CN103961090B - A kind ofly can to install and there is the device of electroencephalogram pole by head - Google Patents
A kind ofly can to install and there is the device of electroencephalogram pole by head Download PDFInfo
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- CN103961090B CN103961090B CN201310037752.0A CN201310037752A CN103961090B CN 103961090 B CN103961090 B CN 103961090B CN 201310037752 A CN201310037752 A CN 201310037752A CN 103961090 B CN103961090 B CN 103961090B
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Abstract
A kind of can installation and there is the device of electroencephalogram pole by head is provided, to mate the exclusive head sizes of wearer and shape based on the adjustable electrode of radial direction.Have the electrod-array be arranged on wherein can the device installed of head comprise can the head device section of installing, it interconnects to facilitate by machanical fastener can the head size of device of installing and position adjustments.Each can head install device section in be provided with resilient sleeve array.Each resilient sleeve holds single electrode, and is deformable with certainly directed.The distortion of sleeve makes the central shaft through the single electrode be contained in resilient sleeve maintain the approximately perpendicular position of plane tangent of the scalp portions be relatively positioned under electrode.
Description
Technical field
The present invention relates to a kind of electroencephalography (EEG) brain bio-feedback arrangement for rehabilitation, training or amusement, particularly relate to a kind of have from directed, can the brain bio-feedback arrangement of EEG electrode of radiai adjustment.
Background technology
Apoplexy is a kind of cerebrovas-cularaccident with high deformity and mortality rate.The principal element affecting stroke survivor's independence is hands function, and itself and daily life are closely related, such as feed and self-cleaning.Along with aged tendency of population and more and more long-lived, the neural rehabilitation after apoplexy or other cerebral-vascular accidents becomes following main challenge.
Electroencephalography (EEG:Electroencephalography) is the technology of the bioelectrical signals that a kind of measurement is generated by the cerebral cortex of brain.This signal is directly contributed relevant (such as, EEG Mental imagery, the thinking of body work and plan) with the autonomic movement from central nervous system.EEG signal is more directly relevant with the autonomous contribution with stronger signal from the patient in early stage brain soldier's stage.The current type can measuring the EEG system of these signals is non-portable, that is, they are enough large, make they to be confined to use in research experiment room environmental.This measuring system needs the tediously long cycle to prepare and calibrates the position of whole EEG electrodes.In addition, if there is no visual detector, be difficult to examine correct electrode and place, usually must be performed by skilled skilled worker.
Existing various device is used for calibrating position, EEG electrode to be kept the scalp close to patient.Such as, medicated cap is for locating EEG electrode.This electrode cap by technician at short notice (such as, about 5 minutes) realize the location of EEG electrode.After positioning of electrode, inject conducting resinl to reduce scalp-electrode impedance, thus record strong EEG signal.
But the various head device of current use locates EEG electrode still not, because they cannot adjust for the head sizes in PATIENT POPULATION and shape.Usually, conventional method uses various specific size to carry out approximate various head sizes, and elongate medicated cap roughly closely to mate different nose shapes along elastomeric material.But conventional electrode cap is similar at first head, has hemispherical.Head because of people is not hemispherical, and the head sizes approximation method of equal elongation will produce error in positioning of electrode.
Therefore, need a kind of EEG electrode locating device of improvement for prior art, the positioner with enough elastic propertys that especially a kind of quality is light, to guarantee in various head sizes and to realize correct positioning of electrode in shape.Also need correctly to locate about electrode and the visual instruction of electrode-scalp impedance in the tolerance interval being suitable for EEG signal measurement for prior art.This device conveniently can be used in the portable brain training system with minimum time in clinic and house.
Summary of the invention
For solving the problems of the technologies described above, the present invention wants a kind of brain bio-feedback arrangement, to mate the exclusive head sizes of wearer and shape, instead of as conventional electrode cap, and the spacing only between elongated electrode.
The invention provides a kind of can installation and there is the device of electroencephalogram pole by head, comprising: electrod-array, for measuring the bioelectrical signals produced by the cerebral cortex of brain, wherein, single electrode needle to the individual variation of head size and dimension can the individual variation of radiai adjustment can radiai adjustment; Multiple can the head device section of installing, bent up and down by machanical fastener in the application and removing in process of described device, to make described device section removable relative to each other; Be positioned at each can the resilient sleeve array of device section installed of head, each described sleeve holds single electrode, described resilient sleeve is deformable with certainly directed, thus the central shaft through the single electrode be contained in described resilient sleeve is maintained the approximately perpendicular position of plane tangent of the scalp portions be relatively positioned under described electrode.
In the present invention, described machanical fastener can comprise one or more hinge and combine.
In the present invention, described resilient sleeve can comprise deformable semicircle shock absorbing part further, to maintain the electrode direction of the described scalp portions be relatively positioned under described electrode.
In the present invention, described device can comprise visual detector further, to show the information relevant with resistance value, EEG value or controling parameters.
In the present invention, described visual detector can comprise one or more light emitting diode.
In the present invention, described device can comprise the preamplifier being close to described electrode further.
In the present invention, described device can amplifier be individual unit or array.
In the present invention, described device can comprise further auxiliary can the head branch of installing, described branch comprises reference electrode adjustable with ear reference position.
In the present invention, described device can comprise the cannelure arranged in described resilient sleeve further, with hold electrodes lower limb.
The present invention also provides a kind of system of the neural rehabilitation for comprising large Brain Wave Biofeedback, wherein comprises above-mentioned can installation and have the device of electroencephalogram pole by head.
Have the electrod-array be positioned at wherein can head install device comprise multiple can head install device section, they are interconnected by machanical fastener, with facilitate can head install device size and location regulate.Resilient sleeve (sleeve) array be arranged on each can head install device section in.Each resilient sleeve holds single electrode, and deformable.The distortion of sleeve makes the central shaft through the single electrode be contained in resilient sleeve remain on position approximately perpendicular with the plane tangent of the scalp portions be positioned under electrode.
Accompanying drawing explanation
Fig. 1 be according to after the wearing of the preferred embodiment of the present invention by the perspective view of the brain training devices of EEG wear-type (headset) module composition;
Fig. 2 schematically illustrates the expansion of the head sizes in radial directions based on population survey;
Fig. 3 A and 3B describe for of the present invention can the top view of anchor point of the electrod-array of device installed of head and side view;
Fig. 4 A and 4B is front view and the side view of the EEG wear-type module of device in Fig. 1 respectively;
Fig. 5 is for the top view of the EEG wear-type module of the device in Fig. 1 of 64 passage EEG, instruction EEG electrode position, and its EEG electrode position based on international 10/20 system distributes, and covers the center of cerebral activity, frontal bone and parietal region;
Fig. 6 is the cross sectional view of the details from directed EEG electrode of the wear-type inside modules having set forth attachment device in FIG;
Fig. 7 A and 7B be at a certain distance with the cross sectional view from directed EEG electrode in Fig. 6 of angle and skin surface contact, such electrode can be arranged on there are various sizes and shape head on; Fig. 7 B show the electrode with central shaft from directional nature, this central shaft is through electrode remain on position approximately perpendicular with the plane tangent of the scalp portions be positioned under electrode;
Fig. 8 is to be arranged on head or when from the beginning going up apparatus for removing and be bent upwards the left and right branch of EEG wear-type module by device, the front view of the EEG wear-type module of the device in Fig. 1;
Fig. 9 is when the left and right branch of EEG wear-type module is attached on head surface, the front view of the EEG wear-type module of the device in Fig. 1;
Figure 10 A and 10B is the rear perspective view of the EEG wear-type module of device in Fig. 1, shows when device is worn along the left and right reference electrode that axle regulates;
Figure 11 is the top view from directed EEG electrode in Fig. 6, shows the luminous pattern propagated for visual biofeedback signals;
Figure 12 is the top view of the EEG wear-type module of device in Fig. 1, indicates the luminous color pattern that the optical signal indicator in the Figure 11 being arranged on device outside is propagated.
Detailed description of the invention
Refer to accompanying drawing, Fig. 2 shows according to of the present invention, by the expansion of head sizes in radial directions compared with standard head shape and size (see list of references 1-6), wherein, alphabetical designation A represents little head sizes, and alphabetical designation B represents relative large head sizes.Use these to measure and expand, present invention produces a kind of new design for the installable electrode array device of head.This device relies on can the electrode of radiai adjustment, and relative to the spring caps of the routine at the interval between side direction elongated electrode, this electrode of radiai adjustment can mate single head sizes.
As shown in Figure 3, can use and adhere on the head of the wearer with reference to the accurate pointing on the summit (Cz) found by the nasion 100 and occipital protuberance 200 and the ear ear acupoint 300 and location by the device installed of head, this summit is the central point between the nasion 100 and occipital protuberance 200, is also the central point between the left and right ear acupoint 300.This device also aligns with centrage, and this centrage extends along the nasion 100 and occipital protuberance 200.
Based on the measurement in Fig. 2 and 3 and location, Fig. 1 show can measure the bioelectrical signals that produced by the cerebral cortex of brain can the device 181 installed of head, configure this device to make single electrode needle can radiai adjustment to the individual variation in head size and dimension.Device in Fig. 1 be for brain training and rehabilitation system in selective sections.
See Figure 4 and 5, EEG can comprise the EEG positioning of electrode 30 covering the center of skull of head, frontal bone and parietal region according to international 10/20 system by the device 181 installed of head.Numeral 30 is used to indicate whole electrode structure, and bioelectrical signals transducing part (the actual charging portion of electrode) is shown in Fig. 6 by reference numerals 32() instruction.Can head install device 181 comprise center fixture branch 21, left device branch 22, right device branch 23 and auxiliary device branch 24.Auxiliary branch 24 comprises ear reference electrode 31n behind left and right.EEG electrode 30 each is attached to EEG can on the predetermined electrode position in the device installed of head.Establishing criteria 10/20 system, arrange in the vertical and horizontal direction respectively interval that electrode has 20% of the spacing of nasion 100-occipital protuberance 200 with 20% of gill ear distance interval.For the EEG of 64-passage, the vertical dimension between electrode decreases half, becomes 10% of the spacing of nasion 100-occipital protuberance 200, and horizontal range also becomes 10% of ear ear distance.
Fig. 6 is the cross sectional view of electrode 30.Bio electricity transducing part 32 is arranged in elastic electrode sleeve 31.Elastic electrode sleeve 31 is one-body molded alternatively, comprises semicircle shock absorbing part 35.This configuration makes resilient sleeve 31 be compressed in certain distance, with the direction changing it to adapt to various head sizes and shape, as shown in figs. 7 a-b.As shown in figs. 7 a-b, electrode 32 is arranged in resilient sleeve 31, make when the resilient sleeve with shock absorbing part 35 deforms, the central shaft through electrode 32 maintains approximate vertical with the plane tangent of the scalp portions be positioned under electrode position, for certainly directed.
EEG electrode 32 is arranged in sleeve, and has the end/lower limb slipped in the cannelure 33 of resilient sleeve 31.EEG sensing electrode 32 is slipped in self-orientating electrode sleeve 31, and the direction of fixing cable 39, to make the probability of EEG electrode dislocation minimum.
At resilient sleeve 31 directly close to the part of patient's scalp, define cavity 34.This cavity is filled with conducting resinl usually, to provide the contact between scalp and electrode.Or deformable conductive material can filled chamber 34, to provide required skin-electrode impedance.The ring edge of resilient sleeve 31 also can cosily be arranged on head, makes the leakage carrying out self-electrode in head movement process minimum.Conducting resinl can reduce the skin-electrode impedance between the scalp 80 of EEG electrode 32 and head.This design can reduce skin-electrode impedance to strengthen EEG signal quality.
See Fig. 8 and 9, EEG can the head portion that parts on the left side 22 of device 181 of installing and part portion 23 on the right side can using and removing in process at device 181, bent up and down by machanical fastener (alternatively by hinge in conjunction with 61 formation).Preferably, branch's relative motion each other avoid EEG can the device installed of head in application process, electrode is in the portion that parts on the left side 22 of this device and the distortion parting place of portion 23 on the right side.But electrode sleeve 31 is by radial deformation, and electrode position place needed on patients head is from directed (that is, the central shaft of electrode is substantially perpendicular to the line tangent line of the scalp under comparative electrode).Wherein, also show the indicator 410 for calibrating.
Figure 10 shows that be positioned at can the left reference electrode 25 at place of auxiliary branch 24 of device 181 installed of head and right reference electrode 26.Left reference electrode 25 and right reference electrode 26 can be regulated along axle, to contact with ear reference position with the angle selected.Wherein, also show the indicator 420 and 430 for calibrating.
See Figure 11 and 12, visual biofeedback signals indicator 30 is combined in electrode design, with color pattern is propagated into be arranged on this device outside aperture on.Optical signal indicator can show skin-electrode resistance value, EEG value or controling parameters.Optical signal indicator can be one or more LED37 with single or multicolour.Color pattern and intensity represent impedance, EEG value or controling parameters.This color is not limited to only contain above pattern and parameter.Wherein, the single or multiple color patterns 500 for optical signal indicator are shown.
In order to provide better signal to noise ratio for EEG signal, preamplifier can be adopted in fact closely to press close to each electrode.This amplifier can be arranged with individual unit or with the form of array.
As above set, the invention provides a kind of bio-feedback arrangement for the brain training in hospital and family of improvement, this device be portable, be easy to use and make time minimum.Although describe foregoing invention with regard to each embodiment and example, should be understood that, as long as in claim and equivalent statement thereof, other embodiment is also in protection scope of the present invention.And above specific example, only with explaining, is not to restriction of the present disclosure.Herein, disclosed whole lists of references are incorporated to by reference.
List of references:
[1]R.Ball,C.Shu,P.C.Xi,M.Rioux,Y.Luximon,andJ.Molenbroek,“AcomparisonbetweenChineseandCaucasianheadshapes,”AppliedErgonomics,vol.41,pp.832–839,2010
[2]Z.Zhuang,S.Benson,D.“Viscusi.Digital3-DheadformswithfacialfeaturesrepresentativeofthecurrentU.S.workforce,”Ergonomics;53:661–71,2010
[3]ChinaNationalInstituteofStandardization.(1998)CNISGB/T2428:1998.Head-facedimensionsofadultsbyXiaoH,HuaDH,YangTX,ZhangZB,BiGX,LiuJM.Beijing,China:GeneralAdministrationofQualitySupervision,InspectionandQuarantineofthePeople’sRepublicofChina.
[4]ChinaNationalInstituteofStandardization.(1998)CNISGB/T2428:1998.Head-facedimensionsofadultsbyXiaoH,HuaDH,YangTX,ZhangZB,BiGX,LiuJM.Beijing,China:GeneralAdministrationofQualitySupervision,InspectionandQuarantineofthePeople’sRepublicofChina.
[5]ChinaNationalInstituteofStandardization.(1981)CNISGB242881.HeadstylesofadultsbyBeijingInstituteofLaborProtection.Beijing,China:GeneralAdministrationofQualitySupervision,InspectionandQuarantineofthePeople’sRepublicofChina.
[6]Y.Yu,S.Benson,W.Cheng,J.Hsiao,Y.Liu,Z.ZhuangandW.Chen.“Digital3-DHeadformsRepresentativeofChineseWorkers”Ann.Occup.Hyg.,pp.1-10,2011.
Claims (10)
1. can install and there is a device for electroencephalogram pole by head, it is characterized in that, comprising:
Electrod-array, for measuring the bioelectrical signals produced by the cerebral cortex of brain, wherein, single electrode needle can radiai adjustment to the individual variation of head size and dimension;
Multiple can head install device section;
The machanical fastener of the described device section of multiple connection, wherein, is bent by described machanical fastener in the application and removing in process of described device, to make described device section removable relative to each other up and down;
Be positioned at each can the resilient sleeve array of device section installed of head, each described sleeve holds single electrode, described resilient sleeve is deformable with certainly directed, thus the central shaft through the single electrode be contained in described resilient sleeve is maintained the approximately perpendicular position of plane tangent of the scalp portions be relatively positioned under described electrode;
Wherein, described at least one, resilient sleeve comprises shock absorbing part, and described shock absorbing part is configured to deformable, in order to maintain the electrode direction of the described scalp portions be relatively positioned under described single electrode.
2. can install and have the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described machanical fastener comprises one or more hinge and combines.
3. can install and have the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described shock absorbing part is semicircular.
4. can install and have the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described device comprises visual detector further, to show the information relevant with resistance value, EEG value or controling parameters.
5. can install and have the device of electroencephalogram pole by head according to claim 4, it is characterized in that, described visual detector comprises one or more light emitting diode.
6. can install and have the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described device comprises the preamplifier being close to described electrode further.
7. can install and have the device of electroencephalogram pole by head according to claim 6, it is characterized in that, described preamplifier is individual unit or array.
8. can install and there is the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described device comprise further auxiliary can the head branch of installing, described branch comprises reference electrode adjustable with ear reference position.
9. can install and have the device of electroencephalogram pole by head according to claim 1, it is characterized in that, described device comprises the cannelure arranged in described resilient sleeve further, with hold electrodes lower limb.
10. for comprising a system for the neural rehabilitation of large Brain Wave Biofeedback, it is characterized in that, comprising described in claim 1 and can install and there is the device of electroencephalogram pole by head.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037752.0A CN103961090B (en) | 2013-01-31 | 2013-01-31 | A kind ofly can to install and there is the device of electroencephalogram pole by head |
| EP14152680.6A EP2762069B1 (en) | 2013-01-31 | 2014-01-27 | Brain biofeedback device with radially adjustable electrodes |
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| CN201310037752.0A CN103961090B (en) | 2013-01-31 | 2013-01-31 | A kind ofly can to install and there is the device of electroencephalogram pole by head |
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| CN103961090A CN103961090A (en) | 2014-08-06 |
| CN103961090B true CN103961090B (en) | 2016-03-30 |
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| EP3064130A1 (en) * | 2015-03-02 | 2016-09-07 | MindMaze SA | Brain activity measurement and feedback system |
| CN105342608A (en) * | 2015-12-15 | 2016-02-24 | 重庆海坤医用仪器有限公司 | Brain wave acquisition electrode |
| US9820670B2 (en) * | 2016-03-29 | 2017-11-21 | CeriBell, Inc. | Methods and apparatus for electrode placement and tracking |
| CN106344010B (en) * | 2016-11-12 | 2023-10-17 | 北京视友科技有限责任公司 | Head band for electroencephalogram biological signal acquisition |
| CN109310344B (en) * | 2017-02-22 | 2022-05-17 | 玫莫里Md股份有限公司 | Apparatus and method for performing electroencephalography |
| EP4325591A2 (en) * | 2017-12-01 | 2024-02-21 | Zeto, Inc. | Headset and electrodes for sensing bioelectrical potential and methods of operation thereof |
| CN108445045B (en) * | 2018-01-16 | 2021-02-09 | 天津大学 | Tightening type folding electrode frame for electrical tomography |
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