CN105877733A - Bioelectric measurement apparatus for general medical practitioners - Google Patents
Bioelectric measurement apparatus for general medical practitioners Download PDFInfo
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- CN105877733A CN105877733A CN201510004676.2A CN201510004676A CN105877733A CN 105877733 A CN105877733 A CN 105877733A CN 201510004676 A CN201510004676 A CN 201510004676A CN 105877733 A CN105877733 A CN 105877733A
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Abstract
The invention discloses a bioelectricity measurement apparatus for general medical practitioners. The bioelectricity measurement apparatus comprises electrodes (1), a signal conditioning circuit (2), a data acquisition card (3), an apparatus driver (4), panel program (5), application program (6), a virtual apparatus development platform (7), a portable PC (8), electronic medical records (9) and bioelectricity measurement files (10). The bioelectricity measurement apparatus is characterized in that the electrodes (1) are mounted at to-be-measured bioelectricity parts of a human body; weak bioelectricity signals are amplified by the signal conditioning circuit (2), and amplified bioelectricity signals are transmitted to the data acquisition card (3); the apparatus driver (4), the panel program (5), the application program (6) and the virtual apparatus development platform (7) software are installed on the portable PC (8), and operation interface of the bioelectricity measurement apparatus for operating the whole apparatus is developed on the portable PC (8); meanwhile, bioelectricity measurement records are automatically generated and are converted into the medical records (9) and the bioelectricity measurement files (10) according to measurement results. The bioelectricity measurement apparatus implements synchronous measurement of various bioelectricities of the human body; on one apparatus, measurement of electroencephalography, electromyography, electrooculography (including retina electrography and nystagmus) and electrogastrography is synchronously achieved.
Description
Technical field
The present invention relates to the Medical measuring instrument device of a kind of applicable general practitioner.
Background technology
Bio-electric phenomenon is the fundamental characteristics of vital movement, and nearly all life process is all along with bioelectric generation, bio electricity
It it is the important information of the reflection various physiological status of human body.Bioelectric researchs various to human body, record become grasp bodily fuctions,
Clinical diagnosis and the reliable basis for the treatment of.
But in reality, various bioelectric measurement instruments, it measures function is all single, such as electrocardiograph, electroencephalograph, flesh figure
Machine, eye electricity (containing retina electricity and nystagmus), stomach electricity etc., it is impossible to carry out human body various bio electricity synchro measure, can only make in hospital
With, general practitioner is usually with outpatient service formal layout commonly encountered diseases, frequently-occurring disease and a many-side people of general emergency case, due to general practitioner duty
The particularity of industry, it would be highly desirable to exploitation is suitable for general practitioner occupational characteristic and the bioelectric measurement instrument being actually needed.
Summary of the invention
The present invention discloses the bioelectric measurement instrument of a kind of general practitioner, is (containing retina electricity and eye by brain electricity, myoelectricity, eye electricity
Shake), stomach electricity on measuring, there is same procedure and principle is integrated into a measuring instrument, creatively apply virtual instrument technique,
Develop the bioelectric measurement instrument that applicable general practitioner occupational characteristic uses, carry out human body various bio electricity synchro measure, concrete skill
Art scheme is as follows:
Bioelectric measurement instrument composition includes: electrode 1, signal conditioning circuit 2, data collecting card 3, device drives 4, panel journey
Sequence 5, application program 6, virtual instrument development platform 7, portable PC8, electronic health record 9, bioelectric measurement archives 10.Such as figure
Shown in 1, it is characterised in that: electrode 1 is arranged on the bio electricity position that human body is to be measured, and bioelectric small-signal is through signal
Modulate circuit 2 amplifies, and is transported on data collecting card 3, device drives 4, panel program 5, application program 6 and virtual instrument
Development platform 7 software is arranged on portable PC8, and the operation interface operation developing bioelectric measurement instrument on portable PC8 is whole
Instrument, automatically generates bioelectric measurement record simultaneously, automatically analyzes according to measurement result and will convert into case history (9) and bio electricity analysis
Measure archives (10).
Use needle electrode or surface electrode.Needle electrode is made up as material, surface electrode silver or corrosion resistant plate of platinum wire
Thick 0.2-0.5mm, diameter 8mm disk, equipped with microminiature integrated amplifier, by epoxy encapsulation, there is signal at the disk back side
Lead-out wire and power line.Its amplifying circuit is as shown in Figure 2.Skin surface leading electrode it is placed on, under leading electrode during use
The locally electrical activity of muscle, is that a kind of non-invasive detection methods is applicable to the change of myoelectricity when guiding Evoked ptential or motion.
The present invention compared with prior art has a following good effect:
1. the operation of bioelectric measurement instrument and measurement result analysis have the virtual interface of virtual instrument to complete on portable computer, make biology
Electrical measurement instrument equipment is simple, practical, and reliability is high and the biggest.
2. human body various bio electricity synchro measure carried out by bioelectric measurement instrument, synchronizes to realize brain electricity, myoelectricity, eye is electric (contains on an instrument
Retina electricity and nystagmus), stomach electricity measurement.
3. owing to using modularity to have reusable, transplantation, reconfigurable advantage with the design of Hierarchical Design structure, so can
Use for other medical apparatus.For hardware, software is simple, it is simple to upgrading, be provided simultaneously with higher precision with very
Many functions being difficult on hardware.
4. by Application of Virtual in bioelectric measurement instrument, it is allowed to simple in construction, it is simple to carry.
Accompanying drawing explanation
Fig. 1 bioelectric measurement instrument composition diagram
Fig. 2 surface electrode amplifying circuit
Wherein: electrode 1, signal conditioning circuit 2, data collecting card 3, device drives 4, panel program 5, application program 6, virtual
Instrument development platform 7, portable PC8, electronic health record 9, bioelectric measurement archives 10.
Detailed description of the invention
1. bio electricity parameter and the scope of measurement
2. bioelectric measurement electrode
Bioelectric measurement is generally made up of certain treated metallic plate, metal fine needle or wire netting, measures electrode performance excellent
Whether good, the measurement result of various bioelectric potential change will be directly affected.
In practice, when generally electrode measurement bioelectric potential being changed, regard as and there occurs on electrode-dielectric interface
From ionic conduction to the conversion process of energy of electronic conduction, and the electrical property equivalence of electrode is become by electric capacity and resistance and half
The equivalent circuit of cell potential composition.
3. eeg measurement realizes
Eeg measurement, using bipolar lead mode is then by pair of electrodes, measures potential difference between two electrodes, brain electricity
Calibration (calibration) voltage of figure is generally with 20,50,100,200,500,1000 several, and multiple tracks is simultaneously entered, by
The faintest, generally in magnitude in EEG signals.Its preamplifier due preamplifier technical specification: input
Noise≤3 μ V, gain: 500-1000 times, common mode rejection ratio >=80dB, input impedance >=10M Ω.Employing low frequency is handed over
Stream coupling, three-stage operational amplifier circuit, low noise field effect transistor, as input stage, use homophase input mode.Preposition
Amplifier uses multistage amplifier composition, the high-frequency cut-off frequency of wave filter: 15,35,50,70,100Hz and "Off".
Gain control can be divided into overall gain (1/4,1/2,1,2 fourth gear) and branch gain (seven grades, every grade of incremental 6dB) two
Plant control mode.
Electroencephalogram is made up of different frequency, different amplitude and different shape brain wave.Electroencephalogram is the life of a kind of randomness
Reason signal, it is the clearest and the most definite that its regularity can not show a candle to electrocardiogram, generally amplitude and the frequency content of electroencephalogram is examined as brain electricity
Main Basis time disconnected, and frequency content is particularly important.
4. electromyogram is measured and is realized
Using needle electrode and surface electrode, needle electrode is by platinum wire as material, and the tested muscle of sterilized rear insertion draws
Lead electromyographic signal.Surface electrode silver or corrosion resistant plate make thick 0.2～0.5mm, diameter 8mm, are placed on skin surface and guide
Electrode, for the electrical activity of local muscle under leading electrode, be a kind of non-invasive detection methods be applicable to guide Evoked ptential or
The change of myoelectricity during motion.
Electromyographic signal uses the three-stage operational amplifier of homophase input, preamplifier noise≤3 μ V；1,10 sensitivity:,
20,50,100,200,500,1000,2000,5000,10000, error is 10%；02,0.5 stimulus frequency:,
1,2,5,10,20,50Hz, error is 5%；Stimulate pulsewidth: 0.1,0.2,0.5,1ms, error is 10%.
Signal record: two line signals, markers, sensitivity, walking speed etc.
5. an electricity (containing retina electricity and nystagmus electricity) figure is measured and is realized
Electro-oculogram is the potential change record that eye movement causes, and when measuring, pair of electrodes is attached to the both sides of eyes,
When the position of eyes is at permanent datum, when the position of eyes is at permanent datum, the current potential of eyes figure is defined as zero,
During eye level motion, the just change of the current potential of electro-oculogram.
When retina is stimulated by instantaneous flash, security protection detection electrode on retina inner surface or cornea be placed in forehead
Reference electrode, recordable to of short duration current potential order change, the total the most collectively electroretinogram of these potential change.
Electronystagmogram is ocular movement chronognosis film and retina electrogram, and electronystagmogram signal is the faintest, is easily subject to stronger
Alternating current and the interference of electromyographic signal, record the nystagmus signal of telecommunication time, use low pass filter remove 15Hz or 20Hz
Above interference.
6. clectrogastrogram is measured and is realized
Clectrogastrogram is the electro-gastric signals record of the electrode measurement by being attached on skin of abdomen, owing to electro-gastric signals frequency is the lowest,
Only 0.05Hz, usual and respiration interference (0.2～0.4Hz), electrocardiosignal (0.8～1.0Hz), electrode and contact skin
Time noise (less than 3Hz), motion artifacts (whole frequency domain) and other noise aliasings, thus result in detection difficult.For
This, preamplifier use high input impedance (more than 5M Ω), low noise, low drifting, high cmrr integrated
Transport and placing device composition CMRR >=90dB, frequency response: time constant be more than 10S, high-frequency cut-off frequency 100～1000Hz it
Between, in order to overcome electrocardio and respiratory wave etc. to disturb, instrument is additionally provided with filtering link.
7. instrument bus and USB interface
The instrument of the present invention uses pcmcia bus, and it is English " PERSONAL COMPUTER MEMORY CARD
INTERNATIONAL ASSOCIATION " abbreviation of (PC RAM (random access memory) card international federation), PCMCIA is one more than 300
International Standards Organization of member company and trade community, this is organized into and stands on 1989, it is therefore an objective to set up an integrated circuit state
Border standard, improves the interchangeability of mobile computer.This computer desired strength is high, and energy consumption is low, and size is little, and several to this
The requirement of bar performance is the highest.PCMCIA promulgated on the basis of 68 pin PC card standards of RAM (random access memory) card in 1991, again
Newly formulated two kinds of interface standards of CardBus and ZV in 95 years, made notebook can connect device PCI, as High_speed NIC,
Video capture/video conference card, SCSI card etc..
USB interface chip: model: PDIUSBD12.It is a cost and the USB device of function optimization.It is generally used for based on
The system of microcontroller and the microcontroller of communication system are in High Speed General parallel interface.It also supports local DMA conversion.Pass through
Modular method realizes USB interface, and allows designer to select optimal system microcontroller.Its motility, reduces
Development time and risk, and reduce investment.Feature: meet universal serial bus specification 2.0 version (basic rate)；Gao Xing
The USB interface device of energy, and it is integrated with SIE, FIFO memory, transceiver and manostat；Meet the classification of most devices
Specification；Can plug into the high speed parallel interface (2 megabyte/second) of any external microcontroller or microprocessor；Completely self-contained DMA
Operation；It is integrated with many structures FIFO memory of 320 bytes；Double buffering scheme adds handling capacity, and simplifies real time data
Transmission；Message transmission rate；Message transmission rate: 1Mbytes/s (batch mode), it is achieved 1Mbits/s (synchronous mode)；
The usb bus that software controls；Programmable clock frequency exports；Internal electrification reset and low-voltage reset circuit；SO28 and
TSSOP28 encapsulation mode；Twin voltage operator scheme, 3.3 ± 0.3V or 5V supply voltage scope are 4.0～5.5V；Multiple
The bulk transfer of interrupt mode and synchronous transfer.
8. bioelectric measurement instrument operation instruction
Professional nature requirement according to general practitioner, visits process patient in family with the form of visit to the parents of schoolchildren or young workers, and when making house calls, full section cures
Take root the Professional knowledge according to oneself and clinical experience, in conjunction with the concrete condition of diagnosis patient, see Fig. 1, one will be selected and be suitable for
Patient exports the electrode in 1 and is arranged on the suitable position of patient body, by the Virtual Instrument on screen of portable computer
Control and operate whole instrument, automatically analyze simultaneously and generate bioelectric measurement record, automatically will convert into disease according to diagnostic result
Go through, check that result analyzes archives with bioelectric measurement.
Claims (5)
1. a bioelectric measurement instrument for general practitioner, its composition includes: electrode (1), signal conditioning circuit (2), data acquisition
Card (3), device drives (4), panel program (5), application program (6), virtual instrument development platform (7), portable PC (8),
Electronic health record (9), bioelectric measurement archives (10), it is characterised in that: electrode (1) is arranged on the bio electricity that human body is to be measured
Position, bioelectric small-signal, through signal conditioning circuit (2) amplification, is transported on data collecting card (3), device drives (4),
Panel program (5), application program (6) and virtual instrument development platform (7) software are arranged on portable PC (8), and portable
The upper whole instrument of operation interface operation developing bioelectric measurement instrument of PC (8), automatically generates bioelectric measurement record, root simultaneously
Automatically analyze and will convert into case history (9) according to measurement result and analyze archives (10) with bioelectric measurement.
Bioelectric measurement instrument the most according to claim 1, it is characterised in that: electrode (1) uses needle electrode or surface electrode.
Bioelectric measurement instrument the most according to claim 2, it is characterised in that: needle electrode by platinum wire as material.
Bioelectric measurement instrument the most according to claim 2, it is characterised in that: surface electrode silver or corrosion resistant plate make thickness
0.2-0.5mm, diameter 8mm disk, equipped with microminiature integrated amplifier, by epoxy encapsulation, there is signal at the disk back side
Lead-out wire and power line.
5. according to claim 1, it is characterised in that: the agent structure of virtual instrument uses pcmcia bus.
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| CN201510004676.2A CN105877733A (en) | 2015-01-04 | 2015-01-04 | Bioelectric measurement apparatus for general medical practitioners |
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| CN201510004676.2A CN105877733A (en) | 2015-01-04 | 2015-01-04 | Bioelectric measurement apparatus for general medical practitioners |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106473737A (en) * | 2016-11-24 | 2017-03-08 | 张珊珊 | A kind of measuring system based on the sEMG muscle and deep signal of telecommunication |
| CN108634948A (en) * | 2018-05-11 | 2018-10-12 | 南京宽诚科技有限公司 | A kind of detection method, device, detection device and the storage medium of stomach and intestine electric signal |
| CN108742590A (en) * | 2018-04-08 | 2018-11-06 | 南京宽诚科技有限公司 | A kind of acquisition method, device, collecting device and the storage medium of stomach and intestine electric signal |
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| CN87102381A (en) * | 1987-03-30 | 1988-10-12 | 创建基立有限公司 | Biological signal detection processing unit and method |
| WO1993007804A1 (en) * | 1991-10-25 | 1993-04-29 | Aspect Medical Systems, Inc. | Cerebral biopotential analysis system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106473737A (en) * | 2016-11-24 | 2017-03-08 | 张珊珊 | A kind of measuring system based on the sEMG muscle and deep signal of telecommunication |
| WO2018094878A1 (en) * | 2016-11-24 | 2018-05-31 | 张珊珊 | Measurement system based on deep-muscle semg electrical signal |
| CN108742590A (en) * | 2018-04-08 | 2018-11-06 | 南京宽诚科技有限公司 | A kind of acquisition method, device, collecting device and the storage medium of stomach and intestine electric signal |
| CN108634948A (en) * | 2018-05-11 | 2018-10-12 | 南京宽诚科技有限公司 | A kind of detection method, device, detection device and the storage medium of stomach and intestine electric signal |
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Application publication date: 20160824 |
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