CN101810474B - Device for realizing no-invasive measurement of blood pressure and pulse wave velocity - Google Patents
Device for realizing no-invasive measurement of blood pressure and pulse wave velocity Download PDFInfo
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- CN101810474B CN101810474B CN2010100009830A CN201010000983A CN101810474B CN 101810474 B CN101810474 B CN 101810474B CN 2010100009830 A CN2010100009830 A CN 2010100009830A CN 201010000983 A CN201010000983 A CN 201010000983A CN 101810474 B CN101810474 B CN 101810474B
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- 230000036772 blood pressure Effects 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 title abstract description 6
- 238000005273 aeration Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 12
- 238000013022 venting Methods 0.000 description 8
- 210000003414 extremity Anatomy 0.000 description 6
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 230000035487 diastolic blood pressure Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000035488 systolic blood pressure Effects 0.000 description 3
- 201000001320 Atherosclerosis Diseases 0.000 description 2
- 210000003423 ankle Anatomy 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 206010003210 Arteriosclerosis Diseases 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- 208000011775 arteriosclerosis disease Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a device for realizing the measurement of blood pressure and pulse wave velocity by one time of air inflation. The device is characterized by comprising an air pump, a first switching air valve, a second switching air valve, a third switching air valve, a first air leakage nozzle, an air storage bag, a special cuff and a first sensor, wherein the air pump is used for generating an air source; the first switching air valve, the second switching air valve and the third switching air valve are used for controlling the on-off state of an air passage; the first air leakage nozzle is used for controlling an inflation/deflation rate; the air storage bag is used for storing air; the special cuff is used for acquiring a pulse wave of a patient body; the first sensor is usedfor acquiring real-time pressure intensity of the air in the cuff; the air pump, the air storage bag, the first switching air valve, the second switching air valve and the third switching air valve are connected with each other through a five-way air passage; the cuff, the first air leakage nozzle, the third switching air valve and the first sensor are connected with each other through a four-wayair passage; and the second switching air valve is connected with the first air leakage nozzle.
Description
[technical field]
The present invention relates to medical instruments field, relate in particular to a kind of realization single aeration and measure blood pressure and pulse wave velocity device.
[background technology]
The ultimate principle of atherosclerosis detector is: by oscillographic method non-invasive measurement human body left and right sides upper arm, left and right sides ankle, about finger, toe pressure value and by gathering the pulse waveform data, calculate left and right sides limb arm index (ABI, Ankle Brachial Index), toe arm index (TBI, Toe Brachial Index) and pulse wave conduction speed (PWV, Pulse Wave Velocity) etc. parameter is assessed human body arterial health situation, when wherein the ABI value was less than normal value 0.9, it was atherosis to illustrate that blood vessel exists; PWV there is calcification in time explanation blood vessel greater than normal value 1.4m/s may.Atherosclerosis detector is the novel human body blood vessel scleratheroma that gets up of development in recent years and the health check-up examination equipment of angiosteosis, has very high clinical value.The universal method that adopts electronic method to measure blood pressure mainly is oscillographic method or is succusion at present, its basic procedure is earlier cuff to be inflated, pressure is enough blocked extremity vascular fully in cuff, slowly exit according to the speed of 3～5mmHg/s then, the pulse wave amplitude is ascending arrive again little, rule according to amplitude of variation calculates systolic pressure, mean pressure and diastolic pressure, then venting fast.The method of measuring pulse wave conduction speed is that cuff is inflated to certain pressure intensity, keep pressure constant, gather the pulse wave of a period of time, calculate according to the pulse waveform delay time and the length of vessel (by the height match) of extremity, then fast with cuff deflation.The arteriosclerosis checkout equipment is mainly realized this two kinds of functions, need inflate twice cuff, fast venting twice, the time that each inflation adds venting is more than two minutes, and integral body nearly gets off five-minute period like this, because twice pair of cuff inflation, be not very healthy old people to extremity vascular particularly, have bigger detection risk, detection speed is also slower in addition, make the patient feel not to be very comfortable, restricted popularizing of this equipment.
[summary of the invention]
The objective of the invention is provides a kind of single aeration can measure the apparatus and method of blood pressure and pulse ripple in order to overcome the deficiencies in the prior art.Described device comprises: the air pump that is used for producing source of the gas, be used for controlling first, second, third switch air valve of gas path on-off, be used for controlling the first gas leakage mouth that charges and discharge gas speed, be used for storing the gas-storing bag of gas, be used for gathering the Special sleeve belt of patient body pulse wave, be used for gathering the first sensor of the real-time pressure of gas in the cuff, air pump, gas-storing bag, the first switch air valve, second switch air valve and the 3rd switch air valve are connected by the five-way gas circuit; Cuff, the first gas leakage mouth, the 3rd switch air valve, first sensor four-way gas circuit connect; The second switch air valve is connected with the first gas leakage mouth.
In another preferred embodiment, described device also comprises second pick off that is used for monitoring gas pressure intensity in the cuff.
In another preferred embodiment, described device also comprises the 3rd pick off that is used for monitoring gas pressure intensity in the gas-storing bag.
In another preferred embodiment, described device also comprises than the first gas leakage mouth having second gas leakage mouth of lower leak rate and the 4th switch air valve of the control second gas leakage mouth break-make, and the 4th switch air valve and second gas leakage is outspoken to be connect and be connected to the four-way gas circuit after linking to each other.
In another preferred embodiment, described device also comprises the 5th switch air valve that is used to control the cuff gas path on-off.
[description of drawings]
Fig. 1 measures blood pressure and one-shot measurement pulse wave schematic representation of apparatus for a kind of single aeration of the present invention.
[specific embodiment]
The present invention illustrates one group of apparatus structure of obtaining blood pressure and pulse wave-wave shape by following Fig. 1.In Fig. 1, air pump, gas-storing bag, the first switch air valve, second switch air valve and the 3rd switch air valve are connected by the five-way gas circuit, and cuff, the first gas leakage mouth, the 3rd switch air valve, first sensor four-way gas circuit connect; The second switch air valve is connected with the first gas leakage mouth.Air pump is used to provide source of the gas, the first switch air valve is used for controlling the maintenance of gas in the five-way gas circuit or venting fast, gas-storing bag is used for storing source of the gas, gas in cuff when inflation second switch Air Valve Control gas-storing bag whether toward cuff by first gas leakage speed inflation that is slow of speech, the interior gas of second switch Air Valve Control cuff was by the first gas leakage mouth venting when cuff was exitted at a slow speed, air pump or gas-storing bag were to the cuff fast aeration when the 3rd switch Air Valve Control cuff was inflated during the cuff inflation, and the interior gas of the 3rd switch Air Valve Control cuff is exitted fast during cuff deflation.Cuff is used for being rolled in the certain air pressure of maintenance on the measured body, the fluctuation characteristic of perception measured body, and the first gas leakage mouth is controlled the speed that charges and discharge gas in the cuff, and first sensor is used for monitoring in real time gas pressure intensity situation of change in the cuff.
Its normal workflow is as follows:
The first step, by air-pump inflating, this moment, the first switch air valve and second switch air valve were in closed condition (air tight), the 3rd switch air valve is in open mode, air-flow can accessiblely pass through, and this moment, air pump was inflated to cuff and gas-storing bag, mainly was to be used for reducing total inflationtime, in cuff, charge in advance a part of gas, control the length of fast aeration time by the pressure of control first sensor perception;
In second step, when the pressure in cuff and the gas-storing bag reached P1, the 3rd switch air valve was closed, inflation in the only past gas-storing bag of air pump this moment, and pressure remains unchanged in the cuff;
The 3rd step, when pressure reaches P2 in the gas-storing bag, air pump stops inflation, open the second switch air valve this moment and since gas-storing bag intrinsic pressure powerful in cuff pressure, so gas is inflated to cuff by the second switch electromagnetic valve and the first gas leakage mouth, the leak rate of this gas leakage mouth can be set to 3～5mmHg/s (100ml gas, during 200mmHg), pressure slowly rises with the speed of 3～5mmHg/s in the cuff, and pressure reaches P3 in the sleeve bag.In this process, note pressure change curve in the cuff by first sensor.Therefrom can extract pulse waveform amplitude of variation rule and static pressure size, utilize this rule can measure the systolic pressure Ps1 of tested limbs, mean pressure Pm1 and diastolic pressure Pd1 and heart rate (HR, Heart Rate).
The 4th step, open the first switch air valve, the rapid emptying of gas in the gas-storing bag, and the intrinsic pressure powerful pressure in gas-storing bag of cuff this moment, gas in the cuff flows out by the first gas leakage mouth, second switch air valve and the first switch air valve speed with 3～5mmHg/s, in this process, note the interior pressure change curve of sleeve bag by first sensor.When the cuff internal gas pressure reaches P4, close the second switch air valve about about 10 seconds, this signal was used for being PWV and analyzed by the pulse wave signal of second pick off continuous acquisition a period of time this moment.And then open the second switch air valve, slowly exit.In this process, by first sensor write down not only a complete pulse wave amplitude from small to large but also to little, static pressure from big gradually to little process, can draw systolic pressure Ps2, mean pressure Pm2 and the diastolic pressure Pd2 of tested limbs again according to this waveform, also obtain the pulse wave signal under certain pressure intensity simultaneously, can obtain PWV by this signal and height data.In the 5th step, when all parameters that need measure had reached, the cuff internal gas pressure had reached P5, opened the 3rd switch air valve, and remaining gas flows out once complete measuring process end of operation fast in the sleeve bag.
Here P1 is the atmospheric pressure value that does not influence blood pressure measurement that sets in advance, P2 is the maximum pressure value that allows in the gas-storing bag, guarantee that gas-storing bag has enough sources of the gas to guarantee that cuff can be to the maximum that it allowed when cuff is inflated, P3 is hyperbar value or the needed highest pressure value of one-shot measurement blood pressure that allows in the cuff, P4 inflates needed atmospheric pressure value to cuff when measuring pulse wave velocity, and P5 is for having obtained the needed data of blood pressure measurement fully or having exitted that this measures the atmospheric pressure value that institute will discharge the interior gas of cuff fast.
In another preferred embodiment; second pick off is linked in the four-way gas circuit that is communicated with cuff; be used for monitoring the situation of repairing bag internal gas pressure; pressure is no more than a pressure values in the protection cuff; prevent that the cuff internal gas pressure that is caused by operate miss or mechanical disorder is excessive or it is long to hold time, play protection testee's effect.
In another preferred embodiment, the 3rd pick off is inserted the five-way gas circuit that air pump is communicated with, the inflation highest pressure that monitors gas-storing bag maintains certain value, make to be unlikely to excessively to inflate and damage device or cause potential safety hazard that perhaps under-inflation makes gas-storing bag not have enough sources of the gas to finish to measuring a blood pressure parameter and need inflate required gas flow to cuff.
In another preferred embodiment, with the 4th switch air valve with have the second gas leakage mouth series connection back that has a lower leak rate than the first gas leakage mouth and insert the four-way that the cuff path is connected, can be controlled at and select to open the 4th switch air valve in the process that cuff exits at a slow speed and replace opening the second switch air valve by the second gas leakage mouth venting and select the first gas leakage mouth venting, to obtain lower venting speed, obtain more high-precision blood pressure measurement.
In another preferred embodiment, the 5th switch air valve is connected in series in the middle of cuff and the four-way gas circuit, can when connecing cuff, not finish the selftest of duties such as the calibration of instrument self atmospheric pressure value, leak rate test and air pump gas-storing bag, make things convenient for plant maintenance by closing the 5th switch air valve.
Claims (5)
1. realize that single aeration measures the device of blood pressure and pulse wave velocity for one kind, it is characterized in that, comprise: the air pump that is used for producing source of the gas, be used for controlling first, second, third switch air valve of gas path on-off, be used for controlling the first gas leakage mouth that charges and discharge gas speed, be used for storing the gas-storing bag of gas, be used for gathering the Special sleeve belt of patient body pulse wave, be used for gathering the first sensor of the real-time pressure of gas in the cuff, air pump, gas-storing bag, the first switch air valve, second switch air valve and the 3rd switch air valve are connected by the five-way gas circuit; Cuff, the first gas leakage mouth, the 3rd switch air valve, first sensor connect by the four-way gas circuit; The second switch air valve is connected with the first gas leakage mouth.
2. a kind of single aeration that realizes as claimed in claim 1 is measured the device of blood pressure and pulse wave velocity, it is characterized in that, also comprises second pick off that is used for monitoring gas pressure intensity in the cuff.
3. a kind of single aeration that realizes as claimed in claim 1 is measured the device of blood pressure and pulse wave velocity, it is characterized in that, also comprises the 3rd pick off that is used for monitoring gas pressure intensity in the gas-storing bag.
4. a kind of single aeration that realizes as claimed in claim 1 is measured the device of blood pressure and pulse wave velocity, it is characterized in that, also comprise than the first gas leakage mouth having second gas leakage mouth of lower leak rate and the 4th switch air valve of the control second gas leakage mouth break-make, the 4th switch air valve and second gas leakage is outspoken to be connect and is connected to the four-way gas circuit after linking to each other.
5. a kind of single aeration that realizes as claimed in claim 1 is measured the device of blood pressure and pulse wave velocity, it is characterized in that, also comprises the 5th switch air valve that is used to control the cuff gas path on-off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100009830A CN101810474B (en) | 2010-01-22 | 2010-01-22 | Device for realizing no-invasive measurement of blood pressure and pulse wave velocity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100009830A CN101810474B (en) | 2010-01-22 | 2010-01-22 | Device for realizing no-invasive measurement of blood pressure and pulse wave velocity |
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| CN101810474A CN101810474A (en) | 2010-08-25 |
| CN101810474B true CN101810474B (en) | 2011-09-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102197996B (en) * | 2010-11-23 | 2013-04-17 | 中国科学院合肥物质科学研究院 | Method for obtaining pulse wave velocity of aorta by using pulse wave of radial artery |
| CN103083003A (en) * | 2013-01-30 | 2013-05-08 | 董云 | Improved electronic blood pressure measuring method |
| CN103284703B (en) * | 2013-06-18 | 2015-05-13 | 中国科学院合肥物质科学研究院 | Aortic pulse wave transfer time measuring method based on upper extremity artery information |
| CN111000537B (en) * | 2019-12-24 | 2022-05-27 | 中国人民解放军陆军军医大学第一附属医院 | Method for correcting influence of age, sex and blood pressure on pulse wave propagation speed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316005A (en) * | 1990-05-17 | 1994-05-31 | Mitsuei Tomita | Apparatus for detecting and displaying blood ciculatory information |
| JP2877951B2 (en) * | 1990-06-19 | 1999-04-05 | 光衛 冨田 | Apparatus for measuring blood flow velocity and blood flow in the aorta |
| CN1513417A (en) * | 2003-07-07 | 2004-07-21 | 深圳迈瑞生物医疗电子股份有限公司 | Electronic device for measuring blood-pressure |
| CN101103908A (en) * | 2006-07-11 | 2008-01-16 | 深圳迈瑞生物医疗电子股份有限公司 | Woundless blood pressure measuring device and its safety protecting method |
-
2010
- 2010-01-22 CN CN2010100009830A patent/CN101810474B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316005A (en) * | 1990-05-17 | 1994-05-31 | Mitsuei Tomita | Apparatus for detecting and displaying blood ciculatory information |
| JP2877951B2 (en) * | 1990-06-19 | 1999-04-05 | 光衛 冨田 | Apparatus for measuring blood flow velocity and blood flow in the aorta |
| CN1513417A (en) * | 2003-07-07 | 2004-07-21 | 深圳迈瑞生物医疗电子股份有限公司 | Electronic device for measuring blood-pressure |
| CN101103908A (en) * | 2006-07-11 | 2008-01-16 | 深圳迈瑞生物医疗电子股份有限公司 | Woundless blood pressure measuring device and its safety protecting method |
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