CN204105980U - A kind of electric sphygmomanometer - Google Patents
A kind of electric sphygmomanometer Download PDFInfo
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- CN204105980U CN204105980U CN201420232339.XU CN201420232339U CN204105980U CN 204105980 U CN204105980 U CN 204105980U CN 201420232339 U CN201420232339 U CN 201420232339U CN 204105980 U CN204105980 U CN 204105980U
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- circuit
- electric sphygmomanometer
- microcontroller
- baroceptor
- way pipe
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Abstract
The utility model discloses a kind of electric sphygmomanometer, comprise microcontroller, the baroceptor circuit be connected with microcontroller, the power supply stabilization circuit be connected with microcontroller, the voicefrequency circuit that is connected with microcontroller, voicefrequency circuit comprises earphone telecommunication circuit, audio frequency sound circuit, microphone circuit.The earphone telecommunication circuit of electric sphygmomanometer, audio frequency sound circuit, microphone circuit, realize not by means of only the equipment connection such as earphone cord and mobile phone transmission data, also can by the equipment transmission data such as sound wave and mobile phone.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of electric sphygmomanometer.
Background technology
Along with the development of electronic technology, electric sphygmomanometer also starts to popularize gradually.Electric sphygmomanometer is the armarium utilizing modern electronic technology and blood pressure indirect inspection principle to carry out blood pressure measurement.
But current electric sphygmomanometer show that data only realize, in self display, not providing the ability with other devices communicatings, not being well positioned to meet the needs of user.
Content
The object of the present embodiment utility model is to provide a kind of electric sphygmomanometer, realizes transmitting data with mobile phone.
The object of the present embodiment utility model is achieved through the following technical solutions:
A kind of electric sphygmomanometer, comprise microcontroller, the baroceptor circuit be connected with microcontroller, the power supply stabilization circuit be connected with microcontroller, the voicefrequency circuit that is connected with microcontroller, voicefrequency circuit comprises earphone telecommunication circuit, audio frequency sound circuit, microphone circuit.
Wherein, described electric sphygmomanometer also comprises: the lithium battery be connected with described power supply stabilization circuit.
Wherein, described electric sphygmomanometer also comprises: the battery voltage detection circuit be connected with lithium battery.
Wherein, described electric sphygmomanometer also comprises: the baroceptor be connected with described baroceptor circuit.
Wherein, described electric sphygmomanometer also comprises: four-way pipe and cuff, the first passage of described four-way pipe and the inner space of described cuff, the second channel of described four-way pipe is communicated with air bleeding valve, the third channel of described four-way pipe is communicated with described baroceptor, and the four-way of described four-way pipe is communicated with air pump.
Wherein, described electric sphygmomanometer also comprises: the buzzer circuit be connected with microcontroller.
Wherein, described electric sphygmomanometer also comprises: the key circuit be connected with microcontroller.
Wherein, described electric sphygmomanometer also comprises: the display screen connecting circuit be connected with microcontroller, and described display screen connecting circuit connects display screen.
The technical scheme provided as can be seen from above-mentioned the present embodiment utility model, earphone telecommunication circuit, the sound wave of electric sphygmomanometer occur and Acquisition Circuit, realize not by means of only the equipment connection such as earphone cord and mobile phone transmission data, also can by the equipment transmission data such as sound wave and mobile phone.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of this utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The electric sphygmomanometer that Fig. 1 provides for this utility model embodiment forms schematic diagram one.
The electric sphygmomanometer that Fig. 2 provides for this utility model embodiment forms schematic diagram two.
Cuff connection diagram in the electric sphygmomanometer that Fig. 3 provides for this utility model embodiment.
Battery voltage detection circuit schematic diagram in the electric sphygmomanometer that Fig. 4 provides for this utility model embodiment.
Buzzer circuit schematic diagram in the electric sphygmomanometer that Fig. 5 provides for this utility model embodiment.
Key circuit schematic diagram in the electric sphygmomanometer that Fig. 6 provides for this utility model embodiment.
Power supply stabilization circuit schematic diagram in the electric sphygmomanometer that Fig. 7 provides for this utility model embodiment.
Display screen connecting circuit schematic diagram in the electric sphygmomanometer that Fig. 8 provides for this utility model embodiment.
Baroceptor circuit diagram in the electric sphygmomanometer that Fig. 9 provides for this utility model embodiment.
Earphone telecommunication circuit schematic diagram in the electric sphygmomanometer that Figure 10 provides for this utility model embodiment.
The electric sphygmomanometer sound intermediate frequency amplifying circuit on and off switch schematic diagram that Figure 11 provides for this utility model embodiment.
The electric sphygmomanometer sound intermediate frequency power amplification circuit schematic diagram that Figure 12 provides for this utility model embodiment.
Microphone circuit schematic diagram in the electric sphygmomanometer that Figure 13 provides for this utility model embodiment.
Air pump connection diagram in the electric sphygmomanometer that Figure 14 provides for this utility model embodiment.
Air pump circuit diagram in the electric sphygmomanometer that Figure 15 provides for this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
As shown in Figure 1, the embodiment of the present invention provides a kind of electric sphygmomanometer, comprise microcontroller 11, the baroceptor circuit 12 be connected with microcontroller 11, the power supply stabilization circuit 13 be connected with microcontroller 11, to be connected with microcontroller 11 voicefrequency circuit 14, voicefrequency circuit 14 comprises earphone telecommunication circuit 141, audio frequency sound circuit 142, microphone circuit 143.
The technical scheme provided as can be seen from above-mentioned the present embodiment utility model, earphone telecommunication circuit, the sound wave of electric sphygmomanometer occur and Acquisition Circuit, realize not by means of only the equipment connection such as earphone cord and mobile phone transmission data, also can by the equipment transmission data such as sound wave and mobile phone.
Further, as shown in Figure 2, embodiment of the present invention electric sphygmomanometer also comprises: the lithium battery 21 be connected with power supply stabilization circuit 200, the battery voltage detection circuit 22 be connected with lithium battery 21, the baroceptor 23 be connected with baroceptor circuit 201, the buzzer circuit 24 be connected with microcontroller 202, the key circuit 25 be connected with microcontroller 202, the display screen connecting circuit 26 be connected with microcontroller 202, display screen connecting circuit 26 connects display screen.
Exemplary, described display screen Support Line SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) data are transmitted.
As shown in Figure 2, embodiment of the present invention electric sphygmomanometer also comprises: the air pump 27 be connected with microcontroller 202, the air bleeding valve 28 be connected with microcontroller 202.
For the ease of understanding, as Fig. 2 also illustrates voicefrequency circuit 203.
As shown in Figure 3, embodiment of the present invention electric sphygmomanometer also comprises: four-way pipe 31 and cuff 32, four-way pipe 31 has first passage 311, second channel 312, third channel 313 and four-way 314, and cuff 32 has inner chamber, and inner chamber is heavily inflated to measure systolic pressure and diastolic pressure.The first passage 311 of four-way pipe 31 and the inner space of cuff 32, the second channel 312 of four-way pipe 31 is communicated with air bleeding valve, and the third channel 313 of four-way pipe 31 is communicated with baroceptor, and the four-way 314 of four-way pipe 31 is communicated with air pump.
Exemplary, first passage 311 connects cuff rubber tube one end, and the other end is connected with cuff.Four-way 314 connects the gas tube be connected with air pump, and third channel 313 connects the rubber tube be connected with baroceptor, and second channel 312 connects the rubber tube be connected with air bleeding valve.Its using method is as follows: when air pump is to cuff inflation, second channel 312 pathway closure, 313 Air conduct measurement air pressure, but air tight, and like this, air will be poured into cuff inflation to first passage 311.After baroceptor detection reaches proper air pressure, air pump stops inflation.When cuff needs aerofluxus, now four-way 314 pathway closure, the channel attached air bleeding valve of second channel 312 is opened.Because cuff pressure is higher than the external world, so air-flow can flow to second channel 312 passage from first passage 311 be discharged to the external world, the channel attached baroceptor of third channel 313 detects cuff air pressure simultaneously.
Specifically, the microcontroller of embodiment of the present invention electric sphygmomanometer is the STM32F103RBT6 single-chip microcomputer of cortex-m3 kernel.
The lithium battery of embodiment of the present invention electric sphygmomanometer is the chargeable lithium cell of 1000mA6V, and it has two interfaces, and one is charging inlet, and one is electric discharge interface.Charging connector is circular female, and jackshaft is positive pole, and periphery is negative pole.Lithium battery discharge connector passes through the power supply interface of wire connecting circuit board, conveniently for other circuit modules are powered.Lithium battery is furnished with standard charger.
The power supply stabilization circuit of embodiment of the present invention electric sphygmomanometer uses AMS1117-3.3 to obtain 3.3V voltage to other chip power supplies such as microcontroller, barograph.Each module is all connected by reliable interface.
As shown in Figure 4, battery voltage detection circuit:
Voltage detecting uses series resistance bleeder circuit, chooses that resistance is 10K and 5.1K, precision is the Chip-R of 1%.R1 one end connects with cell voltage positive pole, and the other end connects with 1 foot one end of resistance R2; The 2 foot ground connection of R2, simultaneously R2 and the nonpolar Capacitance parallel connection of paster, capacitance is 1uF; Here shunt capacitance is because power electric is pressed with clutter, in order to reduce the impact of clutter on image data, so shunt capacitance carries out filtering by a small margin, makes sampling more accurate.The 1 foot order sheet facility of resistance R2 have the pin PC0 of analog-digital conversion function, i.e. No. 8 pins.
When microprocessor detect to cell voltage lower than 80% of rated voltage, control display flicker battery icon, control buzzer simultaneously and sound, reminding user charges the battery.If charging or cell voltage be not lower than 75% of battery rated voltage in 10 minutes for user, then electric sphygmomanometer shuts down by force, until detect that cell voltage reaches rated voltage, electric sphygmomanometer could normal work.User can be allowed like this to form good charging custom, thus extend lithium battery service life.
As shown in Figure 5, buzzer circuit:
Select 3.3V active buzzer.Be connected in series the resistance of one 47 ohm between the positive pole of buzzer and 3.3V, negative pole connects with the colelctor electrode of NPN audion Q23.Transistor emitter ground connection, base stage meets 1K resistance R4.The resistance R4 other end connects the common pin of single-chip microcomputer.When the level of MCU_Beep is high level, triode ON, buzzer sends alarm sound; The level of MCU_Beep is low level, and audion disconnects, and buzzer stops sounding.Here the common pin PB8 of No. 61, MCU_Beep termination single-chip microcomputer pipe.
As shown in Figure 6, key circuit:
Embodiment of the present invention electric sphygmomanometer is provided with one or two user key-press, and its connecting circuit is the same.User key-press uses bipod paster button.Wherein button S1 foot 1 connects pull-up resistor R8 foot 2, and resistance R8 foot 1 connects 3.3V voltage; Button S1 foot 2 ground connection.The nonpolar patch capacitor of 0.1uF in parallel at button two ends.Button S1 foot 1 connects the common pin PB9 of No. 62, single-chip microcomputer on circuit boards.Being input pattern by arranging this pin, reading the level of button S1 pin one in real time.By detecting low and high level and be that time length judges whether button is pressed, be short by or long by, thus perform relevant operation.
Wherein button S1 is common key-press, starts Measure blood pressure in order to wake electric sphygmomanometer up or to start electric sphygmomanometer; Button S2 is in order to check blood pressure data.Button S2 pin one meets the common pin PB10 of No. 29, single-chip microcomputer.
As shown in Figure 7, power supply stabilization circuit:
Voltage stabilizing chip adopts AMS1117-3.3, and by following circuit, lithium battery voltage being changed into 3.3V, is the power supply such as single-chip microcomputer, baroceptor.Its circuit structure is as follows: 1 foot ground connection, the i.e. cathode of lithium battery of voltage stabilizing chip AMS1117; Meet the paster tantalum electric capacity C1 of nonpolar patch capacitor C2 and 4.7uF of 0.1uF before 3 pins, electric capacity C1 and C2 is connected in parallel; When circuit-board laying-out, C2 places near chip AMS1117.C1 and C2 mono-termination lithium battery anode, another termination cathode of lithium battery; 2 feet of AMS1117 meet the paster tantalum electric capacity C4 of nonpolar patch capacitor C3 and 10uF of 0.1uF; C3 and C4 is connected in parallel, one termination output voltage 3.3V, other end ground connection.
As shown in Figure 8, display screen connecting circuit:
Display screen selects the display screen carrying SPI driving chip, uses 5 wires to connect.1 foot meets 3.3V, and 2 feet meet GND, and 3 feet connect SDA data wire, and 4 feet connect SCK clock line, and 5 feet connect CS chip select line number.Above-mentioned SDA data wire and SCK clock line are connected No. 34 pins and No. 36 pins that single-chip microcomputer has SPI function respectively, and CS chip selection signal connects single-chip microcomputer No. 33 pins, effective when control display screen drive chip.Single-chip microcomputer sends the data of address and display by SPI mode, will video data on display.In the present embodiment, in showing on the left of display, have " systolic pressure ", " diastolic pressure ", " heart rate ", " time ", " state " printed words; The data and time etc. of display measurement on the right side of display.
As shown in Figure 9, baroceptor circuit:
Gas pressure sensor is socketed rubber tube, and the air pressure of cuff reaches sensor by rubber tube.Gas pressure sensor can convert the signal of telecommunication to air pressure, then through amplifying circuit, faint signal is amplified to the scope of monolithic function detection.
Its gas pressure sensor said selects the electric sphygmomanometer pressure transducer of MPS20N0040D-S model.Wherein 2 pins connect positive source, are 3.3V in this design; 5 pin ground connection; 1,6 pins are for exporting negative signal, and 3 pins export positive signal, and 4 pins do not connect.Owing to not needing to carry out temperature-compensating, therefore 1,6 pins are connected together.
The signal that pressure transducer exports is differential signal, and very faint, needs to amplify it.The magnifier be made up of amplifier IC10A, IC10B, IC11A commonly used in medical electronics field is chosen in one-level amplification, and its amplification is
wherein R12=R17, R11=R16, R13=R15; In this design, these resistance all get the resistance that precision is 0.1%.Concrete amplification can set according to demand.Secondary amplifies selects conventional in-phase proportion amplifying circuit, and amplification is determined according to demand.A filter circuit is connected in series between one-level amplifying circuit and second amplifying circuit.Filter circuit adopts unlimited gain multiple feedback step low-pass active filter, but the ripple of the parameter 0.1Hz of the resistance capacitance chosen ~ 30Hz passes through.Between one-level amplifying circuit and filter circuit, be connected in series the electric capacity of a 1uF, the DC component in filtered signal, only allow AC compounent to pass through.Wherein the outfan of one-level amplifying circuit is connected with single-chip microcomputer 22 pin, and the outfan of second amplifying circuit is connected with single-chip microcomputer pin 9, and single-chip microcomputer carries out analog digital conversion to output signal, obtains the data of pressure transducer; Triggering signal MCU_TRIG connects single-chip microcomputer No. 10 pins.
As shown in Figure 10, audio earphone hole connecting circuit:
The R of earphone heads is R channel wiring, and L is L channel wiring, and G is ground wire, and M is mic line.Mobile phone terminal L line is used for sending order, and R line is used for sending data, and M is in order to receive the data from sphygomanometer; What sphygomanometer end was corresponding receives single-chip microcomputer 4 pins respectively, and wherein connect with M and have No. 20 pin PA4 of analog conversion function, R line and L line connect 26, No. 27 pins respectively.Mobile phone transmits data by R, L two lines to blood glucose meter, is received data, such mobile phone and the blood glucose meter normal transmission data of blood glucose meter by M line.
As shown in figure 11, audio frequency sound circuit comprises audio amplifier circuit on and off switch:
In the standby state, although single-chip microcomputer enters low-power consumption mode, peripheral components does not have deenergization to equipment, still can consume electric energy.In order to reduce equipment power dissipation further, extension device service time, designing the power supply of corresponding power switch circuit to the larger device of peripheral power consumption and controlling.
The circuit of design as shown in the figure.Wherein SI_GATE connects single-chip microcomputer No. 30 pins, and the exportable low and high level of this pin controls the break-make of audion Q10.R72 is the pull down resistor of 10K, and under ensureing or non-configuration status unsettled at pin, NPN type triode Q3 disconnects, thus PMOS is disconnected, and does not power to voicefrequency circuit.D10 is germanium diode, and forward conduction voltage drop is about 0.2 ~ 0.3V.IC12 is SI9934 chip, and 1,3 pins connect the negative electrode of diode D10, and 2,4 pins are control end, connect the junction point of R74 and R73; 5,6,7,8 pins are for being outfan, the power input of direct accessing to audio circuit.Its control method: when needs are by voice communication, signal SI_GATE is pulled to high level, now audion Q10 conducting, the colelctor electrode of Q10 is pulled to about 0.7V, now the control end voltage of chip IC 12 is far below input terminal voltage, metal-oxide-semiconductor IC12 conducting, output voltage; When needing to close, signal SI_GATE is dragged down, Q10 disconnects, and IC12 control end voltage is driven high to VCC_BATTERY, and now MOS disconnects.
As shown in figure 12, audio frequency sound circuit also comprises audio power amplifying circuit:
Because the analog voltage driving force directly after D/A (digital-to-analogue conversion) conversion is very little, be not enough to drive loudspeaker to sound, so connect audio power amplifying circuit after analogue signal after D/A conversion to carry out power amplification to analogue signal.This circuit is primarily of LM386 chip and resistance capacitance composition.
Before audio signal is amplified, add the voltage follower and integrating circuit that are made up of amplifier LM358.Concrete connected mode as shown in the figure.8 pins of LM358 chip meet VCC_DEV, 4 pin ground connection, simultaneously between 8,4 pins, connect the nonpolar electric capacity of 0.1uF and the paster tantalum electric capacity of 10uF.Input 1 pin connects integrating circuit, is the round and smooth of signal change.Signal exports ingoing power amplifying circuit from No. 7 pins after integration.
This power amplification circuit is made up of chip LM386 and peripheral resistance, electric capacity.Chip 1,8 pin indirect 10uF paster tantalum electric capacity, 1 foot connects tantalum capacitance cathode; 6 feet meet power supply VCC_DEV, simultaneously and connect the nonpolar electric capacity of 0.1uF and 10uF tantalum electric capacity, supply voltage are stablized; 2,4 foot ground connection; 7 feet be connected in series the nonpolar electric capacity of 0.1uF between ground; 3 feet are input pin, connect the output signal of front stage circuits; No. 5 is the output of amplified signal, and connect the positive pole of 10uF tantalum electric capacity CB15, its negative pole connects loudspeaker positive pole, connects resistance with ground simultaneously.
As shown in figure 13, microphone circuit:
Employ digital microphone chip ADMP521 in this circuit, its inner integrated mic and ADC module, directly speech simulation signal conversion digital signal, then data can be transferred in single-chip microcomputer and process.This chip No. 2 pins connect with GND, choice for use left channel transfer data.CLK, DATA pin of chip connects 21, No. 22 pins of single-chip microcomputer respectively, is realized the data transmission of ADMP521 and microcontroller by these two pins.Microcontroller to receive after data this decoding data, obtains the data from mobile phone, then does other process.
As shown in figure 14, air pump connected mode:
Select SC3501PM air pump, its rated voltage is 6V, and maximum pressure is more than 400mmHg, and noise is less, stable performance.
The wherein rubber tube of 1 expanding channels cuff extraction, 2 passages do not connect.Two pins of direct current generator connect self-control on-off circuit, and circuit theory diagrams are as follows:
As shown in figure 15, B1 represents motor, one termination cell voltage, the source electrode of another termination P channel MOS tube Q20.The grounded drain of metal-oxide-semiconductor, grid connects with the colelctor electrode of NPN audion Q21 after being connected in series a 1K Chip-R R23.Transistor collector also connects with resistance R21, and base stage connects with the common pin of single-chip microcomputer after being connected in series a 1K resistance R22, grounded emitter.Another termination cell voltage of resistance R21.Such single-chip microcomputer controls electric motor starting, stopping by the low and high level of common pin.Concrete control mode is as follows:
But when MCU_MOC level is low, now audion Q21 disconnects, base voltage is pulled to cell voltage VCC_BATTERY owing to connecting pull-up resistor.Now the grid voltage of metal-oxide-semiconductor and cell voltage, equal with source voltage, so metal-oxide-semiconductor turns off, motor stops.When MCU_MOC level is low, audion Q21 base voltage is higher than its cut-in voltage, its collector voltage is pulled to 0.7V by force, now metal-oxide-semiconductor Q20 grid voltage is 0.7V, far below source voltage VCC_BATTERY, be less than cut-in voltage-2.5V, then metal-oxide-semiconductor conducting, motor B1 starts, and starts to cuff inflation.Here MCU_MOC meets single-chip microcomputer No. 59 pin PB7.
Above; be only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (8)
1. an electric sphygmomanometer, it is characterized in that, comprise microcontroller, the baroceptor circuit be connected with described microcontroller, the power supply stabilization circuit be connected with described microcontroller, the voicefrequency circuit that is connected with described microcontroller, described voicefrequency circuit comprises earphone telecommunication circuit, audio frequency sound circuit, microphone circuit.
2. electric sphygmomanometer according to claim 1, is characterized in that, described electric sphygmomanometer also comprises: the lithium battery be connected with described power supply stabilization circuit.
3. electric sphygmomanometer according to claim 2, is characterized in that, described electric sphygmomanometer also comprises: the battery voltage detection circuit be connected with lithium battery.
4. electric sphygmomanometer according to claim 3, is characterized in that, described electric sphygmomanometer also comprises: the baroceptor be connected with described baroceptor circuit.
5. electric sphygmomanometer according to claim 4, it is characterized in that, described electric sphygmomanometer also comprises: four-way pipe and cuff, described four-way pipe has first passage, second channel, third channel and four-way, described cuff has inner chamber, the first passage of described four-way pipe and the inner space of described cuff, and the second channel of described four-way pipe is communicated with air bleeding valve, the third channel of described four-way pipe is communicated with described baroceptor, and the four-way of described four-way pipe is communicated with air pump.
6. electric sphygmomanometer according to claim 5, is characterized in that, described electric sphygmomanometer also comprises: the buzzer circuit be connected with microcontroller.
7. electric sphygmomanometer according to claim 6, is characterized in that, described electric sphygmomanometer also comprises: the key circuit be connected with microcontroller.
8. electric sphygmomanometer according to claim 7, is characterized in that, described electric sphygmomanometer also comprises: the display screen connecting circuit be connected with microcontroller, and described display screen connecting circuit connects display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232339.XU CN204105980U (en) | 2014-05-07 | 2014-05-07 | A kind of electric sphygmomanometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232339.XU CN204105980U (en) | 2014-05-07 | 2014-05-07 | A kind of electric sphygmomanometer |
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| CN204105980U true CN204105980U (en) | 2015-01-21 |
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| CN201420232339.XU Expired - Fee Related CN204105980U (en) | 2014-05-07 | 2014-05-07 | A kind of electric sphygmomanometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977081A (en) * | 2015-06-30 | 2015-10-14 | 欧普照明股份有限公司 | Environmental light acquisition and analysis methods and environmental light acquisition and analysiscs |
| CN108742577A (en) * | 2018-07-04 | 2018-11-06 | 芜湖圣美孚科技有限公司 | A kind of blood pressure detector and method |
| CN113271843A (en) * | 2018-12-27 | 2021-08-17 | 欧姆龙健康医疗事业株式会社 | Blood pressure measuring device |
-
2014
- 2014-05-07 CN CN201420232339.XU patent/CN204105980U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977081A (en) * | 2015-06-30 | 2015-10-14 | 欧普照明股份有限公司 | Environmental light acquisition and analysis methods and environmental light acquisition and analysiscs |
| CN108742577A (en) * | 2018-07-04 | 2018-11-06 | 芜湖圣美孚科技有限公司 | A kind of blood pressure detector and method |
| CN113271843A (en) * | 2018-12-27 | 2021-08-17 | 欧姆龙健康医疗事业株式会社 | Blood pressure measuring device |
| CN113271843B (en) * | 2018-12-27 | 2024-02-20 | 欧姆龙健康医疗事业株式会社 | Blood pressure measuring device |
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| CF01 | Termination of patent right due to non-payment of annual fee |