CN201253217Y - Korotkoff's sounds warning device - Google Patents
Korotkoff's sounds warning device Download PDFInfo
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- CN201253217Y CN201253217Y CNU2008201534222U CN200820153422U CN201253217Y CN 201253217 Y CN201253217 Y CN 201253217Y CN U2008201534222 U CNU2008201534222 U CN U2008201534222U CN 200820153422 U CN200820153422 U CN 200820153422U CN 201253217 Y CN201253217 Y CN 201253217Y
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Abstract
The utility model discloses a Korotkoff sound alarm system which comprises a filtration and amplifier module, a voltage stabilizer module, a DC power supply module, a microcontroller, an under-voltage detection module and an end surface display module, wherein the microcontroller receives a Korotoff sound simulation signal and converts the Korotoff sound simulation signal into a digital signal, and the Korotoff sound simulation signal is processed; the power supply battery voltage reference of the under-voltage detection module is received and converted into a digital signal, and the signal is processed; the power supply information of the DC power supply module is monitored, and the information is outputto the end surface display module, thus, the digitalization of the electronic line of the alarm system is realized, the interference of the operation and the surrounding environment on the system is effectively inhibited and removed, the accuracy and the reliability of a detection signal are guaranteed, the system performance is stable, the operational limitation is little, the large-scale production is convenient and the popularization and utilization value is important so as to realize the purpose of the utility model.
Description
Technical field
This utility model relates to a kind of medical treatment device, particularly a kind of Ke Shi sound alarming device.
Background technology
Over more than 100 year, world medical circle all is to survey the Ke Shi sound by people's ear by stethoscope, disposes a suitable gas gauge again in order to metering with show added gas external pressure.The method that this stethoscope+gas gauge is measured blood pressure promptly is called auscultation.The advantage of the method is to measure simply, but shortcoming is also arranged, and different exactly people may measure different results, sometimes difference is bigger, and main cause is: (1) doctor will constantly observe the variation of mercury gauge when audition, because people's the sample of having various reactions, when reading pressure value, certain gap is arranged; (2) audition of different people, resolving power are different, and distinctive tone distinguished that (being on the time) is variant; (3) Fang Qi speed has a direct impact reading, and international standard venting speed is per second 3～5mmHg, but the doctor who has often exits comparatively fast the accuracy that influence is measured; (4) owing to listen pulse tone not have a kind of comparative approach intuitively, a lot of aspects are relevant with subjective factors such as doctor's professional standards, the attention that is skilled in technique, working attitude etc.
Along with society and constant development of economy, hypertension becomes the commonly encountered diseases that threatens human health and life, presses for easy, reliable blood pressure measurement utensil, to promote testing oneself, surveying mutually of blood pressure, improve blood pressure and know rate, auscultation obviously is not suitable for this of a mass character applying.
Therefore the blood pressure measurement electronization is developed easy, reliable blood pressure measurement utensil, is the research direction of scientific and technological circle and industrial circle in recent decades, in the research of blood pressure measurement electronization, two different directions occur:
The one, oscillographic method, the cardinal principle of oscillographic method is: in the blood pressure measurement process, the wave of oscillation can occur in the air bag of colligation arm band, can think that its amplitude is corresponding to the human blood-pressure meansigma methods; Record the balance external pressure of this amplitude correspondence, seek a kind of conversion method again, just can calculate systolic pressure and diastolic pressure.2002, the international recommendation of the issue R16-2 of OIML (QIML) " noinvasive automatic sphygmomanometer ", clear and definite oscillographic method is the method for a kind of " calculation " blood pressure, the maximum mean error that suggestion requires its control survey blood pressure for ± 0.7kPa (± 5mmHg), maximum experimental standard deviation is 1.1kPa (8mmHg), and such range of error obviously is that medical measurement is unacceptable.
The 2nd, confirm the method for Ke Shi sound method as noinvasive IBPMS amount and measurement, the blood pressure measurement electronization is exactly a Ke Shi sound method electronization, its cardinal principle is: survey the Ke Shi sound with electron detector, be converted to piping of buzzer, read to remember systolic pressure from the gas gauge of adapted when occurring piping for first, read to remember diastolic pressure during last.What at present existing this class helped that the Ke Shi sound alarming device of reading formula sphygomanometer product adopts is analog circuit, and there is following defective in this analog circuit:
1, in the blood pressure measurement process of reality, venting decompression operation and surrounding all can form machine and disturb, and these disturb the intensity that surpasses the Ke Shi sound through regular meeting.When this interference surpasses Ke Shi loudness of a sound degree peak value, can be write down by peak-holding circuit and keep equally, this has just formed ghost peak, influences the reliability and the accuracy of blood pressure measurement prompting.
2, interference not only can cause above-mentioned possible ghost peak to keep, and it can trigger buzzer call equally, disturbs rhythm and pace of moving things sound with the form of noise, and influence helps measuring blood pressure.Therefore, suppressing effectively and reject interference, be to guarantee must needing of the product suitability, and analog circuit is difficult to realize interferential effective inhibition and rejecting.
3, owing to above reason, analog circuit has to introduce a kind of relaxation time of measuring preparation, promptly requires the user must keep quite the several seconds after pressurization finishes, and enters decompression again and listens the sound interpretation; Listen sound interpretation process also to require the pneumostatic that holds one's breath and keep quiet, avoid interference.These all to using operation to propose harsh requirement, are unfavorable for applying.
The utility model content
Technical problem to be solved in the utility model is, a kind of Ke Shi sound alarming device is provided, and realizes the digitized of Ke Shi sound alarming device electronic circuit.
In order to address the above problem the technical solution of the utility model is such:
A kind of Ke Shi sound alarming device, it comprises: pick off, filtering and amplifier module, voltage regulator module, direct current supply module, microcontroller, under-voltage detecting module and end face display module;
Described filtering and amplifier module receive from the Ke Shi sound initialize signal of pick off and convert suitable Ke Shi sound analogue signal to, and described filtering and amplifier module outfan are connected in the input port of described microcontroller;
Described voltage regulator module provides the 3.3V voltage stabilizing and provides A/D reference voltage for described microcontroller for described filtering and amplifier module;
Described direct current supply module provides 6V DC voltage for described voltage regulator module and described microcontroller;
Described microcontroller receives described Ke Shi sound analogue signal and is converted to digital signal and carries out signal processing, and result is exported to described end face display module; Receive the supplying cell voltage parameter of described under-voltage detecting module and be converted to digital signal and carry out signal processing, result is exported to the end face display module; The power supply information of described direct current supply module is exported to the end face display module;
Described filtering and amplifier module input connect described pick off, described filtering and amplifier module outfan connect the input of described microcontroller, and described electric power system outfan connects the input of the input of described filtering and amplifier module, described microcontroller and the input of under-voltage detecting module respectively;
Described under-voltage detecting module is surveyed described direct current supply module and is transferred to described microcontroller with bleeder circuit.
Described end face display module comprises buzzer, work indicating module and under-voltage indicating module;
Described buzzer receives the output signal of described microcontroller, sends the prompting that pipes;
Described work indicating module receives the output signal of described microcontroller, sends the on-off prompting of circuit;
Described under-voltage module receives the output signal of described microcontroller, sends the foot of 6V direct current supply voltage or owes prompting.
Described under-voltage detecting module comprises a placed in-line divider resistance and another divider resistance, described divider resistance one end links to each other with described 6V direct current supply module outfan, the described divider resistance other end links to each other with an end of another divider resistance and a port of described microcontroller respectively, the other end ground connection of described another divider resistance.
Described microcontroller is a 78P458CPU electronic device.
The beneficial effects of the utility model are, compared with prior art, Ke Shi sound alarming device of the present utility model, by introducing a microcontroller Ke Shi sound analogue signal module by signal that receives is carried out digitized processing and caution, the interference that effective inhibition and rejecting operation and surrounding cause system, accuracy and reliability have been guaranteed to each tested individual Ke Shi sound record, simultaneously, use digitized systematic function stable, performance constraint is few, be convenient to extensive manufacturing, have important popularizing value, thereby can realize the purpose of this utility model.
Description of drawings
Describe this utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the electronic-circuit diagram that each functional module of this utility model connects.
The specific embodiment
For technological means, creation characteristic that this utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth this utility model.
Referring to Fig. 1 and Fig. 2, this utility model is a kind of Ke Shi sound alarming device, it comprises: filtering and amplifier module 1,3.3V voltage regulator module 2,6V direct current supply module 3, microcontroller 5, sensor assembly 7, under-voltage detecting module 4 and end face display module 6, the connection and the function of each module are as follows:
The Ke Shi sound initialize signal that described filtering and amplifier module 1 receive from sensor assembly 7, effect through described filtering and amplifier module 1, unnecessary interfering signal is filtered out and amplify, be transformed into suitable Ke Shi sound analogue signal, and then give microcontroller 5 with this Ke Shi sound analog signal transmission, described filtering and amplifier module 1 outfan are connected in the input port of described microcontroller 5;
Described 3.3V voltage regulator module 2 provides 3.3V voltage stabilizing and described microcontroller 5 that A/D is provided reference voltage for described filtering and amplifier module 1;
Described 6V direct current supply module 3 provides 6V DC voltage for described 3.3V voltage regulator module 2 and described microcontroller 5;
Described under-voltage detecting module 4 is surveyed described 6V direct current supply module 3 and is transferred to described microcontroller 5 with bleeder circuit, in the present embodiment, described under-voltage detecting module 4 comprises a placed in-line divider resistance R15 and another divider resistance R14, described divider resistance R14 one end links to each other with described 6V direct current supply module 3 outfans, the described divider resistance R14 other end links to each other the other end ground connection of described another divider resistance R15 with the end of another divider resistance R14 and a port of described microcontroller 5 respectively.When described 6V direct current supply module 3 power supplies were not enough or competent, described under-voltage detecting module 4 can be monitored the electric power thus supplied of 3 pairs of systems of described 6V direct current supply module, in time handles to described microcontroller 5 information transmission.
Wherein, described end face display module 6 comprises buzzer 60, work indicating module 61 and under-voltage indicating module 62;
Described buzzer 60 receives the output signal of described microcontroller, sends to pipe, and prompting is measured and judged;
Described work indicating module 61 receives the output signal of described microcontroller 5, in the present embodiment by the battery powered switching state of the condition prompting of lighting and extinguishing of light emitting diode D2;
Described under-voltage module 4 receives the output signal of described microcontroller 5, and the state of lighting and extinguishing by light emitting diode D3 sends the foot of 6V direct current supply voltage or owes prompting in the present embodiment.
In the present embodiment, the model of described microcontroller 5 is the 78P458 chip, and this is the nucleus module of electronic circuit in the present embodiment, and it bears following function:
(1) will do the A/D conversion from the Ke Shi sound analogue signal of described filtering and amplifier module 1, and be transformed into digital signal, the control buzzer sends the prompting that pipes.Owing to adopt described microcontroller 5, present embodiment can replace being made up by peak-holding circuit and comparator the diastolic pressure cut-off method electronics decision technology of the functional module realization that constitutes with program in former simulation circuit, in this described microcontroller, realize by a cover digitized program, introduce amplitude limit, anti-interference and smoothing processing in the program, guaranteed the verity and the reliability of the Ke Shi loudness of a sound degree peak value that individuation is gathered;
(2) will change digital signal into from the supplying cell voltage parameter of under-voltage detecting module, control under-voltage indication, send 6V direct current supply voltage sufficient, owe the prompting;
(3) control work indication, the switching prompting of sending circuit.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that describes in the foregoing description and the description just illustrates principle of the present utility model; this utility model also has various changes and modifications under the prerequisite that does not break away from this utility model spirit and scope, and these changes and improvements all fall in claimed this utility model scope.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (5)
1, a kind of Ke Shi sound alarming device, it is characterized in that, it comprises: receive the filter amplifier module from the Ke Shi sound initialize signal of pick off, the voltage regulator module that links to each other with the filter amplifier module, the electric power system of power supply is provided for Circuits System, to the microcontroller that signal is handled, receive the end face display module of microcontroller output signal, with the under-voltage detecting module of bleeder circuit detection circuit system; Described filtering and amplifier module input connect described pick off, described filtering and amplifier module outfan connect the input of described microcontroller, described electric power system outfan connects the input of the input of described filtering and amplifier module, described microcontroller and the input of under-voltage detecting module respectively, described microcontroller outfan connects described end face display module, and described under-voltage detecting module outfan connects the input of described microcontroller.
2, a kind of Ke Shi sound alarming device according to claim 1, it is characterized in that, described under-voltage detecting module comprises placed in-line divider resistance and another divider resistance, described divider resistance one end links to each other with the outfan of DC power-supply system, the other end of described divider resistance links to each other with a port of an end of another divider resistance, described microcontroller respectively, the other end ground connection of described another divider resistance.
3, a kind of Ke Shi sound alarming device according to claim 1 is characterized in that, described microcontroller is a 78P458CPU chip.
4, a kind of Ke Shi sound alarming device according to claim 1 is characterized in that the supply voltage of described electric power system is the 6V DC voltage.
5, according to a kind of Ke Shi sound alarming device according to claim 1, it is characterized in that voltage regulator module is the 3.3V manostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534222U CN201253217Y (en) | 2008-09-24 | 2008-09-24 | Korotkoff's sounds warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534222U CN201253217Y (en) | 2008-09-24 | 2008-09-24 | Korotkoff's sounds warning device |
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| Publication Number | Publication Date |
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| CN201253217Y true CN201253217Y (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201534222U Expired - Fee Related CN201253217Y (en) | 2008-09-24 | 2008-09-24 | Korotkoff's sounds warning device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085094A (en) * | 2011-01-24 | 2011-06-08 | 罗万前 | Method for determining sound intensity peak slopes of originating point and vanishing point of Korotkoff sounds |
| CN102800231A (en) * | 2011-05-24 | 2012-11-28 | 天津市天堰医教科技开发有限公司 | Korotkoff sound simulation method |
| CN105615859A (en) * | 2014-08-29 | 2016-06-01 | 周嘉璐 | Auxiliary device for blood pressure measurement, blood pressure measurement equipment and design method of blood pressure measurement equipment |
-
2008
- 2008-09-24 CN CNU2008201534222U patent/CN201253217Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085094A (en) * | 2011-01-24 | 2011-06-08 | 罗万前 | Method for determining sound intensity peak slopes of originating point and vanishing point of Korotkoff sounds |
| CN102800231A (en) * | 2011-05-24 | 2012-11-28 | 天津市天堰医教科技开发有限公司 | Korotkoff sound simulation method |
| CN105615859A (en) * | 2014-08-29 | 2016-06-01 | 周嘉璐 | Auxiliary device for blood pressure measurement, blood pressure measurement equipment and design method of blood pressure measurement equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20140924 |
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| EXPY | Termination of patent right or utility model |