CN216439210U - Electroencephalogram acquisition device - Google Patents
Electroencephalogram acquisition device Download PDFInfo
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- CN216439210U CN216439210U CN202121274269.0U CN202121274269U CN216439210U CN 216439210 U CN216439210 U CN 216439210U CN 202121274269 U CN202121274269 U CN 202121274269U CN 216439210 U CN216439210 U CN 216439210U
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Abstract
The utility model discloses an electroencephalogram acquisition device, which comprises: electrode holder, salt solution electrode, wherein: the brine electrode includes: the positioning seat and the shell are sealed to form a cavity; the guide pipe is fixed on the positioning seat and protrudes out of the positioning seat, and one end of the guide pipe is communicated with the cavity; the conductive electrode is fixed on the shell and protrudes out of the shell, and one end of the conductive electrode extends into the cavity; the conductive electrode is made of elastic water-absorbing material; the brine electrode is detachably assembled on the electrode seat through the positioning seat and is communicated with the interior of the electrode seat and the cavity through the guide pipe; conductive saline is provided in the cavity. The brine is used as a conductive medium to collect electroencephalogram signals, and the brine drops permeate into the scalp to collect the electroencephalogram signals, so that the method has good signal collection sensitivity, does not need to clean the electrodes and the scalp, and is convenient to use.
Description
Technical Field
The utility model relates to the technical field of electroencephalogram signal acquisition, in particular to an electroencephalogram acquisition device.
Background
With the development of medical science and technology, brain research becomes an important research direction of human life science. The electroencephalogram signals are not only important reference bases for diagnosing and treating mental diseases, but also the most important information sources for cognitive science research in recent years.
At present, the electroencephalogram signal acquisition mode mainly comprises a wet electrode and a dry electrode.
Wet electrode: the wet electrode needs to be injected with conductive paste in the using process, and signal acquisition is carried out through the medium of the conductive paste. The conductive paste is a thick adhesive and attached to the hair and scalp, which causes inconvenience to the test patient. After the test, the hair must be cleaned, and the wet electrode and the electroencephalogram cap also need to be cleaned, so that much trouble and unnecessary work are brought to operators and users.
Dry electrode: the dry electrode is coated with silver chloride conductor on its surface for collecting brain electric signal. The defect of inconvenient operation of a wet electrode is avoided, but the signal acquisition is not as good as that of wet electrode. For better contact with the scalp, the dry electrode currently used in the market is designed with a multi-head needle tip, and the needle tip is in contact with the scalp, so that a plurality of needle prick pain feelings are brought to a tester.
How to provide an electroencephalogram signal acquisition device which is more convenient to use under the condition of more sensitive signal acquisition is a technical problem to be solved by the utility model.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electroencephalogram acquisition device, which realizes that the acquisition is sensitive and the use is convenient.
The application provides an electroencephalogram acquisition device, including: electrode holder, salt solution electrode, wherein:
the brine electrode includes: the positioning seat and the shell are sealed to form a cavity; the guide pipe is fixed on the positioning seat and protrudes out of the positioning seat, and one end of the guide pipe is communicated with the cavity; the conductive electrode is fixed on the shell and protrudes out of the shell, and one end of the conductive electrode extends into the cavity; the conductive electrode is made of elastic water-absorbing material;
the saline electrode is detachably assembled on the electrode seat through the positioning seat and is communicated with the inside of the electrode seat and the cavity through the guide pipe;
the cavity has a conductive saline therein.
From above, when this application uses, the salt solution slowly pressurizes the inner chamber of carrying to the salt solution electrode through the electrode base to slowly ooze by the conducting electrode. The utility model provides an utilize salt solution to gather brain electrical signal as conducting medium. Convenient and simple operation, sensitivity of signal acquisition and no noise. The conducting electrode is designed by adopting a flexible material, can seep saline water drops onto the scalp, has good contact with the skin of the head, and has good brain wave electric signal acquisition effect. Brings comfortable feeling to the testee, does not need to clean the electrodes and the scalp, and does not have the feeling of pain caused by the acupuncture.
Optionally, the edge of the positioning seat facing the shell side is provided with an outer convex part; the edge of the shell is provided with an inner convex part, and the positioning seat and the shell are assembled to form the cavity through the outer convex part and the inner convex part.
Optionally, one surface of the electrode holder for assembling the brine electrode is provided with a concave part adapted to the positioning seat, the concave part is provided with a flexible hole adapted to the top part of the positioning seat over against the top part of the positioning seat, and the flexible hole is used for clamping the top part of the positioning seat to assemble the brine electrode.
From the top, the two parts realize the detachable assembly, are convenient for maintain, change parts.
Optionally, the conductive electrode is a hard sponge.
Therefore, the hard sponge can not only keep a certain shape of the conductive electrode, but also permeate saline water.
Drawings
FIG. 1 is a schematic view of an unassembled structure of an electrode holder and a saline motor of an electroencephalogram acquisition device;
FIG. 2 is a schematic diagram of an electroencephalogram acquisition device after an electrode base and a saline motor are assembled;
fig. 3 is an enlarged schematic view of a cross-sectional view of a brain saline electrode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an electroencephalogram acquisition apparatus of the present application includes: electrode holder 1, salt water electrode 2, wherein:
the brine electrode 2 is composed of a conduit 21, a positioning seat 22, a shell 23, a cavity 24 formed by the positioning seat 22 and the shell 23 in a sealing mode, and a conductive electrode 25. The positioning seat 22 and the shell 23 are made of anti-corrosion materials or coatings.
The conduit 21 is responsible for connecting the electrode holder 1 and conducting the saline inside the electrode holder 1 and the cavity 24 of the saline electrode 2, and the saline is used as a conductive medium to form a circuit for transmitting an electric signal.
The positioning seat 22 is hemispherical, the conduit 21 is assembled on the top (i.e. the end facing the positioning seat 22), the housing 23 is in a shape of a convex circular truncated cone, and the outward protruding part of the edge of the bottom (i.e. the end far away from the positioning seat 22) of the positioning seat 22 is clamped by the inward convex edge of the corresponding edge of the housing 23, so as to form the cavity 24.
One end of the conductive electrode 25 extends into the shell 23, is in contact with the saline in the cavity 24, and can be fixed at the center of the shell 23 far away from the positioning seat 22, and the other end of the conductive electrode 25 is a round end and is used for contacting the scalp of the testee. The conductive electrode 25 is made of elastic water-absorbing material, such as hard sponge, which can keep a certain shape and permeate saline water, so that the head of the testee can feel comfortable and the saline water can be conducted to transmit brain wave electric signals.
The electrode holder 1 is used for assembling the brine electrode 2, wherein the electrode holder 1 is opposite to one surface of the brine electrode 2, namely, one surface for assembling the brine electrode 2, and is provided with a concave part adapted to the positioning seat 22, and the concave part is opposite to the top of the positioning seat 22 and is provided with a hole adapted to the flexibility (such as silica gel material and rubber material) of the top so as to clamp the top of the positioning seat 22, and the electrode holder 1 and the brine electrode 2 are in a sealed state.
In practical application, a plurality of electroencephalogram acquisition devices are placed on the head of a tested person to acquire brain wave activity, and each electroencephalogram acquisition device is fixed by a hemispherical structure slightly larger than the head of the person, so that the conductive electrode 25 of each electroencephalogram acquisition device can well contact the head. The saline is slowly pressurized and conveyed to each electroencephalogram acquisition device through the catheter, and the saline seeps out of the round-head end of the conductive electrode 25, so that electroencephalogram signals of the scalp are conducted to corresponding acquisition equipment through the saline.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. An electroencephalogram acquisition device, comprising: electrode holder, salt solution electrode, wherein:
the brine electrode includes: the positioning seat and the shell are sealed to form a cavity; the guide pipe is fixed on the positioning seat and protrudes out of the positioning seat, and one end of the guide pipe is communicated with the cavity; the conductive electrode is fixed on the shell and protrudes out of the shell, and one end of the conductive electrode extends into the cavity; the conductive electrode is made of elastic water-absorbing material;
the saline electrode is detachably assembled on the electrode seat through the positioning seat and is communicated with the interior of the electrode seat and the cavity through the guide pipe;
the cavity has a conductive saline therein.
2. The brain electricity collection device according to claim 1, wherein the edge of the positioning seat facing the shell side is provided with an outward convex part; the edge of the shell is provided with an inner convex part, and the positioning seat and the shell are assembled to form the cavity through the outer convex part and the inner convex part.
3. The electroencephalograph acquisition device according to claim 1 or 2, wherein one surface of the electrode holder for assembling the saline electrode is provided with a concave part matched with the positioning seat, the concave part is opposite to the top of the positioning seat and is provided with a flexible hole matched with the top, and the flexible hole is used for clamping the top of the positioning seat to assemble the saline electrode.
4. The electroencephalograph acquisition device according to claim 1, wherein the conductive electrode is a hard sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121274269.0U CN216439210U (en) | 2021-06-08 | 2021-06-08 | Electroencephalogram acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121274269.0U CN216439210U (en) | 2021-06-08 | 2021-06-08 | Electroencephalogram acquisition device |
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| Publication Number | Publication Date |
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| CN216439210U true CN216439210U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121274269.0U Active CN216439210U (en) | 2021-06-08 | 2021-06-08 | Electroencephalogram acquisition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916920A (en) * | 2022-07-18 | 2022-08-19 | 中国科学院自动化研究所 | Self-adaptive rotary adjusting contact and wearable brain function detection device |
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2021
- 2021-06-08 CN CN202121274269.0U patent/CN216439210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916920A (en) * | 2022-07-18 | 2022-08-19 | 中国科学院自动化研究所 | Self-adaptive rotary adjusting contact and wearable brain function detection device |
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