CN101897580A - Device for blood pressure simultaneous measurement of limbs - Google Patents
Device for blood pressure simultaneous measurement of limbs Download PDFInfo
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- CN101897580A CN101897580A CN 201010259027 CN201010259027A CN101897580A CN 101897580 A CN101897580 A CN 101897580A CN 201010259027 CN201010259027 CN 201010259027 CN 201010259027 A CN201010259027 A CN 201010259027A CN 101897580 A CN101897580 A CN 101897580A
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Abstract
The invention provides a device for the blood pressure simultaneous measurement of limbs. The device comprises four sleeves used for measuring the limbs of a human body and is characterized in that each sleeve is connected with an air-path switching valve; a pulse detection sensor is connected between each sleeve and each air-path switching valve; each pulse detection sensor is connected with an own pulse processing circuit; four air-path switching valves are connected with a main air path on which an air pump, a step air vent valve, a main air vent valve and a pressure detection sensor are connected; the pressure detection sensor is connected with a pressure processing circuit; and four pulse processing circuits, one pressure processing circuit, four air-path switching valves, the air pump, the step air vent valve and the main air vent valve are connected with a singlechip control circuit. The device has the advantages of realizing the synchronization of time and pressure of the limbs, performing the whole measurement at the same state and improving the precision of the measurement.
Description
Technical field
The present invention relates to a kind of limb blood pressure measuring device, can judge the state of blood vessel by this device according to the result of extremity blood pressure measurement.
Background technology
Employed limb blood pressure measuring device is at one time extremity to be measured on market at present, with the time be used as synchronously measuring synchronously.In synchronous process, the measurement of extremity will be inflated the sleeve bag and exit simultaneously.But this method can't guarantee to exit the time that finishes identical, promptly the pressure of each same time of limbs is identical, causes the error of measurement easily.
Simultaneously, the pressure that existing limb blood pressure measuring device imposes on patient on the market always is far longer than the maximum pressure that patient's self-blood flows and produces, and all can produce potential unsafe factor for hypertensive patient, neonate, old people.And when excess pressure is applied to the measuring point repeatedly, can cause the elasticity of patient measuring point more and more littler, thereby cause the blood pressure indicating value more and more lower thereupon, influence the accuracy of measuring at once.
Summary of the invention
The purpose of this invention is to provide and a kind ofly compress into the device that row is measured to limb blood under can same at one time pressure condition, thereby improve the precision of measuring.
In order to achieve the above object, technical scheme of the present invention has provided a kind of device of blood pressure simultaneous measurement of limbs, comprise and be respectively applied for four oversleeves measuring human limb, it is characterized in that: each oversleeve connects an air circuit breaker valve, between oversleeve and air circuit breaker valve, be connected with a pulse detection pick off, each pulse detection pick off connects pulse treatment circuit separately respectively, four air circuit breaker valves connect main gas circuit, on main gas circuit, be connected with inflator pump, the step vent valve, total vent valve and press detection sensor, press detection sensor links to each other with the pressure treatment circuit, four road pulse treatment circuits, one tunnel pressure treatment circuit, four air circuit breaker valves, inflator pump, step vent valve and total vent valve connect single chip machine controlling circuit.
Device of the present invention uses an aerating device to inflate for whole extremity oversleeve, wait for that inflation finishes the step venting simultaneously of back extremity, carry out guaranteeing that the pressure in the extremity oversleeve is identical when the pulse oscillation intensity is measured at every turn, realized the synchronous of extremity times, pressure synchronously, whole measurement is carried out under same state, improved the precision of measuring.
Description of drawings
Fig. 1 is the device general principles figure of a kind of blood pressure simultaneous measurement of limbs of the present invention;
Fig. 2 is the pressure treatment circuit theory diagrams;
Fig. 3 is a pulse treatment circuit schematic diagram;
Fig. 4 is inflation pressure-releasing control circuit schematic diagram.
The specific embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
As shown in Figure 1, device general principles figure for a kind of blood pressure simultaneous measurement of limbs provided by the invention, comprise and be respectively applied for four oversleeves measuring human limb, each oversleeve connects an air circuit breaker valve, the i.e. first air circuit breaker valve K1, the second air circuit breaker valve K2, the 3rd air circuit breaker valve K3 and the 4th air circuit breaker valve K4.Between oversleeve and air circuit breaker valve, be connected with a pulse detection pick off, i.e. the first pulse detection pick off S1, the second pulse detection pick off S2, the 3rd pulse detection pick off S3 and the 4th pulse detection pick off S4.Each pulse detection pick off connects pulse treatment circuit separately respectively. and four air circuit breaker valves connect main gas circuit, be connected with inflator pump M, step vent valve F1, total vent valve F2 and press detection sensor S0 on main gas circuit, press detection sensor S0 links to each other with the pressure treatment circuit.Four road pulse treatment circuits, one tunnel pressure treatment circuit, four air circuit breaker valves, inflator pump M, step vent valve F1 and total vent valve F2 connect single chip machine controlling circuit.
Wherein, single-chip microcomputer uses the C8051F020 of silabs company.This chip is the execution speed of single command cycle, and bulk velocity is than standard 51 fast 12 times.Abundant interface resource is arranged, and 12 A/D of 8 passages can be set to the input of 4 tunnel difference, 11 A/D, 2 tunnel 10 DAC, 2 intervalometers.In the present invention owing to need to measure the signal of a plurality of passages, so the A/D of 8 passages is very suitable, and its fast execution speed also be in 8 similar single-chip microcomputers, bigger advantage to be arranged.System power supply is used the special-purpose Switching Power Supply of medical treatment, and power supply is the outsourcing module, and the model of Taiwan SHYNET company is the power module of SNP-Y04.Inflator pump M uses the product of NSK, and input voltage is 12V, and operating current is 500mA, and aeration quantity is 3000CC/MIN.Step vent valve F1 and total vent valve F2 use the gas bleeder valve of Xiamen border company of section, are characterized in that running voltage is low, only need the running voltage of 5V, and cost is low relatively, long working life.Four air circuit breaker valves use the two-way breather valve of NSK, and running voltage is 12V, and operating current is 300mA, and characteristics are terminals that all there is trachea at two ends, can satisfy the effect of blocking-up gas circuit in system.Pulse detection pick off and press detection sensor all use the gas pressure sensor of Japanese FUJIKURA company model as FPN-07PG, are characterized in that temperature coefficient is little, use simple, working stability.
As shown in Figure 2, for the pressure treatment circuit theory diagrams, comprise differential amplifier circuit, the cell pressure signal that is obtained by press detection sensor S0 amplifies signal by differential amplifier circuit earlier, enter low-pass filter circuit then and carry out filtering, send into single-chip microcomputer by the A/D change-over circuit at last.
Wherein, form constant-current source circuit by operational amplifier U1, resistance R 59, resistance R 69 and capacitor C 50 and provide power supply for press detection sensor S0.Differential amplifier circuit is three amplifier differential pressure amplifying circuits of a standard, its amplification is 12 times, is made up of operational amplifier U2, operational amplifier U3, operational amplifier U4, resistance R 54, resistance R 55, resistance R 56, resistance R 57, resistance R 58, resistance R 59, resistance R 60, capacitor C 53 and capacitor C 54.Low-pass filter circuit is made up of operational amplifier U5, capacitor C 55, capacitor C 56 and resistance R 62.
As shown in Figure 3, be the pulse treatment circuit schematic diagram that links to each other with x pulse detection pick off Sx, comprise differential amplifier circuit, the cell pressure signal that is obtained by the pulse detection pick off amplifies signal by the differential pressure amplifying circuit earlier, enter the AC signal amplifying circuit then, ac amplifier circuit only amplifies the pressure that changes in the cell pressure signal, and direct current signal is not amplified, and sends into single-chip microcomputer by the A/D change-over circuit at last.
Ac amplifier circuit comprises operational amplifier U3x, cross-over connection parallel resistor Rx8 and capacitor C x4 between the inverting input of operational amplifier U3x and outfan, the outfan of operational amplifier U3x connects quick reset switch RPVG by resistance R x2, parallel resistance RxC on quick reset switch RPVG, reset switch RPVG links to each other with the inverting input of operational amplifier U4x fast, cross-over connection capacitor C x5 between the inverting input of operational amplifier U4x and outfan, the outfan of operational amplifier U4x is by the in-phase input end of resistance R x9 concatenation operation amplifier U3x.When passage was in the inflation venting, reset switch RPVG connected fast, directly output is fed back to input, and be output as 0 this moment.
Wherein, the amplification of differential amplifier circuit is 100 times, is made up of operational amplifier U1x, operational amplifier U2x, resistance R x3, resistance R x4, resistance R x5, resistance R x13, resistance R x7 and resistance R x6.
As shown in Figure 4, be inflation pressure-releasing control circuit schematic diagram, the outfan of single-chip microcomputer is connected with optical coupling isolator U6, optical coupling isolator U6 leads to four outfans, wherein two outfans drive described step vent valve F1 and total vent valve F2 by an audion (i.e. audion Q1 among the figure and audion Q2) respectively, one of them outfan drives described inflator pump M by a metal-oxide-semiconductor, a remaining outfan drives described four air circuit breaker valves by a metal-oxide-semiconductor, i.e. the first air circuit breaker valve K1, the second air circuit breaker valve K2, the 3rd air circuit breaker valve K3 and the 4th air circuit breaker valve K4.Wherein, metal-oxide-semiconductor is the metal-oxide-semiconductor of N raceway groove.
Claims (5)
1. the device of a blood pressure simultaneous measurement of limbs, comprise and be respectively applied for four oversleeves measuring human limb, it is characterized in that, each oversleeve connects an air circuit breaker valve, between oversleeve and air circuit breaker valve, be connected with a pulse detection pick off, each pulse detection pick off connects pulse treatment circuit separately respectively, four air circuit breaker valves connect main gas circuit, on main gas circuit, be connected with inflator pump (M), step vent valve (F1), total vent valve (F2) and press detection sensor (S0), press detection sensor (S0) links to each other with the pressure treatment circuit, four road pulse treatment circuits, one tunnel pressure treatment circuit, four air circuit breaker valves, inflator pump (M), step vent valve (F1) and total vent valve (F2) connect single chip machine controlling circuit.
2. the device of a kind of blood pressure simultaneous measurement of limbs as claimed in claim 1, it is characterized in that, described pulse treatment circuit comprises differential amplifier circuit, the cell pressure signal that is obtained by the pulse detection pick off amplifies signal by the differential pressure amplifying circuit earlier, enter the AC signal amplifying circuit then, ac amplifier circuit only amplifies the pressure that changes in the cell pressure signal, and direct current signal is not amplified, and extracts the pulse variable signal by single chip machine controlling circuit at last.
3. the device of a kind of blood pressure simultaneous measurement of limbs as claimed in claim 2, it is characterized in that, described ac amplifier circuit comprises operational amplifier U3x, cross-over connection parallel resistor Rx8 and capacitor C x4 between the inverting input of operational amplifier U3x and outfan, the outfan of operational amplifier U3x connects quick reset switch (RPVG) by resistance R x2, go up parallel resistance RxC at quick reset switch (RPVG), reset switch (RPVG) links to each other with the inverting input of operational amplifier U4x fast, cross-over connection capacitor C x5 between the inverting input of operational amplifier U4x and outfan, the outfan of operational amplifier U4x is by the in-phase input end of resistance R x9 concatenation operation amplifier U3x.
4. the device of a kind of blood pressure simultaneous measurement of limbs as claimed in claim 1, it is characterized in that, described pressure treatment circuit comprises differential amplifier circuit, the cell pressure signal that is obtained by press detection sensor (S0) amplifies signal by differential amplifier circuit earlier, enter low-pass filter circuit then and carry out filtering, extract pressure data by single chip machine controlling circuit at last.
5. the device of a kind of blood pressure simultaneous measurement of limbs as claimed in claim 1, it is characterized in that, described single chip machine controlling circuit comprises single-chip microcomputer, the outfan of single-chip microcomputer is connected with optical coupling isolator (U6), optical coupling isolator (U6) leads to four outfans, wherein two outfans drive described step vent valve (F1) and total vent valve (F2) by an audion respectively, one of them outfan drives described inflator pump (M) by a metal-oxide-semiconductor, and a remaining outfan drives described four air circuit breaker valves by a metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010259027 CN101897580A (en) | 2010-08-17 | 2010-08-17 | Device for blood pressure simultaneous measurement of limbs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010259027 CN101897580A (en) | 2010-08-17 | 2010-08-17 | Device for blood pressure simultaneous measurement of limbs |
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| CN101897580A true CN101897580A (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010259027 Pending CN101897580A (en) | 2010-08-17 | 2010-08-17 | Device for blood pressure simultaneous measurement of limbs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618527A (en) * | 2016-11-24 | 2017-05-10 | 深圳市奕天博创科技有限公司 | Monitoring device and method for remote detection of human vital signs |
| CN112220469A (en) * | 2020-09-18 | 2021-01-15 | 上海市浦东医院（复旦大学附属浦东医院） | Cardiovascular blood pressure state real-time monitoring equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429107Y (en) * | 2000-07-12 | 2001-05-09 | 无锡市中健科仪有限公司 | Electronic sphygmomanometer with sectional aerator |
| US20020133082A1 (en) * | 2001-03-15 | 2002-09-19 | Colin Corporation | Superior-and -inferior-limb blood-pressure index measuring apparatus |
| CN1237936C (en) * | 2003-07-07 | 2006-01-25 | 深圳迈瑞生物医疗电子股份有限公司 | Electronic device for measuring blood-pressure |
| US20060052714A1 (en) * | 2004-09-07 | 2006-03-09 | Biomedix, Inc. | Vascular testing system |
| JP2007289542A (en) * | 2006-04-27 | 2007-11-08 | Medical Link:Kk | System for arterial stenosis diagnosis |
-
2010
- 2010-08-17 CN CN 201010259027 patent/CN101897580A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429107Y (en) * | 2000-07-12 | 2001-05-09 | 无锡市中健科仪有限公司 | Electronic sphygmomanometer with sectional aerator |
| US20020133082A1 (en) * | 2001-03-15 | 2002-09-19 | Colin Corporation | Superior-and -inferior-limb blood-pressure index measuring apparatus |
| CN1237936C (en) * | 2003-07-07 | 2006-01-25 | 深圳迈瑞生物医疗电子股份有限公司 | Electronic device for measuring blood-pressure |
| US20060052714A1 (en) * | 2004-09-07 | 2006-03-09 | Biomedix, Inc. | Vascular testing system |
| JP2007289542A (en) * | 2006-04-27 | 2007-11-08 | Medical Link:Kk | System for arterial stenosis diagnosis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618527A (en) * | 2016-11-24 | 2017-05-10 | 深圳市奕天博创科技有限公司 | Monitoring device and method for remote detection of human vital signs |
| CN112220469A (en) * | 2020-09-18 | 2021-01-15 | 上海市浦东医院（复旦大学附属浦东医院） | Cardiovascular blood pressure state real-time monitoring equipment |
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Open date: 20101201 |