CN106618558A - Electrocardiograph measurement probe and system - Google Patents
Electrocardiograph measurement probe and system Download PDFInfo
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- CN106618558A CN106618558A CN201610986318.0A CN201610986318A CN106618558A CN 106618558 A CN106618558 A CN 106618558A CN 201610986318 A CN201610986318 A CN 201610986318A CN 106618558 A CN106618558 A CN 106618558A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses an electrocardiograph measurement probe and system. The electrocardiograph measurement probe comprises a charge induction detector, a signal processor, a wireless transceiver and a microcontroller. The charge induction detector is used for probing a cardiac electrical activity charge signal of a corresponding part of a human body; the signal processor is connected to the charge induction detector, and is used for processing the cardiac electrical activity charge signal into a digital signal; the wireless transceiver is used for sending the digital signal to an electrocardiograph processing terminal through a wireless transmission way, wherein the electrocardiograph processing terminal generates a human body electrocardiograph signal according to the received signal; the microcontroller is connected to the signal processor and the wireless transceiver respectively, and is used for controlling the transceiver to send the digital signal to the electrocardiograph processing terminal through the wireless transmission way. Through the electrocardiograph measurement probe and system, data transmission is conducted through the wireless transmission way, there is no need to adopt a wire, thus both interference against human normal activities is reduced and a high-quality electrocardiosignal is obtained, no additional noise is generated, and the reliability is high.
Description
Technical field
The present invention relates to medical instruments field, and in particular to a kind of electrocardio measuring probe and system.
Background technology
Electrocardiosignal is projection of the cardiac electrophysiology activity in human body surface, and specifically, K, Na, Ga plasma rises in heart
Cell of fighting enters or discharges cell membrane different cycles of activity, so as to produce potential difference along the different directions of cell, here it is
Cardiac electrical origin.All of Cardiac pacing cell stacks up as power supply little one by one, along specific direction, performance
Go out periodic potential change, be exactly projection of the electrocardio in body surface different directions.The projection of these different directions is recorded,
Cardiac electrical change and conductive process just can be described.
Existing cardiographic detector device is converted into cardiac electrical gas current by external electrode, such as Ag-AgCl electrodes
Electronic current, so as to be adapted to using current electronic circuit technology measurement, record.In order to preferably record electrocardiosignal, and then
The technologies such as electrocardio in Welson, right leg drive are developed, and strict difinition measurement signal correspondence electrocardio have been put by electrode
In the projection of body surface, so as to constitute " lead " system of electrocardiosignal.It is " conventional 12 using most universal electrocardio measurement lead system
Lead ".As Fig. 1 shows the connected mode of conventional 12 leads of electrocardio measurement.Four limbs (left wrist LA, right wrist RA, left leg LL, right leg
RL electrode) constitutes limb leads, wherein left wrist LA, right wrist RA, left leg LL signals are after into cardiographic detector device, by spy
Fixed resistor network constitutes Welson central points, and the electrode signal of all measurements is all cardiac electrical potential in the electrode and Welson
Difference；Accordingly, above-mentioned measurement signal synthesizes right leg drive signal by amplification, shaping etc., is loaded on right leg RL, reduces altogether
Impact of the mould signal to measuring；In addition with 6 electrodes positioned at chest, corresponding measurement electrocardiosignal is in directions such as levels
Projection and conduction condition.These above-mentioned measurement signals are collectively formed so-called " conventional 12 leads ".
It is similar with " conventional 12 leads ", the also electrometric lead system of other hearts, but change anyway, employing
The electronic current that the gas current of electrocardiosignal is converted to measuring circuit is constant by Ag-AgCl electrodes.And at least need
Two electrode wires constitute measuring loop.The two electrodes need to be distributed in the corresponding body surface end in heart both sides, need longer
Electrode signal line.Because this reason, above-mentioned " tranquillization " cardiac electrical measuring method is used for into motion state or long-time is guarded
Etc. occasion, just there are many unconformable places.Wherein guard for electrocardio measurement signal requires relatively low, employing " conventional 12 leads "
When connection, the electrode of limb leads uses the end of trunk not in the end of limbs；Measure under some motion states
When electrocardio, using the electrode cable of embedded clothes；Etc..
Fig. 2 shows a kind of scale with electrocardio measurement function.Measurement request tested personnel's hand holds handle, light pin
Step down in specific region.Fig. 3 is shown by the cardiac electrical intelligent terminal occupation mode of shell on the back electrode measurement.Need in measurement process
The specific finger for wanting the both hands of tested personnel holds electrode.
Above-mentioned these schemes on other occasions, can be used for cardiac electrical measurement.But in liberation measurement process
The both hands of measurand, or even limbs, not any improvement.During measurement, the both hands or four limbs of tested personnel
It is required for the physical location given according to instrument and equipment to fix, and voltuntary movement is unable in measurement process.This is because,
The measuring principle that these measuring principles are all changed using gas current-electronic current, in order to obtain stable measurement electric current, it is necessary to
Using at least two electrode signal lines：If this holding wire can hinder tested personnel using flexible circuit conductor, long wire
Motion；If this signal adopts fixed electrode position, the four limbs of tested personnel are also just consolidated by the relative position of fixed electrode
It is fixed.
The content of the invention
The technical problem to be solved in the present invention is that the conducting wire that existing electrocardio measuring apparatus are used easily limits quilt
The normal activity of survey personnel, is not suitable for long-term monitoring measurement, so as to provide a kind of electrocardio measuring probe and system.
The one side of the embodiment of the present invention provides a kind of electrocardio measuring probe, including：Electric charge induction detector, for visiting
Survey the electrocardio-activity charge signal of corresponding human body；Signal processor, is connected with the electric charge induction detector, for inciting somebody to action
The electrocardio-activity charge signal is processed into data signal；Wireless transceiver, for passing through the data signal to be wirelessly transferred
Mode is sent to electrocardio processing terminal, wherein, the electrocardio processing terminal is according to the signal generation human ecg signal for receiving；
Microcontroller, is connected respectively with the signal processor and the wireless transceiver, for controlling the wireless transceiver by institute
State data signal to send to electrocardio processing terminal by wireless transmission method.
Alternatively, the signal processor includes：Amplifying circuit, for being amplified to the electrocardio-activity charge signal
Process；Wave filter, for carrying out noise filtering process to the electrocardio-activity charge signal；Analog-digital converter, for will be described
Electrocardio-activity charge signal is converted into the data signal.
Alternatively, the electric charge induction detector includes：Metal plate, is connected with the amplifying circuit；Screen layer, covers on
On the metal plate, for shielding skin surface beyond electric charge.
Alternatively, the amplifying circuit includes：Operational amplifier, input in the same direction is connected with the metal plate, while
Also it is grounded by resistance R3, reverse input end is connected by resistance R2 with output end, is also grounded by electric capacity C1.
Alternatively, the resistance value of the resistance R3 is more than or equal to 10G ohms.
Alternatively, the electrocardio measuring probe is arranged on wrist strap or watch.
Alternatively, also include：Battery, for the electric charge induction detector, the signal processor, the wireless receipts
Send out device and the microcontroller is powered.
The another aspect of the embodiment of the present invention, additionally provides a kind of electrocardio measuring system, including：The heart described at least two
Electrical measurement is popped one's head in, for detecting the electrocardio-activity charge signal of corresponding human body；Electrocardio processing terminal, with least two institutes
Electrocardio measuring probe is stated by wireless connection, for the electrocardio-activity that the electrocardio measuring probe according at least two is detected
Charge signal generates human ecg signal.
Alternatively, the electrocardio processing terminal includes：Wireless transceiver, for receiving what the electrocardio measuring probe sent
Electrocardio-activity charge signal；Microcontroller, is connected with the wireless transceiver, for what is received according to the wireless transceiver
Electrocardio-activity charge signal generates the human ecg signal.
Alternatively, the electrocardio processing terminal also includes：Battery, for the wireless transceiver and the microcontroller
Power supply.
In the embodiment of the present invention, electrocardio measuring probe carries out data biography with electrocardio processing terminal by wireless transmission method
It is defeated, without the need for adopting conducting wire, therefore high-quality electrocardiosignal can be obtained while reducing and mankind's normal activity is disturbed,
And it is high not produce extra mechanical noise, reliability.
Description of the drawings
By the more detailed description to embodiment of the present invention mode in accompanying drawing, above-mentioned and other purposes, the spy of the present invention
The advantage of seeking peace will be apparent from, wherein, identical reference number typically represents the phase in illustrated embodiments of the invention mode
Same part.
Fig. 1 shows the electrocardio measurement connection figure of conventional 12 leads；
Fig. 2 shows a kind of scale with electrocardio measurement function；
Fig. 3 is shown by the cardiac electrical intelligent terminal occupation mode of shell on the back electrode measurement；
Fig. 4 shows a kind of measurable cardiac electrical intelligent spire lamella principle；
Fig. 5 shows a kind of schematic diagram of electrocardio measuring probe of the embodiment of the present invention；
Fig. 6 shows a kind of structural representation of electric charge induction detector of the embodiment of the present invention；
Fig. 7 shows a kind of schematic diagram of amplifying circuit of the embodiment of the present invention
Fig. 8 shows the schematic diagram of another kind of electrocardio measuring probe of the embodiment of the present invention；
Fig. 9 shows a kind of schematic diagram of electrocardio measuring system of the embodiment of the present invention；
Figure 10 shows the electrometric Hz noise model of the heart.
Specific embodiment
The preferred embodiment of the present invention is described more fully with reference to the accompanying drawings, shows that the present invention's is excellent in the accompanying drawings
Select embodiment.However, the present invention may be realized in various forms and should not be construed and limited by embodiments set forth here.
Conversely, thesing embodiments are provided so that the present invention is more thorough and complete, also, convey the scope of the invention to completely
Those skilled in the art.
Further below with reference to chart illustrating the present invention.
Before the embodiment of the present invention is introduced, a kind of the equivalent of electrocardio measuring electrode gas current-electronic current is first introduced
Model, as shown in figure 4, in order to measure electrocardiosignal, except the conversion regime of gas current-electronic current, can also be using electricity
Lotus sensor direct measurement particular body portion, such as acral ionic charge signal.The survey of acral optional position
The corresponding ionic charge signal of amount electrocardio does not rely on the measurement of other optional positions, so as to possess removal electrocardio measurement lead
The primary condition of line.
The one side of the embodiment of the present invention provides a kind of electrocardio measuring probe, as shown in figure 5, the electrocardio measuring probe bag
Include：Electric charge induction detector 10, for detecting the electrocardio-activity charge signal of corresponding human body；Signal processor 20, with
Electric charge induction detector 10 connects, for electrocardio-activity charge signal to be processed into into data signal；Wireless transceiver 30, for inciting somebody to action
Data signal is sent to electrocardio processing terminal by wireless transmission method, wherein, electrocardio processing terminal is according to the signal for receiving
Generate human ecg signal；Microcontroller 40, is connected respectively with signal processor 20 and wireless transceiver 30, wireless for controlling
Transceiver 30 sends data signal to electrocardio processing terminal by wireless transmission method.
In the electrocardio measuring probe using the embodiment of the present invention, the side of electric charge induction detector 10 can be attached to
Body measurements, for example, wrist, ankle etc..Each electrocardio measuring probe is used to measure the electrocardio-activity electric charge of corresponding position
Signal, specifically, has electric charge induction detector 10 to carry out signals collecting, then passes the electrocardio-activity charge signal for collecting
Transporting to signal processor 20 carries out signal transacting, for example amplification, filtering, analog-to-digital conversion etc..Signal processor 20 is by after process
Signal is sent to microcontroller 40, is controlled wireless transceiver 30 by microcontroller 40 and is sent the signal to electrocardio processing terminal, is used
In generation electrocardiosignal.
In the embodiment of the present invention, electrocardio measuring probe carries out data biography with electrocardio processing terminal by wireless transmission method
It is defeated, without the need for adopting conducting wire, therefore high-quality electrocardiosignal can be obtained while reducing and mankind's normal activity is disturbed,
And it is high not produce extra mechanical noise, reliability.
It should be noted that the wireless transceiver of the embodiment of the present invention can carry antenna, it would however also be possible to employ external antenna,
Wireless signal after to launch coding.
Alternatively, above-mentioned signal processor 20 includes：Amplifying circuit, for being amplified place to electrocardio-activity charge signal
Reason；Wave filter, for carrying out noise filtering process to electrocardio-activity charge signal；Analog-digital converter, for electrocardio-activity is electric
Lotus signal is converted into data signal.
Wherein, signal is amplified and filtering process is to improve the quality of the signal for collecting, it is ensured that electrocardio is surveyed
The reliability of amount.Because the signal for collecting is usually analog signal, analog signal is converted into by numeral by analog-digital converter
Signal, is capable of identify that in order to microcontroller and processes.
It should be noted that in above-described embodiment, electrocardio-activity charge signal is sent to before electrocardio processing terminal,
In the every processing procedure carried out to electrocardio-activity charge signal, the signal after process can still react the letter of electrocardio-activity
Number.
Alternatively, as shown in fig. 6, electric charge induction detector 10 includes：Metal plate, is connected with amplifying circuit；Screen layer,
Cover on metal plate, for shielding skin surface beyond electric charge.The metal plate good for design shielding, when a spacing
From it is interior there is electric charge when, the electric charge on metal plate surface can be redistributed, so as to realize the detection of electric charge.
Alternatively, as shown in fig. 7, amplifying circuit includes：Operational amplifier, input in the same direction is connected with metal plate, together
When be also grounded by resistance R3, reverse input end is connected by resistance R2 with output end, is also grounded by electric capacity C1.In order to have
Preferably charge detection sensitivity, using high input impedance, the instrumentation amplifier of high-amplification-factor, i.e. operational amplifier.Correspondence
The structure of Fig. 7, the measurement of human body electrocardio electric charge, wherein, resistance R3 may be up to 10G ohms, the electricity of common epoxy resin
Road plate insulation impedance only has 100M Europe, is far not by far up to the mark.Alternatively, electrocardio measuring probe is arranged on wrist strap or watch.
Wrist strap can be worn in wrist, it is also possible to be worn on ankle.The corresponding charge detection of electrocardio-activity of body surface is realized, is made
With two or more, such as two wrists and two ankles, the synchro measure of charge signal, it is possible to carry out electrocardio
Signal is measured.
In order to improve the portability of electrocardio measuring probe, as shown in figure 8, the electrocardio measuring probe of the present embodiment also includes：
Battery 50, for powering to electric charge induction detector 10, signal processor 20, wireless transceiver 30 and microcontroller 40.
In order to realize removing the purpose of conducting wire, the electrocardio-activity charge signal for collecting can be digitized, by nothing
Line transmission means is the charge measurement signals of two wrists, or even two ankles and more multipoint charge measurement signals, with
Digitized form is dealt on receiver, receiver or is placed on the body of tested personnel, or is placed on and is closed apart from patient
Reason communication distance is somewhere, then can just remove the on line between charge measurement probe.
The another aspect of the embodiment of the present invention, additionally provides a kind of electrocardio measuring system, as shown in figure 9, the electrocardio measurement
System includes：At least two electrocardio measuring probe 100, for detecting the electrocardio-activity charge signal of corresponding human body；
Electrocardio processing terminal 200, with least two electrocardio measuring probes 100 by being wirelessly connected, for according at least two electrocardios
The electrocardio-activity charge signal that measuring probe 100 is detected generates human ecg signal.
Further, electrocardio processing terminal similarly includes：Wireless transceiver and microcontroller, wherein, wireless transceiver
For receiving the electrocardio-activity charge signal of electrocardio measuring probe transmission；Microcontroller is connected with wireless transceiver, for basis
The electrocardio-activity charge signal that wireless transceiver is received generates human ecg signal.
Alternatively, in order to ensure the portability of electrocardio measuring system, electrocardio processing terminal also includes：Battery, for centripetal
The wireless transceiver and microcontroller of electrical measuring systems is powered.
In the embodiment of the present invention, electrocardio measuring probe is fixed on human body electrocardio measurement position using bandage or viscose, than
Such as wrist, ankle and chest lead electrode positions.Open the power switch of electrocardio measuring probe and electrocardio processing terminal；Work as electrocardio
Processing terminal is received after the signal of " starting to measure ", and this signal can be that push button signalling, or electrocardio are processed eventually
The control instruction that end is obtained by wireless transceiver；Electrocardio processing terminal sends measurement and refers to the broadcast of all of electrocardio measuring probe
Order；Electrocardio measuring probe for example, works as work from instruction is connected to starting the 1/10 of the measures conversion interval no more than power frequency component cycle
When the frequency of frequency signal is 50Hz, the 1/10 of the power frequency component cycle is 2ms, if power frequency component is 60Hz, this time interval
Corresponding adjustment should be made；The data for gathering measurement are sent to electrocardio processing terminal by electrocardio measuring probe by wireless transceiver；
Electrocardio processing terminal obtains oscillation frequency signal using the method for filtering；The power frequency of the measurement data popped one's head in by each charge detection
Phasometer between oscillator signal calculates the time difference of each circuit-switched data sampling；Each charge detection is popped one's head in by the way of interpolation
Measurement signal change to identical measurement the moment, according to the position of each probe, recover corresponding electrocardiosignal.
In the present embodiment, electrocardio processing terminal sends instruction, the heart by broadcast mode at least two electrocardio measuring probes
Electrical measurement probe starts measurement and data acquisition according to instruction, and sends data to electrocardio processing terminal.
Although the embodiment of the present invention removes conducting wire, the signal digitlization of electrocardio measuring probe collection is depended on
Local clock system, in other words, is sent to the corresponding parts of body of electrocardio-activity without conducting wire electrocardio processing terminal
Charge signal be nonsynchronous, these digitized signals directly process just nonsensical, cannot get corresponding electrocardio letter
Number.
In order that the electrocardio processing terminal of the embodiment of the present invention obtains synchronous electrocardio-activity charge signal, can be using very
Multimode.Such as：
1), the clock of electrocardio measuring probe digitlization conversion adopts wireless mode synchronization, rather than using local crystal oscillator.
This mode can cause the radio communication power consumption of electrocardio measuring probe, electrocardio processing terminal to increase, and shorten running hours
Between, even result in time of measuring and do not reach basic requirement, or being accomplished by measured personnel carries more jumbo battery；Survey
The circuit auxiliary circuit of amount probe is more aided in, and at least needs the synchronised clock of KHz levels；In finite interval, it is impossible to by being permitted
But two or more personnel measure, or require more complicated system simultaneously；
2), the clock of electrocardio measuring probe digitlization conversion is solved by the way of wireless synchronisation and phase-locked local ring.
The wireless synchronization clock signal of electrocardio processing terminal need not always exist in measurement process, however it is necessary that certain hour is long
Degree, the high-precision locking synchronization clock of clock for changing local digital.This scheme is compared with 1), reduces radio communication
Require and power consumption, it is also possible to solved by way of timesharing in finite interval, the interference problem of multiple personnel's measurements, but
The digitlization clock of charge measurement probe can be extremely complex.
There is Hz noise (being also power line interference) in view of the normal environment residing for popular feeling electrical measurement activity.Figure 10
Show the electrometric Hz noise model of the heart, exist in the electrocardiosignal of measurement 50Hz (China etc.) or 60Hz (U.S.,
Japan etc.) signal.For same environment, same human body, same time period measurement, the power frequency of body surface diverse location is believed
Number frequency has the uniformity of height.Power frequency component in by isolating electric charge electrocardio-activity charge signal, it is possible to achieve most
The synchronization of the electrocardio-activity charge signal of low cost.
By the change present invention, belong within the spirit and principles in the present invention, any modification for being made, equivalent are replaced
Change, improve, should be included within the scope of the present invention.
Claims (10)
1. a kind of electrocardio measuring probe, it is characterised in that include：
Electric charge induction detector, for detecting the electrocardio-activity charge signal of corresponding human body；
Signal processor, is connected with the electric charge induction detector, for the electrocardio-activity charge signal to be processed into into numeral
Signal；
Wireless transceiver, for the data signal to be sent to electrocardio processing terminal by wireless transmission method, wherein, it is described
Electrocardio processing terminal is according to the signal generation human ecg signal for receiving；
Microcontroller, is connected respectively with the signal processor and the wireless transceiver, for controlling the wireless transceiver
The data signal is sent to electrocardio processing terminal by wireless transmission method.
2. electrocardio measuring probe according to claim 1, it is characterised in that the signal processor includes：
Amplifying circuit, for being amplified process to the electrocardio-activity charge signal；
Wave filter, for carrying out noise filtering process to the electrocardio-activity charge signal；
Analog-digital converter, for the electrocardio-activity charge signal to be converted into into the data signal.
3. electrocardio measuring probe according to claim 2, it is characterised in that the electric charge induction detector includes：
Metal plate, is connected with the amplifying circuit；
Screen layer, covers on the metal plate, for shielding skin surface beyond electric charge.
4. electrocardio measuring probe according to claim 3, it is characterised in that the amplifying circuit includes：
Operational amplifier, input in the same direction is connected with the metal plate, while being also grounded by resistance R3, reverse input end leads to
Cross resistance R2 to be connected with output end, be also grounded by electric capacity C1.
5. electrocardio measuring probe according to claim 4, it is characterised in that the resistance value of the resistance R3 is more than or equal to
10G ohms.
6. the electrocardio measuring probe according to any one of claim 1 to 5, it is characterised in that the electrocardio measuring probe sets
Put in wrist strap or watch.
7. the electrocardio measuring probe according to any one of claim 1 to 5, it is characterised in that also include：Battery, for
The electric charge induction detector, the signal processor, the wireless transceiver and the microcontroller are powered.
8. a kind of electrocardio measuring system, it is characterised in that include：
Electrocardio measuring probe described at least two any one of claim 1 to 7, for detecting the electrocardio of corresponding human body
Movable charge signal；
Electrocardio processing terminal, with electrocardio measuring probe described at least two by being wirelessly connected, for according at least two institutes
State the electrocardio-activity charge signal generation human ecg signal that electrocardio measuring probe is detected.
9. electrocardio measuring system according to claim 8, it is characterised in that the electrocardio processing terminal includes：
Wireless transceiver, for receiving the electrocardio-activity charge signal that the electrocardio measuring probe sends；
Microcontroller, is connected with the wireless transceiver, for the electrocardio-activity electric charge received according to the wireless transceiver
Human ecg signal described in signal generation.
10. electrocardio measuring system according to claim 9, it is characterised in that the electrocardio processing terminal also includes：
Battery, for powering to the wireless transceiver and the microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986318.0A CN106618558A (en) | 2016-11-09 | 2016-11-09 | Electrocardiograph measurement probe and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986318.0A CN106618558A (en) | 2016-11-09 | 2016-11-09 | Electrocardiograph measurement probe and system |
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| CN106618558A true CN106618558A (en) | 2017-05-10 |
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| CN201610986318.0A Pending CN106618558A (en) | 2016-11-09 | 2016-11-09 | Electrocardiograph measurement probe and system |
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| CN207101270U (en) * | 2016-11-09 | 2018-03-16 | 苏州洛哈思信息科技有限公司 | A kind of electrocardio measuring probe and system |
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| CN202408883U (en) * | 2012-01-09 | 2012-09-05 | 王慰 | Active RFID (radio frequency identification) system for monitoring heart rate |
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Application publication date: 20170510 |