CN102908139A - Dry type medical electrode - Google Patents
Dry type medical electrode Download PDFInfo
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- CN102908139A CN102908139A CN2012103754834A CN201210375483A CN102908139A CN 102908139 A CN102908139 A CN 102908139A CN 2012103754834 A CN2012103754834 A CN 2012103754834A CN 201210375483 A CN201210375483 A CN 201210375483A CN 102908139 A CN102908139 A CN 102908139A
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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 come acquisition and recording because magneticencephalogram is expensive, electroencephalogram and bring out current potential and become recording means commonly used.Because the 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, and allowing has firmly close contact between electrode and the scalp.
At present, electroencephalogram, the recording electrode that brings out current potential all are metaldisk electrode, carry out electroencephalogram, when bringing out current potential and checking, need to separate hair in the part of installing electrodes to patient clinically, between scalp and electrode, smear conducting resinl, conductive paste or conductive liquid, use again the bonding curing of collodion.Generally speaking, 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, so that doctor's operation extremely bothers, wastes time and energy.
In addition, dense hair also is not easy to be coated with conductive paste (glue), has lacked then fail to stickly if be coated with, if be coated with many conductive area is enlarged, and makes record position, detection range generation error, all is unfavorable for the record of brain nervous cell bioelectrical activity.After detecting end, conducting resinl is solidificated on hair, the scalp and also can pulls apart hair when extracing electrode, pulls and hinders scalp, causes pain, and residual glue trace also is difficult to clean; In addition, pull apart easily electrode cable when extracing electrode, simultaneously on the electrode solid glue cream also be 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 medicated cap, metal electrode is riveted on the electrode cap, in the middle of electrode, leave aperture, put on first and fasten electrode cap during installing electrodes, make electrode across hair at each hole injection electrode electrode glue again, rely on glue to contact with scalp, although electrode cap can improve the electrode installation rate, but since individual hair dense, move towards difference, 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 also is the reason that is difficult to popularize.
Prior art also has the mode of directly inserting scalp with needle electrode, although this kind 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, cause easily the side effect such as pain, hemorrhage, infection and can not be accepted by patient, simultaneously, the pain that causes of the needle electrode result that also affects record or stimulate.
At present, also will use electrical transcranial stimulation technique to the irritability adjusting of brain function, equally also need to use the electrode of contact hair and scalp, also be to adopt conductive gelatin, wrapping fixed electrode at present, and fitting operation, cleaning, cleaning are all pretty troublesome.
Summary of the invention
Main purpose of the present invention provides 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, that 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 the connection electrode conducting wire.
Preferably, described conductive clamp comprises the handle that is arranged on the upper end and the dentation clip that is arranged on the lower end, links to each other with described handle; The handle installed inside of two described conductive clamps upper end has rotation central axis and is set on torsion spring on the described rotation central axis, two described conductive clamps can rotate by simultaneously relatively described rotation central axis under the effect of described torsion spring, and make the dentation clip of two conductive clamp lower ends intersect or separate.
Preferably, the handle inboard of described conductive clamp upper end is provided with the rotating shaft installing hole, and described rotation central axis is enclosed within the described rotating shaft installing hole.
Preferably, described dentation clip is the arc shape of evagination, and 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 on the described conductive clamp outwards is the turnover shape.
Preferably, described conductive clamp is the 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 that combines, 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 be 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 the damage scalp, it is easy to operate, and the problems of having avoided prior art to use electrode glue (cream) to bring.
Description of drawings
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 purpose 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 that the defective 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, insulation makes electrode be not easy to fix, and contact resistance is difficult to reduce.And the used scalp recording electrode of prior art, 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, then can simplify the operation step, save more expensive conductive paste and the cost of conductive liquid, simultaneously can also save the electrode set-up time, raising equipment utilization benefit, exempt the trouble of electrode clean, the cleaning of patient's scalp and hair-care, and can prolong electrode life etc.
Based on above-mentioned analysis, the present invention adopts dry-type electrode, but the problem that the dryness electrode will overcome is how to overcome dense hair to the covering of scalp, how to make the 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, that dentation intersects.
Above-mentioned conductive clamp 11 specifically can adopt the conductive rubber folder, and it comprises the handle 12 that is arranged on the upper end and the dentation clip 13 that is arranged on the lower end, links to each other with described handle 12; Handle 12 installed inside of two described conductive clamps, 11 upper ends have rotation central axis 14 and are set on torsion spring 15 on the described rotation central axis 14, two described conductive clamps 11 can rotate by simultaneously relatively described rotation central axis 14 under the effect of described torsion spring 15, and make the dentation clip 13 of two conductive clamps, 11 lower ends intersect or separate.
For rotation central axis 14 is installed, be provided with the rotating shaft installing hole in handle 12 inboards of conductive clamp 11 upper ends, described rotation central axis 14 is enclosed within the described rotating shaft installing hole.
For installing electrodes 1, be provided with jointing holes 17 for the connection electrode conducting wire at the lateral surface of conductive clamp 11, specifically be provided with electrode 1 jointing holes 17 in the outer lower side of conductive clamp 11 handles 12, this jointing holes 17 is hollow form, has telescopic resilience, make things convenient for electrode 1 to patch dismounting, firmly be connected with the conducting wire of recording electrode or stimulating electrode easily simultaneously.
Above-mentioned dentation clip 13 is the arc shape of evagination, and its bottom is tending towards level so that electrode 1 bottom can well with the scalp close contact, and can increase the contact area of electrode 1 and scalp.
Further, present embodiment also is provided with some projections 16 in dentation clip 13 bottoms of conductive clamp 11 lower ends, with contact surface and the frictional force of further increase electrode 1 with scalp, reduces electrode 1 contact resistance.
The said structure of 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, the convenient taking-up, can not injure scalp and hair, keep the 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 electroencephalogram commonly used, 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 withdrawing from also of electrode broken damage etc. by glue easily.
1 defective that overcomes existing electrode of 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, replacing adhesive type electrode in the past with dryness electrode 1 has marked improvement in clinical practice.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. dry type medical electrode is characterized in that, described electrode is the elastic clip increment electrode that the pair of conductive folder symmetrical by both sides, that dentation intersects combines.
2. dry type medical electrode according to claim 1 is characterized in that, the bottom of described conductive clamp is provided with the some projections that contact with scalp.
3. 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 the connection electrode conducting wire.
4. dry type medical electrode according to claim 2 is characterized in that, described conductive clamp comprises the handle that is arranged on the upper end and the dentation clip that is arranged on the lower end, links to each other with described handle; The handle installed inside of two described conductive clamps upper end has rotation central axis and is set on torsion spring on the described rotation central axis, two described conductive clamps can rotate by simultaneously relatively described rotation central axis under the effect of described torsion spring, and make the dentation clip of two conductive clamp lower ends intersect or separate.
5. dry type medical electrode according to claim 4 is characterized in that, the handle inboard of described conductive clamp upper end is provided with the rotating shaft installing hole, and described rotation central axis is enclosed within the described rotating shaft installing hole.
6. dry type medical electrode according to claim 4 is characterized in that, described dentation clip is the arc shape of evagination, and its bottom is tending towards level.
7. dry type medical electrode according to claim 6 is characterized in that, the bottom of described dentation clip is provided with some described projections that contact with scalp.
8. each described dry type medical electrode is characterized in that according to claim 4-7, and the handle of described conductive clamp upper end outwards is the turnover shape.
9. dry type medical electrode according to claim 1 is characterized in that, described conductive clamp is the 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 true CN102908139A (en) | 2013-02-06 |
| CN102908139B 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919547A (en) * | 2014-04-08 | 2014-07-16 | 北京工业大学 | Hair shifting device for scalp passing brain signal detecting device |
| 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 |
| CN109893133A (en) * | 2019-04-08 | 2019-06-18 | 上海大学 | A kind of noninvasive acquisition system of nerve signal |
| CN110996783A (en) * | 2017-08-29 | 2020-04-10 | 东洋纺株式会社 | Biological contact electrode and clothing for measuring physiological information |
| WO2020249069A1 (en) * | 2019-06-13 | 2020-12-17 | 上海交通大学医学院附属第九人民医院 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| 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 |
| CN117017306A (en) * | 2022-12-19 | 2023-11-10 | 天津大学 | Multichannel miniature brain electricity acquisition system |
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| JPH11332843A (en) * | 1998-05-26 | 1999-12-07 | Nec Gumma Ltd | Clip type electrocardiographic 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 |
| CN1555762A (en) * | 2004-01-01 | 2004-12-22 | 浙江大学 | Reference electrode clamp used for biological resistance, impedance, electric potential measurement |
| US20090149727A1 (en) * | 2007-04-11 | 2009-06-11 | Starr Life Sciences Corp. | Noninvasive Photoplethysmographic Sensor Platform for Mobile Animals |
| CN102458242A (en) * | 2009-06-29 | 2012-05-16 | 索尼公司 | Bio-signal measurement equipment |
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2012
- 2012-09-29 CN CN201210375483.4A patent/CN102908139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11332843A (en) * | 1998-05-26 | 1999-12-07 | Nec Gumma Ltd | Clip type electrocardiographic 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 |
| CN1555762A (en) * | 2004-01-01 | 2004-12-22 | 浙江大学 | Reference electrode clamp used for biological resistance, impedance, electric potential measurement |
| US20090149727A1 (en) * | 2007-04-11 | 2009-06-11 | Starr Life Sciences Corp. | Noninvasive Photoplethysmographic Sensor Platform for Mobile Animals |
| CN102458242A (en) * | 2009-06-29 | 2012-05-16 | 索尼公司 | Bio-signal measurement equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919547A (en) * | 2014-04-08 | 2014-07-16 | 北京工业大学 | Hair shifting device for scalp passing brain signal detecting device |
| 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 |
| CN110996783A (en) * | 2017-08-29 | 2020-04-10 | 东洋纺株式会社 | Biological contact electrode and clothing for measuring physiological information |
| CN109893133A (en) * | 2019-04-08 | 2019-06-18 | 上海大学 | A kind of noninvasive acquisition system of nerve signal |
| CN109893133B (en) * | 2019-04-08 | 2020-06-16 | 上海大学 | Noninvasive acquisition system for neural signals |
| WO2020249069A1 (en) * | 2019-06-13 | 2020-12-17 | 上海交通大学医学院附属第九人民医院 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| CN117017306A (en) * | 2022-12-19 | 2023-11-10 | 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 |
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| Publication number | Publication date |
|---|---|
| CN102908139B (en) | 2014-09-03 |
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