CN102908139B - Dry type medical electrode - Google Patents
Dry type medical electrode Download PDFInfo
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- CN102908139B CN102908139B CN201210375483.4A CN201210375483A CN102908139B CN 102908139 B CN102908139 B CN 102908139B CN 201210375483 A CN201210375483 A CN 201210375483A CN 102908139 B CN102908139 B CN 102908139B
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- clip
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Abstract
The invention discloses a dry type medical electrode. The electrode is an elastic-clip-shaped electrode formed by a pair of conductive clips which are symmetric by two edges and crossed in tooth shape. A plurality of projections contacting with scalp are arranged at the bottoms of the conductive clips. By adopting the elastic clip-shaped electrode formed by a pair of the conductive rubber clips which are symmetric by two edges and crossed in tooth shaped, hairs are separated by the conductive tooth-shaped elastic clips, the conductive electrode fixed by the clipped hair can directly contact with the scalp, and meanwhile, rough projections are arranged on the surface of the bottom of the tooth-shaped electrode and can directly contact with the scalp, so that the skin of the scalp can be pressed to be rough, friction coefficient between the electrode and the scalp is increased, contact surface of the electrode and the scalp is enlarged, and contact impedance of the electrode and the scalp is reduced without hurting the hairs and the scalp. The dry type medical electrode is convenient to operate, and many problems caused by using of electrode adhesives (paste) in the prior art are avoided.
Description
Technical field
The present invention relates to field of medical technology, relate in particular to a kind of medical cerebral nerve and detect and the record of function modulating equipment and the dry type medical electrode of stimulation.
Background technology
The record of non-invasive Neurons of Cerebral Cortex bioelectrical activity mainly with electroencephalogram, bring out current potential, event related potential, magneticencephalogram and carry out acquisition and recording, because magneticencephalogram is expensive, electroencephalogram and bring out current potential and become conventional recording means.Because brain electricity physiological signal is very weak, extraneous electromagnetic interference is very strong, in order to improve the signal to noise ratio of detection, need to reduce the input impedance of detecting electrode as far as possible, allows and between electrode and scalp, has firmly close contact.
At present, electroencephalogram, the recording electrode that brings out current potential are all metaldisk electrode, carry out electroencephalogram, when bringing out current potential and checking, need to separate hair in the part of installing electrodes clinically to patient, between scalp and electrode, smear conducting resinl, conductive paste or conductive liquid, then solidify with collodion is bonding.Generally, electroencephalogram has 16 ~ 32 inputs to lead, and therefore each 1 electrode of minimum needs that leads, detects an electroencephalogram tens electrodes need to be installed, and doctor's operation is extremely bothered, waste time and energy.
In addition, dense hair is also not easy to be coated with conductive paste (glue), fail to stick if painting has been lacked, if be coated with many, makes conductive area expand, and makes to record position, detection range generation error, is all unfavorable for the record of brain nervous cell bioelectrical activity.After detection finishes, while extracing electrode, conducting resinl is solidificated on hair, scalp and also can pulls apart hair, pulls and hinders scalp, causes pain, and residual glue trace is also difficult to clean; In addition, while extracing electrode, easily pull apart electrode cable, simultaneously on electrode solid glue cream be also difficult to dry clean, thereby electrode life is shortened.
In order to overcome the trouble of installing electrodes, prior art has the mode that adopts elastic nylon cap, metal electrode is riveted on electrode cap, in the middle of electrode, leave aperture, during installing electrodes, first put on and fasten electrode cap, at each hole injection electrode electrode glue, make electrode across hair again, rely on glue to contact with scalp, although electrode cap can improve electrode installation rate, but because individual hair is dense, move towards different, be difficult to guarantee the even coating of electrode glue, thereby be difficult to guarantee the low resistance of electrode contact.The cleaning of electrode cap is difficult simultaneously, cost is high is to be also difficult to universal reason.
Prior art also has the mode of directly inserting scalp with needle electrode, although this kind of mode can well records electrophysiologicalsignals signals, operate fast and convenient, but thing followed problem is needle electrode, and to thrust scalp be not a kind of non invasive method, easily cause the side effect such as pain, hemorrhage, infection and can not be accepted by patient, meanwhile, the result that the pain that needle electrode causes also affects record or stimulates.
At present, the irritability of brain function being regulated and also will use electrical transcranial stimulation technique, equally also need to use the electrode of contact hair and scalp, is also to adopt conductive gelatin, wrapping fixed electrode at present, fitting operation, cleaning, clean all pretty troublesome.
Summary of the invention
Main purpose of the present invention is to provide and a kind ofly reduces the contact impedance of electrode and scalp, do not damage hair and scalp and simple and quick dry type medical electrode again.
In order to achieve the above object, the present invention proposes a kind of dry type medical electrode, and described electrode is the elastic clip increment electrode that the pair of conductive folder symmetrical by both sides, dentation intersects combines.
Preferably, the bottom of described conductive clamp is provided with the some projections that contact with scalp.
Preferably, the side of described conductive clamp is provided with the jointing holes for connection electrode conducting wire.
Preferably, described conductive clamp comprises the dentation clip that is arranged on the handle of upper end and is arranged on lower end, is connected with described handle; Described in two, the handle of conductive clamp upper end inner side is provided with rotation central axis and is set on the torsion spring on described rotation central axis, described in two, conductive clamp can rotate relative to described rotation central axis simultaneously under the effect of described torsion spring, and the dentation clip of two conductive clamp lower ends is intersected or separation.
Preferably, the handle of described conductive clamp upper end inner side is provided with rotating shaft installing hole, and described rotation central axis is enclosed within described rotating shaft installing hole.
Preferably, the arc shape that described dentation clip is evagination, its bottom is tending towards level.
Preferably, the bottom of described dentation clip is provided with some described projections that contact with scalp.
Preferably, the handle of described conductive clamp upper end is outwards turnover shape.
Preferably, described conductive clamp is conductive rubber folder.
A kind of dry type medical electrode that the present invention proposes, adopt the pair of conductive rubber that both sides are symmetrical, dentation intersects to press from both sides the elastic clip increment electrode combining, utilize the dentation Flexible clamp of conduction to separate hair, and utilize the hair fixed electrode of clamping, allow conductive electrode directly touch scalp; Also can coarse projection be set in dentation electrode lower surface simultaneously, directly contact scalp, scalp skin is pressed as exasperate, increase the coefficient of friction of electrode and scalp, increase the contact surface of electrode and scalp, thereby reduce the contact impedance of electrode and scalp, and don't damage scalp, it is easy to operate, and the problems of having avoided prior art to use electrode glue (cream) to bring.
Accompanying drawing explanation
Fig. 1 is the positive perspective view of dry type medical electrode of the present invention preferred embodiment;
Fig. 2 is the back side perspective view of dry type medical electrode of the present invention preferred embodiment.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
The specific embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention considers, the defect of existing all electrodes and not enough its basic reason are blocking of hair, make electrode can not directly contact scalp, and hair are dense, soft, insulating makes electrode be not easy to fix, and contact resistance is difficult to reduce.And prior art scalp recording electrode used, stimulating electrode, electrode cap etc. all need to use glue, liquid, conductive paste, rely on conducting resinl, liquid to detect cerebral neural bioelectrical activity as conduction intermediary.If fully phase out the mediator of conduction, can simplify the operation step, save more expensive conductive paste and the cost of conductive liquid, can also save the electrode set-up time simultaneously, raising equipment utilization benefit, exempt the trouble of electrode clean, the cleaning of patient's scalp and hair-care, and can extend electrode life etc.
Based on above-mentioned analysis, the present invention adopts dry-type electrode, but the problem that dryness electrode will overcome is how to overcome the covering of dense hair to scalp, how to make dryness electrode directly contact scalp, reduce contact impedance, how easy operation and how to install efficiently and to withdraw from electrode, therefore, the present invention adopts elastic clip increment electrode.
Particularly, see figures.1.and.2, Fig. 1 is the positive perspective view of dry type medical electrode of the present invention preferred embodiment; Fig. 2 is the back side perspective view of dry type medical electrode of the present invention preferred embodiment.
As shown in Figures 1 and 2, preferred embodiment of the present invention proposes a kind of dry type medical electrode 1, and described electrode 1 is the pair of conductive folder 11 elastic clip increment electrodes that combine symmetrical by both sides, dentation intersects.
Above-mentioned conductive clamp 11 specifically can adopt conductive rubber folder, and it comprises the dentation clip 13 that is arranged on the handle 12 of upper end and is arranged on lower end, is connected with described handle 12; Described in two, handle 12 inner sides of conductive clamp 11 upper ends are provided with rotation central axis 14 and are set on the torsion spring 15 on described rotation central axis 14, described in two, conductive clamp 11 can rotate relative to described rotation central axis 14 simultaneously under the effect of described torsion spring 15, and the dentation clip 13 of two conductive clamp 11 lower ends is intersected or separation.
For rotation central axis 14 is installed, in handle 12 inner sides of conductive clamp 11 upper ends, be provided with rotating shaft installing hole, described rotation central axis 14 is enclosed within described rotating shaft installing hole.
For installing electrodes 1, lateral surface at conductive clamp 11 is provided with the jointing holes 17 for connection electrode conducting wire, specifically in the outer lower side of conductive clamp 11 handles 12, be provided with electrode 1 jointing holes 17, this jointing holes 17 is hollow form, there is telescopic resilience, facilitate electrode 1 to patch dismounting, be easily firmly connected with the conducting wire of recording electrode or stimulating electrode simultaneously.
The arc shape that above-mentioned dentation clip 13 is evagination, its bottom is tending towards level so that electrode 1 bottom can well with scalp close contact, and can increase the contact area of electrode 1 and scalp.
Further, the present embodiment is also provided with some projections 16 in dentation clip 13 bottoms of conductive clamp 11 lower ends, further to increase contact surface and the frictional force of electrode 1 and scalp, reduces electrode 1 contact resistance.
The said structure of the present embodiment, dentation conductive electrode 1 and spring clip are organically integrated, simple and convenient during operation, as long as using clip, clamp, with the action of combing one's hair, clutch two handles 12 of electrode 1 upper end, allow the dentation clip 13 of electrode 1 lower end open, insert hair, hair is separated, directly contact scalp, then hands unclamps two handles 12 of electrode 1 upper end, the dentation clip 13 of electrode 1 lower end is clamped hair automatically, allows hair fixed electrode 1, and hair is more fixing more firm.
Also only need clutch clip unclamps electrode 1 again to remove electrode 1, convenient taking-up, can not injure scalp and hair, keep head dummy former state, the whole inspection of patient, therapeutic process are more simply comfortable, make original electrode 1 install, withdraw from need tens minutes time decreased to a few minutes, alleviated medical worker's labor intensity, shortened checking treatment time, improved the utilization benefit of armarium, and reduced medical treatment cost.
To utilize clinically the technology of scalp electrode to comprise that EEG signals detects and stimulates through cranial nerve.Such as conventional electroencephalogram, bring out the technology such as current potential, biofeedback, event related potential, electrical transcranial stimulation and all will use electrode, and prior art only has with conducting resinl, conductivity water, conductive paste etc., its troublesome poeration is time-consuming, and glue easily make dirty patient's hair and skin, electrode and scalp all need timely cleaning, and also withdrawing from of electrode easily broken damage etc. by glue.
1 defect that overcomes existing electrode of the present embodiment dryness electrode, omitted electrode glue (cream) or conducting liquid, saved cost, saved the operating time, simple and quick, reduce the cleaning of electrode and head, hair, reduced patient and operation doctor's worry.。
Because medical electrode use extensively, frequent operation, with dryness electrode 1, replace adhesive type electrode in the past has marked improvement in clinical practice.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. dry type medical electrode, it is characterized in that, described electrode is the elastic clip increment electrode that the pair of conductive folder symmetrical by both sides, dentation intersects combines, and described conductive clamp comprises the dentation clip that is arranged on the handle of upper end and is arranged on lower end, is connected with described handle; Described in two, the handle of conductive clamp upper end inner side is provided with rotation central axis and is set on the torsion spring on described rotation central axis, described in two, conductive clamp can rotate relative to described rotation central axis simultaneously under the effect of described torsion spring, and the dentation clip of two conductive clamp lower ends is intersected or separation; The arc shape that described dentation clip is evagination, its bottom is tending towards level, and the outer surface of the bottom of described dentation clip is provided with some projections that contact with scalp.
2. dry type medical electrode according to claim 1, is characterized in that, the lateral surface of described conductive clamp is provided with the jointing holes for connection electrode conducting wire.
3. dry type medical electrode according to claim 2, is characterized in that, the handle inner side of described conductive clamp upper end is provided with rotating shaft installing hole, and described rotation central axis is enclosed within described rotating shaft installing hole.
4. according to the dry type medical electrode described in claim 2 or 3, it is characterized in that, the handle of described conductive clamp upper end is outwards turnover shape.
5. dry type medical electrode according to claim 1, is characterized in that, described conductive clamp is conductive rubber folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375483.4A CN102908139B (en) | 2012-09-29 | 2012-09-29 | Dry type medical electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375483.4A CN102908139B (en) | 2012-09-29 | 2012-09-29 | Dry type medical electrode |
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| CN102908139A CN102908139A (en) | 2013-02-06 |
| CN102908139B true CN102908139B (en) | 2014-09-03 |
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| CN201210375483.4A Active CN102908139B (en) | 2012-09-29 | 2012-09-29 | Dry type medical electrode |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919547B (en) * | 2014-04-08 | 2015-10-14 | 北京工业大学 | A kind of through scalp brain signal checkout gear device of transfering |
| CN104799853A (en) * | 2015-04-09 | 2015-07-29 | 中国科学院半导体研究所 | Tough claw type dry electrode used for recording electroencephalogram and preparation method |
| EP3677176A4 (en) * | 2017-08-29 | 2021-04-28 | Toyobo Co., Ltd. | Living-body contact electrode and clothing for measuring living-body information |
| CN109893133B (en) * | 2019-04-08 | 2020-06-16 | 上海大学 | Noninvasive acquisition system for neural signals |
| US20220233358A1 (en) * | 2019-06-13 | 2022-07-28 | Shanghai Ninth People's Hospital, Shanghai Jiaotong University School Of Medicine | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| CN116236205A (en) * | 2022-12-19 | 2023-06-09 | 天津大学 | Multichannel miniature brain electricity acquisition system |
| CN116211310A (en) * | 2023-05-09 | 2023-06-06 | 中国第一汽车股份有限公司 | Myoelectric sensor and detection method thereof |
Citations (2)
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|---|---|---|---|---|
| CN1555762A (en) * | 2004-01-01 | 2004-12-22 | 浙江大学 | Reference electrode clamp used for biological resistance, impedance, electric potential measurement |
| CN102458242A (en) * | 2009-06-29 | 2012-05-16 | 索尼公司 | Bio-signal measurement equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3228222B2 (en) * | 1998-05-26 | 2001-11-12 | 日本電気株式会社 | Clip type ECG electrode |
| US20030156429A1 (en) * | 2002-02-15 | 2003-08-21 | Macdonald Joel | Hair ornament having a plurality of optic fibers and three primary color light-emitting diodes |
| JP2011505925A (en) * | 2007-04-11 | 2011-03-03 | スター ライフ サイエンシーズ コーポレイション | Non-invasive photoplethysmographic sensor platform for mobile animals |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555762A (en) * | 2004-01-01 | 2004-12-22 | 浙江大学 | Reference electrode clamp used for biological resistance, impedance, electric potential measurement |
| CN102458242A (en) * | 2009-06-29 | 2012-05-16 | 索尼公司 | Bio-signal measurement equipment |
Non-Patent Citations (1)
| Title |
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| JP特开平11-332843A 1999.12.07 |
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