Electroencephalogram electrode cap

Abstract

The utility model relates to a kind of electroencephalogram electrode cap, including cap body and several electrode pieces arranged on cap body;Electrode piece includes shell and tubular electrode column, shell interior is provided with inner cavity, vertical injection pipe is provided in inner cavity, injection hole of injection pipe is located at the upper end surface of shell, the upper end of electrode column is movably sleeved on injection pipe, vertical through-hole, which is communicated with injection pipe, is formed in electrode column, spring is also sleeved on injection pipe;By left and right shaking shell, hair can be quickly dialled off by electrode column, and by spring, electrode column is always abutted to scalp, by conductive paste, electrode column and scalp are stably electrically connected, replace traditional adhesive fixed electrode piece, effectively avoid the influence that adhesive paste of hair is pasted complicated, unstable. Overall structure simplifies operation step, reduces the probability of electrode falling off, displacement in measurement process, reduces the time of adjustment and re-fixing, significantly improves operation efficiency and measurement stability.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to an electroencephalogram (EEG) electrode cap. Background Technology

[0002] Electroencephalography (EEG) is a key tool for diagnosing neurological diseases. It requires the use of electrodes for measurement. In neurology clinics, multiple electrode pads need to be attached to the head for an EEG. After all the electrode pads are attached, a cap is put on to further fix the electrode pads in place.

[0003] The process of attaching each electrode requires parting the patient's hair, which is tedious. Furthermore, hair inevitably comes into contact with the adhesive pads, and during measurement, patient movement and head rotation can cause the hair to shift, leading to electrode detachment, displacement, or poor contact. Therefore, long-term EEG monitoring (e.g., 2 hours or 24 hours) often requires more time for electrode adjustment, sometimes necessitating re-fixation and restarting the measurement, significantly reducing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electroencephalogram (EEG) electrode cap to overcome the shortcomings of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An electroencephalogram (EEG) electrode cap includes a cap body and several electrode components arranged on the cap body; the electrode components include a shell and a tubular electrode post, the shell has an inner cavity, an injection tube is vertically arranged in the inner cavity, the injection hole of the injection tube is located on the upper end face of the shell, the upper end of the electrode post is movably sleeved on the injection tube, the electrode post has a through hole vertically opened on it that communicates with the injection tube, a spring is also sleeved on the injection tube, the lower end of the spring is fixedly connected to the top of the electrode post, the upper end of the spring is fixedly connected to the peripheral wall of the inner cavity, and the lower end of the electrode post extends elastically from the extension hole on the lower end face of the shell; a wire groove is opened on the side wall of the shell, the wire groove communicates with the inner cavity, and the wire of the electrode post extends out from the wire groove.

[0006] The beneficial effects of this utility model are as follows: When in use, the cap is placed on the patient's head, the shell is pressed, and the shell is shaken left and right to make the electrode post part the hair and, under the action of the spring, come into contact with the scalp; then, conductive paste is injected through the injection hole, and the conductive paste comes into contact with the scalp along the injection tube and through hole, so that the electroencephalogram can be detected.

[0007] This technical solution allows hair to be quickly parted by shaking the housing left and right. A spring keeps the electrode posts in contact with the scalp, and conductive paste ensures a stable electrical connection between the electrode posts and the scalp. This replaces the traditional adhesive-fixed electrode pads and effectively avoids the cumbersome and unstable effects of adhesive-fixed electrode pads.

[0008] In addition, the wire groove design facilitates the extension and arrangement of wires, avoiding tangling; the overall structure simplifies the operation steps, reduces the probability of electrode detachment or displacement during measurement, reduces the time for adjustment and refixation, and significantly improves operation efficiency and measurement stability.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the cap body includes several horizontal and vertical ropes arranged perpendicularly and at intervals, two connectors, and a fixing strap detachably connected between the two connectors; the several horizontal ropes and several vertical ropes interweave to form a mesh structure, and the two ends of the horizontal ropes are respectively connected to the two connectors; the electrode is arranged at the intersection of the horizontal ropes and the vertical ropes, and the peripheral wall of the shell is provided with perpendicular horizontal through holes and vertical through holes, through which the horizontal ropes pass and the vertical ropes pass.

[0011] Furthermore, the transverse through holes and the longitudinal through holes are arranged in a staggered manner.

[0012] Furthermore, the housing includes a detachably connected upper shell and a lower shell; both the transverse through hole and the longitudinal through hole are formed by two semi-circular grooves respectively opened on the lower end face of the upper shell and the upper end face of the lower shell.

[0013] Furthermore, the upper shell and the lower shell are respectively provided with positioning grooves and positioning posts on their opposite surfaces, and the positioning posts and positioning grooves are interference fit together.

[0014] Furthermore, the connector is provided with several fixing holes, the horizontal rope is made of silicone, and the two ends of the horizontal rope pass through the fixing holes of the two connectors respectively, and are respectively interference-fitted with the fixing holes.

[0015] Furthermore, the injection hole is funnel-shaped.

[0016] Furthermore, the lower end face of the shell is a concave curved surface.

[0017] Furthermore, the lower end face of the shell is covered with a flexible layer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the electrode component of this utility model; Figure 3 This is an exploded structural diagram of the electrode component of this utility model; Figure 4 This is a cross-sectional structural diagram of the electrode component of this utility model.

[0019] The attached diagram lists the components represented by each number as follows: 1. Cap body; 11. Horizontal rope; 12. Vertical rope; 13. Connector; 131. Fixing hole; 14. Fixing strap; 2. Electrode component; 21. Upper shell; 211. Inner cavity; 212. Injection tube; 2121. Injection hole; 214. Wire groove; 215. Positioning post; 22. Lower shell; 221. Positioning groove; 222. Protrusion hole; 23. Spring; 24. Electrode post; 25. Horizontal through hole; 26. Vertical through hole; 27. Limiting ring. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figures 1-4 As shown in Embodiment 1, an electroencephalogram (EEG) electrode cap includes a cap body 1 and several electrode components 2 arranged on the cap body 1. The electrode component 2 includes a shell and a tubular electrode post 24. The shell has an inner cavity 211, and an injection tube 212 is vertically arranged in the inner cavity 211. The injection hole 2121 of the injection tube 212 is located on the upper end face of the shell. The upper end of the electrode post 24 is movably sleeved on the injection tube 212. The electrode post 24 has a through hole vertically opened on it, communicating with the injection tube 212. A spring 23 is also sleeved on the injection tube 212. The lower end of the spring 23 is fixedly connected to the top of the electrode post 24, and the upper end of the spring 23 is fixedly connected to the peripheral wall of the inner cavity 211. The lower end of the electrode post 24 extends elastically from the extension hole 222 on the lower end face of the shell. A wire groove 214 is opened on the side wall of the shell, and the wire groove 214 communicates with the inner cavity 211. The wire of the electrode post 24 extends out from the wire groove 214.

[0022] When in use, place the cap 1 on the patient's head, press the shell, and shake the shell left and right to make the electrode post 24 part the hair and, under the action of the spring 23, come into contact with the scalp; then inject conductive paste through the injection hole 2121. The conductive paste travels along the injection tube 212 and through the hole to contact the scalp, and then the electroencephalogram (EEG) can be performed.

[0023] This technical solution allows hair to be quickly pushed aside by shaking the housing left and right. The electrode post 24 is kept in contact with the scalp by the spring 23. The conductive paste ensures a stable electrical connection between the electrode post 24 and the scalp, replacing the traditional adhesive electrode pads. This effectively avoids the cumbersome and unstable effects of adhesive bonding of hair to the electrode pads and is well-suited for long-term (i.e., monitoring time is relatively long, such as 2 hours or 24 hours) EEG monitoring.

[0024] In addition, the wire groove 214 design facilitates the extension and arrangement of wires, avoiding tangling; the overall structure simplifies the operation steps, reduces the probability of electrode detachment or displacement during measurement, reduces the time for adjustment and refixation, and significantly improves operation efficiency and measurement stability.

[0025] In specific implementation, the lower end of the electrode post 24 is an arc surface or a spherical surface, and the through hole is located at the center of the arc surface or the spherical surface; in addition, a limiting ring 27 is connected to the top of the electrode post 24, and the maximum outer diameter of the limiting ring 27 is greater than the inner diameter of the protrusion hole 222, so as to prevent the electrode post 24 from completely protruding from the shell under the action of the spring 23.

[0026] Example 2 is a further improvement based on Example 1, and its details are as follows: The cap body 1 includes several horizontal ropes 11 and vertical ropes 12 arranged perpendicularly and at intervals, two connectors 13, and a fixing strap 14 detachably connected between the two connectors 13; the several horizontal ropes 11 and several vertical ropes 12 interweave to form a mesh structure, and the two ends of the horizontal ropes 11 are respectively connected to the two connectors 13; the electrode 2 is arranged at the intersection of the horizontal ropes 11 and the vertical ropes 12, and the peripheral wall of the shell is provided with perpendicular horizontal through holes 25 and vertical through holes 26, through which the horizontal ropes 11 pass and the vertical ropes 12 pass.

[0027] When the EEG electrode cap is worn, the fixing strap 14 is set at the chin to fix the overall position of the EEG electrode cap; in addition, the horizontal rope 11 and the vertical rope 12 are arranged at intervals to form a mesh structure, which facilitates the visualization and operation of the electrode post 24.

[0028] Example 3 is a further improvement based on Example 2, and its details are as follows: The transverse through hole 25 and the longitudinal through hole 26 are arranged in a staggered manner. The spatial staggered design avoids the direct overlap of the transverse rope 11 and the longitudinal rope 12 at the intersection point, reduces the frictional loss between the transverse rope 11 and the longitudinal rope 12, and extends the service life of the cap body 1.

[0029] Example 4 is a further improvement based on either Example 2 or Example 3, and its details are as follows: The housing includes a detachably connected upper shell 21 and a lower shell 22; the transverse through hole 25 and the longitudinal through hole 26 are both formed by two semi-circular grooves respectively opened on the lower end face of the upper shell 21 and the upper end face of the lower shell 22.

[0030] It facilitates the opening of the housing to install or remove the electrode 2 as needed; in specific implementation, in order to make the transverse through hole 25 and the longitudinal through hole 26 staggered vertically, a boss is provided on the upper end face of the lower shell 22, and one of the semi-circular grooves of the transverse through hole 25 or the longitudinal through hole 26 is set on the boss, and the other semi-circular groove is recessed on the lower end face of the upper shell 21 to correspond to the boss, thereby raising the transverse through hole 25 or the longitudinal through hole 26 upward.

[0031] Example 5 is a further improvement on Example 4, and its details are as follows: The upper shell 21 and the lower shell 22 are respectively provided with positioning grooves 221 and positioning posts 215 on their opposite surfaces, and the positioning posts 215 and positioning grooves 221 are interference-fitted to facilitate installation and fixation.

[0032] Example 6 is a further improvement based on Example 2, and its details are as follows: The connector 13 is provided with several fixing holes 131. The horizontal rope 11 is made of silicone. The two ends of the horizontal rope 11 pass through the fixing holes 131 of the two connectors 13 respectively and are respectively interference-fitted with the fixing holes 131.

[0033] The length of each horizontal rope 11 can be adjusted according to the actual needs of the patient, such as the patient's head shape, to ensure that the electrode 2 on each horizontal rope 11 can fit well against the patient's scalp. When it is necessary to adjust the length of the horizontal rope 11, simply pull the horizontal rope 11 towards both ends of the fixing hole 131 to make the part of the horizontal rope 11 inside the fixing hole 131 thinner, thereby releasing the interference fit state, which facilitates adjustment. After adjusting to the target length, release the horizontal rope 11, and the original diameter will be restored due to the inherent properties of the silicone material, so that the interference fit can be restored and fixed again. In specific implementation, the vertical rope 12 can also be made of silicone material.

[0034] Example 7 is a further improvement based on Example 1, and its details are as follows: The injection hole 2121 of the injection tube 212 is funnel-shaped. The funnel-shaped inlet enlarges the diameter of the injection tube 212, facilitating the rapid injection of conductive paste.

[0035] Example 8 is a further improvement based on Example 1, and its details are as follows: The lower end of the shell is concave. This concave surface allows it to better conform to the scalp surface, resulting in a more comfortable fit.

[0036] Example 9 is a further improvement based on Example 1, and its details are as follows: The lower end face of the housing is covered with a flexible layer. This flexible layer reduces rigid contact and pressure between the electrode housing and the scalp when the patient is lying down, improving patient comfort. In practice, the flexible layer can be silicone or sponge.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electroencephalogram (EEG) electrode cap, characterized in that, The device includes a cap body (1) and several electrode components (2) arranged on the cap body (1); each electrode component (2) includes a housing and a tubular electrode post (24). The housing has an inner cavity (211) inside, and an injection tube (212) is vertically arranged inside the inner cavity (211). The injection hole (2121) of the injection tube (212) is located on the upper end face of the housing. The upper end of the electrode post (24) is movably sleeved on the injection tube (212). The electrode post (24) has a vertical opening that connects to the injection tube (212). The injection tube (212) is fitted with a spring (23), the lower end of the spring (23) is fixedly connected to the top of the electrode post (24), the upper end of the spring (23) is fixedly connected to the circumferential wall of the inner cavity (211), and the lower end of the electrode post (24) extends elastically from the protrusion hole (222) on the lower end face of the housing; a wire groove (214) is opened on the side wall of the housing, the wire groove (214) is connected to the inner cavity (211), and the wire of the electrode post (24) extends out from the wire groove (214).

2. The EEG electrode cap according to claim 1, characterized in that, The cap body (1) includes several perpendicular and spaced horizontal ropes (11) and vertical ropes (12), two connectors (13), and a fixing strap (14) detachably connected between the two connectors (13); the several horizontal ropes (11) and several vertical ropes (12) interweave to form a mesh structure, and the two ends of the horizontal ropes (11) are respectively connected to the two connectors (13); the electrode (2) is arranged at the intersection of the horizontal ropes (11) and the vertical ropes (12), and the peripheral wall of the shell is provided with perpendicular horizontal through holes (25) and vertical through holes (26), the horizontal ropes (11) pass through the horizontal through holes (25), and the vertical ropes (12) pass through the vertical through holes (26).

3. The EEG electrode cap according to claim 2, characterized in that, The transverse through hole (25) and the longitudinal through hole (26) are arranged in a staggered manner.

4. An EEG electrode cap according to any one of claims 2 or 3, characterized in that, The housing includes a detachably connected upper shell (21) and a lower shell (22); the transverse through hole (25) and the longitudinal through hole (26) are both formed by two semi-circular grooves respectively opened on the lower end face of the upper shell (21) and the upper end face of the lower shell (22).

5. The EEG electrode cap according to claim 4, characterized in that, The upper shell (21) and the lower shell (22) are respectively provided with positioning grooves (221) and positioning posts (215) on their opposite surfaces, and the positioning posts (215) and the positioning grooves (221) are interference fit.

6. The EEG electrode cap according to claim 2, characterized in that, The connector (13) is provided with a plurality of fixing holes (131). The transverse rope (11) is made of silicone. The two ends of the transverse rope (11) pass through the fixing holes (131) of the connector (13) respectively and are respectively press-fitted with the fixing holes (131).

7. The EEG electrode cap according to claim 1, characterized in that, The injection hole (2121) is funnel-shaped.

8. The EEG electrode cap according to claim 1, characterized in that, The lower end face of the shell is a concave curved surface.

9. An EEG electrode cap according to claim 1, characterized in that, The lower end face of the housing is covered with a flexible layer.

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