CN105167764A - Blood pressure measuring device and method - Google Patents
Blood pressure measuring device and method Download PDFInfo
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- CN105167764A CN105167764A CN201510645364.XA CN201510645364A CN105167764A CN 105167764 A CN105167764 A CN 105167764A CN 201510645364 A CN201510645364 A CN 201510645364A CN 105167764 A CN105167764 A CN 105167764A
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- pressure
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- electronic skin
- air bag
- blood pressure
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Abstract
The invention provides a blood pressure measuring device and method. The blood pressure measuring device comprises a sphygmomanometer cuff and a sphygmomanometer processing device connected with the sphygmomanometer cuff. The sphygmomanometer cuff comprises an air bag, an air pipe for inflating and deflating the air bag and an electronic skin. The sphygmomanometer processing device comprises an air pump, an air valve, a pressure sensor and a microprocessor, wherein the air pump, the air valve and the pressure sensor are connected with the air pipe, and the microprocessor is connected with the air pump, the air valve and the pressure sensor. The electronic skin is connected with the microprocessor, so as to send to the microprocessor detected and obtained pulse beating signals of the brachial artery below the air bag and at one end far away from the heart, so that the microprocessor obtains corresponding blood pressure information according to the pulse beating signals and voltage signals obtained from the pressure sensor.
Description
Technical field
The present invention relates to field of medical device, particularly relate to a kind of blood pressure measurement device and method.
Background technology
As a kind of instrument of indirect inspection human blood-pressure, mercurial sphygmomanometer measures human blood-pressure by Korotkoff's Sound method, its principle is: gauger's employment ear listens to original blood pressure Korotkoff's Sound by stethoscope, and coordinates piezometer to read systolic pressure and diastolic pressure according to the Korotkoff's Sound heard.But adopt this mercurial sphygmomanometer Measure blood pressure to have some limitations, can the audition of gauger and the impact of vision be subject to, thus cause measurement result to produce error.
In order to overcome the limitation of mercurial sphygmomanometer, prior art proposes a kind of electric sphygmomanometer, this electric sphygmomanometer is by vibration measuring method Measure blood pressure, its principle is: increasing or reducing in the process of static pressure, controller extracts pulse wave by sensor and describes its envelope, then analyzed the geometric shape of envelope, the static pressure corresponding to envelope peak is mean pressure, estimates diastolic pressure and systolic pressure by mean pressure by ratio method or bathmometry.That is, electric sphygmomanometer is on a large amount of experimental data bases, by set up systolic pressure, diastolic pressure, mean pressure and pulse signal relation differentiate blood pressure.
But, when adopting electric sphygmomanometer Measure blood pressure, due to set up in each electric sphygmomanometer systolic pressure, diastolic pressure, mean pressure and pulse signal relation and be not suitable for everyone, and different manufacturers, the relation of the systolic pressure in the electric sphygmomanometer that different batches is produced, diastolic pressure, mean pressure and pulse signal also can there are differences, thus cause adopting electric sphygmomanometer Measure blood pressure there is measurement error, and concordance is poor.
Summary of the invention
The invention provides a kind of blood pressure measurement device and method, improve accuracy and the concordance of blood pressure measurement.
The invention provides a kind of blood pressure measurement device, comprising: sphygmomanometer girding and the sphygomanometer blood processor be connected with described sphygmomanometer girding; Wherein,
Described sphygmomanometer girding comprises: air bag, for carrying out the trachea of inflation/deflation use to described air bag, and electronic skin;
Described sphygomanometer blood processor comprises: the air pump be connected with described trachea, air valve and pressure transducer, and the microprocessor be connected respectively with described air pump, air valve and pressure transducer;
Wherein, described electronic skin is connected with described microprocessor, to realize below the described air bag of detection acquisition, and send to described microprocessor away from the beat pulse signal of the brachial artery of heart one end, for described microprocessor according to described beat pulse signal, and from the voltage signal that pressure transducer obtains, obtain corresponding blood pressure information.
In one embodiment of this invention, described sphygomanometer blood processor also comprises: amplifying circuit, be connected with described pressure transducer and described microprocessor respectively, convert corresponding described voltage signal to for described pressure transducer is detected the air pressure obtained, and send to described microprocessor.
In one embodiment of this invention, described electronic skin comprises multiple pressure sensor unit.
The present invention also provides a kind of blood pressure measuring method, is applied in blood pressure measurement device, comprises:
Air pump described in described Microprocessor S3C44B0X and described air valve, inflate described air bag, when detecting gasbag pressure and reaching preset pressure, controls described air bag and exit;
Described microprocessor carries out in deflation course at the described air bag of control, and during by the first moment, gasbag pressure corresponding to the voltage signal that described pressure transducer collection obtains is as systolic pressure; Wherein, described first moment be described microprocessor obtain from described electronic skin the first beat pulse signal time corresponding moment;
Described microprocessor continues the beat pulse signal obtaining described electronic skin collection acquisition, and when the second moment, using gasbag pressure corresponding for the voltage signal of described pressure transducer collection acquisition as diastolic pressure; Wherein, described second moment is the beat pulse signal that its amplitude that described electronic skin obtains reaches peak value is the corresponding moment.
In an embodiment of the present invention, described preset pressure is greater than the peak amplitude of arteries vibration, and under described preset pressure, described electronic skin starts to can't detect beat pulse.
A kind of blood pressure measurement device provided by the invention and method, below air bag is detected by electronic skin, and away from the beat pulse signal of heart one end brachial artery, the beat pulse signal that microprocessor records according to electronic skin, with the voltage signal of beat pulse signal for obtaining according to the specific pressure transducer of selection, as the blood pressure information that human body is corresponding, overcome existing electric sphygmomanometer on a large amount of experimental data bases, by setting up systolic pressure, diastolic pressure, the comparatively large and problem that concordance is poor of the measurement error that the relation of mean pressure and pulse signal differentiates blood pressure and causes, improve accuracy and the concordance of blood pressure measurement.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the blood pressure measurement device embodiment one that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the blood pressure measurement device embodiment two that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the electronic skin that Fig. 3 provides for the embodiment of the present invention;
The flow chart of the blood pressure measuring method that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The structural representation of the blood pressure measurement device embodiment one that Fig. 1 provides for the embodiment of the present invention, as shown in Figure 1, this blood pressure measurement device, comprising: sphygmomanometer girding 10 and the sphygomanometer blood processor 20 be connected with sphygmomanometer girding 10.
In the present embodiment, sphygmomanometer girding 10 comprises: air bag 11, for carrying out the trachea 12 of inflation/deflation use to air bag 11, and electronic skin 13; Sphygomanometer blood processor 20 comprises: the air pump 21 be connected with trachea 12, air valve 22 and pressure transducer 23, and the microprocessor 24 be connected respectively with air pump 21, air valve 22 and pressure transducer 23; Wherein, electronic skin 13 is connected with microprocessor 24, to realize below the air bag of detection acquisition, and send to microprocessor 24 away from the beat pulse signal of the brachial artery of heart one end, for microprocessor 24 according to beat pulse signal, and from the voltage signal that pressure transducer 23 obtains, obtain corresponding blood pressure information.
In the present embodiment, alternatively, electronic skin 13 can be seamed in below sphygmomanometer girding 10, or also can adopt other connected modes, and the present invention does not do any restriction to this.It should be noted that, air bag 11 and electronic skin 13 must be mutually isolated, are independent of each other, but distance is also enough near, could measure more exactly.In addition, when electronic skin touch human body skin, under the region touched, the pressure distribution of each point can be detected accurately.
In addition, electronic skin 13 can be wired with the connected mode of microprocessor 24, and also can be wireless, the present invention do any restriction to this.
Concrete, sphygmomanometer girding 10 can be enclosed within arm according to purposes size difference, and wrist etc. need the human body of Measure blood pressure to carry out blood pressure measurement.
The blood pressure measurement device that the embodiment of the present invention provides, by arranging electronic skin on sphygmomanometer girding, be used for detecting below air bag, and the beat pulse signal of brachial artery away from heart one end, the beat pulse signal that microprocessor records according to electronic skin, with the voltage signal of beat pulse signal for obtaining according to the specific pressure transducer of selection, as the blood pressure information that human body is corresponding, overcome existing electric sphygmomanometer on a large amount of experimental data bases, by setting up systolic pressure, diastolic pressure, the comparatively large and problem that concordance is poor of the measurement error that the relation of mean pressure and pulse signal differentiates blood pressure and causes, improve accuracy and the concordance of blood pressure measurement.
Further, on the basis of the technical scheme of the embodiment of the present invention one, the structural representation of the blood pressure measurement device embodiment two that Fig. 2 provides for the embodiment of the present invention, as shown in Figure 2, sphygomanometer blood processor 20 also comprises: amplifying circuit 25, be connected with pressure transducer 23 and microprocessor 24 respectively, the air pressure for pressure transducer 23 being detected acquisition converts corresponding voltage signal to, and sends to microprocessor 24.
Concrete, in the present embodiment, microprocessor 24 also comprises analog-to-digital conversion module, for voltage signal and beat pulse signal are converted into digital signal.In addition, microprocessor 24 can be micro-control unit (MicrocontrollerUnit; Be called for short MCU).
In the present embodiment, electronic skin 13 comprises multiple pressure sensor unit 130.
Concrete, the structural representation of the electronic skin that Fig. 3 provides for the embodiment of the present invention, as shown in Figure 3, pressure sensor unit 130 is arranged in matrix on flexible material, and wherein, the quantity of pressure sensor unit is at least 1, quantity is more, the degree of accuracy of Measure blood pressure is higher, and Fig. 3 is described for 24 pressure sensor unit, and the present invention is not as limit.
In addition, in the present embodiment, as shown in Figure 3, electronic skin 13 also comprises processing unit 131, and processing unit 131 processes for pressure signal pressure sensor unit 130 obtained, and generates the data that can identify in MCU.
Concrete, the scope of the pressure signal that the pressure sensor unit 130 in electronic skin obtains may not in the scope of MCU process, or the pressure signal obtained not is level and smooth, after processing unit 131 processes, the scope of the pressure signal that the pressure sensor unit 130 in electronic skin can be obtained is converted into the scope that MCU can process, or to the smoothing process of pressure signal obtained, improve accuracy when adopting this blood pressure measurement device Measure blood pressure.It should be noted that, also may be there is other problem by the pressure signal of pressure sensor unit 130 acquisition in electronic skin, and the processing unit that the present embodiment proposes can process for various problem, will not enumerate at this.
Concrete, the device that electronic skin can also can measure beat pulse signal for other, the present invention is not limited with pressure transducer.
The flow chart of the blood pressure measuring method that Fig. 4 provides for the embodiment of the present invention, as shown in Figure 4, this blood pressure measuring method specifically comprises the following steps:
Step S401, Microprocessor S3C44B0X air pump and air valve, inflate air bag, when detecting gasbag pressure and reaching preset pressure, controls air bag and exit.
Step S402, microprocessor carry out in deflation course at control air bag, and during by the first moment, gasbag pressure corresponding to voltage signal that pressure transducer collection obtains is as systolic pressure.
Wherein, the first moment be microprocessor obtain from electronic skin the first beat pulse signal time corresponding moment.
Step S403, microprocessor continue the beat pulse signal obtaining electronic skin collection acquisition, and when the second moment, using gasbag pressure corresponding for the voltage signal of pressure transducer collection acquisition as diastolic pressure.
Wherein, the second moment was the beat pulse signal that its amplitude that electronic skin obtains reaches peak value is the corresponding moment.
Alternatively, preset pressure can be 220mmHg.
In the present embodiment, the speed of Microprocessor S3C44B0X air bag deflation is fixing, and only have when air bag deflation is linear process, the speed of venting is fixed, and air pressure energy and the voltage signal after pressure transducer conversion and amplifier linearly corresponding.
This blood pressure measuring method, be applied in the blood pressure measurement device shown in Fig. 1 to Fig. 2, it is similar that it realizes principle, repeats no more herein.
In addition, it should be noted that, when adopting the blood pressure measurement device Measure blood pressure shown in Fig. 1 to Fig. 2, the mode that can also adopt pressurizes measures, the present invention is not specifically limited this.
The blood pressure measuring method that the embodiment of the present invention provides, carries out in deflation course by microprocessor at control air bag, and during by the first moment, gasbag pressure corresponding to voltage signal that pressure transducer collection obtains is as systolic pressure; Microprocessor continues the beat pulse signal obtaining electronic skin collection acquisition, and when the second moment, using gasbag pressure corresponding for the voltage signal of pressure transducer collection acquisition as diastolic pressure; The beat pulse signal that microprocessor records according to electronic skin, with the voltage signal of beat pulse signal for obtaining according to the specific pressure transducer of selection, as the blood pressure information that human body is corresponding, overcome existing electric sphygmomanometer on a large amount of experimental data bases, by set up systolic pressure, diastolic pressure, mean pressure and pulse signal relation differentiate blood pressure and the comparatively large and problem that concordance is poor of the measurement error that causes, improve accuracy and the concordance of blood pressure measurement.
Further, on the basis of the technical scheme of above-described embodiment, preset pressure is greater than the peak amplitude of arteries vibration, and under preset pressure, electronic skin starts to can't detect beat pulse.
Concrete, step S401 is specifically as follows another implementation: Microprocessor S3C44B0X air pump and air valve, air bag is inflated, when detecting gasbag pressure and reaching 180mmHg, detect whether there is beat pulse signal by electronic skin, if exist, continue to control air pump and inflate in air bag, until the pressure in air bag reaches 220mmHg.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a blood pressure measurement device, is characterized in that, comprising: sphygmomanometer girding and the sphygomanometer blood processor be connected with described sphygmomanometer girding; Wherein,
Described sphygmomanometer girding comprises: air bag, for carrying out the trachea of inflation/deflation use to described air bag, and electronic skin;
Described sphygomanometer blood processor comprises: the air pump be connected with described trachea, air valve and pressure transducer, and the microprocessor be connected respectively with described air pump, air valve and pressure transducer;
Wherein, described electronic skin is connected with described microprocessor, to realize below the described air bag of detection acquisition, and send to described microprocessor away from the beat pulse signal of the brachial artery of heart one end, for described microprocessor according to described beat pulse signal, and from the voltage signal that pressure transducer obtains, obtain corresponding blood pressure information.
2. equipment according to claim 1, it is characterized in that, described sphygomanometer blood processor also comprises: amplifying circuit, be connected with described pressure transducer and described microprocessor respectively, convert corresponding described voltage signal to for described pressure transducer is detected the air pressure obtained, and send to described microprocessor.
3. equipment according to claim 1 and 2, is characterized in that, described electronic skin comprises multiple pressure sensor unit.
4. a blood pressure measuring method, is applied in the arbitrary described blood pressure measurement device of claim 1-3, it is characterized in that, comprising:
Air pump described in described Microprocessor S3C44B0X and described air valve, inflate described air bag, when detecting gasbag pressure and reaching preset pressure, controls described air bag and exit;
Described microprocessor carries out in deflation course at the described air bag of control, and during by the first moment, gasbag pressure corresponding to the voltage signal that described pressure transducer collection obtains is as systolic pressure; Wherein, described first moment be described microprocessor obtain from described electronic skin the first beat pulse signal time corresponding moment;
Described microprocessor continues the beat pulse signal obtaining described electronic skin collection acquisition, and when the second moment, using gasbag pressure corresponding for the voltage signal of described pressure transducer collection acquisition as diastolic pressure; Wherein, described second moment is the beat pulse signal that its amplitude that described electronic skin obtains reaches peak value is the corresponding moment.
5. method according to claim 4, is characterized in that, described preset pressure is greater than the peak amplitude of arteries vibration, and under described preset pressure, described electronic skin starts to can't detect beat pulse.
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| CN201510645364.XA CN105167764A (en) | 2015-09-30 | 2015-09-30 | Blood pressure measuring device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107174230A (en) * | 2017-06-22 | 2017-09-19 | 嘉兴智杰电子有限公司 | Intelligent sphygmomanometer and its blood pressure metering method |
| CN108836294A (en) * | 2018-05-16 | 2018-11-20 | 黄河科技学院 | Self-service physiology detection apparatus |
| CN109008094A (en) * | 2018-07-03 | 2018-12-18 | 京东方科技集团股份有限公司 | Wrist strap and its elasticity adjusting method, watch and its elasticity adjusting method |
| CN111407253A (en) * | 2020-04-09 | 2020-07-14 | 上海然恒医疗科技有限公司 | Method and system for indirectly measuring pressure variation in blood vessel by using waveform variation |
| CN112426137A (en) * | 2020-11-02 | 2021-03-02 | 北京大学深圳研究生院 | Health detector and system based on pulse and blood pressure |
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| CN111407253A (en) * | 2020-04-09 | 2020-07-14 | 上海然恒医疗科技有限公司 | Method and system for indirectly measuring pressure variation in blood vessel by using waveform variation |
| CN112426137A (en) * | 2020-11-02 | 2021-03-02 | 北京大学深圳研究生院 | Health detector and system based on pulse and blood pressure |
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