An adjustable electroencephalogram electrode patch fixation device

Abstract

The application discloses an adjustable electroencephalogram electrode piece fixing device, and belongs to the technical field of medical auxiliary supplies, and is used for providing an adjustable electroencephalogram electrode piece fixing device more suitable for long hair wearers, comprising a head cover part, the head cover part is provided with a lead sleeve with an open lower end, the lead sleeve is provided with densely distributed threading holes, the lower end edge of the lead sleeve is provided with a tightening belt, the front side edge of the tightening belt and the bottom edge of the lead sleeve surround a face window, the rear side edge of the tightening belt and the bottom edge of the lead sleeve surround a neck window, the inner surface of the front side wall of the lead sleeve is fixedly connected with a head gasket, the inner surface of the tightening belt is fixedly connected with a neck gasket, and the rear side wall of the lead sleeve is provided with a gathering hole. The application sets the gathering hole structure of the plait on the rear side wall of the head cover part, utilizes the stable root of the tied plait to further constrain the head cover part itself, cooperates with the gasket structure with greater contact friction force, so that the fixing device can also be kept stable on the head of the long hair wearer.

Description

Technical Field

[0001] This application relates to the field of medical assistive devices technology, and in particular to an adjustable electroencephalogram (EEG) electrode fixation device. Background Technology

[0002] When performing electroencephalogram (EEG) data acquisition, multiple electrode pads need to be placed on the head to obtain signals. Due to the large number of electrode pads, it takes a long time to put them on accurately one by one, so there is a great fear that the electrode pads will fall off. Existing technologies use headband-style fixation devices to help restrain the electrode pads. However, existing fixation devices can only maintain their stability by using a strap structure that goes around the chin. For wearers with a lot of hair, such as girls with long hair, the contact area between the fixation device and the skin is smaller, resulting in less contact friction. The fixation device itself is more prone to shifting, so it is difficult to ensure the stability of the electrode pads. Summary of the Invention

[0003] The purpose of this application is to provide an adjustable EEG electrode fixation device that is more suitable for wearers with long hair.

[0004] To achieve the above objectives, this application provides an adjustable EEG electrode fixation device: comprising a head cover, the head cover having a lead sleeve open at the lower end, the lead sleeve having densely distributed threading holes suitable for the electrode wires to pass through, the lower edge of the lead sleeve having a tightening band, the front edge of the tightening band and the bottom edge of the lead sleeve forming a face window, the rear edge of the tightening band and the bottom edge of the lead sleeve forming a neck window, a head pad fixedly connected to the inner surface of the front sidewall of the lead sleeve, a neck pad fixedly connected to the inner surface of the tightening band, and a tightening hole opened on the rear sidewall of the lead sleeve suitable for hair tied with an elastic band to pass through, utilizing the stability of the braid's root itself to constrain the fixation device.

[0005] As a preferred embodiment, both ends of the tightening band are connected to the lead wire sleeve. The tightening band and the lead wire sleeve are an integral structure, both woven from polyurethane fibers, which have good elasticity and toughness and can adapt to more head shapes with different proportions.

[0006] As a preferred embodiment, the part where the lead wire sleeve connects to the tightening band has an ear-root tightening hole, which cooperates with the ear root to further improve the head's restraint on the fixing device.

[0007] As a preferred embodiment, the gathering holes on the rear sidewall of the lead sleeve include single-braid gathering holes and double-braid gathering holes. The single-braid gathering hole is located in the center of the rear sidewall of the lead sleeve, and the two double-braid gathering holes are symmetrical on the left and right sides of the rear sidewall of the lead sleeve. The single-braid has higher individual stability and is more convenient; the double-braid is more complex, but has higher overall stability.

[0008] As a preferred embodiment, the two double-braided gathering holes have the same diameter, both smaller than the diameter of the single-braided gathering hole; neither the single-braided nor the double-braided gathering hole is connected to any of the threading holes, thus avoiding excessive interference between the electrode wires and the wearer's hair.

[0009] As a preferred embodiment, both the head pad and the neck pad are made of silicone material. The head pad is adapted to fit against the wearer's forehead, and the neck pad is adapted to fit against the wearer's chin, thereby generating greater contact friction.

[0010] As a preferred embodiment, the head pad has a dense array of forehead ventilation holes, and the neck pad has a dense array of chin ventilation holes to ensure breathability and reduce stuffiness.

[0011] As a preferred embodiment, it also includes a neck patch comprising a detachable adhesive patch and a back cover. The adhesive patch is adapted to be directly fixed to the back of the wearer's neck, and the wires of all electrode pads are adapted to be constrained between the back cover and the adhesive patch, located below the braid, as neat and effective as a braid, not messy, easy to manage, and not easily tangled.

[0012] As a preferred embodiment, one surface of the adhesive patch is an adhesive surface and the other surface is a hook and loop fastener surface, and one surface of the back cover is a hook and loop fastener surface, which is suitable for bonding with the hook and loop fastener surface, enabling quick constraint and separation, and facilitating the constraint and peeling operation of the electrode sheet wires.

[0013] As a preferred embodiment, the hook and loop fastener is divided into two parts. The attaching piece has a wire routing groove between the two hook and loop fastener fasteners to accommodate the wires of the electrode sheet. The other surface of the back cover has two finger hook grooves, which are located near the left and right sides of the back cover to facilitate the operator to apply a pulling force to peel off the back cover.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] (1) By setting a braided knot structure on the back side wall of the head cover, the stable root of the tied braid further constrains the head cover itself. Combined with the pad structure with greater contact friction, the fixing device can maintain stability even on the head of a long-haired wearer with more hair and more prone to slipping and moving, thereby maintaining the stable position of the constrained electrode.

[0016] (2) By setting the neck patch to centrally constrain all the electrode wires, the wiring regularity of the wires is improved, the mutual interference between the wires and the wearer's hair is reduced, and the EEG acquisition process can be stable and continuous for a long time, and the acquired data will be more reliable. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of all components of the adjustable EEG electrode fixation device.

[0018] Figure 2 This is a first three-dimensional structural diagram of the head cover portion of the adjustable EEG electrode pad fixing device.

[0019] Figure 3 This is a second three-dimensional structural diagram of the head cover portion of the adjustable EEG electrode pad fixing device.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the head cover portion of the adjustable EEG electrode pad fixation device.

[0021] Figure 5 This is a three-dimensional structural diagram of the neck patch of the adjustable EEG electrode fixation device.

[0022] Figure 6 This is a schematic diagram of the first three-dimensional structure of the attachment patch of the adjustable EEG electrode fixation device.

[0023] Figure 7 This is a schematic diagram of the second three-dimensional structure of the attachment patch of the adjustable EEG electrode fixation device.

[0024] Figure 8 This is a three-dimensional structural diagram of the posterior cover of the adjustable EEG electrode fixation device.

[0025] In the diagram: 1. Headgear; 110. Lead wire sleeve; 111. Single braid gathering hole; 112. Double braid gathering hole; 113. Ear base gathering hole; 114. Threading hole; 120. Fastening strap; 121. Face window; 122. Neck window; 130. Head pad; 131. Forehead vent; 140. Neck pad; 141. Chin vent; 2. Neck patch; 210. Attachment piece; 211. Cable routing channel; 212. Hook and loop fastener side; 213. Adhesive side; 220. Back cover; 221. Hook and loop fastener side; 222. Finger hook groove. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] like Figure 1-8 The adjustable EEG electrode fixing device shown includes a head cover 1 with good elasticity. The head cover 1 has a lead sleeve 110 with an open lower end. The top and surrounding of the lead sleeve 110 are provided with a dense array of wire holes 114. Since there are many wire holes 114, there are always wire holes 114 that can be aligned with the electrode pads to be connected. After the electrode pads are configured, the wires of the electrode pads can pass through the corresponding wire holes 114. Since the lead sleeve 110 itself has good elasticity, the wire holes 114 formed by the material of the lead sleeve 110 can expand sufficiently and then return to their original size. That is to say, the lead sleeve 110 can not only allow the wires of the electrode pads to pass through, but also allow the larger electrode pads themselves to pass through, which facilitates the installation and configuration of the electrode pads on the head.

[0031] The lower edge of the lead sleeve 110 has a tightening band 120. In fact, the tightening band 120 and the lead sleeve 110 are an integral structure, both made of polyurethane fiber. Both ends of the tightening band 120 are connected to the lead sleeve 110. For the tightening band 120 with good elasticity, this connection structure is more convenient to wear. The front edge of the tightening band 120 and the bottom edge of the lead sleeve 110 form a face window 121, through which the wearer's face is visible. The rear edge of the tightening band 120 and the bottom edge of the lead sleeve 110 form a neck window 122, providing space for the wearer's neck. The part where the lead sleeve 110 and the tightening band 120 are connected has an ear root tightening hole 113, allowing the wearer's ears to pass through. The pull provided by the wearer's two ears can be used to tighten the lead sleeve 110 on the top of the wearer's head.

[0032] A head pad 130 is fixedly connected to the inner surface of the front side wall of the lead sleeve 110. Generally, the head pad 130 is fixed with sutures at its edge. The head pad 130 is made of medical-grade hygienic silicone material. The head pad 130 is used to fit against the wearer's forehead, which can generate greater contact friction, thereby improving the stability of the fit between the head cover 1 and the wearer's head. The head pad 130 also has densely packed forehead ventilation holes 131 to improve the breathability of the forehead and reduce stuffiness. A neck pad 140 is also fixedly connected to the inner surface of the tightening strap 120. Generally, the neck pad 140 is also fixed with sutures at its edge. The neck pad 140 fits perfectly against the wearer's chin, which can also generate greater contact friction, further improving the wearing stability. The neck pad 140 has densely packed chin ventilation holes 141 to further reduce the stuffiness of the chin area.

[0033] The rear side wall of the lead-in sleeve 110 has a gathering hole for hair tied with an elastic band to pass through. This allows the hair tied up by the wearer to provide restraint and positioning for the head cover 1, thus ensuring good positional stability of the rear side wall of the lead-in sleeve 110. Specifically, the gathering holes on the rear side wall of the lead-in sleeve 110 include a single braid gathering hole 111 and a double braid gathering hole 112. The single braid gathering hole 111 is located in the center of the rear side wall of the lead-in sleeve 110 and is suitable for a single ponytail or single braid to pass through. The two double braid gathering holes 112 are symmetrically arranged on the left and right sides of the rear side wall of the lead-in sleeve 110 and are suitable for double ponytails or double braids to pass through. Since two braids are definitely thinner than a single braid under the same hair volume, the diameters of the two double braid gathering holes 112 are set to be the same and smaller than the diameter of the single braid gathering hole 111. Since the lead sleeve 110 material surrounding the single braid gathering hole 111 and the double braid gathering hole 112 is elastic, even a thicker braid can pass through the gathering hole, and even a thinner braid can be constrained and fixed by the gathering hole with a smaller diameter. Neither the single braid gathering hole 111 nor the double braid gathering hole 112 is connected to any of the threading holes 114, so that the lead wires of the electrode plate do not interfere with the wearer's hair or braids.

[0034] The adjustable EEG electrode pad fixing device also includes a separately wearable neck patch 2. The neck patch 2 and the head cover 1 are separate, and their materials are quite different. The neck patch 2 includes a detachable adhesive patch 210 and a back cover 220. The adhesive patch 210 is used to directly fix it to the back of the wearer's neck. All electrode wires are constrained between the back cover 220 and the adhesive patch 210. Specifically, one surface of the adhesive patch 210 is an adhesive surface 213. When not in use, the adhesive surface 213 is covered by a plastic film, which can effectively prevent dust accumulation and maintain adhesion. When in use, the plastic film is removed, allowing the adhesive surface 213 to adhere to the skin surface for wearing. The other surface of the adhesive patch 210 is a hook and loop fastener 212, and the corresponding surface of the back cover 220 is a hook and loop fastener 221, which corresponds to the hook and loop fastener 212. The fastening allows for quick adhesion and removal. The hook and loop fastener 212 is divided into two symmetrical pieces. The attachment piece 210 has a wiring groove 211 between the two hook and loop fasteners 212 to accommodate the electrode wires. All the electrode wires are arranged side by side in the wiring groove 211. The other surface of the back cover 220 has two finger hook grooves 222, located near the left and right sides of the back cover 220. When a fingernail is inserted into the finger hook groove 222, it can easily apply traction to the edge of the back cover 220, thereby allowing the hook and loop fastener 221 to detach from the hook and loop fasteners 212. The attachment piece 210 and the back cover 220 are made of breathable fabric, such as common bamboo fiber fabric, so good breathability can be ensured without openings, and there will be no stuffiness after wearing the neck patch 2.

[0035] Working principle: This fixing device is suitable for two types of people. One type has relatively thin hair, preferably shaved, who can directly utilize the contact friction provided by the silicone head pad 130 and neck pad 140, as well as the downward pull provided by the ear loop 113 and the tightening strap 120 to firmly restrain the lead wire sleeve 110 on the top of the head. Due to the high contact friction between the skin and silicone, the lead wire sleeve 110 is not likely to shift on the smooth top of the head. The other type is people with a lot of hair, such as girls with long hair. Before use, they need to use a hair tie to braid their hair, usually just one braid is enough. You can tie it into two braids as desired. Because the part of the braid bound by the rubber band is very stiff and is restrained by the hair in all directions, the root of the braid bound by the rubber band will be very stable. Let the wearer's head thread pass through the neck window 122, and then let the braid pass through the single braid gathering hole 111 or double braid gathering hole 112. The root of the braid is located in the single braid gathering hole 111 or double braid gathering hole 112, which can restrict the position of the single braid gathering hole 111 or double braid gathering hole 112, thereby preventing the back wall of the lead sleeve 110 from moving. Then let the wearer's face fit into the face window 121, and the head pad 130 will cover it. The neck pad 140 covers the wearer's chin, using contact friction to prevent movement of the front wall of the lead sleeve 110 and the tightening strap 120. The wearer's ear is then passed through the ear root constriction hole 113. Because the base of the ear is relatively rigid and its position on the wearer's head is very stable, the lead sleeve 110 is further stabilized on the wearer's head. Finally, the alignment hole 114 is opened with three fingers, the hair is parted to expose the scalp, and the electrode plate, integrated with the lead wire, is passed through the hole 114. Electrode paste is then applied to the electrode plate. When the electrode pad is in electrical contact with the scalp and three fingers are released, the enlarged thread hole 114 returns to its contracted state under the action of elasticity, wrapping the electrode wire and covering the electrode pad. This ensures that the electrode pad attached to the scalp can remain stable and is not easy to fall off or slip. The wires of the electrode pad converge below the wearer's braid and are then placed into the wiring groove 211 of the attachment 210 attached to the back of the wearer's neck. The back cover 220 is secured by Velcro. When the wires of the electrode pad are subjected to traction, this tension is first absorbed by the neck patch 2, and the electrode pad, which is secured by the lead sleeve 110, is unlikely to shift.

[0036] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An adjustable electroencephalogram (EEG) electrode fixation device, characterized in that: The device includes a head cover (1), which has a lead wire sleeve (110) with an open lower end. The lead wire sleeve (110) has a dense array of through holes (114) for the lead wires of the electrode plates to pass through. The lower edge of the lead wire sleeve (110) has a tightening band (120). The front edge of the tightening band (120) and the bottom edge of the lead wire sleeve (110) form a face window (121). The rear edge of the tightening band (120) and the bottom edge of the lead wire sleeve (110) form a neck window (122). A head pad (130) is fixedly connected to the inner surface of the front sidewall of the lead wire sleeve (110). A neck pad (140) is fixedly connected to the inner surface of the tightening band (120). A gathering hole is provided on the rear sidewall of the lead wire sleeve (110) for hair tied with a rubber band to pass through.

2. The adjustable EEG electrode fixation device as described in claim 1, characterized in that: Both ends of the tension band (120) are connected to the lead sleeve (110). The tension band (120) and the lead sleeve (110) are an integral structure, both made of polyurethane fiber.

3. The adjustable EEG electrode fixation device as described in claim 2, characterized in that: The part where the lead sleeve (110) connects to the tightening band (120) has an ear-root gathering hole (113).

4. The adjustable EEG electrode fixation device as described in claim 3, characterized in that: The gathering holes opened on the rear side wall of the lead sleeve (110) include a single braid gathering hole (111) and a double braid gathering hole (112). The single braid gathering hole (111) is located in the center of the rear side wall of the lead sleeve (110), and the two double braid gathering holes (112) are symmetrical on the left and right sides of the rear side wall of the lead sleeve (110).

5. The adjustable EEG electrode fixation device as described in claim 4, characterized in that: The two double-braided gathering holes (112) have the same diameter, both smaller than the diameter of the single-braided gathering hole (111); neither the single-braided gathering hole (111) nor the double-braided gathering hole (112) is connected to any of the threading holes (114).

6. The adjustable EEG electrode fixation device as described in any one of claims 1 to 5, characterized in that: Both the head pad (130) and the neck pad (140) are made of silicone material. The head pad (130) is adapted to fit against the wearer's forehead, and the neck pad (140) is adapted to fit against the wearer's chin.

7. The adjustable EEG electrode fixation device as described in claim 6, characterized in that: The head pad (130) has a dense array of forehead ventilation holes (131), and the neck pad (140) has a dense array of chin ventilation holes (141).

8. The adjustable EEG electrode fixation device as described in any one of claims 1 to 5, characterized in that: It also includes a neck patch (2), which includes a detachable patch (210) and a back cover (220). The patch (210) is adapted to be directly fixed to the back of the wearer's neck, and the wires of all electrode pads are adapted to be constrained between the back cover (220) and the patch (210).

9. The adjustable EEG electrode fixation device as described in claim 8, characterized in that: One surface of the adhesive patch (210) is an adhesive surface (213) and the other surface is a hook and loop fastener surface (212). One surface of the back cover (220) is a hook and loop fastener surface (221) and is adapted to be attached to the hook and loop fastener surface (212).

10. The adjustable EEG electrode fixation device as described in claim 9, characterized in that: The hook and loop fastener (212) is divided into two parts. The attaching piece (210) has a wire routing groove (211) between the two hook and loop fasteners (212) to accommodate the wires of the electrode piece. The other surface of the back cover (220) has a finger hook groove (222). There are two finger hook grooves (222), which are located near the left and right sides of the back cover (220).

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