CN103932691A - Electronic sphygmomanometer suitable for region at any altitude - Google Patents
Electronic sphygmomanometer suitable for region at any altitude Download PDFInfo
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- CN103932691A CN103932691A CN201410184318.XA CN201410184318A CN103932691A CN 103932691 A CN103932691 A CN 103932691A CN 201410184318 A CN201410184318 A CN 201410184318A CN 103932691 A CN103932691 A CN 103932691A
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Abstract
The invention discloses an electronic sphygmomanometer suitable for a region at any altitude. The electronic sphygmomanometer is characterized in that the environment atmosphere pressure of the altitude region where the electronic sphygmomanometer is located is collected through an absolute pressure sensor, a pressure measuring result of a gauge pressure sensor is calibrated through the measuring result, measurement shifting caused by the fact that the environment atmosphere pressure is not equal to the standard atmosphere pressure is eliminated, the blood pressure of a measured object at the altitude region is accurately calculated, and the electronic sphygmomanometer is not limited by the altitude of the region where the electronic sphygmomanometer is used. Meanwhile, the electronic sphygmomanometer further has the function of measuring the altitude, the altitude of the position where the measured object is located can be displayed on a displayer in real time, the interval range of the blood pressure of the measured object at the standard atmosphere pressure can be simulated, and hypertension disease misdiagnosing caused by plateau hypertension can be avoided.
Description
Technical field
The present invention relates to a kind of sphygomanometer, relate in particular to a kind of electric sphygmomanometer that is applicable to any Altitude Regions.
Background technology
The assay method of existing sphygomanometer to blood pressure, all can be summarized as the method for carrying out blood pressure determination by pulse wave.The method is normally first worn over cuff in left upper arm, then, automatically to cuff inflation, after cuff internal pressure reaches certain value (being generally 180～230mmHg), starts venting.When cuff internal gas pressure is reduced to a certain degree, blood flow just can pass through blood vessel, and has certain wave of oscillation to produce, and the wave of oscillation propagates into the pressure transducer in machine by trachea, and pressure transducer can detect pressure and the fluctuation in surveyed cuff in real time.Venting gradually, the wave of oscillation is increasing.Exit again, because cuff fluffs with contacting of arm, so the detected pressure of pressure transducer and fluctuation more and more less.Like this, the pulsation producing according to volume-variation based on tremulous pulse, just can detect the waveform of pulse wave.Finally utilize corresponding pulse waveform characteristic quantity, just can calculate the physiological parameters such as systolic pressure, diastolic pressure, mean pressure and pulse frequency.
The advantage of above-mentioned measuring method is the labor intensity that has alleviated doctor, and comparison of coherence is good, does not have the reading difference producing between different doctors.But the method also exists obvious shortcoming, be subject to external interference, owing to adopting gauge pressure transducer to measure real-time pressure numerical value, when external atmospheric pressure is not equal to normal atmospheric pressure, the force value of gauge pressure transducer output can produce skew, finally causes the inaccurate of measurement result.This inaccurate because following reason causes in non-standard atmospheric pressure occasion measurement result: after collecting cuff dynamic pressure signal by said determination method, conventionally process in the following ways to obtain the measurement result of blood pressure, be that cuff dynamic pressure signal is divided into two-way, low pass processing is carried out on one tunnel, obtains cuff static pressure signal; Logical processing is with on another road, obtains pulse wave fluctuation signal, and gained cuff static pressure signal should be strictly corresponding in sequential with pulse wave signal; On pulse wave fluctuation signal, find the characteristic point of systolic pressure, diastolic pressure, static pressure corresponding to characteristic point position is last systolic pressure, diastolic pressure numerical value.And the Output pressure that gauge pressure transducer is measured is with respect to environment atmospheric pressure, it is gauge pressure transducer output=absolute pressure-environment atmospheric pressure, when measurement environment atmospheric pressure is not equal to normal atmospheric pressure, gauge pressure transducer output can produce skew, thereby the cuff static pressure signal through low-pass filtering also can produce skew, this changes static pressure signal corresponding to the characteristic point of the systolic pressure that causes calculating, diastolic pressure, thereby causes the inaccurate of measurement result.
In addition, take highlands as example, when people just support highlands, can produce certain high originality hyper tensive reactions, concrete manifestation is as follows: in plains region, blood pressure is normal, after entering plateau, just there is blood pressure to increase, diastolic pressure is at 12.0 kPas (90mmHg), systolic pressure 18.7 kPas (140mmHg) or more than, crowd is as Returning To Plain for this class, blood pressure can recover normally, and " hypertension " can recover without treatment.The reason that produces such phenomenon is, partial pressure of oxygen reduction in the atmospheric pressure of highlands, and alveolar gas and arterial partial pressure of oxygen also reduce accordingly, and between capillary blood and cell mitochondrial, partial pressure of oxygen gradient difference is dwindled, thereby causes anoxia.If ascended a height gradually, there is one to temper the process adapting to, in low oxygen partial pressure environment, can there are a series of compensatory adaptations in body, as ventilation, strengthens, and the diffusing capacity of alveolar membrane improves; Circulatory function is strengthened, and the ability of delivery of oxygen increases; Sympathetic--adrenal system is movable to be strengthened, and the bioactive substance catecholamines that can impel blood pressure to increase in blood increases, and cardiac output increases, around little vasoconstriction, cause elevation of the blood pressure, so just strengthened the perfusion of blood to tissue, have certain adaptation.By these compensations, just can be so that tissue can utilize oxygen to reach or approach normal level.And return to plains region, and compensation disappears, and pressure value can progressively return to normal level.As the above analysis, when highlands, if being used in local measured pressure value and World Health Organization (WHO) (WHO) and world hypertension alliance (WHL) contrasts about the numerical value of hypertensive diagnosis and grade scale, judge whether measurand suffers from hypertension, be easy to be subject to the interference of high altitude hypertension phenomenon, thereby occur judging disconnected or mistaken diagnosis by accident, derive a wrong conclusion.
Summary of the invention
The object of the invention is to the electric sphygmomanometer that is applicable to any Altitude Regions by a kind of, solve the problem that above background technology is partly mentioned.
For reaching this object, the present invention by the following technical solutions:
An electric sphygmomanometer that is applicable to any Altitude Regions, it comprises: cuff, keyboard, air pump, gauge pressure transducer, absolute pressure sensor, microprocessor, display and gas bleeder valve;
Described cuff is connected with air pump by airway, is fixed on the upper arm of measurand;
Described keyboard is connected with microprocessor, for inputting instruction to microprocessor, triggers and measures action;
Described air pump is connected with microprocessor, under controlling at microprocessor, gives cuff inflating pressure;
Described gauge pressure transducer is connected with microprocessor, and for gathering cuff dynamic pressure, and to be converted into the signal of telecommunication be cuff dynamic pressure signal, exports to microprocessor;
Described absolute pressure sensor is connected with microprocessor, and for gathering the environment atmospheric pressure of measurand Altitude Regions of living in, and to be converted into the signal of telecommunication be ambient atmosphere pressure force signal, exports to microprocessor;
Described microprocessor is connected with display, for utilizing described ambient atmosphere pressure force signal to calibrate described dynamic pressure signal, extracts pulse waveform characteristic quantity, calculates measurand at the blood pressure of Altitude Regions of living in, exports to display and shows;
Described gas bleeder valve is connected with cuff, for completing after blood pressure measurement, bleeds off the pressure in cuff.
Especially, described microprocessor specifically for: described cuff dynamic pressure signal is separated into sequential strict corresponding pulse wave fluctuation signal and cuff static pressure signal, and utilize described ambient atmosphere pressure force signal by described cuff static pressure signal calibration for respect to the measured value under normal atmospheric pressure, extract pulse waveform characteristic quantity, calculate measurand at the blood pressure of Altitude Regions of living in, export to display and show.
Especially, described microprocessor is also for according to the height above sea level of described environment atmospheric pressure calculated signals measurand Altitude Regions of living in.
Especially, described microprocessor is further used for blood pressure and the height above sea level in Altitude Regions of living according to the measurand calculating, and simulating measurand is the blood pressure that standard atmosphere is depressed in plains region.
The electric sphygmomanometer that is applicable to any Altitude Regions provided by the invention utilizes absolute pressure sensor to gather the environment atmospheric pressure of Altitude Regions, place, use this measurement result to calibrate gauge pressure transducer pressure measurements, removed and be not equal to the measurement skew that normal atmospheric pressure brings because of environment atmospheric pressure, accurately calculate measurand at the blood pressure of Altitude Regions of living in, break away from the restriction that electric sphygmomanometer is used region height above sea level; Simultaneously, the present invention also possesses the function that height above sea level is measured, can on display, show the height above sea level of measurand position in real time, and can simulate measurand under normal atmosphere blood pressure should interval range, avoid the hypertension mistaken diagnosis bringing because of high altitude hypertension phenomenon.
Accompanying drawing explanation
The electric sphygmomanometer structured flowchart that is applicable to any Altitude Regions that Fig. 1 provides for the embodiment of the present invention;
The cuff structural representation that Fig. 2 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not full content.
Please refer to shown in Fig. 1 the electric sphygmomanometer structured flowchart that is applicable to any Altitude Regions that Fig. 1 provides for the embodiment of the present invention.
The electric sphygmomanometer that is applicable to any Altitude Regions in the present embodiment specifically comprises: cuff 101, keyboard 102, air pump 103, gauge pressure transducer 104, absolute pressure sensor 105, microprocessor 106, display 107 and gas bleeder valve 108.
Described cuff 101 is connected with air pump 103 by airway 109, is fixed on the upper arm of measurand.As shown in Figure 2, cuff 101 structural representations that Fig. 2 provides for the embodiment of the present invention.Before starting measurement, need first cuff 101 is correctly fixed on the upper arm of measurand.
Described keyboard 102 is connected with microprocessor 106, for inputting instruction to microprocessor 106, triggers and measures action.Keyboard 102 is provided with the button of sending function instruction, presses and starts after button, will trigger microprocessor 106 and control air pump 103 to cuff 101 inflating pressures.
Described air pump 103 is connected with microprocessor 106, under controlling at microprocessor 106, gives cuff 101 inflating pressures.
Described gauge pressure transducer 104 is connected with microprocessor 106, and for gathering cuff dynamic pressure, and to be converted into the signal of telecommunication be cuff dynamic pressure signal, exports to microprocessor 106.
Microprocessor 106 None-identified analogue signals, so gauge pressure transducer 104 need to be gathered cuff dynamic pressure, to be converted to the signal of telecommunication be to export to microprocessor 106 after cuff dynamic pressure signal again.
Described absolute pressure sensor 105 is connected with microprocessor 106, and for gathering the environment atmospheric pressure of measurand Altitude Regions of living in, and to be converted into the signal of telecommunication be ambient atmosphere pressure force signal, exports to microprocessor 106.
Described microprocessor 106 is connected with display 107, be used for utilizing described ambient atmosphere pressure force signal to calibrate described dynamic pressure signal, extract pulse waveform characteristic quantity, calculate measurand at the blood pressure of Altitude Regions of living in, export to display 107 and show.Described gas bleeder valve 108 is connected with cuff 101, for completing after blood pressure measurement, bleeds off the pressure in cuff 101.
Microprocessor 106 is after receiving the cuff dynamic pressure signal of gauge pressure transducer 104 outputs, be separated into sequential strict corresponding pulse wave fluctuation signal and cuff static pressure signal, and the ambient atmosphere pressure force signal that utilizes absolute pressure sensor 105 output by described cuff static pressure signal calibration for respect to the measured value under normal atmospheric pressure, extract pulse waveform characteristic quantity, calculate measurand at the blood pressure of Altitude Regions of living in, export to display 107 and show.Wherein, utilize the general principles of absolute pressure sensor 105 calibration chart pressure sensor 104 outputs as follows: for gauge pressure transducer 104, its output meets: gauge pressure transducer output=absolute pressure-environment atmospheric pressure, so, gauge pressure transducer 104 can be because environment atmospheric pressure changes, cause, for same absolute pressure, in different height above sea levels, exporting different measured values.And for absolute pressure sensor 105, its output meets: absolute pressure sensor output=absolute pressure-absolute zero-pressure, therefore, in the present invention, adopt absolute pressure sensor 105 to gather the environment atmospheric pressure of measurand Altitude Regions of living in, to be converted into the signal of telecommunication be ambient atmosphere pressure force signal and export to microprocessor 106 and process, microprocessor 106 receives after this signal, the pressure value of gauge pressure transducer 104 outputs can be calibrated to respect to the measurement numerical value under normal atmospheric pressure: pressure value=gauge pressure transducer output+absolute pressure sensor output-normal atmospheric pressure after proofreading and correct.Pressure data after overcorrect, removed and be not equal to the measurement skew that normal atmospheric pressure brings because of environment atmospheric pressure, according to sequential strict corresponding pulse wave fluctuation signal and cuff static pressure signal, just can show that the corresponding blood pressure of measurand is the numerical value of systolic pressure, diastolic pressure like this.
In addition, according to relevant medical statistical law, when ordinary people just enters highlands, human body produces compensation response, and hypertension meeting is obvious, the general every rising 1000m of height above sea level, human body systolic pressure rising 10mmHg to 20mmHg, diastolic pressure rising 5mmHg to 10mmHg.Therefore, the environment atmospheric pressure number gathering according to absolute pressure sensor 105, microprocessor 106 can calculate the height above sea level of measurand Altitude Regions of living in, simultaneously, according to the rule of height above sea level and blood pressure, just can simulate measurand is the blood pressure that standard atmosphere is depressed in plains region, avoids the hypertension mistaken diagnosis bringing because of high altitude hypertension phenomenon.
It should be noted that, the present invention uses the dual pressure sensor of gauge pressure transducer 104, absolute pressure sensor 105 to carry out the collection of dynamic pressure in environment atmospheric pressure and cuff, but be not limited to this, also can use single absolute pressure sensor 105 to complete the collection to dynamic pressure signal in environment atmospheric pressure and cuff.
Technical scheme of the present invention utilizes absolute pressure sensor to gather the environment atmospheric pressure of Altitude Regions, place, use this measurement result to calibrate gauge pressure transducer pressure measurements, removed and be not equal to the measurement skew that normal atmospheric pressure brings because of environment atmospheric pressure, accurately calculate measurand at the blood pressure of Altitude Regions of living in, break away from the restriction that electric sphygmomanometer is used region height above sea level; Simultaneously, the present invention also possesses the function that height above sea level is measured, can on display, show the height above sea level of measurand position in real time, and can simulate measurand under normal atmosphere blood pressure should interval range, avoid the hypertension mistaken diagnosis bringing because of high altitude hypertension phenomenon.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious variations, readjust and substitute and can not depart from protection scope of the present invention.Therefore, although the present invention is described in further detail by above embodiment, the present invention is not limited only to above embodiment, in the situation that not departing from the present invention's design, can also comprise more other equivalent embodiment, and scope of the present invention is determined by appended claim scope.
Claims (4)
1. an electric sphygmomanometer that is applicable to any Altitude Regions, is characterized in that, comprising: cuff, keyboard, air pump, gauge pressure transducer, absolute pressure sensor, microprocessor, display and gas bleeder valve;
Described cuff is connected with air pump by airway, is fixed on the upper arm of measurand;
Described keyboard is connected with microprocessor, for inputting instruction to microprocessor, triggers and measures action;
Described air pump is connected with microprocessor, under controlling at microprocessor, gives cuff inflating pressure;
Described gauge pressure transducer is connected with microprocessor, and for gathering cuff dynamic pressure, and to be converted into the signal of telecommunication be cuff dynamic pressure signal, exports to microprocessor;
Described absolute pressure sensor is connected with microprocessor, and for gathering the environment atmospheric pressure of measurand Altitude Regions of living in, and to be converted into the signal of telecommunication be ambient atmosphere pressure force signal, exports to microprocessor;
Described microprocessor is connected with display, for utilizing described ambient atmosphere pressure force signal to calibrate described dynamic pressure signal, extracts pulse waveform characteristic quantity, calculates measurand at the blood pressure of Altitude Regions of living in, exports to display and shows;
Described gas bleeder valve is connected with cuff, for completing after blood pressure measurement, bleeds off the pressure in cuff.
2. the electric sphygmomanometer that is applicable to any Altitude Regions according to claim 1, is characterized in that, described microprocessor specifically for:
Described cuff dynamic pressure signal is separated into sequential strict corresponding pulse wave fluctuation signal and cuff static pressure signal, and utilize described ambient atmosphere pressure force signal by described cuff static pressure signal calibration for respect to the measured value under normal atmospheric pressure, extract pulse waveform characteristic quantity, calculate measurand at the blood pressure of Altitude Regions of living in, export to display and show.
3. according to the electric sphygmomanometer that is applicable to any Altitude Regions one of claim 1 or 2 Suo Shu, it is characterized in that, described microprocessor also for:
According to the height above sea level of described environment atmospheric pressure calculated signals measurand Altitude Regions of living in.
4. the electric sphygmomanometer that is applicable to any Altitude Regions according to claim 3, is characterized in that, described microprocessor is further used for:
Blood pressure and height above sea level according to the measurand calculating in Altitude Regions of living in, simulating measurand is the blood pressure that standard atmosphere is depressed in plains region.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410184318.XA CN103932691B (en) | 2014-05-04 | 2014-05-04 | A kind of electric sphygmomanometer being applicable to any Altitude Regions |
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| CN201410184318.XA CN103932691B (en) | 2014-05-04 | 2014-05-04 | A kind of electric sphygmomanometer being applicable to any Altitude Regions |
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| CN103932691B CN103932691B (en) | 2016-01-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106482744A (en) * | 2015-08-25 | 2017-03-08 | 斯沃奇集团研究和开发有限公司 | Apparatus and method for calibrating height above sea level measuring apparatus |
| CN106880347A (en) * | 2017-03-08 | 2017-06-23 | 深圳瑞光康泰科技有限公司 | Multi-parameter blood pressure measuring device |
| CN107456221A (en) * | 2017-09-01 | 2017-12-12 | 上海斐讯数据通信技术有限公司 | Method, sphygmomanometer and the system of blood pressure can be accurately measured |
| WO2023005847A1 (en) * | 2021-07-30 | 2023-02-02 | 华为技术有限公司 | Blood pressure measuring apparatus |
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| WO1999055223A1 (en) * | 1998-04-30 | 1999-11-04 | Medtronic, Inc. | Implantable medical device for sensing absolute blood pressure and barometric pressure |
| DE102005050422A1 (en) * | 2005-10-19 | 2007-04-26 | Robert Bosch Gmbh | Non invasive blood pressure sensor has sleeve applying external pressure with adjacent absolute and relative pressure sensors |
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| CN203280377U (en) * | 2013-05-22 | 2013-11-13 | 广州德米医用设备有限公司 | Medical electrical sphygmomanometer |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1999055223A1 (en) * | 1998-04-30 | 1999-11-04 | Medtronic, Inc. | Implantable medical device for sensing absolute blood pressure and barometric pressure |
| DE102005050422A1 (en) * | 2005-10-19 | 2007-04-26 | Robert Bosch Gmbh | Non invasive blood pressure sensor has sleeve applying external pressure with adjacent absolute and relative pressure sensors |
| CN101216334A (en) * | 2008-01-02 | 2008-07-09 | 湖南九天科技有限公司 | Multifunctional atmospheric pressure altitude instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106482744A (en) * | 2015-08-25 | 2017-03-08 | 斯沃奇集团研究和开发有限公司 | Apparatus and method for calibrating height above sea level measuring apparatus |
| CN106482744B (en) * | 2015-08-25 | 2019-05-14 | 斯沃奇集团研究和开发有限公司 | Device and method for calibrating height above sea level measuring device |
| CN106880347A (en) * | 2017-03-08 | 2017-06-23 | 深圳瑞光康泰科技有限公司 | Multi-parameter blood pressure measuring device |
| CN107456221A (en) * | 2017-09-01 | 2017-12-12 | 上海斐讯数据通信技术有限公司 | Method, sphygmomanometer and the system of blood pressure can be accurately measured |
| WO2023005847A1 (en) * | 2021-07-30 | 2023-02-02 | 华为技术有限公司 | Blood pressure measuring apparatus |
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