CN208769808U - A kind of stethoscope with heart rate detecting function - Google Patents
A kind of stethoscope with heart rate detecting function Download PDFInfo
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- CN208769808U CN208769808U CN201721445088.3U CN201721445088U CN208769808U CN 208769808 U CN208769808 U CN 208769808U CN 201721445088 U CN201721445088 U CN 201721445088U CN 208769808 U CN208769808 U CN 208769808U
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- heart rate
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Abstract
The utility model discloses a kind of stethoscopes with heart rate detecting function, including stethoscope ontology, stethoscope ontology includes auscultation head, sound guide tube, three-pronged connector and earpiece, resonance plate is equipped in auscultation head, the utility model creation further includes heart rate sensor, signal amplification module, base modules, comparison module, counting module and display module, heart rate sensor output end is connected with signal amplification module input terminal, signal amplification module output end and base modules output end are connected with comparison module input terminal respectively, comparison module output end is connected with counting module input terminal, counting module output end is connected with display module input terminal.Heart of patient jitter is converted into electric signal by heart rate sensor by the utility model, effective heartbeat every time is judged by comparing module, the heart rate value for calculating patient according to the output signal of comparison module using counting module, improves the accuracy of heart rate detection.The utility model is used to detect the heart rate value of patient.
Description
Technical field
The utility model relates to the field of medical instrument technology, more specifically to a kind of stethoscope structure.
Background technique
When hospital outpatient register and sees a doctor, doctor requires to auscultate patient using stethoscope first patient,
Doctor, mainly to observe heart of patient bounce situation, mainly observes heart sound and heart rate situation, wherein examining using stethoscope
Heart rate measuring is mainly the bounce situation for detecting patient's heart per minute.
When doctor is detected using heart rate situation of traditional stethoscope to patient, mainly pass through artificial subjective calculating
Patient heart rate situation, doctor need to spend the time of the preceding paragraph to estimate the heart rate of patient, while heart rate detection is due to main
It is to calculate judgement by the subjective of doctor, causes the heart rate detection of patient to lack and objectively judge benchmark, sentence to increase mistake
Disconnected probability.
Utility model content
Technical problem to be solved by the utility model is: providing a kind of auscultation for capableing of intelligent display patient heart rate situation
Device.
The solution that the utility model solves its technical problem is:
A kind of stethoscope with heart rate detecting function, including stethoscope ontology, the stethoscope ontology include auscultation head, lead
Sound tube, three-pronged connector and earpiece, the auscultation head are connected with earpiece by three-pronged connector by sound guide tube, are set in the auscultation head
Have a resonance plate, the utility model further include heart rate sensor, signal amplification module, base modules, comparison module, counting module with
And display module；Wherein the signal amplification module is for input signal to be filtered and be enlarged, the base modules
For providing reference voltage signal, the comparison module is used for comparison signal amplification module and base modules output voltage signal
Size, the counting module be used for according to comparison module output waveform calculate heartbeat number, i.e., calculating heart rate value, it is described
Display module display calculates resulting heart rate value, and the display module may be mounted on three-pronged connector, also can be set at it
His position, by wireless communication module, such as bluetooth module and counting module communicate to connect；The heart rate sensor output end with
Signal amplification module input terminal is connected, the signal amplification module output end and base modules output end respectively with comparison module
Input terminal is connected, and the comparison module output end is connected with counting module input terminal, the counting module output end and display mould
Block input terminal is connected, and the heart rate sensor is mounted on inside auscultation head and resonance plate mechanical oscillation signal is converted into telecommunications
Number.
As a further improvement of the above technical scheme, the heart rate sensor includes inductance coil and the constant magnetic of generation
The permanent magnet of field, the inductance coil are arranged on resonance plate, and the permanent magnet is mounted on inside auscultation head, the inductance coil
It is connected with signal amplification module input terminal.
As a further improvement of the above technical scheme, the signal amplification module includes that filter unit and amplification are single
Member, the filter unit are low-pass filter, and the heart rate sensor output end is connected with filter unit input terminal, the filtering
Unit output end is connected with amplifying unit input terminal, and the amplifying unit output end is connected with comparison module input terminal.
As a further improvement of the above technical scheme, the filter unit includes capacitor C1, capacitor C2, resistance R1, electricity
Resistance R2, resistance R3, resistance R4 and transport and placing device A1, the resistance R1 and resistance R2 are connected on inductance coil and the same phase of transport and placing device A1
Between input terminal, the resistance R3 and resistance R4 are connected between transport and placing device A1 output end and ground terminal, and the transport and placing device A1 is anti-
Mutually input terminates at the tie point of resistance R3 and resistance R4, and the transport and placing device A1 output end is connect by capacitor C1 in resistance R1 and electricity
The tie point of R2 is hindered, the both ends the capacitor C2 are connected with transport and placing device A1 non-inverting input terminal with ground terminal respectively, the transport and placing device A1
Output end is connected with amplifying unit input terminal.
As a further improvement of the above technical scheme, the amplifying unit includes the amplifier core of model MAX9812
Piece, the filter unit output end are connected with amplifier chip input terminal, the amplifier chip output end and comparison module phase
Even.
As a further improvement of the above technical scheme, the counting module includes singlechip chip, the monolithic machine core
Piece input terminal is connected with comparison module output end, and the singlechip chip output end is connected with display module input terminal.
The beneficial effects of the utility model are: the utility model is converted heart of patient jitter by heart rate sensor
At electric signal, effective heartbeat every time is judged by comparing module, is believed using counting module according to the output of comparison module
The heart rate value for number calculating patient, and result is output in display module, doctor is facilitated to observe, during avoiding traditional treatment
The heart rate value that patient is judged by doctor's subjective consciousness improves the accuracy of heart rate detection.The utility model is for detecting patient
Heart rate value.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the stethoscope structure schematic diagram of the utility model；
Fig. 2 is the circuit module block diagram of the utility model；
Fig. 3 is the signal amplification module embodiment schematic diagram of the utility model.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection relationships being previously mentioned in text, not single finger element directly connects, and referring to can be according to specific implementation feelings
Condition, by adding or reducing connecting element, Lai Zucheng more preferably circuit structure.Each technical characteristic in the invention,
It can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1~Fig. 3, the utility model provide a kind of stethoscope with heart rate detecting function, including stethoscope sheet
Body, the stethoscope ontology include auscultation head 1, sound guide tube 2, three-pronged connector 3 and earpiece 4, and the auscultation head 1 is by sound guide tube 2
Connected by three-pronged connector 3 with earpiece 4, be equipped with resonance plate in the auscultation head 1, the utility model further include heart rate sensor,
Signal amplification module, base modules, comparison module, counting module and display module；Wherein the signal amplification module is used for
Input signal is filtered and is enlarged, the base modules are used for providing reference voltage signal, the comparison module
In the size of comparison signal amplification module and base modules output voltage signal, the counting module is used for according to comparison module
Output waveform calculates heartbeat number, i.e. calculating heart rate value, and the display module display calculates resulting heart rate value, described aobvious
Show that module may be mounted on three-pronged connector 3, also can be set in other positions, by wireless communication module, such as bluetooth mould
Block and counting module communicate to connect；The heart rate sensor output end is connected with signal amplification module input terminal, and the signal is put
Big module output end and base modules output end are connected with comparison module input terminal respectively, the comparison module output end and meter
Number module input is connected, and the counting module output end is connected with display module input terminal, and the heart rate sensor is mounted on
Resonance plate mechanical oscillation signal is simultaneously converted into electric signal by 1 inside of auscultation head.
The invention working principle is as follows, believes acoustical vibration caused by heartbeat first with heart rate sensor
Number be converted into electric signal, which be input to signal amplification module and is filtered and is enlarged, human heart it is each
Bounce, when being converted into voltage signal, each bounce period can have a highest voltage magnitude, when signal amplification module is every
When output is once greater than the amplitude voltage of base modules output voltage, comparison module will export a specific level signal, should
The specific visual physical circuit connection type of level signal and determine, counting module is used to calculate the spy that two comparison modules export
Determine the time difference between level, i.e., the time interval of each heartbeat, is jumped to calculate heart within one minute indirectly
Dynamic number, the i.e. heart rate value of patient.
It should be noted that although the utility model is related to the technological means of software program, but there is no carry out it
It improves, the utility model mainly improves hardware circuit involved in stethoscope.
Heart of patient jitter is converted into electric signal by heart rate sensor by the utility model, is sentenced by comparing module
Disconnected effective heartbeat every time calculates the heart rate value of patient using counting module according to the output signal of comparison module, and will
As a result it is output in display module, doctor is facilitated to observe, avoid traditional treatment and pass through doctor's subjective consciousness judgement disease in the process
The heart rate value of people improves the accuracy of heart rate detection.
It is further used as preferred embodiment, the heart rate sensor is used to acquire the ticktack message of heart of patient
Number, and convert thereof into electric signal.It is described in specific embodiment of the present invention to realize the heart rate sensor function
Heart rate sensor includes inductance coil and the permanent magnet for generating stationary magnetic field, and the inductance coil is arranged on resonance plate, institute
It states permanent magnet to be mounted on inside auscultation head 1, the inductance coil is connected with signal amplification module input terminal.Human heart it is each
Bounce can all generate sound, and sound, which enters, makes internal resonance plate generate vibration in auscultation head 1, to drive inductance coil
The movement of cutting magnetic induction line is done in magnetic field, generates corresponding electric signal.
It is further used as preferred embodiment, is deposited in the electric signal that heart rate sensor described in the utility model is exported
It in certain high frequency spurs signal, is easy to impact the judging result of comparison module, while heart rate sensor is exported
Electric signal is weaker, and amplitude is lower, and in conjunction with above-mentioned reason, signal amplification module described in specific embodiment of the present invention needs
It is provided simultaneously with filtering and enlarging function, the signal amplification module includes filter unit and amplifying unit, and the filtering is single
Member is low-pass filter, and the heart rate sensor output end is connected with filter unit input terminal, the filter unit output end and
Amplifying unit input terminal is connected, and the amplifying unit output end is connected with comparison module input terminal.
It is further used as preferred embodiment, in specific embodiment of the present invention, the filter unit includes electricity
Hold C1, capacitor C2, resistance R1, resistance R2, resistance R3, resistance R4 and transport and placing device A1, the resistance R1 and resistance R2 are connected on
Between inductance coil and transport and placing device A1 non-inverting input terminal, the resistance R3 and resistance R4 are connected on transport and placing device A1 output end and ground connection
Between end, the transport and placing device A1 anti-phase input terminates the tie point in resistance R3 and resistance R4, and the transport and placing device A1 output end is logical
Cross capacitor C1 and connect tie point in resistance R1 and resistance R2, the both ends the capacitor C2 respectively with transport and placing device A1 non-inverting input terminal with connect
Ground terminal is connected, and the transport and placing device A1 output end is connected with amplifying unit input terminal.Specifically, filter unit described in the present embodiment
It is a second order active low-pass filter, filter effect is good.
It is further used as preferred embodiment, in specific embodiment of the present invention, the amplifying unit includes type
Number amplifier chip for being MAX9812, the filter unit output end is connected with amplifier chip input terminal, the amplifier core
Piece output end is connected with comparison module.The telecommunications that the present embodiment exports filter unit using the amplifier chip of high integration
Number operation is amplified, greatly reduces the complexity of circuit structure.
It is further used as preferred embodiment, in specific embodiment of the present invention, the counting module includes single
Piece machine core piece, the singlechip chip input terminal are connected with comparison module output end, the singlechip chip output end and display
Module input is connected.Specifically, when singlechip chip receives the specific level signal that comparison module is exported, starting
Timer inside singlechip chip stops runs, together when singlechip chip receives the level signal again
When the number of heartbeat in one minute, i.e. heart rate value are calculated according to the time interval of two level signals.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (6)
1. a kind of stethoscope with heart rate detecting function, including stethoscope ontology, the stethoscope ontology includes auscultation head, leading note
Pipe, three-pronged connector and earpiece, the auscultation head are connected with earpiece by three-pronged connector by sound guide tube, are equipped in the auscultation head
Resonance plate, it is characterised in that: further include heart rate sensor, signal amplification module, base modules, comparison module, counting module with
And display module, the heart rate sensor output end are connected with signal amplification module input terminal, the signal amplification module output
End and base modules output end are connected with comparison module input terminal respectively, and the comparison module output end and counting module input
End is connected, and the counting module output end is connected with display module input terminal, and the heart rate sensor is mounted on inside auscultation head
And resonance plate mechanical oscillation signal is converted into electric signal.
2. a kind of stethoscope with heart rate detecting function according to claim 1, it is characterised in that: the heart rate sensor
Permanent magnet including inductance coil and generation stationary magnetic field, the inductance coil are arranged on resonance plate, the permanent magnet peace
Inside auscultation head, the inductance coil is connected with signal amplification module input terminal.
3. a kind of stethoscope with heart rate detecting function according to claim 2, it is characterised in that: the signal amplifies mould
Block includes filter unit and amplifying unit, and the filter unit is low-pass filter, the heart rate sensor output end and filter
Wave unit input terminal be connected, the filter unit output end is connected with amplifying unit input terminal, the amplifying unit output end and
Comparison module input terminal is connected.
4. a kind of stethoscope with heart rate detecting function according to claim 3, it is characterised in that: the filter unit packet
Include capacitor C1, capacitor C2, resistance R1, resistance R2, resistance R3, resistance R4 and transport and placing device A1, the resistance R1 and resistance R2 string
Be associated between inductance coil and transport and placing device A1 non-inverting input terminal, the resistance R3 and resistance R4 be connected on transport and placing device A1 output end with
Between ground terminal, tie point of the transport and placing device A1 anti-phase input termination in resistance R3 and resistance R4, the transport and placing device A1 output
End connects the tie point in resistance R1 and resistance R2 by capacitor C1, the both ends the capacitor C2 respectively with transport and placing device A1 non-inverting input terminal
It is connected with ground terminal, the transport and placing device A1 output end is connected with amplifying unit input terminal.
5. a kind of stethoscope with heart rate detecting function according to claim 4, it is characterised in that: the amplifying unit packet
The amplifier chip of model MAX9812 is included, the filter unit output end is connected with amplifier chip input terminal, the amplification
Device chip output is connected with comparison module.
6. a kind of stethoscope with heart rate detecting function according to claim 1, it is characterised in that: the counting module packet
Include singlechip chip, the singlechip chip input terminal is connected with comparison module output end, the singlechip chip output end with
Display module input terminal is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721445088.3U CN208769808U (en) | 2017-11-01 | 2017-11-01 | A kind of stethoscope with heart rate detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721445088.3U CN208769808U (en) | 2017-11-01 | 2017-11-01 | A kind of stethoscope with heart rate detecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208769808U true CN208769808U (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721445088.3U Expired - Fee Related CN208769808U (en) | 2017-11-01 | 2017-11-01 | A kind of stethoscope with heart rate detecting function |
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| CN (1) | CN208769808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773268A (en) * | 2017-11-01 | 2018-03-09 | 佛山科学技术学院 | A kind of stethoscope with heart rate detecting function |
-
2017
- 2017-11-01 CN CN201721445088.3U patent/CN208769808U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773268A (en) * | 2017-11-01 | 2018-03-09 | 佛山科学技术学院 | A kind of stethoscope with heart rate detecting function |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20201101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |