CN101543404B - Pressure value display method of manual electronic sphygmomanometer and manual electronic sphygmomanometer - Google Patents
Pressure value display method of manual electronic sphygmomanometer and manual electronic sphygmomanometer Download PDFInfo
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- CN101543404B CN101543404B CN2008101026605A CN200810102660A CN101543404B CN 101543404 B CN101543404 B CN 101543404B CN 2008101026605 A CN2008101026605 A CN 2008101026605A CN 200810102660 A CN200810102660 A CN 200810102660A CN 101543404 B CN101543404 B CN 101543404B
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Abstract
The invention relates to a pressure value display method of a manual electronic sphygmomanometer. The manual electronic sphygmomanometer comprises a manual pressurized air pump and an air charging component connected with the manual pressurized air pump. Air pressure in the air charging component is converted by a pressure sensor as well as calculated and treated by a microprocessor to obtain a real-time pressure value, and the microprocessor is connected with a display; in the pressure increasing phase inside the air charging component, the display displays the pressure value or a similar value inside the air charging component with a pressure value space of at least 2 mm Hg in an equidistant increasing mode; or in the non-pulse decompression phase inside the air charging component, the display displays the pressure value or a similar value inside the air charging component with a pressure value space of at least 2 mm Hg in an equidistant decreasing mode. The invention also provides the manual electronic sphygmomanometer which can display the pressure value with longer updating time delay and effective predictable property and is convenient for an operator to read the pressure value.
Description
Technical field
The present invention relates to a kind of pressure value display method and manual electronic sphygmomanometer of manual electronic sphygmomanometer.Adopt this pressure value display method and manual electronic sphygmomanometer, the force value that is shown has long renewal time delay and effectively predictable, makes the operator be convenient to read force value.
Background technology
When measuring blood pressure, there is dual mode arm or wrist to be pressurizeed through pneumatic sleeve, a kind of is to pressurize (manual pressure) with hand air pump, a kind of is through microprocessor control motor air pump pressurize (pressurization automatically).Pneumatic sleeve is a kind of common pneumatic element, and the force value of pneumatic sleeve is meant the force value of gas in the oversleeve.Under the situation of manual pressure, the force value of the necessary close supervision pneumatic sleeve of operator, and when force value reaches target zone, stop manual pressure shut-down operation hand air pump in other words in time.The force value of electric sphygmomanometer pneumatic sleeve is normally passed through LCD or the LED form demonstration with numeral.Form with numeral shows that the height of mercury unlike traditional mercury gauge sphygmomanometer shows that kind is directly perceived and predictability is arranged.In the pressure period because the pace of change of force value is very fast, so existing manual pressure electric sphygmomanometer in the pressure period, the display update of force value is very frequent, the cycle of renewal is generally less than 0.5 second.Such display packing causes the operator to be difficult to read and monitor the force value of pneumatic sleeve.Equally, at decompression phase, the force value of demonstration is also unpredictable, and the interval of force value update displayed is very short before detecting the arterial pressure pulse.Decompression rate of pneumatic sleeve when so such display packing causes the operator to be difficult to judge decompression.
Summary of the invention
The invention provides a kind of pressure value display method and manual electronic sphygmomanometer of manual electronic sphygmomanometer; Make the operator when pressurization, be convenient to show the force value that reads gas in the pneumatic element, when decompression, be convenient to the decompression rate that the operator judges gas in the pneumatic element through LCD or LED.
The inventor does not find the pressure value display method of annual compression system of the present invention and the manual electronic sphygmomanometer that adopts this method as yet through retrieval.
To defective that exists in the prior art or deficiency, the inventor has carried out one to the people of health and has read in the rate of reading experiment that LCD goes up the integer of continuous display update, and the display update cycle of this integer is in artificial control change down.Our find through this test: have in limited time when the reading duration, when the reading on the LCD increased or reduces with equidistant value, reading can be predicted, so compare readability.We find that also reading is that 5 or 10 integral multiple is easy to read than other integers in addition, particularly the easiest reading when reading is 10 or 10 integral multiple.We find in addition, and when the reading on the LCD increased or reduces with equidistant value, the increase of reading or the speed of minimizing can be judged by intuitive ground.
The total technical conceive of the present invention is: the pressure in pneumatic element increases the stage (pressure period) or reduces the stage (pulseless decompression phase) at the pressure that does not detect pulse; Pressure display unit shows atmospheric pressure value or its approximation in the pneumatic element with the mode of equidistant increase of 2mmHg pressure value spacing or minimizing at least; Make the force value that is shown when the operator reads, have intuitive and predictable; Thereby read easily, make the operator monitor the decompression rate of pneumatic element effectively simultaneously.
Technical scheme of the present invention is following:
The pressure value display method of manual electronic sphygmomanometer; Said manual electronic sphygmomanometer comprises manual pressure air pump and connected pneumatic element; After air pressure in this pneumatic element is changed by pressure transducer; Draw the real-time pressure value through the microprocessor computing, said microprocessor connects display; It is characterized in that: pressure in pneumatic element increases the stage, and said display shows atmospheric pressure value or its approximation in the pneumatic element with 2mmHg pressure value spacing at least with the mode of equidistant increase; Perhaps, the pulseless decompression phase in pneumatic element, said display shows atmospheric pressure value or its approximation in the pneumatic element with 2mmHg pressure value spacing at least with the mode of equidistant minimizing.
When the unit that shows force value was mmHg, the pressure in pneumatic element increased the stage, and approximation is got 5 or 10 integral multiple; At the pulseless decompression phase, approximation gets 2,3,4, or 5 integral multiple.
When the unit that shows force value was mmHg, the pressure in pneumatic element increased the stage, and approximation is got 10 integral multiple; Pulseless decompression phase in pneumatic element, approximation is got 2 or 5 integral multiple.
When the unit that shows force value be kPa, in the pressure increase stage in pneumatic element, approximation was got 1 or 2 integral multiple; At the pulseless decompression phase, approximation is got 0.5 integral multiple.
Said approximation is to satisfy the integral multiple condition, near the numerical value of true pressure value in the pneumatic element.
In said pneumatic element, the pulse decompression phase arranged, when detecting the arterial pressure pulse, the atmospheric pressure value in the said pneumatic element of said display update displayed.
Manual electronic sphygmomanometer; Comprise: hand air pump, connected pneumatic element (this pneumatic element can be a pneumatic sleeve), the pressure transducer that is connected with this pneumatic element; The electronic circuit and the microprocessor that are connected with this pressure transducer, and the display that is connected with this microprocessor; It is characterized in that: pressure in pneumatic element increases the stage, and said display shows atmospheric pressure value or its approximation in the pneumatic element with 2mmHg pressure value spacing at least with the mode of equidistant increase; Perhaps, the pulseless decompression phase in pneumatic element, said display shows atmospheric pressure value or its approximation in the pneumatic element with 2mmHg pressure value spacing at least with the mode of equidistant minimizing.
Technique effect of the present invention is following:
Because the pressure value display method and the manual electronic sphygmomanometer of manual electronic sphygmomanometer of the present invention; Can carry out selectivity with good conditionsi to the air pressure of inherent pressure period of pneumatic element and pulseless decompression phase shows; Thereby make the force value that is shown have long renewal time delay and effectively predictable; Make the operator be convenient to read force value, thereby help avoid the accident that excessive pressurization causes.Make the operator can monitor the decompression rate of pneumatic element effectively simultaneously, thereby help avoid the too fast measurement error that causes of decompression rate.
Description of drawings
Fig. 1 is the structure chart of a sphygomanometer.
Fig. 2 is one and upgrades the program flow diagram that force value shows.
Fig. 3 is the sketch map that a pneumatic sleeve force value shows.
Reference numeral is listed as follows:
The 22-hand air pump, 24-pneumatic sleeve, 23-air valve, 26～pressure transducer, 28-difference amplifier; 30-analog/digital (A/D) converter, 32-microprocessor (MPU), 34-display, 42-pressure period; The 44-decompression phase, 46-pulseless decompression phase, 48-has the pulse decompression phase, 52-initialization (t=0); 54-obtains data (A/D), 56-pressure period Rule of judgment (P (t)=＞P (t-Δ T)?), the 58-approximation calculation (Pd=10 * n), the renewal of 64-pressure display (Pd-＞LCD).Is the 70-pulse signal measured (dP=P (t-Δ t)-(P (t-2 Δ t)+P (t))/2), 72-Rule of judgment (dP＞dp?), the 74-approximation calculation (Pd=1 * n), the 76-approximation calculation (Pd=2 * n),
The specific embodiment
Below in conjunction with accompanying drawing (Fig. 1-Fig. 3) the present invention is elaborated.
As shown in Figure 1, the sphygomanometer of a manual pressure includes: hand air pump 22, and air valve 23, pneumatic sleeve 24 is with 34, one measuring systems of display of LCD representative, a control system.Measuring system includes: pressure transducer 26, impedance bridge circuit normally, difference amplifier 28, analog to digital (A/D) converter 30, and microprocessor (MPU) 32.Measuring system also can comprise: with pressure transducer 26, and difference amplifier 28, A/D converter 30 is integrated in the pressure transducer on the chip, and microprocessor (MPU) 32, equally also can A/D converter 30 be integrated on the MPU 32.Control system comprises: MPU 32 and the display of being controlled by its 34.All include MPU 32 in measuring system and the control system.
When measuring blood pressure; Pressure in the pneumatic sleeve 24 produces pressure signal through pressure transducer 26; After difference amplifier 28 amplifies; Be converted into digital signal acquiring in microprocessor (MPU) 32 by analog to digital (A/D) converter 30, the digital signal of pressure carries out after the calculation process form of pressure with numerical value being shown on the display 34 through the program in the microprocessor (MPU) 32.
As shown in Figure 3, the cycle of a blood pressure measurement is divided into two stages: the pressure period 42 can further be divided into pulseless decompression phase 46 and pulse decompression phase 48 is arranged with decompression phase 44. decompression phases 44.
In the pressure period 42, microprocessor 32 shows force value or its approximation in the pneumatic sleeve 24 with the mode that the equal pressure spacing increases on display 34, like example p0 among Fig. 3, and p1, p2, p3 is shown in the p4.The equal pressure spacing can be 5mmHg, 1 kPa, and 10mmHg, perhaps 2 kPas.The starting point of pressure display is preferably 0mmHg, and like this, the force value that is shown is the integral multiple of equal pressure spacing.For example, force value or its approximation in the pneumatic sleeve 24 that shows on the display 34 can be 0mmHg, 5mmHg, and 10mmHg, 15mmHg, 20mmHg, or the like.These pressure display values are the integral multiple of equal pressure spacing 5mmHg.The equal pressure spacing is 10mmHg preferably.Like this, force value or its approximation in the pneumatic sleeve 24 that shows on the display 34 are 0mmHg, 10mmHg, and 20mmHg, 30mmHg, 40mmHg, or the like.Such show value is read by the operator the most easily.
In the pressure period 42, the force value in the pneumatic sleeve 24 that shows on the display 34 or the calculating of its approximation are accomplished by the measurement in the microprocessor 32, calculating and control sequence.The starting point that best example is a pressure display is 0mmHg, and the equal pressure spacing is 10mmHg.Hand air pump 22 as shown in Figure 1 is pushed by the operator, thereby air is pressed in the pneumatic sleeve 24.Air in hand air pump 22 is pressed in the process of pneumatic sleeve 24; In the collected microprocessor 32 of force value in the pneumatic sleeve 24; The pressure that program in the microprocessor 32 detects in the pneumatic sleeve 24 is rising; Just get into or remain on the pressure period 42; Simultaneously the principle of the pressure round off in the pneumatic sleeve that measures 24 is approximately the integral multiple of 10mmHg; Then with display 34 on the current value that shows compare, if the approximation of the pressure round offs in the pneumatic sleeve 24 after approximate increased 10mmHg than the current value that shows on the display 34, microprocessor 32 just is updated to the value that is shown on the display 34 the approximation after being similar to of rounding up of current pressure in the pneumatic sleeve 24 so.Otherwise the value that is shown on the display 34 is constant.According to the method, the every 10mmHg of the value that is shown on the display 34 upgrades once, and with the maximum error of force value in the pneumatic sleeve 24 be 5mmHg, this pressure monitoring as far as the pressure period 42 is enough accurately.
After the force value of pneumatic sleeve 24 reached the goal pressure that operator oneself wants to reach, the operator just can stop to push hand air pump 22, and blood pressure measurement gets into decompression phase.This goal pressure generally exceeds 20-40mmHg than tested person's systolic pressure or title high pressure.
At decompression phase 44, air valve as shown in Figure 1 23 is opened by the operator, thus the gas in the pneumatic sleeve 24 emitted, the pressure in the pneumatic sleeve 24 descend.When the pressure in the pneumatic sleeve 24 dropped to certain pressure, the trace routine in the microprocessor 32 can begin to detect pulse signal in the pressure signal in the pneumatic sleeve 24; When the pressure in the pneumatic sleeve 24 continues to drop to certain pressure, said pulse signal will disappear.At decompression phase 44, detecting for the first time pulse signal (shown in example p9 among Fig. 3) time period preceding and that detect for the last time behind the pulse signal (shown in example p10 among Fig. 3) is pulseless decompression phase 46.The time period that detects pulse signal (shown in example t9-t10 among Fig. 3) for pulse decompression phase 48 is arranged.At decompression phase 44, the measurement of blood pressure obtains through Ke's formula sound method or the additive method that generally uses.
At pulseless decompression phase 46, microprocessor 32 shows force value or its approximation in the pneumatic sleeve 24 with the mode that the equal pressure spacing reduces on display 34, like example p5 among Fig. 3, and p6, p7 is shown in the p8.The equal pressure spacing can be 2mmHg, 3mmHg, 0.5 kPa, 4mmHg, perhaps 5mmHg.The terminal point of pressure display is preferably 0mmHg, and like this, the force value that is shown is the integral multiple of equal pressure spacing.For example, force value or its approximation in the pneumatic sleeve 24 that shows on the display 34 can be 180mmHg, 178mmHg, and 176mmHg, 174mmHg, or the like.These pressure display values are the integral multiple of equal pressure spacing 2mmHg.The equal pressure spacing is 2mmHg or 5mmHg preferably.Like this, force value or its approximations in the pneumatic sleeve 24 that shows on the display 34 are 180mmHg, 178mmHg, 176mmHg, 174mmHg, or the like or 180mmHg, 175mmHg, 170mmHg, 165mmHg, or the like.Such show value is read by the operator the most easily.Simultaneously, owing to be that the equal pressure spacing reduces, the rate of change of the pressure in the renewal frequency of show value and the pneumatic sleeve 24 is directly proportional, and the operator can come to judge intuitively the rate of change of the pressure that pneumatic sleeve 24 is interior according to the renewal frequency of show value.This comes to judge intuitively that as the speed that the operator can descend according to the mercury column of mercury gauge sphygmomanometer the rate of change of the pressure in the pneumatic sleeve 24 is the same.
At pulseless decompression phase 46, the force value in the pneumatic sleeve 24 that shows on the display 34 or the calculating of its approximation also are to be accomplished by the measurement in the microprocessor 32, calculating and control sequence.The terminal point that best example is a pressure display is 0mmHg, and the equal pressure spacing is 2mmHg.After hand air pump 22 as shown in Figure 1 was stopped by the operator, the operator just can open air valve 23 gradually, thereby the gas in the pneumatic sleeve 24 is emitted the pressure decline in the pneumatic sleeve 24.In the pressure decline process of pneumatic sleeve 24; In the collected microprocessor 32 of force value in the pneumatic sleeve 24; The pressure that program in the microprocessor 32 detects in the pneumatic sleeve 24 is descending; But do not detect pulse; Just get into or remain on pulseless decompression phase 46; Simultaneously with the pressure in the pneumatic sleeve that measures 24 by " round up " and principle (be pressure reduce to be worth not enough equal pressure spacing half just cast out, reach or crossed the equal pressure spacing half just look pressure to reduce value be the equal pressure distance values) be approximately the integral multiple of 2mmHg, then with display 34 on the current value that shows compare; Approximation after approximate has reduced 2mmHg than the current value that shows on the display 34 if the pressure in the pneumatic sleeve 24 are by " rounding up ", and microprocessor 32 just is updated to current pressure in the pneumatic sleeve 24 with the value that is shown on the display 34 so " round up " approximation after being similar to.Otherwise the value that is shown on the display 34 is constant.According to the method, the maximum error of the force value in value that is shown on the display 34 and the pneumatic sleeve 24 is 1mmHg, and this is enough accurate as far as the pressure monitoring at pulseless decompression phase 46.
The refresh display 34 because value of going to be shown on the refresh display 34 with a same value is equal to nothing, above-mentioned method for updating relatively afterwards can be reduced at every turn all to be upgraded, and the result is the same.
Pulse decompression phase 48 is being arranged; During pulse signal in the pressure signal of the trace routine in the microprocessor 32 in detecting pneumatic sleeve 24; On display shown in Figure 1 34, show the force value in the pneumatic sleeve 24 immediately, and the value that is shown remained into detect that next pulse signal arrives or do display update when the end of pulse decompression phase is arranged again.Because people's pulse frequency is generally jumped at per minute 60 to 90, the method that this each pulse upgrades a pressure display has won 0.67 second to 1 second pressure time for reading for the operator, and the pressure of the demonstration required pressure that reads in the blood pressure measurement just.
As shown in Figure 2, the program in the microprocessor 32 of packing into comprises following key step:
A) initialization 52 comprises the demonstration of the display 34 that is updated among Fig. 1 and the time that record display device 34 upgrades.
Obtain the pressure data P (t) in the pneumatic sleeve 24 in Fig. 1 when b) obtaining data 54 and be included in current time t.
C) size of the more current pressure P (t) of Rule of judgment 56 and previous pressure P (t-Δ T), Δ T was preferably 1 second between 0.5 to 1.5 second.If P (t) is littler than P (t-Δ T), the pressure period 42 finishes so, and program gets into decompression phase 44.
D) approximation calculation 58 one of calculating are 10 integral multiples and are the approximation Pd that approaches actual value P (t) most.
E) pressure display upgrades 64 with on the display 34 of the approximation Pd update displayed that calculates in Fig. 1.
F) continuous repeating step b) to g) finish up to the pressure period that step c) is judged.
G) pulse signal measures 70 in pressure periods 42 end that step c) is judged, carries out the calculating of dP=P (t-Δ t)-(P (t-2 Δ t)+P (t))/2 behind the program entering decompression phase 44, and Δ t was preferably 0.1 second between 0.05 to 0.2 second.
H) Rule of judgment 72 compares the size of dP and dp.Dp is preferably 0.6mmHg between 0.2-1.0mmHg.If dP is greater than dp, expression detects a pulse signal so, and program will get into or remain on the pulse decompression phase 48 that has as shown in Figure 3, if dP less than dp, representes not detect pulse signal so.If in 2 seconds, do not detect pulse signal, program will get into pulseless decompression phase 46 as shown in Figure 3.
I) get into pulseless decompression phase 46 as shown in Figure 3 when program, it is 2 integral multiple and for approaching most the approximation Pd of actual value P (t) that approximation calculation 76 is calculated one, on the display 34 of update displayed in Fig. 1.
J) get into the pulse decompression phase 48 that has as shown in Figure 3 when program, it is the integral multiple of 1mmHg and for approaching most the approximation Pd of actual value P (t-Δ t) that approximation calculation 74 is calculated one, on the display 34 of update displayed in Fig. 1.
K) continuous repeating step is a) to j) finish up to blood pressure measurement
As shown in Figure 3; Approximation calculation 58; 76 to upgrade 64 purpose with pressure display be that the form with numeral shows a numerical value on display shown in Figure 1 34, and this numerical value must easy operating person reads, and enough represent the true pressure in the pneumatic sleeve as shown in Figure 1 24 accurately.Also have other easy operating person to read, and enough methods of display digit accurately, for example when the unit of numerical value was mmHg, in approximation calculation 58, the approximation of calculating can be got 5 integral multiple; When the unit of numerical value was kPa, the approximation of calculating can be got 1 or 2 integral multiple.In approximation calculation 76, when the unit of numerical value was mmHg, the approximation of calculating can be got 3,4 or 5 integral multiple; When the unit of numerical value was kPa, the approximation of calculating can be got 0.5 integral multiple.In approximation calculation 74, when the unit of numerical value was kPa, the approximation of calculating can be got 0.1 or 0.2 integral multiple.
Point out that hereby when describing this invention with illustrative scheme, this description is not to want to limit limited imaginative power.To the different transformation of illustrative scheme and the scheme of other replaceability, be conspicuous for a person skilled in the art.Therefore, final statement: as long as in essential scope of the present invention, any such transformation or alternative can be expected.
Claims (10)
1. the pressure value display method of manual electronic sphygmomanometer; Said manual electronic sphygmomanometer comprises manual pressure air pump and connected pneumatic element; After air pressure in this pneumatic element is changed by pressure transducer; Draw the real-time pressure value through the microprocessor computing, said microprocessor connects display; It is characterized in that: pressure in pneumatic element increases the stage, and said display shows real-time pressure value or its in pneumatic element approximation after approximate that rounds up with 2mmHg pressure value spacing at least with the mode of equidistant increase; Perhaps, the pulseless decompression phase in pneumatic element, said display shows real-time pressure value or its in pneumatic element approximation after approximate that rounds up with 2mmHg pressure value spacing at least with the mode of equidistant minimizing.
2. the pressure value display method of manual electronic sphygmomanometer according to claim 1 is characterized in that: when the unit that shows force value was mmHg, the pressure in pneumatic element increased the stage, and said approximation is got 5 or 10 integral multiple; At the pulseless decompression phase, said approximation gets 2,3,4, or 5 integral multiple.
3. the pressure value display method of manual electronic sphygmomanometer according to claim 1 is characterized in that: when the unit that shows force value was mmHg, the pressure in pneumatic element increased the stage, and said approximation is got 10 integral multiple; Pulseless decompression phase in pneumatic element, said approximation is got 2 or 5 integral multiple.
4. the pressure value display method of manual electronic sphygmomanometer according to claim 1 is characterized in that: when the unit that shows force value for kPa the time, the pressure in pneumatic element increases the stage, said approximation is got 1 or 2 integral multiple; At the pulseless decompression phase, said approximation is got 0.5 integral multiple.
5. the pressure value display method of manual electronic sphygmomanometer according to claim 1, it is characterized in that: said approximation is to satisfy the integral multiple condition, near the numerical value of true pressure value in the pneumatic element.
6. the pressure value display method of manual electronic sphygmomanometer according to claim 1; It is characterized in that: in said pneumatic element, the pulse decompression phase arranged; When detecting the arterial pressure pulse, the real-time pressure value in the said pneumatic element of said display update displayed.
7. manual electronic sphygmomanometer comprises: hand air pump, connected pneumatic element, the pressure transducer that is connected with this pneumatic element, the electronic circuit and the microprocessor that are connected with this pressure transducer, and the display that is connected with this microprocessor; It is characterized in that: pressure in pneumatic element increases the stage, and said display shows real-time pressure value or its in pneumatic element approximation after approximate that rounds up with 2mmHg pressure value spacing at least with the mode of equidistant increase; Perhaps, the pulseless decompression phase in pneumatic element, said display shows real-time pressure value or its in pneumatic element approximation after approximate that rounds up with 2mmHg pressure value spacing at least with the mode of equidistant minimizing.
8. manual electronic sphygmomanometer according to claim 7 is characterized in that: when the unit that shows force value was mmHg, the pressure in pneumatic element increased the stage; Said approximation is got 5 or 10 integral multiple, and at the pulseless decompression phase, said approximation gets 2; 3,4, or 5 integral multiple; Perhaps, when the unit that shows force value be kPa, in the pressure increase stage in pneumatic element, said approximation was got 1 or 2 integral multiple, and at the pulseless decompression phase, said approximation is got 0.5 integral multiple.
9. manual electronic sphygmomanometer according to claim 7 is characterized in that: said approximation is to satisfy the integral multiple condition, near the numerical value of true pressure value in the pneumatic element.
10. manual electronic sphygmomanometer according to claim 7 is characterized in that: in said pneumatic element, the pulse decompression phase arranged, and when detecting the arterial pressure pulse, the real-time pressure value value in the said pneumatic element of said display update displayed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101026605A CN101543404B (en) | 2008-03-25 | 2008-03-25 | Pressure value display method of manual electronic sphygmomanometer and manual electronic sphygmomanometer |
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| CN2008101026605A CN101543404B (en) | 2008-03-25 | 2008-03-25 | Pressure value display method of manual electronic sphygmomanometer and manual electronic sphygmomanometer |
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|---|---|---|---|---|
| US4427013A (en) * | 1981-01-29 | 1984-01-24 | C.R. Bard, Inc. | Apparatus and method for measuring blood pressure |
| US5577508A (en) * | 1995-01-13 | 1996-11-26 | Johnson & Johnson Medical, Inc. | Determination of oscillometric blood pressure by linear approximation |
| US6168567B1 (en) * | 1998-07-09 | 2001-01-02 | Accusphyg, Llc | Hybrid sphygmomanometer |
| CN2441438Y (en) * | 2000-07-21 | 2001-08-08 | 洪荣骏 | Analogue electronic sphygmomanometer |
| CN1314129A (en) * | 2000-03-16 | 2001-09-26 | 合世有限公司 | Blood pressure measurer capabl eof replacing mercury sphygmomanometer |
| CN2719221Y (en) * | 2004-05-28 | 2005-08-24 | 彭绍与 | Hemadynamometer display device |
| CN1839752A (en) * | 2005-03-29 | 2006-10-04 | 潘卫江 | Electronic blood manometer and its display method |
-
2008
- 2008-03-25 CN CN2008101026605A patent/CN101543404B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427013A (en) * | 1981-01-29 | 1984-01-24 | C.R. Bard, Inc. | Apparatus and method for measuring blood pressure |
| US5577508A (en) * | 1995-01-13 | 1996-11-26 | Johnson & Johnson Medical, Inc. | Determination of oscillometric blood pressure by linear approximation |
| US6168567B1 (en) * | 1998-07-09 | 2001-01-02 | Accusphyg, Llc | Hybrid sphygmomanometer |
| CN1314129A (en) * | 2000-03-16 | 2001-09-26 | 合世有限公司 | Blood pressure measurer capabl eof replacing mercury sphygmomanometer |
| CN2441438Y (en) * | 2000-07-21 | 2001-08-08 | 洪荣骏 | Analogue electronic sphygmomanometer |
| CN2719221Y (en) * | 2004-05-28 | 2005-08-24 | 彭绍与 | Hemadynamometer display device |
| CN1839752A (en) * | 2005-03-29 | 2006-10-04 | 潘卫江 | Electronic blood manometer and its display method |
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