CN1345571A - Hemadynamometry and apparatus thereof - Google Patents
Hemadynamometry and apparatus thereof Download PDFInfo
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- CN1345571A CN1345571A CN 00131654 CN00131654A CN1345571A CN 1345571 A CN1345571 A CN 1345571A CN 00131654 CN00131654 CN 00131654 CN 00131654 A CN00131654 A CN 00131654A CN 1345571 A CN1345571 A CN 1345571A
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Abstract
The invention discloses a method for measuring blood pressure and its apparatus. Mean arterial pressure is measured as a reference to highest-pressure value of blood-pressure meter with air charged. With different calculating models being concerted, the systolic blood pressure and diastolic blood pressure can be determined from the pressure value that is lower than pressure value of traditional blood-pressure meter with air charged. So the effects of comfort, speediness as well as accurate to measure blood pressure are reached.
Description
The present invention relates to a kind of blood pressure measuring method and device thereof, particularly a kind of tradition of improving need be forced into the high pressure then blood pressure measuring method and the device thereof of release of pressure.
Human heart is a pump with pulsation, blood can be pressed in the tremulous pulse along with each cardiac muscle periodically shrinks (contract) by spells, and form the pressure pulsation ripple (pulse wave) of irregular waveform in Arterial system, also cause tremulous pulse to produce the phenomenon of crooked (flex) or vibration (oscillate) simultaneously.The baseline pressure that presents in the pulse wave is so-called diastolic pressure (diastolicpressure), and---be about 80mmHg, and the pressure of peak being systolic pressure (systolicpressure)---is about 120mmHg.Poor---being about 40mmHg---of these two pressure is called pulsation and presses (pulse pressure); Another be called " mean arterial pressure " (mean arterialpressure, MAP) representative be with the time be average weighted pressure value.
Known have various blood pressure measuring method can record above-mentioned different pressure value with device, modal mode is the flat cuff of tying up at upper arm with (cuff) mostly, via the endarterial blood flow of compressing arm behind the inflation, afterwards again by the gentle gas that releases in the cuff, utilize stethoscope to listen the sound of pulse simultaneously, be so-called Korotkoff sound, this pulse sound is the sound of following the extensive wilful proper flow of blood to be produced, and the further reduction of the pressure in cuff just can be can't hear this pulse sound.So when what hear the representative of the pairing cuff pressure of primary pulse sound is systolic pressure, and when can't hear pulse sound, just can measure diastolic pressure.More than the mode of this measurement blood pressure generally be referred to as " method of auscultation (auscultatory method) ".
Can be applicable on the electronic blood pressure measuring device in the auscultation mode, utilize an air pump automatically with cuff inflation, the signal that pulse sound is converted to electronics by a microphone is detected by a circuit again, just can measure systolic pressure and diastolic pressure.Other many different blood pressure measurement modes are certainly also arranged, and for example a kind of is to move (Doppler shifts) by ultrasound wave by the multispectral pleasure that reflection caused of arterial wall to record pressure value, another kind also can directly instrument be inserted measure in the blood vessel blood pressure.But, except above-mentioned " auscultation mode ", the blood pressure measurement mode of another kind of the most normal employing is so-called: the method for pulse wave (oscillometric method).
The principle of pulse wave mode is based on heart and injects the pulsation that blood can cause tremulous pulse, all has the variation of this kind pulsation to exist even be close to or be positioned at the arm regions of cuff coating.In fact pressure changes the pulsation meeting cause and passes to cuff itself via tremulous pulse, and the pressure that provides by this small variation and cuff compares, and just can be measured the variable quantity of arterial pulse by a pressure transmitter (transducer) that is arranged on the cuff place.This pulsation is referred to as complex wave (complexes), has found on the scientific principle that it has a peak amplitude (peak-to-peak amplitude) between systolic pressure and diastolic pressure, when being increased to maximum, with regard to the physiology, then approaches MAP; When finding that further complex wave amplitude that cuff pressure causes equals systolic pressure and diastolic pressure, then have with amplitude be the specific corresponding relation of maximum one.Therefore, " method of pulse wave " is to come amount to get pressure value based on the complex wave amplitude of detecting when the different cuff pressure.
Yet, above-mentioned " method of pulse wave " has its shortcoming, needing when promptly measuring cuff is inflated persistent pressure to the value of pressing far above normal contraction, generally is to be inflated near 180mmHg to 240mmHg not wait, to meet the pressure value that energy must have the hyperpietic for the sake of assurance.But the process that just causes blood pressure measurement thus has suitable discomfort, reason is that the too high cuff that makes of the blowing pressure will tightly restraint arm for some time, cause user must stand suitable painful just energy and get blood pressure, especially for fat people, its discomfort that causes is even more serious, even causes the injury to user in the process that also may tighten because of cuff.In addition, for the hypotensive, more seem very uneconomical and effectively obviously do not need to be pressurized to so high pressure, but, cause using the uncomfortable situation that to bring because product can't be taken into account the design of hommization.
Corresponding to people now to the requirement of material life, blood pressure measuring metering method more than the row year is real further improved needs, how to take into account to make under blood pressure measurement accurately and can provide relatively also just important all the more than the comfortableness of hommization in the measuring process.
In view of this, the object of the present invention is to provide a kind of take into account blood pressure measuring method and device thereof comfortable and accurately measurement.
According to the purpose of the invention described above, with regard to first viewpoint, the blood pressure measuring method that provides may further comprise the steps: (a), apply the tremulous pulse of a pressure compression one human body, and to block flowing of blood in the tremulous pulse; (b), continue reducing compressing to tremulous pulse makes and can produce an enhanced gradually blood flow in the tremulous pulse; (c), the pulsation that each tremulous pulse back-pressure is produced on each different pressures value of detecting in the process of above-mentioned blood pressure lowering; (d), the conversion pulsation becomes a voltage signal; (e), the processing voltage signal forms a succession of amplitude wave, and is linked to be one section curve according to the peak value of each amplitude wave; (f), repeat aforementioned be forced into obtain curve be higher than average artery pressure one predetermined value of human body in steps up to applied pressure, for example be 20～40mmHg, and the curve that is obtained is enough drawn a pulsation by curve-fitting method (curvefitting) and is sealed curve (oscillometric envelop); And (g), seal curve according to pulsation and determine Systolic pressure and Diastolic pressure.
Wherein, it is one section ascending curve, one section curve with peak value and one section decline curve that the longitudinal axis is drawn that the curve of above-mentioned acquisition comprises at least with the amplitude, and average artery pressure is the maximum that the curve calculating for aforementioned tool peak value goes out.
In addition, with regard to second viewpoint, the blood pressure measuring method that provides comprises the following steps: that (a) applies the tremulous pulse of a pressure compression one human body, and to block flowing of blood in the tremulous pulse, wherein Jia Ya pressure is mean arterial pressure one predetermined value that is higher than human body; (b) continue reducing compressing to tremulous pulse makes and can produce an enhanced gradually blood flow in the tremulous pulse; (c) in above-mentioned blood pressure lowering process, detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, and obtain the pulsation ripple on each different time points; (d) the conversion pulsation becomes a voltage signal; (e) handle voltage signal and form a succession of amplitude wave, and be linked to be one section curve with peak value according to the peak value of each amplitude wave; An and Systolic pressure that (f) determines human body according to Diastolic pressure, mean arterial pressure and pulse wave.
At last, with regard to the 3rd viewpoint, the blood pressure measuring method that is provided comprises the following steps: that (a) applies the tremulous pulse of a pressure compression one human body, to block flowing of blood in the tremulous pulse; (b) continue reducing compressing to tremulous pulse makes and can produce an enhanced gradually blood flow in the tremulous pulse; (c) in the process of above-mentioned blood pressure lowering, detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, and obtain the pulse wave on each different time points; (d) the conversion pulsation becomes a voltage signal; (e) handle voltage signal and form a succession of amplitude wave, and be linked to be one section curve according to the peak value of each amplitude wave; (f) judge that curve is the curve with a maximum, otherwise repeat aforementioned be forced into obtain curve institute in steps; (g) a complete Diastolic pressure and the mean arterial pressure of release pressure to determine human body according to curve; An and Systolic pressure that (h) determines human body according to Diastolic pressure, mean arterial pressure and pulse wave.
Wherein, the curve of above-mentioned acquisition is tried to achieve its maximum and is mean arterial pressure, and preferable Systolic pressure should decide according near the pulse wave obtained mean arterial pressure.
Below in conjunction with embodiment and accompanying drawing thereof above-mentioned purpose of the present invention, feature and advantage are described in further detail.
Be transverse axis with time when Fig. 1 is known measurement blood pressure, the corresponding relation curve synoptic diagram that the moulding pressure (cuffpressure) of inflation or pulse amplitude (oscillation amplitude) go out for the longitudinal axis is represented in the cuff;
Fig. 2 is to be transverse axis with time when measuring blood pressure in the first embodiment of the invention, and the moulding pressure of inflation or pulse amplitude are the represented corresponding relation curve synoptic diagram that goes out of the longitudinal axis in the cuff;
Fig. 3 is that changing with the moulding pressure of inflating in the cuff in the corresponding diagram 2 is transverse axis, and pulse amplitude is that curve synoptic diagram is sealed in the pulsation of the represented corresponding relation that goes out of the longitudinal axis;
Fig. 4 is to be transverse axis with time when measuring blood pressure in the second embodiment of the invention, and the moulding pressure of inflation or pulse amplitude are the represented corresponding relation curve synoptic diagram that goes out of the longitudinal axis in the cuff;
Fig. 5 is to be transverse axis with time when measuring blood pressure in the third embodiment of the invention, and the moulding pressure of inflation or pulse amplitude are the represented corresponding relation curve synoptic diagram that goes out of the longitudinal axis in the cuff; And
Fig. 6 is that the present invention is a transverse axis with time when measuring blood pressure, and pressure is near the sketch map of the pulse wave the represented corresponding mean arterial pressure that goes out of the longitudinal axis.
Please refer to Fig. 1, is transverse axis with time when it has shown known measurement blood pressure, and the moulding pressure of inflation or pulse amplitude are the sketch map of the represented corresponding relation curve that goes out of the longitudinal axis in the cuff.As shown in the figure, from beginning the time T of blood pressure measurement
0Light, cuff need be inflated continuously and be forced into the default high-voltage value P of sphygomanometer
H, this time T
1Force value, generally speaking, can record hyperpietic's blood pressure in order to ensure sphygomanometer, must be set at systolic pressure P far above the normal human
s, otherwise just possible generating capacity is less than the situation of hyperpietic's systolic pressure, P for instance
HMay be set in 180mmHg or higher value.Then, in the time T that discharges the cuff internal pressure
1～T
2In, will produce pulsation according to aforementioned tremulous pulse, by the compound wave amplitude of measuring each different time points, just can obtain to seal curve (oscillometricenvelop) as the pulsation of curve 10 by the peak value line of each amplitude.At last, in time T
2Learn on the point that pressure reduced to enough low value P
L, for example far below normal human's diastolic pressure P
DThe time, the pressure in the cuff just is released fully, finishes the measuring process of whole sphygomanometer.
Known measuring method focuses on the pulsation that how accurately obtains release of pressure process medium-sized artery back-pressure (counterpressure), so as to utilizing various computational methods to determine systolic pressure P by the curve of drawing out 10 of sealing again
SWith diastolic pressure P
DYet the inflation moulding pressure of known blood pressure measuring device is to be benchmark with the systolic pressure, and therefore just keeping away unavoidably to have very high the blowing pressure.
First executes example:
Referring again to Fig. 2, by contrast, the method for blood pressure measurement of the present invention can be found out difference significantly, promptly adopts the segmentation pressing mode, as being divided into into three sections persistent pressure section in this preferred embodiment.Only be forced into a p in first section pressure process earlier
1Value is immediately at time t
1To t
2Interior dispensing pressure to one p
2Value, the main purpose of this section pressurization release of pressure is preferably and can records the pulsating wave curve C that comprises diastolic pressure
T1, can be considered with respect to sealing curve 10 among Fig. 1 near T
2One section decline curve of time.Then, reduce to p at pressure
2In time, be promoted to force value via inflation pressurization again to surmount p
1A p
3Value is similarly immediately at time t
3To t
4In pressure is released into a p
4Value, the lucky pulsating wave curve C that in this section pressurization release of pressure process, obtains to include MAP in this preferred embodiment
T2, can be considered with respect to sealing one section curve that curve 10 produces amplitude maximum among Fig. 1.According to curve C
T2Can calculate a MAP value, and blood pressure measuring method of the present invention is forced into a p by this MAP who obtains as the decision final stage especially
5The foundation of value, i.e. p
5Equal MAP and add a predetermined value.At last, at time t
5To t
6In again pressure is released into a p
6Value is by measuring equally to such an extent that comprise the pulsating wave curve C of systolic pressure in the release of pressure process
T3, finish the measuring process of whole sphygomanometer.
Referring again to Fig. 3, according to three sections curve C among Fig. 2
T1, C
T2And C
T3Drawing with the pulse wave amplitude is the longitudinal axis, and cuff pressure is the circle of transverse axis, wherein curve C
T1Can be considered the C of corresponding thick line
P1Curve, similarly, C
T2Corresponding C
P2, C
T4Then correspond to C
P3Then, just can be according to C
P1, C
P2And C
P3Go up obtained pulse wave peak value, obtain pulsation in the curve fitting mode and seal curve 30.Be same as known the whole bag of tricks, can seal curve 30 thus and determine diastolic pressure P
DAnd systolic pressure P
s
Analyze the difference of blood pressure measuring method of the present invention and known measuring method, known measuring method as shown in Figure 1, where drop on owing to can't learn the maximum collapse pressure value of measuring human body, have to be with the pressure setting of cuff inflation in a high value for considering to be suitable for various situations---180mmHg even the high 240mmHg of arriving.Yet, for general normal person, its systolic pressure may be near 130mmHg, or its systolic pressure of doubtful hyperpietic may be at 160mmHg or higher, but focus on anyone equally must accept the not very short urgent arm of high-pressure aerated cuff when measuring blood pressure process, although can hard pressed time be shortened by fast aeration, still to become to pass through high pressure section, by cuff slowly release of pressure finish up to whole measuring process.Moreover blood vessel is via each high pressure compressing, and the generation elastic fatigue also makes can't carry out successive blood pressure measurement, occurs otherwise may have inaccurate situation.And by contrast, the areal survey mode that present embodiment adopted, the highest cuff the blowing pressure, p as the aforementioned
5Maintain only and be higher than on MAP one predetermined value, this predetermined value is set in for example 20mmHg～40mmHg, MAP value with general normal person is about 110mmHg, and with measuring method of the present invention, the blowing pressure is as long as just can easily cosily measure blood pressure to being about about 140mmHg.Its reason is will certainly obtain one section C as described above in the segmentation pressurization release of pressure process
T2(C
P2) curve, this is one to have the curve of peak value, and by C
T2(C
P2) curve can obtain the MAP of human body to be measured earlier, according to general MAP and P
sRelation, add that the present invention must obtain one section ascending curve such as C in addition in segmentation pressurization release of pressure process
T3(C
P1) and one section decline curve such as C
T1(C
P3), therefore can seal curve 30, simultaneously in case obtain the curve with peak value in segmentation pressurization release of pressure process after, the section the blowing pressure value of next section pressurization release of pressure just only needs as described above by P by obtaining in the curve fitting mode
4Be forced into P
5Equal MAP and add a predetermined value.So just improved the uncomfortable shortcoming of known measuring process, main is, it provides the function of fuzzy control (fuzzy control) as can be known by the method for the invention described above segmentation blood pressure measurement, the cuff maximum inflation pressure will be decided by the process of areal survey, and being has different measuring processes according to different human bodies to be measured.In addition, if the pulse wave that the process of segmentation pressurization release of pressure is taken a sample is enough accurate, not only can shorten decompression section t
1～t
2, t
3～t
4And t
5～t
6Time, accelerate the speed of blood pressure measurement, and through curve match mode obtained seal the situation that curve also can the pulsation of actual response blood vessel back-pressure, so that systolic pressure that determines and diastolic pressure also will be suitable is accurate.Certainly, just the pressurization release of pressure process that is preferably in the situation as Fig. 2 at second section obtains C
T2Curve, only spent three sections pressurization release of pressure just to obtain in the whole blood pressure measurement process and sealed curve 30, and may have under the different situations more than three sections segmentation pressurization release of pressure just energy get blood pressure.In addition, among preferred embodiment Fig. 3, possible P
DOr P
SJust drop on the C of sampling respectively
P1Or C
P3On the curve, but also might P
DOr P
SBe not included in the pulse wave curve of sampling, but the same can both obtaining via the step of curve fitting sealed curve 30, and by seal curve 30 decide last measure pressure value P
DAnd P
S
At last, can correspondence design a blood pressure measuring device according to the blood pressure measuring method of the invention described above, it comprises cuff, a controller, a detector, a pressure transmitter, a processor and a computer of an inflatable pressurization and aerofluxus release of pressure.Cuff is coated on the arm place of human body usually, utilizes controller to control the cuff internal pressure, makes cuff be higher than average artery pressure (MAP) predetermined value of human body up to the cuff the blowing pressure by the piecewise release of pressure that pressurizes, and for example is 20～40mmHg; With the pulsation that each tremulous pulse back-pressure is produced on each different pressures value when each section release of pressure of detector detecting cuff.Again by pressure transmitter, it is a voltage signal for being connected cuff in order to the conversion pulsation, reuse processor processing voltage signal forms a succession of amplitude wave, and the peak value of each amplitude wave respectively is linked to be one section curve during according to each section release of pressure, and the curve that is obtained is enough drawn a pulsation by the curve fitting mode and sealed curve.At last, device is sealed curve according to pulsation and is determined Systolic pressure and Diastolic pressure as calculated.
Second embodiment:
Referring again to Fig. 4, with respect to Fig. 1, the method for blood pressure measurement of the present invention can be found out difference significantly, and promptly the maximum of cuff the blowing pressure is fallen, and whole figure can be considered its T than Fig. 1
0～T
1The pressurized segment of time is to right translation, and therefore makes the left side curve of sealing curve 10 of Fig. 1 be cut out a big section, so just can't determine systolic pressure P by the obtained curve 40 of Fig. 4
sValue, reason is because the pressure of pressurized segment inflation is not high enough, belonging to the cumulative curve of amplitude peak in the pulsation complex wave can't completely obtain, therefore the curve that is obtained includes only and can try to achieve average pulse pressure MAP and diastolic pressure P
DIn the case, the present invention adopts with reference to pulse wave and decides systolic pressure.Please refer to Fig. 6, it is to be transverse axis with time, and pressure is near the pulse wave the represented corresponding mean arterial pressure that goes out of the longitudinal axis.Can be pressed in the tremulous pulse by spells along with the periodic contraction of each cardiac muscle according to blood in aforementioned, and form the pressure pulse wave of irregular waveform in Arterial system, the baseline pressure that presents in the waveform pulse wave 60 of contrast Fig. 6 is presses a P
D, and the pressure of peak is systolic pressure P
S, another then be with the time be average weighted pressure value MAP.Therefore, according to by the P that curve determines among Fig. 4
DAnd MAP, again with reference to the pulse wave among the figure 6 60, certainly determine P
sValue.
It is benchmark, MAP and P on average with MAP that present embodiment adopts the inflation moulding pressure
SDifference greatly about about 30mmHg, so clearly just can know P
hCompare P
HAt least can reduce 30mmHg.In the case, the highest cuff the blowing pressure is set in and is higher than on MAP one predetermined value, this predetermined value for example is 20mmHg～40mmHh, MAP value with general normal person is about 110mmHg, with measuring method of the present invention, the blowing pressure approximately is pressurized to about 140mmHg just can easily cosily measure blood pressure.And may raise, but be forced into P for its MAP of hypertensive patient
hThe also more not known P of value
HThe height that comes.So just improved the uncomfortable shortcoming of known measuring process, and relative inflationtime shortened, measured just faster, the effect than power saving has also just been arranged simultaneously.The more important thing is that the invention described above is measured the method for blood pressure can put forward the function of encircleing fuzzy control, be forced into P to set all to maintain under the general measure situation
hFor 140mmHg is an example, utilize and in pressure process, also detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, predict the setting P of this 140mmHg in advance
hWhether enough.Because the pulsation that obtains in the pressure process equally also has corresponding amplitude curve, as long as learn that generally this curve has maximum, just can infer P in view of the above
hBe enough big, otherwise just may adjust P
h, for example can progressively adjust 10mmHg at every turn and assay once more once, to determine enough big P
h, seal the one section curve that has peak value in the curve and can in the release of pressure process, obtain the true pulsation of reaction.Certainly, the pulse amplitude curve that is obtained by pressure process institute summary is more inaccurate, but just as decision P
hReference, determine P
hAfterwards, also need, as seen from Figure 4,, just certainly will that is to say above-mentioned decision P for a curve with peak value in case curve 40 is the cumulative trend of amplitude at the beginning by whether presenting the trend that continues to increase by the amplitude of observing its pulsation in the release of pressure process
hFuzzy control, to guarantee that just the curve of obtaining 40 can determine MAP and P
DValue could further decide P according to the pulse wave as Fig. 6 gained thus again
SValue.In addition, with reference to as during the pulse wave 60 of Fig. 6, be preferably according near the pulse wave obtained mean arterial pressure more representative because the pulse wave of this section gained is more stable, so also just can determine more accurate P in view of the above
S
At last, can correspondence design a blood pressure measuring device according to the blood pressure measuring method of the invention described above, it comprise an inflatable pressurization and aerofluxus release of pressure cuff, a controller, a detector, a pressure transmitter, a processor and a computer.Utilize controller to control the interior pressure of cuff, make cuff can be pressurized to mean arterial pressure one predetermined value that the cuff the blowing pressure is higher than human body release of pressure then, this predetermined value is that deciding its size for example is 20～40mmHg via the pulsation that each tremulous pulse back-pressure is produced on each different pressures value when pressurizeing of detector detecting cuff.Again by pressure transmitter, it is that to be connected in cuff be a voltage signal in order to the conversion pulsation.Form a succession of amplitude wave with the processor processing voltage signal again, and the peak value of each this amplitude wave respectively is linked to be one section curve with peak value during according to release of pressure.At last, determine a Diastolic pressure and a mean arterial pressure of human body, and further obtain a Systolic pressure of human body according to pulse wave according to the curve of gained.
The 3rd embodiment:
Referring again to Fig. 5, with respect to Fig. 4, present embodiment adopts a segmentation pressing mode in inflation section, and it is all identical with second embodiment with the mode of diastolic pressure that all the other try to achieve systolic pressure.
Have two sections persistent pressure section in the present embodiment.Only be forced into a p in first section pressure process earlier
1Value is immediately at time t
1To t
2Interior release pressure to a p
2Value, the main purpose of this section pressurization release of pressure are by in this section curve C
T1In inspect the force value p of this section pressurization
1Whether be higher than MAP, and, represent to obtain in this section amplitude curve the curve of MAP value for maximum according in the process of release of pressure, measuring to such an extent that the pulsating wave amplitude all is the situation that continues reduction.Then, reduce to p at pressure
2Shi Bixu is promoted to force value via inflation pressurization to surmount p again
1A p
3Value is similarly immediately at time t
3Back release pressure, the lucky pulsating wave curve that in this section pressurization release of pressure process, obtains to include MAP in this preferred embodiment, its judgment mode is also very simple, with reference to the curve among Fig. 5 50, at t
3Can get the cumulative curve of amplitude after time in the process of release of pressure, representative continues the curve that release of pressure to complete release of pressure necessarily can obtain having as curve 20 afterwards maximum, so just at t
4Time discharges pressure to obtain curve 50 fully.The above-mentioned control that produces a fuzzy, the peak P that utilizes sectional pressurization release of pressure to come dynamic adjustments to pressurize
h, can determine MAP and P with the curve of guaranteeing to obtain 50
DValue so could further decide P according to the pulse wave as Fig. 3 gained again
SValue.Measure blood pressure according to said method, can set first section pressurization value P earlier
1Do not need too highly, generally normal person's MAP value for example is set at 120mmHg for standard, then all in first section pressurization release of pressure process, obtain curve 50 for most people, so under quite low pressurization value, just can measure blood pressure; And for the curve 50 that can't obtain having maximum in first section pressurization release of pressure process, just continue the pressurization release of pressure of another section again, can set the pressure difference value that this section pressurize again for example is at interval with 20mmHg, just be forced into 140mmHg again, judge whether to be higher than MAP, if just can obtain curve 50, otherwise with regard to the pressurization release of pressure that repeats again to continue up to obtaining curve 50.
At last, can correspondence design a blood pressure measuring device according to the blood pressure measuring method of the invention described above, it comprises cuff, a controller, a detector, a pressure transmitter, a processor and a computer of an inflatable pressurization and aerofluxus release of pressure.Utilize controller to control the cuff internal pressure, make this cuff can be by piecewise average artery pressure (MAP) that release of pressure has been higher than this human body up to this cuff the blowing pressure release of pressure then that pressurizes; By pressure transmitter, it is a voltage signal for being connected in cuff in order to the conversion pulsation again; Form a succession of amplitude wave with the processor processing voltage signal again, and the peak value of each amplitude wave respectively is linked to be one section curve with peak value during according to release of pressure; At last, according to a Diastolic pressure of the curve of gained decision human body with and mean arterial pressure, and further decided a Systolic pressure of human body according to pulse wave.
Though the present invention's preferred embodiment illustrates as above; but it is not in order to limit the present invention; any the those of ordinary skill that professional field is interior; in not breaking away from design of the present invention and scope; change and the profit metal plate when doing a little, so protection scope of the present invention should be as the criterion with the determined scope of claim.
Claims (18)
1, a kind of blood pressure measuring method is characterized in that may further comprise the steps at least:
Apply the tremulous pulse of a pressure compression one human body, to block flowing of blood in this tremulous pulse;
Continue reducing compressing to this tremulous pulse makes and can produce an enhanced gradually blood flow in this tremulous pulse;
The pulsation that each tremulous pulse back-pressure is produced on each different pressures value of detecting in the process of above-mentioned blood pressure lowering;
Change this pulsation and become a voltage signal;
Handle this voltage signal and form a succession of amplitude wave, and be linked to be one section curve according to the peak value of each this amplitude wave;
Repeat aforementionedly to be forced into the institute that obtains curve has been higher than this human body in steps up to this pressure that applies average artery pressure (MAP) predetermined value, and these curves that obtained are enough drawn one by the curve fitting mode and are pulsed and seal curve (oscillometric envelop); And
Seal curve according to this pulsation and determine Systolic pressure and Diastolic pressure.
2, blood pressure measuring method as claimed in claim 1 is characterized in that it is one section ascending curve, one section curve with peak value and one section decline curve that the longitudinal axis is drawn that this curve that obtains comprises at least with the amplitude.
3, to require 2 described blood pressure measuring methods as right, it is characterized in that this predetermined value is 20-40mmHg.
4, a kind of blood pressure measuring device is to measure blood pressure by the pulsation that a human body artery produces, and it is characterized in that comprising at least:
The cuff of one inflatable pressurization and disappointing release of pressure;
One controller provides power to control this cuff internal pressure by a motor, makes this cuff be higher than mean arterial pressure (MAP) predetermined value of this human body up to this cuff the blowing pressure by the piecewise release of pressure that pressurizes;
One detector is in order to detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value when each section release of pressure of this cuff;
One pressure transmitter, being connected in this cuff is a voltage signal in order to change this pulsation;
One processor forms a succession of amplitude wave in order to handle this voltage signal, and the peak value of each this amplitude wave respectively is linked to be one section curve during according to each section release of pressure, and this curve that is obtained is enough drawn a pulsation by the curve fitting mode and sealed curve; And
One computer is sealed curve according to this pulsation and is determined a Systolic pressure and Diastolic pressure.
5, blood pressure measuring device as claimed in claim 4 is characterized in that it is one section ascending curve, one section curve with peak value and one section decline curve that the longitudinal axis is drawn that this curve comprises at least with the amplitude.
6, blood pressure measuring device as claimed in claim 5 is characterized in that this predetermined value is 20-40mmHg.
7, a kind of blood pressure measuring method is characterized in that comprising the following steps: at least
Apply the tremulous pulse of a pressure compression one human body, to block flowing of blood in the tremulous pulse, wherein this pressure is mean arterial pressure (MAP) predetermined value that is higher than human body;
Continue reducing compressing to this tremulous pulse makes and can produce an enhanced gradually blood flow in this tremulous pulse;
In above-mentioned blood pressure lowering process, detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, and obtain the pulsation ripple on each different time points;
Change this pulsation and become a voltage signal;
Handle this voltage signal and form a succession of amplitude wave, and be linked to be one section curve with peak value according to the peak value of each amplitude wave;
Determine a Diastolic pressure and a mean arterial pressure of this human body according to this curve; And
Determine a Systolic pressure of this human body according to this this Diastolic pressure, this mean arterial pressure and this pulse wave.
8, blood pressure measuring method as claimed in claim 7 is characterized in that also being included in scouting in this pressure process and surveys the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, with the value of rough this mean arterial pressure of decision.
9, blood pressure measuring method as claimed in claim 7 is characterized in that this predetermined value is 20-40mmHg.
10, blood pressure measuring method as claimed in claim 7 is characterized in that this Systolic pressure is to decide according near this obtained this mean arterial pressure pulse wave.
11, a kind of blood pressure measuring device is to measure blood pressure by the pulsation that a human body artery produces, and it is characterized in that comprising at least:
The cuff of one inflatable pressurization and aerofluxus release of pressure;
One controller provides power to control this cuff internal pressure by a motor, makes this cuff can be pressurized to mean arterial pressure (MAP) predetermined value that this cuff the blowing pressure is higher than this human body;
One detector in order to detecting the pulsation that each tremulous pulse back-pressure is produced on each different pressures value when the release of pressure of this cuff, and can be obtained the pulse wave on each different time points;
One pressure transmitter, being connected in this cuff is a voltage signal in order to change this pulsation;
One processor forms a succession of amplitude wave in order to handle this voltage signal, and the peak value of each this amplitude wave respectively is linked to be one section curve with peak value during according to release of pressure; And
One computer determines a Diastolic pressure and a mean arterial pressure of this human body according to this curve, and further determines a Systolic pressure of this human body according to this pulse wave.
12, measurement blood pressure device as claimed in claim 11 is characterized in that this detector also detects the pulsation that each tremulous pulse back-pressure is produced on each different pressures value in when pressurization of this cuff, with the value of rough this mean arterial pressure of decision.
13, blood pressure measuring device as claimed in claim 11 is characterized in that this predetermined value is 20-40mmHg.
14, blood pressure measuring device as claimed in claim 11 is characterized in that this Systolic pressure is to decide according near this obtained this mean arterial pressure pulse wave.
15, a kind of blood pressure measuring method is characterized in that comprising the following steps: at least
Apply the tremulous pulse of a pressure compression one human body, to block flowing of blood in this tremulous pulse;
Continue reducing compressing to this tremulous pulse makes and can produce an enhanced gradually blood flow in this tremulous pulse;
In the process of above-mentioned blood pressure lowering, detect the pulsation that each tremulous pulse back-pressure is produced on each different pressures value, and obtain the pulse wave on each different time points;
Change this pulsation and become a voltage signal;
Handle this voltage signal and form a succession of amplitude wave, and be linked to be one section curve according to the peak value of each this amplitude wave;
Judge that this curve is the curve with a maximum, otherwise repeat aforementioned be forced into obtain curve institute in steps;
Release pressure is to determine a Diastolic pressure and a mean arterial pressure of this human body according to this curve fully; And
Determine a Systolic pressure of this human body according to this Diastolic pressure, this mean arterial pressure and this pulse wave.
16, blood pressure measuring method as claimed in claim 15 is characterized in that this Systolic pressure is to decide according near this obtained this mean arterial pressure pulse wave.
17, a kind of blood pressure measuring device is to measure blood pressure by the pulsation that a human body artery produces, and it is characterized in that comprising at least:
The cuff of one inflatable pressurization and aerofluxus release of pressure;
The cuff of one inflatable pressurization and aerofluxus release of pressure;
One controller provides power to control this cuff internal pressure by a motor, makes this cuff can be by piecewise mean arterial pressure (MAP) that release of pressure has been higher than this human body up to this cuff the blowing pressure release of pressure then that pressurizes;
One detector in order to detecting the pulsation that each tremulous pulse back-pressure is produced on each different pressures value when the release of pressure of this cuff, and can be obtained the pulse wave on each different time points;
One pressure transmitter, being connected in this cuff is a voltage signal in order to change this pulsation;
One processor forms a succession of amplitude wave in order to handle this voltage signal, and the peak value of each this amplitude wave respectively is linked to be one section curve with peak value during according to release of pressure; And
One computer determines a Diastolic pressure and a mean arterial pressure of this human body according to this curve, and further determines a Systolic pressure of this human body according to this pulse wave.
18, blood pressure measuring device as claimed in claim 17 is characterized in that this Systolic pressure is to decide according near this obtained this mean arterial pressure pulse wave.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131654 CN1345571A (en) | 2000-09-30 | 2000-09-30 | Hemadynamometry and apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131654 CN1345571A (en) | 2000-09-30 | 2000-09-30 | Hemadynamometry and apparatus thereof |
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| CN1345571A true CN1345571A (en) | 2002-04-24 |
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| CN 00131654 Pending CN1345571A (en) | 2000-09-30 | 2000-09-30 | Hemadynamometry and apparatus thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1296008C (en) * | 2004-09-07 | 2007-01-24 | 深圳迈瑞生物医疗电子股份有限公司 | Non-linear fitting method of restoring the envelope of vibrating pulse wave |
| CN102894964A (en) * | 2011-07-26 | 2013-01-30 | 深圳大学 | Method and device for non-invasively measuring blood pressure |
| CN103169465A (en) * | 2013-04-15 | 2013-06-26 | 瞿浩正 | Algorithm for determining systolic pressure and diastolic pressure in electronic sphygmomanometer |
| CN104042200A (en) * | 2014-06-24 | 2014-09-17 | 北京航空航天大学 | Non-invasive monitoring device and method for beat-to-beat arterial blood pressure |
| CN104055503A (en) * | 2014-06-27 | 2014-09-24 | 广州视源电子科技股份有限公司 | Data processing method of non-invasive hemadynamometer |
| CN104337507A (en) * | 2013-07-23 | 2015-02-11 | 陈秀美 | Pressure vibration type sphygmomanometer for measuring characteristics of pressure pulse belt |
| CN106725403A (en) * | 2017-01-05 | 2017-05-31 | 广东润池科技有限公司 | A kind of blood pressure measuring device |
| CN107174230A (en) * | 2017-06-22 | 2017-09-19 | 嘉兴智杰电子有限公司 | Intelligent sphygmomanometer and its blood pressure metering method |
| CN109310349A (en) * | 2016-06-21 | 2019-02-05 | 高通股份有限公司 | Diastolic blood pressure measurement calibration |
| CN110833403A (en) * | 2018-08-16 | 2020-02-25 | 佳纶生技股份有限公司 | Blood pressure measuring system, method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1296008C (en) * | 2004-09-07 | 2007-01-24 | 深圳迈瑞生物医疗电子股份有限公司 | Non-linear fitting method of restoring the envelope of vibrating pulse wave |
| CN102894964A (en) * | 2011-07-26 | 2013-01-30 | 深圳大学 | Method and device for non-invasively measuring blood pressure |
| CN102894964B (en) * | 2011-07-26 | 2014-08-20 | 深圳大学 | Method and device for non-invasively measuring blood pressure |
| CN103169465A (en) * | 2013-04-15 | 2013-06-26 | 瞿浩正 | Algorithm for determining systolic pressure and diastolic pressure in electronic sphygmomanometer |
| CN103169465B (en) * | 2013-04-15 | 2015-01-07 | 瞿浩正 | Algorithm for determining systolic pressure and diastolic pressure in electronic sphygmomanometer |
| CN104337507A (en) * | 2013-07-23 | 2015-02-11 | 陈秀美 | Pressure vibration type sphygmomanometer for measuring characteristics of pressure pulse belt |
| CN104337507B (en) * | 2013-07-23 | 2016-12-07 | 陈秀美 | Pressure vibration type sphygmomanometer for measuring characteristics of pressure pulse belt |
| CN104042200B (en) * | 2014-06-24 | 2016-02-17 | 北京航空航天大学 | A kind of non-invasive monitoring devices and methods therefor of arteriotony by shooting |
| CN104042200A (en) * | 2014-06-24 | 2014-09-17 | 北京航空航天大学 | Non-invasive monitoring device and method for beat-to-beat arterial blood pressure |
| CN104055503A (en) * | 2014-06-27 | 2014-09-24 | 广州视源电子科技股份有限公司 | Data processing method of non-invasive hemadynamometer |
| CN104055503B (en) * | 2014-06-27 | 2016-09-14 | 广州视源电子科技股份有限公司 | A kind of data processing method of non-invasive blood pressure measuring |
| CN109310349A (en) * | 2016-06-21 | 2019-02-05 | 高通股份有限公司 | Diastolic blood pressure measurement calibration |
| CN109310349B (en) * | 2016-06-21 | 2021-10-29 | 飞利浦医疗信息股份有限公司 | Diastolic blood pressure measurement calibration |
| US10772571B2 (en) | 2016-11-15 | 2020-09-15 | Welch Allyn, Inc. | Method and systems for correcting for arterial compliance in a blood pressure assessment |
| CN106725403A (en) * | 2017-01-05 | 2017-05-31 | 广东润池科技有限公司 | A kind of blood pressure measuring device |
| CN106725403B (en) * | 2017-01-05 | 2019-07-23 | 广东润池科技有限公司 | A kind of blood pressure measuring device |
| CN107174230A (en) * | 2017-06-22 | 2017-09-19 | 嘉兴智杰电子有限公司 | Intelligent sphygmomanometer and its blood pressure metering method |
| CN107174230B (en) * | 2017-06-22 | 2023-10-03 | 深圳市普瑞拓科技有限公司 | Intelligent sphygmomanometer and blood pressure metering method thereof |
| CN110833403A (en) * | 2018-08-16 | 2020-02-25 | 佳纶生技股份有限公司 | Blood pressure measuring system, method and device |
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