CN103961079B - A kind of inflation/deflation method and system for blood pressure measurement - Google Patents
A kind of inflation/deflation method and system for blood pressure measurement Download PDFInfo
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- CN103961079B CN103961079B CN201410191393.9A CN201410191393A CN103961079B CN 103961079 B CN103961079 B CN 103961079B CN 201410191393 A CN201410191393 A CN 201410191393A CN 103961079 B CN103961079 B CN 103961079B
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Abstract
The invention provides a kind of inflation/deflation method and system for blood pressure measurement, the method comprises: gas replenishment process: detect pulse wave to cuff inflation, when pulse wave disappears, continue the inflation of certain atmospheric pressure value; Deflation course: to cuff deflation.Because the blood pressure of different user is different, then the time difference of its pulse wave disappearance, according to the extinction time detecting pulse wave, controls the time of inflating, thus realization carries out inflation adjustment, to obtain good Consumer's Experience according to individual variation.
Description
Technical field
The present invention relates to blood pressure measurement field, particularly relate to a kind of inflation/deflation method and system for blood pressure measurement.
Background technology
Blood pressure is the important indicator characterizing human health status, wishes to obtain pressure value at any time, accurately and rapidly at daily health caring and medical care field.
At non-invasive blood pressure monitoring arts, oscillographic method is a kind of method generally used, and it is by cuff inflation pressurization interruption artery blood flow, then slowly reduces pressure, obtains systolic pressure and the diastolic pressure of human body according to the change of the pressure pulse spread out of in decompression arm.
At present, conventional electric sphygmomanometer many employings oscillography ratio juris carrys out Measure blood pressure.Main step is: first, the air pressure in cuff is charged to a fixing value; Then, exit with ladder or mode at the uniform velocity, in the process of venting, measure the change of pulse wave, then, obtain pressure value.But, owing to being be inflated to fixing value, for the difference of different users due to blood pressure, for hypotensive people, Measuring Time is long, and for the people of hyperpiesia, QI invigorating can be needed or measure unsuccessfully, cannot adjust according to individual variation, good Consumer's Experience cannot be obtained.In addition, in deflation course, be sometimes also difficult to obtain desirable waveform quantity.
Summary of the invention
The embodiment provides a kind of inflation/deflation method and system for blood pressure measurement, realize carrying out inflation according to individual variation and regulate.
For achieving the above object, following technical scheme is embodiments provided:
For an inflation/deflation method for blood pressure measurement, comprising:
Gas replenishment process: detect pulse wave to cuff inflation, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
Deflation course: to cuff deflation.
Preferably,
The step of deflation course is specially:
Carry out linear deflation;
When static pressure and the second static pressure close to time, be converted to ladder venting;
When static pressure and the first static pressure close to time, 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 that in gas replenishment process, pulse wave disappears static pressure corresponding to moment.
Preferably, the inflation rate between pulse wave occurs and pulse wave disappears is less than the inflation rate before pulse wave occurs.
Preferably, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave occurs and pulse wave disappears.
Preferably, after the inflation continuing certain atmospheric pressure value, before cuff deflation, also comprise: the most hyperbar value certain hour keeping cuff.
Preferably, the method detecting pulse wave in gas replenishment process is: the pressure signal in the cuff collected is carried out filtering and amplification, then, carries out analog digital conversion, calculates, the signal after conversion to obtain the amplitude of pulse wave.
In addition, present invention also offers a kind of air-charging and air-discharging system for blood pressure measurement, comprising:
Inflation unit, for being cuff inflation;
Pulse signal detecting unit, for detecting pulse wave;
Ventilating control unit, for when disappearing at pulse wave, controls the inflation that inflation unit continues certain atmospheric pressure value;
Deflating cells, for being 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 close to time, control deflating cells is converted to ladder and exits; When static pressure and the first static pressure close to time, control deflating cells and 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 that in gas replenishment process, pulse wave disappears static pressure corresponding to moment.
Preferably, ventilating control unit, also for controlling inflation rate, the inflation rate between pulse wave occurs and pulse wave disappears is less than the inflation rate before pulse wave occurs.
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 occurs and pulse wave disappears.
Preferably, described ventilating control unit, also keeps most 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 collected is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then by computing unit, thus obtain the amplitude of pulse wave.
The inflation/deflation method and system for blood pressure measurement that the embodiment of the present invention provides, the detection of pulse wave is carried out while giving cuff inflation, the blood pressure of different user is different, then the time of its pulse wave disappearance is different, according to the extinction time detecting pulse wave, control the time of inflating, thus realize carrying out inflation adjustment, to obtain good Consumer's Experience according to individual variation.
Further, according to the static pressure when pulse wave of record occurs during inflation and when pulse wave disappears, carrying out the conversion of linear deflation and ladder venting when exitting, while ensure that the speed of venting, taking 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 the flow chart of the inflation/deflation method for blood pressure measurement according to the embodiment of the present invention;
Fig. 3 is the time diagram of the inflation/deflation air pressure according to the embodiment of the present invention;
Fig. 4 is the structural representation of the air-charging and air-discharging system for blood pressure measurement according to the embodiment of the present invention.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail 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 to implement; every content not departing from technical solution of the present invention; any simple modification following examples done according to technical spirit of the present invention, equivalent variations and modification; all still belong in the scope of technical solution of the present invention protection, therefore the present invention is not by 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, along with the enhancing of pressure, pulse wave occurs, along with waveform slowly grow, 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, then can the peak value of waveform start 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, thus obtain corresponding pressure value.
The present invention, just according to the extinction time detecting pulse wave, controls the time of inflating, thus realizes carrying out inflation adjustment according to individual variation.The present invention proposes following concrete scheme:
For an inflation/deflation method for blood pressure measurement, comprising:
Detect pulse wave to cuff inflation, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
To cuff deflation.
In the present invention, the detection of pulse wave is carried out while giving cuff inflation, the blood pressure of different user is different, then the time of its pulse wave disappearance is different, according to the extinction time detecting pulse wave, control the time of inflating, thus realize carrying out inflation adjustment, to obtain good Consumer's Experience according to individual variation.
In order to improve the speed of venting, guarantee the accuracy measured, when inflation simultaneously, when pulse wave appearing and subsiding, record the static pressure in pulse wave appearing and subsiding corresponding moment, when venting, according to the venting of static pressure select linear or the ladder venting in this corresponding moment.Particularly, when pulse wave occurs, the static pressure recording this moment is the first static pressure; When pulse wave disappears, the static pressure recording this moment is the second static pressure.When exitting, advanced line linearity venting; Then, when static pressure and the second static pressure close to time, be converted to ladder venting; When static pressure and the first static pressure close to time, be converted to linear deflation.The method, while ensure that 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, be described in detail below with reference to specific embodiment and flow chart 2 pairs of embodiments of the invention.
In the present embodiment, as shown in Figure 2, first, cuff is inflated, carry out the detection of pulse wave simultaneously.
When detecting that pulse wave occurs, recording static pressure now, is the first static pressure a, and the speed of this section of time inflation is V
1.
Then, proceed inflation, when detecting that pulse wave disappears, recording 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 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, adopt slower speed in the stage that impulse waveform occurs, other stages adopt aeration speed faster, while making to guarantee inflation rate, can also ensure the accuracy measured.
Then, keep this maximum gas pressure value regular hour, as the time of 1S, live to make stable gas pressure.
Then, releasing phase is entered.
In the present embodiment, first, carry out linear deflation, namely exit speed at the uniform velocity, air pressure evenly declines.
In deflation course, detect static pressure, when static pressure is close to the second static pressure b, is converted to ladder venting, after namely keeping certain atmospheric pressure value certain hour, when dropping to another atmospheric pressure value and keep certain, so repeatedly carries out.Wherein, refer in the certain limit of static pressure b close to the second static pressure b, such as, when can be in the scope of (b ± b*10%), namely think close to the second static pressure, according to the difference of data collection cycle, this scope can carry out different settings.
Then, when static pressure is close to the second static pressure a, linear deflation is converted to.Wherein, refer in the certain limit of static pressure a close to the first static pressure a, such as, when can be in the scope of (a ± a*10%), namely think close to the first static pressure, according to the difference of data collection cycle, this scope can carry out different settings.
Certainly, in whole deflation course, need to gather pulse wave, in deflation course, the respective waveforms of diastolic pressure and systolic pressure can be collected, and then obtain pressure value.
In the present invention, pulse wave can be detected by suitable mode, in the present embodiment, the pressure signal in cuff detected by sensor, this signal is integrated signal, by filtering with after amplifying, carry out analog digital conversion, obtain digital signal, the digital signal after conversion is calculated, the amplitude of pulse wave can be obtained.
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 multiple different state.In aeration phase, first pulse wave do not detected; Then, after being pressurized to a point value, pulse wave is detected; After continuing to be pressurized to b point value, pulse wave disappears; Then pressurize 25mmhg; Then, keep the 1s time, enter plateau; Then, enter releasing phase, at releasing phase, 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 carrying out inflation according to individual variation and regulates, obtain good Consumer's Experience, and meanwhile, venting speed is fast and be beneficial to accurate measurement.
In addition, present invention also offers 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, for being cuff inflation;
Pulse signal detecting unit, for detecting pulse wave;
Ventilating control unit, for when disappearing at pulse wave, controls the inflation that inflation unit continues certain atmospheric pressure value;
Deflating cells, for being cuff deflation.
In the particular embodiment, inflation unit is air pump, and deflating cells is air bleeding valve.
In the particular 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 close to time, control deflating cells and be converted to ladder venting; When static pressure and the first static pressure close to time, control deflating cells and 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 that in gas replenishment process, pulse wave disappears static pressure corresponding to moment.
Wherein, pulse signal detecting unit comprises: filter circuit, amplifying circuit, analog to digital conversion circuit and computing unit, pressure signal in the cuff collected is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then calculated by computing unit, thus obtain the amplitude of pulse wave.
Wherein, ventilating control unit, also for controlling inflation rate, the inflation rate between pulse wave occurs and pulse wave disappears is less than the inflation rate before pulse wave occurs.And the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave occurs and pulse wave disappears.
Described ventilating control unit, also keeps most hyperbar value certain hour for controlling cuff.
The present invention discloses as above with preferred embodiment, but and is not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1., for an inflation/deflation method for blood pressure measurement, it is characterized in that, comprising:
Gas replenishment process: detect pulse wave to cuff inflation, when pulse wave disappears, continue the inflation of certain atmospheric pressure value;
Deflation course: to cuff deflation;
Wherein, the step of deflation course is specially:
Carry out linear deflation;
When static pressure and the second static pressure close to time, be converted to ladder venting;
When static pressure and the first static pressure close to time, 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 that in gas replenishment process, pulse wave disappears static pressure corresponding to moment.
2. inflation/deflation method according to claim 1, is characterized in that, the inflation rate between pulse wave occurs and pulse wave disappears is less than the inflation rate before pulse wave occurs.
3. inflation/deflation method according to claim 1, is characterized in that, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave occurs and pulse wave disappears.
4. inflation/deflation method according to claim 1, is characterized in that, after the inflation continuing certain atmospheric pressure value, before cuff deflation, also comprises: the most hyperbar value certain hour keeping cuff.
5. inflation/deflation method according to claim 1, is characterized in that, the method detecting pulse wave is: the pressure signal in the cuff collected is carried out filtering and amplification, then, carry out analog digital conversion, the signal after conversion is calculated, to obtain the amplitude of pulse wave.
6. for an air-charging and air-discharging system for blood pressure measurement, it is characterized in that, comprising:
Inflation unit, for being cuff inflation;
Pulse signal detecting unit, for detecting pulse wave;
Ventilating control unit, for when disappearing at pulse wave, controls the inflation that inflation unit continues certain atmospheric pressure value;
Deflating cells, for being cuff deflation;
Static pressure signal capturing unit, for obtaining static pressure; Venting control unit, for when static pressure and the second static pressure close to time, control deflating cells is converted to ladder and exits; When static pressure and the first static pressure close to time, control deflating cells and 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 that in gas replenishment process, pulse wave disappears static pressure corresponding to moment.
7. air-charging and air-discharging system according to claim 6, is characterized in that, ventilating control unit, and also for controlling inflation rate, the inflation rate between pulse wave occurs and pulse wave disappears is less than the inflation rate before pulse wave occurs.
8. air-charging and air-discharging system according to claim 6, is characterized in that, ventilating control unit, and also for controlling inflation rate, the inflation rate after pulse wave disappears is greater than the inflation rate between pulse wave occurs and pulse wave disappears.
9. air-charging and air-discharging system according to claim 6, is characterized in that, described ventilating control unit, also keeps most hyperbar value certain hour for controlling cuff.
10. air-charging and air-discharging system according to claim 6, 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 collected is successively through filter circuit, amplifying circuit and analog to digital conversion circuit, then calculated by computing unit, thus obtain the amplitude of pulse wave.
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| CN104720778B (en) * | 2015-04-09 | 2018-08-10 | 陶军 | Long-range blood pressure measuring system and its implementation |
| CN110013233A (en) * | 2019-04-04 | 2019-07-16 | 博脉有限公司 | Pulse condition analyser and its control method |
| CN112057065B (en) * | 2019-06-10 | 2022-09-02 | 华为技术有限公司 | Blood pressure measuring method and electronic equipment |
| CN111839487B (en) * | 2020-06-18 | 2022-12-23 | 郑昕 | Blood pressure measuring system without air bag |
| 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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| CN1394546A (en) * | 2002-08-08 | 2003-02-05 | 天津市先石光学技术有限公司 | Blood pressure measuring device and method |
| CN1989896A (en) * | 2005-11-30 | 2007-07-04 | 通用电气公司 | Method of controlling blood pressure cuff deflation |
| CN101612039A (en) * | 2009-07-28 | 2009-12-30 | 中国人民解放军第三军医大学野战外科研究所 | Self-adaption blood pressure detector |
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| US7468038B2 (en) * | 2005-12-20 | 2008-12-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Non-invasive electronic method and apparatus for measuring blood pressure |
| US8308647B2 (en) * | 2009-03-31 | 2012-11-13 | General Electric Company | System and method for a non-invasive blood pressure measurement |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394546A (en) * | 2002-08-08 | 2003-02-05 | 天津市先石光学技术有限公司 | Blood pressure measuring device and method |
| CN1989896A (en) * | 2005-11-30 | 2007-07-04 | 通用电气公司 | Method of controlling blood pressure cuff deflation |
| CN101612039A (en) * | 2009-07-28 | 2009-12-30 | 中国人民解放军第三军医大学野战外科研究所 | Self-adaption blood pressure detector |
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