CN107411735A - A kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof - Google Patents
A kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof Download PDFInfo
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- CN107411735A CN107411735A CN201710766029.4A CN201710766029A CN107411735A CN 107411735 A CN107411735 A CN 107411735A CN 201710766029 A CN201710766029 A CN 201710766029A CN 107411735 A CN107411735 A CN 107411735A
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- type electrode
- dry
- interconnecting means
- flexible
- electrical interconnecting
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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
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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
- A61B5/68—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Electrotherapy Devices (AREA)
Abstract
The present invention relates to a kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof.The electrode is applied to the brain electricity without hair or few hair area（Forehead region）, muscle electric signal, the signal transduction such as electrocardio.The dry electrode is made up of two parts：Electrically conductive flexible dry type electrode body and electrical interconnecting means.Electrically conductive flexible dry type electrode body uses flexible compound conductive material, has flexible and good electric conductivity concurrently；Surface is three dimension arch curved surface, can fully be contacted with skin, and can suppress motion artifactses.Electrical interconnecting means are integrally cast in electrode using integral forming process, reduce process complexity, and reduce electrical interconnecting means electrode body contact impedance.The present invention have without conducting resinl/cream, simple to operate, impedance is low, long time stability, flexibility, wearing comfort safety, cost is low, processing technology is simple the advantages of.
Description
Technical field
The present invention relates to medicine equipment and the electrode of wearable electronic applications, in particular it relates to a kind of measurement without hair or
Flexible dry-type electrode of bioelectrical signals of few hair area and preparation method thereof.
Background technology
With the development of economy and society, people have increasing concern, the hair of medicine and hygiene fieldses to life and health
Open up flourishing as never before.The electro-physiological signals of evaluation health degree have critical role in terms of medical diagnosis, are indispensable passes
Key means.Bioelectrical signals include electrocardiogram（Electrocardiograms, ECG）, electroencephalogram
（Electroencephalogram, EEG）, electroculogram（Electrooculograms, EOG）And electromyogram
（Electromyograms, EMG）, these signal forms include substantial amounts of physiologic information, by modern bioinstrumentation technology, are
Clinical physiological monitoring that the global medical demand expanded day by day provides non-intrusion type, that cost is cheap and drug therapy.
Electrode for medical service can extract these electric signals to be analyzed for people, is indispensable important in Medical Instruments
Senser element.In existing acquiring biological electric signals mode, signal generally is gathered using silver/silver chlorate wet electrode, although
This wet electrode and skin contact impedance are smaller, can collect the bioelectrical signals of high s/n ratio, but it still suffers from many lack
Point.By taking electrode for encephalograms as an example：First, the abrasive pastes that cuticula is removed in electrode position needs are wiped to reduce Skin Resistance,
And apply and spread conductive paste, conductive paste needs the time to diffuse into cuticula, so that whole set-up procedure wastes time and energy；Its
Secondary, the use of conductive paste can make the skin of tester dirty and bring very big discomfort, and serious conditions even can cause allergy
Or the side effect such as exanthemv；Finally, passage conductive paste can evaporate exsiccation and cause electrode performance to deteriorate over time, therefore be not suitable for
Long term monitoring.
Dry electrode need not use conductive paste in use, because its is convenient and swift and long-time stability turn into tradition
The ideal substitute of wet electrode.Dry electrode technology has obtained the extensive concern of scientific research personnel in recent years, based on Different electrodes material
Accordingly proposed with the dry electrode of structure.But these dry electrodes in use exist such as contact impedance it is higher, to motion
The shortcomings of artefact is sensitive, electrode is too hard and uncomfortable.
The content of the invention
For above-mentioned the deficiencies in the prior art, it is used to gather without hair or few it is an object of the invention to provide one kind
Flexible dry-type electrode of the bioelectrical signals of hair area and preparation method thereof, to solve contact impedance existing for existing dry electrode
The problems such as height, comfort level difference.
Technical proposal that the invention solves the above-mentioned problems is as follows：
A kind of flexible dry-type electrode, for acquiring biological electric signals, including：Flexible dry type electrode body and electrical interconnecting means, wherein
Flexible dry type electrode body uses flexible conductive composite material, and its surface is three dimension arch curved surface, is easily closely connect with skin surface
Touch, the part that electrical interconnecting means stretch out flexible dry type electrode body is used to connect rear end measuring circuit electric wire, and electrical interconnecting means use one
Integrally cast couples body formed technique with electrode body.
Further implement, the material of the electrically conductive flexible dry type electrode body is conductive rubber or electric silica gel, i.e.,
Base material is rubber or silica gel, and filler is carbon conductive filler（Such as carbon black, CNT, graphene）Or metal system conduction is filled out
Material（Such as silver powder, aluminium are silver-plated, nickel powder）At least one of.
Further implement, the surface of the electrically conductive flexible dry-type electrode contact skin is arc three-dimension curved surface, easily with
Skin is brought into close contact contact.Its body two-dimensional shapes be rectangle, circle or other.
Further implement, electrical interconnecting means part is：Metallic conduction snap-fastener, metallic conduction connection sheet or the connection of other metals
Part, its metal material are gold, silver, copper, platinum etc..The part that electrical interconnecting means contact with electrode body can be with perforate or using other
Structure such as probe etc. increases contact area.
The invention provides a kind of preparation method of flexible dry-type electrode, comprise the following steps：
1）The mould of flexible dry-type electrode is made using the method for machining；
2）Electrical interconnecting means are placed in a mold and reserve joint location, then carry out the cast of conductive material, such electrical interconnecting means
It can be integrally formed with body.
In above-mentioned preparation method, mold bottom is arc three-dimension curved surface, mould top view two-dimensional shapes be rectangle, circle or
Other.
In above-mentioned preparation method, conductive material is conductive rubber or electric silica gel, i.e. base material is rubber or silica gel, filler
For carbon conductive filler（Such as carbon black, CNT, graphene）Or me tallic conductive filler（Such as silver powder, aluminium is silver-plated, nickel powder
Deng）At least one of.
In above-mentioned preparation method, electrical interconnecting means part is：Metallic conduction snap-fastener, metallic conduction connection sheet or other metals connect
Relay part, its metal material are gold, silver, copper, platinum etc..The part that electrical interconnecting means contact with electrode body can be with perforate or using it
His structure such as probe etc. increases contact area.
Compared with prior art, the present invention has following beneficial effect：
The flexible dry type electrode body of the present invention uses flexible conductive composite material, and surface is three dimension arch curved surface, can be with skin more
Good fitting, increases the contact area of electrode and skin, while can suppress motion artifactses, the quality of increase collection signal and stably
Property；Electrode body uses flexible compound conductive material, has flexible and good electric conductivity concurrently；Electrical interconnecting means use integral forming process one
Body is cast in electrode, reduces process complexity, and reduces electrical interconnecting means-electrode body contact impedance, and is easy to connection to measure
Circuit.
Brief description of the drawings
Fig. 1 a be embodiment flexibility dry-type electrode contact surface upward when overall structure diagram；
Fig. 1 b are the structural representation of the electrical interconnecting means side of flexible dry-type electrode shown in Fig. 1 a.
Fig. 2 a be another embodiment flexibility dry-type electrode contact surface upward when overall structure diagram；
Fig. 2 b are the opposite side structural representation of flexible dry-type electrode shown in Fig. 2 a.
Fig. 3 is the electrode preparation method flow chart of one embodiment of the invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.It should be appreciated that these embodiments are described only
It is in order that those skilled in the art better understood when and then realize the disclosure, and not limit the disclosure in any way
Scope.It is noted that if the following process or parameter for having not special detailed description, is that those skilled in the art can refer to
Prior art understand or realize.
As shown in figure 1, this example provides a kind of flexibility for being used to gather the bioelectrical signals without hair or few hair area
Dry-type electrode, including：Electrically conductive flexible dry type electrode body 1 and electrical interconnecting means 2, wherein electrically conductive flexible dry type electrode body 1
For with skin contact, made using flexible conductive composite material, its surface is three dimension arch curved design, and electrical interconnecting means 2 are used
It is connected in measuring circuit, using integral forming process, integrally cast couples electrical interconnecting means 2 with electrode body 1.
The material of described electrically conductive flexible dry type electrode body 1 is conductive rubber or electric silica gel, i.e. base material is rubber
Or silica gel, filler are carbon conductive filler（Such as carbon black, CNT, graphene）Or me tallic conductive filler（As silver powder,
Aluminium is silver-plated, nickel powder etc.）At least one of, the mass ratio of the material specifically adulterated is according to the material specifically adulterated and specific
Process for dispersing determine.
The surface that described electrically conductive flexible dry type electrode body 1 contacts skin is arc three-dimension curved surface, easily tight with skin
Closely connected splice grafting touches.Its body two-dimensional shapes be rectangle, circle or other, as shown in Fig. 1 a, Fig. 1 b, Fig. 2 a, Fig. 2 b.
Described electrical interconnecting means 2 are：Metallic conduction snap-fastener, metallic conduction connection sheet or other metal connection parts, its gold
Category material is gold, silver, copper, platinum etc..The part that electrical interconnecting means contact with electrode body can be with perforate or using other structures such as
Probe etc. increases contact area.
A kind of example is only used as, as shown in figure 3, being a kind of implementation of flexible dry type electrode preparation method provided by the invention
Example flow chart, comprises the following steps：
1）The mould of flexible dry-type electrode is made using the method for machining；
2）Electrical interconnecting means are placed in a mold and reserve joint location, then carry out the cast of conductive material, such electrical interconnecting means
It can be integrally formed with body.
The novel flexible dry-type electrode that the present invention designs, it is advantageous that the electrode is made up of two parts：Electrically conductive flexibility
Dry-type electrode body and electrical interconnecting means.Wherein electrically conductive flexible dry type electrode body uses flexible compound conductive material, has concurrently soft
Property and good electric conductivity；Surface is three dimension arch curved design, can fully be contacted with skin, and can suppress motion artifactses.Electrically connect
Part is integrally cast in electrode using integral forming process, reduces process complexity, and reduces electrical interconnecting means-electrode body contact
Impedance, and be easy to connect measuring circuit.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, it may occur to persons skilled in the art that various deformations or amendments, but in the premise for not departing from disclosure spirit
Under, all modifications and replacement made are fallen within the disclosure protection domain that appended claims define.
Claims (6)
1. a kind of bioelectrical signals flexibility dry-type electrode, for the acquiring biological electric signals without hair or few hair area, it is special
Sign is, including flexible dry type electrode body and electrical interconnecting means, wherein flexible dry type electrode body uses compliant conductive composite wood
Material, flexible dry type electrode body contact surface for can with skin surface be in close contact three dimension arch curved surface, electrical interconnecting means with
Integrally connection is realized in cast to flexible dry type electrode body, and the part of the flexible dry type electrode body of electrical interconnecting means stretching is used for and rear end
Measuring circuit is connected by electric wire.
A kind of 2. bioelectrical signals flexibility dry-type electrode according to claim 1, it is characterised in that the flexible dry type electricity
For the base material for the flexible conductive composite material that pole body uses for conductive rubber or electric silica gel, filler is carbon conductive filler or gold
One or more in category system conductive filler.
3. a kind of bioelectrical signals flexibility dry-type electrode according to claim 1, it is characterised in that the carbon series conductive is filled out
Material includes carbon black, CNT or graphene；The me tallic conductive filler includes that silver powder, aluminium is silver-plated or nickel powder.
A kind of 4. bioelectrical signals flexibility dry-type electrode according to claim 1, it is characterised in that flexible dry-type electrode sheet
The contact surface of body is that to contact the surface of skin be arc three-dimension curved surface, the two-dimensional shapes of flexible dry type electrode body be rectangle,
Circular or other shapes.
5. a kind of bioelectrical signals flexibility dry-type electrode according to claim 1, it is characterised in that electrical interconnecting means are used and led
Electric metal snap-fastener, metallic conduction connection sheet, its metal material are gold, silver, copper or platinum；Electrical interconnecting means and flexible dry type electrode body
The part of contact uses perforate or multiprobe structure.
6. prepare a kind of any one of claim 1 ~ 5 method of bioelectrical signals flexibility dry-type electrode, it is characterised in that profit
The method being machined into makes the mould of flexible dry-type electrode；Electrical interconnecting means are placed in a mold and reserve joint location,
The cast of conductive material is carried out again, makes electrical interconnecting means and this body by integral forming.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710766029.4A CN107411735A (en) | 2017-08-30 | 2017-08-30 | A kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof |
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| CN201710766029.4A CN107411735A (en) | 2017-08-30 | 2017-08-30 | A kind of bioelectrical signals flexibility dry-type electrode and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042128A (en) * | 2017-12-25 | 2018-05-18 | 上海交通大学 | Electrocardiogram monitoring device and its manufacturing method |
| 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 |
| CN108771540A (en) * | 2018-06-25 | 2018-11-09 | 恩识医疗科技(上海)有限公司 | A kind of preparation method of CNT-Ag-PDMS conductive mixtures and its composite dry electrode |
| CN109171709A (en) * | 2018-07-23 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of dry electrode and preparation method thereof |
| CN109464140A (en) * | 2019-01-09 | 2019-03-15 | 浙江强脑科技有限公司 | Bioelectrical signals detection method, equipment and storage medium |
| CN109875551A (en) * | 2019-02-27 | 2019-06-14 | 中山优感科技有限公司 | Small flexible dry-type electrode of a kind of contact impedance and preparation method thereof |
| CN109998546A (en) * | 2019-01-25 | 2019-07-12 | 芯海科技（深圳）股份有限公司 | A kind of evaluation method of human body impedance signal's mass |
| CN110353678A (en) * | 2019-07-10 | 2019-10-22 | 南开大学 | A kind of waterproof electromyography signal sensor based on electric silica gel |
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| CN106551693A (en) * | 2017-01-18 | 2017-04-05 | 包磊 | Textile electrode and electrocardiogram test instrument |
| CN208709880U (en) * | 2017-08-30 | 2019-04-09 | 华南理工大学 | A kind of bioelectrical signals flexibility dry-type electrode |
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| 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 |
| CN102824168A (en) * | 2012-07-03 | 2012-12-19 | 上海交通大学 | Flexible physiological dry electrode and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042128A (en) * | 2017-12-25 | 2018-05-18 | 上海交通大学 | Electrocardiogram monitoring device and its manufacturing method |
| 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 |
| CN108771540A (en) * | 2018-06-25 | 2018-11-09 | 恩识医疗科技(上海)有限公司 | A kind of preparation method of CNT-Ag-PDMS conductive mixtures and its composite dry electrode |
| CN109171709A (en) * | 2018-07-23 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of dry electrode and preparation method thereof |
| CN109464140A (en) * | 2019-01-09 | 2019-03-15 | 浙江强脑科技有限公司 | Bioelectrical signals detection method, equipment and storage medium |
| CN109998546A (en) * | 2019-01-25 | 2019-07-12 | 芯海科技（深圳）股份有限公司 | A kind of evaluation method of human body impedance signal's mass |
| CN109875551A (en) * | 2019-02-27 | 2019-06-14 | 中山优感科技有限公司 | Small flexible dry-type electrode of a kind of contact impedance and preparation method thereof |
| CN110353678A (en) * | 2019-07-10 | 2019-10-22 | 南开大学 | A kind of waterproof electromyography signal sensor based on electric silica gel |
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