Electroencephalogram cap and conductive sponge product for electroencephalogram cap

Abstract

The utility model relates to a conductive sponge product for an electroencephalogram cap, which comprises a packaging base body and a sealing layer, a plurality of packaging groove bodies are formed on the packaging base body, the layout of the packaging groove bodies on the packaging base body is matched with the layout of electrodes on electrode sub-partitions of the electroencephalogram cap, and a conductive sponge is accommodated in each packaging groove body. The sealing layer is separably arranged on the surface of the packaging base body and closes all the packaging groove bodies. In the utility model, the plurality of conductive sponges are packaged on the packaging base body, and the packaging groove body layout on the packaging base body is matched with the electrode layout on the electrode sub-partition of the electroencephalogram cap, so that the conductive sponges can be mounted on all the electrodes in one electrode sub-partition at one time, and the mounting efficiency of the conductive sponges is greatly improved; the electrode installation time of the wet electrode electroencephalogram cap is obviously shortened, and the labor intensity of medical staff is relieved. In addition, based on the restraining and supporting effects of the packaging groove body, the situation that the periphery of the conductive sponge collapses and cannot be sleeved into the end part of the electrode during installation can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of brain-computer interface, and specifically relates to an electroencephalogram cap and a conductive sponge product used for the electroencephalogram cap. Background Art

[0002] The high-lead wet electrode EEG cap has two obvious characteristics: one is that the number of leads is relatively high, such as 512 leads and 1024 leads, that is, there are 512 / 1024 electrodes arranged inside the EEG cap; the second is that the EEG cap is a wet electrode EEG cap, that is, each electrode end needs to be installed with a conductive sponge saturated with physiological saline.

[0003] Based on the above characteristics, how to install conductive sponges on all electrodes in a short time has become a key bottleneck problem. At present, conductive sponges are installed one by one manually. When the number of leads is 512, it basically needs to be ready within 30 to 45 minutes. If the 1024-lead EEG cap also uses the manual installation method of conductive sponges, it will take a lot of time, the labor intensity of medical staff is high, and the operation efficiency is seriously affected. Utility Model Content

[0004] The utility model relates to an electroencephalogram cap and a conductive sponge product used for the electroencephalogram cap, which can at least solve some defects of the prior art.

[0005] The utility model relates to a conductive sponge product for an electroencephalogram (EEG) cap, comprising a packaging base and a sealing layer. A plurality of packaging slots are formed on the packaging base. The layout of the packaging slots on the packaging base matches the electrode layout on the electrode sub-divisions of the EEG cap. A conductive sponge is accommodated in each of the packaging slots. The sealing layer can be detachably arranged on the surface of the packaging base and closes each of the packaging slots.

[0006] As one of the implementation modes, the shape of the packaging slot body matches the shape of the conductive sponge, and the size of the packaging slot body matches the size of the conductive sponge.

[0007] As one of the implementation modes, the packaging tank is filled with physiological saline.

[0008] As one of the implementation modes, the surface of the packaging base body where the sealing layer is located is a concave spherical surface.

[0009] As one of the implementation modes, the packaging base is in the shape of a spherical petal, and the sealing layer is arranged on the spherical center side surface of the packaging base.

[0010] As one of the implementation modes, the packaging substrate is a plastic part.

[0011] As one of the implementation modes, the sealing layer is a release paper, and the release paper is attached to the surface of the packaging substrate.

[0012] As one of the implementation modes, an alignment mark is provided on the edge of the packaging substrate.

[0013] The utility model also relates to an electroencephalogram cap, comprising a cap body, wherein the cap body has a plurality of electrode sub-regions, each electrode sub-region is provided with a plurality of electrodes, and the end of each electrode extends out from the inner wall of the cap body.

[0014] As one of the implementation modes, the electrode sub-divisions have the same structure.

[0015] The utility model has at least the following beneficial effects:

[0016] In the utility model, a plurality of conductive sponges are packaged on the packaging substrate, and the packaging slot layout on the packaging substrate is matched with the electrode layout on the electrode sub-division of the EEG cap, so that all electrodes in one electrode sub-division can be installed with conductive sponges at one time, which greatly improves the efficiency of conductive sponge installation, significantly shortens the electrode installation time of the wet electrode EEG cap, and reduces the labor intensity of medical staff. In addition, based on the restraint and support function of the packaging slot, it can prevent the conductive sponge from collapsing around and being unable to be inserted into the electrode end during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of an EEG cap provided by an embodiment of the utility model;

[0019] Figure 2 Schematic diagram of the coordination between the conductive sponge and the electrode;

[0020] Figure 3 A schematic diagram of the connection of each electrode sub-area provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of an electroencephalogram cap after being turned over provided by an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of installing the conductive sponge product on the EEG cap;

[0023] Figure 6 A schematic diagram of the structure of a conductive sponge product provided by an embodiment of the utility model;

[0024] Figure 7 A schematic diagram of the structure of a conductive sponge installation pen provided in an embodiment of the utility model;

[0025] Figure 8 A schematic diagram of the structure of an elastic clip 52 provided in an embodiment of the utility model;

[0026] Fig. 9 A cross-sectional view of a conductive sponge installation pen provided in an embodiment of the utility model;

[0027] Fig.10 for Fig. 9 Enlarged schematic diagram of part A. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] like Figure 5 and Figure 6 An embodiment of the utility model provides a conductive sponge product 30 for an EEG cap, comprising a packaging base 31 and a sealing layer, wherein a plurality of packaging slots 33 are formed on the packaging base 31, and the layout of the packaging slots 33 on the packaging base 31 matches the electrode layout on the electrode sub-partition 4 of the EEG cap, and each of the packaging slots 33 accommodates a conductive sponge 3, and the sealing layer can be detachably arranged on the surface of the packaging base 31 and closes each of the packaging slots 33.

[0031] In one embodiment, the packaging base 31 is a plastic part, and more preferably a component made of a blister material, including but not limited to a PETG part / APET part, etc.

[0032] The packaging tank body 33 is preferably formed integrally with the packaging base 31 , which is easy to achieve for vacuum molded parts / blow molded parts / injection molded parts.

[0033] The slots of the packaging slot 33 are all located on the same side surface of the packaging base 31, and the opening of the conductive sponge 3 is facing the slot of the corresponding packaging slot 33. After the sealing layer is separated, the conductive sponge 3 can be easily mounted on the electrode 2. In one embodiment, Figure 5 and Figure 6The notch of the packaging slot body 33 is located on one side surface of the packaging base 31, and the other end of the packaging slot body 33 protrudes from the other side surface of the packaging base 31. The packaging base 31 does not need to be too thick.

[0034] In one embodiment, the sealing layer is a release paper 32 , and the release paper 32 is attached to the surface of the packaging base 31 . When in use, the conductive sponge 3 can be installed by tearing off the release paper 32 .

[0035] The above-mentioned conductive sponge 3 is a component suitable for being installed on the electrode 2 of the EEG cap. In one embodiment, the packaging slot 33 is filled with physiological saline, so that the conductive sponge 3 is immersed in the physiological saline, ensuring that the conductive sponge 3 installed at the end of the electrode 2 has been saturated with the physiological saline, which can improve the collection effect of the EEG signal; in addition, the surface tension of the physiological saline can make the conductive sponge 3 be adsorbed in the packaging slot 33, thereby preventing the conductive sponge 3 from detaching from the packaging slot 33 after the sealing layer is separated.

[0036] Preferably, the shape of the packaging slot body 33 matches the shape of the conductive sponge 3, and the size of the packaging slot body 33 matches the size of the conductive sponge 3. The conductive sponge 3 and the packaging slot body 33 may be clearance-fitted, but preferably, the size of the packaging slot body 33 is designed so that the conductive sponge 3 is slightly squeezed and accommodated in the packaging slot body 33 (for example, the packaging slot body 33 is a stepped shaft slot body adapted to the conductive sponge 3, and the cross-sectional diameters of the packaging slot body 33 at various locations are slightly smaller than the cross-sectional diameters of the conductive sponge 3 at corresponding locations, or the diameters of the large-sized slot sections at the notches are slightly smaller than the cross-sectional diameters of the conductive sponge 3 at corresponding locations). In this way, the flexibility of the conductive sponge 3 is utilized to ensure the stability of the conductive sponge 3 in the packaging slot body 33, and prevent the conductive sponge 3 from escaping from the packaging slot body 33 after the sealing layer is separated.

[0037] Preferably, the surface of the packaging substrate 31 where the sealing layer is located is a concave spherical surface. When installing the conductive sponge 3, based on the good stretchability and elasticity of the EEG cap, the EEG cap is turned over and placed on the hemispherical tooling, so that the EEG cap is hemispherical with the electrode 2 facing outward, and the corresponding surface of the packaging substrate 31 is a concave spherical surface, so that the packaging substrate 31 can fit closely with the surface of the EEG cap to ensure the installation effect of the conductive sponge 3.

[0038] In one embodiment, if Figure 5 and Figure 6 The packaging base 31 is in a spherical petal shape, and the sealing layer is arranged on the spherical center side surface of the packaging base 31, so that it can better adapt to the spherical petal electrode sub-partition 4 of the EEG cap.

[0039] In one of the embodiments, an alignment mark 34 is provided on the edge of the packaging base 31. By aligning the alignment mark 34 with the alignment mark on the EEG cap, the installation accuracy of the conductive sponge 3 can be ensured and the operation efficiency can be improved.

[0040] In this embodiment, a plurality of conductive sponges 3 are packaged on the packaging substrate 31, and the layout of the packaging slot 33 on the packaging substrate 31 is matched with the electrode layout on the electrode sub-area 4 of the EEG cap, so that all electrodes 2 in one electrode sub-area 4 can be installed with conductive sponges 3 at one time, which greatly improves the installation efficiency of the conductive sponges 3, significantly shortens the installation time of the electrodes 2 of the wet electrode EEG cap, and reduces the labor intensity of medical staff. In addition, based on the restraint and support function of the packaging slot 33, it can prevent the conductive sponge 3 from collapsing around and failing to be inserted into the end of the electrode 2 during installation.

[0041] In one embodiment, the conductive sponge 3 includes an outer shell layer and an inner lining layer connected to the inner wall of the outer shell layer, wherein the hardness of the outer shell layer is less than the hardness of the inner lining layer. Thus, the enhanced hardness of the inner lining layer can prevent the conductive sponge 3 from collapsing on all sides during installation and being unable to be inserted into the end of the electrode 2.

[0042] Embodiment 2

[0043] like Figure 1-Figure 5 An embodiment of the utility model provides an EEG cap, comprising a cap body 1 , wherein the cap body 1 has a plurality of electrode sub-partitions 4 , each electrode sub-partition 4 is provided with a plurality of electrodes 2 , and the end of each electrode 2 extends from the inner wall of the cap body 1 .

[0044] The EEG cap provided in this embodiment is a wet electrode EEG cap, that is, a conductive sponge 3 is also installed on the electrode 2; the conductive sponge 3 on the electrode 2 of each electrode sub-area 4 can be installed using the conductive sponge product 30 provided in the above-mentioned embodiment 1.

[0045] Among them, preferably, each of the electrode sub-partitions 4 has the same structure. When the conductive sponge product 30 provided in the above-mentioned embodiment 1 is adopted, only one conductive sponge product 30 is required, thereby reducing production costs. Moreover, since each of the electrode sub-partitions 4 has the same structure, the installation of the conductive sponge 3 does not require fool-proofing, which can further improve installation efficiency.

[0046] In one embodiment, if Figure 3-Figure 5 Each electrode sub-area 4 is provided with a flexible circuit board 4 (FPCB board), and each electrode 2 of the electrode sub-area 4 is connected to the flexible circuit board 4. The use of the flexible circuit board 4 can better match the stretchability and elasticity of the EEG cap, thereby ensuring the application effect of the EEG cap.

[0047] The electrode 2 is preferably welded to the flexible printed circuit board 4 .

[0048] Each flexible circuit board 4 can be electrically connected to the same output circuit; in another embodiment, Figure 3 Each flexible circuit board 4 is connected at the top of the cap to form an integral circuit board, including but not limited to cutting a circular whole board to form a plurality of circuit board petals to form a petal-like structure that is connected and gathered in the middle.

[0049] The flexible circuit board 4 is preferably wrapped in the cap body 1. In one embodiment, the cap body 1 includes an outer cap layer and an inner cap layer connected to each other, the flexible circuit board 4 is sandwiched between the outer cap layer and the inner cap layer, and the electrode 2 passes through the inner cap layer, so that the end of the electrode 2 extends from the inner wall of the cap body 1. Based on this structure, while ensuring reliable collection of EEG signals, it has a good comfort level.

[0050] like Figure 4 and Figure 5 After the cap body 1 is turned over and placed on the hemispherical tooling, each flexible circuit board 4 forms a plurality of spherical circuit board petals distributed in sequence along the circumference of the spherical cap body 1, and correspondingly forms a plurality of spherical petal-shaped electrode sub-partitions 4 distributed in sequence along the circumference of the spherical cap body 1, and the above-mentioned spherical petal-shaped packaging base 31 can be adapted to the spherical circuit board petals.

[0051] The cap body 1 is preferably a silicone cap. In the case where the cap body 1 includes an outer cap layer and an inner cap layer, both the outer cap layer and the inner cap layer are made of silicone.

[0052] Embodiment 3

[0053] The embodiment of the utility model provides a conductive sponge installation pen 5, which can be used for manually / automatically installing the conductive sponge 3. For example, after the conductive sponge 3 is installed on the EEG cap by using the conductive sponge product 30 provided in the above-mentioned embodiment 1, the installation pen 5 can be used to perform supplementary installation in case that the conductive sponge 3 is not installed on the electrode 2 / the conductive sponge 3 is not installed properly. Therefore, the installation pen 5 can be used as a supporting installation device for the above-mentioned conductive sponge product 30.

[0054] like Figure 7-10 The conductive sponge installation pen 5 comprises an outer tube 51, an elastic clip 52, a support column 53 and a spring 54, wherein the elastic clip 52 comprises a main rod 521 and a plurality of elastic claws 522, the main rod 521 and the support column 53 are coaxially and movably accommodated in the outer tube 51, each of the elastic claws 522 is connected to the front end of the main rod 521 and is distributed around the support column 53, a plurality of clearance holes are provided at the front end of the outer tube 51, and each of the elastic claws 522 extends out from each of the clearance holes respectively; the axis of the spring 54 is parallel to the axis of the main rod, and the two ends of the spring 54 are respectively in contact with the support column 53 and the front end of the outer tube 51.

[0055] Among them, the clamping ends of each elastic clamping claw 522 are cocircular, suitable for clamping the conductive sponge 3 and suitable for being inserted into the groove of the electrode 2. In the initial state, the diameter of the circle where each clamping end is located is smaller than the diameter of the conductive sponge 3. When the elastic clamp 52 is stretched to the maximum, the diameter of the circle where each clamping end is located is larger than the diameter of the conductive sponge 3; thus, when the elastic clamp 52 is stretched to a certain extent, the conductive sponge 3 can be clamped by each elastic clamping claw 522.

[0056] The number of the elastic clamping jaws 522 is preferably not less than 3 to ensure the clamping stability and reliability. The elastic clamping jaws 522 are distributed in an annular manner relative to the axis of the main rod, and are preferably evenly spaced.

[0057] The elastic clamping claw 522 includes a clamping arm in addition to a clamping end. Optionally, the clamping end and the clamping arm are connected to form an L-shaped structure, which can improve the clamping effect on the conductive sponge 3.

[0058] like Fig. 9 and Fig.10 The expansion column 53 is preferably in the shape of a truncated cone, and the cross-sectional area gradually increases from the back to the front, so as to ensure the expansion effect of the elastic clamp 522; the front end of the expansion column 53 is the end close to the front end of the outer tube 51 / away from the main rod 521, and the spring 54 is preferably against the front end of the expansion column 53.

[0059] Furthermore, each elastic clamping jaw 522 is distributed on the same common conical surface, which is coaxial with the above-mentioned opening column 53 and has the same tapering direction, wherein the rear end of each elastic clamping jaw 522 (i.e., the end connected to the main rod 521) is located on the same common circle, and the rear end diameter of the opening column 53 is smaller than the diameter of the common circle, thereby ensuring that the opening column 53 can open each elastic clamping jaw 522. Preferably, the front end of the outer cylinder 51 adopts a shape that tapers from front to back to facilitate the arrangement of the elastic clamping jaw 522 and meet the deformation requirements of the elastic clamping jaw 522.

[0060] Among them, the taper of the above-mentioned expansion column 53 is the same as the taper of the above-mentioned common conical surface, or the taper of the expansion column 53 is slightly larger than the taper of the above-mentioned common conical surface, and specifically should meet the following requirements: when the elastic clip 52 is driven to reach the end of the stroke, the angle at which the elastic clip 52 is expanded ensures that it can wrap the conductive sponge 3.

[0061] Furthermore, if Figure 8-Figure 10The main rod 521 includes a constraint section 5211 and a guide section 5212. The constraint section 5211 adopts a structure that gradually shrinks from front to back. Each elastic clamping claw 522 is connected to the front end of the constraint section 5211, and the guide section 5212 is connected to the rear end of the constraint section 5211. The outer cylinder 51 includes a front cylinder body 511 suitable for accommodating the constraint section 5211 and a rear cylinder body 512 connected to the rear end of the front cylinder body 511, wherein the front end inner diameter of the rear cylinder body 512 is smaller than the front end outer diameter of the constraint section 5211. When the elastic clip 52 retreats, based on the interference between the constraint section 5211 and the rear cylinder body 512, a limiting effect can be formed, so that the stretched elastic clip 52 is recovered, and the retreat stroke of the elastic clip 52 can be controlled to prevent the elastic clip 52 from losing its position; in addition, based on the above structure, the spring 54 can also be pre-compressed to ensure the use effect of the installation pen 5.

[0062] The guide section 5212 and the rear cylinder 512 preferably have a clearance fit structure, which can reliably guide the movement of the elastic clip 52 and ensure that the elastic clip 52 only moves in the axial direction.

[0063] In one embodiment, if Fig. 9 and Fig.10 A first guide post 531 is formed at the front end of the expansion post 53, and the spring 54 is sleeved on the first guide post 531. This can improve the reliability and smoothness of the expansion post 53 and prevent the expansion post 53 and the spring 54 from being separated or out of position. The first guide post 531 and the spring 54 are preferably guided, for example, the first guide post 531 and the inner ring of the spring 54 are clearance-fitted; when the first guide post 531 and the expansion post 53 are coaxially designed, the coaxiality between the expansion post 53 and the spring 54 can be improved.

[0064] In one embodiment, if Fig. 9 and Fig.10 , a second guide post 513 is provided in the outer cylinder 51, and the spring 54 is sleeved on the second guide post 513, so that the reliability and smoothness of the activity of the opening post 53 can be improved, and the spring 54 can be prevented from being out of position. The second guide post 513 and the spring 54 are preferably guided, for example, the second guide post 513 and the inner ring of the spring 54 are clearance-fitted. It can be understood that the second guide post 513 is provided on the front inner wall of the outer cylinder 51, and is formed by extending backward from the front inner wall of the outer cylinder 51.

[0065] Preferably, if Fig. 9 and Fig.10, a limit seat 513 is provided on the front inner wall of the outer tube 51, and the limit seat 513 is protruded backward from the front inner wall of the outer tube 51, and is used to limit the forward movement of the expansion column 53. Therefore, a first limit portion is correspondingly provided on the expansion column 53, and the limit seat 513 is opposite to the first limit portion, and when the two are in contact, the compression amount of the spring 54 is less than its maximum compression amount. By limiting the forward movement of the expansion column 53, the expansion operation of the elastic clip 52 can be facilitated, so that the force for the elastic clip 52 to be expanded mainly comes from the relative force between the expansion column 53 and the elastic clip 52, rather than relying on the elastic force of the spring 54, which can reduce the selection requirements of the spring 54 and save the manufacturing cost of the installation pen 5.

[0066] Furthermore, a limiting hole 514 is provided on the limiting seat 513, and a limiting pin 532 is provided on the first limiting portion (or a limiting pin 532 is provided on the limiting seat 513, and a limiting hole 514 is provided on the first limiting portion). When the first limiting portion approaches the limiting seat 513, the limiting pin 532 is inserted into the limiting hole 514, which can improve the restraining effect on the support column 53, prevent the support column 53 from shaking or losing its position, and keep the support column 53 still.

[0067] In particular, when a limiting hole 514 is provided on the limiting seat 513 and the limiting hole 514 passes through the front end of the outer tube 51 , the limiting hole 514 can also play an exhaust role, which is convenient for installing the pen 5 for use.

[0068] When the outer cylinder 51 is provided with a second guide column 513, the second guide column 513 can be configured as the above-mentioned limiting seat 513, and the limiting hole 514 / limiting pin 532 are correspondingly formed on the second guide column 513. When the expansion column 53 is provided with a first guide column 531, the first guide column 531 can be configured as the above-mentioned first limiting portion, and the limiting hole 514 / limiting pin 532 are correspondingly formed on the first guide column 531.

[0069] In one embodiment, if Figure 7 , Fig. 9 and Fig.10 The installation pen 5 further comprises an actuator 55, which is connected to the rear end of the main rod 521. The actuator 55 is acted on manually or with the help of an automated device to drive the elastic clip 52 to move. Preferably, the actuator 55 is at least partially located outside the outer tube 51, and a second limiting portion is provided on the exposed portion thereof. The second limiting portion cooperates with the rear end of the outer tube 51 to interfere with each other, so as to limit the movable travel of the elastic clip 52, thereby preventing the elastic clamping claw 522 from being over-opened and damaged.

[0070] The use of the conductive sponge installation pen 5 is as follows:

[0071] When the actuator 55 is driven, the elastic clip 52 moves forward and pushes the support column 53 to move forward together; as the moving distance increases, the compression of the spring 54 increases, resulting in an increase in its reaction resistance to the support column 53, and ultimately the support column 53 reaches a state of two-force balance and no longer moves (or is restricted by the limit seat 513 and no longer moves) under the combined action of the elastic force of the spring 54 and the thrust of the elastic clip 52.

[0072] However, the driving force applied to the actuator 55 is not released at this time, so the elastic clip 52 will continue to move forward; the stationary expansion column 53 will expand the elastic clip 52, and when the expansion amplitude is slightly larger than the conductive sponge 3, the conductive sponge 3 can be clamped. The driving force on the actuator 55 is released, and the elastic force of the spring 54 acts on the expansion column 53, and the expansion column 53 retreats to drive the elastic clip 52 to retreat. The expansion amplitude of the end of the elastic clip 52 is reduced due to the limit of the outer cylinder 51, and the conductive sponge 3 is clamped. The rigidity of the conductive sponge 3 itself can enable it to resist a certain clamping force and maintain its own shape.

[0073] After the conductive sponge 3 is installed to the end of the electrode 2 by the installation pen 5, the actuator 55 is driven, and the elastic clip 52 continues to move forward and is further stretched, releasing the elastic clip 52 from clamping the conductive sponge 3, and the conductive sponge 3 is released on the electrode 2. The actuator 55 is released, and the installation pen 5 is reset as a whole, and the installation of the conductive sponge 3 for one electrode 2 is completed.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conductive sponge product for an electroencephalogram cap, characterized in that: It includes a packaging base and a sealing layer, wherein a plurality of packaging slots are formed on the packaging base, the layout of the packaging slots on the packaging base matches the electrode layout on the electrode sub-division of the EEG cap, each of the packaging slots accommodates a conductive sponge, and the sealing layer can be detachably arranged on the surface of the packaging base and closes each of the packaging slots.

2. The conductive sponge product according to claim 1, characterized in that: The shape of the packaging slot body matches the shape of the conductive sponge, and the size of the packaging slot body matches the size of the conductive sponge.

3. The conductive sponge product according to claim 1, characterized in that: The packaging tank is filled with physiological saline.

4. The conductive sponge product according to claim 1, characterized in that: The surface of the packaging base body where the sealing layer is located is a concave spherical surface.

5. The conductive sponge product according to claim 1 or 4, characterized in that: The packaging base is in a spherical petal shape, and the sealing layer is arranged on the spherical center side surface of the packaging base.

6. The conductive sponge product according to claim 1, characterized in that: The packaging base is a plastic part.

7. The conductive sponge product according to claim 1, characterized in that: The sealing layer is a release paper, and the release paper is attached to the surface of the packaging substrate.

8. The conductive sponge product according to claim 1, characterized in that: The edge of the packaging base is provided with an alignment mark.

9. An electroencephalogram cap, comprising a cap body, characterized in that: The cap body has a plurality of electrode sub-areas, each of which is provided with a plurality of electrodes, and the end of each electrode extends out from the inner wall of the cap body.

10. The EEG cap as claimed in claim 9, characterized in that: The electrode sub-regions have the same structure.

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