CN108309291A - A kind of flexible contact electrode for encephalograms and preparation method thereof - Google Patents
A kind of flexible contact electrode for encephalograms and preparation method thereof Download PDFInfo
- Publication number
- CN108309291A CN108309291A CN201810198860.9A CN201810198860A CN108309291A CN 108309291 A CN108309291 A CN 108309291A CN 201810198860 A CN201810198860 A CN 201810198860A CN 108309291 A CN108309291 A CN 108309291A
- Authority
- CN
- China
- Prior art keywords
- electrode
- fixed
- flexible
- brain electricity
- slice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009975 flexible effect Effects 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 210000004556 brain Anatomy 0.000 claims abstract description 53
- 239000000499 gel Substances 0.000 claims abstract description 52
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000005611 electricity Effects 0.000 claims abstract description 47
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 46
- 239000010703 silicon Substances 0.000 claims abstract description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000741 silica gel Substances 0.000 claims abstract description 27
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 210000004761 scalp Anatomy 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000010408 film Substances 0.000 claims description 5
- 239000007772 electrode material Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000002070 nanowire Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- -1 Methylsiloxane Chemical class 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000012149 noodles Nutrition 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 241000557133 Hunnemannia fumariifolia Species 0.000 description 18
- 239000010944 silver (metal) Substances 0.000 description 17
- 229910021607 Silver chloride Inorganic materials 0.000 description 14
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 14
- 238000012360 testing method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 5
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 206010070835 Skin sensitisation Diseases 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 239000010946 fine silver Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 231100000370 skin sensitisation Toxicity 0.000 description 2
- 208000014644 Brain disease Diseases 0.000 description 1
- 208000018152 Cerebral disease Diseases 0.000 description 1
- 208000032274 Encephalopathy Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000019695 Migraine disease Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 230000001037 epileptic effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 206010027599 migraine Diseases 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Materials Engineering (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention belongs to electrophysiologicalsignal signal detection technical field, specially a kind of flexible electrode for encephalograms and preparation method thereof.Electrode for encephalograms is made of flexible silicon gel electrode piece and electrode base.Flexible silicon gel electrode piece upper layer is flexible layer of silica gel, and lower layer is composite conductive layers, and the electrode slice after cutting includes circular electrode and connection handle；Electrode base includes：The fixing nut of the outer fixed card buckle of electrode slice, electrode cable, brain electricity cap fixed pedestal, electrode slice outer fixed card buckle, electrode cable fixing buckle；Wherein, it is buckled outside electrode slice and silica gel flexible electrical pole piece is fixed on electrode base, be fixed by outer fixed card buckle fixing nut.Electrode cable is closely pressed with flexible silicon gel electrode piece by the high spot for buckling inner wall outside electrode slice, and is fixed on brain electricity cap fixed pedestal by fixed card buckle fixing nut.The present invention has good contact, and convenient, comfortable to wear, impedance is low between electrode-skin, and electric conductivity is excellent, can collect high quality EEG signals.
Description
Technical field
The invention belongs to electrophysiologicalsignal signal detection technical fields, and in particular to a kind of electrode for encephalograms and preparation method thereof.
Background technology
Brain wave（Electroencephalogram, EEG）Signal is by cerebral cortex or scalp surface neuronal cell
The synthesis for the electrical potential information that body physiological activity generates, includes the abundant rhythm and pace of moving things information [1] of brain, can be widely applied to cerebral disease
Diagnosis, rehabilitation, brain-computer interface（BCI）, the fields such as fatigue detecting.It is considered as detection epileptic attack, psychological non-epilepsy hair
Make, migraine, the main method [2] of the diseases such as encephalopathy, while being also the important evidence of sleeping disorders diagnosis.However EEG signals
Amplitude is generally less than 100 μ V [3], therefore the capture of EEG signals proposes very electrode for encephalograms itself and rear class modulate circuit
High requirement.Wherein, rear class modulate circuit technology has tended to be ripe.In comparison, due to the electrology characteristic of electrode complexity, with
And the particular/special requirement of acquiring biological electric signals, the research of electrode for encephalograms are in the ascendant.
In the prior art, electrode for encephalograms can be divided into wet type electrode and dry-type electrode two major classes.Wet type electrode refers to needing
Coordinate the electrode that conductive paste uses.Conductive paste operation is smeared by the Skin sensitization test of early period and in acquisition position so that
Electrode forms a metal-electrolysis bath interface with human skin surface, and the ultra-high resistance to reduce skin is anti-to obtain high noise
The signal of ratio.Existing wet type electrode is with golden cup electrode（Gold Cup Electrode）[4] and Ag/AgCl electrodes [5] are generation
Table.Golden cup electrode is that electroplating gold metal is prepared on the basis of fine silver electrode, overcomes what fine silver electrode used for a long time
Problem of oxidation.In use, needing to be attached golden cup electrode and skin using conductive paste, waiting comes into full contact with and signal is steady
The acquisition of signal is carried out after fixed.Its normal electrode as EEG signal acquisition, it is conductive can excellent, signal stabilization, letter
The advantages that number signal-to-noise ratio is high.But the coating of conductive paste needs are completed with the help of medical staff using a large amount of time, and
And prolonged acquisition will lead to the discomfort of subject, and allergy redness will be caused to react when serious.In addition, clear after experiment
It washes also very troublesome.For Ag/AgCl electrodes, since its preparation is convenient, cheap, and with electric signal baseline stability,
The electronics feature such as strong antijamming capability, thus be widely used by industry.But because there is dehydration in the Signa Gel in electrode
Dry phenomenon, thus long-time use when its electrical characteristics can change, in high-precision experiment will introduce compared with
Big noise and error.
In order to solve the problems, such as that wet type electrode exists, various researchs, which are devoted to research and development, need not use conductive paste, conduction
The dry-type electrode of gel.Dry-type electrode is very suitable for applying due to not needing Skin sensitization test and smearing the operations such as conductive paste
In fields such as future health monitoring, rehabilitation, disease treatment and brain-computer interface BCI.Microneedle electrodes [6] are current brain wave acquisition skills
The dry electrode most generally used in art.Microneedle electrodes are a kind of electrodes researched and developed using micropin Technology design, pass through fine system
It makes method and manufactures the array microneedle configuration to be formed in material surfaces such as silicon materials, metal, polymer and glass, directly pierce through angle
Matter layer reduces the anti-influence to signal acquisition of its ultra-high resistance.It reliably has smaller impedance using more convenient, smaller
Electrochemical properties, more conducively long-term measure use.But having the disadvantage that will avoid hurting skin corium when use, avoid to nerve
With the injury of blood vessel.At the same time, although other textile electrodes have in wearable ECG, electromyographic signal collection system it is good
Good application, but when applied to brain wave acquisition, the impedance effect of the poor contact and skin that are come due to hair carry makes to connect
Tactile impedance further increases so that the acquisition of EEG signal becomes more difficult.
Traditional wet Electrode Operation is complicated, is difficult to wearable acquisition signal for a long time in order to overcome, and overcomes dry type
The shortcomings of electrode signal is of poor quality, the present invention propose a kind of flexible dry electrode based on silica gel substrate.The electrode and scalp knot
Conjunction is comfortable close, simultaneously because the use of high conductive material so that is obtained under the premise of without using conductive paste, Signa Gel high
The original signal of quality is possibly realized.It is proved by the test of electrode electric property, shows that the electrode has comfortable wearing, operation
The advantages that easy, sensitive precision is high is suitable for the fields such as health supervision, wearable eeg signal acquisition.
Bibliography
[1] Han Feng is talked, the Beijing Zhu Xianfeng medical imaging devices installation and maintenance [M]:People's Health Publisher, 2008:
162-172.
[2] Acharya, D., Rani, A., & Agarwal, S. （2015, September）. EEG data
acquisition circuit system Based on ADS1299EEG FE. In Reliability, Infocom
Technologies and Optimization （ICRITO）（Trends and Future Directions）, 2015
4th International Conference on （pp. 1-5）. IEEE.
[3] Oohashi, T., Kawai, N., Honda, M., Nakamura, S., Morimoto, M.,
Nishina, E., & Maekawa, T. （2002）. Electroencephalographic measurement of
possession trance in the field. Clinical Neurophysiology, 113（3）, 435-445.
[4] Tallgren, P., Vanhatalo, S., Kaila, K., & Voipio, J. （2005）.
Evaluation of commercially available electrodes and gels for recording of
slow EEG potentials. Clinical Neurophysiology, 116（4）, 799-806.
[5] Verma, N., Shoeb, A., Bohorquez, J., Dawson, J., Guttag, J., &
Chandrakasan, A. P. （2010）. A micro-power EEG acquisition SoC with integrated
feature extraction processor for a chronic seizure detection system. IEEE
Journal of Solid-State Circuits, 45（4）, 804-816.
[6] Liu Ran, Wang Xiaohao, million English of week（2004）.MEMS microneedle array and its application biologies in biomedicine are cured
Engineering science magazine, 21（3）,482-485..
Invention content
The purpose of the present invention is to provide a kind of electric conductivity is excellent, strong antijamming capability is easy to use, comfortable wearing,
The low novel flexible contact electrode for encephalograms and preparation method thereof of production cost.
Flexible contact electrode for encephalograms provided by the invention is made of flexible silicon gel electrode piece D and electrode base two parts；Its
Structure is referring to shown in Fig. 2, Fig. 4.Wherein, the flexible silicon gel electrode piece is double-layer structure, and upper layer is flexible layer of silica gel, and lower layer is
Composite conductive layers, functionally, the connection handle that flexible silicon gel electrode piece D is connect by a circular electrode and with circular electrode are constituted；
The electrode base includes：Electrode cable A, fixing nut B, electrode cable fixing buckle C, brain electricity cap fixed pedestal E, outside electrode slice
Fixed card buckle F；Wherein：
The brain electricity cap fixed pedestal E, for disposing flexible silicon gel electrode piece D and electrode cable A；Brain electricity cap fixed pedestal E
Shape is substantially cylindrical, which is provided with recessed for placing flexible silicon gel electrode piece D connection handles and the placement of the front ends electrode cable A
Slot；Positioned at placement groove top, the conducting wire fixed groove equipped with fixed electrode cable A；Brain electricity cap fixed pedestal E lower edges are
The sphere curved surface of evagination；The circular electrode portion of flexible silicon gel electrode piece D is tightly attached to brain electricity cap without conductive material and fixes base on one side
Seat E lower spherical curved surfaces；The one side for being coated with conductive layer of the connection handle other end of flexible silicon gel electrode piece D is with electrode cable A's
End thereof contacts are fixed in the placement groove on electric cap fixed pedestal E；
The fixing nut B is for the outer fixed card buckle F of fixed electrode film；
The electrode cable A for transmitting the collected electric signal of institute on flexible silicon gel electrode piece D, and connects the external circuit board；
A part of electrode cable A, which is led, to be placed in conducting wire fixed groove, is fixed on brain electricity cap fixed pedestal by electrode cable fixing buckle C
On E；
The electrode cable fixing buckle C is used to electrode cable A being fixed on brain electricity cap fixed pedestal E；
The outer fixed card buckle F of the electrode slice, internal is cavity, the cavity shape and brain electricity cap fixed pedestal E form fits, sky
Chamber is suitable for reading to be matched with the lower mouth of fixing nut B, and inside is equipped with protuberance G, and lower edge is through-hole, and the outer fixed card buckle F of electrode slice
Equipped with the matched external screw thread of fixing nut B internal threads；Brain electricity cap fixed pedestal E is located at the cavity of the outer fixed card buckle F of electrode slice
It is interior；The property silica gel electrode that protuberance G on the inside of the outer fixed card buckle F of electrode slice will be disposed in groove on brain electricity cap fixed pedestal E
Piece D connection handles closely press with the front ends electrode cable A, are fixed；The outer fixed card buckle F of electrode slice fixes flexible silicon gel electrode piece D
In the bottoms brain electricity cap fixed pedestal E, also, the spherical of the bottoms brain electricity cap fixed pedestal E is by the circle of flexible silicon gel electrode piece D
A part for electrode is released under the outer fixed card buckle F of electrode slice outside marginal pore, so that electrode slice surface can come into full contact with to the end
Skin.
By electric cap fixed pedestal E and flexible silica gel electricity after the fixing nut B and outer fixed card buckle F of electrode slice is engaged through the thread
Pole piece D and electrode cable A connectors are fixed therein portion.
In the present invention, the groove, size is disposed to be on the brain electricity cap fixed pedestal E：Long 4mm, wide 5mm, deep 1mm.
In the present invention, its width of protuberance G surveyed in the electrode cable fixing buckle C is 5mm, the protuberance vertex distance electrode slice
The inner surface height of outer fixed card buckle F is 0.5mm.
In the present invention, flexible silicon gel electrode piece circular portion diameter is slightly larger than the outer fixed card buckle F bottom surface endoporus of electrode slice
Diameter.The outer fixed card buckle F bottom surface through-hole internal diameter sizes of electrode slice are 12-14mm..
In the present invention, the vertex of the circular electrode portion of flexible silicon gel electrode piece D protrudes under the outer fixed card buckle F of electrode slice
The outer 1.5mm-2mm of marginal pore, to ensure that electrode slice surface is adequately exposed to scalp.
In use, the electrode is close to scalp, electrode is soft, and signal is good, ensure that the attribute of prolonged and repeated wearing.
The preparation method of flexible contact electrode for encephalograms provided by the invention, the specific steps are：
（One）It is prepared by flexible silicon gel electrode piece：
（1）Metal nanometer line dispersant liquid drop is coated in smooth substrates surface, is heated at 60-100 DEG C, it is dry, it forms three-dimensional and leads
Electric network film；Here, metal nanometer line can be nano silver wire, copper nano-wire, nanowires of gold etc., metal nanometer line dispersion liquid
Concentration can be 1-10 wt%；The substrate can be glass, silicon chip, ceramics etc.；
（2）Silica gel solution is poured into step（1）The three-dimensional conductive network thin-film surface being prepared stands 0.5-5h, waits for molten
Liquid completely penetrates in three-dimensional conductive network gap, and 2-12h is heated at 60-100 DEG C, from substrate table after silica gel is fully cured
Face is carefully removed, and flexible silicon gel electrode material is obtained；Here, the silica gel solution can be selected from dimethyl silicone polymer（PDMS）、
Styrene-Butadiene-Styrene Block Copolymer（SBS）Or polyurethane（PU）Deng；
（3）The flexible silicon gel electrode material being prepared is cut into electrode shape：Including circular portion and connection handle；Such as Fig. 3
It is shown；
Usually, electrode slice circular portion diameter a is 12mm-14mm.Connection handle length b is 4mm, and width c is 5mm.Wherein, it leads
Electric layer thickness e is 1-10 μm, and layer of silica gel thickness d is 100-500 μm.
（Two）The assembling of dry flexibility electrode for encephalograms：
（1）By electrode cable（B）It is penetrated from the gap between brain electricity cap fixed pedestal E and fixing nut B；
（2）By electrode cable A leading portions（It is about 4mm）It is partially disposed in the resettlement groove on brain electricity cap fixed pedestal E；Electrode cable
Using FPC；
（3）In on electrode cable fixing buckle C insertion brain electricity cap fixed pedestals E in conducting wire fixed groove, it will be placed on
Electrode cable A in groove is fixed on brain electricity cap fixed pedestal E, and by the front ends electrode cable A（4mm length）It is partially placed into
It disposes in groove；
（4）The connection handle of the flexible silicon gel electrode piece D cut is inserted into the gap between electrode cable A and resettlement groove inner wall
In；
（5）By the bump pad outside electrode slice on fixed card buckle F inner walls（G）It is aligned in placement groove, by fixed card buckle F outside electrode slice
It is sleeved on outside brain electricity cap fixed pedestal E, and ensures that flexible silicon gel electrode piece D is squeezed because of brain electricity cap fixed pedestal lower spherical curved surface
And higher than ground 1.5mm-2mm under the outer fixed card buckle F of electrode slice；
（6）Rotary fixing screw mother B fixes fixed card buckle F outside electrode slice.
The flexible electrode for encephalograms of the present invention has good contact, and convenient wearing mode is comfortable to wear experience, well
Skin surface compactness, and impedance is low between electrode-skin, and electric conductivity is excellent, can collect the brain telecommunications of high quality
Number.In addition, flexible silicon gel electrode piece manufacturing cost is extremely low, use cost can be substantially reduced.Easy to operate, fabrication cycle of the invention
It is short, it is easy to mass produce.
The features of the present invention
The flexible contact electrode for encephalograms has good contact flexible.
The silica gel flexible electrode has good flexibility, can arbitrarily be bent in arbitrary angular range without influencing
Its electric conductivity.
The electrode base designs for detachable structure, which ensure that the simple of silica gel flexible electrical pole piece replacement operation
Property.
The silica gel flexible electrical pole piece is pressed with conducting wire by being fixed on the conductive buckle that electrode slice wild card is buckled, without any
Welding, viscose simultaneously have good electric conductivity.
It is provided with silica gel pedestal on the electrode base and silica gel flexible electrical pole piece contact surface, further ensures user
The flexible contact of scalp and silica gel flexible electrical pole piece.
The adopted model of flexible contact electrode for encephalograms has excellent conductive performance, can collect the brain telecommunications of high quality
Number.
Description of the drawings
Fig. 1 electrode pictorial diagrams.
Fig. 2 novel flexible electrode for encephalograms internal structure schematic diagrams.
Fig. 3 flexible silicon gel electrode chip sizes.
Fig. 4 flexible electrode installation steps schematic diagrames.
The flexible silicon gel electrode sections Fig. 5 and conductive layer surface electromicroscopic photograph.
Fig. 6 flexibilities electrode for encephalograms and Ag/AgCl electrodes, golden cup the electrode impedance contrast between the skin-electrode in the regions Fp1.
Fig. 7 flexibilities electrode for encephalograms and Ag/AgCl electrodes, golden cup the electrode impedance contrast between the skin-electrode in the regions F3.
Fig. 8 flexibilities electrode for encephalograms is compared with Ag/AgCl electrodes, golden cup electrode in the collected EEG signals in the regions Fp1.
Fig. 9 flexibilities electrode for encephalograms and Ag/AgCl electrodes, flexible silica gel motor, golden cup electrode are collected in the regions Fp1
EEG signals frequency domain compares.
Figure 10 flexibilities electrode for encephalograms is compared with golden cup electrode in the collected EEG signals in the regions F3.
Figure 11 flexibilities electrode for encephalograms is compared with golden cup electrode in the collected EEG signals frequency domain in the regions F3.
Figure label：A is electrode cable, and B is buckle fixing nut, and C is fixing buckle, and D is flexible silicon gel electrode piece, and E is
Brain electricity cap fixed pedestal, F are the outer fixed card buckle of electrode slice, and G is medial eminence.
Specific implementation mode
Novel flexible electrode for encephalograms is prepared by abovementioned steps：
（One）The preparation of flexible silicon gel electrode piece：
（1）By the nano silver wire of a concentration of 5 wt% of 2 ml（Ag NWs）Dispersant liquid drop is coated in 5cm × 5cm glass substrate surfaces, and 60
DEG C heat drying 10min obtains three-dimensional nano silver wire conductive network film；
（2）1mlPDMS solution is poured into step（1）The nano silver wire conductive network film surface being prepared stands 1h, so
60 DEG C of 5h that are heating and curing afterwards carefully remove to obtain flexible silicon gel electrode from glass substrate surface after PDMS is fully cured, tool
Body structure is shown in attached drawing 2, and pure PDMS layer of silica gel is as flexible substrate, and thickness is 100 μm, and Ag NWs/PDMS composite layers are as conductive
Layer, thickness are 10 μm.It should be noted that Ag NWs three-dimensional conductives networks are in the surfaces PDMS, rather than only letter
Single is covered in its surface, therefore in the case where meeting electric conductivity, while having good adhesive force, in bending, distortion, very
To that will not fall off in the case of stretching, the application demand of electrode for encephalograms is fully met.
Being installed novel flexible silica gel electrode for encephalograms and being tested by Fig. 4.It is first that FPC electrode cables A is electric from brain
Gap between cap fixed pedestal E and the outer fixed card buckle fixing nut B of electrode slice penetrates；Then by segment length before FPC electrode cables A
About 4mm is partially disposed in the resettlement groove on brain electricity cap fixed pedestal E；And then electrode cable fixed card buckle F is inserted in brain
It is located on electric cap fixed pedestal in the card slot above resettlement groove；Then again by the flexible silicon gel electrode piece D's cut according to Fig. 3
Connection handle is inserted into the gap between FPC electrode cables A and resettlement groove inner wall；In addition, will be outside electrode slice on fixed card buckle F inner walls
Bump pad be aligned in resettlement groove after, fixed card buckle F outside electrode slice is sleeved on outside brain electricity cap fixed pedestal, and ensure flexible silicon
Because brain electricity cap fixed pedestal lower spherical face squeezes, to be higher than fixed card buckle F lower edges outside electrode slice be about 1.5mm to gel electrode；Finally
Fixed card buckle fixing nut B outside electric rotating pole piece is fixed fixed card buckle F outside electrode slice.
Currently, clinically widely used electrode for encephalograms is golden cup electrode or Ag/AgCl electrodes, often electrode with
Skin contact part promotes impedance between laminating degree and electric conductivity, reduction skin-electrode with Signa Gel.However, with
The increase of usage time, Signa Gel tends to hardening, related performance is remarkably decreased.
Flexibility electrode for encephalograms proposed by the present invention does not need Signa Gel, and the mechanical property of material itself can protect for a long time
It holds and is contacted with the good of skin.Electrochemical workstation test result shows, between the skin-electrode of the electrode proposed impedance exist
It is comparable with golden cup electrode and Ag/AgCl electrodes within the scope of 0.1 Hz-100k Hz, and nearly all physiological signal（Such as brain electricity, the heart
Electricity, myoelectricity etc.）Frequency be all distributed in the range of 0.1 Hz to 1k Hz.Its do not need the characteristics of Signa Gel make its
It has a clear superiority compared to Ag/AgCl electrodes in the application scenarios of wearable device, is compared with golden cup electrode, collected matter
Amount is made no distinction of rank, and suitable for long-term monitoring.The electrode and golden cup electrode, Ag/ that this patent is proposed is set forth in Fig. 6 and Fig. 7
Between the skin-electrode of AgCl electrodes impedance within the scope of 0.1 Hz-100k Hz in Fp1（Left antinion, no hair attachment）And F3
（Left volume has hair attachment）The comparison of position.In 0.1Hz to 200KHz frequency ranges, the flexible silicon gel electrode that patent proposes has
Minimum skin electrode interface impedance is about the half of golden cup electrode near direct current frequency range（15K ohms）, hinder simultaneously
Anti- distribution is similar to EEG standard golden cup electrodes.Smaller skin electrode interface impedance makes dummy source internal resistance smaller, to
Weaken the signal distortion problem brought since singal source resistance is larger.Ag/AgCl electrodes have maximum impedance in three kinds of electrodes,
The corresponding acquisition for being difficult to use Ag/AgCl electrodes in practical applications and carrying out EEG signal.
In addition, for electrode, other than electrical performance wants excellent, effective signal can be collected and be only
Final purpose.Therefore lead sleep monitor instrument PSG using medical grade is commercial more（Compumedics Grael）Equipment carries out signal
Acquisition verification.Experiment condition is as follows：In order to ensure that stringent Variable Control, subject require to carry out cleaning guarantee examination before experiment
It tests not by the interference of sweat, oil stain etc., and tests and terminate within a hour, it is assumed that in subject's physical condition this period
It remains unchanged（Big variation will not occur over time for skin contact and impedance state leads to test failure）, sample frequency
For 256Hz.In the regions Fp1 contrast test is carried out using three kinds of electrodes.In the regions F3, due to the interference of hair, Ag/AgCl electrodes
Collected signal quality is poor, therefore the contrast test of novel flexible electrode for encephalograms and golden cup electrode has only been carried out in the regions F3.
This experiment carries out time domain and frequency-domain analysis to the original signal collected, and the feasible of electrode design is proved according to its feature
Property.It is collected in the regions Fp1 with Ag/AgCl electrodes, golden cup electrode that novel flexible electrode for encephalograms is set forth in Fig. 8 and Fig. 9
EEG signals and frequency-domain analysis comparison diagram.Figure 10 and Figure 11 novel flexibles electrode for encephalograms is collected with golden cup electrode in the regions F3
EEG signals and frequency-domain analysis comparison diagram.From the point of view of time domain, the two waveform having the same shows the two signal acquisition
Validity.From the point of view of frequency domain, the spectrum structure that the two acquires signal is completely the same, demonstrates the reasonable of electrode design again
Property.
Claims (9)
1. a kind of flexible contact electrode for encephalograms, which is characterized in that by flexible silicon gel electrode piece（D）With electrode base two parts structure
At；The flexible silicon gel electrode piece is double-layer structure, and upper layer is flexible layer of silica gel, and lower layer is composite conductive layers, functionally, soft
Property silica gel electrode slice（D）The connection handle being connect by a circular electrode and with circular electrode is constituted；The electrode base includes：Electrode
Conducting wire（A）, fixing nut（B）, electrode cable fixing buckle（C）, brain electricity cap fixed pedestal（E）, the outer fixed card buckle of electrode slice（F）；
Wherein：
The brain electricity cap fixed pedestal（E）, for disposing flexible silicon gel electrode piece（D）And electrode cable（A）；Brain electricity cap is fixed
Pedestal（E）Shape is substantially cylindrical, which is provided with for placing flexible silicon gel electrode piece（D）Connection handle and electrode cable（A）Before
The placement groove at end；Positioned at placement groove top, it is equipped with fixed electrode cable（A）Conducting wire fixed groove；Brain electricity cap is fixed
Pedestal（E）Lower edge is the sphere curved surface of evagination；Flexible silicon gel electrode piece（D）Circular electrode portion be close on one side without conductive material
In brain electricity cap fixed pedestal（E）Lower spherical curved surface；Flexible silicon gel electrode piece（D）The connection handle other end be coated with conductive layer
On one side with electrode cable（A）End thereof contacts, be fixed on electric cap fixed pedestal（E）On placement groove in；
The electrode cable（A）, for transmitting flexible silicon gel electrode piece（D）The upper collected electric signal of institute, and connect external electrical
Road plate；Electrode cable（A）A part lead and be placed in conducting wire fixed groove, by electrode cable fixing buckle（C）It is fixed on brain electricity
Cap fixed pedestal（E）On；
The electrode cable fixing buckle（C）For by electrode cable（A）It is fixed on brain electricity cap fixed pedestal（E）On；
The outer fixed card buckle of the electrode slice（F）, internal is cavity, the cavity shape and brain electricity cap fixed pedestal（E）Shape
Match, cavity is suitable for reading and fixing nut（B）Lower mouth matching, inside be equipped with protuberance（G）, lower edge is through-hole, and outside electrode slice
Fixed card buckle（F）It is equipped with and fixing nut（B）The matched external screw thread of internal thread；Brain electricity cap fixed pedestal（E）Outside electrode slice
Fixed card buckle（F）Cavity in；The outer fixed card buckle of electrode slice（F）The protuberance of inside（G）Brain electricity cap fixed pedestal will be located at（E）On
Dispose the property silica gel electrode slice in groove（D）Connection handle and electrode cable（A）Front end closely presses, is fixed；It is fixed outside electrode slice
Buckle（F）By flexible silicon gel electrode piece（D）It is fixed on brain electricity cap fixed pedestal（E）Bottom, also, brain electricity cap fixed pedestal（E）
The spherical of bottom is by flexible silicon gel electrode piece（D）The part of circular electrode release the outer fixed card buckle of electrode slice（F）Lower edge
Outside hole, so that electrode slice surface can be adequately exposed to scalp；
Fixing nut（B）With fixed card buckle outside electrode slice（F）By electric cap fixed pedestal after engaged through the thread（E）And flexible silica gel
Electrode slice（D）And electrode cable（A）Connector is fixed therein portion.
2. flexible contact electrode for encephalograms according to claim 1, which is characterized in that the brain electricity cap fixed pedestal（E）On
Placement groove, size are：Long 4mm, wide 5mm, deep 1mm.
3. flexible contact electrode for encephalograms according to claim 1, which is characterized in that the electrode cable fixing buckle（C）It is interior
The protuberance of survey（G）, width 5mm, the outer fixed card buckle of the protuberance vertex distance electrode slice（F）Inner surface height be 0.5mm.
4. flexible contact electrode for encephalograms according to claim 1, which is characterized in that the flexible silicon gel electrode piece rounded portions
Diameter is divided to be more than the outer fixed card buckle of electrode slice（F）Bottom surface internal orifice dimension；The outer fixed card buckle of electrode slice（F）Bottom surface through-hole internal diameter ruler
Very little is 12-14mm..
5. flexible contact electrode for encephalograms according to claim 1, which is characterized in that the flexible silicon gel electrode piece（D）'s
The vertex of circular electrode portion protrudes from the outer fixed card buckle of electrode slice（F）The outer 1.5mm-2mm of lower marginal pore, to ensure electrode slice surface
It is adequately exposed to scalp.
6. a kind of preparation method of flexible contact electrode for encephalograms as described according to one of claim 1-5, which is characterized in that tool
Body step is：
（One）It is prepared by flexible silicon gel electrode piece：
（1）Metal nanometer line dispersant liquid drop is coated in smooth substrates surface, is heated at 60-100 DEG C, it is dry, it forms three-dimensional and leads
Electric network film；
（2）Silica gel solution is poured into step（1）The three-dimensional conductive network thin-film surface being prepared stands 0.5-5h, waits for molten
Liquid completely penetrates in three-dimensional conductive network gap, and 2-12h is heated at 60-100 DEG C, from substrate table after silica gel is fully cured
Face is removed, and flexible silicon gel electrode material is obtained；
（3）The flexible silicon gel electrode material being prepared is cut into electrode shape：Including circular portion and connection handle；
（Two）The assembling of dry flexibility electrode for encephalograms：
（1）By electrode cable（A）From brain electricity cap fixed pedestal（E）With fixing nut（B）Between gap penetrate；
（2）By electrode cable（A）Fore-end is placed in brain electricity cap fixed pedestal（E）On resettlement groove in；
（3）By electrode cable fixing buckle（C）It is inserted into brain electricity cap fixed pedestal（E）On be located at conducting wire fixed groove in, will put
Set the electrode cable in groove（A）It is fixed on brain electricity cap fixed pedestal（E）On, and by electrode cable（A）Fore-end is put
Enter to dispose in groove；
（4）The flexible silicon gel electrode piece that will be cut（D）Connection handle be inserted into electrode cable（A）With the sky between resettlement groove inner wall
In gap；
（5）By fixed card buckle outside electrode slice（F）Bump pad on inner wall（G）It is aligned in placement groove, by fixing card outside electrode slice
Button（F）It is sleeved on brain electricity cap fixed pedestal（E）Outside, and ensure flexible silicon gel electrode piece（D）Because of brain electricity cap fixed pedestal lower ball
Shape curved surface squeezes and is higher than the outer fixed card buckle of electrode slice（F）Lower ground 1.5mm-2mm；
（6）Rotary fixing screw is female（B）, by fixed card buckle outside electrode slice（F）It is fixed.
7. preparation method according to claim 6, which is characterized in that step（1）In, the metal nanometer line is received for silver
Rice noodles, copper nano-wire or nanowires of gold, a concentration of 1-10 wt% of metal nanometer line dispersion liquid.
8. preparation method according to claim 6, which is characterized in that step（2）In, the silica gel solution is selected from poly- two
Methylsiloxane, Styrene-Butadiene-Styrene Block Copolymer or polyurethane.
9. preparation method according to claim 6, which is characterized in that step（3）In, electrode slice circular portion diameter a is
12mm-14mm；Connection handle length b is 4mm, and width c is 5mm；Wherein, conductive layer thickness e is 1-10 μm, and layer of silica gel thickness d is
100-500 μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198860.9A CN108309291B (en) | 2018-03-12 | 2018-03-12 | Flexible contact brain electrode and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198860.9A CN108309291B (en) | 2018-03-12 | 2018-03-12 | Flexible contact brain electrode and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108309291A true CN108309291A (en) | 2018-07-24 |
| CN108309291B CN108309291B (en) | 2023-11-24 |
Family
ID=62901469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810198860.9A Active CN108309291B (en) | 2018-03-12 | 2018-03-12 | Flexible contact brain electrode and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108309291B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009100A (en) * | 2018-07-26 | 2018-12-18 | 北京机械设备研究所 | A kind of headgear assembly with forehead EEG Signals collecting function |
| CN109171715A (en) * | 2018-09-20 | 2019-01-11 | 清华大学 | Use the wearable device of flexible extending electrode acquisition EEG signals |
| CN110236517A (en) * | 2019-04-02 | 2019-09-17 | 复旦大学 | The perception of cardiopulmonary signal and acquisition system for sleep monitor |
| WO2023087397A1 (en) * | 2021-11-22 | 2023-05-25 | 深圳先进技术研究院 | Test system for internal resistance of capacitive biological electrode, and test method therefor |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2063607A1 (en) * | 1989-08-17 | 1991-02-18 | Patricia A. Broderick | Microelectrodes and their use in cathodic electrochemical current arrangement with telemetric application |
| US20050177039A1 (en) * | 2003-11-03 | 2005-08-11 | Mills William J. | Chronically implantable an artifact-free biomedical electrode assemblies |
| CN2902190Y (en) * | 2006-03-24 | 2007-05-23 | 北京毫纳心脑测试诊断技术研究所 | Electrode cap cover, electrode small base and relative brain electrode cap |
| WO2008109694A1 (en) * | 2007-03-06 | 2008-09-12 | Emotiv Systems Pty Ltd | Electrode and electrode headset |
| US20090105576A1 (en) * | 2007-10-22 | 2009-04-23 | Nam Hoai Do | Electrode conductive element |
| CN201481412U (en) * | 2009-07-31 | 2010-05-26 | 於德滋 | Electroencephalogram detecting instrument |
| CN102499667A (en) * | 2011-10-20 | 2012-06-20 | 中国科学院半导体研究所 | Flexible skin surface dry electrode and preparation method thereof |
| CN102579041A (en) * | 2012-02-09 | 2012-07-18 | 上海交通大学 | Arrayed flexible electroencephalogram dry electrode capable of overcoming obstacle of hair and preparation method thereof |
| WO2012140629A1 (en) * | 2011-04-15 | 2012-10-18 | Universidade Do Porto | Polymer-based electrode for bio-signal recording |
| CN203619553U (en) * | 2013-12-17 | 2014-06-04 | 李伟 | Retaining cap used for electroencephalogram detection |
| CN104224166A (en) * | 2013-06-07 | 2014-12-24 | 上海帝仪科技有限公司 | Wet electrode based on conductive liquid |
| CN104688223A (en) * | 2014-06-28 | 2015-06-10 | 苏州格林泰克科技有限公司 | Bioelectrical signal sensor and acquisition device |
| WO2015180464A1 (en) * | 2014-05-26 | 2015-12-03 | 北京大学深圳研究生院 | Disposable skin surface dry electrode and manufacturing method therefor |
| CN105514666A (en) * | 2013-06-24 | 2016-04-20 | 上海帝仪科技有限公司 | Electrode mounting seat device |
| EP3219255A1 (en) * | 2016-03-14 | 2017-09-20 | The Nielsen Company (US), LLC. | Headsets and electrodes for gathering electroencephalographic data |
| CN107184206A (en) * | 2016-03-14 | 2017-09-22 | 尼尔森（美国）有限公司 | Helmet and electrode for collecting EEG data |
| CN107374622A (en) * | 2017-06-16 | 2017-11-24 | 华南理工大学 | A kind of flexible dry-type electrode for gathering EEG signals and preparation method thereof |
| CN208910252U (en) * | 2018-03-12 | 2019-05-31 | 复旦大学 | A kind of flexible contact electrode for encephalograms |
-
2018
- 2018-03-12 CN CN201810198860.9A patent/CN108309291B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2063607A1 (en) * | 1989-08-17 | 1991-02-18 | Patricia A. Broderick | Microelectrodes and their use in cathodic electrochemical current arrangement with telemetric application |
| US20050177039A1 (en) * | 2003-11-03 | 2005-08-11 | Mills William J. | Chronically implantable an artifact-free biomedical electrode assemblies |
| CN2902190Y (en) * | 2006-03-24 | 2007-05-23 | 北京毫纳心脑测试诊断技术研究所 | Electrode cap cover, electrode small base and relative brain electrode cap |
| WO2008109694A1 (en) * | 2007-03-06 | 2008-09-12 | Emotiv Systems Pty Ltd | Electrode and electrode headset |
| US20090105576A1 (en) * | 2007-10-22 | 2009-04-23 | Nam Hoai Do | Electrode conductive element |
| CN201481412U (en) * | 2009-07-31 | 2010-05-26 | 於德滋 | Electroencephalogram detecting instrument |
| WO2012140629A1 (en) * | 2011-04-15 | 2012-10-18 | Universidade Do Porto | Polymer-based electrode for bio-signal recording |
| CN102499667A (en) * | 2011-10-20 | 2012-06-20 | 中国科学院半导体研究所 | Flexible skin surface dry electrode and preparation method thereof |
| CN102579041A (en) * | 2012-02-09 | 2012-07-18 | 上海交通大学 | Arrayed flexible electroencephalogram dry electrode capable of overcoming obstacle of hair and preparation method thereof |
| CN104224166A (en) * | 2013-06-07 | 2014-12-24 | 上海帝仪科技有限公司 | Wet electrode based on conductive liquid |
| CN105514666A (en) * | 2013-06-24 | 2016-04-20 | 上海帝仪科技有限公司 | Electrode mounting seat device |
| CN203619553U (en) * | 2013-12-17 | 2014-06-04 | 李伟 | Retaining cap used for electroencephalogram detection |
| WO2015180464A1 (en) * | 2014-05-26 | 2015-12-03 | 北京大学深圳研究生院 | Disposable skin surface dry electrode and manufacturing method therefor |
| CN104688223A (en) * | 2014-06-28 | 2015-06-10 | 苏州格林泰克科技有限公司 | Bioelectrical signal sensor and acquisition device |
| EP3219255A1 (en) * | 2016-03-14 | 2017-09-20 | The Nielsen Company (US), LLC. | Headsets and electrodes for gathering electroencephalographic data |
| CN107184206A (en) * | 2016-03-14 | 2017-09-22 | 尼尔森（美国）有限公司 | Helmet and electrode for collecting EEG data |
| CN107374622A (en) * | 2017-06-16 | 2017-11-24 | 华南理工大学 | A kind of flexible dry-type electrode for gathering EEG signals and preparation method thereof |
| CN208910252U (en) * | 2018-03-12 | 2019-05-31 | 复旦大学 | A kind of flexible contact electrode for encephalograms |
Non-Patent Citations (3)
| Title |
|---|
| 梅红伟;陈金君;彭功茂;王黎明;关志成;: "复合绝缘子高压端输电导线安装绝缘护套的研究", 中国电机工程学报, no. 01 * |
| 白秀军;屠迪;张红;: "脑电神经信号采集与提取研究的背景与现状", 中国老年保健医学, no. 05 * |
| 郑赛晶;顾文博;张建平;刘百战;张祥民;: "电偶法测量卷烟内部动态温度", 烟草科技, no. 01 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009100A (en) * | 2018-07-26 | 2018-12-18 | 北京机械设备研究所 | A kind of headgear assembly with forehead EEG Signals collecting function |
| CN109171715A (en) * | 2018-09-20 | 2019-01-11 | 清华大学 | Use the wearable device of flexible extending electrode acquisition EEG signals |
| CN109171715B (en) * | 2018-09-20 | 2019-11-22 | 清华大学 | Use the wearable device of flexible extending electrode acquisition EEG signals |
| CN110236517A (en) * | 2019-04-02 | 2019-09-17 | 复旦大学 | The perception of cardiopulmonary signal and acquisition system for sleep monitor |
| WO2023087397A1 (en) * | 2021-11-22 | 2023-05-25 | 深圳先进技术研究院 | Test system for internal resistance of capacitive biological electrode, and test method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108309291B (en) | 2023-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108652620B (en) | Flexible semi-dry type multi-layer structure electrode for collecting brain electrical signals | |
| Niu et al. | Surface bioelectric dry Electrodes: A review | |
| Lee et al. | Self-adhesive epidermal carbon nanotube electronics for tether-free long-term continuous recording of biosignals | |
| CN108309291A (en) | A kind of flexible contact electrode for encephalograms and preparation method thereof | |
| Chen et al. | Novel flexible material-based unobtrusive and wearable body sensor networks for vital sign monitoring | |
| Baek et al. | Conductive polymer foam surface improves the performance of a capacitive EEG electrode | |
| CN107374622B (en) | Flexible dry electrode for collecting electroencephalogram signals and preparation method thereof | |
| CN105748065B (en) | A kind of moisturizing micropin matrix array surface biological electricity electrode | |
| Hsieh et al. | Design of hydrogel-based wearable EEG electrodes for medical applications | |
| CN107411735A (en) | A kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof | |
| Tyagi et al. | A review of EEG sensors used for data acquisition | |
| CN104287727A (en) | Elastic and dry type soft electrode | |
| Yuan et al. | State of the art of non-invasive electrode materials for brain–computer interface | |
| WO2020056925A1 (en) | Skin dry electrode | |
| KR101308540B1 (en) | EEG and bioelectrical signal measuring apparatus using capacitive electrode comprising polymer foam and system using thereof | |
| CN107714036A (en) | A kind of headband structure with eeg signal acquisition system | |
| CN105232035A (en) | Bioelectric signal sensor | |
| CN208910252U (en) | A kind of flexible contact electrode for encephalograms | |
| CN113940678A (en) | Flexible brain electricity cap of convenient comfortable integral type of dressing | |
| Wang et al. | Robust tattoo electrode prepared by paper-assisted water transfer printing for wearable health monitoring | |
| CN111134641A (en) | Sleep monitoring chip system and sleep monitoring chip | |
| CN201067402Y (en) | Medical skin electrode device | |
| CN112967832B (en) | Flexible comb-shaped semi-dry electrode and preparation method thereof | |
| Petrossian et al. | Advances in electrode materials for scalp, forehead, and ear EEG: a mini-review | |
| CN2882531Y (en) | Intracranial skin electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |