CN201234977Y - Electronic sphygmomanometer - Google Patents
Electronic sphygmomanometer Download PDFInfo
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- CN201234977Y CN201234977Y CNU2008201084413U CN200820108441U CN201234977Y CN 201234977 Y CN201234977 Y CN 201234977Y CN U2008201084413 U CNU2008201084413 U CN U2008201084413U CN 200820108441 U CN200820108441 U CN 200820108441U CN 201234977 Y CN201234977 Y CN 201234977Y
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- pressure transducer
- electronic circuit
- electric sphygmomanometer
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Abstract
An electronic sphygmomanometer with automatic error detection in the pressure measurement is provided, which is characterized by comprising at least two paths of pressure sensors which are respectively connected with a microprocessor through each electronic circuit thereof, wherein the first path of the pressure sensor and the electronic circuit thereof are the measurement portion with normally-open state, and the second path of pressure sensor and the electronic circuit thereof are the measurement portion with the normally-close state, and the two paths of the pressure sensors can connect with an inflatable component, and the inflatable component is respectively connected with a pressurizing component and a decompression component. The pressure of the inflatable component is measured by the measurement portion with the normally-close state in the periodic automatic opening way together with the measurement portion with the normally-open state, then which is calculated by the microprocessor, and calibration prompts or warnings can be given out when the difference of two measured values of pressure is larger than the error permissible value.
Description
Technical field
This utility model relates to pressure measurement technology, particularly a kind of electric sphygmomanometer.
Background technology
Electric sphygmomanometer generally comprises as lower member: pressure-producing part and decompression member, the inflatable part that is connected with decompression member with this pressure-producing part, the pressure transducer that is connected with this inflatable part, the electronic circuit that is connected with this pressure transducer, and microprocessor, the display that is connected with this microprocessor, and the software program of the measurement blood pressure in the microprocessor.
The method of using electric sphygmomanometer to measure tested person's blood pressure is: pressure-producing part carries out fast aeration to inflatable part, when the pressure in the inflatable part reaches goal pressure (goal pressure generally exceeds 20-40mmHg than tested person's systolic pressure or title high pressure), decompression member is exitted slowly to inflatable part and decompression gradually.Blood pressure measurement generally carries out at decompression phase, and common method has the oscillographic method of automatic measurement and the Ke Shi sound method of measuring by the operator.
Pressure transducer in the electric sphygmomanometer and electronic circuit thereof need calibration in process of production, make its pressure measurement errors be no more than country or international standard requirement.
Because increasing of access times, the passing of time, the influence of environment, factors such as the aging and inherent rate of breakdown of electronic component, pressure transducer in the electric sphygmomanometer and electronic circuit thereof can in use lose calibration, make its pressure measurement errors not reach standard-required.If not by the detection of professional standard instrument, the very difficult measurement error scope of determining existence, the very difficult accuracy of judging sphygomanometer measurement result, thus influence is to the judgement of measured's state of an illness.But regular calibration is made troubles to user or is increased use cost.
The utility model content
At defective that exists in the prior art or deficiency, the pressure measurement errors of the invention people detected electrons sphygomanometer to how is automatically studied, innovation and creation a kind of electric sphygmomanometer, the invention people through the retrieval, do not find the electric sphygmomanometer that this utility model provides as yet.
Technical conceive of the present utility model: provide to have the electric sphygmomanometer that automatic error detects in a kind of pressure measxurement, described automatic error detects, and matches by electronic hardware and software program and realizes.Electronic hardware is included in often opening the pressure measxurement part and often closing the pressure measxurement part under the microprocessor control.Often opening pressure measxurement partly is normally used pressure transducer and electronic circuit thereof in the pressure measxurement, and they are normally being opened or duty in pressure measxurement; It is normal that to close pressure measxurement partly be to be in usually to close or the pressure transducer and the electronic circuit thereof of off position in pressure measxurement, but when often opening pressure measxurement when partly satisfying certain Measuring Time or measuring number of times, the normal pressure measxurement part of closing starts a pressure measxurement automatically under microprocessor control, to carry out error-detecting automatically to often opening the pressure measxurement part.Software program comprises often opening adding up and record of pressure measxurement part service time or number of times, on-off control to normal pass pressure measxurement hardware, use often to open and measure identical input pressure simultaneously and calculate the poor of two institute's measuring pressures with the normal pressure measxurement two parts that close, judge whether often open or often close the pressure measxurement part loses calibration and show the automatic error testing result.
Described normal pass pressure measxurement part and automatic error detect and can weekly or start once in every month, perhaps often open the every use of pressure measxurement part five times, and ten times, 20 times, or 50 times, often close pressure measxurement part and automatic error detection startup once.By reducing the frequency of utilization or the time of normal pass pressure measxurement part, can reduce often to close the fault rate of pressure measxurement part, thereby improve often opening the effectiveness of pressure measxurement part automatic error testing result.
Automatic error detection method in the pressure measxurement that this utility model provides is suitable for various types of electric sphygmomanometers, comprises the electric sphygmomanometer manual or that pressurize automatically of measuring blood pressure by Ke's formula sound method or oscillographic method.
The electric sphygmomanometer that this utility model provides comprises: pressure-producing part and decompression member, the inflatable part that is connected with decompression member with this pressure-producing part, what be connected with this inflatable part often opens pressure transducer and electronic circuit thereof and often closes pressure transducer and electronic circuit thereof, and microprocessor, the display that is connected with this microprocessor, and the automatic error in the microprocessor detects software program and the required software program of blood pressure measurement.
The technical solution of the utility model is as follows:
A kind of electric sphygmomanometer, it is characterized in that comprising: the pressure transducer of two-way at least that connects microprocessor respectively by electronic circuit separately, wherein first via pressure transducer and electronic circuit thereof are the measure portion that is in normally open, and the second road pressure transducer and electronic circuit thereof are the measure portion that is in normal off status; Described two-way pressure transducer connects same inflatable part, and described inflatable part connects pressure-producing part and decompression member respectively; The described measure portion that is in normal off status is measured the air pressure in the same inflatable part with the measure portion of normally open in the mode of opening periodically automatically, and calculate by described microprocessor, when the difference of two-way pressure measuring value during, provide the calibration prompting or report to the police greater than given error permissible value.
Described providing calibrated prompting or warning, carried out by the display of microprocessor control.
The power supply of the second road pressure transducer and electronic circuit thereof is supplied with by the detection on and off switch of microprocessor control, this switch is the electronic hardware switch that is independent of microprocessor, or, the second road pressure transducer and electronic circuit thereof are used selectively by this switch by the software switch that microprocessor I/O mouth defines; The second road pressure transducer is connected with inflatable part by a switch air valve by microprocessor control, and microprocessor pressurizes to the second road pressure transducer selectively by this switch air valve.
The normality of described detection on and off switch disconnects, thus the not power supply under normal conditions of the second road pressure transducer and electronic circuit thereof; Equally, the normality of described switch air valve disconnects, thereby the input of the second road pressure transducer does not have air pressure; The described electric sphygmomanometer of the each use of operator, its pressure measxurement all is to finish by first via pressure transducer and electronic circuit thereof, and before the blood pressure measurement process finished each time, microprocessor all refreshed the access times record of electric sphygmomanometer.
Described electric sphygmomanometer all has an initialization procedure when powering on starting at every turn, and this initialization procedure comprises the access times record of checking electric sphygmomanometer; When these access times were the integral multiple of a predetermined number, microprocessor was opened the switch air valve and is detected on and off switch, starts the second road pressure transducer and electronic circuit, and first via pressure transducer and electronic circuit are done the automatic pressure error-detecting; Simultaneously the pressure in the inflatable part is measured by the two-way pressure transducer, and with the two-way pressure signal that produces input microprocessor all, microprocessor calculates both errors; If error is greater than an assigned error permissible value, display reminds the operator to note with the display mode of glint error value.
Technique effect of the present utility model is as follows:
Automatic error detection method in this utility model pressure measxurement and electric sphygmomanometer can carry out error-detecting automatically in pressure or blood pressure measurement process, fully need not the operator get involved, and save manpower and financial resources and bring great convenience for user.Employedly often open pressure measxurement part and often close the pressure measxurement part service time or frequency of utilization are different altogether, thereby improve the effectiveness of automatic error detection.
Description of drawings
Fig. 1 is the electronic hardware sketch map that detects the electric sphygmomanometer of error in the pressure measxurement automatically.
Fig. 2 is for detecting the software program flow chart of the electric sphygmomanometer of error automatically in the pressure measxurement.
Reference numeral lists as follows:
The 22-pressure-producing part; The 24-inflatable part; The 25-vent valve, 26-first via pressure transducer, 27-electromagnetic gas valve, 28-the second road pressure transducer, 30-first via difference amplifier, 32-No. the second difference amplifier,, 34-microprocessor, 36-display, the 52-initialization, 54-error log judges that 56-calibrates prompting, 57-measures the number of times record, and 58-measures number of times and judges that 60-opens the electromagnetic gas valve and the second tunnel pressure measxurement part on and off switch, the 62-data are obtained, the 63-pressure period is judged, 64-pressure display update, 65-error-detecting conditional judgment, 66-pressure fall off rate is judged, the 67-absolute difference calculates, 68-error judgment, 70-absolute difference record, the 72-blood pressure measurement, the 74-blood pressure measurement finishes to judge that the 76-blood pressure measurement shows that 78-error log is judged, 80-calibrates prompting, the 82-EP (end of program).
Specific embodiments
The technical scheme of the electric sphygmomanometer of the technical scheme of the automatic error detection method in the pressure measxurement that this utility model provides and use the method illustrates with same electric sphygmomanometer technical scheme.
An electric sphygmomanometer, comprise: pressurization and decompression member, the inflatable part that is connected with decompression member with pressurization, be connected with inflatable part, as tonometric first via pressure transducer and electronic circuit, the microprocessor that links to each other with electronic circuit with this pressure transducer, and the display of being controlled by microprocessor, with parallel with first via pressure transducer and electronic circuit, the second road pressure transducer and the electronic circuit that detect as automatic error.First via pressure transducer and electronic circuit be electric sphygmomanometer often open the pressure measxurement part, the second road pressure transducer and electronic circuit are the normal pass pressure measxurement part of electric sphygmomanometer.
The power supply of the second road pressure transducer and electronic circuit is by being supplied with by the detection on and off switch of microprocessor control, this switch can be the electronic hardware switch that is independent of microprocessor, also can directly power or cut off the power supply for the second road pressure transducer and electronic circuit by microprocessor I/O mouth " soft " switch, by this switch the second road pressure transducer and electronic circuit are used selectively.The input of the second road pressure transducer can further be connected with inflatable part by a switch air valve by microprocessor control, and microprocessor pressurizes to the second road pressure transducer selectively by this switch air valve.
Described detection on and off switch normally disconnects, thus the not power supply usually of the second road pressure transducer and electronic circuit.Equally, described switch air valve normally disconnects, thereby the input of the second road pressure transducer does not have air pressure.The described electric sphygmomanometer of the each use of operator, its pressure measxurement all is to finish by first via pressure transducer and electronic circuit thereof, and before the blood pressure measurement process finished each time, microprocessor all refreshed the access times record of electric sphygmomanometer.
Described electric sphygmomanometer all has an initialization procedure when powering on starting at every turn, and this initialization procedure comprises the access times record of checking electric sphygmomanometer.When these access times were the integral multiple of a predetermined number, microprocessor was opened the switch air valve and is detected on and off switch, starts the second road pressure transducer and electronic circuit, and first via pressure transducer and electronic circuit are done the automatic pressure error-detecting.Described predetermined number is two at least, can be five, ten, 20, or 50 etc.
When described access times are the integral multiple of a predetermined number, described electric sphygmomanometer is measured the pressure in the inflatable part simultaneously with two independent pressure transducer and electronic circuit, and with the two-way pressure signal that produces input microprocessor all, microprocessor calculates both errors, and this error is shown on display.If error is greater than an assigned error permissible value, 2% of 4mmHg or pressure reading (getting the greater in the two) for example, display can remind behaviour that the person of being notes with the display mode of glint error value.This error detection procedure can be in the process of blood pressure measurement simultaneously, carry out automatically.
In a single day find an error greater than the assigned error permissible value in error detection procedure, illustrate that just sphygomanometer might lose calibration, need to recalibrate.Microprocessor will write down the absolute value of this error amount this moment.Microprocessor only writes down an Error Absolute Value greater than the maximum of assigned error permissible value in error-detecting.If record Error Absolute Value in the microprocessor, before the beginning of next time measurement sphygomanometer, Error Absolute Value is shown so.
Because when the two independent measuring system was measured the pressure in the inflatable part simultaneously, the response time of two-way system hardware might be inconsistent; And postponing may appear in the time that pressure reaches the two-way measuring system when measuring dynamic pressure, and it is poor if having time to cause, thereby the pressure that same time two-way measuring system measures might be different.When error-detecting, just be easy to generate measurement error like this.Just can reduce measurement error so hour carry out error-detecting at the rate of change of inflatable part internal pressure.So the automatic error detection is preferably disposed on, and the slow decompression phase after the pressure period carries out in the blood pressure measurement process.
Automatic error detection method in this utility model pressure measxurement and electric sphygmomanometer can carry out error-detecting automatically in pressure or blood pressure measurement process, fully need not the operator get involved, and save manpower and financial resources and bring great convenience for user.Employedly often open pressure measxurement part and often close the pressure measxurement part service time or frequency of utilization are different altogether, thereby improve the effectiveness of automatic error detection.
As shown in Figure 1, automatically detect the electric sphygmomanometer of error in the pressure measxurement, include: pressure-producing part 22, inflatable part 24, vent valve 25, first via pressure transducer 26, the second road pressure transducer 28, first via difference amplifier 30, No. the second difference amplifier 32, microprocessor 34, display 36.Pressure-producing part 22 can be a hand air pump, also can be electric air pump.Inflatable part can be arm or wrist oversleeve.Vent valve 25 can be manual or automatic blow off valve valve air relief.First via pressure transducer 26 and first via difference amplifier 30 can be parts separately or integrated parts.Equally, the second road pressure transducer 28 and No. the second difference amplifier 32 can be parts separately or integrated parts.Display 36 can be LCD or LED numeral or figure escope.Described electric sphygmomanometer can further comprise electromagnetic gas valve 27.Electromagnetic gas valve 27 is by microprocessor 34 controls, the air valve of switch by current drives.
As shown in Figure 1, when described electric sphygmomanometer begins to measure blood pressure, pressure in the inflatable part 24 is measured by first via pressure transducer 26, after the pressure signal that first via pressure transducer 26 is produced carries out the difference amplification by first via difference amplifier 30, output to and comprise signals collecting (mould/number conversion), the microprocessor 34 of functions such as processing and control, 34 pairs of pressure signals of microprocessor write down laggard row operation and handle, and the result is shown on display 36.Described electric sphygmomanometer can be measured blood pressure automatically by oscillographic method commonly used, shows measurement result then, can only show that also pressure allows the operator pass through Ke's formula sound method and measures blood pressure.
In the use of described electric sphygmomanometer, microprocessor 36 with the second road pressure transducer 28 and 32 outages of No. the second difference amplifier, makes it not in use by the I/O mouth usually.If also used electromagnetic gas valve 27, electromagnetic gas valve 27 normally disconnects, and the air pressure of inflatable part 24 does not enter the pressure introduction port of the second road pressure transducer 28 usually.
When the use of described electric sphygmomanometer is every when crossing certain hour or number of times, microprocessor 36 is given the second road pressure transducer 28 and 32 energisings of No. the second difference amplifier by the I/O mouth, and carries out pressure measurement errors and detect.If also used electromagnetic gas valve 27, electromagnetic gas valve 27 also will be opened, and makes the air pressure of inflatable part 24 enter the pressure introduction port of the second road pressure transducer 28.As shown in Figure 1, when measuring blood pressure by first via pressure transducer 26 and first via difference amplifier 30 according to common method, the second road pressure transducer 28 will be measured the pressure in the inflatable oversleeve 24 simultaneously with first via pressure transducer 26, pressure in the inflatable oversleeve 24 produces pressure signal by the second road pressure transducer 28, amplifies the back by No. the second difference amplifier 32 and is gathered by microprocessor 34.Microprocessor 34 is also noted the force value that this moment, the second road pressure transducer 28 measured simultaneously.The force value that the force value that microprocessor 34 measures the synchronization first via pressure transducer 26 that is write down and the second road pressure transducer 28 measure compares calculating, calculates the absolute value of difference, i.e. absolute difference (or error amount).
For example, can carry out a pressure measurement errors during the every use of described electric sphygmomanometer 10 times detects.Described electric sphygmomanometer powers on when starting at every turn, and microprocessor 34 is read the access times of described electric sphygmomanometer internally in the memory, adds then and deposits back described inner memory.Each use of described like this electric sphygmomanometer all obtains record.After having write down, 34 pairs of number of times of this time measuring of microprocessor are judged, it as the number of times of this measurement 10 integral multiple, microprocessor 34 is opened the on and off switch of electromagnetic gas valve 27 and the second road pressure transducer 28 and No. the second difference amplifier 32 with control so, begins to detect automatically error when measuring blood pressure.As the number of times of this measurement is not 10 integral multiple, does not then carry out error-detecting.
In described electric sphygmomanometer decompression process, the pressure in inflatable oversleeve 24 drops to and is close to zero, and when for example 5mmHg is following, judges that then blood pressure measurement finishes.Finish the back at blood pressure measurement and record absolute difference as microprocessor 34, illustrate that then electric sphygmomanometer loses calibration, after blood pressure measurement finished to have shown measured's pressure value, microprocessor 34 control display 36 carried out losing of sphygomanometer and calibrate prompting so.Equally, before infra one-shot measurement blood pressure begins, also lose the calibration prompting.Reminding method can be to show absolute difference and to be interrupted or the mode of flicker shows, to cause operator's attention.Losing of sphygomanometer calibrated prompting also can use other devices, for example: buzzer or red LED display lamp.
In order to reduce because the measurement error that inflatable oversleeve 24 internal pressure rates of change cause too greatly causes sphygomanometer to lose the calibration false-alarm, just the measurements and calculations of the absolute difference of the force value that the force value that same time first via pressure transducer 26 measures and the second road pressure transducer 28 measure can be carried out under less pressure change rate condition.For example, if the rate of change of inflatable oversleeve 24 internal pressures surpasses a given rate of change, then measured absolute difference is invalid.Described given rate of change can be the certain value between the per second decline 5mmHg to 10mmHg.The decompression phase pressure change rate is less because the pressure period pressure change rate in the blood pressure measurement process is big, and the mensuration of described absolute difference also can be limited in decompression phase and carry out.
As shown in Figure 2, the automatic software program flow chart that detects the electric sphygmomanometer of error can comprise the steps: in the pressure measxurement
A) initialization 52: comprise the time that show value on the display 34 that is updated among Fig. 1 and record display device 34 upgrade.
These initial values are generally zero.
B) error log judges 54: judge whether record absolute difference in the microprocessor 34.If any representing that then electric sphygmomanometer loses calibration.As do not have, program is moved towards step d).
C) the calibration prompting 56: microprocessor 34 control display 36 carry out the calibration that loses of electric sphygmomanometer and point out.Reminding method can be with shown absolute difference with about per second once interruption or the mode of flicker show.The demonstration time can be 5-10 second altogether.
D) measure number of times record 57: microprocessor 34 writes down one and measures the number of times digital " 0 " when electric sphygmomanometer production is dispatched from the factory, and is adding 1 (with the measurement number of times of record electric sphygmomanometer under time blood pressure measurement) later on after each initialization of using on the former record.
E) measure number of times and judge 58: whether number of times of judging measurement this time is 10 integral multiple.As not being that then sphygomanometer does not carry out error and detects automatically,, program is moved towards step g), directly carries out blood pressure measurement by first via pressure transducer 26.
F) open the electromagnetic gas valve and the second tunnel pressure measxurement part on and off switch 60: the on and off switch that electromagnetic gas valve 25 and the second road pressure transducer 28 and No. the second difference amplifier 32 are opened in microprocessor 34 controls, carry out error-detecting to electric sphygmomanometer when measuring blood pressure.
G) data obtain 62: pressure data P1 (t) and P2 (t) in the pneumatic sleeve 24 that the first via pressure transducer 26 and the second road pressure transducer 28 obtain in Fig. 1 when being included in current time t.
H) pressure period judges 63: the size of more current pressure P 1 (t) and previous pressure P 1 (t-Δ T), Δ T was preferably 1 second between 0.5 to 1.5 second.If P1 (t) goes out a given pressure value added greatly unlike P1 (t-Δ T), judge that so pressurization finishes, program is jumped into step k); If P1 (t) goes out a given pressure value added greatly than P1 (t-Δ T), judge that the pressure in the pneumatic sleeve 24 is in the pressure period, continue step g) to i).Described given pressure value added can be between 5mmHg to 10mmHg.
I) the pressure display update 64: on the display 34 of pressure data P1 (t) update displayed that microprocessor 34 is collected in the figure one.
J) continuous repeating step g) to i) up to step h) judge that pressurized state finishes.
K) the error-detecting conditional judgment 65: judge that whether number of times of this time measuring is 10 integral multiple, if this time number of times of measuring is not 10 integral multiple, then sphygomanometer does not carry out error and detects automatically, and program is moved towards step p).
L) the pressure fall off rate judges 66: whether the decline rate of change of judging inflatable oversleeve 24 internal pressures is less than a given decline rate of change, if the decline rate of change of inflatable oversleeve 24 internal pressures is greater than a given decline rate of change, then do not measure absolute difference, program is moved towards step p).Described given decline rate of change can be the certain value between the per second 5mmHg to 10mmHg.
M) absolute difference calculates 67: the absolute value-absolute difference of the difference of the pressure value P 2 (t) that the pressure value P 1 (t) that calculating synchronization first via pressure transducer 26 measures and the second road pressure transducer 28 measure | P1 (t)-P2 (t) |.
N) error judgment 68: whether the absolute difference of judging any one group of force value is greater than an assigned error permissible value, if represent that then electric sphygmomanometer loses calibration.Described assigned error permissible value can be 2% (getting the greater in the two) of 4mmHg or pressure reading.Do not lose calibration as sphygomanometer, program is moved towards step p)
O) the absolute difference record 70: 34 pairs of absolute differences of microprocessor carry out record.If the absolute difference of a more than group number-reading is greater than described assigned error permissible value, 34 of microprocessors write down maximum absolute differences.
P) blood pressure measurement 72: use blood pressure measuring method commonly used to comprise that oscillographic method and Ke Shi sound method carry out blood pressure measurement (the blood pressure measurement program is familiar with by professional quarters, does not describe at this).
Q) the pressure display update 64: on the display 34 of pressure data P1 (t) update displayed that microprocessor 34 is collected in the figure one.
R) blood pressure measurement finishes to judge 74: the pressure in inflatable oversleeve 24 drops to below the 5mmHg, judges that then blood pressure measurement finishes.Blood pressure measurement finishes to judge that 74 also can judge that blood pressure measurement finishes according to the information that blood pressure measurement 72 provides.Do not finish as blood pressure measurement, program step constantly repeats g) to r) up to step r) judge that blood pressure measurement finishes.
S) blood pressure measurement shows 76: if blood pressure measurement 72 has the output result to need to show, then microprocessor 34 shows the result.
T) error log judges 78: judge whether record absolute difference in the microprocessor 34.As do not have, program is moved towards step v).
U) the calibration prompting 80: microprocessor 34 control display 36 carry out the calibration that loses of electric sphygmomanometer and point out.Reminding method can be with shown absolute difference with about per second once interruption or the mode of flicker show.The demonstration time can be 5-10 second.
V) EP (end of program) 82: electric sphygmomanometer finishes blood pressure measurement.
When describing this utility model with illustrative scheme, this description is not limited on the limited meaning of being explained.To the difference transformation of illustrative approach, and other creationary scheme, be obvious for the people who grasps above-mentioned technology.Therefore, can expect that any transformation or specific scheme all will drop in the true scope of the present utility model.
Claims (5)
1. electric sphygmomanometer, it is characterized in that comprising: the pressure transducer of two-way at least that connects microprocessor respectively by electronic circuit separately, wherein first via pressure transducer and electronic circuit thereof are the measure portion that is in normally open, and the second road pressure transducer and electronic circuit thereof are the measure portion that is in normal off status; Described two-way pressure transducer connects same inflatable part, and described inflatable part connects pressure-producing part and decompression member respectively; The described measure portion that is in normal off status is measured the air pressure in the same inflatable part with the measure portion of normally open in the mode of opening periodically automatically, and calculate by described microprocessor, when the difference of two-way pressure measuring value during, provide the calibration prompting or report to the police greater than given error permissible value.
2. electric sphygmomanometer according to claim 1 is characterized in that: described providing calibrated prompting or warning, carried out by the display of microprocessor control.
3. electric sphygmomanometer according to claim 1, it is characterized in that: the power supply of the second road pressure transducer and electronic circuit thereof is supplied with by the detection on and off switch of microprocessor control, this switch is the electronic hardware switch that is independent of microprocessor, or, the second road pressure transducer and electronic circuit thereof are used selectively by this switch by the software switch that microprocessor I/O mouth defines; The second road pressure transducer is connected with inflatable part by a switch air valve by microprocessor control, and microprocessor pressurizes to the second road pressure transducer selectively by this switch air valve.
4. electric sphygmomanometer according to claim 3 is characterized in that: the normality of described detection on and off switch disconnects, thus the not power supply under normal conditions of the second road pressure transducer and electronic circuit thereof; Equally, the normality of described switch air valve disconnects, thereby the input of the second road pressure transducer does not have air pressure; The described electric sphygmomanometer of the each use of operator, its pressure measxurement all is to finish by first via pressure transducer and electronic circuit thereof, and before the blood pressure measurement process finished each time, microprocessor all refreshed the access times record of electric sphygmomanometer.
5. electric sphygmomanometer according to claim 1 is characterized in that: described electric sphygmomanometer all has an initialization procedure when powering on starting at every turn, and this initialization procedure comprises the access times record of checking electric sphygmomanometer; When these access times were the integral multiple of a predetermined number, microprocessor was opened the switch air valve and is detected on and off switch, starts the second road pressure transducer and electronic circuit, and first via pressure transducer and electronic circuit are done the automatic pressure error-detecting; Simultaneously the pressure in the inflatable part is measured by the two-way pressure transducer, and with the two-way pressure signal that produces input microprocessor all, microprocessor calculates both errors; If error is greater than an assigned error permissible value, display reminds the operator to note with the display mode of glint error value.
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| CNU2008201084413U CN201234977Y (en) | 2008-05-30 | 2008-05-30 | Electronic sphygmomanometer |
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| CNU2008201084413U CN201234977Y (en) | 2008-05-30 | 2008-05-30 | Electronic sphygmomanometer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143780A1 (en) * | 2008-05-27 | 2009-12-03 | Precision Medical Technology Ltd. | A method for automatic error detection in pressure measurement and an electronic sphygmomanometer |
| CN102596018A (en) * | 2009-11-13 | 2012-07-18 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN102639053A (en) * | 2009-11-13 | 2012-08-15 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN106108875A (en) * | 2016-07-29 | 2016-11-16 | 济南舜风科技有限公司 | Feel the pulse wrist strap and there is the composite electronic pulse condition analyser of this wrist strap of feeling the pulse |
| CN107966236A (en) * | 2018-01-18 | 2018-04-27 | 深圳市永盟电子科技限公司 | Pressure sensor, sphygmomanometer and pressure sensor manufacture method |
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2008
- 2008-05-30 CN CNU2008201084413U patent/CN201234977Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143780A1 (en) * | 2008-05-27 | 2009-12-03 | Precision Medical Technology Ltd. | A method for automatic error detection in pressure measurement and an electronic sphygmomanometer |
| CN101589947B (en) * | 2008-05-27 | 2012-05-30 | 普立思胜医疗技术(丹阳)有限公司 | Automatic error detection method in pressure measurement and electronic sphygmomanometer |
| CN102596018A (en) * | 2009-11-13 | 2012-07-18 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN102639053A (en) * | 2009-11-13 | 2012-08-15 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN102639053B (en) * | 2009-11-13 | 2015-01-07 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN102596018B (en) * | 2009-11-13 | 2015-07-01 | 欧姆龙健康医疗事业株式会社 | Electronic sphygmomanometer |
| CN106108875A (en) * | 2016-07-29 | 2016-11-16 | 济南舜风科技有限公司 | Feel the pulse wrist strap and there is the composite electronic pulse condition analyser of this wrist strap of feeling the pulse |
| CN107966236A (en) * | 2018-01-18 | 2018-04-27 | 深圳市永盟电子科技限公司 | Pressure sensor, sphygmomanometer and pressure sensor manufacture method |
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