CN206565944U - A kind of measuring system based on sEMG muscle and deep electric signals - Google Patents
A kind of measuring system based on sEMG muscle and deep electric signals Download PDFInfo
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- CN206565944U CN206565944U CN201621274074.5U CN201621274074U CN206565944U CN 206565944 U CN206565944 U CN 206565944U CN 201621274074 U CN201621274074 U CN 201621274074U CN 206565944 U CN206565944 U CN 206565944U
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Abstract
The utility model discloses a kind of measuring system based on sEMG muscle and deep electric signals, including：Measuring electrode, electromyographic signal acquisition device and data processing equipment, measuring electrode are monopolar needle electrode or silk electrode；Measuring electrode is connected with electromyographic signal acquisition device；Electromyographic signal acquisition device is connected with data processing equipment；Data processing equipment is used for the electromyographic signal gathered according to electromyographic signal acquisition device, obtains the corresponding index parameters of sEMG.Using the utility model embodiment, existing surface electrode is substituted by monopolar needle electrode or silk electrode, can detect that the electrical activity of single targeted muscles and muscle and deep, compensate for surface electrode can only recording electrode layer muscle group electrical activity summation defect, with preferable clinical value.
Description
Technical field
The utility model is related to technical field of measuring equipment, more particularly to a kind of survey based on sEMG muscle and deep electric signals
Amount system.
Background technology
At present, clinically muscle electrical signal detection (abbreviation checking with EMG method) mainly includes surface electromyography (surface
Electromyography, abbreviation sEMG) and concentric circles pin electrode electromyogram (abbreviation needle EMG), it is both that flesh is fine
The weak electrical potentials difference that dimension is produced when shrinking amplifies, recorded, changing into data signal and analyzed to reflect neuromuscular function shape
Condition.This potential difference changes because of neuromuscular structure, the change of function, and electromyographic signal during different muscle fibers contracts can also be sent out
Raw corresponding change, i.e., muscle is constituted and nature difference can be shown in electromyographic signal figure, and this also believes for surface myoelectric
Number diagnosis and muscle function evaluation provide the foundation.
SEMG is to use circular silver-silver chloride electrode piece to be affixed on surveyed muscle skin surface to detect its electric signal, telecommunications
Number after electromyographic signal acquisition device is gathered, corresponding signal processing apparatus (such as computer or carrying data processing software is passed to
SEMG systems) handled, obtain corresponding sEMG.This surface electrode record is electrode layer muscle group emg response
Summation, it is impossible to the myoelectrical activity of one piece of muscle of accurate recording, can not especially record deep part muscle myoelectricity (such as multifidus,
Tibialis posterior etc.).By taking multifidus as an example, multifidus is located at backbone most inner side, and at neutral spine position, multifidus, which shrinks, undertakes holding
Ability of the backbone hardness more than 2/3, is played an important role (such as when maintaining spinal stabilization and control spinal motion：Waist
2/3) contribution of the multifidus to L4/5 segmental stabilizations be up to, but multifidus is based on deep layer muscle fibre, and the overwhelming majority is by shallow-layer
Erector spinae is covered, and only L5/S1 very littles part is shallow-layer fiber.Current sEMG is to concentrate on this for the functional analysis of multifidus
One fritter shallow-layer multifidus, the myoelectricity of collection is substantially disturbed by myoelectricities such as erector spinae around, gluteus maximus, as a result in the presence of substantially inclined
Difference.
Although and needle EMG pointedly gather single targeting muscle and deep, being typically only capable to recorded the one of muscle
Fraction electrical activity (current-carrying part 0.1-0.5mm), or even several action potentials can only be collected, clinically it is mainly used in god
Analysis is carried out through conduction of velocity, myoelectricity wave amplitude etc. and judges neuromuscular damage situation, it is impossible to analyze the activity level and work(of muscle
Can situation.
Therefore, how deep target muscle flesh is accurately and reliably detected by the way of a kind of improvement based on sEMG systems
Electrical activity is to reflect its activity and functional status, the problem of be a urgent need to resolve.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of measurement system based on sEMG muscle and deep electric signals
System, substitutes existing concentric electrode by monopolar needle electrode or silk electrode, can detect that single targeted muscles and muscle and deep
Electrical activity, compensate for surface electrode can only recording electrode layer muscle group electrical activity summation defect, with preferable clinic
Application value.
To solve above technical problem, the utility model embodiment provides a kind of survey based on sEMG muscle and deep electric signals
Amount system, including：Measuring electrode, electromyographic signal acquisition device and data processing equipment, the measuring electrode be monopolar needle electrode or
Silk electrode；
The measuring electrode is connected with the electromyographic signal acquisition device；
The electromyographic signal acquisition device is connected with the data processing equipment；
The data processing equipment is used for the electromyographic signal gathered according to the electromyographic signal acquisition device, obtains sEMG phases
The index parameter answered.
Further, the monopolar needle electrode includes pin electrode syringe needle, pin electrode needle body and pin electrode needle handle；
The pin electrode syringe needle is conductive syringe needle；
The pin electrode needle body is insulation needle body；
The pin electrode needle handle is conductive needle handle.
Further, a diameter of 0.25-0.65 millimeters of the monopolar needle electrode, length is 20-75 millimeters；
The length of the pin electrode syringe needle is 1-20 millimeters.
Further, the measuring electrode is connected with the electromyographic signal acquisition device, is specially：
The pin electrode needle handle of the pin electrode is connected by crocodile clip electrode wires with the electromyographic signal acquisition device；
Or, the pin electrode needle handle of the pin electrode is connected by the cable of attachment means and the electromyographic signal acquisition device
Connect.
Further, the silk electrode is copper wire electrode, platinum wire electrode or steel wire electrode.
Further, a diameter of 0.08-0.50 millimeters of the silk electrode.
Further, the measuring electrode is connected with the electromyographic signal acquisition device, is specially：
The wire electrode of the silk electrode is connected by crocodile clip electrode wires with the electromyographic signal acquisition device；
Or, the wire electrode of the silk electrode passes through attachment means and the cable connection of the electromyographic signal acquisition device.
A kind of measuring system based on sEMG muscle and deep electric signals that the utility model embodiment is provided, including：Measurement
Electrode, electromyographic signal acquisition device and data processing equipment, the measuring electrode are monopolar needle electrode or silk electrode.Compared to existing skill
Art obtains sEMG using surface electrode measurement electromyographic signal, and technical solutions of the utility model are improved to measuring electrode, are improved
Pin electrode or silk electrode combination sEMG afterwards can effectively and reliably detect the electrical activity of single targeted muscles and muscle and deep,
It is a kind of alternative effective ways for assessing single targeting muscle and deep activity level and functional status.In addition, this practicality is new
Type is by pin electrode or silk application of electrode in sEMG measurement, and several action potentials can only be collected by overcoming clinically pin electrode
Muscle activity level and function status can not be analyzed and the low defect of clinical value, also overcome those skilled in the art's
Technology prejudice.
Brief description of the drawings
Fig. 1 is a kind of knot of the embodiment for the measuring system based on sEMG muscle and deep electric signals that the utility model is provided
Structure schematic diagram；
Fig. 2 is a kind of structural representation of the embodiment for the monopolar needle electrode that the utility model is provided；
Fig. 3 is a kind of structural representation of the embodiment for the silk electrode that the utility model is provided.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
It is a kind of implementation for the measuring system based on sEMG muscle and deep electric signals that the utility model is provided referring to Fig. 1
The structural representation of example, the measuring system includes：Measuring electrode 101, electromyographic signal acquisition device 102 and data processing equipment 103.
Wherein, measuring electrode 101 includes monopolar needle electrode or silk electrode.Measuring electrode 101 is connected with electromyographic signal acquisition device 102.Flesh
Electrical signal collection device 102 is connected with data processing equipment 103.Data processing equipment 103 is used for according to electromyographic signal acquisition device institute
The electromyographic signal of collection, obtains the corresponding index parameters of sEMG.
In the present embodiment, the different collection cable of 102 points of electromyographic signal acquisition device, every cable is a passage, often
Individual passage has 3 electrodes, is respectively：2 recording electrodes, 1 reference electrode/ground electrode.Use one in the single same part of muscle
Bar passage, bilateral muscle is two passages.At present clinically using it is more be 4 passages, 8 passages sEMG collectors,
There are 16 passages, 20 passages, can be extended or supplement according to clinical practice and research needs.
In the present embodiment, data processing equipment 103 can be computer or other data processors, for that will collect
Electromyographic signal is handled through fast Fourier transform (FFT) spectrum analysis program, extract the AEMG of electric signal when surveying contraction of muscle,
The indexs such as RMS, MF, MPF and LZ complexity, and analyze median frequency slope (median frequency slope, MFs),
The indexs such as frequency of average power slope (mean power frequency slope, MPFs).Again using statistical softwares such as SPSS
Data are carried out in statistical analysis, including group using corresponding statistical method, compared between group, correlation analysis etc., draw corresponding
SEMG, result and conclusion.The data processing method is prior art, be will not be repeated here.
In the present embodiment, referring to Fig. 2, Fig. 2 is a kind of knot of the embodiment for the monopolar needle electrode that the utility model is provided
Structure schematic diagram.As shown in Fig. 2 the monopolar needle electrode includes pin electrode syringe needle, pin electrode needle body and pin electrode needle handle；Pin electrode pin
Head is conductive syringe needle；Pin electrode needle body is the needle body of parcel insulated paint；Pin electrode needle handle is conductive needle handle.
In the present embodiment, pin electrode syringe needle is used to gather myoelectricity, and pin electrode needle handle is to be conductively connected electromyographic signal collection
Device 102.The pin electrode needle body is parcel insulated paint needle body, the interference for avoiding superficial muscle myoelectricity, pointedly according to deep layer
The electric signal of muscle changes the function that muscle is surveyed in analysis, judgement nerve and muscle damage situation, and can contrast before and after treatment draw
Function lapses to situation and curative effect is judged.
In the present embodiment, a diameter of 0.25-0.65 millimeters of monopolar needle electrode, select the thinner electricity of diameter as far as possible
Pole, with mitigate punctures cutaneous pain (can before experiment in skin surface at survey muscle positioning smear a thick layer
Compound lidocaine ointment local anaesthesia).The length of monopolar needle electrode is 20-75 millimeters, can be according to muscle anatomy position and shape
State structure determination pin is long.The length of monopolar needle electrode syringe needle is 1-20 millimeters, can be according to the form and thickness of surveyed muscle
To determine.The length of pin electrode needle handle is defined by that can connect crocodile clip electrode wires.
In the present embodiment, measuring electrode 101 is connected with electromyographic signal acquisition device 102, is specially：The pin of monopolar needle electrode
Electrode needle handle is connected by crocodile clip electrode wires with electromyographic signal acquisition device 102.Or, the pin electrode needle handle of monopolar needle electrode leads to
Cross the cable connection of attachment means and electromyographic signal acquisition device 102.
In the present embodiment, measuring electrode is from the advantage of improvement monopolar needle electrode：1st, syringe needle conduction collection myoelectricity portion
Divide longer, more action potential can be gathered to analyze the function situation of muscle.2nd, needle body insulation can avoid superficial muscle myoelectricity
Interference, analysis pointedly can be changed according to the electric signal of muscle and deep and survey the function of muscle, judgement neuromuscular damage
Condition of the injury condition, and can contrast before and after treatment show that function lapses to situation and curative effect is judged.3rd, acquisition electrode directly contacts muscle,
Reflection to muscle Frequency Index feature is more sensitive compared with surface electrode, can more directly, more effectively reflect muscle function shape
Condition.4th, it is a kind of the effective of myoelectrical activity for assessing single targeting muscle and deep to combine improvement monopolar needle electrode using sEMG systems
Instrument, compensate for surface electrode can only under recording electrode muscle group electrical activity summation defect.
Meanwhile, can be using the on-insulated monopolar needle electrode in needle body surface, the electric signal of the shallow muscle of acquisition tables.This pin electrode
The time domain index of surveyed myoelectricity and surface electrode are perfectly correlated, can more reflect spectrum signature compared with surface electrode in terms of frequency-domain index
Change, and nonlinear analysis result is identical with surface electrode.Clinically can be using disposable sterilized acupuncture needle (according to surveyed muscle
From different-diameter, the acupuncture needle of length), it is low to take easy, cost, with great clinical value.Flow chart is not except
Outside need to being improved to pin electrode, remaining is with improvement monopolar needle electrode.
In the present embodiment, referring to Fig. 3, Fig. 3 is that a kind of structure of the embodiment for the silk electrode that the utility model is provided is shown
It is intended to.As shown in figure 3, this thread electrode includes：Wire guide and wire electrode.Wherein, wire electrode is built in wire guide.Silk electrode is not
The advantage of improvement pin electrode can only be possessed, while pain when can mitigate contraction of muscle under pin electrode.Silk electrode subject exists
It is easy for patients to accept almost without pain during contraction of muscle, with preferable clinical value.
In the present embodiment, silk electrode can be, but not limited to as copper wire electrode, platinum wire electrode or steel wire electrode.Wire electrode
Requirement be：Low ESR, high sensitivity does not influence on output impulse wave, middle low frequency wave.A diameter of the 0.08 of wire electrode to
0.50 millimeter, and stainless steel wire diameter 0.16mm specifications are more soft, also there is certain rigidity, can recommend.In addition, silk electrode
Enamel-covered wire can be selected, its outer layer insulation can carry out paint removal to surface according to requirement of experiment and go insulation with conduction.
In the present embodiment, the wire electrode of silk electrode can according to above-mentioned pin electrode structural improvement so that front end is without cease
Edge is with conduction collection myoelectricity, and center section is completely insulated to avoid superficial layer muscle myoelectricity, and end is on-insulated to be conductively connected flesh
Electrical signal collection device 102.
In the present embodiment, a diameter of 0.25-0.65 millimeters of silk electrode wire guide, select the thinner pin of diameter as far as possible
Head, with mitigate punctures cutaneous pain (can before experiment in skin surface at survey muscle positioning smear a thick layer
The local anaesthesia of compound lidocaine ointment), length is 20-75 millimeters, can be determined, led according to muscle anatomy position and morphosis
Pipe has graduated scale, is easy to depth to judge.
In the present embodiment, the application method of silk electrode is：Wire electrode is directed into by deep layer flesh using disposable wire guide
Meat, wire electrode is built in inside wire guide, and with recording electrode, inserting needle to deep layer surveys muscle (depth is according to muscle solution at positioning
Cut open position, mostly 2~5cm), treat that ultrasound determines that position backed off after random syringe needle (measures external electrode line length, after exiting before exiting
External electrode line length is measured again, it is ensured that silk electrode is not shifted).Ground electrode vertical 1.5~2.0cm of inserting needle iontophoresis electrodes silk is
Can.Two recording electrodes are at a distance of 0.5~1cm, and ground electrode is on the outside of recording electrode at 3~5cm.
In order to which technical solutions of the utility model are better described, the measurement procedure step of sEMG combination pin electrodes is specifically wrapped
Include：1st, improvement pin electrode prepares；2nd, pendulum mass position, position and mark electrode points；3rd, using compound benefit because of ointment skin surface fiber crops
It is liquor-saturated；4th, alcohol degreasing is sterilized；5th, pin electrode punctures skin and surveys muscle and deep until entering；6th, ultrasonic wave positioning pin electrode position
Put；7th, the connecting line with sEMG machines is connected (i.e. myoelectricity collection signalling means and data processor)；8th, the maximum myoelectricity of detection muscle
The electromyographic signals such as value, endurance；9th, enter line program processing to electromyographic signal, extract time domain, frequency domain and nonlinear indicator；10th, apply
The statistical softwares such as SPSS and corresponding statistical method are analyzed the data obtained, draw EMG results and conclusion.
In order to which technical solutions of the utility model are better described, the measurement procedure step of sEMG zygomite electrodes is specifically wrapped
Include：1st, improvement silk electrode prepares, and is placed in wire guide；2nd, pendulum mass position, position and mark electrode points；3rd, using compound profit
More because of the anesthesia of ointment skin surface；4th, alcohol degreasing is sterilized；5th, pin electrode punctures skin and surveys muscle and deep until entering；6th, surpass
Acoustic location pin electrode position, and measure an electrode length is stayed outside skin；7th, ensure that silk electrode position is constant, exit syringe needle；8、
An electrode length is stayed outside measurement skin again, confirms that silk electrode is not shifted；9th, the connecting line with sEMG machines is connected, and (i.e. myoelectricity is adopted
Collect signalling means and data processor)；10th, the electromyographic signal such as the maximum myoelectricity value of detection muscle, endurance；11st, electromyographic signal is carried out
Program processing, extracts time domain, frequency domain and nonlinear indicator；12nd, using the statistical softwares such as SPSS and corresponding statistical method to gained
Data are analyzed, and draw EMG results and conclusion.
Therefore, a kind of measuring system based on sEMG muscle and deep electric signals that the utility model embodiment is provided,
Including：Measuring electrode 101, electromyographic signal acquisition device 102 and data processing equipment 103, the measuring electrode are improvement monopole pin electricity
Pole or silk electrode.Compared to prior art sEMG, technical solutions of the utility model are obtained using surface electrode measurement electromyographic signal
Measuring electrode is improved, the pin electrode or silk electrode combination sEMG after improvement can effectively and reliably detect single targeting
The electrical activity of muscle and muscle and deep, is a kind of single targeting muscle and deep activity level of alternative assessment and functional status
Effective ways.In addition, the utility model by pin electrode or silk application of electrode in sEMG measurement, overcome clinically concentric circles
Pin electrode can only collect that several action potentials can not analyze muscle activity level and function status and clinical value is low
Defect, also overcomes the technology prejudice of those skilled in the art.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a kind of measuring system based on sEMG muscle and deep electric signals, including：Measuring electrode, electromyographic signal acquisition device and data
Processing unit, it is characterised in that the measuring electrode is monopolar needle electrode or silk electrode；
The measuring electrode is connected with the electromyographic signal acquisition device；
The electromyographic signal acquisition device is connected with the data processing equipment.
2. the measuring system according to claim 1 based on sEMG muscle and deep electric signals, it is characterised in that the monopole
Pin electrode includes pin electrode syringe needle, pin electrode needle body and pin electrode needle handle；
The pin electrode syringe needle is conductive syringe needle；
The pin electrode needle body is insulation needle body；
The pin electrode needle handle is conductive needle handle.
3. the measuring system according to claim 2 based on sEMG muscle and deep electric signals, it is characterised in that the monopole
A diameter of 0.25-0.65 millimeters of pin electrode, length is 20-75 millimeters；
The length of the pin electrode syringe needle is 1-20 millimeters.
4. the measuring system based on sEMG muscle and deep electric signals according to Claims 2 or 3, it is characterised in that described
Measuring electrode is connected with the electromyographic signal acquisition device, is specially：
The pin electrode needle handle of the monopolar needle electrode is connected by crocodile clip electrode wires with the electromyographic signal acquisition device；
Or, the pin electrode needle handle of the monopolar needle electrode is connected by the cable of attachment means and the electromyographic signal acquisition device
Connect.
5. the measuring system according to claim 1 based on sEMG muscle and deep electric signals, it is characterised in that the silk electricity
Extremely copper wire electrode, platinum wire electrode or steel wire electrode.
6. the measuring system according to claim 1 based on sEMG muscle and deep electric signals, it is characterised in that the silk electricity
A diameter of 0.08-0.50 millimeters of pole.
7. the measuring system based on sEMG muscle and deep electric signals according to claim 5 or 6, it is characterised in that described
Measuring electrode is connected with the electromyographic signal acquisition device, is specially：
The wire electrode of the silk electrode is connected by crocodile clip electrode wires with the electromyographic signal acquisition device；
Or, the wire electrode of the silk electrode passes through attachment means and the cable connection of the electromyographic signal acquisition device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378848A (en) * | 2018-02-11 | 2018-08-10 | 宁波工程学院 | Muscular movement unitary space location estimation method |
| CN111513713A (en) * | 2020-04-30 | 2020-08-11 | 中山大学附属第一医院 | Method for evaluating body muscle cerebral cortex movement representative region and application thereof |
-
2016
- 2016-11-24 CN CN201621274074.5U patent/CN206565944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378848A (en) * | 2018-02-11 | 2018-08-10 | 宁波工程学院 | Muscular movement unitary space location estimation method |
| CN111513713A (en) * | 2020-04-30 | 2020-08-11 | 中山大学附属第一医院 | Method for evaluating body muscle cerebral cortex movement representative region and application thereof |
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