A type of fixed cap

Abstract

This utility model discloses a fixing cap, relating to the field of brain electrode fixing technology, and aims to solve the technical problem that the use of tape and mesh caps to fix disc electrodes in the prior art may cause the disc electrodes to change position, thereby affecting the accuracy of data acquisition. It includes a strap worn over the patient's head, with several first straps having several positioning clamping devices on them. Each positioning clamping device corresponds one-to-one with a brain electrode position on the head. Each positioning clamping device includes an electrode hole on the first strap and a side hole communicating with the electrode hole. An elastic clamping device is provided inside the electrode hole. The strap is connected to an elastic second strap, and the first and second straps form a mesh structure. The strap also has a first fixing device for adhering the entire first strap to the patient's scalp. This utility model, using a strap, first straps, second straps, electrode holes, etc., ensures that the electrodes do not move during the entire electrode connection process, making the data acquired by this device more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of brain electrode fixation technology, specifically relating to a fixation cap. Background Technology

[0002] Electroencephalography (EEG) is a graphical representation of the brain's spontaneous bioelectric potentials recorded on the scalp using sophisticated electronic instruments. It records the spontaneous, rhythmic electrical activity of brain cell groups through electrodes. EEG is generally classified into conventional EEG, ambulatory EEG, and video EEG. Electrodes are a crucial component in EEG measurement and can be categorized by shape, such as disc electrodes and bridge electrodes. Disc electrodes are typically used for both conventional EEG and long-term EEG monitoring. In conventional EEG examinations, disc electrodes are primarily used for assessing conscious outpatients to determine the presence of epileptiform discharges or to evaluate brain function. Long-term EEG monitoring is often used to screen for interictal epileptiform discharges, improving the accuracy and efficiency of detection.

[0003] Currently, when using disc electrodes for patient testing, the process typically involves first using a scrub to remove oil and dirt from the scalp at the electrode points. Then, a spoonful of electrode paste is scooped from the disc-shaped indentation of the electrode, applied to the scalp, and finally secured with tape. However, when the tape comes into contact with the scalp or hair, the connection needs to be broken after testing. Therefore, strong adhesive tape cannot be used, as this could cause discomfort to the patient when the tape is disconnected. Using non-strong adhesive tape may result in unstable fixation. To reduce inaccurate signal acquisition due to unstable fixation of the disc electrodes to the scalp, existing technology uses an elastic mesh cap after all disc electrodes are connected to the scalp with tape to further secure their position on the head. The mesh cap also helps the disc electrodes adhere more closely to the scalp, resulting in a more stable EEG signal.

[0004] However, when using a net cap for further fixation during the above process, the net cap needs to be placed on the patient's head only after all EEG electrode positions on the head are connected to the disc electrodes and tape. Because the tape is not very sticky, it may break off from the scalp or hair in part while waiting for all EEG electrode positions to be connected to the disc electrodes, but this may not be visible from the outside. As a result, when the net cap is reconnected to the patient's head, the disc electrodes may move slightly, leading to inaccurate data results. Utility Model Content

[0005] This utility model discloses a fixing cap, which aims to solve the technical problem in the prior art where the use of tape and mesh caps to fix disc electrodes may cause changes in the position of the disc electrodes, thereby affecting the accuracy of data acquisition.

[0006] To solve the aforementioned technical problems, the present invention adopts the following technical solution:

[0007] A fixation cap includes a strap that is fitted over a patient's head. The strap has several first straps, each with several positioning clamping devices. Each positioning clamping device corresponds one-to-one with a brain electrode position on the head. Each positioning clamping device includes an electrode hole on the first strap. The first strap has a side hole communicating with the electrode hole. An elastic clamping device is disposed within the electrode hole. The strap is connected to an elastic second strap. The first and second straps form a mesh structure. The strap also has a first fixing device for adhering the entire first strap to the patient's scalp. Using this technical solution, after connecting the strap to the patient's head, the first fixing device is then connected to the patient, ensuring the first straps on the strap are tightly against the patient's scalp. Then, a disc electrode, pre-applied with electrode paste, is inserted through the electrode hole on the first strap into contact with the patient's scalp, with the sidewall of the disc electrode secured by the elastic clamping device. If you have a lot of hair, you can first use a tool to part the hair at the EEG electrode points that need to be connected, press the hair under the corresponding first band, then connect the disc electrode, and finally let the second band squeeze the disc motor that has been connected to the EEG electrode points.

[0008] This device is designed in a cap shape. Initially, the first band is placed directly against the patient's scalp. The first band has electrode holes and an elastic clamping device for initial fixation of the disc electrode. After the disc electrode contacts the EEG electrode point, the second band compresses the disc electrode, fixing it to the side and top walls. Therefore, this device fixes the disc electrode after its position is determined, ensuring accurate electrode placement and data acquisition. Furthermore, it avoids the need for repeated tape removal, making it simple to operate and user-friendly.

[0009] The first belt is detachably connected to the sleeve belt. The sleeve belt has several openings that mate with the first belt, and a pin is provided in each opening. The first belt has a socket that mates with the pin.

[0010] By adopting this technical solution, the detachable connection between the first strap and the sleeve allows the device to adapt to patients with different head circumferences by changing the length of the first strap within the sleeve, thus increasing the device's practicality. Secondly, the first strap can be fixed to the corresponding position on the sleeve via a pin in the sleeve opening. This fixing method is simple, highly operable, and reduces the difficulty of operating the device.

[0011] The opening is further provided with a first fixing block, which is positioned opposite to the pin.

[0012] By adopting this technical solution, the first fixing block can restrict the position of the first band on the entire pin after the first band is inserted with the pin, preventing the first band from slipping out from the tip. Therefore, the setting of the first fixing block increases the stability of the device during use.

[0013] The second belt is detachably connected to the sleeve belt. One end of the second belt is provided with a collar, which is sleeved on the sleeve belt. The other end is provided with an elastic hook and loop fastener. The sleeve belt is provided with an elastic hook and loop fastener textured surface that cooperates with the elastic hook and loop fastener fastener.

[0014] With this technical solution, the position of the second band relative to different EEG points can be adjusted arbitrarily using the collar. Once adjusted, the elastic Velcro tab at the end of the second band can be pulled directly to make it adhere to the elastic Velcro loop on the band, thus securing the second band. Therefore, the collar, elastic Velcro tab, and other features on the second band can be coordinated with the adjustable first band to accommodate patients with different head circumferences, increasing the practicality of the device.

[0015] Wherein, the second belt is provided with a second fixing device at one end that is attached to the first belt. The second fixing device includes an elastic sheet connected to the second belt. The elastic sheet is provided with a sliding groove. The sliding groove is connected to a second fixing block. The second fixing block is provided with a groove that mates with the convex surface of the disc electrode.

[0016] With this technical solution, the second fixing block is slidably mounted on the second strip via a groove, allowing it to precisely contact the disc electrodes at different EEG electrode positions. The groove and the convex surface of the disc electrode further enhance the fixing and positioning of the electrode, while also compressing it to reduce the distance between the electrode and the scalp. Therefore, the accuracy of EEG data acquisition by this device can be improved.

[0017] The width of the first strip gradually decreases from the center to both ends, and both ends of the first strip are connected to the first combing device and the second combing device respectively after passing through the sleeve.

[0018] After adopting this technical solution, the first strip, whose width gradually decreases towards both ends, can be more easily collected and organized by the first combing device and the second combing device because the width is constantly decreasing. This allows all the first strips to be gathered in two places or one place, thereby reducing the interference between the first strip and the disc electrode wire, making the device more convenient to use.

[0019] The sleeve is equipped with a cushioning pad.

[0020] After adopting this technical solution, the addition of a cushioning pad reduces pressure on the patient's scalp, increasing the patient's comfort during use.

[0021] The first fixing device includes connecting straps symmetrically arranged on both sides of the sleeve, one of the connecting straps being provided with a female buckle and the other connecting strap being provided with a female buckle.

[0022] By adopting this technical solution, the position of the safety cap on the connecting strap can be adaptively adjusted according to the patient's face size through the female and female buckles and the connecting strap. This allows the connecting strap to work in conjunction with the sleeve to secure the entire device to the patient's head with appropriate force and a good fit between the first strap and the patient's scalp. This improves both the practicality and stability of the device during use.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0024] (1) By using a sleeve, a first belt, a second belt, an electrode hole, etc., the electrode position is first determined and then the device is fixed at the electrode position. The disc electrode is then fixed on the first belt where the electrode position has been determined. The entire electrode connection process will not move, making the data collected by the device more accurate.

[0025] (2) The first belt is detachable, and the length of the first belt between the belts can be adjusted according to the head circumference of different patients, which improves the practicality of the device.

[0026] (3) Using a collar, elastic Velcro piercing, etc., the position of the second belt can be adjusted accordingly with the adjustment of the first belt, so that the second belt restricts and fixes the disc electrode on the first belt.

[0027] (4) The use of sliding grooves, second fixing blocks, etc., can cooperate with the elastic clamping device in the electrode hole to limit and fix the side and convex surfaces of the disc electrode, thereby increasing the fixing effect of the disc electrode and thus increasing the stability of the device during use.

[0028] (5) The use of a cushioning pad can increase the patient's comfort when using this device. Attached Figure Description

[0029] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the overall structure of a fixing cap according to the present invention;

[0031] Figure 2 This is a schematic diagram showing the connection between the sleeve and the second belt;

[0032] Figure 3 This is a schematic diagram of the second belt structure;

[0033] Figure 4 This is a schematic diagram of the structure of the first zone;

[0034] Figure 5 A schematic diagram showing how the elastic clamping device and the first fixing block fix the disc electrode.

[0035] Figure 6 for Figure 2 A schematic diagram of the structural method at point A in the middle.

[0036] Figure Labels

[0037] 1-Insertion buckle, 2-Connecting strap, 3-Sleeve, 301-Opening, 302-First fixing block, 303-Pin, 304-Elastic hook and loop fastener, 4-First belt, 401-Electrode hole, 402-Insertion hole, 403-Elastic clamping device, 5-Second belt, 501-Elastic plate, 502-Slide groove, 503-Second fixing block, 504-Groove, 505-Elastic hook and loop fastener, 6-Insertion buckle, 7-First combing device, 8-Second combing device. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] The following is combined Figures 1-6 This utility model will be described in detail.

[0041] Example 1

[0042] A type of fixed cap, such as Figures 1 to 4 and Figure 6 As shown, the device includes a band 3 that is fitted over the patient's head. The band 3 has several first bands 4, each of which has several positioning and clamping devices. Each positioning and clamping device corresponds to a brain electrode position on the head. Each positioning and clamping device includes an electrode hole 401 on the first band 4. The first band 4 has a side hole that communicates with the electrode hole 401. An elastic clamping device 403 is installed inside the electrode hole 401. The band 3 is connected to an elastic second band 5. The first bands 4 and the second bands 5 form a mesh structure. The band 3 also has a first fixing device for adhering the entire first band 4 to the patient's scalp.

[0043] In this embodiment, the first band 4 and the second band 5 are set according to the standard 10-20 lead position, specifically 21 electrodes. Since the 10-20 standard lead is existing technology, it will not be described in detail here.

[0044] In this embodiment, the first band 4 is provided with 5, and the second band 5 is provided with 5.

[0045] In this embodiment, the direction in which the electrode hole 401 passes through the first strip 4 is away from the patient's eye.

[0046] In this embodiment, the elastic clamping device 403 is an elastic retaining ring, which is made of rubber and has good elasticity.

[0047] In this embodiment, the sleeve 3 is an elastic sleeve 3, and non-elastic portions are provided at the connection points between the elastic sleeve 3 and the first belt 4 and the second belt 5.

[0048] After connecting the strap 3 to the patient's head, connect the first fixing device to the patient, ensuring the first band 4 on the strap 3 is in close contact with the patient's scalp. Then, insert the disc electrode, pre-applied with electrode paste, through the electrode hole 401 on the first band 4, making contact with the patient's scalp, and secure the sidewall of the disc electrode with the elastic clamping device 403. If there is a lot of hair, use a tool to part the hair at the points where the EEG electrodes need to be connected, press the hair under the corresponding first band 4, connect the disc electrode, and finally, let the second band 5 press against the disc electrode that has been connected to the EEG electrode points.

[0049] This device is designed in a cap shape. Initially, the first band 4 is placed directly against the patient's scalp. The first band 4 has electrode holes 401 for initial fixation of the disc electrode and an elastic clamping device 403. After the disc electrode makes contact with the EEG electrode point, the second band 5 compresses the disc electrode, fixing its side and top walls. Therefore, this device fixes the disc electrode after the EEG electrode position is determined, ensuring accurate electrode placement and data acquisition. Furthermore, it avoids the need for repeated tape removal, making it simple to operate and user-friendly.

[0050] In this embodiment, the first belt 4 and the sleeve 3 are detachably connected. The sleeve 3 is provided with several openings 301 that cooperate with the first belt 4. A pin 303 is provided in the opening 301. The first belt 4 is provided with a insertion hole 402 that cooperates with the pin 303.

[0051] In this embodiment, both the first belt 4 and the second belt 5 are made of polyester fiber. The first belt 4 is provided with several insertion holes 402, and a protective ring is sewn around each insertion hole 402. The protective ring is also made of polyester fiber.

[0052] In this embodiment, 10 openings 301 are provided. The pin 303 is connected to the sleeve 3 by a fixing plate. The fixing plate is fixed to the inner sidewall of the opening 301 by adhesive. After the pin 303 and the fixing plate are threaded together, they are then glued together with adhesive.

[0053] The detachable connection between the first strap 4 and the sleeve 3 allows the device to adapt to patients with different head circumferences by changing the length of the first strap 4 within the sleeve 3, thus increasing the device's practicality. Secondly, the first strap 4 can be fixed to the corresponding position on the sleeve 3 via a pin 303 in the opening 301 of the sleeve 3. This simple and easy-to-operate method reduces the difficulty of operating the device.

[0054] In this embodiment, a first fixing block 302 is also provided inside the opening 301, and the first fixing block 302 is disposed opposite to the pin 303.

[0055] In this embodiment, the first fixing block 302 is adhered to the opening 301.

[0056] The first fixing block 302 can restrict the position of the first band 4 on the entire pin 303 after the first band 4 is inserted into the pin 303, preventing the first band 4 from slipping out from the tip. Therefore, the first fixing block 302 increases the stability of the device during use.

[0057] In this embodiment, the second belt 5 is detachably connected to the sleeve 3. One end of the second belt 5 is provided with a collar, which is sleeved on the sleeve 3. The other end is provided with an elastic hook and loop fastener 505. The sleeve 3 is provided with an elastic hook and loop fastener rough surface 304 that cooperates with the elastic hook and loop fastener 505.

[0058] In this embodiment, the collar is formed by sewing, and the size of the collar matches the size of the strap 3.

[0059] In this embodiment, the elastic hook and loop fastener 505 is sewn to the loop, and the elastic hook and loop fastener 304 is also sewn to the strap 3. This allows for replacement when needed, reducing costs.

[0060] The collar can be adjusted to arbitrarily change the position of the second band 5 relative to different EEG electrode points. Once adjusted, the elastic Velcro serrated surface 505 at the end of the second band 5 can be pulled directly to make it fit against the elastic Velcro loop surface 304 on the sleeve 3, thus securing the second band 5. Therefore, the collar, elastic Velcro serrated surface 505, and other features on the second band 5 can be adjusted in conjunction with the first band 4 to accommodate patients with different head circumferences, increasing the practicality of the device.

[0061] In this embodiment, the width of the first band 4 gradually decreases from the center to both ends, and both ends of the first band 4 pass through the sleeve 3 and are respectively connected to the first combing device 7 and the second combing device 8.

[0062] In this embodiment, both the first combing device 7 and the second combing device 8 are retaining rings made of PVC material. After all the ends of the first strip 4 are overlapped together, they are fitted into the retaining rings to tighten and store the first strip 4.

[0063] The first strip 4, whose width gradually decreases towards both ends, can be more easily collected and organized by the first combing device 7 and the second combing device 8 because of its continuously decreasing width. This allows all the first strips 4 to be gathered in two places or one place, thereby reducing the interference between the first strips 4 and the disc electrode wires and making the device more convenient to use.

[0064] In this embodiment, a cushioning pad is provided inside the sleeve 3.

[0065] In this embodiment, the cushioning pad includes a cover supported by an elastic fabric, and the cover is filled with medical cotton.

[0066] The inclusion of a cushioning pad reduces pressure on the patient's scalp, increasing patient comfort during use.

[0067] In this embodiment, as Figure 1As shown, the first fixing device includes connecting straps 2 symmetrically arranged on both sides of the sleeve 3, one of the connecting straps 2 is provided with a buckle 1, and the other connecting strap 2 is provided with a buckle 6.

[0068] In this embodiment, the connecting strap 2 is a triangular-shaped strap made of polyester fiber, which can fit the patient's face.

[0069] In this embodiment, the connection between the female buckle 6 and the safety chin buckle and the strap is existing technology and will not be described in detail here.

[0070] The female buckle 6, the male buckle 1, and the connecting strap 2 can be adaptively adjusted to fit the patient's face size. The position of the safety cap on the connecting strap 2 allows the connecting strap 2 to engage with the sleeve 3, securing the entire device to the patient's head with appropriate force and a close fit between the first strap 4 and the patient's scalp. This enhances the practicality and stability of the device during use.

[0071] The specific method of using this utility model is as follows:

[0072] Reference Figures 1-4 and Figure 6 When using this device, first measure the patient's head circumference, clean the corresponding electrode positions on the patient's scalp, and then adjust the position of the first band 4 in the sleeve 3 according to the patient's head circumference, so that the first band 4 slides in the opening 301. After the electrode hole 401 on the first band is aligned with the corresponding EEG electrode position, align the insertion hole 402 on the first band 4 with the pin 303, insert the pin 303 into the insertion hole 402, and insert one end of the pin 303 through the insertion hole 402 into the first fixing block 302; at the same time, attach the second band 5 to the sleeve 3. Then put the sleeve 3 on the patient's head, and connect the buckle 1 and the buckle 6. At the same time, adjust the length of the connecting band 2 so that the loop structure formed by the two connecting bands 2 fits the connection with the patient and is locked at the patient's chin. Then, the position of the first band 4 is finely adjusted, and the second band 5 is also adjusted accordingly, so that the electrode hole 401 on the first band 4 and the patient's brain electrode position are spatially aligned, and the second band 5 can abut and squeeze all the disc electrodes.

[0073] Once everything is ready, medical staff use a disc electrode to scoop a spoonful of electrode paste and insert the disc electrode with the paste into contact with the patient's scalp through the electrode hole 401 on the first strip 4. The side wall of the disc electrode is fixed by an elastic element. After all the EEG electrode positions are connected to the disc electrode in this way, the second strip 5 is pressed against the disc electrode longitudinally. Finally, the smooth side and the rough side of the Velcro are connected to detect the patient's EEG signal.

[0074] After the test is completed, all instruments can be turned off. Then, the disc electrode and this device can be disassembled according to the above process. After disinfection, they can be reused, reducing costs and improving the accuracy of data detection.

[0075] Example 2

[0076] This embodiment is basically the same as Embodiment 1, except that: in this embodiment, as shown in the example... Figure 5 As shown, a second fixing device is provided at one end of the second belt 5 that is attached to the first belt 4. The second fixing device includes an elastic sheet connected to the second belt 5. A sliding groove 502 is provided on the elastic sheet. A second fixing block 503 is connected to the sliding groove 502. A groove 504 that cooperates with the convex surface of the disc electrode is provided in the second fixing block 503.

[0077] In this embodiment, the elastic sheet is made of PVC plastic with a thickness of 0.2cm. It has a certain degree of elasticity and toughness, and can be bent to adapt to the curvature of the skull.

[0078] In this embodiment, the groove 502 is integrally formed with the elastic sheet.

[0079] In this embodiment, the second fixing block 503 is made of PVC plastic, and the outer wall of the groove 504 is provided with a rubber part that can abut and clamp the convex surface of the disc electrode.

[0080] The second fixing block 503 is slidably mounted on the second belt 5 via the sliding groove 502, allowing it to precisely contact the disc electrodes at different EEG electrode positions. Furthermore, the groove 504 engages with the convex surface of the disc electrode, providing better fixation and positioning of the disc electrode. It also compresses the disc electrode, reducing the distance between the disc electrode and the scalp. Therefore, the accuracy of EEG data acquisition by this device can be improved.

[0081] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing cap, characterized in that: The device includes a band (3) that is fitted over the patient's head. The band (3) has several first bands (4). Each first band (4) has several positioning clamping devices. The positioning clamping devices correspond one-to-one with the brain electrode positions on the head. Each positioning clamping device includes an electrode hole (401) on the first band (4). The first band (4) has a side hole that communicates with the electrode hole (401). An elastic clamping device (403) is provided in the electrode hole (401). The band (3) is connected to an elastic second band (5). The first band (4) and the second band (5) form a mesh structure. The band (3) also has a first fixing device for attaching the entire first band (4) to the patient's scalp.

2. A fixing cap according to claim 1, characterized in that: The first band (4) is detachably connected to the sleeve (3). The sleeve (3) is provided with several openings (301) that cooperate with the first band (4). A pin (303) is provided in the opening (301). The first band (4) is provided with a insertion hole (402) that cooperates with the pin (303).

3. A fixing cap according to claim 2, characterized in that: A first fixing block (302) is also provided inside the opening (301), and the first fixing block (302) is disposed opposite to the pin (303).

4. A fixing cap according to claim 1, characterized in that: The second band (5) is detachably connected to the sleeve (3). One end of the second band (5) is provided with a collar, which is sleeved on the sleeve (3). The other end is provided with an elastic hook and loop fastener (505). The sleeve (3) is provided with an elastic hook and loop fastener (304) that cooperates with the elastic hook and loop fastener (505).

5. A fixing cap according to claim 1, characterized in that: The second band (5) is attached to one end of the first band (4) and a second fixing device is provided. The second fixing device includes an elastic sheet connected to the second band (5). The elastic sheet is provided with a groove (502). The groove (502) is connected to a fixing block. The fixing block is provided with a groove (504) that cooperates with the convex surface of the disc electrode.

6. A fixing cap according to any one of claims 1-5, characterized in that: The width of the first band (4) gradually decreases from the center to both ends, and both ends of the first band (4) are connected to the first combing device (7) and the second combing device (8) respectively after passing through the sleeve (3).

7. A fixing cap according to any one of claims 1-5, characterized in that: The sleeve (3) is provided with a cushioning pad.

8. A fixing cap according to any one of claims 1-5, characterized in that: The first fixing device includes connecting straps (2) symmetrically arranged on both sides of the sleeve (3), one of the connecting straps (2) is provided with a buckle (1), and the other connecting strap (2) is provided with a buckle (6).

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