CN207693566U - A kind of brain wave acquisition sensor - Google Patents
A kind of brain wave acquisition sensor Download PDFInfo
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- CN207693566U CN207693566U CN201720709411.7U CN201720709411U CN207693566U CN 207693566 U CN207693566 U CN 207693566U CN 201720709411 U CN201720709411 U CN 201720709411U CN 207693566 U CN207693566 U CN 207693566U
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Abstract
The utility model belongs to Electroencephalo Signal Collection Technology field, more particularly to a kind of brain wave acquisition sensor, including conducting wire, sensor head cover, conductive comb, hydrogel conductive core, conduction comb top has hollow groove body, it is provided with screw thread on groove body inner wall, conduction combed screw thread and was connect with sensor head cover, groove body bottom is provided with the conducting fingers of several truncated cone-shapeds, it is provided with through-hole at conducting fingers axis, through-hole is connect with the groove body, and hydrogel conductive core is both provided with inside groove body and the through-hole；It is provided with conducting wire on sensor head cover.The contact resistance of brain scalp cuticula can be effectively reduced for a long time, under the action of ambient pressure, corresponding deformation is generated with the variation of skull shape, to ensure the close contact between scalp, make reliable contacts between hydrogel conductive core and scalp, to reach good wetting effect, the generation of motion artifacts is prevented, ensures the reliability of record EEG signals.
Description
Technical field
The utility model belongs to Electroencephalo Signal Collection Technology field more particularly to a kind of brain wave acquisition sensor.
Background technology
EEG measuring is to place electrode in head certain position, faint EEG signals is accurately obtained, through electroencephalograph
Equal brains electric equipment, by eeg signal acquisition, amplification, handles and records its waveform.EEG measuring is common medical diagnostic method,
Physiology and pathological information are can get by acquiring EEG signals.It is continuous with researchs such as medicine, Neuscience, cognitive psychologies
Deeply development, the measurement of brain wave bioelectrical signals have become increasingly prevalent.EEG signals are more and more answered
Medicine detection, clinical diagnosis and emerging one machine interface field of brain are used, such as：For detecting physiology, the psychological condition of people
And the brain area interactive mode of different brain functions；Diagnostic message can be provided for the brains state such as brainfag, headstroke, brain death；
It is electrolysed reading technology in combination with brain, completes the direct communication of brain and external equipment, realizes one machine interface system of brain.
In brain wave acquisition field, the electrode being often used at present includes two kinds of wet electrode and dry electrode, wherein traditional wet electricity
Although pole has smaller electrode noise, process of wearing needs the medical staff of profession to coat conducting resinl or electroconductive paste,
It needs to spend longer time, needs the hair and electrode that will speckle with conducting resinl to clean after measurement, operating process is cumbersome.And
And with the moisture evaporation occurred during conducting resinl or the use of electroconductive paste long-time the phenomenon that, easily occur dry and cracked or falls off
Situation, it is unstable so as to cause electrode impedance, it is unfavorable for the acquisition of the bioelectrical signals such as EEG signals.And dry electrode utilizes electronics
Conductor is directly contacted with scalp, it the advantages of be without using electrolyte such as conducting resinl, electroconductive paste or hydrogels, it is easy to use and
Storage.Although it is convenient that dry electrode is worn, it uses the electronic conductor of solid and being in direct contact for skin, fails to establish ideal
Ion channel, electrode impedance is big, and electrode/skin interface also causes interface impedance unstable without buffer layer, is readily incorporated dry
It disturbs, brings measurement noise and unstable signal, be unfavorable for the acquisition of the bioelectrical signals such as EEG signals.
The shortcomings that present apparatus is for existing EEG signals sensor technology and design, still using extend ion channel
The principle contacted to electrode, but use without coating conducting resinl, facilitate as dry electrode with using.
Utility model content
The brief overview about the utility model is given below, in order to provide certain sides about the utility model
The basic comprehension in face.It should be understood as that this general introduction is not the exhaustive general introduction about the utility model.It is not intended to
The key or pith of the utility model are determined, nor intended limitation the scope of the utility model.Its purpose be only with
Simplified form provides certain concepts, using as the preamble in greater detail discussed later.
The technical solution of the utility model：
A kind of brain wave acquisition sensor, including conducting wire, sensor head cover, conductive comb, hydrogel conductive core, the conduction
Combing top has hollow groove body, is provided with screw thread on groove body inner wall, conduction combed screw thread and connect with sensor head cover, described
Groove body bottom is provided with the conducting fingers of several truncated cone-shapeds, is provided with through-hole at conducting fingers axis, the through-hole with it is described
Groove body connects, and hydrogel conductive core is both provided with inside the groove body and the through-hole；
It is provided with conducting wire on the sensor head cover.
Further, the conductive comb outside is additionally provided with fixed seat, and fixed seat is connected by screw thread and conductive comb.
Further, the conductive comb top is additionally provided with clamping cap, and the clamping cap is connect by screw thread with fixed seat.
Further, the conducting wire is connect by screw with sensor head cover.
Further, the conductive comb is elastic conducting electric comb.
The beneficial effects of the utility model are：
1) the utility model is up to using hydrogel conductive core and brain skin contact, the moistening effect of hydrogel conductive core
8 hours or more, the contact resistance of brain scalp cuticula can be effectively reduced for a long time；
2) the conductive comb that the utility model uses, can be with skull shape under the action of ambient pressure for elastic conducting electric comb
Variation generate corresponding deformation, to ensure the close contact between scalp, prevent the generation of motion artifacts, ensure record brain
The reliability of electric signal.
3) threaded connection used between the utility model sensor head cover and conductive comb, can easily adjust hydrogel and lead
Position of the battery core in conductive comb inner cavity, it is good to reach to ensure the reliable contacts between hydrogel conductive core and scalp
Wetting effect.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of brain wave acquisition sensor；
Fig. 2 is the conducting fingers layout drawing in Fig. 1；
In figure：1- conducting wires；2- sensor head covers；3- clamping caps；4- fixed seats；5- conductions are combed；6- hydrogel conductive cores.
Specific implementation mode
Below with reference to attached drawing, the utility model is described in detail：
As shown in Figure 1, Figure 2, a kind of brain wave acquisition sensor disclosed in the present embodiment, including conducting wire 1, sensor top
Lid 2, conductive comb 5, hydrogel conductive core 6,5 tops of conduction comb have hollow groove body, screw thread are provided on groove body inner wall, conductive
Comb 5 is connect by screw thread with sensor head cover 2, and groove body bottom is provided with the conducting fingers of several truncated cone-shapeds, conducting fingers axis
Through-hole is provided at line, through-hole is connect with the groove body, and hydrogel conductive core 6 is both provided with inside groove body and the through-hole；
Conducting wire 1 is provided on sensor head cover 2.
Specifically, 5 outside of conductive comb is additionally provided with fixed seat 4, and fixed seat 4 is connect by screw thread with conduction comb 5, by solid
4 connection electrode cap of reservation.
Specifically, 5 top of conductive comb is additionally provided with clamping cap 3, and clamping cap 3 is connect by screw thread with fixed seat 4.
Specifically, conducting wire 1 is connect by screw with sensor head cover 2.
Specifically, conductive comb 5 is elastic conducting electric comb, and corresponding deformation can be generated with the shape of skull.
The course of work of the present apparatus is：
Brain wave acquisition sensor is fixed to by fixed seat 5 on electrode cap, it, can will be by leading by adjusting clamping cap 3
Line 1, sensor head cover 2, the conductive brain wave acquisition sensor compression combed 5, hydrogel conductive core 6 and constituted, conduction comb 5, which uses, to be had
The conductive silicon rubber of elasticity is made, and the elastic conducting electric comb of conductive energy is pressed to scalp surface under pressure, is led
Electric comb 5 can generate corresponding deformation with the variation of skull shape, form close skin contact, meanwhile, the water that conduction comb 5 includes
Gel conductive core 6 is also in close contact with skin, and hydrogel conductive core 6 has prolonged moistening effect, can be to the angle of scalp
Matter layer is soaked, and to reduce the impedance of scalp cuticula, just forms ion channel, brain between scalp and electrode sensor in this way
The biopotential that electric wave generates is connected to by the conducting wire 1 connected on sensor head cover 2 on external brain wave acquisition device, for brain
Electroanalysis is used.
Above example is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (5)
1. a kind of brain wave acquisition sensor, which is characterized in that including conducting wire (1), sensor head cover (2), conductive comb (5), water
Gel conductive core (6), described conductive comb (5) top have hollow groove body, screw thread, conduction comb (5) are provided on groove body inner wall
It is connect with sensor head cover (2) by screw thread, the groove body bottom is provided with the conducting fingers of several truncated cone-shapeds, conducting fingers
Through-hole is provided at axis, the through-hole is connect with the groove body, and hydrogel is both provided with inside the groove body and the through-hole
Conductive core (6)；
It is provided with conducting wire (1) on the sensor head cover (2).
2. a kind of brain wave acquisition sensor according to claim 1, which is characterized in that on the outside of the conductive comb (5) also
It is provided with fixed seat (4), fixed seat (4) is connect by screw thread with conduction comb (5).
3. a kind of brain wave acquisition sensor according to claim 2, which is characterized in that above the conductive comb (5) also
It is provided with clamping cap (3), the clamping cap (3) is connect by screw thread with fixed seat (4).
4. a kind of brain wave acquisition sensor according to claim 3, which is characterized in that the conducting wire (1) passes through screw
It is connect with sensor head cover (2).
5. a kind of brain wave acquisition sensor according to claim 4, which is characterized in that the conductive comb (5) is elasticity
Conduction comb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709411.7U CN207693566U (en) | 2017-06-16 | 2017-06-16 | A kind of brain wave acquisition sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709411.7U CN207693566U (en) | 2017-06-16 | 2017-06-16 | A kind of brain wave acquisition sensor |
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| Publication Number | Publication Date |
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| CN207693566U true CN207693566U (en) | 2018-08-07 |
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| CN201720709411.7U Active CN207693566U (en) | 2017-06-16 | 2017-06-16 | A kind of brain wave acquisition sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111067515A (en) * | 2019-12-11 | 2020-04-28 | 中国人民解放军军事科学院军事医学研究院 | Intelligent airbag helmet system based on closed-loop control technology |
| CN111419228A (en) * | 2020-04-17 | 2020-07-17 | 上海交通大学 | Claw-shaped electroencephalogram electrode device based on hydrogel |
| WO2020147556A1 (en) * | 2019-01-15 | 2020-07-23 | 浙江强脑科技有限公司 | Hydrogel reservoir electroencephalogram electrode |
| CN112450938A (en) * | 2020-11-25 | 2021-03-09 | 上海交通大学 | Hydrogel electrode for long-term electroencephalogram acquisition and preparation method thereof |
-
2017
- 2017-06-16 CN CN201720709411.7U patent/CN207693566U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147556A1 (en) * | 2019-01-15 | 2020-07-23 | 浙江强脑科技有限公司 | Hydrogel reservoir electroencephalogram electrode |
| CN111067515A (en) * | 2019-12-11 | 2020-04-28 | 中国人民解放军军事科学院军事医学研究院 | Intelligent airbag helmet system based on closed-loop control technology |
| CN111067515B (en) * | 2019-12-11 | 2022-03-29 | 中国人民解放军军事科学院军事医学研究院 | Intelligent airbag helmet system based on closed-loop control technology |
| CN111419228A (en) * | 2020-04-17 | 2020-07-17 | 上海交通大学 | Claw-shaped electroencephalogram electrode device based on hydrogel |
| CN111419228B (en) * | 2020-04-17 | 2021-12-21 | 上海交通大学 | Claw-shaped electroencephalogram electrode device based on hydrogel |
| CN112450938A (en) * | 2020-11-25 | 2021-03-09 | 上海交通大学 | Hydrogel electrode for long-term electroencephalogram acquisition and preparation method thereof |
| CN112450938B (en) * | 2020-11-25 | 2022-04-26 | 上海交通大学 | Hydrogel electrode for long-term electroencephalogram acquisition and preparation method thereof |
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