CN101884529A - Electronic sphygmomanometer and calibration method thereof - Google Patents
Electronic sphygmomanometer and calibration method thereof Download PDFInfo
- Publication number
- CN101884529A CN101884529A CN2009101069677A CN200910106967A CN101884529A CN 101884529 A CN101884529 A CN 101884529A CN 2009101069677 A CN2009101069677 A CN 2009101069677A CN 200910106967 A CN200910106967 A CN 200910106967A CN 101884529 A CN101884529 A CN 101884529A
- Authority
- CN
- China
- Prior art keywords
- analog
- digital converter
- gain amplifier
- programmable gain
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000036772 blood pressure Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000035487 diastolic blood pressure Effects 0.000 claims abstract description 8
- 230000035488 systolic blood pressure Effects 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000036581 peripheral resistance Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- YBIDYTOJOXKBLO-USLOAXSXSA-N (4-nitrophenyl)methyl (5r,6s)-6-[(1r)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylate Chemical compound C([C@@H]1[C@H](C(N11)=O)[C@H](O)C)C(=O)C1C(=O)OCC1=CC=C([N+]([O-])=O)C=C1 YBIDYTOJOXKBLO-USLOAXSXSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- 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
- A61B5/02255—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 the pressure being controlled by plethysmographic signals, e.g. derived from optical sensors
-
- 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- 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
- A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric method
Abstract
The invention discloses an electronic sphygmomanometer, which comprises a pressure sensor, a display screen and a signal processing circuit, wherein the pressure sensor converts pressure signals inside a sleeve strap into electric signals, and a systolic pressure, a diastolic pressure and an average blood pressure are displayed on a display screen after the signal processing circuit processes the electrical signals; and the signal processing circuit comprises a programmable gain amplifier, a bandpass filter, an analog-to-digital converter and an MCU (Microprogrammed Control Unit), wherein the programmable gain amplifier, the bandpass filter, the analog-to-digital converter, the MCU and a driving circuit of the display screen are integrated into an SoC (System on Chip). The electronic sphygmomanometer has simple circuit, low cost and good stability. The invention also relates to a calibration method of the electronic sphygmomanometer, which is realized by parameter setting inside the SoC and can be automatically completed by the control of a program, therefore calibration working procedures are greatly simplified and a product subjected to calibration is free from the influence of vibrations in a transportation process and has good stability.
Description
Technical field
The present invention relates to sphygomanometer, particularly electric sphygmomanometer and automatic calibration method thereof.
Background technology
The most oscillographic methods that adopt of noinvasive electric sphygmomanometer and Blood pressure monitor, oscillographic method blood pressure measurement control hardware (PCBA) mainly comprise pressure transducer, constant-current source, amplification and wave filter, button, pump several sections such as valve driving, demonstration.With the blood pressure lowering method of testing is example, in deflation course, pressure transducer is the signal of telecommunication with cuff internal pressure conversion of signals, and the signal of telecommunication obtains the pulse pressure Reeb of parabola envelope by wave filter, goes out systolic pressure (SBP), diastolic pressure (DBP) and mean blood pressure (MAP) by the blood pressure algorithm computation at last.
At present, electric sphygmomanometer all is to adopt the separation assembly combination to realize circuit complexity, cost height.They are realized debugging by potentiometer and demarcate, troublesome poeration, and also potentiometer is subjected to vibration easily to change poor stability in transportation.
Summary of the invention
The purpose of this invention is to provide that a kind of peripheral circuit is simple, cost is low, the electric sphygmomanometer of good stability and scaling method thereof.
Electric sphygmomanometer of the present invention comprises pressure transducer, display screen and signal processing circuit, pressure transducer is the signal of telecommunication with cuff internal pressure conversion of signals, after handling, signal processing circuit on display screen, shows systolic pressure, diastolic pressure and mean blood pressure, it is characterized in that: described signal processing circuit comprises that the output signal that is used for pressure transducer is scaled to the programmable gain amplifier that the input range with analog-digital converter is complementary, be used for extracting the band filter of pulse signal from the output of programmable gain amplifier, the analog signal conversion that is used for band filter and programmable gain amplifier output is the analog-digital converter of digital signal, and according to the calculated signals systolic pressure of analog-digital converter output, the MCU of diastolic pressure and mean blood pressure, described programmable gain amplifier, band filter, analog-digital converter, the drive circuit of MCU and described display screen is integrated in a SoC (the System on a Chip) chip.
Further also can be in described MCU embedded digital filter, disturb influence with the power frequency of filtering 50Hz to pulse signal.
Further can will provide the real-time clock module of clock signal to be integrated in the described SoC chip for MCU and analog-digital converter.
The present invention also provides a kind of electronic blood pressure meter calibration method, and this method can realize by Automatic Program, specifically may further comprise the steps:
A, an experience gain parameter and offset parameter are set to programmable gain amplifier;
B, to make pressure transducer stressed be 0, whether the output that MCU changes the offset parameter of programmable gain amplifier and detects analog-digital converter is in suitable zero point in the code value scope, carry out demarcating in advance zero point, make programmable gain amplifier obtain offset parameter accurately;
C, make pressure transducer stressed for the maximum of sphygomanometer range, MCU change programmable gain amplifier gain parameter and and the output that detects analog-digital converter whether in suitable full width of cloth point in the code value scope, carry out full width of cloth point and demarcate, make programmable gain amplifier obtain gain parameter accurately;
D, to make pick off stressed be 0, and MCU gathers analog-digital converter interior code value and the storage of this moment, finishes Zero calibration; And
E, make pick off stressed for designated value, MCU gathers the interior code value and the storage of analog-digital converter correspondence, finishes intermediate point and demarcates.
The present invention is integrated in programmable gain amplifier (PGA), wave filter, analog-digital converter (ADC), MCU, LCD drive circuit etc. in the SoC chip, whole electric sphygmomanometer circuit only is made up of a SoC chip, pressure transducer and a spot of peripheral Resistor-Capacitor Unit, simplified peripheral circuit greatly, reduced the hardware spending, thereby can enhance productivity greatly, reduce production costs.
It is in SoC inner built-in programmable gain and offset parameter setting, personal settings are carried out in range and biasing at each pressure transducer, the range ability of ADC is performed to best, greatly improved the service efficiency of ADC, avoid the waste of ADC, further reach the purpose that reduces production costs.
Its system calibrating and debugging are provided with realization by the parameter in the SoC, can be finished automatically by programme-control, have simplified the demarcation operation greatly, and the product after having demarcated can not be subjected to the influence vibrated in the transportation, good stability.
Description of drawings
Fig. 1 is the schematic diagram of this electric sphygmomanometer;
Fig. 2 is the schematic diagram of programmable gain amplifier among Fig. 1;
Fig. 3 is the schematic diagram of band filter among Fig. 1;
Fig. 4 a is the oscillogram of the pressure signal of the PGA output that records in the experiment;
Fig. 4 b is the oscillogram of the pulse signal of the band filter output that records in the experiment;
Fig. 5 a-c is the sketch map of system calibrating process, wherein is to demarcate in advance zero point shown in a, is that full width of cloth point is demarcated shown in the b, is that zero point and intermediate point are demarcated shown in the c.
The specific embodiment
With reference to Fig. 1, this electric sphygmomanometer comprises pressure transducer 2, display screen 3 and signal processing circuit 1, pressure transducer 2 is the signal of telecommunication with cuff internal pressure conversion of signals, after handling, signal processing circuit 1 on display screen 3, shows systolic pressure, diastolic pressure and mean blood pressure, described signal processing circuit 1 comprises that the output signal that is used for pressure transducer 2 is scaled to the programmable gain amplifier (PGA) 11 that the input range with analog-digital converter 13 is complementary, be used for extracting the band filter 12 of pulse signal from the output of programmable gain amplifier 11, the analog signal conversion that is used for band filter 12 and programmable gain amplifier 11 outputs is the analog-digital converter (ADC) 13 of digital signal, and according to the calculated signals systolic pressure of analog-digital converter output, the MCU 14 of diastolic pressure and mean blood pressure, described programmable gain amplifier 11, band filter 12, analog-digital converter 13, the drive circuit 15 of MCU 14 and described display screen 3 is integrated in the SoC chip.
PWM0 is the driving signal of compression pump among Fig. 1, is used for the controlled pressure pump and inflates in cuff.PWM1 is the driving signal of air bleeding valve, is used to drive air bleeding valve work, the discharge of gas in the control cuff.
With reference to Fig. 1,3, band filter 12 is made of two amplifier OP2, OP3 and peripheral resistance R 1-R12, capacitor C 1-C5, and its bandwidth is 10Hz-500Hz.One outfan of band filter 12 input termination programmable gain amplifiers 11, the input channel AN2 of band filter 12 output termination analog-digital converters 13.The pressure signal of programmable gain amplifier 11 output obtains pulse signal after by band filter 12 filtering.Thereby obtained the needed two paths of signals of oscillographic method blood pressure measurement: pressure signal and pulse signal.It shown in Fig. 4 a the waveform of the pressure signal of the programmable gain amplifier that records 11 outputs in the experiment, be the waveform of Fig. 4 a pressure signal through band filter 12 filtered pulse signals shown in Fig. 4 b, the gatherer process of signal is that detected pressures and pulse signal are example during with cuff deflation.
The power frequency that is directed to 50Hz is disturbed, front end has passed through low-pass filtering treatment on hardware circuit, as not suppressing fully, in application, will influence the affirmation of system to the pulse peak value, therefore among the present invention in MCU14 embedded digital filter, realize the influence of the power frequency interference of filtering 50Hz by certain algorithm, to improve the certainty of measurement of sphygomanometer to pulse signal.
SoC chip built-in real-time clock (RTC) module is for MCU and analog-digital converter provide clock signal.In addition, this electric sphygmomanometer is provided with battery saving mode, and the built-in wake-up circuit of SoC can be used for closing the DC/DC device under the battery saving mode.
Because the inherent characteristic of semi-conducting material, the following problem of pressure transducer ubiquity: I. consistency problem: even same series-produced pick off, its characteristic also has bigger discreteness, in order to ensure enough degree of accuracy, must proofread and correct each pick off.II. temperature drift problem: semi-conducting material is very sensitive to variations in temperature, and 1mmHg/10 ℃ of actual test must take certain measure that the temperature drift of pick off is compensated.III. time drift problem: the actual measuring semiconductor material phenomenon of wafing sometimes, kind had 3mmHg in one minute.Generally speaking, test process can be above 40 seconds.Electric sphygmomanometer of the present invention adopts start return-to-zero mode (will carry out zero migration earlier during the pressure transducer start proofreaies and correct), can effectively solve the drift problem.
For the discreteness problem of pick off, electric sphygmomanometer of the present invention is by realizing correction to pick off to the gain parameter of built-in programmable gain amplifier and offset parameter adjustment in the system calibrating process.The demarcation of sphygomanometer can realize that with reference to Fig. 5 a-c, concrete scaling method may further comprise the steps successively by Automatic Program:
A, an experience gain parameter and offset parameter are set to programmable gain amplifier;
B, to make pressure transducer stressed be 0, whether the output that MCU changes the offset parameter of programmable gain amplifier and detects analog-digital converter is in suitable zero point in the code value scope, carry out demarcating in advance zero point, make programmable gain amplifier obtain offset parameter accurately;
C, make pressure transducer stressed for the maximum of sphygomanometer range, whether the output that MCU changes the gain parameter of programmable gain amplifier and detects analog-digital converter is in suitable full width of cloth point in the code value scope, carry out full width of cloth point and demarcate, make programmable gain amplifier obtain gain parameter accurately;
D, to make pick off stressed be 0, and MCU gathers analog-digital converter interior code value and the storage of this moment, finishes Zero calibration; And
E, make pick off stressed for designated value, MCU gathers the interior code value and the storage of analog-digital converter correspondence, finishes intermediate point and demarcates.
Among the above-mentioned steps b, code value is 2 in described zero point
nX 1/8, and wherein n is the figure place of analog-digital converter, when the output of analog-digital converter near 2
nDuring x 1/8, the offset parameter of this moment is decided to be the accurate offset parameter of programmable gain amplifier.
Among the above-mentioned steps c, code value is 2 in the described full width of cloth point
nX7/8, wherein n is the figure place of analog-digital converter, when the output of analog-digital converter near 2
nDuring x7/8, the gain parameter of this moment is decided to be the accurate gain parameter of programmable gain amplifier.
Described demarcation is meant the interior code value of the pairing ADC of fixing point pressure of record pressure transducer, and the purpose of demarcation is can calculate actual pressure by code value in the gained for MCU in measuring process.The selection of concrete fixed point is decided on the pressure transducer linear characteristic.
Claims (8)
1. electric sphygmomanometer, comprise pressure transducer, display screen and signal processing circuit, pressure transducer is the signal of telecommunication with cuff internal pressure conversion of signals, after handling, signal processing circuit on display screen, shows systolic pressure, diastolic pressure and mean blood pressure, it is characterized in that: described signal processing circuit comprises that the output signal that is used for pressure transducer is scaled to the programmable gain amplifier that the input range with analog-digital converter is complementary, be used for extracting the band filter of pulse signal from the output of programmable gain amplifier, the analog signal conversion that is used for band filter and programmable gain amplifier output is the analog-digital converter of digital signal, and according to the calculated signals systolic pressure of analog-digital converter output, the MCU of diastolic pressure and mean blood pressure, described programmable gain amplifier, band filter, analog-digital converter, the drive circuit of MCU and described display screen is integrated in the SoC chip.
2. electric sphygmomanometer as claimed in claim 1 is characterized in that: described pressure transducer adopts constant-current source to drive, and described constant-current source is made of amplifier and resistance, and the amplifier that constitutes constant-current source is integrated in the described SoC chip.
3. electric sphygmomanometer as claimed in claim 1 is characterized in that: described band filter is made of two amplifiers and peripheral resistance, electric capacity, and its bandwidth is 10Hz-500Hz.
4. electric sphygmomanometer as claimed in claim 1 is characterized in that: described MCU embedded digital filter, disturb influence with the power frequency of filtering 50Hz to pulse signal.
5. electric sphygmomanometer as claimed in claim 1 is characterized in that: for MCU and analog-digital converter provide the real-time clock module of clock signal to be integrated in the described SoC chip.
6. electronic blood pressure meter calibration method is characterized in that may further comprise the steps successively:
A, an experience gain parameter and offset parameter are set to programmable gain amplifier;
B, to make pressure transducer stressed be 0, whether the output that MCU changes the offset parameter of programmable gain amplifier and detects analog-digital converter is in suitable zero point in the code value scope, carry out demarcating in advance zero point, make programmable gain amplifier obtain offset parameter accurately;
C, make pressure transducer stressed for the maximum of sphygomanometer range, whether the output that MCU changes the gain parameter of programmable gain amplifier and detects analog-digital converter is in suitable full width of cloth point in the code value scope, carry out full width of cloth point and demarcate, make programmable gain amplifier obtain gain parameter accurately;
D, to make pick off stressed be 0, and MCU gathers analog-digital converter interior code value and the storage of this moment, finishes Zero calibration;
E, make pick off stressed for designated value, MCU gathers the interior code value and the storage of analog-digital converter correspondence, finishes intermediate point and demarcates.
7. electronic blood pressure meter calibration method as claimed in claim 6 is characterized in that: code value is 2 in zero point described in the step b
nX 1/8, and wherein n is the figure place of analog-digital converter, when the output of analog-digital converter near 2
nDuring x 1/8, the offset parameter of this moment is decided to be the accurate offset parameter of programmable gain amplifier.
8. electronic blood pressure meter calibration method as claimed in claim 6 is characterized in that: the interior code value of full width of cloth point described in the step c is 2
nX7/8, wherein n is the figure place of analog-digital converter, when the output of analog-digital converter near 2
nDuring x7/8, the gain parameter of this moment is decided to be the accurate gain parameter of programmable gain amplifier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101069677A CN101884529B (en) | 2009-05-15 | 2009-05-15 | Electronic sphygmomanometer and calibration method thereof |
| PCT/CN2010/072573 WO2010130189A1 (en) | 2009-05-15 | 2010-05-10 | Electronic sphygmomanometer and its calibrating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101069677A CN101884529B (en) | 2009-05-15 | 2009-05-15 | Electronic sphygmomanometer and calibration method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101884529A true CN101884529A (en) | 2010-11-17 |
| CN101884529B CN101884529B (en) | 2012-03-21 |
Family
ID=43070742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101069677A Active CN101884529B (en) | 2009-05-15 | 2009-05-15 | Electronic sphygmomanometer and calibration method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101884529B (en) |
| WO (1) | WO2010130189A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102048527A (en) * | 2010-12-06 | 2011-05-11 | 中颖电子股份有限公司 | Electronic sphygmomanometer circuit |
| CN102062668A (en) * | 2010-12-06 | 2011-05-18 | 中颖电子股份有限公司 | Pressure sensor system calibrating circuit and method |
| CN102160780A (en) * | 2011-03-21 | 2011-08-24 | 深圳市理邦精密仪器股份有限公司 | Method and device for improving accuracy of non-invasive blood pressure (NIBP) measurement |
| CN103251399A (en) * | 2012-02-16 | 2013-08-21 | 罗万前 | Calibration method of electronic sphygmomanometer and calibrator |
| CN103735258A (en) * | 2014-01-13 | 2014-04-23 | 深圳市达吉隆实业发展有限公司 | Wireless multi-mode electronic sphygmomanometer |
| CN104720775A (en) * | 2013-12-22 | 2015-06-24 | 江苏鹿得医疗电子股份有限公司 | Electronic hematomanometer with automatic correcting function |
| EP2554194A4 (en) * | 2010-03-31 | 2015-12-02 | Terumo Corp | Integrated circuit and medical device using the same |
| CN107045101A (en) * | 2017-04-06 | 2017-08-15 | 天津普仁万合信息技术有限公司 | A kind of apparatus and method that accuracy detection is carried out to blood pressure measurement chip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768530A (en) * | 2017-02-17 | 2017-05-31 | 安图实验仪器(郑州)有限公司 | Pressure detecting system based on gain-programmed amplifier |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189903Y (en) * | 1994-05-17 | 1995-02-22 | 周国方 | Electronic mercury sphygmomanometer |
| US6358212B1 (en) * | 1998-04-20 | 2002-03-19 | Matsushita Electric Industrial Co., Ltd. | Noninvasive continuous blood pressure measuring apparatus and a method of noninvasively measuring continuous blood pressure |
| JP2000333916A (en) * | 1999-05-31 | 2000-12-05 | Matsushita Electric Ind Co Ltd | Sphygmomanometer |
| JP2004024551A (en) * | 2002-06-26 | 2004-01-29 | Renesas Technology Corp | Semiconductor device for sensor system |
| KR100467056B1 (en) * | 2002-08-31 | 2005-01-24 | (주)유인바이오테크 | Automatic blood pressure measuring instrument and method |
| US20080287813A1 (en) * | 2004-03-30 | 2008-11-20 | Eidgenossische Technische Hochschule Zurich | Blood Pressure Monitoring Device and Methods for Making and for Using Such a Device |
| JP4668651B2 (en) * | 2005-03-16 | 2011-04-13 | フクダ電子株式会社 | Sphygmomanometer |
| CN2910109Y (en) * | 2005-12-14 | 2007-06-13 | 李哲英 | Electronic sphygmomanometer base on wave-shaped characteristic for identification |
| CN201404212Y (en) * | 2009-05-15 | 2010-02-17 | 深圳市鑫汇科科技有限公司 | Electronic blood-pressure meter |
-
2009
- 2009-05-15 CN CN2009101069677A patent/CN101884529B/en active Active
-
2010
- 2010-05-10 WO PCT/CN2010/072573 patent/WO2010130189A1/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2554194A4 (en) * | 2010-03-31 | 2015-12-02 | Terumo Corp | Integrated circuit and medical device using the same |
| CN102048527A (en) * | 2010-12-06 | 2011-05-11 | 中颖电子股份有限公司 | Electronic sphygmomanometer circuit |
| CN102062668A (en) * | 2010-12-06 | 2011-05-18 | 中颖电子股份有限公司 | Pressure sensor system calibrating circuit and method |
| CN102160780A (en) * | 2011-03-21 | 2011-08-24 | 深圳市理邦精密仪器股份有限公司 | Method and device for improving accuracy of non-invasive blood pressure (NIBP) measurement |
| CN102160780B (en) * | 2011-03-21 | 2013-06-12 | 深圳市理邦精密仪器股份有限公司 | Method and device for improving accuracy of non-invasive blood pressure (NIBP) measurement |
| CN103251399A (en) * | 2012-02-16 | 2013-08-21 | 罗万前 | Calibration method of electronic sphygmomanometer and calibrator |
| CN104720775A (en) * | 2013-12-22 | 2015-06-24 | 江苏鹿得医疗电子股份有限公司 | Electronic hematomanometer with automatic correcting function |
| CN103735258A (en) * | 2014-01-13 | 2014-04-23 | 深圳市达吉隆实业发展有限公司 | Wireless multi-mode electronic sphygmomanometer |
| CN107045101A (en) * | 2017-04-06 | 2017-08-15 | 天津普仁万合信息技术有限公司 | A kind of apparatus and method that accuracy detection is carried out to blood pressure measurement chip |
| CN107045101B (en) * | 2017-04-06 | 2023-10-13 | 天津普仁万合信息技术有限公司 | Device and method for detecting accuracy of blood pressure measurement chip |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010130189A1 (en) | 2010-11-18 |
| CN101884529B (en) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101884529B (en) | Electronic sphygmomanometer and calibration method thereof | |
| US10729338B2 (en) | Blood pressure measurement device and calibration method thereof | |
| US5089979A (en) | Apparatus for digital calibration of detachable transducers | |
| CN101006918A (en) | Integrated test-equipment of blood pressure, pulse and electrocardiograms | |
| US8808189B2 (en) | Blood pressure measurement device including cuff to be wrapped around measurement site | |
| US20110251817A1 (en) | Method and apparatus to determine impedance variations in a skin/electrode interface | |
| EP2522962A1 (en) | Method and apparatus for increasing the effective resolution of a sensor | |
| CN102160780B (en) | Method and device for improving accuracy of non-invasive blood pressure (NIBP) measurement | |
| US20050143961A1 (en) | Universal power measurement SoC and measuring method | |
| CN113489466B (en) | Circuit for eliminating signal offset of charge amplifier | |
| CN201404212Y (en) | Electronic blood-pressure meter | |
| CN103961079B (en) | A kind of inflation/deflation method and system for blood pressure measurement | |
| CN110006585A (en) | A kind of data acquisition device and method of pressure sensor | |
| CN105615859A (en) | Auxiliary device for blood pressure measurement, blood pressure measurement equipment and design method of blood pressure measurement equipment | |
| CN110301907A (en) | A kind of wearable pulse wave detection device and blood pressure detecting method | |
| CN103381092A (en) | Method and device for acquiring interference signals of non-invasive blood pressure measurement | |
| CN105193401A (en) | High-precision arm-type electronic sphygmomanometer and detection method thereof | |
| CN110720902B (en) | Blood pressure measuring method and sphygmomanometer | |
| CN112798881A (en) | Device and method for measuring parameters of piezoelectric ultrasonic transducer | |
| US4607641A (en) | Electronic sphygmomanometer | |
| CN104267262A (en) | High-precision intelligent loop resistance tester | |
| CN203828915U (en) | Device for measuring blood pressure | |
| CN205197978U (en) | Individuation blood pressure does not have wound detection device | |
| CN212258938U (en) | Signal acquisition circuit | |
| CN102499661A (en) | Highly integrated electronic sphygmomanometer circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CHK ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHENZHEN CHK TECHNOLOGY CO., LTD. Effective date: 20130826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130826 Address after: Post office building Baoan District 13 Baomin Shenzhen city Guangdong province 518101 Road 27 layer Patentee after: Shenzhen CHK Electronics Co., Ltd. Address before: Post office building Baoan District 13 Baomin Shenzhen city Guangdong province 518101 Road 27 layer Patentee before: Shenzhen CHK Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN XINHUI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN CHK ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Post office building Baoan District 13 Baomin Shenzhen city Guangdong province 518101 Road 27 layer Patentee after: Xin Huike limited company of Shenzhen Address before: Post office building Baoan District 13 Baomin Shenzhen city Guangdong province 518101 Road 27 layer Patentee before: Shenzhen CHK Electronics Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: 518133 B building, No. 7 down mountain road, Fuyong street, Shenzhen, Guangdong, Baoan District, China Patentee after: Xin Huike limited company of Shenzhen Address before: Post office building Baoan District 13 Baomin Shenzhen city Guangdong province 518101 Road 27 layer Patentee before: Xin Huike limited company of Shenzhen |
|
| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190719 Address after: 518000 Guangdong Province Baoan District Fuhai Street Bridgehead Community Tongtai Headquarters Industrial Park Factory Building 4 Tongtai Times Center 809 Patentee after: Shenzhen Xinzhi Technology Co., Ltd. Address before: 518133 Building 7 B, Lingxia Road, Fuyong Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: Xin Huike limited company of Shenzhen |
|
| TR01 | Transfer of patent right |