CN107773268A - A kind of stethoscope with heart rate detecting function - Google Patents
A kind of stethoscope with heart rate detecting function Download PDFInfo
- Publication number
- CN107773268A CN107773268A CN201711057388.9A CN201711057388A CN107773268A CN 107773268 A CN107773268 A CN 107773268A CN 201711057388 A CN201711057388 A CN 201711057388A CN 107773268 A CN107773268 A CN 107773268A
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- heart rate
- output end
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- input
- resistance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02444—Details of sensor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Signal Processing (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Psychiatry (AREA)
- Acoustics & Sound (AREA)
- Power Engineering (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a kind of stethoscope with heart rate detecting function, including stethoscope body, stethoscope body includes auscultation head, sound guide tube, three-pronged connector and receiver, resonance plate is provided with auscultation head, the invention also 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, signal amplification module output end and base modules output end are connected with comparison module input respectively, comparison module output end is connected with counting module input, counting module output end is connected with display module input.Heart of patient jitter is converted into electric signal by the invention by heart rate sensor, effective heartbeat every time is judged by comparison module, the heart rate value of patient is calculated according to the output signal of comparison module using counting module, improves the degree of accuracy of heart rate detection.The invention is used for the heart rate value for detecting patient.
Description
Technical field
The present invention relates to technical field of medical instruments, more specifically to a kind of stethoscope structure.
Background technology
When hospital outpatient register and seen a doctor, doctor is required for carrying out auscultation to 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 traditional stethoscope to the heart rate situation of patient, mainly pass through artificial subjective calculating
Patient heart rate situation, doctor needs 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 judge by subjective calculate of doctor, causes the heart rate detection of patient to lack objective judgment standard, sentence so as to increase mistake
Disconnected probability.
The content of the invention
The technical problem to be solved in the present invention is：A kind of stethoscope for being capable of intelligent display patient heart rate situation is provided.
The present invention solve its technical problem solution be：
A kind of stethoscope with heart rate detecting function, including stethoscope body, the stethoscope body include auscultation head, led
Sound tube, three-pronged connector and receiver, the auscultation head are connected with receiver by three-pronged connector by sound guide tube, set in the auscultation head
Have a resonance plate, the invention also include heart rate sensor, signal amplification module, base modules, comparison module, counting module with
And display module；Wherein described signal amplification module is used to input signal being filtered and amplifieroperation, 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, that is, calculate heart rate value, it is described
Display module display calculates the heart rate value of gained, and the display module may be mounted on three-pronged connector, can also be arranged on it
His position, pass through wireless communication module, such as bluetooth module communicates to connect with counting module；The heart rate sensor output end with
Signal amplification module input is connected, the signal amplification module output end and base modules output end respectively with comparison module
Input is connected, and the comparison module output end is connected with counting module input, the counting module output end and display mould
Block input is connected, and the heart rate sensor is arranged on inside auscultation head and resonance plate mechanical oscillation signal is converted into telecommunications
Number.
As the further improvement of above-mentioned technical proposal, the heart rate sensor includes inductance coil and produces constant magnetic
The permanent magnet of field, the inductance coil are arranged on resonance plate, and the permanent magnet is arranged on inside auscultation head, the inductance coil
It is connected with signal amplification module input.
As the further improvement of above-mentioned technical proposal, the signal amplification module includes filter unit and amplification is single
Member, the filter unit are low pass filter, and the heart rate sensor output end is connected with filter unit input, the filtering
Unit output end is connected with amplifying unit input, and the amplifying unit output end is connected with comparison module input.
As the further improvement of above-mentioned technical proposal, the filter unit includes electric capacity C1, electric capacity 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 phases of transport and placing device A1
Between input, the resistance R3 and resistance R4 are connected between transport and placing device A1 output ends and earth terminal, and the transport and placing device A1 is anti-
Mutually input terminates at resistance R3 and resistance R4 tie point, and the transport and placing device A1 output ends are connected on resistance R1 and electricity by electric capacity C1
R2 tie point is hindered, the electric capacity C2 both ends are connected with transport and placing device A1 in-phase input ends with earth terminal respectively, the transport and placing device A1
Output end is connected with amplifying unit input.
As the further improvement of above-mentioned technical proposal, the amplifying unit includes model MAX9812 amplifier core
Piece, the filter unit output end are connected with amplifier chip input, the amplifier chip output end and comparison module phase
Even.
As the further improvement of above-mentioned technical proposal, the counting module includes singlechip chip, the monolithic movement
Piece input is connected with comparison module output end, and the singlechip chip output end is connected with display module input.
The beneficial effects of the invention are as follows：Heart of patient jitter is converted into electricity by the invention by heart rate sensor
Signal, effective heartbeat every time, the output signal meter using counting module according to comparison module are judged by comparison module
The heart rate value of patient is calculated, and result is output in display module, facilitates doctor to observe, avoids and passes through during traditional treatment
Doctor's subjective consciousness judges the heart rate value of patient, improves the degree of accuracy of heart rate detection.The invention is used for the heart for detecting patient
Rate value.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described.Obviously, described accompanying drawing is the part of the embodiment of the present invention, rather than is all implemented
Example, those skilled in the art on the premise of not paying creative work, can also obtain other designs according to these accompanying drawings
Scheme and accompanying drawing.
Fig. 1 is the stethoscope structure schematic diagram of the invention；
Fig. 2 is the circuit module block diagram of the invention；
Fig. 3 is the signal amplification module embodiment schematic diagram of the invention.
Embodiment
Carried out below with reference to the design of embodiment and accompanying drawing to the present invention, concrete structure and caused technique effect clear
Chu, complete description, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright part of the embodiment, rather than whole embodiments, based on embodiments of the invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All annexations, not single finger element directly connect, and refer to can be according to specific implementation situation, by adding or reducing connection
Element, to form more excellent circuit structure.Each technical characteristic in the invention, on the premise of not conflicting conflict
Can be with combination of interactions.
1~Fig. 3 of reference picture, the invention provide a kind of stethoscope with heart rate detecting function, including stethoscope sheet
Body, the stethoscope body include auscultation head 1, sound guide tube 2, three-pronged connector 3 and receiver 4, and the auscultation head 1 is by sound guide tube 2
Connected by three-pronged connector 3 with receiver 4, be provided with resonance plate in the auscultation head 1, the invention also including heart rate sensor,
Signal amplification module, base modules, comparison module, counting module and display module；Wherein described signal amplification module is used for
Input signal is filtered and amplifieroperation, the base modules are used to provide reference voltage signal, the comparison module is used
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, that is, calculates heart rate value, the display module display calculates the heart rate value of gained, described aobvious
Show that module may be mounted on three-pronged connector 3, other positions can also be arranged on, pass through wireless communication module, such as bluetooth mould
Block communicates to connect with counting module；The heart rate sensor output end is connected with signal amplification module input, and the signal is put
Big module output end and base modules output end are connected with comparison module input 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, and the heart rate sensor is arranged on
Resonance plate mechanical oscillation signal is simultaneously converted into electric signal by the inside of auscultation head 1.
The invention operation principle is as follows, believes acoustical vibration caused by heartbeat first with heart rate sensor
Number be converted into electric signal, the electric signal is input into signal amplification module is filtered and amplifieroperation, human heart it is each
Bounce, when being converted into voltage signal, each cycle of beating can have a highest voltage magnitude, when signal amplification module is every
When output is once more than the amplitude voltage of base modules output voltage, comparison module will export a specific level signal, should
The specific visual physical circuit connected mode of level signal and determine, counting module is used for the spy for calculating two comparison modules output
Determine the time difference between level, i.e., the time interval of each heartbeat, jumped so as to calculate heart within one minute indirectly
The heart rate value of dynamic number, i.e. patient.
Heart of patient jitter is converted into electric signal by the invention by heart rate sensor, is sentenced by comparison module
Disconnected effective heartbeat every time, the heart rate value of patient is calculated according to the output signal of comparison module using counting module, and will
As a result it is output in display module, facilitates doctor to observe, avoids and disease is judged by doctor's subjective consciousness during traditional treatment
The heart rate value of people, improve the degree of accuracy of heart rate detection.
Preferred embodiment is further used as, the heart rate sensor is used for the ticktack message for gathering heart of patient
Number, and convert thereof into electric signal.It is described in the invention embodiment to realize the heart rate sensor function
Heart rate sensor includes inductance coil and produces the permanent magnet of stationary magnetic field, and the inductance coil is arranged on resonance plate, institute
Permanent magnet is stated inside auscultation head 1, the inductance coil is connected with signal amplification module input.Human heart it is each
Bounce, sound can be all produced, sound, which is entered in auscultation head 1, makes the resonance plate of inside produce vibration, so as to drive inductance coil
The motion of cutting magnetic induction line is done in magnetic field, produces corresponding electric signal.
Preferred embodiment is further used as, is deposited in the electric signal that heart rate sensor described in the invention is exported
In certain high frequency spurs signal, easily the judged result of comparison module is impacted, while heart rate sensor is exported
Electric signal is weaker, and amplitude is relatively low, and with reference to above-mentioned reason, signal amplification module described in the invention embodiment needs
Filtering and enlarging function are provided simultaneously with, 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, the filter unit output end with
Amplifying unit input is connected, and the amplifying unit output end is connected with comparison module input.
It is further used as preferred embodiment, in the invention embodiment, the filter unit includes electricity
Hold C1, electric capacity 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 in-phase input ends, the resistance R3 and resistance R4 are connected on transport and placing device A1 output ends and ground connection
Between end, the transport and placing device A1 anti-phase inputs terminate at resistance R3 and resistance R4 tie point, and the transport and placing device A1 output ends are led to
The tie point that electric capacity C1 is connected on resistance R1 and resistance R2 is crossed, the electric capacity C2 both ends are respectively with transport and placing device A1 in-phase input ends with connecing
Ground terminal is connected, and the transport and placing device A1 output ends are connected with amplifying unit input.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 the invention embodiment, the amplifying unit includes type
Number amplifier chip for being MAX9812, the filter unit output end is connected with amplifier chip input, the amplifier core
Piece output end is connected with comparison module.The telecommunications that the present embodiment is exported using the amplifier chip of high integration to filter unit
Number operation is amplified, greatly reduces the complexity of circuit structure.
It is further used as preferred embodiment, in the invention embodiment, the counting module includes single
Piece movement piece, the singlechip chip input 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, start
Timer inside singlechip chip, when singlechip chip receives the level signal again, stop runs, together
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 present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent modifications on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of stethoscope with heart rate detecting function, including stethoscope body, the stethoscope body includes auscultation head, leading note
Pipe, three-pronged connector and receiver, the auscultation head are connected with receiver by three-pronged connector by sound guide tube, are provided with the auscultation head
Resonance plate, it is characterised in that：Also 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, the signal amplification module output
End and base modules output end are connected with comparison module input respectively, and the comparison module output end inputs with counting module
End is connected, and the counting module output end is connected with display module input, and the heart rate sensor is arranged on inside auscultation head
And resonance plate mechanical oscillation signal is converted into electric signal.
A kind of 2. 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.
A kind of 3. 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
Ripple unit input is connected, and the filter unit output end is connected with amplifying unit input, the amplifying unit output end with
Comparison module input is connected.
A kind of 4. stethoscope with heart rate detecting function according to claim 3, it is characterised in that：The filter unit bag
Include electric capacity C1, electric capacity C2, resistance R1, resistance R2, resistance R3, resistance R4 and transport and placing device A1, resistance R1 and resistance the R2 string
Be associated between inductance coil and transport and placing device A1 in-phase input ends, the resistance R3 and resistance R4 be connected on transport and placing device A1 output ends with
Between earth terminal, the transport and placing device A1 anti-phase inputs terminate at resistance R3 and resistance R4 tie point, the transport and placing device A1 outputs
End is connected on resistance R1 and resistance R2 tie point by electric capacity C1, the electric capacity C2 both ends respectively with transport and placing device A1 in-phase input ends
It is connected with earth terminal, the transport and placing device A1 output ends are connected with amplifying unit input.
A kind of 5. stethoscope with heart rate detecting function according to claim 4, it is characterised in that：The amplifying unit bag
Model MAX9812 amplifier chip is included, the filter unit output end is connected with amplifier chip input, the amplification
Device chip output is connected with comparison module.
A kind of 6. stethoscope with heart rate detecting function according to claim 1, it is characterised in that：The counting module bag
Include singlechip chip, the singlechip chip input is connected with comparison module output end, the singlechip chip output end with
Display module input is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057388.9A CN107773268A (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 |
|---|---|---|---|
| CN201711057388.9A CN107773268A (en) | 2017-11-01 | 2017-11-01 | A kind of stethoscope with heart rate detecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107773268A true CN107773268A (en) | 2018-03-09 |
Family
ID=61432409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711057388.9A Pending CN107773268A (en) | 2017-11-01 | 2017-11-01 | A kind of stethoscope with heart rate detecting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107773268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112587116A (en) * | 2020-12-25 | 2021-04-02 | 苏州益舒缘科技有限公司 | Heart rate detection device and detection method suitable for ear position |
| CN112587115A (en) * | 2020-12-25 | 2021-04-02 | 苏州益舒缘科技有限公司 | Auscultation device suitable for heart and auscultation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135134A2 (en) * | 1983-08-11 | 1985-03-27 | Vitacomm Ltd | Esophageal stethoscope and vital signs monitor system |
| CN102113894A (en) * | 2009-12-30 | 2011-07-06 | 湖南名鼎医疗器械有限公司 | Electronic timing and counting stethoscope |
| CN203388879U (en) * | 2013-07-03 | 2014-01-15 | 张玉凤 | Stethoscope with heart rate counting function |
| CN204813942U (en) * | 2015-03-27 | 2015-12-02 | 安静 | Portable stethoscope |
| CN105748080A (en) * | 2014-12-19 | 2016-07-13 | 西安发威电子科技有限公司 | Mobile phone peripheral device for measurement of heart rate and blood oxygen saturation |
| CN208769808U (en) * | 2017-11-01 | 2019-04-23 | 佛山科学技术学院 | A kind of stethoscope with heart rate detecting function |
-
2017
- 2017-11-01 CN CN201711057388.9A patent/CN107773268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135134A2 (en) * | 1983-08-11 | 1985-03-27 | Vitacomm Ltd | Esophageal stethoscope and vital signs monitor system |
| CN102113894A (en) * | 2009-12-30 | 2011-07-06 | 湖南名鼎医疗器械有限公司 | Electronic timing and counting stethoscope |
| CN203388879U (en) * | 2013-07-03 | 2014-01-15 | 张玉凤 | Stethoscope with heart rate counting function |
| CN105748080A (en) * | 2014-12-19 | 2016-07-13 | 西安发威电子科技有限公司 | Mobile phone peripheral device for measurement of heart rate and blood oxygen saturation |
| CN204813942U (en) * | 2015-03-27 | 2015-12-02 | 安静 | Portable stethoscope |
| CN208769808U (en) * | 2017-11-01 | 2019-04-23 | 佛山科学技术学院 | A kind of stethoscope with heart rate detecting function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112587116A (en) * | 2020-12-25 | 2021-04-02 | 苏州益舒缘科技有限公司 | Heart rate detection device and detection method suitable for ear position |
| CN112587115A (en) * | 2020-12-25 | 2021-04-02 | 苏州益舒缘科技有限公司 | Auscultation device suitable for heart and auscultation method thereof |
| WO2022134370A1 (en) * | 2020-12-25 | 2022-06-30 | 苏州益舒缘科技有限公司 | Heart rate measurement device suitable for ear position and measurement method therefor |
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Application publication date: 20180309 |
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