carried out data transmission by USB data line and external equipment.
Further, as shown in Figure 1, the auscultation head includes funnel-form shell 31, cylindrical shell 32 and diaphragm；The circle
Column shell 32 is connect with 31 neck 310 of funnel-form shell, and the cavity of the funnel-form shell 31 and the cylindrical shell
32 cavity connection；The diaphragm is arranged in the flaring 311 of the funnel-form shell 31, to seal the flaring 311；It is described
First pickup unit 1 is arranged in the cavity of the cylindrical shell 32.Wherein, the diaphragm (not shown) can be vibration diaphragm.
The cylindrical shell 32 can be the cylindrical shell without bottom cover that has top cover.
In the present embodiment, auscultation head 3 is using membranous type auscultation head.When in use, by the flaring of funnel-form shell 31
Diaphragm on 311 is close to patient skin, and the vibration of patient skin is communicated to diaphragm, and the vibration of diaphragm is so that in 3 cavity of auscultation head
Air pulsation, to convey sound.Intracorporal first pickup unit 1 of chamber that auscultation head 3 is arranged in this way can collect human body
Organ sound.
The diameter of the cylindrical shell 32 can be identical with the diameter of 31 neck 310 of funnel shell, can also be different,
The cylindrical shell 32 can be an integral molding structure with the funnel shell 31.If the size for the first pickup unit 32 selected
Less than 31 neck 310 of funnel shell diameter when, then can be selected diameter it is identical with the diameter of 31 neck 310 of funnel shell
Cylindrical shell 32；If the size for the first pickup unit 32 selected is greater than the diameter of 31 neck 310 of funnel shell, it can be selected
Diameter is greater than the cylindrical shell 32 of the diameter of 31 neck 310 of funnel shell, to accommodate first pickup unit 1.
In general, the cavity at the flaring of funnel shell 31 311 is far longer than the cavity of the neck 310 of funnel shell 31.Work as expansion
After the intracorporal air of chamber at mouthfuls 311 shakes under the vibration of diaphragm, when being transmitted to the intracorporal air of chamber of neck 310, air
Vibration amplitude can increase substantially, in this way, can also enhance close to the pickup effect of the first pickup unit 1 that neck 310 is arranged,
The sound amplitude picked up is larger.
Further, as shown in Figure 1, above-mentioned stethoscope further include: connector 5；The connector 5 is arranged in the auscultation
The necking end of head；Second pickup unit 2 is arranged on the connector 2.
It should be noted that the necking end of the auscultation head is sealing structure.The setting of second pickup unit 2 is being auscultated
It is completely isolated with intracorporal first pickup unit 1 of chamber that auscultation head is arranged in first 3 joint outer part 5, the second pickup unit
The voice signal of 2 acquisitions is ambient noise.
First pickup unit 1 and the second pickup unit 2 can be microphone or ceramic pick-up.Currently, microphone
It is divided into data microphone and simulation microphone.If the first pickup unit 1 and the second pickup unit 2 are simulation microphone, in number
Before the voice signal acquired according to processing unit processes the first pickup unit 1 and the second pickup unit 2, also need collected mould
Onomatopoeia sound signal is converted into digital audio signal.It therefore, need to be to collected before data processing unit handles voice signal
Voice signal carries out analog/digital conversion processing.
Further, as shown in Figure 2 and Figure 4, above-mentioned stethoscope further include: data acquisition unit 6；The first pickup list
Member 1 and second pickup unit 2 are connect by the data acquisition unit 6 with the data processing unit 4 respectively, the number
It is used to provide operating voltage and/or to described for first pickup unit 1 and second pickup unit 2 according to acquisition unit 6
First pickup unit 1 and the voice signal of the second pickup unit 2 acquisition carry out analog/digital conversion processing.The data acquisition unit 6
It can be connect by USB with the data processing unit 4.
Such as: PCM (Pulse-code modulation, pulse code modulation) can be used, analog/digital is carried out to voice signal
Conversion process is sampled to continuously varying analog signal, quantifies and encodes generation data-signal.
In order to avoid caused by the long-term collision of the first pickup unit 1 or the second pickup unit 2 with stethoscope contact component
The damage of first pickup unit 1 or the second pickup unit 2 and impact sound are received by the first pickup unit 1 or the second pickup unit 2
Error Diagnostics caused by collecting.In the present embodiment, the outside of the first pickup unit 1 and the second pickup unit 2 is enclosed with leakage and picks up
The rubber sleeve of line.External rubber sleeve can play a very good protection and buffer function, effectively reduces impact sound.
Further, as shown in Figure 1, above-mentioned stethoscope further include: the first connecting tube 7 and ear piece；First connecting tube 7
It is connect with the auscultation head 3, and the cavity of first connecting tube 7 is connected to the cavity of the auscultation head 3；The ear piece and institute
The connection of the first connecting tube 7 is stated, for listening to the voice signal transmitted from the auscultation head 3.Wherein, first connecting tube 7
It can be PVC or metal hose.Preferably, first connecting tube 7 is connected at 31 neck 310 of funnel shell, due to
Air vibration amplitude at neck 310 is big, can effectively increase the voice signal spread out of at ear piece in this way.
In the present embodiment, the sound in auscultation head 3 is transferred to earpiece part by the first connecting tube 7, is listened to by doctor
It arrives.Doctor can export the voice signal to terminal with reference to the voice signal and output unit that earpiece part transmits, and come
Judge patient body health status.In addition, doctor also may be selected directly to listen to human body by ear piece under more quiet scene
Internal's sound.As it can be seen that the stethoscope in the present embodiment provides multiple choices for doctor.
The ear piece includes at least one earplug.Preferably, as shown in Figure 1, the ear piece includes two earplugs, respectively
First earplug 81 and the second earplug 82, first earplug 81 are connect by the second connecting tube 100 with first connecting tube 7；
Second earplug 82 is connect by third connecting tube 101 with first connecting tube 7.Second connecting tube 100, third connecting tube
101 can be an integral molding structure with first connecting tube 7, and second connecting tube 100 and the third connecting tube 101 can
Think PVC or metal hose.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of stethoscope characterized by comprising the first pickup unit, the second pickup unit, auscultation head and data processing list
Member；
First pickup unit is arranged in the cavity of the auscultation head；
Second pickup unit is arranged in outside the cavity of the auscultation head；
The data processing unit is connect with first pickup unit and second pickup unit respectively, for according to
The collected voice signal of second pickup unit to the collected voice signal of first pickup unit carry out noise reduction process with
Voice signal after obtaining noise reduction.
2. stethoscope according to claim 1, which is characterized in that further include: output unit；
The output unit is connect with the data processing unit, for the voice signal after exporting noise reduction to external equipment.
3. stethoscope according to claim 2, which is characterized in that the output unit includes that the data of external output connect
Mouthful.
4. stethoscope according to any one of claim 1-3, which is characterized in that the auscultation head includes funnel-form shell
Body, cylindrical shell and diaphragm；
The cylindrical shell is connect with the funnel-form casing neck, and the cavity of the funnel-form shell and the cylindrical shell
Cavity connection；
The diaphragm is arranged in the flaring of the funnel-form shell, to seal the flaring；
First pickup unit is arranged in the cavity of the cylindrical shell.
5. stethoscope according to claim 4, which is characterized in that the diameter of the cylindrical shell is greater than the funnel-form shell
The diameter of body neck, to accommodate first pickup unit.
6. stethoscope according to any one of claim 1-3, which is characterized in that further include: connector；
The necking end of the auscultation head is arranged in the connector；
Second pickup unit is arranged on the connector.
7. stethoscope according to any one of claim 1-3, which is characterized in that further include: data acquisition unit；
First pickup unit and second pickup unit pass through the data acquisition unit and the data processing respectively
Unit connection, the data acquisition unit are used to provide operating voltage for first pickup unit and second pickup unit
And/or the voice signal acquired to first pickup unit and second pickup unit carries out analog/digital conversion processing.
8. stethoscope according to any one of claim 1-3, which is characterized in that further include: the first connecting tube and ear piece；
First connecting tube is connect with the auscultation head, and the cavity of the cavity of first connecting tube and the auscultation head connects
It is logical；
The ear piece is connect with first connecting tube, for listening to the voice signal transmitted from the auscultation head.
9. stethoscope according to claim 8, which is characterized in that the ear piece includes the first earplug and the second earplug, institute
The first earplug is stated to connect by the second connecting tube with first connecting tube；
Second earplug is connect by third connecting tube with first connecting tube.
10. stethoscope according to any one of claim 1-3, which is characterized in that first pickup unit and described
Second pickup unit is microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337160.0U CN208447630U (en) | 2017-10-17 | 2017-10-17 | A kind of stethoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337160.0U CN208447630U (en) | 2017-10-17 | 2017-10-17 | A kind of stethoscope |
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| Publication Number | Publication Date |
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| CN208447630U true CN208447630U (en) | 2019-02-01 |
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ID=65140690
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721337160.0U Active CN208447630U (en) | 2017-10-17 | 2017-10-17 | A kind of stethoscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520449A (en) * | 2020-04-13 | 2021-10-22 | 中国人民解放军海军特色医学中心 | Electronic auscultation system and method |
| CN113616233A (en) * | 2020-05-06 | 2021-11-09 | 北京金航道科技有限公司 | Sound pickup method of stethoscope and stethoscope |
| WO2022047905A1 (en) * | 2020-09-01 | 2022-03-10 | 苏州中科速衡电子有限公司 | Active noise reduction module of acoustoelectric sensor and sound monitor |
| CN114515164A (en) * | 2022-02-08 | 2022-05-20 | Oppo广东移动通信有限公司 | Acoustic signal acquisition method, acoustic signal acquisition device, stethoscope, and storage medium |
-
2017
- 2017-10-17 CN CN201721337160.0U patent/CN208447630U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520449A (en) * | 2020-04-13 | 2021-10-22 | 中国人民解放军海军特色医学中心 | Electronic auscultation system and method |
| CN113520449B (en) * | 2020-04-13 | 2023-05-05 | 中国人民解放军海军特色医学中心 | Electronic auscultation system and method |
| CN113616233A (en) * | 2020-05-06 | 2021-11-09 | 北京金航道科技有限公司 | Sound pickup method of stethoscope and stethoscope |
| WO2022047905A1 (en) * | 2020-09-01 | 2022-03-10 | 苏州中科速衡电子有限公司 | Active noise reduction module of acoustoelectric sensor and sound monitor |
| CN114515164A (en) * | 2022-02-08 | 2022-05-20 | Oppo广东移动通信有限公司 | Acoustic signal acquisition method, acoustic signal acquisition device, stethoscope, and storage medium |
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