Electrode waterproof structure applied to brain-computer

Abstract

The utility model discloses an electrode waterproof structure applied to a brain machine, which comprises a shell, an electrode body and a buckle mechanism, the shell is provided with an interface, the electrode body comprises an electrode panel and an electrode column, the buckle mechanism comprises a female buckle, a male buckle, a first sealing ring and a second sealing ring, and the female buckle and the male buckle are connected through a clamping groove and a convex buckle structure. Therefore, the electrode body is assembled through the double sealing rings and the rotary buckle structure, the sealing performance is good, and assembly and disassembly are convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical instrument technology, and in particular to a waterproof electrode structure for use in brain-computer interfaces. Background Technology

[0002] Brain-computer interfaces (BCIs) are machines used to collect electroencephalogram (EEG) signals. Electrodes are mounted on the casing of a BCI. Because the electrodes need to contact conductive cotton soaked in conductive fluid inside the casing, they must be assembled in a sealed manner. Currently, electrodes are mostly sealed using adhesive, but this process is inconvenient and makes electrode replacement difficult. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof electrode structure for brain-computer interfaces. The electrode body is assembled using a double sealing ring and a snap-fit ​​structure, which provides good sealing and is easy to assemble and disassemble.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A waterproof electrode structure for use in brain-computer interfaces includes a housing, electrode bodies, and a snap-fit ​​mechanism.

[0006] The housing has an interface;

[0007] The electrode body includes an electrode panel and an electrode post;

[0008] The electrode body is detachably assembled to the interface via a snap-fit ​​mechanism;

[0009] The snap-fit ​​mechanism includes a female snap, a male snap, a first sealing ring, and a second sealing ring;

[0010] The female buckle includes a first sidewall, a first top wall, and a first flange. The first sidewall and the first top wall form a first cavity that can accommodate an electrode panel. The first top wall is provided with a first through hole through which an electrode post passes. The first flange is located on the top of the first sidewall. The first sidewall is provided with a slot.

[0011] The male buckle includes an outer side wall and an inner side wall, which together form a second cavity that can accommodate the first side wall. The bottom of the inner side wall is provided with a second through hole, and the outer side wall is provided with a protruding buckle.

[0012] The first sealing ring is located on the upper surface of the edge of the interface, and the first flange is located above the first sealing ring;

[0013] The second sealing ring is located between the first top wall and the electrode panel;

[0014] When the slot is connected to the buckle, the first flange abuts against the first sealing ring, the top of the outer side wall abuts against the lower surface of the edge of the interface, and the top of the inner side wall abuts against the electrode panel.

[0015] In some embodiments, the slot includes a vertical slot and a horizontal slot, and the end of the horizontal slot near the vertical slot has a protrusion.

[0016] In some implementations, there are three slots and three corresponding buckles.

[0017] In some embodiments, the upper surface of the edge of the interface is provided with a first annular groove that mates with the first sealing ring.

[0018] In some embodiments, the lower surface of the edge of the interface is provided with a first boss that mates with the outer wall.

[0019] In some embodiments, the lower surface of the first top wall is provided with a second annular groove that mates with the second sealing ring.

[0020] In some embodiments, the first sealing ring and the second sealing ring are made of silicone.

[0021] In some embodiments, the cross-sectional diameter of the first sealing ring is smaller than the cross-sectional diameter of the second sealing ring.

[0022] In some embodiments, the outer surface of the outer sidewall is provided with axially extending stripes.

[0023] The advantages of this utility model are: the electrode body is assembled by a double sealing ring and a snap-fit ​​structure, which has good sealing performance and is convenient for assembly and disassembly. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a waterproof electrode structure for use in brain-computer interfaces according to this utility model;

[0025] Figure 2 This is an exploded view of a waterproof electrode structure for use in brain-computer interfaces according to this invention.

[0026] Figure 3 This is a partial cross-sectional view of a waterproof electrode structure for use in brain-computer interfaces according to this utility model;

[0027] Figure 4 This is a structural diagram of the female buckle of this utility model;

[0028] Figure 5 This is one of the structural diagrams of the male buckle of this utility model;

[0029] Figure 6 This is the second structural diagram of the male buckle of this utility model;

[0030] Wherein: 1-Housing; 10-Interface; 11-First annular groove; 12-First boss; 2-Electrode body; 21-Electrode panel; 22-Electrode post; 3-Snap-fit ​​mechanism; 31-Female buckle; 310-First cavity; 311-First sidewall; 312-First top wall; 3121-Second annular groove; 3122-Third annular groove; 313-First through hole; 314-First flange; 315-Snap groove; 3151-Vertical groove; 3152-Horizontal groove; 3153-Protrusion; 32-Male buckle; 320-Second cavity; 321-Outer sidewall; 3210-Stripes; 322-Inner sidewall; 323-Protruding buckle; 324-Second through hole; 33-First sealing ring; 34-Second sealing ring. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] refer to Figures 1 to 6 A waterproof electrode structure for use in brain-computer interfaces includes a housing 1, an electrode body 2, and a snap-fit ​​mechanism 3.

[0033] The housing 1 is provided with an interface 10, which is roughly circular;

[0034] Electrode body 2 includes electrode panel 21 and electrode post 22;

[0035] The electrode body 2 is detachably assembled to the interface 10 via the snap-fit ​​mechanism 3;

[0036] The latching mechanism 3 includes a female latch 31, a male latch 32, a first sealing ring 33, and a second sealing ring 34; wherein, the female latch 31 is generally cylindrical, and the male latch 32 is generally cylindrical or hemispherical.

[0037] refer to Figure 3 and Figure 4 The female buckle 31 includes a first sidewall 311, a first top wall 312, and a first flange 314. The first sidewall 311 and the first top wall 312 form a first cavity 310 that can accommodate the electrode panel 21. The first top wall 312 is provided with a first through hole 313, through which the electrode post 22 passes. The first flange 314 is provided on the top of the first sidewall 311. The first sidewall 311 is provided with a slot 315.

[0038] refer to Figure 3 and Figure 5 The male buckle 32 includes an outer side wall 321 and an inner side wall 322. The outer side wall 321 and the inner side wall 322 form a second cavity 320 that can accommodate the first side wall 311. The bottom of the inner side wall 322 is provided with a second through hole 324. The outer side wall 321 is provided with a protruding buckle 323. The protruding buckle 323 can be provided at the top of the outer side wall 321 and the protruding buckle 323 is in an inward protruding shape.

[0039] The first sealing ring 33 is disposed on the upper surface of the edge of the interface 10, and the first flange 314 is disposed above the first sealing ring 33;

[0040] The second sealing ring 34 is disposed between the first top wall 312 and the electrode panel 21;

[0041] When the slot 315 is connected to the buckle 323, the first flange 314 abuts against the first sealing ring 33, the top of the outer wall 321 abuts against the lower surface of the edge of the interface 10, and the top of the inner wall 322 abuts against the electrode panel 21.

[0042] Therefore, by utilizing the elasticity of the first sealing ring 33, when the slot 315 is connected to the protrusion 323, the female buckle 31 and the male buckle 32 form a clamping interface 10 structure, which causes the first flange 314 of the female buckle 31 to press the first sealing ring 33, thereby achieving a sealed connection between the female buckle 31 and the interface 10 of the housing 1.

[0043] Simultaneously, when the slot 315 connects with the buckle 323, the top of the inner wall 322 abuts against the electrode panel 21, causing the electrode panel 21 to press against the second sealing ring 34, thereby achieving a sealed connection between the electrode body 2 and the female buckle 31, and a sealed connection between the electrode body 2 and the interface 10. This ensures that the electrode post 22 can extend into the interior of the housing 1 and contact the conductive cotton, while the conductive liquid cannot leak outward due to the obstruction of the first sealing ring 33 and the second sealing ring 34.

[0044] The electrode body 2 is sealed to the interface 10 through a double sealing ring structure, which has a good sealing effect. It is also fixed by the snap-fit ​​mechanism 3, which realizes a detachable structure, making assembly and disassembly convenient and facilitating the replacement of the electrode body 2.

[0045] refer to Figure 4 The slot 315 includes a vertical slot 3151 and a horizontal slot 3152. The end of the horizontal slot 3152 near the vertical slot 3151 is provided with a protrusion 3153.

[0046] The slot 315 is roughly L-shaped. The vertical slot 3151 extends axially along the first sidewall 311 and has an open structure, while the horizontal slot 3152 extends circumferentially along the first sidewall 311. During assembly, the protruding buckle 323 enters the vertical slot 3151 from the open end, moves axially to the end of the vertical slot 3151, and then rotates circumferentially into the horizontal slot 3152 until it reaches the end of the horizontal slot 3152, achieving a rotary fastening. The protrusion 3153 serves as a limit, restricting the position of the protruding buckle 323 and preventing it from easily disengaging from the horizontal slot 3152, thus achieving a certain self-locking function. Furthermore, under the reaction force of the second sealing ring 34, it can cause the protruding buckle 323 to lock tightly at the end of the horizontal slot 3152.

[0047] The slot 315 and the buckle 323 are each provided with three corresponding slots, for example, three slots are provided at 120 degrees apart, to improve the stability of the fastening, that is, to improve the connection stability between the female buckle 31 and the male buckle 32.

[0048] refer to Figure 2 and Figure 3 The upper surface of the edge of the interface 10 is provided with a first annular groove 11 that mates with the first sealing ring 33, thereby facilitating the positioning and assembly of the first sealing ring 33.

[0049] refer to Figure 3 The lower surface of the edge of the interface 10 is provided with a first protrusion 12 that mates with the outer wall 321. Thus, when the slot 315 is connected to the buckle 323, the top of the outer wall 321 abuts against the first protrusion 12, and the provision of the first protrusion 12 makes the outer wall 321 abut against the interface 10 more effectively.

[0050] refer to Figure 3 The lower surface of the first top wall 312 is provided with a second annular groove 3121 that mates with the second sealing ring 34, thereby facilitating the positioning and assembly of the second sealing ring 34. The upper surface of the first top wall 312 is provided with a third annular groove 3122.

[0051] The first sealing ring 33 and the second sealing ring 34 can be made of silicone or other rubber.

[0052] The cross-sectional diameter of the first sealing ring 33 is smaller than that of the second sealing ring 34, meaning the second sealing ring 34 is thicker and has a larger elastic deformation. This helps to compensate for the tolerances during assembly and ensures that the inner sidewall 322 can effectively contact the electrode panel 21. It also helps to apply a certain amount of pressure to the second sealing ring 34 when the buckle 323 rotates and engages with the slot 315.

[0053] The outer surface of the outer wall 321 is provided with axially extending stripes 3210. The stripes 3210 facilitate the rotation of the male buckle 32, thereby facilitating the rotation of the male buckle 323 and its engagement with the slot 315. Of course, it also enhances the aesthetics.

[0054] The outer wall 321 is curved or at least partially curved, for example, the bottom of the outer wall 321 is curved, which increases the aesthetic appeal and reduces the space occupied.

[0055] The above description only discloses some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A waterproof electrode structure for use in brain-computer interfaces, characterized in that, It includes a housing (1), an electrode body (2), and a snap-fit ​​mechanism (3); The housing (1) is provided with an interface (10); The electrode body (2) includes an electrode panel (21) and an electrode post (22); The electrode body (2) is detachably assembled to the interface (10) via a snap-fit ​​mechanism (3); The latching mechanism (3) includes a female latch (31), a male latch (32), a first sealing ring (33), and a second sealing ring (34); The female buckle (31) includes a first sidewall (311), a first top wall (312), and a first flange (314). The first sidewall (311) and the first top wall (312) form a first cavity (310) capable of accommodating the electrode panel (21). The first top wall (312) is provided with a first through hole (313). The electrode post (22) passes through the first through hole (313). The first flange (314) is located on the top of the first sidewall (311). The first sidewall (311) is provided with a slot (315). The male buckle (32) includes an outer side wall (321) and an inner side wall (322). The outer side wall (321) and the inner side wall (322) form a second cavity (320) that can accommodate the first side wall (311). The bottom of the inner side wall (322) is provided with a second through hole (324), and the outer side wall (321) is provided with a protruding buckle (323). The first sealing ring (33) is disposed on the upper surface of the edge of the interface (10), and the first flange (314) is disposed above the first sealing ring (33); The second sealing ring (34) is disposed between the first top wall (312) and the electrode panel (21); When the slot (315) is connected to the buckle (323), the first flange (314) abuts against the first sealing ring (33), the top of the outer sidewall (321) abuts against the lower surface of the edge of the interface (10), and the top of the inner sidewall (322) abuts against the electrode panel (21).

2. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The slot (315) includes a vertical slot (3151) and a horizontal slot (3152), and the horizontal slot (3152) has a protrusion (3153) at the end near the vertical slot (3151).

3. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The card slot (315) and the buckle (323) are each provided in three parts.

4. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The upper surface of the edge of the interface (10) is provided with a first annular groove (11) that mates with the first sealing ring (33).

5. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The lower surface of the edge of the interface (10) is provided with a first boss (12) that mates with the outer wall (321).

6. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The lower surface of the first top wall (312) is provided with a second annular groove (3121) that cooperates with the second sealing ring (34).

7. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The first sealing ring (33) and the second sealing ring (34) are made of silicone.

8. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The cross-sectional diameter of the first sealing ring (33) is smaller than that of the second sealing ring (34).

9. The waterproof electrode structure for brain-computer interfaces according to claim 1, characterized in that, The outer surface of the outer wall (321) is provided with axially extending stripes (3210).

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