EEG cap

Abstract

The present invention discloses an electroencephalogram cap, comprising a cap body and a plurality of electrode assemblies. The cap body is provided with a plurality of injection ports. Each electrode assembly comprises a mounting shell arranged on the cap body, an electrode arranged in the mounting shell, and the mounting shell is provided with a first channel running through it, the mounting shell has a first opening end and a second opening end connected to the first channel, the electrode is located on the side where the second opening end of the mounting shell is located, and the electrode is provided with a second through hole connected to the first channel. The electroencephalogram cap has high gluing efficiency and is easy to clean to ensure the cleanliness of the cap body.

Description

Technical Field

[0001] The invention relates to the field of electroencephalogram (EEG) measurement, and in particular to an EEG cap. Background Art

[0002] Electroencephalogram (EEG) is a graph obtained by amplifying and recording the spontaneous biopotential of the cerebral cortex from the scalp through precise instruments. It is the spontaneous and rhythmic electrical activity of brain cell groups recorded by electrodes. The collected brain waves can not only be used for basic theoretical research in brain science, but also can play a role in neurorehabilitation based on motor imagery in the field of stroke rehabilitation. As the main equipment for collecting brain waves, the EEG cap is related to the collection performance of cortical EEG signals, which will directly affect the processing and analysis of data.

[0003] However, traditional EEG caps require wearing a velvet-type breathable cap, and in order to obtain better signal quality, the brain electrodes need to be injected with conductive glue. However, the efficiency of gluing the brain electrodes is low, and there is a risk of conductive glue overflowing, and the cap is difficult to clean. Summary of the invention

[0004] The purpose of the present invention is to provide an EEG cap, which has high gluing efficiency and is easy to clean to ensure the cleanliness of the cap body.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides an electroencephalogram cap, comprising:

[0006] A cap body, wherein a plurality of injection ports are formed on the cap body; and

[0007] A plurality of electrode assemblies, each of the electrode assemblies comprising: a mounting shell disposed on the cap body, an electrode disposed in the mounting shell, wherein the mounting shell is provided with a first passage running through it, the mounting shell has a first opening end and a second opening end connected to the first passage, the electrode is located on the side of the mounting shell where the second opening end is located, and the electrode is provided with a second through hole connected to the first passage.

[0008] Compared with the prior art, the implementation manner of the present invention is that after the EEG cap is worn, conductive glue is injected into the injection port, which greatly improves the gluing efficiency. The electrode is arranged in the mounting shell, and the conductive glue enters from the injection port through the second through hole and flows into the first channel of the mounting shell without overflowing to cause contamination of the cap body. Therefore, the EEG cap of the present invention has high gluing efficiency and can ensure the cleanliness of the cap body.

[0009] In one embodiment, the mounting shell comprises: a secondary shell detachably connected to the cap body, and a main shell cooperating with the secondary shell to clamp and position the electrode; the secondary shell is provided with a first through hole extending in the same direction as the second through hole and connected thereto, and the main shell is provided with a fourth through hole extending in the same direction as the second through hole and connected thereto;

[0010] Among them, the auxiliary shell has a first port and a second port along the extension direction of the first through hole, the first port is located on the side where the first opening end is located, and the second port is located on the side where the second opening end is located; the side where the first port of the auxiliary shell is located is inserted into the cap body and docked with the injection port.

[0011] In one embodiment, each of the electrode assemblies further includes: a gasket clamped between the electrode and the auxiliary shell; a third through hole extending in the same direction as and connected to the second through hole is opened on the gasket; and the main shell at least partially covers and supports the side of the electrode facing away from the auxiliary shell.

[0012] In one embodiment, the cap body further includes: an outer shell having the injection port, and an inner shell arranged on the inner surface of the outer shell, and each of the electrode assemblies penetrates the inner shell and is detachably connected to the inner shell.

[0013] In one embodiment, the auxiliary shell is at least partially exposed outside the main shell along the extension direction of the second through hole, and a limit member is provided on the outer side wall of the auxiliary shell exposed outside the main shell, and the limit member is separated from the auxiliary shell; and the limit member is operably located between the outer shell and the inner shell, and is against a side of the inner shell facing the outer shell, and the main shell is located on a side of the inner shell facing away from the outer shell.

[0014] In one embodiment, the outer shell has a recessed area around the periphery of the injection port on one side facing the inner shell; the first port of the auxiliary shell is surrounded by a boss protruding toward the extension direction of the first through hole; the boss is operably inserted into the recessed area.

[0015] In one embodiment, the electrode assembly further comprises: a soft plastic shell sleeved outside the mounting shell, the soft plastic shell having a second channel extending in the direction of the second through hole;

[0016] At least a portion of the soft plastic shell extends in a direction away from the cap body to form a functional portion, and an end of the functional portion away from the cap body is provided with an opening communicated with the second channel.

[0017] In one embodiment, the soft plastic shell at least partially covers and abuts against a side of the mounting shell facing away from the cap body.

[0018] In one embodiment, the soft plastic shell has a covering portion covering the mounting shell, a connecting portion connected to the covering portion, and the functional portion is connected to the connecting portion;

[0019] The second channel passes through the covering portion, the connecting portion and the functional portion, and the inner diameter of the connecting portion is smaller than the inner diameters of the covering portion and the functional portion, and the outer diameter of the connecting portion is smaller than the outer diameters of the covering portion and the functional portion.

[0020] In one embodiment, the cap body includes: an outer shell having the injection port, and an inner shell detachably connected to the inner surface of the outer shell, and the electrode assembly is detachably connected to the inner shell.

[0021] In one embodiment, the cap body is an annular structure with an opening at the top.

[0022] In one embodiment, the cap body further includes: an outer shell having the injection port, and an inner shell arranged on the inner surface of the outer shell, each of the electrode assemblies passes through the inner shell and is connected to the inner shell; the outer shell is an integrated rigid shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 is a schematic diagram of the structure of an EEG cap according to an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of an electrode assembly on an electroencephalogram cap according to an embodiment of the present invention;

[0026] Figure 3 is an exploded view of an EEG cap according to an embodiment of the present invention;

[0027] Figure 4 is an exploded view of an electrode assembly according to an embodiment of the present invention;

[0028] Figure 5 is a cross-sectional view of an exploded view of an electrode assembly according to an embodiment of the present invention;

[0029] Figure 6 is a schematic structural diagram of a soft plastic shell according to an embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of an EEG cap according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1. EEG cap; 10. cap body; 11. injection port; 12. outer shell; 121. recessed area; 13. inner shell; 14. soft rubber pad; 20. electrode assembly; 21. mounting shell; 211. first channel; 212. auxiliary shell; 2121. first through hole; 2122. stopper; 2123. boss; 2124. first port; 2125. second port; 213. main shell; 2131. fourth through hole; 214. first opening end; 215. second opening end; 22. electrode; 221. second through hole; 23. gasket; 231. third through hole; 24. soft rubber shell; 241. second channel; 242. functional part; 243. opening; 244. covering part; 245. connecting part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.

[0034] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0035] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0036] The following will be described in detail with reference to the accompanying drawings to provide a clearer understanding of the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0037] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0038] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0039] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0040] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0041] like Figure 1 As shown, the present invention provides an electroencephalogram cap 1, comprising a cap body 10 and a plurality of electrode assemblies 20. Figure 2 As described above, a plurality of injection ports 11 are provided on the cap body 10. Each electrode assembly 20 includes a mounting shell 21 disposed on the cap body 10, an electrode 22 disposed in the mounting shell 21, and the mounting shell 21 is provided with a first passage 211 penetrating therethrough, the mounting shell 21 has a first opening end 214 and a second opening end 215 connected to the first passage 211, the electrode 22 is located on the side where the second opening end 215 of the mounting shell 21 is located, and the electrode 22 is provided with a second through hole 221 connected to the first passage 211.

[0042] Compared with the prior art, the EEG cap 1 of the present invention is able to greatly improve the gluing efficiency by injecting conductive glue into the injection port 11 after the EEG cap 1 is worn, and the electrode 22 is arranged in the mounting shell 21. The conductive glue enters from the injection port 11 through the second through hole 221 and flows into the first channel 211 of the mounting shell 21 without overflowing to cause contamination of the cap body 10. Therefore, the EEG cap 1 of the present invention has high gluing efficiency and can ensure the cleanliness of the cap body 10.

[0043] Preferably, if Figure 2 Combined with Figure 4 and Figure 5As shown, the mounting shell 21 includes a sub-shell 212 detachably connected to the cap body 10, and a main shell 213 that cooperates with the sub-shell 212 to clamp and position the electrode 22. The sub-shell 212 is provided with a first through hole 2121 that is in the same extension direction as the second through hole 221 and is in communication with it, and the main shell 213 is provided with a fourth through hole 2131 that is in the same extension direction as the second through hole 221 and is in communication with it. Among them, the sub-shell 212 has a first port 2124 and a second port 2125 along the extension direction of the first through hole 2121, the first port 2124 is located on the side where the first opening end 214 is located, and the second port 2125 is located on the side where the second opening end 215 is located, and the side where the first port 2124 of the sub-shell 212 is located is inserted into the cap body 10 and docked with the injection port 11. This arrangement allows that when the EEG cap 1 is used, only the electrode assembly 20 needs to be cleaned, that is, the conductive glue remaining in the first channel 211 is wiped, and the amount of cleaning work is small. Those skilled in the art can make arrangements according to actual needs. It should be understood that the auxiliary shell 212 may also be fixedly connected to the cap body 10 without departing from the scope of the present invention.

[0044] Specifically, Figure 2 Combination Figure 5 As shown, each electrode assembly 20 further includes a gasket 23 clamped between the electrode 22 and the auxiliary housing 212, and a third through hole 231 extending in the same direction as and connected to the second through hole 221 is provided on the gasket 23, and the main housing 213 partially covers and abuts against the side of the electrode 22 away from the auxiliary housing 212. The above arrangement can ensure the sealing of the EEG cap 1, prevent the conductive glue flowing into the electrode assembly 20 from flowing into the cap body 10 through the gap between the electrode 22 and the auxiliary housing 212 and contaminating the cap body 10, and can keep the cap body 10 clean. Those skilled in the art can make arrangements according to actual needs.

[0045] The gasket 23 can be configured as a valve sealing ring, which can not only seal the gap between the electrode 22 and the sub-shell 212, but also when a glue needle is used to extend into the first channel 211 from the injection port 11, the third through hole 231 of the valve sealing ring can be passively opened when the glue needle is inserted, and the conductive glue will not flow back from the third through hole 231 to the first through hole 2121, thereby preventing contamination of the cap body 10 and facilitating cleaning.

[0046] In addition, if Figure 3As shown, the cap body 10 also includes an outer shell 12 with a filling port 11, and an inner shell 13 arranged on the inner surface of the outer shell 12, and each electrode assembly 20 passes through the inner shell 13 and is detachably connected to the inner shell 13. In the assembly process of the EEG cap 1, this arrangement can first connect the electrode assembly 20 to the inner shell 13, and then fix the outer shell 12 to the inner shell 13, which simplifies the assembly process. Those skilled in the art can make arrangements according to actual needs. It should be understood that the inner shell 13 can also be arranged to be detachably connected to the inner surface of the outer shell 12.

[0047] Furthermore, if Figure 2 As shown, the auxiliary housing 212 is partially exposed outside the main housing 213 along the extension direction of the second through hole 221, and the auxiliary housing 212 is exposed outside the main housing 213. There is a stopper 2122 on the outer wall, which is separated from the auxiliary housing 212, and the stopper 2122 is operably located between the outer housing 12 and the inner housing 13, and is against the side of the inner housing 13 facing the outer housing 12, and the main housing 213 is located on the side of the inner housing 13 away from the outer housing 12. This arrangement enables the auxiliary housing 212 to stably abut against the inner housing 13, that is, the electrode assembly is installed on the inner housing 13, and the inner housing is inside the EEG cap, so there is no need to consider the impact of the appearance too much, and the difficulty of mold opening is relatively low. If the electrode assembly 20 is not arranged on the inner housing but is directly installed on the outer housing 12, the outer housing is used as an outer layer structure, and in the design of the outer housing 12, both the mounting structure and the appearance and integrity of the outer housing must not be damaged, and the difficulty of mold opening of the outer housing is relatively high. Therefore, the inner shell is provided to install the electrode assembly, so that the EEG cap is more suitable for existing use requirements and has low processing difficulty. Those skilled in the art can make the configuration according to actual needs.

[0048] In addition, if Figure 2 As shown, the outer shell 12 has a concave area 121 around the outer periphery of the injection port 11 on one side facing the inner shell 13, and the outer periphery of the first port 2124 of the auxiliary shell 212 is surrounded by a boss 2123 protruding toward the extension direction of the first through hole 2121, and the boss 2123 is operably inserted into the concave area 121. The configuration of the boss 2123 and the concave area 121 can guide the glue needle to enter the first channel 211. Those skilled in the art can make settings according to actual needs.

[0049] In addition, combined Figure 2 , Figure 4 and Figure 5 As shown, the electrode assembly 20 further includes a soft plastic shell 24 sleeved outside the mounting shell 21, and the soft plastic shell 24 has a second channel 241 extending in the direction of the second through hole 221. Figure 6As shown, the soft gel shell 24 partially extends in a direction away from the cap body 10 to form a functional part 242, and an end of the functional part 242 away from the cap body 10 is provided with an opening 243 communicating with the second channel 241. After the EEG cap 1 is put on, the soft gel shell 24 is directly and tightly fitted to the scalp, which can be compatible with people of different head sizes. In addition, the conductive glue flowing from the mounting shell 21 into the second channel 241 of the soft gel shell 24 can be collected to prevent it from overflowing on the scalp. Those skilled in the art can set it according to actual needs. And compatibility with head shapes of different sizes can be achieved by replacing soft gel shells 24 of different specifications. And after use, the soft gel shell 24 can be disassembled from the main shell 213, and the disassembled soft gel shell 24 can be soaked in water to clean most of the conductive glue on it, and the conductive glue remaining in the first channel 211 can be wiped. The amount of cleaning work is small, and those skilled in the art can set it according to actual needs.

[0050] Moreover, the soft rubber shell 24 has a soft property, which allows for quick installation and removal of the soft rubber shell 24 and the main shell 213. The soft rubber shell 24 can be conveniently removed from the main shell 213 and cleaned, and different types of soft rubber shells 24 can be conveniently replaced.

[0051] Preferably, if Figure 2 As shown, the soft rubber shell 24 partially covers and abuts against the side of the mounting shell 21 away from the cap body 10. The exposed part of the mounting shell 21 is hidden. This arrangement is reasonable, and the soft rubber shell 24 and the mounting shell 21 can be quickly installed and removed, which is convenient for removing and cleaning the soft rubber shell 24 and replacing soft rubber shells 24 of different specifications. Those skilled in the art can make arrangements according to actual needs.

[0052] Furthermore, if Figure 6 As shown, the soft gel shell 24 has a covering portion 244 covering the mounting shell 21, a connecting portion connected to the covering portion 244, and a functional portion 242 connected to the connecting portion. The second channel 241 runs through the covering portion 244, the connecting portion and the functional portion 242, and the inner diameter of the connecting portion is smaller than the inner diameters of the covering portion 244 and the functional portion 242, and the outer diameter of the connecting portion is smaller than the outer diameters of the covering portion 244 and the functional portion 242. The soft gel shell 24 can be made of other elastic materials such as silica gel, the inner diameter of the connecting portion is smaller than the inner diameters of the covering portion 244 and the functional portion 242, and the outer diameter of the connecting portion is smaller than the outer diameters of the covering portion 244 and the functional portion 242, that is, it presents a bell-shaped shape, which can achieve good compression and deformation effects, can achieve compatibility with people of different head sizes, and can also make the front edge of the bell-shaped mouth, that is, the opening 243 of the soft gel shell 24, fit closely with the scalp, play the effect of collecting the conductive glue, and prevent the conductive glue from overflowing on the scalp. The soft gel shell 24 has good deformation performance, and its second channel 241 maintains a closed space with the scalp, which can restrain the conductive gel and prevent it from overflowing and causing a short circuit between two electrode assemblies 20 that are close to each other.

[0053] Preferably, if Figure 7 As shown, the cap body 10 is an annular structure with an opening 243 at its top. Those skilled in the art can make configurations according to actual needs.

[0054] In addition, the outer shell 12 is an integrated rigid shell. The integrated rigid shell is strong and durable, while the soft gel shell 24 can improve the wearing comfort, and the combination of the two can be compatible with different head sizes. The inner shell 13 can also be set as an integrated rigid shell, in which case it can be ensured to be clean by wiping with a paper towel, which is convenient for cleaning.

[0055] The inner surface of the inner shell 13 may also be provided with a soft rubber pad 14, which can improve the wearing comfort. The soft rubber pad 14 may be provided with silicone, leather or cloth, etc. Those skilled in the art may perform the configuration according to actual needs.

[0056] Preferred embodiments of the present invention have been described above in detail, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0057] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0058] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An electroencephalogram cap, characterized in that: include: A cap body, wherein a plurality of injection ports are provided on the cap body; as well as A plurality of electrode assemblies, each of the electrode assemblies comprising: a mounting shell disposed on the cap body, an electrode disposed in the mounting shell, wherein the mounting shell is provided with a first passage running through it, the mounting shell has a first opening end and a second opening end connected to the first passage, the electrode is located on the side of the mounting shell where the second opening end is located, and the electrode is provided with a second through hole connected to the first passage; The mounting shell comprises: a secondary shell detachably connected to the cap body, and a main shell cooperating with the secondary shell to clamp and position the electrode; the secondary shell is provided with a first through hole extending in the same direction as the second through hole and connected thereto, and the main shell is provided with a fourth through hole extending in the same direction as the second through hole and connected thereto; The auxiliary shell has a first port and a second port along the extending direction of the first through hole, the first port is located on the side where the first opening end is located, and the second port is located on the side where the second opening end is located; the side where the first port of the auxiliary shell is located is inserted into the cap body and docked with the injection port; Each of the electrode assemblies further includes: a gasket clamped between the electrode and the auxiliary housing; a third through hole extending in the same direction as the second through hole and connected thereto is opened on the gasket; the main housing at least partially covers and abuts against a side of the electrode away from the auxiliary housing; The electrode assembly further includes: a soft plastic shell sleeved outside the mounting shell, the soft plastic shell having a second channel extending in the direction of the second through hole; At least a portion of the soft plastic shell extends in a direction away from the cap body to form a functional portion, and an end of the functional portion away from the cap body is provided with an opening communicated with the second channel.

2. The electroencephalogram cap according to claim 1, characterized in that: The cap body further comprises: an outer shell provided with the injection port, and an inner shell arranged on the inner surface of the outer shell, and each of the electrode assemblies penetrates the inner shell and is detachably connected to the inner shell.

3. The EEG cap according to claim 2, characterized in that: The auxiliary shell is at least partially exposed outside the main shell along the extension direction of the second through hole, and a limit member is provided on the outer side wall of the auxiliary shell exposed outside the main shell, and the limit member is separated from the auxiliary shell; and the limit member is operably located between the outer shell and the inner shell, and is against a side of the inner shell facing the outer shell, and the main shell is located on a side of the inner shell facing away from the outer shell.

4. The EEG cap according to claim 2, characterized in that: The outer shell has a recessed area around the periphery of the injection port on one side facing the inner shell; the first port of the auxiliary shell is surrounded by a boss protruding toward the extension direction of the first through hole; the boss is operably inserted into the recessed area.

5. The EEG cap according to claim 1, characterized in that: The soft plastic shell at least partially covers and abuts against a side of the mounting shell facing away from the cap body.

6. The EEG cap according to claim 5, characterized in that: The soft plastic shell comprises a covering portion covering the mounting shell, and a connecting portion connected to the covering portion, and the functional portion is connected to the connecting portion; The second channel passes through the covering portion, the connecting portion and the functional portion, and the inner diameter of the connecting portion is smaller than the inner diameters of the covering portion and the functional portion, and the outer diameter of the connecting portion is smaller than the outer diameters of the covering portion and the functional portion.

7. The EEG cap according to claim 1, characterized in that: The cap body comprises: an outer shell provided with the injection port, and an inner shell detachably connected to the inner surface of the outer shell, and the electrode assembly is detachably connected to the inner shell.

8. The EEG cap according to claim 7, characterized in that: The cap body is a ring-shaped structure with an opening on the top.

9. The EEG cap according to claim 1, characterized in that: The cap body further comprises: an outer shell provided with the injection port, and an inner shell arranged on the inner surface of the outer shell, each of the electrode assemblies passes through the inner shell and is connected to the inner shell; the outer shell is an integrated rigid shell.

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