Base structure for fixing electrode on brain-computer interface device and brain-computer interface device

Abstract

The utility model discloses a base structure for fixing an electrode on brain-computer interface equipment, which comprises a base lower part and a base upper part, the base lower part is formed on the surface of the brain-computer interface equipment, and the base lower part is provided with a first channel communicated with the inside of the brain-computer interface equipment; the base upper part is fixed to the base lower part and provided with a second channel coaxial with the first channel, a cavity used for fixing an electrode is formed between the base upper part and the base lower part, and the cavity is communicated with the first channel and the second channel. According to the brain-computer interface device, the electrode is fixed between the upper base part and the lower base part, so that the electrode is well fixed on the brain-computer interface device, meanwhile, the upper base part can isolate liquid, and the stability is improved.

Description

Technical Field

[0001] This utility model belongs to the fields of neural engineering and brain-computer interface technology, specifically relating to a base structure for fixing electrodes on a brain-computer interface device, and a brain-computer interface device using the base structure. Background Technology

[0002] Brain-computer interfaces (BCIs) refer to the direct connection created between the brain of a person or animal and an external device, enabling information exchange between the brain and the device. BCI technology is a revolutionary human-computer interaction technology. Its mechanism of action bypasses peripheral nerves and muscles, directly establishing a new communication and control channel between the brain and external devices. By capturing brain signals and converting them into electrical signals, it enables information transmission and control.

[0003] Currently, brain-computer interface devices require the fixation of solid-state dry electrodes, such as styrene electrodes, metal-plated electrodes, and ABS-plated electrodes. These electrodes also come into contact with other electrodes, such as conductive paste, gel electrodes, and EEG-specific conductive fluids, which may leak liquid components. Therefore, the base for fixing dry electrodes, as a common mechanical component, is used in conjunction with nuts to secure these common electrode parts. Furthermore, other common electrodes, such as conductive paste, gel, and sponge electrodes, contain liquid components, so the base needs to be waterproofed to protect the internal circuit boards and other core components. At the same time, the base structure cannot effectively fix the electrode positions, thus affecting the quality of data acquired by the device, ultimately leading to deficiencies in the accuracy and stability of signal monitoring.

[0004] Therefore, to address the aforementioned technical problems, it is necessary to provide a base structure for fixing electrodes on a brain-computer interface device to improve the accuracy and stability of signal monitoring.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a base structure for fixing electrodes on a brain-computer interface device. The electrodes are fixed by the cooperation of the upper base and the lower base. At the same time, the upper base can also isolate liquids, thereby improving stability.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] This utility model discloses a base structure for fixing electrodes on a brain-computer interface device, including a lower base and an upper base. The lower base is formed on the surface of the brain-computer interface device and has a first channel communicating with the interior of the brain-computer interface device. The upper base is fixed to the lower base and has a second channel coaxial with the first channel. The upper base and the lower base form a cavity for fixing electrodes, and the cavity communicates with the first channel and the second channel.

[0009] In one or more embodiments of the present invention, the lower part of the base protrudes with a boss for supporting the electrode, the first channel is formed on the surface of the boss, and the boss extends into the second channel.

[0010] In one or more embodiments of the present invention, the lower base component further includes a groove recessed on the surface of the brain-computer interface device, the boss protruding from the bottom of the groove, and the upper base component includes a main body portion capable of being embedded in the groove.

[0011] In one or more embodiments of the present invention, the base component further includes a connecting portion protruding from the main body, and the channel opening of the second channel is opened on the surface of the connecting portion.

[0012] In one or more embodiments of the present invention, the second channel is provided with an annular stop wall, and the cavity is formed between the stop wall and the boss.

[0013] In one or more embodiments of this utility model, the outer wall of the connecting part is further provided with a thread that can cooperate with an external nut.

[0014] In one or more embodiments of this utility model, the diameter of the groove gradually decreases from the opening to the bottom, and the diameter of the main body gradually decreases in the direction away from the connecting part.

[0015] In one or more embodiments of the present invention, the base lower part includes a slot formed in the groove, and the main body protrudes with a buckle capable of being inserted into the slot.

[0016] In one or more embodiments of this utility model, the slot includes a first slot and a second slot disposed opposite to each other on both sides of the boss, and the buckle includes a first buckle and a second buckle respectively embedded in the first slot and the second slot.

[0017] This utility model also provides a brain-computer interface device, including a device body for attaching to the surface of the head, and multiple base components distributed on one side of the device body that is attached to the surface of the head.

[0018] Compared with the prior art, the base structure for fixing electrodes on the brain-computer interface device of this utility model fixes the electrodes between the upper base and the lower base, so the electrodes are well fixed on the brain-computer interface device. At the same time, the upper base can also isolate liquid, which improves stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the base structure for fixing electrodes on a brain-computer interface device according to one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the lower base component in one embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the base upper component in one embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the base component from another angle in one embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of the base structure for fixing electrodes on a brain-computer interface device according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of a brain-computer interface device in one embodiment of the present invention.

[0026] Explanation of key figure labels:

[0027] 100-Base structure, 10-Upper part of base, 11-First channel, 12-Boss, 13-Groove, 14-Slot, 20-Lower part of base, 21-Second channel, 22-Main body, 23-Stop wall, 24-Connecting part, 25-Snap, 200-Brain-computer interface device, 210-Main body of device. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] like Figure 1-5 As shown, in one embodiment of the present invention, a base structure 100 for fixing electrodes on a brain-computer interface device includes a lower base 10 and an upper base 20. The lower base 10 is formed on the surface of the brain-computer interface device that is in contact with the human brain, and is used to determine the specific position of the electrodes. A first channel 11 communicating with the interior of the device is formed on the lower base 10. The upper base 20 cooperates with the lower base 10 to fix the electrodes in that position. The upper base 20 has a second channel 21 coaxial with the first channel 11. After the upper base 20 is fixed to the lower base 10, a cavity for fixing the electrodes is formed between the upper base 20 and the lower base 10. The electrodes are fixed between the lower base 10 and the upper base 20, and are connected to the internal devices of the device through the first channel 11, and are in contact with the surface of the human head through the second channel 21.

[0030] In this embodiment, the electrodes can be well fixed on the brain-computer interface device by the cooperation of the lower base 10 and the upper base 20. At the same time, conductive liquid, sweat and other liquids are isolated by the upper base 20, which has good waterproof performance and high stability.

[0031] like Figure 2 As shown, the lower base 10 includes a boss 12 that extends upward into the second channel 21, and the opening of the first channel 11 is formed on the surface of the boss 12. The boss 12 is used to support the electrode, so the electrode is positioned above the surface of the device, resulting in better waterproofing.

[0032] Furthermore, the lower base 10 also includes a recess 13 recessed into the surface of the equipment, and a boss 12 protruding from the bottom of the recess 13. The upper base 20 includes a main body 22 that can be embedded within the recess 13. As can be seen from the above configuration, the main body of the lower base 10 is composed of the recess 13 and the boss 12. After the main body 22 of the upper base 20 is embedded in the recess 13, due to the limiting effect of the sidewalls, the upper base 20 will not experience horizontal displacement, thus preventing damage to the electrodes due to misoperation. Simultaneously, because the main body of the upper base 20 is embedded in the recess 13, the portion protruding from the equipment surface is minimal, resulting in a more aesthetically pleasing overall appearance.

[0033] Preferably, the base upper part 20 also includes an annular stop wall 23, which is located in the second channel 21. It cooperates with the boss 12 to fix the electrode. The electrode is squeezed between the boss 12 and the stop wall 23, so it will not easily displace and has high stability.

[0034] Furthermore, the upper base 20 also includes a connecting portion 24 connected to the main body 22, and the opening of the second channel 21 is formed on the top surface of the connecting portion 24. In some cases, it is necessary to provide two electrodes between the lower base 10 and the upper base 20. The connecting electrode for connecting internal devices is fixed between the boss 12 and the stop wall 23, while the detection electrode that fits against the head surface needs to be inserted into the second channel 21 and connected to the connecting electrode. To improve the fixing effect of the detection electrode, threads are provided on the outer wall of the connecting portion 24. The length of the second channel 21 can be extended by using an external nut to increase the space length for fixing the detection electrode, thereby better fixing the detection electrode within the second channel 21 and achieving a better fixing effect.

[0035] In this embodiment, the groove 13 is a frustum-shaped groove with its opening gradually decreasing in diameter towards the bottom. Correspondingly, the main body 22 is also frustum-shaped with its diameter gradually decreasing in the direction away from the connecting part 24. This arrangement can provide guidance for the mounting base 20 and improve the success rate of installation.

[0036] In this embodiment, the upper base 20 and the lower base 10 are detachably fixed. Specifically, a slot 14 is opened in the groove 13, and a buckle 25 that can be embedded in the slot 14 is provided on the main body 22.

[0037] To improve the fixing effect, two opposing slots 14 are provided in the groove 13, and these two slots are located on both sides of the boss 12. At the same time, two buckles 25 are provided on the main body 22. It should be noted that the specific number of slots 14 and buckles 25 is not limited by the above-mentioned number, and their positions can be interchanged. That is, the slots 14 can be opened on the main body 22, and the buckles 25 can be placed in the groove 13. This embodiment does not limit this.

[0038] This utility model also provides a brain-computer interface device 200, such as Figure 6 As shown, multiple base structures 100 are distributed on the surface of the device body 210, so a larger number of electrodes can be fixed on the surface of the device body 210 to increase the number of detection positions and improve the accuracy and stability of detection.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A base structure for securing electrodes on a brain-computer interface device, characterized by, The application relates to a base structure for a brain-computer interface device. The base lower part is provided with a first channel for communication with the inside of the brain-computer interface device. The base upper part is fixed to the base lower part and is provided with a second channel coaxial with the first channel.

2. The pedestal structure for securing electrodes on a brain-machine interface device according to claim 1, wherein, The base lower part is provided with a boss for supporting an electrode, and the first channel is formed in the surface of the boss.

3. The pedestal structure for securing electrodes on a brain-machine interface device according to claim 2, wherein, The base lower part is further provided with a groove in the surface of the brain-computer interface device, and the boss protrudes from the bottom of the groove.

4. The base structure for securing electrodes on a brain-machine interface device according to claim 3, wherein, The base upper part is further provided with a connecting part protruding from the main body.

5. The base structure for securing electrodes on a brain-machine interface device according to claim 4, wherein, The second channel is provided with an annular stop wall, and the cavity is formed between the stop wall and the boss.

6. The pedestal structure for securing electrodes on a brain-machine interface device of claim 4, wherein, The connecting part is further provided with a thread on the outer wall.

7. The pedestal structure for securing electrodes on a brain-machine interface device of claim 4, wherein, The diameter of the groove gradually decreases from the opening to the bottom.

8. The pedestal structure for securing electrodes on a brain-machine interface device of claim 3, wherein, The base lower part is provided with a clamping groove in the groove, and the main body is provided with a clamping buckle protruding into the clamping groove.

9. The pedestal structure for securing electrodes on a brain-machine interface device of claim 8, wherein, The clamping groove is provided with a first clamping groove and a second clamping groove arranged on the two sides of the boss, and the clamping buckle is provided with a first clamping buckle and a second clamping buckle respectively embedded into the first clamping groove and the second clamping groove.

10. A brain-machine interface device, comprising: The application relates to a base structure for a brain-computer interface device. The base lower part is provided with a first channel for communication with the inside of the brain-computer interface device. The base upper part is fixed to the base lower part and is provided with a second channel coaxial with the first channel. The base lower part is provided with a boss for supporting an electrode, and the first channel is formed in the surface of the boss. The base lower part is further provided with a groove in the surface of the brain-computer interface device, and the boss protrudes from the bottom of the groove. The base upper part is further provided with a connecting part protruding from the main body. The second channel is provided with an annular stop wall, and the cavity is formed between the stop wall and the boss. The connecting part is further provided with a thread on the outer wall. The diameter of the groove gradually decreases from the opening to the bottom. The base lower part is provided with a clamping groove in the groove, and the main body is provided with a clamping buckle protruding into the clamping groove. The clamping groove is provided with a first clamping groove and a second clamping groove arranged on the two sides of the boss, and the clamping buckle is provided with a first clamping buckle and a second clamping buckle respectively embedded into the first clamping groove and the second clamping groove. The application relates to a base structure for a brain-computer interface device. The base lower part is provided with a first channel for communication with the inside of the brain-computer interface device. The base upper part is fixed to the base lower part and is provided with a second channel coaxial with the first channel. The base lower part is provided with a boss for supporting an electrode, and the first channel is formed in the surface of the boss. The base lower part is further provided with a groove in the surface of the brain-computer interface device, and the boss protrudes from the bottom of the groove. The base upper part is further provided with a connecting part protruding from the main body. The second channel is provided with an annular stop wall, and the cavity is formed between the stop wall and the boss. The connecting part is further provided with a thread on the outer wall. The diameter of the groove gradually decreases from the opening to the bottom. The base lower part is provided with a clamping groove in the groove, and the main body is provided with a clamping buckle protruding into the clamping groove. The clamping groove is provided with a first clamping groove and a second clamping groove arranged on the two sides of the boss, and the clamping buckle is provided with a first clamping buckle and a second clamping buckle respectively embedded into the first clamping groove and the second clamping groove.

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