CN204562131U - High-precision blood pressure measuring device - Google Patents
High-precision blood pressure measuring device Download PDFInfo
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- CN204562131U CN204562131U CN201520251532.2U CN201520251532U CN204562131U CN 204562131 U CN204562131 U CN 204562131U CN 201520251532 U CN201520251532 U CN 201520251532U CN 204562131 U CN204562131 U CN 204562131U
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- blood pressure
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- pulse wave
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Abstract
This utility model relates to a kind of high-precision blood pressure measuring device, be be connected adder+amplifier brachial artery sensor by radial artery sensor respectively and be respectively connected adder+amplifier through following module with step switch through following module and step switch, single-chip microcomputer is formed with A/D converter, keyboard, LCD, memorizer and linking respectively.Pulse wave signal segment processing is applicable to all ages and classes colony, the Real-Time Monitoring of blood pressure in the long period can be realized, all with timely diagnosis, foundation has been provided to hypertensive prevention in advance.This method measurement device volume without cuff noinvasive continuous BP measurement based on pulse wave translation time is little, be easy to carry about with one, break away from the constraint of air bag, realize the Real-Time Monitoring of blood pressure in the long period, overcome electronic blood pressure measurement device in blood pressure measurement scope and the discrepant deficiency of different crowd, can Measure blood pressure more exactly.
Description
Technical field:
This utility model relates to a kind of blood pressure measuring device, is especially applicable to the high-precision blood pressure measuring device of all ages and classes colony.
Background technology
What existing blood pressure measurement adopted has wound intubate sphygmomanometry, Korotkoff's Sound auscultation, oscillometry; There is wound intubate blood pressure measurement, more accurate to the measurement of arteriotony, but by operation, conduit must be inserted Ink vessel transfusing, the scope of application has limitation.Korotkoff's Sound auscultation is pressurizeed by cuff and listen pulse tone method that Measure blood pressure solves non-invasivetesting, but source of error has more uncertainty more.And oscillographic method blood pressure detecting technology, there is certain inferior position compared to noinvasive continuous BP measurement, practicality and convenience are all not as good as noinvasive continuous BP measurement.And in existing continuous BP measurement method, tonometry, requires to keep sensor accurately to locate for a long time; Volume-compensation method, systolic pressure is not accurate enough, and gasbag pressure can make measured have sense of discomfort; Pulse wave characteristic parameters method, modeling method is complicated, and physiologic factor impact is large and accuracy is difficult to guarantee; Pulse wave velocity rule because of individual variation different larger to Influence on test result.
Although have many blood pressure measuring devices on the market now, as mercury gauge sphygmomanometer, random zero point sphygomanometer, spring meter type blood pressure meter, autoelectrinic sphygomanometer, the long-time sphygmomanometer of batch (-type), skin small artery blood pressure determination meter etc.But these these sphygomanometers all need according to difference and design, and applicable surface is narrow comparatively speaking.If sphygomanometer at random zero point applies for overcoming when the personal errors such as range estimation study blood pressure more exactly; The long-time sphygmomanometer of batch (-type) is then used to Monitoring of blood pressure change in continuous 24 hours; Skin small artery blood pressure determination meter is child, baby, neonate and designing; Due to intelligentized development, electric sphygmomanometer can inflate the reading of inflation and display of blood pressure value in cuff from trend.A fingerstall only need be worn on finger by finger cot type electric sphygmomanometer, just can Measure blood pressure automatically, more convenient.It should be noted that the pressure value that the pressure value that these autoelectrinic sphygomanometers record may record with mercury sphygmomanometer has certain difference, should verify in advance, and remember this difference.As Omron series sphygomanometer on the market, just need calibration in use for some time, and oneself calibration is at home difficult to accomplish, general selling post also cannot provide calibration service.This illustrates, is also noted that this problem of verification, is not suitable for learning concept and grasps incomplete middle-aged and elderly people etc. when above-mentioned sphygomanometer uses.
And the electronic blood pressure measurement device meter that market is sold is qualified substantially, can Measure blood pressure more exactly, but the electronic blood pressure measurement device of dissimilar, different brands is in blood pressure measurement scope and to the suitability of patient groups is discrepant.Such as, the measurement upper limit of some electronic blood pressure measurement device systolic pressure (high pressure) is 26.7kPa (200mmHg), the measurement upper limit of diastolic pressure (low pressure) is 20kPa (150mmHg), and some electronic blood pressure measurement device is then greater than the upper limit of above-mentioned measurement; And for example, intelligentized electronic blood pressure measurement device is wider on applicable patient groups than the electronic blood pressure measurement device of non intelligentization.Whether electronic blood pressure measurement device Measure blood pressure is accurately relative.Within the scope of the blood pressure measurement scope and applicable patients of electronic blood pressure measurement device permission, Measure blood pressure is accurately.Exceed the scope of application of electronic blood pressure measurement device, then blood pressure measurement is just forbidden or likely can not to be measured out.
Summary of the invention
The purpose of this utility model is just for above-mentioned the deficiencies in the prior art, provides a kind of high-precision blood pressure measuring device being applicable to all ages and classes colony.
The purpose of this utility model is achieved through the following technical solutions:
High-precision blood pressure measuring device, respectively be connected adder+amplifier a I through following module a with step switch a by radial artery sensor, adder+amplifier a II and adder+amplifier a III, brachial artery sensor is connected adder+amplifier b I through following module b respectively with step switch b, adder+amplifier b II and adder+amplifier b III, adder+amplifier a I is connected with A/D converter after being connected with adder+amplifier b I again, adder+amplifier a II is connected with A/D converter after being connected with adder+amplifier b II again, adder+amplifier a III is connected with A/D converter after being connected with adder+amplifier b III again, single-chip microcomputer respectively with A/D converter, keyboard, LCD, memorizer and link are formed.
Beneficial effect: the Real-Time Monitoring that this method of pulse wave signal segment processing and measurement can be realized blood pressure in the long period, for under human motion state, the measurement of blood pressure provides probability, and in blood pressure measurement scope and to more adding system and accurately on the blood pressure measurement of patient groups, significantly improve the certainty of measurement of blood pressure, take to have used segment processing, can be have this part poor problem for the pressure value scope of different patient groups, provide and measure countermeasure comparatively accurately, widened the scope of application and made it humanized.These have all provided foundation to hypertensive prevention in advance with timely diagnosis.And this method all has important Research Significance and practical value for aspects such as the continuous monitoring of blood pressure and the clinical monitorings of Patients with geriatric cardiovascular and cerebrovascular diseases.
This method measurement device volume without cuff noinvasive continuous BP measurement based on pulse wave translation time is little, be easy to carry about with one, the constraint of air bag can not only be broken away from, realize the Real-Time Monitoring of blood pressure in the long period, and, the electronic blood pressure measurement device overcoming dissimilar, different brands, can Measure blood pressure more exactly in blood pressure measurement scope and to the suitability of patient groups being discrepant this part is not enough.
Accompanying drawing explanation
Fig. 1 is high-precision blood pressure measuring device structured flowchart.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated.
High-precision blood pressure measuring device, respectively be connected adder+amplifier a I through following module a with step switch a by radial artery sensor, adder+amplifier a II and adder+amplifier a III, brachial artery sensor is connected adder+amplifier b I through following module b respectively with step switch b, adder+amplifier b II and adder+amplifier b III, adder+amplifier a I is connected with A/D converter after being connected with adder+amplifier b I again, adder+amplifier a II is connected with A/D converter after being connected with adder+amplifier b II again, adder+amplifier a III is connected with A/D converter after being connected with adder+amplifier b III again, single-chip microcomputer respectively with A/D converter, keyboard, LCD, memorizer and link are formed.
Based on pulse wave translation time without cuff survey meter of blood pressure, be shown with keyboard, LCD12864 respectively by main control singlechip, RAM memorizer, A/D data acquisition a, A/D data acquisition b and power module be connected, radial artery sensor is connected with main control singlechip with A/D data acquisition a through adder circuit, and brachial artery sensor is through connecting and composing through adder circuit and A/D data acquisition b and main control singlechip.
The technical scheme that this utility model technical solution problem adopts is: pulse wave signal acquisition cuicuit (circuit before A/D converter), use piezoelectric transducer a, b respectively from human body radial artery and brachial artery two position synchronous acquisition pulse signals, after delivering to A/D conversion after pulse wave signal segment processing, single-chip microcomputer is passed to through signal conditioning circuit, after the data that pulse wave measurement part exports are carried out date processing by single-chip microcomputer, display waveform and data on the LCD liquid crystal display screen of pulse wave measurement instrument.
The extraction of characteristic point obtains same signal, synchronization in the oscillogram of diverse location by MATLAB software.Primary signal method is utilized to extract pulse wave characteristic point and calculate the conduction time of pulse wave.
Mathematical modeling, adopts polynomial fitting method, builds the relational model of complete accurate pulse wave translation time and arteriotony value.
It mainly controls the collection of pulse wave signal with block switch, then pulse wave signal processed and extract pulse wave characteristic point, arrangement calculates pulse wave translation time, sets up the relational model between pulse wave translation time and blood pressure, realizes the high accuracy blood pressure measurement of age groups.
High-precision blood pressure measuring device based on age groups stores and display eight part composition primarily of pulse transducer, follower, block switch, summer amplifier circuit, A/D data acquisition, main control singlechip, data.
High-precision blood pressure measuring device based on age groups carries out pulse wave signal measurement based on the HK-2000B pulse transducer of piezoelectric type, follower inhibit signal is complete stable, the pulse wave of acquisition is carried out segmentation for subsequent conditioning circuit process, adder circuit by the upwards translation of obtained pulse signal by block switch, make all signal voltage amplitudes in A/D claimed range, adopt the serial a/d chip AD7656 of 16 to pulse signal collection.Calculated by pulse wave translation time and the modeling of relation between pulse wave translation time and arteriotony, thus realize the high accuracy blood pressure measurement of age groups.
When by elastic wristband, tie up with volume, the mode of adhesion, sensor is fixed near the arm place (brachial artery) of elbow in the wrist portion (radial artery) of measured and elbow top, and after pulse wave measurement instrument is powered on, LCD12864 screen shows and welcomes to use pulse wave measurement system, in the software section preset delay time, then display shows the pulse waveform measured, then the realization of corresponding function is carried out by four buttons controlled on pulse wave measurement instrument, when button is pressed successively, image data respectively, send data, clear data and reset.Measuring process is as follows.
A, individual pulse wave sensor are separately fixed at the radial artery of wrist and elbow top near the brachial artery place of the arm of elbow, turn on the power switch, occur pulse wave measurement system human-computer interaction interface, pause three seconds subsequently, LCD12864 display welcomes to use pulse velocity of wave measuring system.
B, button 1, start to gather pulse wave signal, screen display " gathering, please after a while ... ", treat " gathering, please after a while ... " namely printed words represent collection and complete after disappearing.
Measurement pattern selected by C, step switch, and first grade is " the Zhuang people of less than 40 years old ", and second gear is " middle age of 40 years old to 60 years old " third gear is " old people of more than 60 years old " (step switch preference pattern will not show on screen).
D, lower button 2, start to send just now gathered pulse wave signal to host computer, screen display " sending in data, please after a while ... ", after these printed words disappear, representative sends data and completes.
E, prompting " memorizer is full, please delete ... ", memorizer can be emptied by button 3, and screen display " in core dump memory clear, please after a while ..., after these printed words disappear, representative empties memorizer and completes.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection domain that all should belong to this utility model claims.
Claims (1)
1. a high-precision blood pressure measuring device, it is characterized in that, respectively be connected adder+amplifier a I through following module a with step switch a by radial artery sensor, adder+amplifier a II and adder+amplifier a III, brachial artery sensor is connected adder+amplifier b I through following module b respectively with step switch b, adder+amplifier b II and adder+amplifier b III, adder+amplifier a I is connected with A/D converter after being connected with adder+amplifier b I again, adder+amplifier a II is connected with A/D converter after being connected with adder+amplifier b II again, adder+amplifier a III is connected with A/D converter after being connected with adder+amplifier b III again, single-chip microcomputer respectively with A/D converter, keyboard, LCD, memorizer and link are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251532.2U CN204562131U (en) | 2015-04-23 | 2015-04-23 | High-precision blood pressure measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251532.2U CN204562131U (en) | 2015-04-23 | 2015-04-23 | High-precision blood pressure measuring device |
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| CN204562131U true CN204562131U (en) | 2015-08-19 |
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| CN201520251532.2U Expired - Fee Related CN204562131U (en) | 2015-04-23 | 2015-04-23 | High-precision blood pressure measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549639A (en) * | 2017-09-26 | 2019-04-02 | 郑昕 | A kind of pulse wave pressure and blood pressure measurement device and measurement method |
| CN113040738A (en) * | 2021-03-29 | 2021-06-29 | 南京邮电大学 | Blood pressure detection device and blood pressure detection method |
-
2015
- 2015-04-23 CN CN201520251532.2U patent/CN204562131U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549639A (en) * | 2017-09-26 | 2019-04-02 | 郑昕 | A kind of pulse wave pressure and blood pressure measurement device and measurement method |
| CN113040738A (en) * | 2021-03-29 | 2021-06-29 | 南京邮电大学 | Blood pressure detection device and blood pressure detection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160423 |