CN103961079A - Inflation and deflation method and system for blood pressure measurement - Google Patents
Inflation and deflation method and system for blood pressure measurement Download PDFInfo
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- CN103961079A CN103961079A CN201410191393.9A CN201410191393A CN103961079A CN 103961079 A CN103961079 A CN 103961079A CN 201410191393 A CN201410191393 A CN 201410191393A CN 103961079 A CN103961079 A CN 103961079A
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 claims description 74
- 238000013022 venting Methods 0.000 claims description 32
- 238000013459 approach Methods 0.000 claims description 18
- 230000008034 disappearance Effects 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000036772 blood pressure Effects 0.000 abstract description 8
- 230000035487 diastolic blood pressure Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000035488 systolic blood pressure Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000001953 Hypotension Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 208000021822 hypotensive Diseases 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention provides an inflation and deflation method and system for blood pressure measurement, wherein the method comprises the following steps: and (3) an inflation process: inflating the cuff and detecting the pulse waveform, and continuing to inflate at a certain air pressure value when the pulse waveform disappears; air release process: the cuff is deflated. Because the blood pressure of different users is different, the time for the pulse waveform to disappear is different, and the inflating time is controlled according to the disappearing time of the detected pulse waveform, so that the inflating adjustment is realized according to the individual difference, and the good user experience is obtained.
Description
Technical field
The present invention relates to blood pressure measurement field, relate in particular to a kind of inflation/deflation method and system for blood pressure measurement.
Background technology
Blood pressure is an important indicator that characterizes human health status, at daily health caring and medical care field, wishes to obtain at any time, accurately and rapidly pressure value.
In non-invasive blood pressure monitoring field, oscillographic method is a kind of method of generally using, and it is by cuff inflating pressure interruption artery blood flow, then slowly reduces pressure, and obtains systolic pressure and the diastolic pressure of human body according to the variation of the pressure pulse spreading out of in decompression arm.
At present, conventional electric sphygmomanometer adopts oscillography ratio juris to carry out Measure blood pressure more.Main step is: first, the air pressure in cuff is charged to a fixing value; Then, with ladder or mode at the uniform velocity, exit, the variation of measuring pulse wave in the process of venting, then, obtains pressure value.Yet, because being is inflated to fixing value, the difference for different users due to blood pressure, for hypotensive people, Measuring Time is long, and for the people of hyperpiesia, can need QI invigorating or measure unsuccessfully, cannot adjust according to individual variation, cannot obtain good user and experience.In addition,, in deflation course, be sometimes also difficult to obtain desirable waveform quantity.
Summary of the invention
Embodiments of the invention provide a kind of inflation/deflation method and system for blood pressure measurement, realize and inflate adjusting according to individual variation.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
An inflation/deflation method for blood pressure measurement, comprising:
Gas replenishment process: inflate and detect pulse wave to cuff, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
Deflation course: give cuff deflation.
Preferably,
The step of deflation course is specially:
Carry out linear deflation;
When static pressure and the second static pressure approach, be converted to ladder venting;
When static pressure and the first static pressure approach, be converted to linear deflation;
Wherein, the first static pressure is that in gas replenishment process, pulse wave goes out static pressure corresponding to now, and the second static pressure is pulse wave disappearance static pressure corresponding to the moment in gas replenishment process.
Preferably, the inflation rate before the inflation rate between pulse wave appearance and pulse wave disappearance is less than pulse wave appearance.
Preferably, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave appearance and pulse wave disappearance.
Preferably, after the inflation that continues certain atmospheric pressure value, before giving cuff deflation, also comprise: the hyperbar value certain hour that keeps cuff.
Preferably, the method that detects pulse wave in gas replenishment process is: the pressure signal in the cuff collecting is carried out to filtering and amplification, then, carry out analog digital conversion, the signal after conversion is calculated, to obtain the amplitude of pulse wave.
In addition, the present invention also provides a kind of air-charging and air-discharging system for blood pressure measurement, comprising:
Inflation unit, is used to cuff inflation;
Pulse signal detecting unit, for detection of pulse wave;
Ventilating control unit, for when pulse wave disappears, controls the inflation that inflation unit continues certain atmospheric pressure value;
Venting unit, is used to cuff deflation.
Preferably, this system also comprises:
Static pressure signal capturing unit, for obtaining static pressure;
Venting control unit, for when static pressure and the second static pressure approach, controlling the cell translation of exitting is that ladder is exitted; When static pressure and the first static pressure approach, controlling venting cell translation is linear deflation; Wherein, the first static pressure is that in gas replenishment process, pulse wave goes out static pressure corresponding to now, and the second static pressure is pulse wave disappearance static pressure corresponding to the moment in gas replenishment process.
Preferably, ventilating control unit, also for controlling inflation rate, the inflation rate before the inflation rate between pulse wave appearance and pulse wave disappearance is less than pulse wave appearance.
Preferably, ventilating control unit, also for controlling inflation rate, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave appearance and pulse wave disappearance.
Preferably, described ventilating control unit, also keeps hyperbar value certain hour for controlling cuff.
Preferably, pulse signal detecting unit comprises: filter circuit, amplifying circuit, analog to digital conversion circuit and computing unit, pressure signal in the cuff collecting is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then pass through computing unit, thereby obtain the amplitude of pulse wave.
The inflation/deflation method and system for blood pressure measurement that the embodiment of the present invention provides, in to cuff inflation, carry out the detection of pulse wave, the blood pressure of different user is different, the asynchronism(-nization) that its pulse wave disappears, according to the extinction time that detects pulse wave, control the time of inflation, thereby realize, according to individual variation, inflate adjusting, to obtain good user, experience.
Further, the static pressure when pulse wave of record occurs during according to inflation and when pulse wave disappears, when venting, carry out the conversion of linear deflation and ladder venting, when having guaranteed the speed of venting, take into account the quantity of obtained waveform and the precision of measurement.
Accompanying drawing explanation
The schematic diagram of static pressure signal and pulse signal in gas replenishment process when Fig. 1 is oscillographic method Measure blood pressure;
Fig. 2 is according to the flow chart of the inflation/deflation method for blood pressure measurement of the embodiment of the present invention;
Fig. 3 is according to the time diagram of the inflation/deflation air pressure of the embodiment of the present invention;
Fig. 4 is according to the structural representation of the air-charging and air-discharging system for blood pressure measurement of the embodiment of the present invention.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention; but the present invention can also adopt other to be different from alternate manner described here and implement; every content that does not depart from technical solution of the present invention; any simple modification, equivalent variations and the modification following examples done according to technical spirit of the present invention; all still belong in the scope of technical solution of the present invention protection, so the present invention is not subject to the restriction of following public specific embodiment.
As shown in Figure 1, for oscillographic method static pressure signal and pulse signal schematic diagram over time in the gas replenishment process of blood pressure measurement, as shown in the figure, in inflating pressure process, enhancing along with pressure, pulse wave occurs, along with waveform grow slowly, can arrive the point that corresponding diastolic pressure is corresponding, then pulse wave can become precipitous, continue inflating pressure, pulse wave can reach maximum gradually, and peak value that then can waveform starts to reduce, when arriving point corresponding to systolic pressure, pulse wave can diminish suddenly, then disappears.And deflation course is the inverse process of gas replenishment process, in deflation course, gather pulse wave, measure diastolic pressure and systolic pressure, thereby obtain corresponding pressure value.
The present invention, just according to the extinction time that detects pulse wave, controls the time of inflation, thereby realize, according to individual variation, inflates adjusting.The present invention proposes following concrete scheme:
An inflation/deflation method for blood pressure measurement, comprising:
To cuff, inflate and detect pulse wave, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
Give cuff deflation.
In the present invention, in to cuff inflation, carry out the detection of pulse wave, the blood pressure of different user is different, the asynchronism(-nization) that its pulse wave disappears, according to the extinction time that detects pulse wave, control the time of inflation, thereby realize, according to individual variation, inflate adjusting, to obtain good user, experience.
In order to improve the speed of venting, guarantee the accuracy of measurement, in inflation simultaneously, when pulse wave appearing and subsiding, record the static pressure in the corresponding moment of pulse wave appearing and subsiding, in venting, according to the static pressure in this corresponding moment, select linear deflation or ladder venting.Particularly, when pulse wave occurs, the static pressure that records this moment is the first static pressure; When pulse wave disappears, the static pressure that records this moment is the second static pressure.When venting, advanced line linearity venting; Then, when static pressure and the second static pressure approach, be converted to ladder venting; When static pressure and the first static pressure approach, be converted to linear deflation.The method, when having guaranteed the speed of venting, takes into account the quantity of obtained waveform and the precision of measurement.
For a better understanding of the present invention, below with reference to specific embodiment and 2 pairs of embodiments of the invention of flow chart, be described in detail.
In the present embodiment, as shown in Figure 2, first, cuff is inflated, carried out the detection of pulse wave simultaneously.
When pulse wave being detected and occur, record static pressure now, be the first static pressure a, the speed of this section of time inflation is V
1.
Then, proceeding inflation, when pulse wave disappearance being detected, record static pressure now, is the second static pressure b, and the inflation rate of this period is V
2.
Then, continue the inflation of certain atmospheric pressure value, common empirical value is the inflation of carrying out 25mmhg, and the inflation rate of this period is V
3.In the present embodiment, the inflation rate V of different phase
3, V
2, V
1difference, inflation rate V
3and V
1all be greater than inflation rate V
2, like this, the stage occurring in impulse waveform adopts slower speed, and other stages adopt aeration speed faster, when making to guarantee inflation rate, can also guarantee the accuracy of measuring.
Then, keep this maximum gas pressure value regular hour, as the time of 1S, so that stable gas pressure is lived.
Then, enter the venting stage.
In the present embodiment, first, carry out linear deflation, exit speed at the uniform velocity, air pressure evenly declines.
In deflation course, detect static pressure, when static pressure approaches the second static pressure b, be converted to ladder venting, keep, after certain atmospheric pressure value certain hour, when dropping to another atmospheric pressure value and keeping certain, so repeatedly carrying out.Wherein, approach the second static pressure b and refer in the certain limit of static pressure b, for example, can think and approach the second static pressure in the scope at (b ± b*10%) time, according to the difference of data collection cycle, this scope can be carried out different settings.
Then, when static pressure approaches the second static pressure a, be converted to linear deflation.Wherein, approach the first static pressure a and refer in the certain limit of static pressure a, for example, can think and approach the first static pressure in the scope at (a ± a*10%) time, according to the difference of data collection cycle, this scope can be carried out different settings.
Certainly, in whole deflation course, need to gather pulse wave, in deflation course, can collect the respective waveforms of diastolic pressure and systolic pressure, and then obtain pressure value.
In the present invention, can detect pulse wave by suitable mode, in the present embodiment, by sensor, the pressure signal in cuff detected, this signal is integrated signal, after filtering and amplifying, carry out analog digital conversion, obtain digital signal, the digital signal after conversion is calculated, can obtain the amplitude of pulse wave.
As shown in Figure 3, be the air pressure-time diagram in the inflation/deflation process of the embodiment of the present invention, in whole inflation/deflation process, corresponding a plurality of different states.In aeration phase, pulse wave first do not detected; Then, be pressurized to after a point value, pulse wave detected; Continue to be pressurized to after b point value, pulse wave disappears; Then 25mmhg pressurizes; Then, keep the 1s time, enter plateau; Then, enter the venting stage, in the venting stage, advanced line linearity venting, until decompression is to b point value; Then, carry out ladder venting, until decompression is to a point value; Continue, carry out linear deflation.Between a point value and b point value, systolic pressure and diastolic pressure can be detected, and then obtain pressure value.
The inflation/deflation method of the present embodiment, realizes and inflate according to individual variation adjustings, obtains good user's experience, and meanwhile, venting speed soon and be beneficial to accurate measurement.
In addition, the present invention also provides the air-charging and air-discharging system for blood pressure measurement corresponding with said method and embodiment.
Shown in figure 4, this system comprises:
Inflation unit, is used to cuff inflation;
Pulse signal detecting unit, for detection of pulse wave;
Ventilating control unit, for when pulse wave disappears, controls the inflation that inflation unit continues certain atmospheric pressure value;
Venting unit, is used to cuff deflation.
In specific embodiment, inflation unit is air pump, and venting unit is air bleeding valve.
In specific embodiment, as shown in Figure 4, also comprise: static pressure signal capturing unit, for obtaining static pressure; And venting control unit, for when static pressure and the second static pressure approach, controlling venting cell translation is ladder venting; When static pressure and the first static pressure approach, controlling venting cell translation is linear deflation; Wherein, the first static pressure is that in gas replenishment process, pulse wave goes out static pressure corresponding to now, and the second static pressure is pulse wave disappearance static pressure corresponding to the moment in gas replenishment process.
Wherein, pulse signal detecting unit comprises: filter circuit, amplifying circuit, analog to digital conversion circuit and computing unit, pressure signal in the cuff collecting is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then by computing unit, calculate, thus the amplitude of acquisition pulse wave.
Wherein, ventilating control unit, also for controlling inflation rate, the inflation rate before the inflation rate between pulse wave appearance and pulse wave disappearance is less than pulse wave appearance.And the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave appearance and pulse wave disappearance.
Described ventilating control unit, also keeps hyperbar value certain hour for controlling cuff.
The present invention discloses as above with preferred embodiment, yet not in order to limit the present invention.Any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.
Claims (12)
1. for an inflation/deflation method for blood pressure measurement, it is characterized in that, comprising:
Gas replenishment process: inflate and detect pulse wave to cuff, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
Deflation course: give cuff deflation.
2. inflation/deflation method according to claim 1, is characterized in that, the step of deflation course is specially:
Carry out linear deflation;
When static pressure and the second static pressure approach, be converted to ladder venting;
When static pressure and the first static pressure approach, be converted to linear deflation;
Wherein, the first static pressure is that in gas replenishment process, pulse wave goes out static pressure corresponding to now, and the second static pressure is pulse wave disappearance static pressure corresponding to the moment in gas replenishment process.
3. inflation/deflation method according to claim 1 and 2, is characterized in that, the inflation rate before the inflation rate between pulse wave appearance and pulse wave disappearance is less than pulse wave appearance.
4. inflation/deflation method according to claim 1 and 2, is characterized in that, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave appearance and pulse wave disappearance.
5. inflation/deflation method according to claim 1, is characterized in that, after the inflation that continues certain atmospheric pressure value, before giving cuff deflation, also comprises: the hyperbar value certain hour that keeps cuff.
6. inflation/deflation method according to claim 1, is characterized in that, the method that detects pulse wave is: the pressure signal in the cuff collecting is carried out to filtering and amplification, then, carry out analog digital conversion, the signal after conversion is calculated, to obtain the amplitude of pulse wave.
7. for an air-charging and air-discharging system for blood pressure measurement, it is characterized in that, comprising:
Inflation unit, is used to cuff inflation;
Pulse signal detecting unit, for detection of pulse wave;
Ventilating control unit, for when pulse wave disappears, controls the inflation that inflation unit continues certain atmospheric pressure value;
Venting unit, is used to cuff deflation.
8. air-charging and air-discharging system according to claim 7, is characterized in that, this system also comprises:
Static pressure signal capturing unit, for obtaining static pressure; Venting control unit, for when static pressure and the second static pressure approach, controlling the cell translation of exitting is that ladder is exitted; When static pressure and the first static pressure approach, controlling venting cell translation is linear deflation; Wherein, the first static pressure is that in gas replenishment process, pulse wave goes out static pressure corresponding to now, and the second static pressure is pulse wave disappearance static pressure corresponding to the moment in gas replenishment process.
9. according to the air-charging and air-discharging system described in claim 7 or 8, it is characterized in that, ventilating control unit, also for controlling inflation rate, the inflation rate before the inflation rate between pulse wave appearance and pulse wave disappearance is less than pulse wave appearance.
10. according to the air-charging and air-discharging system described in claim 7 or 8, it is characterized in that, ventilating control unit, also for controlling inflation rate, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave appearance and pulse wave disappearance.
11. air-charging and air-discharging systems according to claim 7, is characterized in that, described ventilating control unit also keeps hyperbar value certain hour for controlling cuff.
12. air-charging and air-discharging systems according to claim 7, it is characterized in that, pulse signal detecting unit comprises: filter circuit, amplifying circuit, analog to digital conversion circuit and computing unit, pressure signal in the cuff collecting is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then by computing unit, calculate, thus the amplitude of acquisition pulse wave.
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| CN201410191393.9A CN103961079B (en) | 2014-05-07 | 2014-05-07 | Inflation and deflation method and system for blood pressure measurement |
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| CN201410191393.9A CN103961079B (en) | 2014-05-07 | 2014-05-07 | Inflation and deflation method and system for blood pressure measurement |
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Cited By (5)
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| CN104720778A (en) * | 2015-04-09 | 2015-06-24 | 陶军 | Remote blood pressure measuring system and implementation method thereof |
| CN110013233A (en) * | 2019-04-04 | 2019-07-16 | 博脉有限公司 | Pulse condition analyser and its control method |
| CN111839487A (en) * | 2020-06-18 | 2020-10-30 | 郑昕 | Blood pressure measuring method and system |
| WO2020248949A1 (en) * | 2019-06-10 | 2020-12-17 | 华为技术有限公司 | Blood pressure measurement method and electronic device |
| CN117898690A (en) * | 2024-03-19 | 2024-04-19 | 深圳市微克科技股份有限公司 | Inflation control method, inflation control system and storage medium for watch type blood pressure detection |
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| CN117898690B (en) * | 2024-03-19 | 2024-05-24 | 深圳市微克科技股份有限公司 | Inflation control method, inflation control system and storage medium for watch type blood pressure detection |
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| CN103961079B (en) | 2015-09-16 |
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