CN104757970B - Utilize the detection means of mandibular surface checking with EMG method genioglossus muscular function - Google Patents
Utilize the detection means of mandibular surface checking with EMG method genioglossus muscular function Download PDFInfo
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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
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
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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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
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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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Abstract
The invention discloses a kind of detection means using mandibular surface checking with EMG method genioglossus muscular function, including at least three acquisition electrodes for being used for collection surface electromyographic signal, wherein, on the acquisition electrode surface covered with least one layer of development non-woven fabrics fiber.The present invention makes dry electrode using nano silver fibre, reduction uses conductive paste, its electromotive force that polarizes is small, using more convenient, and the effect of preferable myoelectricity guiding can be obtained, the electromyographic signal collected is more comprehensively accurate, can not only be applied to human body mandibular surface checking with EMG method, it can also be used to the surface myoelectric detection at other positions of body.
Description
Technical field
The present invention relates to biomedical engineering field, more particularly to one kind to utilize mandibular surface checking with EMG method genioglossus flesh work(
The detection means of energy.
Background technology
Electromyogram (Electromyography, EMG) is electrical activity when using electronics instrument record muscle static or shrinking
Curve；The action potential of one muscle fibre forms single muscle fiber action potential (Single Fiber in communication process
Action Potential, SFAP)；The superpositions of all SFAP over time and space form motor unit in one motor unit
Action potential (Motor Unit Action Potential, MUAP) (Peter, 2005)；During motor unit continuous discharge
Produce motor unit action potential sequence (Motor Unit Action Potential train, MUAPt)；During muscle activity,
The MUAPt of multiple motor units formation of muscle activity is participated in by the volume conductor of the compositions such as muscle, hypodermis and skin
Filter action after be superimposed to form electromyographic signal at detecting electrode.
Traditional EMG detections are that the tiny electrodes such as needle electrode, wire electrode, hook electrode are inserted directly into musculature
Inside it is acquired, obtains plug-in type electromyographic signal (intramuscular EMG Signal, iEMG).Needle electrode, wire electricity
Pole, hook electrode can contact with muscle fibre well, and mutually superimposed degree is relatively low by MUAP, therefore can easily detect not
The MUAP sequences of same type motor unit.However, iEMG detections is invasive, larger pain is brought to subject.Surface
Electromyographic signal (Surface EMG, SEMG) is that detecting electrode is placed on into skin surface collection EMG signal (Hermens et
Al, 1984), it is a kind of noninvasive EMG detection methods, but there is also following some deficiencies, it is specific as follows：
1) compared with iEMG, SEMG is that EMG signal obtains after the tissue such as muscle, fat, skin, for different lifes
Reason state, age, sex, skeletal form, the people of skin, influence of the above-mentioned tissue to EMG signal differ greatly, it is difficult to shape
The examination criteria unified into one.
2) EMG signal receives easy by the filter action of the various volume conductors formed, waveform in communication process
Certain deformation occurs, volume conductor also makes nearby multiple MUAP mutually superimposed generation crosstalks with distant place, it is difficult to distinguishes.
3) measurement that Hz noise, electrocardio, electrode movement etc. can be to SEMG produces interference, the skin meeting with larger impedance
Reduce SEMG signal to noise ratio.
SEMG signal detections have the advantages of noninvasive, convenient, while there is also the problem of addition of waveforms and variation.Therefore,
Improving the signal quality of SEMG electrodes needs in terms of electrode material, acquiring biological electric signals process circuit and signal processing algorithm
It is improved.
Duan Yanwen etc. (2007) have developed a kind of powder sintered electrodes of Ag/AgCl, with traditional Ag/AgCl coating electrodes or silver
Electrode is compared, and has relatively low electrode-skin impedance, is effectively improved the signal to noise ratio of electrode.Typically when using electrode, need
Conductive paste is smeared, a kind of spike microcomputer with 100 μm of spacing is have developed to reduce the impedance of electrode, Griss etc. (2002)
Tool structure electrode, this electrode remain to obtain the Low ESR similar to wet electrode in the case of without using conductive paste.
Active electrode is the electrode for integrating electrode and amplifying circuit, electrode can be avoided to connect using active electrode
The interference that line introduces.Nishimura etc. (1992) integrates voltage follower and electrode, reduces the resistance of electrode connecting line
It is anti-, effectively inhibit noise jamming；He Qinghua etc. (2003) have developed a kind of active electrode with two-stage amplifying circuit, success
Applied to SEMG signal detections.
Research main method in terms of current electrode design is utilization space electrod-array detection SEMG signals, and is passed through
Space filtering improves signal quality.(2000,2007) such as Block etc. (2002) and Kleine are electric using the array of 125 passages
Pole gathers SEMG signals, has obtained all kinds of MUAP waveform.Lapatki etc. (2003) have developed a kind of the soft of polyimide material
Property high-density electrode array, can be used for the crooked positions such as neck and face SEMG detection.
SEMG signals are a kind of complicated biological electric process.The action potential of muscular movement by musculature, subcutaneous group
Knit, skin isometric(al) conductor, be detected indirectly in skin surface, can introduce in its formation and transmitting procedure and largely make an uproar
Acoustic jamming.Main interference includes：1st, inside musculature, hypodermis, dermoepidermal etc. have different distributed resistances and
Distribution capacity, each action potential are superimposed and filtered in these tissues；2nd, the fine and close cuticula of skin surface relatively dry, makes
The contact impedance of SEMG electrodes is up to hundreds of k Ω-tens M Ω；3rd, conductive paste etc. can be used between electrode and skin, forms one
Metal-electrolyte solution interface, the chemical reaction at this interface can produce an electrode potential, and the current potential is with electrode and skin
Exposure level and change.
Because SEMG signals are fainter (uV-mV levels) in itself, easily by noise jamming, and electromyographic signal passes through subcutaneous group
Knit and decayed again after skin, the collection and processing for making surface electromyogram signal have higher difficulty, it is therefore necessary to from source
It is improved, i.e., the material and arrangement mode of electrode is studied on head.
Surface electrode structure includes area, shape and the interelectrode distance of electrode and skin contact.Standard two-electrode method
The circle that electrode is diameter 1cm is provided, electrode spacing is 2cm (O ' Connor et al.2007), the placement location of two electrodes
Position is hit exactly for the belly of muscle of target flesh.In practical operation, by naked eyes to anatomy body surface marking more than the positioning of the position
Depending on discrimination.
General electrode uses silver-silver chloride (Ag/AgCl), when electric current passes through electrode electrolyte interface, will not produce double electricity
Layer.The characteristic of this kind of electrode is close to complete unpolarized electrode, as shown in figure 1, in Fig. 1,1 represents typical Ag/AgCl electrodes
Lead terminal, 2 represent insulation board, and 3 represent Ag/AgCl electrodes, and 4 represent conductive paste, and 5 represent skin.Ag/AgCl will be by that will contain
The conductive paste and skin contact of Cl- ions, when signal by when, as shown in formula (1) chemical equilibrium reaction maintain electric charge flowing.
AgCl+e-Ag+Cl- (1)
In order that electrode and skin have good electrical contact to export current potential, it is necessary to smear conductive paste on skin.But
Be for a long time in use, conductive paste easily dry, in addition it have to skin chemistry stimulation.Further, metal electrode and tissue fluid is (such as
Sweat etc.) or conductive paste between produce the DC potential of polarizing voltage etc, and this DC potential is easily with respiration wave, will
Cause baseline fluctuation to produce wave distortion, be also easy to cause amplifier saturation sometimes, and the performance of conducting medium can be over time
Change, electric conductivity can decline or disappear, so as to influence the quality of collection.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of using mandibular surface checking with EMG method genioglossus muscular function
Detection means, easily existed in itself by noise jamming, electromyographic signal with solving original electrode used during checking with EMG method
Easily decay in communication process, the collection of surface electromyogram signal and intractability are larger, conductive paste use causes conducting medium
The problems such as change of energy and then the quality of influence collection.
The present invention solves above-mentioned technical problem the technical scheme adopted is that providing one kind utilizes mandibular surface checking with EMG method
The detection means of genioglossus muscular function, including at least three be used for collection surface electromyographic signal acquisition electrode, wherein, described
Acquisition electrode surface is covered with least one layer of development non-woven fabrics fiber.When using three acquisition electrodes when, using one as
With reference to fixing point, two other is triangularly arranged with it.
Preferably, the silver content of the development non-woven fabrics fiber is 45%~60%, filament diameter 6-45.5um,
Fracture elongation is 40%~43%, and resistance is 10~50 Ω, and polarization potential is 38uv~42uv.
Preferably, the acquisition electrode is cylindrical, is fixed in an annular groove, and the notch size of the groove is with adopting
Colelctor electrode size is mutually suitable.The shape of the groove may be configured as similar coin shape, flying disk type, top-type or cylindrical type etc. and close
Suitable shape, groove can house the acquisition electrode, also serve as support fixture, and groove can sew the cloth for being fixed on softness
On material.
Preferably, the diameter of the acquisition electrode is 11.5mm~12.5mm, and thickness size is 3.3mm~4.3mm,
The shape of electrode, which differs, is set to the cylinder of standard, can be Elliptic Cylinder, in principle, the shape of electrode and the shape of notch can
It is arranged to any shape suitably to match.
Further, the detection means also include filtering and amplifying circuit, A/D change-over circuits, wireless transmission unit and
Power supply unit, the faint surface electromyogram signal that the filtering and amplifying circuit is used to collect acquisition electrode are amplified, filtered
Noise wave removing, the A/D change-over circuits are used to be converted to the analog signal of amplified filter circuit data signal, the wireless biography
Radio transmission of digital signals after conversion to host computer is stored, analyzed and handled by defeated unit, and said supply unit is used for
Stable voltage is provided to the detection means.
It is highly preferred that the silver content of the development non-woven fabrics fiber is 52%.
Further, the circuit transmission between the acquisition electrode and the filtering and amplifying circuit and A/D change-over circuits
Connected using shielding line.
Further, the acquisition electrode and human epidermal phase-contact surface higher than the groove top or with the groove top
Portion maintains an equal level.
Further, the wireless transmission unit is deposited for the digital circuit after conversion to be wirelessly transmitted into host computer
Storage, analysis and processing.
Further, whole mandibular surface checking with EMG method device uses group floating place technology, i.e. whole system is supplied using battery
Electricity, it is not connected with the earth, to reduce Hz noise.
Compared with prior art, the detection provided by the present invention using mandibular surface checking with EMG method genioglossus muscular function fills
To put, dry electrode is made using nano silver fibre, reduction uses conductive paste, and it polarizes, and electromotive force is small, and application is more convenient, by
Space structure in partes corporis humani position is different, therefore, electrode is fixed on soft and flexible groove base, can be applicable
In most positions of body, and comfortable wearing.According to clinical experience, it is proposed that suitable electrode size structure, more favorably
Improved in the time and space resolution ratio of lower jaw body surface detection, system uses battery powered, and group floating place technology can be to greatest extent
Interference is reduced, improves signal to noise ratio.
Brief description of the drawings
Fig. 1 is the schematic diagram for using Ag/AgCl electrodes in the prior art；
Fig. 2 is the structural representation of the detection means of the present invention using mandibular surface checking with EMG method genioglossus muscular function
Figure；
Fig. 3 (a) is the front view of the electrode described in Fig. 2；
Fig. 3 (b) is the front view that the nano silver fibre described in Fig. 2 is combined with electrode and groove；
Fig. 4 is the circuit connection of the detection means of the present invention using mandibular surface checking with EMG method genioglossus muscular function
Schematic diagram.
Embodiment
The following examples are only intended to illustrate the technical solution of the present invention more clearly, and can not limit the present invention with this
Protection domain.Some vocabulary has such as been used to censure particular elements among specification and claim.People in the art
Member is, it is to be appreciated that hardware manufacturer may call same part with different nouns.This specification and claims are not
In a manner of the difference of title is used as and distinguishes part, but it is used as the criterion of differentiation with the difference of part functionally.Say
For bright book subsequent descriptions to implement the better embodiment of the present invention, so description is to illustrate this new rule as mesh
, it is not limited to the scope of the present invention.Protection scope of the present invention is worked as to be defined depending on appended claims institute defender.
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings.
Myoelectricity is human muscle, the bioelectric result of nervous excitation generation.It can reach many targets using electromyographic signal,
Such as utilize myoelectric-controlled prosthesis, the muscular atrophy of myoelectricity stimulation therapy, diagnosis muscle strength and muscular fatigue in sports
Deng.Surface myoelectric is then the nervimuscular bioelectrical signals recorded from human skin by electrode, is had noninvasive
Property, it is simple to operate the advantages of, have a wide range of applications.Genioglossus (genioglossus, GG) be located at lower jaw and tongue it
Between, the forearm of pars oralis pharyngis is formed, is important epithelium healing dilator.GG is a pair of strong muscle, is risen from behind mandibular body
Mental spine, muscle fibre in sector disperse rearwardly and upwardly, terminate in tongue center line both sides.GG is the important muscle for maintaining epithelium healing to open,
Cause tongue body forward downward to move during contraction, increase glossopharyngeal part cross-sectional area and consolidate epithelium healing.The most of the time even
Under sleep state, GG makes partial upper airway maintain to open all in contraction state；If GG and musculus geniohyoideus
(geniohyoideus) diastole state is in, then can cause airway obstruction, causes snoring and obstructive sleep apnea
(obstructive sleep apnea, OSA).Functions and effects of the GG activities in OSA morbidities are analyzed, are fallen ill for understanding
Mechanism, guiding treatment and prevention are intervened significant.Hu Baoming etc. (2008) is it has been proved that lower jaw SEMG can be represented substantially
The change of GG muscular functions, and there is good stability, grinding for the sleep corelation behaviour such as sleep stage, sleep-respiratory
Study carefully.
As shown in Fig. 2 a kind of detection using mandibular surface checking with EMG method genioglossus muscular function disclosed in this invention fills
Put, it is simple to operate, it is easy to allow people to receive, small utility, low-power consumption, it includes at least three and is used for collection surface myoelectricity letter
Number acquisition electrode 10, acquisition electrode 10 can be set it is multiple, when using three acquisition electrodes when, one be located at human lower jawbone in
Point, as common, two other be symmetrically set under bicker 10mm with respect at mental foramen (using 10mm under median mandibular point as midpoint,
At the split 20mm of bilateral), acquisition electrode can use space electrode configuration mode, i.e., using multiple electrodes by purpose is gathered, mutually
Combined form is acquired, wherein, on the surface of acquisition electrode 10 covered with least one layer of development non-woven fabrics
Fiber 20.
The acquisition electrode 10 of the present invention using covered with development fiber 20 being fabricated to dry electrode, without using conductive paste or
Other dielectrics of person are realized as the coupling path between skin and electrode with the principle of capacitively coupled signal.Nanowire
Dimension 20 this composition, has moistureproof, ventilative, flexible, light, not combustion-supporting, mithridatism and anti-corruption using the arrangement mode of non-woven fabrics
The advantages that corrosion, the nano silver fibre electrode soft texture being made, comfortable wearing, it can be brought into close contact, agree with skin
Spend.The effect of nano silver fibre 20 is that gas current caused by myoelectricity is converted into polarization potential, and the sweat of skin in itself
After being absorbed by other fibers, combined and reacted with filamentary silver, the contact impedance of electrode can be reduced, contact impedance is small, improves
Charge conversion efficiency, play a part of similar conductive paste, but need not really smear conductive paste, and hurtless measure, no pain, user
Just, good conductive purpose can also be played.
The detection of human biological electricity, it is necessary to by the guiding of receptor-electrode, but be not any shape, size, material
The electrode that material and technique make can obtain the good result of myoelectricity guiding, because electrode material will be with tissue (bag
Include cell tissue and body fluid) contact, the not contact only in terms of electrochemistry, the effect of physics and chemistry aspect can also occur, by
In human biological electricity, myoelectricity is fainter, therefore guides the material choice relation of the acquisition electrode of myoelectricity very big.
Specifically, the silver content of the development non-woven fabrics fiber 20 on acquisition electrode 10 of the invention be 45%~
60%, it is preferred to use silver content be 52%, can so obtain the effect that preferable electric charge guides, the signal that acquisition testing goes out is strong
Degree is maximum, filament diameter 6-45.5um, and fracture elongation is 40%~43%, and resistance is 10~50 Ω, and polarization potential is
38uv~42uv, the present invention can be made electrode contact impedance keep stable, be gathered by the optimal selection to silver fiber material
The action potential waveform rule gone out is clearly easily distinguished, and the interference to signal source is small, and avoids the generation of harmful material.
The size of electrode can directly affect the performance of myoelectricity collection, and electrode is too small, and contact impedance is larger, is unfavorable for signal and adopts
Collection；Electrode is too big, although contact impedance reduces, can reach the requirement of signal acquisition, by lower jaw special construction and surface
Long-pending limitation, electrode again can not be too big, are unfavorable for greatly very much wearing, not enough comfortably.By largely clinical trial repeatedly, adopted described
Colelctor electrode 10 is fabricated to cylindric as shown in Fig. 3 (a), and its diameter D sizes are between 11.5mm~12.5mm, thickness H sizes
For 3.3mm~4.3mm, its one of them columned face contacted with surface skin can be heaved slightly upwards, have one section compared with
Small radian, the electrode size so obtained is the most suitable, and it is any suitable that certain acquisition electrode can be fabricated to other
Shape, such as cuboid etc..
Because the micro-displacement that electrode and skin surface occur can cause noise, electromyographic signal is disturbed, therefore it is solid to be additionally provided with one
Due to the annular groove 30 of the acquisition electrode, the notch size and the size of acquisition electrode 10 of the groove 30 are mutually suitable, described
The thickness of acquisition electrode 10 can be equal to or slightly higher than the depth of groove 30, and groove can fix live electrode, the development
Non-woven fabrics fiber 20 is further covered in the outer surface of the groove 30, by the outer surface of the one side of acquisition electrode 10 and groove all
Wrap, further, the annular groove 30 can be sewed in (not shown), Lower jaw support on a flexible Lower jaw support
The flexibly resilient materials such as canvas, cotton, rubber can be used to be made, by the fixation to electrode, can so avoided not
Necessary noise, make muscle accurate positioning, on the other hand, do base using soft and flexible cloth, can be applied to
Human body overwhelming majority position, movement are also convenient for, wherein, groove and electrode all design smaller, and similar button size, groove can
To be designed as any suitable shape, the material of groove can be made of conductive material, and wire can be connected directly between recessed
Trench bottom or the aperture by being opened up in bottom portion of groove pass through to be connected with acquisition electrode and reference electrode.
Shown in reference picture 4, because surface electromyogram signal is very faint, uV~mV orders of magnitude are distributed in, so needing to micro-
Weak signal is amplified the requirement that can be only achieved A/D collecting units, because human body is an electric conductor, Hz noise and external electricity
Field, magnetic field induction can all form measurement noise in human body, disturb the detection of electromyographic signal, therefore be additionally provided with and put in the detection means
Big filter circuit, A/D change-over circuits, wireless transmission unit and power supply unit, the filtering and amplifying circuit is by wire with adopting
The surface contact of colelctor electrode, the faint surface electromyogram signal for being collected to acquisition electrode is amplified and filtered out miscellaneous
Ripple, the A/D change-over circuits are used to be converted to displayable data signal, the nothing to the analog signal of amplified filter circuit
Line transmission unit is used for radio transmission of digital signals to host computer, and said supply unit is used to provide surely to the detection means
Fixed voltage.Wherein, the filtering and amplifying circuit can be by preamplifier, high-pass filter, two-stage amplifier, LPF
Device and notch filter are sequentially connected composition, and they are integrated in encapsulate in one piece of circuit board and formed, the wireless transmission unit
Using bluetooth or ZigBee, they are integrated in encapsulate in one piece of circuit board and formed, and electrode company can be also reduced by the way of integrated
The impedance of line, effectively suppresses noise jamming, and said supply unit can use small lithium battery or battery, so also can
Signal to noise ratio is improved, reduces interference, and battery durable ability is also relatively strong, is convenient for carrying, and is in or goes out conveniently to be worn on
Human body lower jaw position.Wherein, entirely detection circuit completely floatingly, is not connected with the earth, and the data signal after the A/D conversions is adopted
With wireless transmission method to host computer, stored, analyzed and handled.Avoided using being wirelessly transferred between electrode and transmitter
Line, make SEMG collection it is more portable, using floating ground technology, the circuit can be made not influenceed by the earth electrical property, can prevented
Electromagnetic interference caused by impedance circuit coupling altogether, effectively suppresses Hz noise, improves the portability of detection means.
Reference picture 3 (b), as one preferred embodiment of the invention, the acquisition electrode 10 filters with the amplification
Circuit transmission between circuit and A/D change-over circuits is connected using shielding line 40, can so reduce the external world to greatest extent
Is played a part of to interference caused by signals transmission by shielding for magnetic field caused by electromagnetic field or inside.
The present invention, as electrode material, is fabricated to the disposable electricity that need not smear conductive paste by using nano silver fibre
Pole, greatly improve signal to noise ratio, temporal resolution and the spatial resolution of SEMG signals.
It should be noted that the present invention is not limited only to mandibular surface checking with EMG method, it can also be used to the table at other positions of body
Facial muscle electro-detection.
It is worth noting that, the foregoing is only presently preferred embodiments of the present invention, the patent of the present invention is not thereby limited
Protection domain, the present invention can also carry out the improvement of material and structure to the construction of above-mentioned various parts, or using skill
Art equivalent is replaced.Therefore it is all with the present invention specification and diagramatic content made equivalent structure change, or directly or
Apply to other correlative technology fields indirectly to be similarly all contained in the range of of the invention cover.
Claims (8)
1. a kind of detection means using mandibular surface checking with EMG method genioglossus muscular function, including at least three are used to gather lower jaw
The acquisition electrode of surface electromyogram signal, it is characterised in that the acquisition electrode surface covered with least one layer of development without
Spin measuring fiber；
The acquisition electrode is cylindrical, accommodating to be fixed in an annular groove, the notch size and acquisition electrode of the groove
Size is mutually suitable；
The development non-woven fabrics fiber is also covered in the outer surface of the groove, by the outer of the one side of acquisition electrode and groove
Surface is all wrapped, and the annular groove is sewed on a flexible Lower jaw support.
2. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 1, it is characterised in that
The silver content of the development non-woven fabrics fiber is 45%~60%, filament diameter 6-45.5um, and fracture elongation is
40%~43%, resistance is 10~50 Ω, and polarization potential is 38uv~42uv.
3. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 1, it is characterised in that
The diameter of the acquisition electrode is 11.5mm~12.5mm, and thickness size is 3.3mm~4.3mm.
4. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 1, it is characterised in that
Also include filtering and amplifying circuit, A/D change-over circuits, wireless transmission unit and power supply unit, the filtering and amplifying circuit connection
The acquisition electrode, the faint surface electromyogram signal for being collected to acquisition electrode is amplified, filtering clutter, the A/
D change-over circuits connect the filtering and amplifying circuit, for being converted to data signal to the analog signal of amplified filter circuit, institute
Wireless transmission unit is stated, for by the radio transmission of digital signals after conversion to host computer, being stored, being analyzed and being handled, institute
Power supply unit is stated to be used to provide stable supply voltage to the detection means.
5. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 2, it is characterised in that
The silver content of the development non-woven fabrics fiber is 52%.
6. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 4, it is characterised in that
Circuit transmission between the acquisition electrode and the filtering and amplifying circuit and A/D change-over circuits is connected using shielding line.
7. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 4, it is characterised in that
Whole detection electric routing battery power supply, completely floatingly, is not connected with the earth.
8. the detection means of mandibular surface checking with EMG method genioglossus muscular function is utilized as claimed in claim 2, it is characterised in that
The acquisition electrode maintains an equal level with human epidermal phase-contact surface higher than the groove top or with the groove top.
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|---|---|---|---|---|
| CN102028568A (en) * | 2010-12-22 | 2011-04-27 | 中国科学院深圳先进技术研究院 | Myoelectric artificial limb control device |
| DE102011101580B4 (en) * | 2011-05-13 | 2015-03-12 | Dräger Medical GmbH | Sensor device for the electromyographic derivation of muscle signals as well as methods for the preparation of an electromyographic derivation of muscle signals and system |
| JP6047420B2 (en) * | 2013-02-19 | 2016-12-21 | 信越ポリマー株式会社 | Capacitance switch and manufacturing method thereof |
| CN203290900U (en) * | 2013-06-06 | 2013-11-20 | 郑义 | Wireless surface myoelectricity collecting instrument based on Bluetooth |
| CN103284719A (en) * | 2013-06-09 | 2013-09-11 | 邹海清 | Myoelectric electrode and myoelectric signal collecting instrument |
| CN104224170B (en) * | 2014-09-15 | 2016-03-09 | 浙江大学 | A kind of array-type flexible surface myoelectric electrode and preparation method |
| CN204698550U (en) * | 2015-04-24 | 2015-10-14 | 北京新兴阳升科技有限公司 | Utilize the myofunctional checkout gear of mandibular surface checking with EMG method genioglossus |
-
2015
- 2015-04-24 CN CN201510201411.1A patent/CN104757970B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104757970A (en) | 2015-07-08 |
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