CN105342592B - It is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer - Google Patents
It is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer Download PDFInfo
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- CN105342592B CN105342592B CN201510843698.8A CN201510843698A CN105342592B CN 105342592 B CN105342592 B CN 105342592B CN 201510843698 A CN201510843698 A CN 201510843698A CN 105342592 B CN105342592 B CN 105342592B
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Abstract
The present invention relates to it is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer, the electronic sphygmomanometer includes microprocessor, memory, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem, and the memory, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem are connected with microprocessor.When user thinks that current measurement value may be not accurate, automatic calibration mode can be started, electronic sphygmomanometer can calibrate zero point and full scale automatically, carry out the measurement of blood pressure after the completion of calibration again, greatly improve the degree of accuracy and the confidence level of blood-pressure measurement data.
Description
Technical field
The present invention relates to a kind of electronic sphygmomanometer, and in particular to it is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer, category
In technical field of medical instruments.
Background technology
Currently, as the improvement of people's living standards, the probability that people suffer from hypertension greatly increases.Electronic sphygmomanometer is relative
For tradition machinery sphygmomanometer, operation is simpler, it is not necessary to which professional doctor is operated, and can complete blood at home by user
The measurement of pressure, so increasing family selection purchase electronic sphygmomanometer.Bought electronic sphygmomanometer nor put things right once and for all
Thing, wherein the most worryingly accurate problem of sphygmomanometer measurement.Although every sphygmomanometer all have passed through strictly before dispatching from the factory
Calibration, but with the increase of access times and service life, zero point and full scale skew can be produced and cause measured value deviation；
Or even because the influence of working environment causes that Data within the chip is tampered or even measured value caused by losing is insincere.This
When, product need to be sent back to factory and be calibrated or buy sphygmomanometer again by user, Consumer's Experience is deteriorated.As a rule, electronics
Sphygmomanometer is after dispatching from the factory, and if user is proper use of, can provide the user accurately blood pressure number for a comparatively long period of time
According to.But electronic measuring instrument is because its special measuring principle is required for carrying out periodic calibration, electronic sphygmomanometer also not example
Outside.With the increase of access times and the time limit, electronic sphygmomanometer precision declines；Or due to special use environment, it is such as high
Warm high humidity or strong-electromagnetic field, FLASH chip data inside sphygmomanometer are caused to be tampered or lose, measured value will be insincere.
Patent 200520142690.0 proposes a kind of electronic sphygmomanometer with prompting calibration function, and it passes through loading
Electronic sphygmomanometer service life/number preset value, judge currently whether already exceed preset value using software, carried out if more than if
Alarm, remind user to send electronic sphygmomanometer back to genuine and overhauled or corrected.It has been concerned about electronic sphygmomanometer for a long time
Need to improve precision by calibrating after use, but not providing one kind really thoroughly can allow user to complete electronics at home
The calibration of sphygmomanometer, and during sphygmomanometer censorship, user, which can not be in, carries out the measurement of blood pressure.Therefore, there is an urgent need to one
The electronic sphygmomanometer of kind automatically calibrating.
The content of the invention
The present invention is exactly for technical problem present in prior art, there is provided it is a kind of can automatic zero adjustment and full scale electronics
Sphygmomanometer, the apparatus structure is ingenious in design, measurement accuracy that is compact-sized, substantially increasing sphygmomanometer.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is as follows：It is a kind of can automatic zero adjustment and full scale
Electronic sphygmomanometer, it is characterised in that the electronic sphygmomanometer includes microprocessor, memory, pressure sensing cell, pump valve control
Unit, key-press input unit, display unit and power subsystem, the memory, pressure sensing cell, pump valve control unit,
Key-press input unit, display unit and power subsystem are connected with microprocessor.The microprocessor refers to be performed with order
The single-chip microcomputer of function；The memory is non-volatile ROM, and for storing pressure parameter etc., it can be integrated in microprocessor
Portion；The core component of the pressure sensing cell can be the common simulation pressure sensor built by Wheatstone bridge, also may be used
To be digital pressure sensor；Pump valve control unit is to amplify microprocessor control signals for controlling air pump and magnetic valve
Work (opening) or stop (closing)；The key-press input unit is common key-press, including memory button and on ＆ off switch；Display
Unit provides friendly human-computer interaction interface, for showing tester's blood pressure and heart rate data, and reminds the current sphygmomanometer of user
State (in calibration or calibration is completed), power subsystem uses LDO or DC-DC step-up methods, is provided for other each circuit units
Stable output voltage, it is ensured that circuit stability works.
As a modification of the present invention, the pump valve control unit includes inflator pump, high-pressure safety valve, sensor, electricity
Magnet valve and slow play valve, one end connection inflator pump on gas siphunculus road, other end connection high-pressure safety valve, the magnetic valve and slow play
Valve is arranged on gas siphunculus road.
As a modification of the present invention, the high-pressure safety valve uses bellows Low lift safety valve.
As a modification of the present invention, the bellows Low lift safety valve includes valve, thimble and bellows, the list
Individual bellows is made up of 2 diaphragms, and specific method is to be uniformly coated with tin cream on the inside of a diaphragm edge wherein, then will be another
Diaphragm alignment is stained with, and is put into tin stove high-temperature process, and tin cream sticks together two diaphragms after melting, it is desirable to realizes seamless company
Connect, the whether qualified standard of inspection technique is the air-tightness of bellows, and the thimble is arranged on bellows, that is, welds one side wherein
At its center.As a modification of the present invention, the diaphragm box elastic device is diaphragm material selection copper alloy or stainless
Steel 316, ensure its sensitivity and weldability.Preferably, material selection beryllium-bronze, main component and proportioning Cu-2Be-
0.3Ni, it has very high intensity, elasticity, hardness, fatigue strength, elastic hysteresis is small and anti-corrosion, wear-resisting, cold-resistant, nonmagnetic.
As a modification of the present invention, the diaphragm is adopted as the diaphragm with annular concentric ripple, i.e. convoluted diaphragm,
Increase the displacement of its unit pressure, improve the sensitivity of bellows.
Electronic sphygmomanometer automatic zero set and the method for adjustment of automatic full scale, it is characterised in that as follows the step of automatic zero set：
Under normal mode, press O/I keys and carry out blood pressure measurement；When pendulous frequency or service life exceed preset value, or MCU can not be normal
When reading data in FLASH chip, then sphygmomanometer reminds user to be calibrated；Now user simultaneously long-press O/I keys with
M1 key 5s, then electronic sphygmomanometer is automatically into automatic calibration mode；Into after automatic calibration mode, zero point correction is first carried out,
MCU control inflator pumps are stopped, and magnetic valve is opened, and gas circuit is connected with outside air, now sensor collection current pressure
It is worth and send MCU to preserve, this pressure value is zero point；Zero point correction is completed, and then carries out full scale calibration, MCU control inflator pump works
Make, closed electromagnetic valve, now pressure constantly raises in gas circuit, and sensor constantly gathers current pressure values, when pressure reaches in gas circuit
To high-pressure safety valve Opening pressure when, safety valve open pressure release, to keep the constant rule for safety valve of the pressure value in gas circuit
The pressure value of definite value now sensor collection send MCU to preserve, and this pressure value is full scale value, and full scale calibration is completed.
MCU obtains null pressure with after full scale value, carrying out pressure proportional parameter calculating, and calculation formula is：（Full scale value-zero
Point value）/ 300 (the predetermined Opening pressure of this example mesohigh safety valve is 300mmHg), and this is saved in FLASH chip,
Calculate and call during for subsequent blood pressure measurements, so far, electronic sphygmomanometer automatic zero adjustment and full scale are completed.
As a modification of the present invention, when sensor gathers zero point and full scale value, multiple zero point, multiple full scale are gathered
Value, quantity are 30-100 times, and when the difference for meeting Pressure maximum value and minimum value is less than 0.5mmHg, MCU is determined as zero point
Stable, full scale is stable.
As a modification of the present invention, calculating pressure parameter also can repeatedly be averaged, and such as be repeated 3 times calibration zero
Point and full scale, 3 pressure parameters are calculated, and work as each pressure parameter calculated value difference<When 20, storage of averaging, blood is improved
The accuracy of pressure meter measurement.In addition, when user oneself judges that current blood-pressure measurement data is insincere, can also be calibrated, school
Quasi- mode is same as above.
As a kind of advantage of the present invention, installation high-pressure safety valve can also be used for protecting purpose, prevent due to electronic blood pressure
(software, which is run, to fly, and pump valve continues work for meter hardware failure (sensor failure or pump valve control circuit failure) or software failure
Make) cause pressure in gas circuit excessive, user's arm is damaged.
It is as follows relative to prior art, advantages of the present invention：The technical scheme smart structural design, it is compact, by only increasing
A high-pressure safety valve is added to solve this problem well, can when user thinks that current measurement value may be not accurate
To start automatic calibration mode, electronic sphygmomanometer can calibrate zero point and full scale automatically, carry out the measurement of blood pressure after the completion of calibration again,
Greatly improve the degree of accuracy and the confidence level of blood-pressure measurement data.
Brief description of the drawings：
Fig. 1 is electronic sphygmomanometer inner air path connection figure of the present invention；
Fig. 2 is present invention key element bellows Low lift safety valve internal structure schematic diagram；
Fig. 3 is that electronic blood pressure meter calibrating reminds schematic diagram；
Fig. 4 is electronic sphygmomanometer null value calibration process schematic diagram；
Fig. 5 is that schematic diagram is completed in the calibration of electronic sphygmomanometer null value；
Fig. 6 is electronic sphygmomanometer full scale calibration process schematic diagram；
Fig. 7 is that schematic diagram is completed in the calibration of electronic sphygmomanometer full scale；
Fig. 8 is that electronic sphygmomanometer calibrates completion and stores schematic diagram automatically；
Fig. 9 is electronic sphygmomanometer outward appearance UI schematic diagrames；
Figure 10 is electronic sphygmomanometer auto-calibration software flow chart；
Figure 11 is electronic sphygmomanometer hardware design block diagram；
Figure 12 is bellows structure schematic diagram；
In Fig. 1：1st, arm band, 2, sensor, 3, magnetic valve, 4, slow play valve, 5, inflator pump, 6, high-pressure safety valve, 7, gas leads to
Pipeline, 8, bellows, 9, valve, 10, the upper diaphragm of thimble 8.1,8.2 times diaphragms.
Embodiment
In order to further enhance the appreciation and understanding of the invention, this hair is further described with reference to the accompanying drawings and detailed description
It is bright.
Embodiment 1：
Referring to figure Fig. 1, Figure 11, it is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer, the electronic sphygmomanometer includes micro-
Processor, memory, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem, institute
State memory, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem with micro- place
Reason device is connected.The microprocessor refers to the single-chip microcomputer with order perform function；The memory is non-volatile ROM, is used for
Pressure parameter etc. is stored, it can be integrated in microprocessor internal；The core component of the pressure sensing cell can be by favour this
The common simulation pressure sensor or digital pressure sensor of energization bridge structure；Pump valve control unit is by microprocessor
Device control signal is amplified for controlling the work of air pump and magnetic valve (opening) or stopping (closing)；The key-press input list
Member is common key-press, including memory button and on ＆ off switch；Display unit provides friendly human-computer interaction interface, for showing tester
Blood pressure and heart rate data, and remind user current sphygmomanometer state (in calibration or calibration is completed), power subsystem using LDO or
DC-DC step-up methods, stable output voltage is provided for other each circuit units, it is ensured that circuit stability works.
It is described can automatic zero adjustment and full scale electronic sphygmomanometer, inner air path connection include inflator pump 5, high-pressure safety valve 6,
Sensor 2, magnetic valve 3 and slow play valve 4, one end connection inflator pump 5 on gas siphunculus road 7, other end connection high-pressure safety valve 6,
The magnetic valve 3 and slow play valve 4 are arranged on gas siphunculus road 7.
Embodiment 2：
Referring to Fig. 2, Figure 12, as a modification of the present invention, to improve the accuracy of high-pressure safety valve, the high pressure peace
Full valve 6
Using bellows Low lift safety valve, the bellows Low lift safety valve includes valve 9, thimble 10 and bellows 8, institute
State bellows 8 to be made up of 2 diaphragms, i.e. upper diaphragm 8.1 and lower diaphragm 8.2, specific method is wherein in a diaphragm edge
Side is uniformly coated with tin cream, is then stained with the alignment of another diaphragm, is put into tin stove high-temperature process, and tin cream glues two diaphragms after melting
Together, it is desirable to realize seamless connection, the whether qualified standard of inspection technique is the air-tightness of bellows.The thimble, 10 set
Put on bellows 8, that is, weld wherein at the center of upper diaphragm 8.1.Its concrete operating principle is：Bellows has a gas port and gas siphunculus
Road communicate it is outer other be that seal is good, with the work of pump, such as Fig. 2 gas flows, gas is constantly filled with bellows, gas
Pressure rise, upper and lower diaphragm deform upon, and upper diaphragm drives thimble to move up, (this example when air pressure is increased to scheduled pressure value
In be 300mmHg), thimble will rush open valve, and the gas in gas siphunculus road will carry out pressure release to protect by the valve opened slightly
Hold the pressure in gas circuit and keep constant.Air pressure is higher, and the opening angle of valve is bigger.Bellows Low lift safety valve pipeline portions are equal
For thicker TPR products, valve 9 is TPR tube Lu Zhongyi cracks.The diaphragm box elastic device is that diaphragm material selection copper closes
Gold or Stainless steel 316, ensure its sensitivity and weldability.Preferably, material selection beryllium-bronze, main component and proportioning Cu-
2Be-0.3Ni, it has, and very high intensity, elasticity, hardness, fatigue strength, elastic hysteresis is small and anti-corrosion, wear-resisting, cold-resistant, nothing
Magnetic.The diaphragm is adopted as the diaphragm with annular concentric ripple, i.e. convoluted diaphragm, increases the displacement of its unit pressure, carries
The sensitivity of high bellows.The bellows being made up of concentric convoluted diaphragm is shown in Figure 12, the bellows can be composed in series by multiple bellows (in
Between communicate), see Figure 12, obtain bigger displacement, increase its sensitivity.High-pressure safety valve can also be used for protect purpose, prevent by
Led in hardware failure (sensor failure or pump valve control circuit failure) or software failure (software, which is run, to fly, pump valve continuous firing)
Pressure is excessive in cause gas circuit, and user's arm is damaged.
Embodiment 3：Referring to Fig. 3-Figure 10, the method for adjustment of electronic sphygmomanometer automatic zero set and automatic full scale, automatic zero set
The step of it is as follows：Referring to Figure 10, under normal mode, press O/I keys and carry out blood pressure measurement；When pendulous frequency or service life exceed
Preset value, or when MCU can not normally read data in FLASH chip, then sphygmomanometer reminds user to be calibrated；Now use
Person while long-press O/I keys and M1 key 5s, then electronic sphygmomanometer is automatically into automatic calibration mode；Referring to Fig. 3, into automatic
After calibration mode, zero point correction is first carried out, MCU control inflator pumps are stopped, and magnetic valve is opened, and gas circuit is connected with outside air
Logical, now sensor gathers current pressure values and send MCU to preserve, and this pressure value is zero point；Zero point correction is completed, screen display
As shown in Figure 4 and Figure 5, full scale calibration is then carried out, MCU, which is controlled, inflates pump work, closed electromagnetic valve, now pressure in gas circuit
Constantly rise, sensor constantly gathers current pressure values, when pressure reaches the Opening pressure of high-pressure safety valve in gas circuit, safety
Valve opens pressure release, to keep the constant setting for safety valve of the pressure value in gas circuit (e.g., to be arranged in the present embodiment
300mmHg), the pressure value of now sensor collection is full scale value, send MCU to preserve, and full scale calibration is completed, and screen display is as schemed
Shown in 6 and Fig. 7, MCU obtains null pressure with after full scale value, carrying out pressure proportional parameter calculating, and calculation formula is：（Full scale value-
Zero point value）/ 300, and this is saved in FLASH chip, calculate during for subsequent blood pressure measurements and call, so far, electronic sphygmomanometer
Automatic zero adjustment and full scale are completed, and when screen display sensor as shown in Figure 8 gathers zero point and full scale value, gather multiple zero point, more
Secondary full scale value, quantity are 30-100 times, as being 32 times in the present embodiment, when the difference for meeting Pressure maximum value and minimum value is small
When 0.5mmHg, MCU is determined as zero point stability, full scale stabilization.Calculating pressure parameter also can repeatedly be averaged, such as weight
Multiple 3 calibration zero points and full scale, calculate 3 pressure parameters, and work as each pressure parameter calculated value difference<When 20, average
Storage, improve the accuracy of sphygmomanometer measurement.When user oneself judges that current blood-pressure measurement data is insincere, school can be also carried out
Standard, calibrating mode are same as above.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the scope that the claims in the present invention are protected.
Claims (6)
1. it is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer, it is characterised in that the electronic sphygmomanometer include microprocessor,
Memory, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem, the storage
Device, pressure sensing cell, pump valve control unit, key-press input unit, display unit and power subsystem with microprocessor phase
Even;The microprocessor is arranged to the single-chip microcomputer with order perform function；The memory is non-volatile ROM, for depositing
Pressure parameter is stored up, it is integrated in microprocessor internal；The pressure sensing cell is arranged to analog pressure sensor, or number
Word pressure sensor；Pump valve control unit be by microprocessor control signals amplify work for controlling air pump and magnetic valve or
Person stops；The key-press input unit is common key-press, including memory button and on ＆ off switch；Display unit provides friendly man-machine friendship
Mutual interface, for showing tester's blood pressure and heart rate data, and the current sphygmomanometer state of user is reminded, power subsystem uses LDO
Or DC-DC step-up methods, stable output voltage is provided for each circuit unit, it is ensured that circuit stability works, the pump valve control
Unit includes inflator pump, high-pressure safety valve, sensor, magnetic valve and slow play valve, and the one end on gas siphunculus road connects inflator pump, separately
One end connects high-pressure safety valve, and the magnetic valve and slow play valve are arranged on gas siphunculus road, and the high-pressure safety valve uses film
Box Low lift safety valve, the bellows Low lift safety valve include valve, thimble and bellows, and the bellows is by 2 diaphragm groups
Into the thimble is arranged on bellows, and welding is wherein at a face its center.
2. it is according to claim 1 can automatic zero adjustment and full scale electronic sphygmomanometer, it is characterised in that the bellow element
That is diaphragm material selection copper alloy or Stainless steel 316, ensure its sensitivity and weldability.
3. it is according to claim 2 can automatic zero adjustment and full scale electronic sphygmomanometer, it is characterised in that the diaphragm uses
For the diaphragm with annular concentric ripple, i.e. convoluted diaphragm, increase the displacement of its unit pressure, improve the sensitivity of bellows.
4. using the method for adjustment of electronic sphygmomanometer automatic zero set and automatic full scale described in claim 1-3 any one, it is special
Sign is, as follows the step of automatic zero set：Under normal mode, press O/I keys and carry out blood pressure measurement；When pendulous frequency or service life
Beyond preset value, or when MCU can not normally read data in FLASH chip, then sphygmomanometer reminds user to be calibrated；Now
User while long-press O/I keys and M1 key 5s, then electronic sphygmomanometer is automatically into automatic calibration mode；Into automatic calibration mode
Afterwards, zero point correction is first carried out, MCU control inflator pumps are stopped, and magnetic valve is opened, and gas circuit is connected with outside air, now
Sensor gathers current pressure values and send MCU to preserve, and this pressure value is zero point；Zero point correction is completed；Then full scale school is carried out
Standard, MCU control inflation pump works, closed electromagnetic valve, now pressure constantly raises in gas circuit, and sensor constantly gathers current pressure
Value, when pressure reaches the Opening pressure of high-pressure safety valve in gas circuit, safety valve opens pressure release, to keep the pressure value in gas circuit
The pressure value of the constant setting for safety valve now sensor collection is full scale value, send MCU to preserve, and full scale calibration is completed,
MCU obtains null pressure with after full scale value, carrying out pressure proportional parameter calculating, and calculation formula is：（Full scale value-zero point value）/ peace
The predetermined Opening pressure of full valve, and this result is saved in FLASH chip, calculate during for subsequent blood pressure measurements and call, so far,
Electronic sphygmomanometer automatic zero adjustment and full scale are completed.
5. electronic sphygmomanometer automatic zero set according to claim 4 and the method for adjustment of automatic full scale, it is characterised in that pass
Sensor gathers zero point and during full scale value, gathers multiple zero point, multiple full scale value, and quantity is 30-100 times, when meeting pressure maximum
When the difference of value and minimum value is less than 0.5mmHg, MCU is determined as zero point stability, full scale stabilization.
6. electronic sphygmomanometer automatic zero set according to claim 5 and the method for adjustment of automatic full scale, it is characterised in that meter
Calculation pressure parameter, which uses, is repeatedly averaged, and works as each pressure parameter calculated value difference<When 20, storage of averaging.
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| CN201510843698.8A CN105342592B (en) | 2015-11-27 | 2015-11-27 | It is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer |
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| CN201510843698.8A CN105342592B (en) | 2015-11-27 | 2015-11-27 | It is a kind of can automatic zero adjustment and full scale electronic sphygmomanometer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072212A1 (en) * | 2016-10-21 | 2018-04-26 | 华为技术有限公司 | Calibration method for blood pressure measuring device, and blood pressure measuring device |
| CN113900457B (en) * | 2021-09-29 | 2024-03-19 | 西安北方华创微电子装备有限公司 | Pressure zeroing method and semiconductor process equipment |
| CN115137325A (en) * | 2022-06-08 | 2022-10-04 | 广东乐心医疗电子股份有限公司 | Sphygmomanometer calibration device and calibration method |
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| DE2812755C2 (en) * | 1978-03-23 | 1980-01-17 | Blasius 7455 Jungingen Speidel | Pressure measuring mechanism for blood pressure measuring devices |
| IL64421A0 (en) * | 1980-12-05 | 1982-03-31 | Cousin Bernard M | Device for picking off and evaluating a pressure,in particular a pressure of a fluid |
| CN2103318U (en) * | 1991-09-18 | 1992-05-06 | 工贸合营苏州市东吴医疗仪器厂 | Mechanical electronic sphygmomanometer |
| CN2161257Y (en) * | 1993-07-09 | 1994-04-13 | 沈明 | Fully automatic non-invasive blood pressure measuring instrument |
| CN2461483Y (en) * | 2000-07-11 | 2001-11-28 | 上海上达医用仪表厂 | Automatic air valve device of sphygmomanometers |
| CN2488468Y (en) * | 2001-07-11 | 2002-05-01 | 无锡市飞彩实业公司 | Beryllium bronze diaphragm capsule used in blood-pressure meter |
| CN100349544C (en) * | 2004-08-16 | 2007-11-21 | 深圳迈瑞生物医疗电子股份有限公司 | Improved electronic blood pressure-detecting method and device |
| CN2882528Y (en) * | 2006-01-12 | 2007-03-28 | 于刚 | Multifunction sphygmomanometer calibrator |
| CN201279136Y (en) * | 2008-10-27 | 2009-07-29 | 苏州日精仪器有限公司 | Blood-pressure meter vent valve |
| CN201394013Y (en) * | 2009-04-13 | 2010-02-03 | 苏州日精仪器有限公司 | Pointer-type sphygmomanometer pressure drive device |
| CN201624648U (en) * | 2010-03-01 | 2010-11-10 | 苏州日精仪器有限公司 | Movement device for blood pressure gauge |
| CN202191285U (en) * | 2011-08-17 | 2012-04-18 | 鹿得医疗器械（南通）有限公司 | Handheld 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 |
| CN204484097U (en) * | 2015-03-05 | 2015-07-22 | 庄立 | Novel Arm-cuff device |
| CN205514571U (en) * | 2015-11-27 | 2016-08-31 | 江苏鹿得医疗电子股份有限公司 | Electrosphygmomanometer who can automatic school zero -sum completely spends |
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