Cap for collecting brain waves
By using elastic padding components, such as air bladders and springs, in the EEG acquisition cap, the problem of poor contact between the electrodes and the scalp was solved, achieving efficient and comfortable EEG signal acquisition.
Patent Information
- Application Number
- CN202422889507.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In existing brain-computer interface technologies, devices used to collect brain waves are designed for patients with brain injuries or skull damage. The scalp is concave, which leads to poor contact between the electrodes and the scalp, making it impossible to accurately identify brain signals.
Design a cap for collecting brainwaves by placing multiple elastic filling components, such as air bladders or springs and elastic pressure plates, between the outer cover and the head cover to apply inward pressure to the sensing electrodes, ensuring that the electrodes fit tightly against the scalp.
It effectively avoids poor contact between the electrodes and the scalp, improves the accuracy of EEG signal acquisition and patient comfort, and adapts to different head shapes and sizes.
Smart Images
Figure CN223715725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, especially a cap for gathering brain wave. BACKGROUND
[0002] Scientific research finds that when the human brain is in thinking activity, produces consciousness or is stimulated by outside (such as vision, hearing etc.), there is a series of electric activity along with the operation of nervous system, thereby produces brain electric signal. Brain-computer interface technology is to gather the brain electric signal produced by the activity of cerebral cortex nervous system, and through amplification, filtering etc. method, converts it into the signal that can be recognized by computer, and distinguishes the real intention of human from it. In the existing brain-computer interface technology, the device for gathering brain wave is generally the headgear that is wrapped head through various lead connections, but for the patient with brain trauma or skull damage, the scalp of the patient has depression, and the problem of poor contact between electrode and scalp is prone to occur when wearing headgear, leading to the inaccuracy of brain electric signal identification. SUMMARY
[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a cap for gathering brain wave, which can keep the headgear fit the scalp of the patient through structural improvement.
[0004] The cap for gathering brain wave according to the utility model embodiment comprises a headgear and an outer cover, the headgear is connected with multiple sensing electrodes, the outer cover is covered on the outer side of the headgear, the edge of the outer cover is connected with the headgear, a filling gap is formed between the outer cover and the headgear, multiple elastic filling components are arranged in the filling gap, the multiple elastic filling components are distributed along the circumference of the outer cover at intervals, each sensing electrode contacts at least one elastic filling component, and the elastic filling component can apply inward pressure to the headgear and the sensing electrode.
[0005] The cap for gathering brain wave according to the utility model embodiment has at least the following beneficial effects:
[0006] In use, the patient wears the headgear, and the outer cover is covered on the outer side of the headgear, the elastic filling component applies inward pressure to the headgear and the sensing electrode, so that the headgear and the sensing electrode keep fit the scalp of the patient, and the problem of poor contact between electrode and scalp is prevented.
[0007] According to some embodiments of the utility model, the elastic filling component is an air bag, the air bag is connected with a gas filling pipe, the inner part of the outer cover is provided with a groove for accommodating the gas filling pipe, and the gas filling pipe is provided with a connector to connect an external gas source.
[0008] According to some embodiments of the utility model, its characterized in that: the cover is connected with pressure regulating valve, pressure regulating valve connects a plurality of the inflation pipe.
[0009] According to some embodiments of the utility model, the elastic filling part includes two plastic sheets that are bonded together, a plurality of gas storage cavities are arranged between the two plastic sheets to form the air bag, and a communication air passage is arranged between two adjacent gas storage cavities.
[0010] According to some embodiments of the utility model, the elastic filling part includes a spring and an elastic pressing plate, both ends of the spring are connected to the cover and the elastic pressing plate respectively, and the elastic pressing plate abuts against the head cover and the induction electrode.
[0011] According to some embodiments of the utility model, each elastic pressing plate is connected to a plurality of springs, and the plurality of springs are arranged in a matrix.
[0012] According to some embodiments of the utility model, the inner wall of the cover is provided with a radially arranged pin hole, a latch is arranged in the pin hole, the outer wall of the latch is provided with a retaining ring, the spring is sleeved on the latch and abuts against the retaining ring.
[0013] According to some embodiments of the utility model, the latch has multiple specifications, the size of the retaining ring of each latch is different, and the axial thickness size of the retaining ring is different along the axial direction of the latch.
[0014] According to some embodiments of the utility model, the head cover is made of elastic fabric, the head cover is connected to the cover through a plurality of buckles, and the lower end of the head cover is provided with a connecting belt to fix the head of a patient.
[0015] According to some embodiments of the utility model, the cover is an injection molding part, the thickness of the cover is at least 3 mm, the outer wall of the cover is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are in a radial or grid shape.
[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further explained in combination with the drawings and embodiments, wherein:
[0018] Figure 1 It is the exploded schematic view of the cap for collecting brain waves of the utility model embodiment;
[0019] Figure 2 It is the sectional view of the cap for collecting brain waves of some embodiments of the utility model.
[0020] Figure 3 A cross-sectional view of the cap for collecting brain waves of another embodiment of the utility model.
[0021] Reference signs:
[0022] Headgear 100, sensing electrode 110, connecting band 120;
[0023] Cover 200, reinforcing rib 210;
[0024] Elastic filling part 300, spring 310, elastic pressing plate 320. DETAILED DESCRIPTION
[0025] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.
[0026] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as the limitation of the utility model.
[0027] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, the second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0028] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting, assembling, cooperating and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0029] Referring to Figure 1 And Figure 2 As shown in the utility model, an embodiment of the utility model provides a cap for collecting brain waves, which aims at providing an efficient, comfortable and reliable brain wave collecting device.
[0030] The cap mainly consists of a head cover 100 and an outer cover 200. The head cover 100 is used as a base for the patient to wear. The head cover 100 is made of soft and elastic material, such as medical-grade silicone or high-molecular elastic material, to ensure that it can closely fit the head contour of the patient and provide sufficient comfort when worn. A plurality of sensing electrodes 110 are distributed on the surface of the head cover 100. The electrodes are connected to an external brain wave acquisition device through wires. The number and distribution position of the sensing electrodes 110 are set according to actual detection needs, and generally cover the main brain wave active areas of the head, such as the forehead, temporal region, parietal region and occipital region, etc. The arrangement of the sensing electrodes 110 can be regular grid or irregular distribution specially designed according to the brain wave acquisition needs.
[0031] The outer cover 200 is a protective shell covering the outside of the head cover 100. Its main function is to provide additional fixation and support. The edges of the outer cover 200 are fixed together with the head cover 100 by sewing, pasting or other reliable connection methods, forming a closed or semi-closed space. The filling gap between the outer cover 200 and the head cover 100 is an important innovation point in the present application. A plurality of elastic filling components 300 are arranged in the filling gap. The elastic filling components 300 can exert inward pressure on the head cover 100 and the sensing electrodes 110 through their elastic deformation. The pressure ensures that the sensing electrodes 110 closely fit the scalp of the patient during wearing, thereby effectively avoiding the problem of poor contact between the electrodes and the scalp.
[0032] The elastic filling components 300 are key components in the cap. A plurality of elastic filling components 300 are distributed along the circumference of the outer cover 200. The number is determined according to actual needs. The elastic filling components 300 can be made of soft and high-elasticity materials, such as sponge, memory foam or high-elasticity foam. Each sensing electrode 110 is in contact with at least one elastic filling component 300, so that each sensing electrode 110 has elastic compensation. The elasticity of the elastic filling components 300 allows the sensing electrodes 110 to be fine-tuned according to the shape and size of the patient's head. For patients with brain trauma or skull damage, the sensing electrodes 110 are ensured to fit the patient's scalp. During wearing, the elastic filling components 300 exert inward pressure on the head cover 100 and the sensing electrodes 110 through their elasticity. The pressure is moderate, which does not cause discomfort to the patient, and ensures the close contact between the electrodes and the scalp, so that the sensing electrodes 110 can accurately identify the brain electrical signals.
[0033] In some embodiments of the present application, as shown in Figure 2As shown, the elastic filling component 300 adopts an air bag, which is ingeniously embedded into the filling gap of the cap as the elastic filling component 300, and is connected with an external air source through an inflation pipe, so that the air bag can be inflated or deflated according to the shape and size of the patient's head to achieve the best wearing effect. In order to prevent the inflation pipe from pressing the head cover 100, a recess is arranged inside the outer cover 200 to accommodate the inflation pipe, which can effectively protect the inflation pipe.
[0034] At the end of the inflation pipe, an easy-to-operate joint is arranged, which can be conveniently connected with an external air source (such as a gas pump, gas tank, etc.). The user only needs to insert the output end of the external air source into the joint to start the inflation or deflation operation of the air bag, which improves the convenience and flexibility of the operation.
[0035] In actual application, the individual air bags inside the cap can be adjusted individually according to needs. For example, for patients with brain trauma or skull damage, the inflation amount of the air bag at the concave position is increased to push the corresponding sensing electrode 110 to adhere to the scalp. In addition, since the materials of the air bag and the inflation pipe are soft and durable, even if worn for a long time, it will not cause compression or discomfort to the user's head.
[0036] Further, the outer cover 200 is connected with a pressure regulating valve, which is a control node between the inflation pipe and the external air source, not only controls the inflation process of the air bag, but also controls the pressure inside the air bag through the pressure regulating function. The pressure regulating valve integrates multiple interfaces, each of which is connected with an inflation pipe, which can control the inflation state of multiple air bags at the same time by operating the pressure regulating valve, or individually adjust the pressure of each air bag.
[0037] Since the shape and size of everyone's head are different, it is difficult to meet the needs of all people by a single inflation amount when wearing the cap for collecting brain waves, and the pressure regulating valve effectively solves this problem, allowing the inflation amount of the air bag to be finely adjusted according to the shape and size of the patient's head, thereby ensuring the comfort and fit of the cap when worn. In addition, the pressure regulating valve also has the function of stabilizing the pressure, which is controlled by the pressure regulating valve during detection to maintain stability, which not only improves the accuracy of brain wave collection, but also prolongs the service life of the air bag.
[0038] The specific structure of the air bag can adopt two plastic sheets bonded together to form multiple air bags, and the two plastic sheets are tightly combined through a special bonding process, and multiple gas storage cavities are arranged between the two plastic sheets, which are independent of each other but connected to each other through communication channels. Each gas storage cavity corresponds to an air bag, and by adjusting the number and distribution of the gas storage cavities, the air bag can be more fitted to the user's head, thereby improving the accuracy and comfort of brain wave collection.
[0039] The communication channel serves to connect each gas storage cavity, and when the external gas source inflates the air bag through the inflation pipe, the gas first enters one of the gas storage cavities and then gradually diffuses into other gas storage cavities through the communication channel.
[0040] As Figure 3 shown, in some embodiments of the present application, the elastic filling part 300 adopts a combined structure of a spring 310 and an elastic pressing plate 320, specifically, the spring 310 serves as the core component, and its two ends are connected to the inner wall of the outer cover 200 and the elastic pressing plate 320 respectively. The elastic pressing plate 320 serves as the component in contact with the head cover 100, and the elastic pressing plate 320 is made of soft material with certain elasticity, such as medical-grade silicone or high-elasticity sponge. At the same time, the shape of the elastic pressing plate 320 is designed to match the head contour, thereby further improving the fit and comfort.
[0041] When the hat is worn on the patient's head, the spring 310 is deformed under the pressure of the head, and in turn pushes the elastic pressing plate 320 to tightly fit on the head cover 100 and the sensing electrode 110, and drives the sensing electrode 110 to maintain good contact with the scalp. The spring 310 also deforms elastically to adapt to different head shapes and sizes, thereby improving the accuracy and adaptability of brain wave collection.
[0042] Further, multiple springs 310 are connected to each elastic pressing plate 320, and these springs 310 are arranged in a matrix arrangement. The matrix arrangement means that the springs 310 are distributed in the horizontal and vertical directions, thereby forming a dense network, so that the elastic filling part 300 can better adapt to the contour and curve of the head, even in the parts of the head that are convex or concave. The matrix arrangement of the springs 310 also brings another advantage, which is to improve the uniformity of the hat pressure on the head.
[0043] Further, the outer cover 200 serves as the main support structure of the cap, and the inner wall thereof is designed with radially arranged pin holes, wherein a latch is arranged in each pin hole, and the latch serves as a key component for connecting the spring 310 and the outer cover 200. The latch is provided with a retaining ring on the outer wall thereof, the spring 310 is sleeved on the latch, one end of the spring 310 abuts against the retaining ring, and the other end is connected with the elastic pressing plate 320. The spring 310 is limited by the retaining ring, and the latch prevents the spring from being displaced, thereby improving the stability in use. In assembly, the spring 310 can be sleeved on the latch first, and then the latch is inserted into the pin hole of the outer cover 200, so that the assembly process is simplified, and maintenance is facilitated. Meanwhile, when the spring 310 or the latch needs to be replaced, they can be easily disassembled for necessary maintenance or replacement.
[0044] In some embodiments of the present application, the latch has multiple specifications, and each specification of the latch is provided with a retaining ring of different size. In the axial direction of the latch, the axial thickness of the retaining ring is designed to be different, which means that the thickness of the retaining ring of different specifications of the latch is different, so as to adjust the compression amount and the pre-tightening force of the spring 310, thereby realizing accurate control of the head pressure. In actual application, suitable latches can be selected for assembly according to the shape and size of the head of the patient. For example, for the area of the head that is relatively convex, a latch with a smaller thickness of the retaining ring can be selected to reduce the compression amount of the spring 310; and for the area of the head that is relatively flat or concave, a latch with a larger thickness of the retaining ring can be selected to increase the compression amount of the spring 310, so as to push the elastic pressing plate 320 to abut against the induction electrode 110.
[0045] In some embodiments of the present application, the head cover 100 is made of elastic fabric material, which has good elasticity and air permeability, can adapt to different head sizes and shapes, and can ensure comfort during wearing. In order to stably connect the head cover 100 and the outer cover 200 together, a plurality of buckle connections are adopted, and the buckles are uniformly distributed on the inner wall of the outer cover 200, so as to ensure the stability and firmness of the connection between the head cover 100 and the outer cover 200.
[0046] In addition, in order to fix the cap on the head of the patient, a connecting band 120 is arranged at the lower end of the head cover 100, the connecting band 120 can pass around the chin of the patient and be fixed by buckles or magic tapes, so as to effectively prevent the cap from slipping or shifting during wearing. The patient can adjust the tightness of the head cover 100 and the length of the connecting band 120 according to the feeling of the patient, so as to ensure that the cap closely fits the head and provides the best comfort. At the same time, since the head cover 100 is made of elastic fabric material, even if it is worn for a long time, it will not bring too much pressure or discomfort to the wearer. It should be understood that the connecting band 120 can also be fixed with the outer cover 200, so as to provide more stable connection support for the outer cover 200.
[0047] Reference Figure 1In some embodiments of the present application, the outer cover 200 is made by injection molding process, which has the advantages of high precision, high production efficiency, low cost, etc., and is very suitable for manufacturing the outer cover 200. In order to ensure the structural strength of the outer cover 200, the thickness of the outer cover 200 is set to at least 3mm, which can not only resist wear and collision in daily use, but also maintain the overall shape and stability of the cap. In order to further enhance the structural strength and stability of the outer cover 200, a plurality of reinforcing ribs 210 are arranged on the outer wall of the outer cover 200, which are distributed in the form of radial or grid, which can effectively disperse the stress and pressure received by the outer cover 200, and prevent it from deforming or breaking due to excessive stress.
[0048] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.
Claims
1. A cap for collecting brain waves, characterized by, The utility model relates to a headgear for electroencephalogram (EEG) monitoring, comprising: a headgear connected with a plurality of sensing electrodes; a cover covering the outside of the headgear, the edge of the cover being connected with the headgear, a filling gap being formed between the cover and the headgear, a plurality of elastic filling components being arranged in the filling gap, the plurality of elastic filling components being distributed along the circumference of the cover, each of the sensing electrodes contacting at least one of the elastic filling components, the elastic filling components being capable of applying inward pressure to the headgear and the sensing electrodes.
2. The cap for collecting brainwaves according to claim 1, wherein: The elastic filling component is an air bag connected with an inflation tube, the inside of the cover being provided with a groove accommodating the inflation tube, the inflation tube being provided with a connector to connect an external air source.
3. The cap for collecting brainwaves according to claim 2, wherein: The cover is connected with a pressure regulating valve connected with the plurality of inflation tubes.
4. The cap for collecting brainwaves according to claim 2, wherein: The elastic filling component comprises two plastic sheets adhered together, a plurality of air storage cavities being arranged between the two plastic sheets to form the air bag, adjacent two of the air storage cavities being provided with a communication air passage.
5. The cap for collecting brainwaves according to claim 1, wherein: The elastic filling component comprises a spring and an elastic pressing plate, the two ends of the spring being connected with the cover and the elastic pressing plate respectively, the elastic pressing plate abutting against the headgear and the sensing electrodes.
6. The cap for collecting brainwaves according to claim 5, wherein: Each of the elastic pressing plates is connected with a plurality of springs, the plurality of springs being arranged in a matrix.
7. The cap for collecting brainwaves according to claim 5, wherein: The inner wall of the cover is provided with a radially arranged pin hole, a latch being arranged in the pin hole, the outer wall of the latch being provided with a stop ring, the spring being sleeved on the latch and abutting against the stop ring.
8. The cap for collecting brainwaves according to claim 7, wherein: The latch has a plurality of specifications, the size of the stop ring of each of the latches being different, the axial thickness of the stop ring being different along the axial direction of the latch.
9. The cap for collecting brainwaves according to claim 1, wherein: The headgear is made of elastic fabric, the headgear being connected with the cover through a plurality of buckles, the lower end of the headgear being provided with a connecting belt to fix the head of a patient.
10. The cap for collecting brainwaves according to claim 1, wherein: The cover is an injection molding part, the thickness of the cover being at least 3 mm, the outer wall of the cover being provided with a plurality of reinforcing ribs, the plurality of reinforcing ribs being arranged in a radial or grid shape.