CN104720775A - Electronic hematomanometer with automatic correcting function - Google Patents
Electronic hematomanometer with automatic correcting function Download PDFInfo
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- CN104720775A CN104720775A CN201310709956.4A CN201310709956A CN104720775A CN 104720775 A CN104720775 A CN 104720775A CN 201310709956 A CN201310709956 A CN 201310709956A CN 104720775 A CN104720775 A CN 104720775A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
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- Ophthalmology & Optometry (AREA)
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention relates to an electronic hematomanometer with an automatic correcting function. The electronic hematomanometer is characterized by comprising a zero-point full-degree switching unit, a pressure detection unit, a condition judgment unit, a parameter calculation unit, a parameter storage unit and a pressure correction unit which cooperate with one another to realize an automatic static pressure correction function. Compared with the prior art, the electronic hematomanometer has the advantages that the whole electronic hematomanometer is simple in structure and low in manufacturing cost, corresponding function units are added on the basis of the prior art to realize the automatic correcting and adjusting function, and the electronic hematomanometer is convenient to produce, machine and operate and reliable in performance; accuracy of the electronic hematomanometer is greatly improved, and pressure measuring accuracy of the electronic hematomanometer is improved from 3mmHg to 1mmHg; production efficiency of the electronic hematomanometer is improved greatly, and manual debugging and correcting time is reduced from 2 minutes per set originally to 15 seconds per set currently.
Description
Technical field
The present invention relates to a kind of electric sphygmomanometer, relate in particular to a kind of electric sphygmomanometer with zero offset capability.
Background technology
Along with people's living standard improves constantly, also more come about high to healthy attention degree.Sphygomanometer has become the part in modern's life, and more and more enter in the daily life of ordinary people, the market demand of electric sphygmomanometer increases day by day.In the market, sphygomanometer of a great variety, Mechanical course, manual operation etc., but market also there is not the electric sphygmomanometer with zero offset capability.
In present electric sphygmomanometer production and processing technology, pressure precision is corrected to committed step, and existing technique is by having adjusted manually.Be provided with 2 potentiometers in circuit of electronic sphygmomanometer, one (as VR1), for subtractor is for adjusting value at tonometric zero point, the force value of measurement is finely tuned in another one (as VR2) adjustment by the electric current of pressure transducer; In production electric sphygmomanometer process, first need to do pressure correction operation, this operation divides 2 steps to complete: 1) zero correction, electric sphygmomanometer is communicated with 0mmHg, then manually adjust potentiometer (as VR1), make electric sphygmomanometer record pressure signal and meet (as 800 ~ 900) 2 in desired extent) full scale correction, electric sphygmomanometer is communicated with 300mmHg, then manually adjust potentiometer (as VR2), make electric sphygmomanometer record pressure signal and meet in desired extent (as 2390 ~ 2410).
As in above-mentioned pressure correction process, the efficiency of artificial adjustment is extremely low, and every sheet electric sphygmomanometer module has corrected needs 2 minutes, and due to factors such as human users's error and errors in reading, causes the precision of electronic blood pressure measures pressure low.Therefore, a kind of new connecting device of exigence solves above-mentioned technical problem.
Summary of the invention
The present invention is just for the technical problem existed in prior art, the electric sphygmomanometer with zero offset capability that a kind of structure is simple, easy to operate is provided, this electric sphygmomanometer production and processing is convenient, and the precision of electric sphygmomanometer improves greatly, is convenient to large-scale popularization.
To achieve these goals, technical scheme of the present invention is as follows, a kind of electric sphygmomanometer with zero offset capability, it is characterized in that, described electric sphygmomanometer comprises full scale switch unit at zero point, pressure sensing cell, condition judgment unit, parameter calculation unit, parameter storage unit and pressure calibration unit, and cooperatively interacting between described unit achieves static pressure zero offset capability.This electric sphygmomanometer, on the basis of existing sphygomanometer, by increasing local unit, realizes zero offset capability.
As a modification of the present invention, described electric sphygmomanometer also comprises pressure detection unit and automatic identification unit.
As a modification of the present invention, described zero point full scale switch unit for switching force value 0mmHg and 300mmHg so that electric sphygmomanometer gathers initial value; Described pressure sensing cell is used for electric sphygmomanometer and gathers pressure signal, calculates the initial value gathered; After described parameter calculation unit pressure detecting, by gather initial value, according to zero point=0mmHg, full scale=300mmHg calculating pressure scale parameter; Parameter is calculated the pressure proportional parameter obtained by described parameter storage unit, is stored in inner Flash, to transfer calculating pressure value later; The pressure proportional parameter being stored into Flash recalls by described pressure calibration unit, the initial value of collection is transformed into the rear force value of calibration.
As a modification of the present invention, the process of described electric sphygmomanometer is as follows:
A) electric sphygmomanometer power-up initializing, whether detect starting key and press, after determining start, when MCU receives and enters debug signal, electric sphygmomanometer enters static pressure automatic calibration pattern;
B) after electric sphygmomanometer enters automatic calibration pattern, initiation pressure is detected and is determined as null pressure, the domain of walker of null pressure meets collection 32 force value, when the difference meeting Pressure maximum value and minima is less than the condition of 0.5mmHg, sphygomanometer is judged to be zero point stability, by this null pressure A stored in buffer;
C) electric sphygmomanometer output signal, external pressure source is made to export 300mmHg, and initiation pressure detecting again, and pressure domain of walker, gather 32 force value, when the difference meeting Pressure maximum value and minima is less than 0.5mmHg, sphygomanometer is judged to be that full scale is stablized, by this full scale pressure B stored in buffer;
D) electric sphygmomanometer calculating pressure scale parameter C, according to C=(B-A)/300;
E) electric sphygmomanometer output signal, again makes external pressure source export 0mmHg and 300mmHg, again calculates C value, and when 2 result of calculations are identical, electric sphygmomanometer thinks that C value is effective;
F) electric sphygmomanometer is by this pressure proportional parameter C automatically stored in inner FLASH, does not lose, press closing key, return standby because of electric sphygmomanometer power down.
As a modification of the present invention, it is characterized in that, described external pressure source output accuracy is 0.1mmHg.
Relative to prior art, beneficial effect of the present invention is as follows: 1), whole apparatus structure is simple, and cost is low, on the basis of prior art portion scheme, by increasing corresponding functional unit, realizes the function that automatic calibration regulates; Production and processing is easy to operate, dependable performance; 2) precision of this electric sphygmomanometer improves greatly, and the measurement pressure precision of electric sphygmomanometer rises to 1mmHg by 3mmHg; 3) production efficiency of this electric sphygmomanometer is promoted greatly, is reduced to about 15 seconds/platform by original manual debugging alignment time about 2 minutes/platform.
Accompanying drawing explanation
Fig. 1 is operation principle schematic diagram of the present invention.
Detailed description of the invention
In order to deepen the understanding of the present invention and understanding, below in conjunction with the drawings and specific embodiments the present invention being made further instructions and introducing.
embodiment 1:
See Fig. 1, a kind of electric sphygmomanometer with zero offset capability, described electric sphygmomanometer comprises full scale switch unit at zero point, pressure sensing cell, condition judgment unit, parameter calculation unit, parameter storage unit and pressure calibration unit, and cooperatively interacting between described unit achieves static pressure zero offset capability.This electric sphygmomanometer, on the basis of existing sphygomanometer, by increasing local unit, realizes zero offset capability; Described electric sphygmomanometer also comprises pressure detection unit and automatic identification unit; Described zero point full scale switch unit for switching force value 0mmHg and 300mmHg so that electric sphygmomanometer gathers initial value; Described pressure sensing cell is used for electric sphygmomanometer and gathers pressure signal, calculates the initial value gathered; After described parameter calculation unit pressure detecting, by gather initial value, according to zero point=0mmHg, full scale=300mmHg calculating pressure scale parameter; Parameter is calculated the pressure proportional parameter obtained by described parameter storage unit, is stored in inner Flash, to transfer calculating pressure value later; The pressure proportional parameter being stored into Flash recalls by described pressure calibration unit, the initial value of collection is transformed into the rear force value of calibration.
See Fig. 1, the work process of this technical scheme is as follows:
The process of described electric sphygmomanometer is as follows:
A) electric sphygmomanometer power-up initializing, whether detect starting key and press, after determining start, when MCU receives and enters debug signal, electric sphygmomanometer enters static pressure automatic calibration pattern;
B) after electric sphygmomanometer enters automatic calibration pattern, initiation pressure is detected and is determined as null pressure, the domain of walker of null pressure meets collection 32 force value, when the difference meeting Pressure maximum value and minima is less than the condition of 0.5mmHg, sphygomanometer is judged to be zero point stability, by this null pressure A stored in buffer;
C) electric sphygmomanometer output signal, external pressure source is made to export 300mmHg, and initiation pressure detecting again, and pressure domain of walker, gather 32 force value, when the difference meeting Pressure maximum value and minima is less than 0.5mmHg, sphygomanometer is judged to be that full scale is stablized, by this full scale pressure B stored in buffer;
D) electric sphygmomanometer calculating pressure scale parameter C, according to C=(B-A)/300;
E) electric sphygmomanometer output signal, again makes external pressure source export 0mmHg and 300mmHg, again calculates C value, and when 2 result of calculations are identical, electric sphygmomanometer thinks that C value is effective;
F) electric sphygmomanometer is by this pressure proportional parameter C automatically stored in inner FLASH, does not lose, press closing key, return standby because of electric sphygmomanometer power down.
The pressure fast and stable of this technical scheme, in 2S, pressure is stabilized to 0mmHg or 300mmH; Realize communicating with electric sphygmomanometer, according to the nonpassage of signal of electric sphygmomanometer, pressure source exports obstructed force value, supplied for electronic sphygomanometer calibration validation.
It should be noted that above-described embodiment is only preferred embodiment of the present invention; be not used for limiting protection scope of the present invention; equivalent replacement done on the basis of the above or substitute and all belong to protection scope of the present invention, protection scope of the present invention is as the criterion with claims.
Claims (5)
1. one kind has the electric sphygmomanometer of zero offset capability, it is characterized in that, described electric sphygmomanometer comprises full scale switch unit at zero point, pressure sensing cell, condition judgment unit, parameter calculation unit, parameter storage unit and pressure calibration unit, and cooperatively interacting between described unit achieves static pressure zero offset capability.
2. a kind of electric sphygmomanometer with zero offset capability according to claim 1, it is characterized in that, described electric sphygmomanometer also comprises pressure detection unit and automatic identification unit.
3. a kind of electric sphygmomanometer with zero offset capability according to claim 1, is characterized in that, described zero point full scale switch unit for switching force value 0mmHg and 300mmHg so that electric sphygmomanometer gathers initial value; Described pressure sensing cell is used for electric sphygmomanometer and gathers pressure signal, calculates the initial value gathered; After described parameter calculation unit pressure detecting, by gather initial value, according to zero point=0mmHg, full scale=300mmHg calculating pressure scale parameter; Parameter is calculated the pressure proportional parameter obtained by described parameter storage unit, is stored in inner Flash, to transfer calculating pressure value later; The pressure proportional parameter being stored into Flash recalls by described pressure calibration unit, the initial value of collection is transformed into the rear force value of calibration.
4. a kind of electric sphygmomanometer with zero offset capability according to claim 1 or 2 or 3, it is characterized in that, the process of described electric sphygmomanometer is as follows:
Electric sphygmomanometer power-up initializing, whether detect starting key and press, after determining start, when MCU receives and enters debug signal, electric sphygmomanometer enters static pressure automatic calibration pattern;
After electric sphygmomanometer enters automatic calibration pattern, initiation pressure is detected and is determined as null pressure, the domain of walker of null pressure, meet collection 32 force value, when the difference meeting Pressure maximum value and minima is less than the condition of 0.5mmHg, sphygomanometer is judged to be zero point stability, by this null pressure A stored in buffer;
Electric sphygmomanometer outputs signal, external pressure source is made to export 300mmHg, and initiation pressure detecting again, and pressure domain of walker, gather 32 force value, when the difference meeting Pressure maximum value and minima is less than 0.5mmHg, sphygomanometer is judged to be that full scale is stablized, by this full scale pressure B stored in buffer;
Electric sphygmomanometer calculating pressure scale parameter C, according to C=(B-A)/300;
Electric sphygmomanometer outputs signal, and again makes external pressure source export 0mmHg and 300mmHg, again calculates C value, and when 2 result of calculations are identical, electric sphygmomanometer thinks that C value is effective;
This pressure proportional parameter C automatically stored in inner FLASH, does not lose because of electric sphygmomanometer power down, presses closing key, return standby by electric sphygmomanometer.
5., according to claim 4 or described a kind of electric sphygmomanometer with zero offset capability, it is characterized in that, described external pressure source output accuracy is 0.1mmHg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310709956.4A CN104720775A (en) | 2013-12-22 | 2013-12-22 | Electronic hematomanometer with automatic correcting function |
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| CN201310709956.4A CN104720775A (en) | 2013-12-22 | 2013-12-22 | Electronic hematomanometer with automatic correcting function |
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| CN104720775A true CN104720775A (en) | 2015-06-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105249946A (en) * | 2015-10-26 | 2016-01-20 | 武汉思创电子有限公司 | Invasive blood pressure acquisition circuit for inhibiting temperature drift |
| CN105342592A (en) * | 2015-11-27 | 2016-02-24 | 江苏鹿得医疗电子股份有限公司 | Electronic sphygmomanometer capable of automatically calibrating zero point and full scale |
| CN109875540A (en) * | 2017-12-06 | 2019-06-14 | 江苏洪诚健康科技有限公司 | A kind of digital display device for mercury sphygmomanometer |
| CN110448279A (en) * | 2019-09-18 | 2019-11-15 | 东莞市好康电子科技有限公司 | A kind of heart frequency spectrum sphygmomanometer and heart frequency spectrum detection system |
Citations (5)
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| TW548094B (en) * | 1999-11-16 | 2003-08-21 | Microlife Corp | Blood pressure monitor calibrating device, a system for calibrating a blood pressure and a method for calibrating a blood pressure monitor |
| CN2726524Y (en) * | 2004-09-22 | 2005-09-21 | 合世生医科技股份有限公司 | Calibration device for electronic blood pressure machine |
| CN1778269A (en) * | 2004-11-23 | 2006-05-31 | 深圳迈瑞生物医疗电子股份有限公司 | A non-invasive electronic blood pressure detection method and device |
| CN101884529A (en) * | 2009-05-15 | 2010-11-17 | 深圳市鑫汇科科技有限公司 | Electronic sphygmomanometer and calibration method thereof |
| CN202235339U (en) * | 2011-08-12 | 2012-05-30 | 张国源 | Blood pressure measurement device and system that can automatically check and correct its own accuracy |
-
2013
- 2013-12-22 CN CN201310709956.4A patent/CN104720775A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TW548094B (en) * | 1999-11-16 | 2003-08-21 | Microlife Corp | Blood pressure monitor calibrating device, a system for calibrating a blood pressure and a method for calibrating a blood pressure monitor |
| CN2726524Y (en) * | 2004-09-22 | 2005-09-21 | 合世生医科技股份有限公司 | Calibration device for electronic blood pressure machine |
| CN1778269A (en) * | 2004-11-23 | 2006-05-31 | 深圳迈瑞生物医疗电子股份有限公司 | A non-invasive electronic blood pressure detection method and device |
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| CN202235339U (en) * | 2011-08-12 | 2012-05-30 | 张国源 | Blood pressure measurement device and system that can automatically check and correct its own accuracy |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105249946A (en) * | 2015-10-26 | 2016-01-20 | 武汉思创电子有限公司 | Invasive blood pressure acquisition circuit for inhibiting temperature drift |
| CN105249946B (en) * | 2015-10-26 | 2018-05-15 | 武汉思创电子有限公司 | A kind of invasive blood pressure Acquisition Circuit for suppressing temperature drift |
| CN105342592A (en) * | 2015-11-27 | 2016-02-24 | 江苏鹿得医疗电子股份有限公司 | Electronic sphygmomanometer capable of automatically calibrating zero point and full scale |
| CN109875540A (en) * | 2017-12-06 | 2019-06-14 | 江苏洪诚健康科技有限公司 | A kind of digital display device for mercury sphygmomanometer |
| CN110448279A (en) * | 2019-09-18 | 2019-11-15 | 东莞市好康电子科技有限公司 | A kind of heart frequency spectrum sphygmomanometer and heart frequency spectrum detection system |
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Application publication date: 20150624 |