CN106419913A - Half-dry electrode, system and method for bioelectrical signal sensing - Google Patents
Half-dry electrode, system and method for bioelectrical signal sensing Download PDFInfo
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- CN106419913A CN106419913A CN201610774515.6A CN201610774515A CN106419913A CN 106419913 A CN106419913 A CN 106419913A CN 201610774515 A CN201610774515 A CN 201610774515A CN 106419913 A CN106419913 A CN 106419913A
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- electrode
- bioelectrical signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6835—Supports or holders, e.g., articulated arms
Abstract
The invention discloses a half-dry electrode for bioelectrical signal sensing. The half-dry electrode comprises a supporting base, at least one supporting leg attached to the supporting base and extending from the supporting base, an ion slow release body and sensing elements arranged at the tail end of the supporting leg. The ion slow release body contains conductive liquid and slowly releases the conductive liquid to present the half-dry surface to a subject; at least part of the ion slow release body or the conductive liquid released by the ion slow release body is in contact with the sensing elements, and thus bioelectrical signals are transmitted to the sensing elements from the subject through the ion slow release body. The half-dry electrode is reasonable in structure, convenient and comfortable to use and good in contact with the skin, electrode-skin impedance is relatively low and stable, and signal quality is good.
Description
Technical field
The invention belongs to biological electro-technical field, and in particular to a kind of half-dried electrode for bioelectrical signals sensing, with
And its system and method, be widely used in biological electrographic recording, measurement and stimulate, including armarium, mobile device, family health care,
Psychological cognition, game, brain-computer interface, rehabilitation training etc., are particularly well-suited to EEG measuring.
Background technology
At present, bioelectrical signals such as electrocardio is recorded（EGG）, brain electricity（EEG）Or myoelectricity（EMG）Wet electrode is routinely needed.
Wet electrode refers to the electrode technology for needing to reduce electrode-skin impedance using more electrolyte.The electrolyte that wet electrode is used can
It is divided into two classes：Conductor fluid（As conducting resinl, conductive saline）With conductive paste or viscogel.Conductor fluid does not have caking property,
The general supporter of wet electrode such as electrode cap, band etc. are fixing；And conductive paste and viscogel all contain binding agent, directly can consolidate
Fixed electrode, conductive paste is generally used for circular electrode, and viscogel is then used for disposable electrode.
Wet electrode is current clinical and research application " goldstandard ", as its impedance is low and stable, typically 5 k Ω with
Interior, signal quality height, but still suffer from the drawback that：（1）Wet electrode needs to coat conducting resinl（Cream）With skin pretreatment, prepare fiber crops
Tired time-consuming, especially high-density electrode measurement；（2）Electrolyte such as conducting resinl easily becomes dry, and needs regular replenishment conducting resinl；（3）Lead
Electric cream or viscogel are possible to be occurred coming off, and causes measurement to interrupt；（4）Electrolyte consumption is big, and the hair of the experimenter that makes dirty makes
With uncomfortable, hair washing is needed after measurement to remove electrolyte；Therefore, the above-mentioned inconvenience of wet electrode, seriously limits open air
Brain electricity application with individuation environment.With the development of big data, portable medical and health monitoring, wearable device and movement are cured
Treatment equipment needs development signal reliability, the electrode using close friend badly.
For overcoming the above-mentioned limitation of wet electrode, be developed recently and the dry electrode of additional electrolyte do not needed as replacing
Generation.This kind of dry electrode is without using additional electrolyte, and electric conductor is worked by directly being contacted with dry skin.It is noted that dry electricity
Pole nisi " doing ", still have a micro electrolyte between electrode and skin, such as the antiperspirant on the dampness of surrounding or skin
Liquid.Compared with wet electrode, dry electrode need not apply electrolyte or " wet " medium is exposed on skin.Even if in skin and
Electrode surface is more dry（Such as no perspiration）In the case of, dry electrode can also be operated and can be used for multiple times, because having no fluid
Use up.Finally, subject perception is to " doing ", because which introduces extra water on person under inspection's skin.Therefore, dry electrode exists
Comfort level and have many advantages in terms of the life-span so that they are particularly well-suited to monitored for prolonged periods of time application.But it is additional due to lacking
Electrolyte, electrode-skin impedance is high and unstable, poor signal quality, this be the invention solves the problems that subject matter.With wet electrode
Compare, dry electrode tends to include high drift, signal stabilization time length and to motion sensitive with multi-signal quality problems.Cause
This, be not yet widely accepted for medical treatment and scientific research purposes.Additionally, current dry electrode also has many availability issues.
Although the signal acquisition of baring skin such as forehead is relatively direct, most of EEG records need to enter in the scalp for having hair to cover
OK.Electrode is generally difficult to penetrate hair and keeps good contact, and especially hair is dense.Under minimum help or adjustment, if
Meter can pass rapidly through the dry electrode system of hair and still have very big challenge.Existing dry electrode technology is generally configured to push away
Open the finger piece of the straight, hard through hair to scalp.Although finger electrodes effectively can be arrived through many difference hair styles
Scalp is reached, but is still had the disadvantages that：If the diameter of finger piece is sufficiently small, easily can penetrate between hair, that
As the high stress concentrations at cusp contact scalp may cause pain；And larger-diameter finger piece, although Bu Huiyin
Pain is played, but generally can not be penetrated between hair without manually adjusting.
Content of the invention
An object of the present invention is according to the deficiencies in the prior art, designs a kind of for the half of bioelectrical signals sensing
Dry electrode, which is rational in infrastructure, easy to use, comfortable, and electrode is contacted with skin well, and electrode-skin impedance is relatively low and stable,
Signal quality is good.
The technical solution adopted for the present invention to solve the technical problems is：A kind of half-dried electricity for bioelectrical signals sensing
Pole, including support base, is attached to support base at least one supporting leg from support base extension, ion sustained release
And it is arranged in the sensing element of supporting leg tail end；Described ion sustained release contains conducting liquid, and slowly discharges conductive liquid
Body is to assume semi-dry surface to experimenter；The conducting liquid of described ion sustained release or its release is at least partly and sensing element
Contact, is delivered to described sensing element from experimenter by ion sustained release so as to bioelectrical signals.
A kind of described half-dried electrode for bioelectrical signals sensing, its supporting leg is claw supporting leg, or/and column
Supporting leg, or/and circumferential support lower limb.
A kind of described half-dried electrode for bioelectrical signals sensing, its claw supporting leg or circumferential support lower limb are hung down with non-
Directly stretch out in the direction of support base, its tail end becomes non-perpendicular angle with skin to be measured.
A kind of described half-dried electrode for bioelectrical signals sensing, its at least one claw supporting leg or circumferential support
Bend when lower limb is contacted with subjects skin under stress.
A kind of described half-dried electrode for bioelectrical signals sensing, its columnar stays lower limb is length-adjustable scalable
Formula structure.
A kind of described half-dried electrode for bioelectrical signals sensing, its columnar stays lower limb has a mushroom shaped
Tail end.
A kind of described half-dried electrode for bioelectrical signals sensing, its support base is provided with and is electrically connected with sensing element
The high input high impedance buffer amplifier for connecing.
A kind of described half-dried electrode for bioelectrical signals sensing, its ion sustained release is granule filler, or solid
Determine the entirety of molding.
A kind of described half-dried electrode for bioelectrical signals sensing, its granule filler is to inhale conducting liquid containing high
Polymer.
A kind of described half-dried electrode for bioelectrical signals sensing, what which was fixed-type can generally absorb conductive molten
The porous ceramicss of liquid, or/and non-sticky hydrogel, or/and fabric, or/and foam.
A kind of described half-dried electrode for bioelectrical signals sensing, its granule filler is filled at least one support
In the cavity of the skin contact jaw of lower limb, its contact surface is provided with hour-glass in shape micropore；Or it is filled at least one supporting leg
Skin contact jaw, semipermeable membrane or ion permeable membrane are pasted/be enclosed with to its contact surface.
A kind of described half-dried electrode for bioelectrical signals sensing, its fixed-type entirety is embedded at least one
The skin contact jaw of support leg；Or it is positioned over the surface of sensing element.
A kind of described half-dried electrode for bioelectrical signals sensing, its fixed-type entirety has taper, hemisphere
The skin contact jaw of shape or mushroom shaped.
A kind of described half-dried electrode for bioelectrical signals sensing, its sensing element is coated by flexible conducting material
Ag/AgCl makes, and described conductive material is conductive plasticss, electric silica gel, and one or more of conductive rubber are composited；Institute
The conducting liquid that states is the solution for including water, or/and chloride ion.
The second object of the present invention is according to the deficiencies in the prior art, designs and a kind of using above-mentioned half-dried electrode is
System.
The third object of the present invention is, according to the deficiencies in the prior art, to design a kind of side for bioelectrical signals sensing
Method, step is to become to connect above-mentioned half-dried positioning of electrode with the skin of experimenter.
The invention has the beneficial effects as follows：
1, the half-dried electrode that the present invention is provided, the conducting liquid that ion sustained release slowly discharges, moistening skin to be measured, be conducive to shape
Become stable electrode double layer interface and electrode-skin interface, with respect to existing dry electrode, electrode-skin impedance is low and steady
Fixed, signal quality is greatly improved；While avoiding using more electrolyte such as conducting resinl, viscogel etc., using comfortable, it is to avoid
Make dirty hair, without the need for hair washing after measurement.Additionally, supporting leg is conducive to penetrating hair, it is ensured that electrode and scalp good contact.
2, the half-dried electrode that the present invention is provided, supporting leg adopts claw or the circumferential support lower limb non-perpendicular to skin surface,
Hair can be fast and effeciently passed through, and well comfortable contact is kept with scalp.Supporting leg can also adopt telescopic columnar stays
Lower limb, its tail end is mushroom-shaped, can not only to be suitable for different head dummys, also reduce pain, improve comfort level.Ion sustained release is
The wholeness method of solid forming absorbs conducting liquid equivalent to " reservoir " of an electrolyte, decapacitation, outside slow release conducting liquid,
Pain can also be relaxed, improves comfort level.
Description of the drawings
Fig. 1 is the structural representation of the half-dried electrode first embodiment of the present invention；
Fig. 2 is the upward view of the half-dried electrode second embodiment of the present invention；
Fig. 3 is the structural representation of the first claw supporting leg of the half-dried electrode first embodiment of the present invention；
Fig. 4 is the structural representation of second claw supporting leg of the half-dried electrode first embodiment of the present invention；
Fig. 5 is the structural representation of the half-dried electrode 3rd embodiment of the present invention；
Fig. 6 is the structural representation of the circumferential support lower limb of the half-dried electrode 3rd embodiment of the present invention；
Fig. 7 is the structural representation of the half-dried electrode fourth embodiment of the present invention；
Fig. 8 is the structural representation of the first columnar stays lower limb of the half-dried electrode fourth embodiment of the present invention；
Fig. 9 is the structural representation of second columnar stays lower limb of half-dried four embodiment of electrode of the present invention.
Each reference is：1 support base, 2 supporting legs, 2a claw supporting leg, 2b columnar stays lower limb, 2c
Circumferential support lower limb, 2.1 is raised, 2.2 charging holes, 2.3 micropores, 3 ion sustained releases, 3a granule filler, 3b
The entirety of solid forming, 4 sensing elements, 5 connectors.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Embodiment 1
Embodiment 1 is a basic embodiment of the present invention.
As shown in Fig. 1,2,5,7, a kind of half-dried electrode for bioelectrical signals sensing, including support base 1, at least one
Individual supporting leg 2 and ion sustained release 3；Described supporting leg 2 is attached to support base 1 and extends from the support base 1, its
Support the rear-end sensing element 4 of arrangement；Described ion sustained release 3 contains conducting liquid, and slowly release conducting liquid with
For assuming semi-dry surface to experimenter；Described ion sustained release 3 or its release conducting liquid at least partly with described
Sensing element 4 is contacted, and described bioelectrical signals are delivered to described sensing element from described experimenter by ion sustained release 3
On part 4.
Its advantage is：The conducting liquid that ion sustained release 3 slowly discharges, moistening skin to be measured, advantageously formed stablizes
Electrode double layer interface and electrode-skin interface, with respect to dry electrode, electrode-skin impedance is low and stable, and signal quality is big
Width improves；While avoiding using such as conducting resinl, the viscosity condensation etc. of more electrolyte, using comfortable, it is to avoid hair of making dirty, measurement
Afterwards without the need for hair washing.Half-dried electrode has support leg structure, simple structure, and is conducive to penetrating hair, it is ensured that electrode is good with scalp
Good contact.
Embodiment 2
Embodiment 2 is further on the basis of embodiment 1 improvement.
As shown in figure 1, described supporting leg 2 is quickly claw supporting leg 2a, can effectively to pass through hair.Described claw is propped up
Support leg 2a is stretched out from the support base 1 with the direction non-perpendicular to support base 1, and its tail end becomes non-with skin to be measured and hangs down
Straight angle.
The commonly provided power perpendicular to skin direction to be measured of the electrode supporting of prior art such as electrode cap, band etc., this
Bright claw supporting leg 2a tail end is oriented relative to the non-perpendicular direction of skin to be measured, therefore under the above-mentioned force will be to
Horizontal direction deflects so that claw supporting leg 2a is slided on skin to be measured, so as to form good contact with skin.Institute
When the claw supporting leg 2a for stating is contacted with subjects skin under stress, claw supporting leg 2a described at least one is suitable to bending,
So that claw supporting leg 2a better contacts with scalp.
Embodiment 3
Embodiment 3 is further on the basis of embodiment 1 improvement.
Unlike unique from embodiment 2, as shown in figure 5, described supporting leg 2 is circumferential support lower limb 2c.
Benefit is：Preferably flexure operation can be limited to the radial direction with respect to support base 1, outwardly direction, in addition
Sensing element 4 can be made the part of ring, this enables sensing element 4 to bend in pressure condition and provide preferable comfortableness
And larger skin contact product.
Embodiment 4
Embodiment 4 is further on the basis of embodiment 1 improvement.
As shown in fig. 7, described support base 1 is circle, described supporting leg 2 is columnar stays lower limb 2b, and quantity is 6
Individual.It should be noted that the shape of support base 1 is not limited to circle, can flexible design as needed.The quantity of columnar stays lower limb 2b and
Size is being quickly effectively advisable through hair.This columnar stays lower limb 2b simple structure, can fast and effeciently penetrate hair.Institute
The columnar stays lower limb 2b for stating is scalable, and length can be adjusted.As scalp is an irregular curved surface, in supporter such as electrode cap
Pressure under, telescopic columnar stays lower limb 2b can guarantee that all of columnar stays lower limb 2b can contact scalp well.Described
Columnar stays lower limb 2b tail end be mushroom-shaped, it is to avoid or mitigate pain, improve the comfort level that uses.
Embodiment 5
Embodiment 5 is further on the basis of embodiment 14 improvement.
Described supporting leg 2 is claw supporting leg 2a, both and the above group of columnar stays lower limb 2b, annular brace lower limb 2c
Close.As shown in Fig. 2 described supporting leg 2 includes the claw supporting leg 2a of periphery and middle columnar stays lower limb 2b.
Embodiment 6
Embodiment 6 is further on the basis of embodiment 1 improvement.
Described support base 1 is provided with high input high impedance buffer amplifier, and which is electrically connected with sensing element 4, favorably
In the quality for improving signal, environmental noise interference and Hz noise can be effectively prevented from.
Embodiment 7
Embodiment 7 is further on the basis of embodiment 1 improvement.
Described ion sustained release 3 is granule filler 3a.Described granule filler 3a contains high suction conducting liquid
Polymer.The described high polymer for inhaling conducting liquid is polyacrylic, preferably sodium polyacrylate.Using being front soaked in conduction
In liquid, imbibition.
Embodiment 8
Embodiment 8 is further on the basis of embodiment 1 improvement.
Described ion sustained release 3 is the overall 3b of solid forming, it is to avoid the leakage of particulate matter.Described solid forming
Overall 3b can absorb conducting solution, can be porous ceramicss, can be non-cohesive hydrogel, can be fabric, can steep
Cotton（Sponge）, can also be both the above and above combination.Porous ceramicss can utilize capillary force automatic absorption conductive liquid
Body.Compared with the viscogel of wet electrode, will not be remained on hair using rear gel, be not easy to during power taking pole damage because pullling
Evil hair.The overall 3b of these solid formings is treated equivalent to " reservoir " of an electrolyte, the repeated multiple times absorption conducting liquid of energy
When which is contacted with skin, conducting liquid can be slowly discharged, additionally, the overall 3b of these solid formings is equivalent to electrode and skin
Between a buffer, can relax pain, improve comfort level.
Embodiment 9
Embodiment 9 is further on the basis of embodiment 7 improvement.
As shown in Fig. 3,6,8, described granule filler 3a is filled in the skin contact jaw of supporting leg 2 described at least one
Cavity in, its contact surface is provided with micropore 2.3, hour-glass in shape.Leaking for particulate matter so both can be avoided as far as possible, and can protect
Card conducting liquid is discharged into skin surface to be measured by micropore 2.3.For claw supporting leg 2a or columnar stays lower limb 2b, cavity sets
It is placed in the tail end of supporting leg 2；For circumferential support lower limb 2c, cavity is arranged at the middle part of ring.
Embodiment 10
Embodiment 10 is further on the basis of embodiment 9 improvement.
Described granule filler 3a is filled in the skin contact jaw of supporting leg 2 described at least one, and its surface mount has
Semipermeable membrane or ion permeable membrane, or be enclosed with semipermeable membrane or ion permeable membrane, it is entirely avoided the leaking of particulate matter, while ensure
Conducting liquid is discharged into skin surface to be measured by film.
Embodiment 11
Embodiment 11 is further on the basis of embodiment 8 improvement.
As shown in Fig. 4,9, the overall 3b of described solid forming is embedded in the skin contact of supporting leg 2 described at least one
End.Similarly, for claw supporting leg 2a or columnar stays lower limb 2b, the tail end of supporting leg 2 is embedded in.For circumferential support lower limb
2c, is embedded in the middle part of ring.In addition to slow release conducting liquid, between supporting leg 2 and skin, cushioning effect is also played, improve comfortable
Degree.When described fixed-type overall 3b is positioned over the surface of sensing element, then belong to further embodiment.As at each
The cotton pad for having conducting liquid, or above-mentioned cotton pad on pad skin to be measured, all supporting legs are inhaled in support leg sensing element surface cushion
Rear end surface be provided with sensing element, which is contacted with the cotton pad.
Embodiment 12
Embodiment 12 is further on the basis of embodiment 11 improvement.
As shown in figure 9, the overall 3b of described solid forming is taper with the contact jaw of skin, or sphere, or mushroom-shaped,
This is conducive to improving comfortableness, reduces the damage of skin.The supporter of this male-tapered is conducive to concentrating on the pressure energy of applying
The tip of taper, promotes the release of inner conductive liquid.
Embodiment 13
Embodiment 13 is further on the basis of embodiment 1 improvement.
Described sensing element 4 is made up of flexible conducting material coating Ag/AgCl, can also be pressed powder Ag/AgCl
Electrode；These sensing elements flexible arrangement in the tail end of supporting leg, can such as may be provided at the surface of supporting leg afterbody as needed,
Or place the cavity inner surface of sustained release.Described conductive material is conductive plasticss, electric silica gel, one kind of conductive rubber or several
Plant and be composited.Described conducting liquid composition includes water, or/and the solution of chloride ion-containing.The conducting solution of chloride ion-containing is excellent
Select NaCl or KCl solution.
Embodiment 14
Embodiment 14 is further on the basis of embodiment 1 improvement.
As shown in figure 1, described support base 1 is provided with connector 5, which both can be with supporter such as cap body, the helmet, band
Etc. detachably connected, can electrically connect with external circuit again.
As shown in figure 1, described claw supporting leg 2a is additionally provided with raised 2.1, for strengthening the contact with skin.
As shown in figure 3, on described supporting leg 2, charging hole 2.2 can also be set, for adding supplementary particulate matter or conduction
Liquid.
Embodiment 15
Embodiment 15 is a kind of basic embodiment of the system for bioelectrical signals sensing of the present invention.
A kind of system for bioelectrical signals sensing, including described half-dried electrode.
As shown in Fig. 1,2,5,7, described half-dried electrode includes that support base 1, at least one supporting leg 2 and ion delay
Release body 3；Described supporting leg 2 is attached to support base 1 and extends from the support base 1, and which supports the rear-end biography of arrangement
Sensing unit 4；Described ion sustained release 3 contains conducting liquid, and slowly discharges conducting liquid for assuming half to experimenter
Dry surface；The conducting liquid of described ion sustained release 3 or its release is at least partly contacted with described sensing element 4, described
Bioelectrical signals be delivered to by ion sustained release 3 described sensing element 4 from described experimenter.
Embodiment 16
Embodiment 16 is a kind of basic embodiment of method for bioelectrical signals sensing of the present invention.
A kind of method for bioelectrical signals sensing, including becoming and described experimenter described half-dried positioning of electrode
Skin connection.As shown in Fig. 1,2,5,7, described half-dried electrode, including support base 1, at least one supporting leg 2 and from
Sub- sustained release 3；Described supporting leg 2 is attached to support base 1 and extends from the support base 1, and its support is arranged in tail end
Sensing element 4；Described ion sustained release 3 contains conducting liquid, and slowly discharges conducting liquid for experimenter being in
Existing semi-dry surface；The conducting liquid of described ion sustained release 3 or its release is at least partly contacted with described sensing element 4,
Described bioelectrical signals are delivered to by ion sustained release 3 described sensing element 4 from described experimenter.
Above-described embodiment only principle of the illustrative present invention and its effect, and the embodiment that part uses, for
For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make some deformation and
Improve, these belong to protection scope of the present invention.
Claims (16)
1. a kind of half-dried electrode for bioelectrical signals sensing, it is characterised in that：Including support base（1）, be attached to support
Base（1）And from the support base（1）At least one supporting leg for extending（2）, ion sustained release（3）And it is arranged in support
Lower limb（2）The sensing element of tail end（4）；
Described ion sustained release（3）Containing conducting liquid, and conducting liquid is slowly discharged to assume semi-dry surface to experimenter；
Described ion sustained release（3）Or the conducting liquid of its release is at least partly and sensing element（4）Contact, so as to bio electricity
Signal passes through ion sustained release（3）Described sensing element is delivered to from experimenter（4）On.
2. a kind of half-dried electrode for bioelectrical signals sensing according to claim 1, it is characterised in that described
Support leg（2）For claw supporting leg（2a）, or/and columnar stays lower limb（2b）, or/and circumferential support lower limb（2c）.
3. a kind of half-dried electrode for bioelectrical signals sensing according to claim 2, it is characterised in that described pawl
Formula supporting leg（2a）Or circumferential support lower limb（2c）With non-perpendicular to support base（1）Direction stretch out, its tail end with to be measured
Skin becomes non-perpendicular angle.
4. a kind of half-dried electrode for bioelectrical signals sensing according to claim 2, it is characterised in that described extremely
A few claw supporting leg（2a）Or circumferential support lower limb（2c）Bend when contacting with subjects skin under stress.
5. a kind of half-dried electrode for bioelectrical signals sensing according to claim 2, it is characterised in that described post
Shape supporting leg（2b）For length-adjustable telescopic structure.
6. a kind of half-dried electrode for bioelectrical signals sensing according to claim 2, it is characterised in that described post
Shape supporting leg（2b）Tail end with a mushroom shaped.
7. a kind of half-dried electrode for bioelectrical signals sensing according to claim 1, it is characterised in that described
Support base（1）It is provided with and sensing element（4）The high input high impedance buffer amplifier of electrical connection.
8. a kind of half-dried electrode for bioelectrical signals sensing according to claim 1, it is characterised in that described from
Sub- sustained release（3）For granule filler（3a）, or fixed-type entirety（3b）.
9. a kind of half-dried electrode for bioelectrical signals sensing according to claim 8, it is characterised in that described
Grain implant（3a）It is the polymer containing high suction conducting liquid.
10. a kind of half-dried electrode for bioelectrical signals sensing according to claim 8, it is characterised in that described
Fixed-type entirety（3b）For the porous ceramicss of conducting solution, or/and non-sticky hydrogel, or/and fabric can be absorbed,
Or/and foam.
11. a kind of half-dried electrodes for bioelectrical signals sensing according to claim 8, it is characterised in that described
Granule filler（3a）It is filled at least one supporting leg（2）Skin contact jaw cavity in, its contact surface is provided with sand
The micropore of leakage shape（2.3）；Or it is filled at least one supporting leg（2）Skin contact jaw, its contact surface is pasted/is enclosed with semi-transparent
Film or ion permeable membrane.
12. a kind of half-dried electrodes for bioelectrical signals sensing according to claim 8, it is characterised in that described
Fixed-type entirety（3b）It is embedded at least one supporting leg（2）Skin contact jaw；Or it is positioned over sensing element（4）Table
Face.
13. a kind of half-dried electrode for bioelectrical signals sensing according to claim 8, it is characterised in that described
Fixed-type entirety（3b）Skin contact jaw with taper, hemispherical or mushroom shaped.
14. a kind of half-dried electrodes for bioelectrical signals sensing according to claim 8, it is characterised in that described
Sensing element（4）It is made up of flexible conducting material coating Ag/AgCl, described conductive material is conductive plasticss, electric silica gel is led
One or more of electric rubber are composited；Described conducting liquid is the solution for including water, or/and chloride ion.
A kind of 15. systems for bioelectrical signals sensing, it is characterised in that：Including half described in any one of claim 1-14
Dry electrode.
A kind of 16. methods for bioelectrical signals sensing, it is characterised in that：Step be by described in any one of claim 1-14
Half-dried positioning of electrode become and connect with the skin of experimenter.
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| CN108652620A (en) * | 2018-05-30 | 2018-10-16 | 华南理工大学 | Flexible half dry type multilayered structure electrode for acquiring EEG signals |
| CN109893127A (en) * | 2019-03-25 | 2019-06-18 | 惠州善雅医疗器械有限公司 | Anaesthesia depth monitor |
| CN110432893A (en) * | 2019-08-06 | 2019-11-12 | 苏州米特希赛尔人工智能有限公司 | 3 Lead ambulatory electrocardiogram monitoring device of back belt type |
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| CN108652620A (en) * | 2018-05-30 | 2018-10-16 | 华南理工大学 | Flexible half dry type multilayered structure electrode for acquiring EEG signals |
| CN109893127A (en) * | 2019-03-25 | 2019-06-18 | 惠州善雅医疗器械有限公司 | Anaesthesia depth monitor |
| CN109893127B (en) * | 2019-03-25 | 2021-06-25 | 惠州善雅医疗器械有限公司 | Anesthesia depth monitor |
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| CN111419229A (en) * | 2020-03-17 | 2020-07-17 | 上海交通大学 | Quasi-dry electrode for electroencephalogram acquisition and preparation method thereof |
| CN112967832A (en) * | 2021-02-01 | 2021-06-15 | 天津理工大学 | Flexible comb-shaped semi-dry electrode and preparation method thereof |
| CN114176608A (en) * | 2021-12-28 | 2022-03-15 | 西安臻泰智能科技有限公司 | Dry electrode electroencephalogram acquisition module and electroencephalogram acquisition system |
| US11724099B1 (en) * | 2022-08-16 | 2023-08-15 | Brain Electrophysiology Laboratory Company, LLC | Semi-dry electrode for a neural sensor net |
| CN116364338A (en) * | 2023-04-27 | 2023-06-30 | 特变电工山东鲁能泰山电缆有限公司 | Cable semi-conductive buffer water-blocking composite tape, cable and manufacturing method |
| CN116364338B (en) * | 2023-04-27 | 2024-03-12 | 特变电工山东鲁能泰山电缆有限公司 | Cable semi-conductive buffer water-blocking composite tape, cable and manufacturing method |
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