CN212755669U

CN212755669U - Comb-shaped electroencephalogram dry electrode wearing device

Info

Publication number: CN212755669U
Application number: CN202022196035.0U
Authority: CN
Inventors: 吴晓婷; 裴为华; 王毅军
Original assignee: Jiangsu Jicui Brain Machine Integration Intelligent Technology Research Institute Co Ltd
Current assignee: Jiangsu Jicui Brain Machine Integration Intelligent Technology Research Institute Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-03-23
Anticipated expiration: 2030-09-29

Abstract

The utility model provides a device is dressed to dry electrode of pectination brain electricity, including the head hoop, device is dressed to dry electrode of pectination brain electricity still is fixed in the fixed plate on the head hoop and is fixed in a plurality of electrode structure on the fixed plate including sliding, electrode structure includes the contact site of pectination. The comb-shaped electrode is adopted in the utility model, the comb-like structure is easier to comb the hair, thus avoiding the hair from being pressed between the electrode and the scalp to cause electric isolation, ensuring the stable contact between the electrode and the scalp and providing intuitive impedance adjustment; secondly, the rail structure and the rail fixing plate provide a sliding track for combing hair with the comb-shaped electrode, the spring assembling structure can realize stable placement of the electrode, and the 3D fixing plate is scanned and printed according to the shape of the tested skull, so that the electrode and the scalp have better fitting performance.

Description

Comb-shaped electroencephalogram dry electrode wearing device

Technical Field

The utility model belongs to the technical field of artificial intelligence, especially, relate to a device is dressed to pectination brain electricity dry electrode.

Background

Non-invasive electroencephalogram signal acquisition generally requires the cooperation of an electrode and an electrode cap. The electrode is mounted on an electrode cap for signal acquisition of a plurality of independent channels, and the electrode cap gives an electrode support so as to be stably attached to the head. The common collection mode is that a barrel-shaped or bowl-shaped wet electrode is matched with an elastic fabric head, and when the collection device is used, conductive paste is required to be injected into a reserved pore of the wet electrode to wet the hair, so that electrical isolation is eliminated, the wet electrode and the scalp form stable electrical connection, and lower electrode/tissue interface impedance is provided. Nowadays, signals acquired by the electrode are still the gold standard for acquiring electroencephalogram signals. However, the wet electrode has many inconveniences and disadvantages when in use, for example, the wet electrode needs to be injected with the conductive paste one by one, which wastes time and labor; after the hair is used, a large amount of conductive paste is left among hairs and needs to be cleaned in time; moisture in the conductive paste evaporates over time, raising the interfacial impedance which is detrimental to long-term signal monitoring.

In order to solve the problems of the wet electrode, the dry electrode sensing technology is applied. The dry electrode does not need to use conductive paste, is worn and used, does not need to be cleaned after being used, and is a key technology in the application of brain-computer interfaces. The existing dry electrodes are columnar or needle-shaped multi-pin dry electrodes, and the design aims to ensure that the multi-pin dry electrodes can penetrate through hair to block direct contact with scalp so as to eliminate electrical isolation caused by the hair. The size design of the column base of the electrode is very critical, the diameter of the column base is too large, hair is easily pressed between the electrode and the scalp, and the diameter of the column base is too small, so that the column base is easy to penetrate through the hair to block, discomfort is brought to a tested person, and the long-time practical application is not facilitated. In addition, when the dry electrode is applied to long hair or a large amount of hair is tested, the electrode pins are difficult to be completely pulled out to contact the scalp, and the annularly arranged pin electrodes are easy to entangle the hair during rotation adjustment, so that poor contact is caused. Other studies have designed the cylindrical electrode as a spring structure, which, while solving the comfort problem, introduces additional noise.

In view of the above problems of the dry electrode, it is urgently needed to develop a collecting electrode and a head-wearing system which are easy, comfortable, convenient and fast to wear and can stably collect high-quality electroencephalogram signals for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pectination brain electricity is electrode dressed device futilely that the travelling comfort is better, contact nature is better.

In order to realize the above-mentioned purpose, the utility model provides a device is dressed to dry electrode of pectination brain electricity, including the headband, device is dressed to dry electrode of pectination brain electricity still including being fixed in the fixed plate on the headband and being fixed in a plurality of electrode structure on the fixed plate, electrode structure includes the contact site of pectination.

As a further improvement of the present invention, the electrode structure comprises a slide rail fixed on the fixing plate and an electrode.

As a further improvement of the utility model, the electrode includes the basal portion, from the basal portion protrusion and can follow the gliding bulge of slide rail, the contact site extends the formation after bending from the basal portion upper end.

As a further improvement of the utility model, the contact part comprises a plurality of extension arms which are formed by bending the upper end of the base part and then extending, and the extension arms are arranged in a row at intervals.

As a further improvement of the present invention, the extension arm includes a connecting rod connected to the base and a contact point disposed at the end of the connecting rod.

As a further improvement of the utility model, the contact part is formed after being bent obliquely downwards from the upper end of the base part.

As a further improvement of the present invention, the protrusion includes a hollow middle channel, and the electrode structure further includes a hollow screw fixedly butted with the middle channel.

As a further improvement of the utility model, be provided with the electric connection socket in the hollow screw, the socket is the copper socket.

As a further improvement of the present invention, the electrode further comprises a silver paste conductive layer uniformly coated on the surface of the electrode and formed after drying.

As a further improvement of the present invention, a plurality of mounting holes for mounting the slide rail are provided on the fixing plate.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses well adoption pectination electrode, class comb structure change comb head hair and avoid the hair to be pressed and cause the electric isolation between electrode and scalp, guarantee the stable contact of electrode and scalp, provide audio-visual impedance and adjust.

Secondly, the rail structure and the rail fixing plate provide a sliding track for combing hair with the comb-shaped electrode, the spring assembling structure can realize stable placement of the electrode, and the 3D fixing plate is scanned and printed according to the shape of the tested skull, so that the electrode and the scalp have better fitting performance.

In addition, the two-dimensional adjustable head band can adapt to different tested head circumferences, the dry electrode and the head wearing system can be worn and used immediately, convenience and rapidness are achieved, the disadvantage of a wet electrode is avoided, and daily life application of a brain-computer interface can be achieved

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of the comb-shaped electroencephalogram dry electrode wearing device of the utility model;

FIG. 2 is a schematic view of the electrode structure of the present invention;

fig. 3 is the schematic view of the fixing plate and the slide rail assembly of the present invention.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.

The comb-shaped electroencephalogram dry electrode wearing device comprises a head band 1, a fixing plate 2 fixed on the head band 1 and a plurality of electrode structures 3 fixed on the fixing plate 2 are further included, and the electrode structures 3 comprise comb-shaped contact parts 4.

The electrode structure 3 comprises a slide rail 5 fixed on the fixing plate 2 and an electrode 31, and the fixing plate 2 is provided with a plurality of mounting holes 21 for mounting the slide rail 5. In a specific assembling process, screws and 60-degree springs can be used for assembling, and the sliding rail is installed on the fixing plate. In this embodiment, the rail of the slide rail may be closed at both ends, or may be wide at the bottom and narrow at the top, so that it is ensured that the electrode will not be easily derailed or dislocated during the sliding process within the rail.

The electrode 31 includes a base 32 and a protrusion 33 protruding from the base 32 and capable of sliding along a slide rail, and the contact portion 4 is formed by bending and extending from the upper end of the base 32. In a specific use process, for the best use effect, the contact part is formed by bending the upper end of the base part obliquely downwards.

The contact portion 4 includes a plurality of extension arms 34 formed by bending and extending from the upper end of the base portion 32, and the plurality of extension arms 34 are arranged in a row at intervals. The extension arm 34 includes a connecting rod 35 connected to the base and a contact point 36 provided at the end of the connecting rod 35.

The projection 33 comprises a hollow central channel 37 and the electrode structure further comprises a cannulated screw 38 in fixed abutment with the central channel 37. An electrical connection socket 39 is arranged in the hollow screw 38, and the socket is a copper socket. The electrode comprises a silver paste conducting layer which is uniformly coated on the surface of the electrode and formed after drying. In the process of electrode assembly, the bulge of each electrode is firstly arranged on the slide rail, and then the hollow screw is screwed into the middle channel of the bulge, so that the electrode cannot slide out of the slide rail in the process of moving in the slide rail.

In this embodiment, the whole usable 3D printing technique resin material preparation shaping of electrode, then evenly coat the silver thick liquid on the electrode surface and dry, form the conducting layer, whole electrode all possesses good electric conductive property like this, then owing to installed the copper socket in the empty screw of twist in the intermediate passage, only need insert the copper socket with test conductive joint like this within, can realize effective and reliable electric connection, established complete dry electrode test line.

The utility model provides an in-process that device was dressed to dry electrode of pectination brain electricity is using, pectination electrode can be according to different person's of experiencing head circumference, hair etc. through combing on the scalp, can be relaxed find with the effectual contact position of scalp, eliminate the electric isolation that the hair caused, the process of sending out is combed to the simulation comb, the electrode can be combed first hair direct contact scalp, has avoided traditional dry electrode to be difficult to dial out the hair or twine the problem of hank hair when long hair is tried to use.

It should be understood that although the terms first, second, third, etc. may be used in one or more embodiments of the present description to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of one or more embodiments herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

The above description is only for the purpose of illustrating the preferred embodiments of the one or more embodiments of the present disclosure, and is not intended to limit the scope of the one or more embodiments of the present disclosure, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the one or more embodiments of the present disclosure should be included in the scope of the one or more embodiments of the present disclosure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a device is dressed to pectination brain electricity dry electrode, includes the head hoop, its characterized in that: the comb-shaped electroencephalogram dry electrode wearing device further comprises a fixing plate fixed on the head band and a plurality of electrode structures fixed on the fixing plate, and each electrode structure comprises a comb-shaped contact part.

2. The comb-shaped electroencephalogram dry electrode wearing device according to claim 1, which is characterized in that: the electrode structure comprises a slide rail fixed on the fixing plate and an electrode.

3. The comb-shaped electroencephalogram dry electrode wearing device according to claim 2, which is characterized in that: the electrode comprises a base and a protruding part protruding from the base and capable of sliding along the sliding rail, and the contact part is formed by extending after being bent from the upper end of the base.

4. The comb-shaped electroencephalogram dry electrode wearing device according to claim 3, which is characterized in that: the contact part comprises a plurality of extension arms which are formed by bending and extending from the upper end of the base part, and the extension arms are arranged in a row at intervals.

5. The comb-shaped electroencephalogram dry electrode wearing device according to claim 4, which is characterized in that: the extension arm includes a connecting rod connected to the base and a contact point disposed at an end of the connecting rod.

6. The comb-shaped electroencephalogram dry electrode wearing device according to any one of claims 2 to 5, which is characterized in that: the contact part is formed by bending the upper end of the base part obliquely downwards.

7. The comb-shaped electroencephalogram dry electrode wearing device according to claim 3, which is characterized in that: the projection includes a hollow central channel, and the electrode structure further includes a cannulated screw in fixed abutment with the central channel.

8. The comb-shaped electroencephalogram dry electrode wearing device according to claim 7, which is characterized in that: an electric connection socket is arranged in the hollow screw, and the socket is a copper socket.

9. The comb-shaped electroencephalogram dry electrode wearing device according to claim 2, which is characterized in that: the electrode comprises a silver paste conducting layer which is uniformly coated on the surface of the electrode and formed after drying.

10. The comb-shaped electroencephalogram dry electrode wearing device according to claim 2, which is characterized in that: the fixed plate is provided with a plurality of mounting holes for mounting the slide rails.