Electroencephalogram cap capable of adjusting electrode compression degree

Abstract

The utility model relates to the technical field of electroencephalogram measuring devices, in particular to an electroencephalogram cap capable of adjusting the electrode pressing degree, which comprises an electroencephalogram cap supporting structure, an electrode pressing structure, an electrode pressing structure, a tensioning area, an electrode pressing structure, an electrode pressing structure, an electrode pressing structure and an electrode pressing structure, the first end of each electrode mounting band is connected to the electroencephalogram cap supporting structure, and the second end of each electrode mounting band is connected to the tensioning area of the electroencephalogram cap supporting structure. According to the electroencephalogram cap provided by the utility model, all the electrodes are carried through the plurality of electrode mounting belts, one ends of the plurality of electrode mounting belts are connected to the surface of the shaft piece together through the pull rope, and the tightness of the electrode mounting belts can be wound and released by controlling the rotation of the shaft piece, so that the pressure of the electrodes on the scalp is larger or smaller, and therefore, the electrode mounting belts are more convenient to use. The pressure needed when the electrode collects the electroencephalogram signal can be provided by screwing the shaft piece, the tightness degree can be kept when the pressure of the electrode on the scalp is appropriate, and adjustment is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalography (EEG) measurement device technology, and more specifically to an EEG cap with adjustable electrode pressure. Background Technology

[0002] Dry EEG caps work based on electroencephalography (EEG) technology. When neurons in the brain transmit changes in electrical potential through synapses, they generate an electric field. This electric field is recorded by electrodes placed on the scalp, thus converting it into graphical brainwaves. Dry EEG caps, through direct contact between their electrodes and the scalp, can capture these electrical activities and convert them into analyzable signals.

[0003] To ensure accurate recording of EEG signals, the electrodes of the EEG cap need to apply a certain amount of pressure to the scalp. Furthermore, because different users have different head sizes, the pressure of the EEG cap needs to be adjusted for each user. Currently, the structure of the EEG cap that applies pressure to the scalp is cumbersome to use, and the pressure adjustment process is also quite complicated. Utility Model Content

[0004] To address the technical problems existing in current EEG caps, this utility model proposes an EEG cap with adjustable electrode pressure, comprising:

[0005] The EEG cap support structure is constructed in a ring shape with a notch at the top, and a tensioning area is provided on one side of the EEG cap support structure.

[0006] Multiple electrode mounting strips, each electrode mounting strip having a first end connected to the EEG cap support structure and a second end connected to the tensioning area of ​​the EEG cap support structure, and the electrode mounting strip having multiple electrode mounting slots;

[0007] Multiple electrodes are connected to the electrode mounting slot;

[0008] A tension adjustment component is connected to the tensioning area of ​​the EEG cap support structure;

[0009] The electrode mounting strip has a rope-shaped connecting structure at its second end. The rope-shaped connecting structure is connected to the tension adjustment component. The tension adjustment component is configured to rotate and remain in the target position. When the tension adjustment component rotates, it can wind / release the rope-shaped connecting structure to adjust the distance between the electrode mounting strip and the tension area. When the tension adjustment component remains in the current position, the distance between the electrode mounting strip and the tension area is fixed.

[0010] Preferably, the tensioning area is located on the rear side of the EEG cap support structure, and the first ends of the plurality of electrode mounting straps are connected to the front side of the EEG cap support structure.

[0011] Preferably, the electrode mounting strip is constructed as an arc-shaped strip structure that can conform to the user's head contour.

[0012] Preferably, each of the electrode mounting strips has a ring-shaped connecting structure at its second end, and all of the ring-shaped connecting structures are connected to the rope-shaped connecting structure.

[0013] Preferably, the rope-shaped connection structure includes an inelastic rope structure.

[0014] Preferably, the electrode mounting groove is an oblong hole, and the electrode includes an electrode body and an electrode nut. The electrode nut is detachably connected to the electrode body, so that the electrode body can be connected to or separated from the electrode mounting groove.

[0015] Preferably, the tensioning area of ​​the EEG cap support structure includes an outer shell and an inner shell. The tension adjustment component includes a knob, a roller structure, and a guide shaft. The roller structure has a fixing hole for connecting a rope-shaped connecting structure. The guide shaft is connected to the inner shell, and the knob is connected to the outer shell. The roller structure is located between the outer shell and the inner shell. When the knob is rotated, the roller structure can wind around the rope-shaped connecting structure.

[0016] Preferably, the inner wall of the outer casing is provided with a first toothed disc, the scroll structure is provided with a second toothed disc on one side of the first toothed disc, an elastic element is provided between the guide shaft and the inner casing, and has a tendency to make the second toothed disc and the first toothed disc fit together. When the knob can be pressed axially, the second toothed disc is disengaged from the first toothed disc.

[0017] Preferably, the scroll structure has a limiting disc on one side facing the guide shaft, and the elastic element is located between the limiting disc and the inner shell.

[0018] Preferably, the inner wall of the inner housing is provided with a bearing seat, and the guide shaft is inserted into the bearing seat.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] The EEG cap proposed in this utility model uses multiple electrode mounting straps to carry all the electrodes. One end of each electrode mounting strap is connected to the surface of a shaft via a pull cord. By controlling the rotation of the shaft, the tension of the electrode mounting straps can be tightened and loosened, allowing the pressure of the electrodes on the scalp to be greater or less. Therefore, by twisting the shaft, the pressure required for the electrodes to collect EEG signals can be provided, and the tension can be maintained at the appropriate level when the pressure of the electrodes on the scalp is suitable, making adjustment convenient and quick. Attached Figure Description

[0021] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the EEG cap with adjustable electrode clamping degree shown in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the electrode shown in this utility model;

[0024] Figure 3 This is a schematic diagram showing the connection between the tension adjustment component and the rope-shaped connection structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the tension adjustment component shown in this utility model;

[0026] Figure 5 This is a dynamic schematic diagram of the rotating knob adjusting the tightness of the electrode mounting band, as shown in this utility model. Detailed Implementation

[0027] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0028] Combination Figure 1 As shown, this utility model proposes an EEG cap with adjustable electrode pressure, including an EEG cap support structure 10, multiple electrode mounting straps 20, multiple electrodes 30, and a tension adjustment component 40. The tension adjustment component 40 can adjust the tension of all electrode mounting straps 20 at one time and simultaneously, so that all electrodes 30 can be adjusted simultaneously to achieve quick adjustment.

[0029] like Figure 1 As shown, the EEG cap support structure 10 is constructed in a ring shape with a notch at the top, and a tension area 10a is provided on one side of the EEG cap support structure 10.

[0030] Furthermore, the first end of each of the multiple electrode mounting straps 20 is connected to the EEG cap support structure 10, and the second end is connected to the tensioning area 10a of the EEG cap support structure 10. Thus, the main structure formed by the electrode mounting straps 20 and the EEG cap support structure 10 resembles a helmet shape, can be worn on the user's head, and the electrode mounting straps 20 are non-fixed, non-rigid structures, allowing for adjustment of tightness and adherence to the user's scalp.

[0031] The electrode mounting strip 20 is provided with multiple electrode mounting slots 201, and multiple electrodes 30 are connected to the electrode mounting slots 201.

[0032] In this way, electrodes 30 can be distributed in the corresponding areas of the head and the electroencephalogram (EEG) signals of the target area can be collected.

[0033] Furthermore, the tension adjustment component 40 is connected to the tensioning area 10a of the EEG cap support structure 10, wherein the second end of the electrode mounting band 20 is provided with a rope-shaped connecting structure 22, which is connected to the tension adjustment component 40.

[0034] The tension adjustment component 40 is configured to rotate and remain in the target position.

[0035] Thus, when the tension adjustment component 40 rotates, it can rewind or release the rope-shaped connecting structure 22, adjusting the distance between the electrode mounting belt 20 and the tensioning area 10a. In particular, when the tension adjustment component 40 rotates and releases the rope-shaped connecting structure 22, the second end of the electrode mounting belt 20 moves away from the tensioning area 10a due to its elasticity. At this time, each electrode 30 moves relatively outward, and the inner contour volume of each electrode 30 is larger, which is a looser adjustment. When the tension adjustment component 40 rotates and rewinds the rope-shaped connecting structure 22, the second end of the electrode mounting belt 20 moves closer to the tensioning area 10a. At this time, each electrode 30 moves relatively inward, and the inner contour volume of each electrode 30 is smaller, which is a tighter adjustment.

[0036] Once the tension is properly adjusted, the tension adjustment component 40 can remain in its current position, thus fixing the distance between the electrode mounting strip 20 and the tension area 10a.

[0037] Optionally, a tensioning region 10a is provided on the rear side of the EEG cap support structure 10, and the first ends of the plurality of electrode mounting straps 20 are connected to the front side of the EEG cap support structure 10.

[0038] That is, when the user wears the EEG cap, the tension area 10a is located on the back of the head, i.e. the back of the head, and the first end of the multiple electrode mounting band 20 is located on the front of the head, i.e. the forehead.

[0039] By designing multiple electrode mounting straps 20 in a front-to-back distribution direction, fewer electrode mounting straps 20 can be used to cover the head, thus reducing the number of electrode mounting straps 20 and facilitating the overall adjustment of the tightness of all electrodes 30.

[0040] In an optional embodiment, the electrode mounting strip 20 is configured as an arc-shaped strip structure that conforms to the contours of the user's head.

[0041] Understandably, when one end of the electrode mounting band 20 is tightened, the electrode mounting band 20 will deform to fit the user's head and adapt to fit the contour of the user's head so that each electrode 30 is in close contact with the scalp.

[0042] Optionally, each electrode mounting strip 20 has an annular connecting structure 21 at its second end, and all annular connecting structures 21 are connected to rope-shaped connecting structures 22. The annular connecting structure 21 can be a rubber ring, a nylon ring, or a ring structure made of synthetic fibers.

[0043] Furthermore, the rope-like connection structure 22 includes an inelastic rope structure. Since the rope-like connection structure 22 is subjected to tensile stress when adjusting the tension, its inelastic nature helps to maintain accurate tension adjustment.

[0044] Furthermore, the electrode mounting groove 201 is an oblong hole, designed to allow the electrode 30 to be adjusted to a suitable position within the oblong hole.

[0045] Combination Figure 2 As shown, electrode 30 includes electrode body 31 and electrode nut 32. Electrode nut 32 is detachably connected to electrode body 31, so that electrode body 31 can be connected to electrode mounting groove 201 or separated from electrode mounting groove 201.

[0046] Specifically, when installing the electrode 30, after placing the electrode body 31 in the predetermined position of the electrode mounting groove 201, the electrode nut 32 is tightened onto the electrode body 31 to fix the electrode body 31 to the electrode mounting strip 20.

[0047] Combination Figure 3 As shown, the tensioning area 10a of the EEG cap support structure 10 includes an outer shell 101 and an inner shell 102. The tension adjustment component 40 includes a knob 41, a roller structure 43, and a guide shaft 45. The roller structure 43 is provided with a fixing hole 431 for connecting the rope-shaped connecting structure 22. The guide shaft 45 is connected to the inner shell 102, and the knob 41 is connected to the outer shell 101. The roller structure 43 is located between the outer shell 101 and the inner shell 102. When the knob 41 is rotated, the roller structure 43 can wind the rope-shaped connecting structure 22.

[0048] Specifically, when the knob 41 is turned, the rope-shaped connecting structure 22 will be wound around the surface of the spool structure 43. The rotation will cause the rope-shaped connecting structure 22 to be wound up and released, so that the electrode mounting strip 20 is tightened or released.

[0049] It should be understood that when knob 41 is rotated to a certain angle, knob 41 is subjected to tension from the rope-like connection structure 22. In order to ensure that knob 41 is fixed in the current position, combined with... Figure 3 and Figure 4As shown, the inner wall of the outer shell 101 is provided with a first toothed disc 101a, and the scroll structure 43 is provided with a second toothed disc 42 on one side of the first toothed disc 101a. An elastic element 46 is provided between the guide shaft 45 and the inner shell 102, and has the tendency to make the second toothed disc 42 and the first toothed disc 101a fit together. When the knob 41 can be pressed axially, the second toothed disc 42 is disengaged from the first toothed disc 101a.

[0050] Thus, when the knob 41 is pressed, the second gear 42 and the first gear 101a separate. At this time, the knob 41 is not axially limited and can rotate freely. When the knob 41 is released, the knob 41 is rebounded by the elastic element 46. At this time, the second gear 42 and the first gear 101a are in contact, and the knob 41 is axially limited and cannot rotate freely, remaining in the current position.

[0051] In an optional embodiment, the roll structure 43 is provided with a limiting disk 44 on the side facing the guide shaft 45, and the elastic element 46 is located between the limiting disk 44 and the inner housing 102.

[0052] Specifically, a shim 441 is provided between the limiting plate 44 and the elastic element 46. The elastic element 46 can be a linear spring, which is located on one side of the shim 441.

[0053] Specifically, the inner wall of the inner housing 102 is provided with a bearing seat 102a, and the guide shaft 45 is inserted into the bearing seat 102a. A linear spring is sleeved on the outer wall of the guide shaft 45 and abuts against the end face of the bearing seat 102a.

[0054] Combination Figures 3 to 5 As shown, in a specific embodiment, to increase the pressure, press the knob 41 to disengage the second toothed disc 42 from the first toothed disc 101a, then rotate the knob 41 to tighten the winding structure 43 and release the rope-shaped connecting structure 22, thus tightening the electrode mounting band 20 and increasing the pressure of the electrode 30 on the scalp. Releasing the knob 41 allows the elastic element 46 to re-engage the second toothed disc 42 with the first toothed disc 101a, locking the components in place. To decrease the pressure, press the knob 41 and rotate it in the opposite direction, then repeat the above steps. This method of adjusting the pressure of the electrode 30 on the scalp is convenient and quick.

[0055] In conjunction with the above embodiments, the EEG cap proposed by this utility model carries all the electrodes through multiple electrode mounting straps. One end of each electrode mounting strap is connected to the surface of a shaft via a pull cord. By controlling the rotation of the shaft, the tension of the electrode mounting straps can be tightened and loosened, allowing the pressure of the electrodes on the scalp to be greater or less. Therefore, by twisting the shaft, the pressure required for the electrodes to collect EEG signals can be provided, and the tension can be maintained at the appropriate level when the pressure of the electrodes on the scalp is suitable, making adjustment convenient and quick.

[0056] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An EEG cap with adjustable electrode pressure, characterized in that, include: The EEG cap support structure (10) is constructed in a ring shape with a notch at the top, and a tension area (10a) is provided on one side of the EEG cap support structure (10); Multiple electrode mounting strips (20), each electrode mounting strip (20) has a first end connected to the EEG cap support structure (10) and a second end connected to the tension area (10a) of the EEG cap support structure (10), and the electrode mounting strip (20) is provided with multiple electrode mounting slots (201); Multiple electrodes (30) are connected to the electrode mounting slots (201); A tension adjustment component (40) is connected to the tensioning area (10a) of the EEG cap support structure (10); The electrode mounting strip (20) has a rope-shaped connecting structure (22) at its second end. The rope-shaped connecting structure (22) is connected to the tension adjustment component (40). The tension adjustment component (40) is configured to rotate and remain in the target position. When the tension adjustment component (40) rotates, it can rewind / release the rope-shaped connecting structure (22) to adjust the distance between the electrode mounting strip (20) and the tension area (10a). When the tension adjustment component (40) remains in the current position, the distance between the electrode mounting strip (20) and the tension area (10a) is fixed.

2. The EEG cap with adjustable electrode pressure according to claim 1, characterized in that, The tensioning area (10a) is located on the rear side of the EEG cap support structure (10), and the first ends of the plurality of electrode mounting straps (20) are connected to the front side of the EEG cap support structure (10).

3. The EEG cap with adjustable electrode pressure according to claim 1, characterized in that, The electrode mounting strip (20) is constructed as an arc-shaped strip structure that conforms to the contours of the user's head.

4. The EEG cap with adjustable electrode pressure according to claim 1, characterized in that, Each of the electrode mounting strips (20) has an annular connecting structure (21) at its second end, and all of the annular connecting structures (21) are connected to the rope connecting structure (22).

5. The EEG cap with adjustable electrode pressure according to claim 1, characterized in that, The rope-shaped connection structure (22) includes an inelastic rope structure.

6. The EEG cap with adjustable electrode pressure according to claim 1, characterized in that, The electrode mounting groove (201) is an oblong hole. The electrode (30) includes an electrode body (31) and an electrode nut (32). The electrode nut (32) is detachably connected to the electrode body (31), so that the electrode body (31) can be connected to or separated from the electrode mounting groove (201).

7. The EEG cap with adjustable electrode pressure according to any one of claims 1-6, characterized in that, The tensioning area (10a) of the EEG cap support structure (10) includes an outer shell (101) and an inner shell (102). The tension adjustment component (40) includes a knob (41), a roller structure (43), and a guide shaft (45). The roller structure (43) is provided with a fixing hole (431) for connecting the rope-shaped connecting structure (22). The guide shaft (45) is connected to the inner shell (102). The knob (41) is connected to the outer shell (101). The roller structure (43) is located between the outer shell (101) and the inner shell (102). When the knob (41) is rotated, the roller structure (43) can wind the rope-shaped connecting structure (22).

8. The EEG cap with adjustable electrode pressure according to claim 7, characterized in that, The inner wall of the outer shell (101) is provided with a first toothed disc (101a), and the scroll structure (43) is provided with a second toothed disc (42) on the side facing the first toothed disc (101a). An elastic element (46) is provided between the guide shaft (45) and the inner shell (102), and has the tendency to make the second toothed disc (42) and the first toothed disc (101a) fit together. When the knob (41) can be pressed axially, the second toothed disc (42) is disengaged from the first toothed disc (101a).

9. The EEG cap with adjustable electrode pressure according to claim 8, characterized in that, The scroll structure (43) has a limiting disk (44) on one side facing the guide shaft (45), and the elastic element (46) is located between the limiting disk (44) and the inner shell (102).

10. The EEG cap with adjustable electrode pressure according to claim 7, characterized in that, The inner wall of the inner housing (102) is provided with a bearing seat (102a), and the guide shaft (45) is inserted into the bearing seat (102a).

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