Brain wave measuring device

Abstract

The present invention relates to an electroencephalograph which is made to adhere to a head of a subject as it is adjusted to a size suitable for the head of the subject. The electroencephalograph includes a main body portion to be mounted on the head of the subject, a sensor portion provided to the main body portion to detect an electrical signal generated from the head, a control portion to supply power to the sensor portion and convert the electrical signal detected by the sensor portion into an electroencephalogram signal, and an adjusting portion provided to the main body portion to adjust the size of the main body portion, the adjusting portion providing a restoring force to the main body portion.

Description

Technical Field

[0001] This invention relates to an electroencephalogram (EEG) measuring device. More specifically, it relates to an EEG measuring device that, by adjusting it to various sizes suitable for the head of a subject, allows the EEG measuring device to fit snugly against the head of the subject. Background Technology

[0002] To identify the functional mechanisms of the brain, various non-invasive measurement methods are typically used, such as electroencephalography (EEG), magnetoencephalography (MEG), and functional magnetic resonance imaging (fMRI).

[0003] Among these methods, electroencephalography (EEG), as an electrical signal, measures the flow of electrical currents within the brain caused by the synchronized activity of nerve cells on the surface of the cerebral cortex, using electrodes attached to the scalp. This non-invasive approach allows for the measurement of brain nerve cell activity information.

[0004] Compared to other brain function mapping methods, brain function research using EEG has many advantages, such as simple measurement methods, fewer environmental restrictions, low system configuration costs, and excellent time decomposition capabilities. Therefore, it can be used as the most basic research method in brain science engineering research.

[0005] Recently, in addition to its use in understanding simple brain electrophysiological mechanisms, EEG has been applied not only to machine learning and deep learning, but also to various other applications, including indirectly measuring human consciousness, emotions, and psychological states; diagnosing various neurological diseases such as Alzheimer's disease, anxiety disorders, schizophrenia, and depression; neurofeedback, which allows users to directly identify their own EEG state and control the methods needed to regulate their desired EEG state; brain-computer interfaces (BCIs), which use EEG to operate external devices or assist in communication; and research on therapeutic applications using electromagnetic fields to stimulate brain nerve cells.

[0006] In the aforementioned research areas, the electroencephalograms (EEGs) used are specified by a standard measurement method known as the 10-20 system. To record reliable EEGs, a minimum of 19 electrode channels is required, and it is recommended to use as many channels as possible. In a 10-20 system montage, the locations of these 19 electrodes are specified based on regions of the cerebral cortex.

[0007] Current EEG measurement systems use wet electrodes, which minimize electrical impedance between the scalp and the electrodes by using conductive gel. This can cause some discomfort to the subject (or examinee), and there is a drawback that the head needs to be washed after the EEG measurement.

[0008] As a way to improve these shortcomings, an electroencephalogram (EEG) system utilizing dry electrodes can be used.

[0009] Dry EEG measurement uses a method to improve conductivity by coating with a conductive polymer. Unlike wet electrodes, brush electrodes are typically used to improve conductivity because there is a relatively high possibility of non-adhesion between the scalp and the electrodes.

[0010] However, despite the above efforts, it is still impossible to overcome the pain caused by the electrode brush, the lack of adhesion between scalp electrodes due to differences in race, individual head shape and head size, and the problem of electrodes not contacting due to hair.

[0011] Therefore, multi-channel EEG measurement devices based on dry electrodes face the need to address the aforementioned issues. Summary of the Invention

[0012] Technical issues

[0013] According to one embodiment of the present invention, the object of the present invention is to provide an electroencephalogram (EEG) measuring device that can effectively measure EEG without considering individual differences in head shape and head size.

[0014] According to one embodiment of the present invention, another object of the present invention is to provide an electroencephalogram (EEG) measuring device that can change size according to individual head shape and head size differences.

[0015] According to one embodiment of the present invention, another object of the present invention is to provide an electroencephalogram (EEG) measuring device that can be sized to fit the head of the subject, particularly the forehead and back of the head.

[0016] According to one embodiment of the present invention, another object of the present invention is to provide an electroencephalogram (EEG) measuring device that can record reliable EEG even when the device size is changed according to head shape.

[0017] According to one embodiment of the present invention, another object of the present invention is to provide an electroencephalogram (EEG) measuring device that can fit snugly against the head of the examinee even when the device size is changed according to the head shape.

[0018] The technical problem to be solved by the present invention is not limited to the above-mentioned objectives. Those skilled in the art to which the present invention pertains can clearly understand other technical problems not mentioned through the following description.

[0019] Technical solution

[0020] To achieve the above objectives, an embodiment of the present invention provides an electroencephalogram (EEG) measuring device comprising: a main body mounted on the head of a subject; a sensing unit disposed on the main body for detecting electrical signals generated from the head; a control unit supplying power to the sensing unit and converting the electrical signals detected by the sensing unit into EEG signals; and an adjustment unit disposed on the main body for adjusting the size of the main body, wherein when the size of the main body increases, the adjustment unit provides a restoring force to the main body.

[0021] The main body includes: a side section, including a first side frame and a second side frame, the second side frame being spaced apart from the first side frame; and a connecting rib section, such that the first side frame and the second side frame are connected, and the adjustment section may be provided in the connecting rib section.

[0022] The aforementioned adjustment part includes: an adjustment housing; and a symmetrical moving part disposed inside the adjustment housing for moving the connecting rib to bring the connecting rib closer to or away from the adjustment housing. The connecting rib may include a connecting frame, which connects one side of the adjustment housing to one of the first side frame and the second side frame, and connects the other side of the adjustment housing to the remaining one of the first side frame and the second side frame.

[0023] The aforementioned symmetrical moving part includes: a first connecting rack, which connects one side of the adjusting housing to the connecting frame; a second connecting rack, which connects the other side of the adjusting housing to the connecting frame and is spaced apart from the first connecting rack; and a connecting pinion, which meshes with the first connecting rack and the second connecting rack respectively. When the connecting pinion rotates in the forward direction, the first connecting rack and the second connecting rack gradually approach each other. When the connecting pinion rotates in the reverse direction, the first connecting rack and the second connecting rack gradually move away from each other.

[0024] The aforementioned symmetrical moving part may further include an adjusting elastic component, which is combined with the aforementioned connecting pinion. When the aforementioned connecting pinion rotates in the reverse direction, the adjusting elastic component provides a restoring force to the aforementioned connecting pinion, causing the aforementioned connecting pinion to rotate in the forward direction.

[0025] The aforementioned adjustment part further includes a stop part for restricting the rotation of the aforementioned connecting pinion. The stop part includes: a locking member disposed at the end of the aforementioned connecting frame; and a protruding member disposed inside the aforementioned adjustment housing and in contact with the locking member. The protruding member may include: a first protruding member for restricting the forward rotation of the aforementioned connecting pinion; and a second protruding member that is further away from the aforementioned connecting pinion than the first protruding member for restricting the reverse rotation of the aforementioned connecting pinion.

[0026] The aforementioned adjustable housing includes a first-1 adjustable housing and a first-2 adjustable housing spaced apart from each other. The aforementioned connecting rib also includes a first movable housing, which is disposed between the first-1 adjustable housing and the first-2 adjustable housing. The aforementioned connecting frame may include: a first-1 connecting frame, which connects one of the first side frame and the second side frame to the first-1 adjustable housing; a first-2 connecting frame, which connects the first-1 adjustable housing and the first-2 adjustable housing and passes through the first movable housing; and a first-3 connecting frame, which connects the first-2 adjustable housing to the other of the first side frame and the second side frame.

[0027] The aforementioned adjustable housing includes a second-1 adjustable housing, a second-2 adjustable housing, and a second-3 adjustable housing spaced apart from each other. The aforementioned connecting rib includes: a second-1 movable housing disposed between the second-1 and second-2 adjustable housings; and a second-2 movable housing disposed between the second-2 and second-3 adjustable housings. The aforementioned connecting frame may include: a second-1 connecting frame, such that one of the first side frame and the second side frame is connected to the second-1 adjustable housing; a second-2 connecting frame, such that the second-1 and second-2 adjustable housings are connected and pass through the second-1 movable housing; a second-3 connecting frame, such that the second-2 and second-3 adjustable housings are connected and pass through the second-2 movable housing; and a second-4 connecting frame, such that the second-3 adjustable housing is connected to the other of the first side frame and the second side frame.

[0028] The aforementioned sensing unit may include: a sensor housing, one side of which is joined to the inner peripheral surface of the main body, and an opening formed on the other side; an electrode, which is joined to the interior of the sensor housing and protrudes through the opening; and an elastic member, disposed between one side of the sensor housing and the electrode, for providing elastic force to the electrode.

[0029] The aforementioned sensing unit may further include: a vibration unit disposed between the electrode and the elastic member and vibrating; and a light-emitting diode (LED) disposed inside the electrode for emitting infrared rays.

[0030] Other specific aspects of the present invention are described in the detailed embodiments and accompanying drawings.

[0031] The effects of the invention

[0032] According to one embodiment of the present invention, the present invention can effectively measure brain waves without considering individual differences in head shape and head size.

[0033] According to one embodiment of the present invention, the present invention provides an electroencephalogram (EEG) measuring device with variable dimensions.

[0034] According to one embodiment of the present invention, the electroencephalogram (EEG) measuring device provided by the present invention has a relatively large range of size variation in the forehead and back of the head of the examinee.

[0035] According to one embodiment of the present invention, even when the device size is changed according to head shape, the electroencephalogram (EEG) measuring device provided by the present invention can measure reliable EEG.

[0036] According to one embodiment of the present invention, even when the device size is changed according to the head shape, the electroencephalogram (EEG) measuring device provided by the present invention can be closely attached to the head of the examinee.

[0037] The effects of the present invention are not limited to those mentioned above. Those skilled in the art to which this invention pertains can clearly understand other effects not mentioned through the following description. Attached Figure Description

[0038] Figure 1 This diagram illustrates the state of the electroencephalogram (EEG) measuring device in a minimum size according to an embodiment of the present invention.

[0039] Figure 2 This diagram illustrates the state of the electroencephalogram (EEG) measuring device in one embodiment of the present invention when it is at its maximum size.

[0040] Figure 3 A diagram illustrating the sensing unit of an embodiment of the present invention.

[0041] Figure 4 A conceptual diagram illustrating the control unit of an embodiment of the present invention.

[0042] Figure 5 This is a state diagram showing the adjustment section in the case of the minimum size of the electroencephalogram measuring device according to an embodiment of the present invention.

[0043] Figure 6 This is a state diagram showing the adjustment section when the electroencephalogram (EEG) measuring device of one embodiment of the present invention is at its maximum size.

[0044] Figure 7 A diagram illustrating an adjustable elastic component according to an embodiment of the present invention.

[0045] Figure 8 A diagram illustrating a first type of connecting rib according to an embodiment of the present invention.

[0046] Figure 9 This diagram illustrates a second type of connecting rib according to an embodiment of the present invention.

[0047] Best practice

[0048] Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. The detailed description below is only intended to provide a comprehensive understanding of the methods, apparatus, and / or systems described in this specification. However, these are merely examples, and the present invention is not limited thereto.

[0049] In describing embodiments of the present invention, detailed descriptions of well-known technologies may be omitted if they are deemed potentially obscuring the spirit of the invention. Furthermore, the terminology used in the following description is defined for the purpose of understanding the functionality of the invention and may vary depending on the intentions or practices of the user or operator. Therefore, it should be defined based on the entire text of this specification. In the detailed description, the terminology used is for illustrative purposes only and is not intended to be limiting. Unless otherwise explicitly defined, singular expressions include plural expressions. In this specification, expressions such as "comprising" or "having" are used only to specify a characteristic, number, step, function, structural element, component, or combination thereof, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, functions, structural elements, components, or combinations thereof.

[0050] On the other hand, terms such as "first" and "second" are used only to describe multiple elements or structural features, and these elements or structural features are not limited to these terms. These terms are only used to distinguish one element or structural feature from other elements or structural features. Therefore, within the scope of the technical concept of this invention, the first element or first structural feature mentioned below may also be named a second element or second structural feature.

[0051] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless expressly defined in this specification, terms as defined in commonly used dictionaries should not be interpreted as having overly idealized or formalistic meanings.

[0052] The following is for reference Figures 1 to 2 The overall structure of the electroencephalogram (EEG) measuring device 10 according to an embodiment of the present invention is described.

[0053] Figure 1 Part (a) is a state diagram showing the smallest size of the EEG measuring device 10 as viewed from the front. Figure 1 Part (b) is a state diagram showing the smallest size of the electroencephalogram (EEG) measuring device 10 as viewed from below. Figure 1 Part (c) is a diagram showing the side face at its minimum size.

[0054] Figure 2 Part (a) is a state diagram showing the EEG measuring device 10 at its largest size when viewed from the front. Figure 2 Part (b) is a state diagram showing the largest size of the EEG measuring device 10 as viewed from below. Figure 2 Part (c) is a diagram showing the side face at its maximum size.

[0055] An embodiment of the electroencephalogram (EEG) measuring device 10 of the present invention includes: a main body 100, mounted on the head of a subject; a sensing unit 200 disposed on the main body 100 for detecting electrical signals generated from the head of the subject; a control unit 300 for supplying power to the sensing unit 200 and converting the electrical signals detected by the sensing unit 200 into EEG signals; and an adjustment unit 400 disposed on the main body 100 for adjusting the size of the main body 100.

[0056] When the size of the main body 100 increases, the aforementioned adjustment unit 400 provides a restoring force to the main body 100 to restore it to its original size before the increase. The following refers to this process. Figure 7 The following explanation is provided. The increase in the size of the main body 100 refers to an increase in the distance between the multiple structures constituting the main body. Furthermore, the increase in the size of the main body 100 can also indicate a state where a structure among the multiple structures constituting the main body that is connected to the adjustment section 400 moves relative to the adjustment section 400 and moves away from the adjustment section 400.

[0057] In one embodiment of the present invention, the main body 100 is shaped to be installed on the head of the examinee and may include at least a portion of the examinee's head.

[0058] Therefore, the main body 100 includes: a side part 110, including a first side frame 111 and a second side frame 113, wherein the second side frame 113 is spaced apart from the first side frame 111; and a connecting rib part 120, which connects the first side frame 111 and the second side frame 113.

[0059] The side portion 110 has connecting ribs 120 fixed on both sides, which can provide a sense of stability when the main body 100 is installed on the head of the person being inspected.

[0060] Multiple connecting ribs 120 are formed and can be spaced apart along the front-to-back direction. In other words, the connecting ribs 120 may include a first connecting rib 120a, a second connecting rib 120b, a third connecting rib 120c, a fourth connecting rib 120d, and a fifth connecting rib 120e, which are spaced apart from the front to the rear. Of course, a single connecting rib 120 may be formed, or more than six may be formed, but in the above-described 10-20 system, five are preferred.

[0061] When multiple connecting rib portions 120 are formed, the side portion 110 may include branches for supporting the multiple connecting rib portions 120 at both ends.

[0062] Specifically, the first side frame 111 may include: a first side body 1111; and a first branch 1113, of which a plurality of branches are formed on the first side body 1111. The first branch 1113 is formed in a plurality of (1113a to 1113e) and is spaced apart from each other, and can be combined with the plurality of first adjustment housings 410 described below.

[0063] Similarly, the second side frame 113 may include: a second side body 1131; and a plurality of second branches 1133 formed on the second side body 1131. The plurality of second branches 1133 (1133a to 1133e) are formed and spaced apart from each other, and can be combined with the plurality of first adjustment housings 410 described below.

[0064] In other words, the first branch 1113 can be combined with one end of the connecting rib 120, and the second branch 1133 can be combined with the other end of the connecting rib 120.

[0065] The aforementioned adjustment part 400 is provided in the aforementioned connecting rib part 120 and can be used to adjust the size of the aforementioned connecting rib part 120.

[0066] Therefore, the multiple connecting ribs 120 can be formed as multiple frames or housings. In this case, the adjusting part 400 is provided between the multiple frames or housings, allowing the frames or housings to move about or away from the adjusting part 400. The aforementioned multiple frames or housings can be referred to as connecting rib frames or connecting rib housings. Connecting rib housings can include various types.

[0067] Therefore, the adjustment part 400 is formed in one or more of the multiple connecting ribs 120, and the size of the main body 100 can be adjusted by elasticity.

[0068] On the other hand, the sensor 200 is used to detect electrical signals emanating from a portion of the subject's head. In this case, it is preferable to have multiple sensor 200s. As described above, in the case of a 10-20 system, since 19 electrode channels are required, the more sensor 200s there are, the more reliable the measurable brain waves become.

[0069] However, even if multiple sensor units 200 are provided, the overall structure of each sensor unit 200 is the same.

[0070] The following is for reference Figure 3 The sensing unit 200 of one embodiment of the present invention will be described.

[0071] Figure 3 Part (a) is a cross-sectional view showing a sensing unit 200 according to an embodiment of the present invention. Figure 3 Part (b) is a diagram showing a vibration section 240 according to an embodiment of the present invention.

[0072] The sensing unit 200 includes: a sensor housing 210; and an electrode unit 220, which is located inside the sensor housing 210 and contacts the head of the person being examined.

[0073] The sensor housing 210 can be provided on the inner peripheral surface of the main body 100. On the other hand, the inner peripheral surface of the main body 100 refers to the surface facing the head of the person being examined.

[0074] Specifically, the sensor housing 210 may be disposed in at least one of the side portion 110 and the connecting rib portion 120. For example, the sensor housing 210 may be disposed in the first side frame 111 and the second side frame 113 respectively, and may be disposed on the inner peripheral surface of the connecting rib portion 120.

[0075] However, if multiple sensing units 200 are provided, the aforementioned sensor housing 210 may also be provided in the adjustment unit 400.

[0076] The sensor housing 210 is provided on one side of the inner circumferential surface of the main body 100 or the adjustment part 400, and an opening 211 is formed on the other side.

[0077] The electrode portion 220 is disposed inside the sensor housing 210 and can protrude outward from the sensor housing 210 through the opening 211. In other words, a portion of the electrode portion 220 is located inside the sensor housing 210, and the remaining portion of the electrode portion 220 may be located outside the sensor housing 210.

[0078] The electrode portion 220 may include: an electrode housing 221 disposed inside the sensor housing 210; and an electrode 223 disposed in the electrode housing 221 and exposed outside the sensor housing 210 through the opening 211.

[0079] The electrode housing 221 may include: a circular plate frame 2211, spaced apart from the electrode 223; a first protrusion 2213, protruding from the circular plate frame 2211 and combined with the electrode 223; and a second protrusion 2215, protruding from the circular plate frame 2211 in a direction gradually away from the electrode 223.

[0080] The aforementioned electrodes 223 are in contact with the head of the person being examined and are used to detect electrical signals generated from the head of the person being examined. Multiple electrodes can be formed. When multiple electrodes 223 are provided, the multiple electrodes can surround the aforementioned first protrusion 2213.

[0081] However, when the electrode 223 is a single electrode, the surface that contacts the head of the person being examined can be formed into a flat cylindrical shape.

[0082] Furthermore, regardless of the shape of the electrode 223, silver (Ag) or silver chloride (AgCl) can be coated on the electrode 223.

[0083] Therefore, when the main body 100 is installed on the head of the examinee, the sensing unit 200 can detect electrical signals emanating from the examinee's head, and the detected electrical signals can be transmitted to the control unit 300. In this case, the sensing unit 200 may also include a printed circuit board 250 for transmitting the electrical signals detected by the electrode unit 220 to the control unit 300 or directly converting them into electroencephalogram (EEG) signals. The printed circuit board 250 can supply power to the electrode unit 220.

[0084] However, the main body 100 may not be able to adhere tightly to the head of the person being examined due to hair or other factors, or it may be difficult to maintain a tight fit.

[0085] Therefore, the sensing unit 200 may further include at least one of an elastic member 230 or a vibration member 240. The elastic member 230 is disposed inside the sensor housing 210 and is used to provide elastic force to the electrode unit 220. The vibration member 240 is disposed inside the sensor housing 210 and is used to provide vibration to the electrode unit 220.

[0086] The elastic member 230 is disposed between one side of the sensor housing 210 and the electrode portion 220, and can provide elastic force to the electrode portion 220. Specifically, one end of the elastic member 230 is disposed on the circular plate frame 2211, and the other end can be disposed on one side of the sensor housing 210. In this case, the elastic member 230 can surround the second protrusion 2215.

[0087] There are no restrictions on the shape of the elastic component 230, as long as it can provide elastic force. For example, the elastic component 230 can be a coil spring.

[0088] Therefore, when the electrode part 220 contacts the head of the examinee, the resistance experienced by the examinee can be reduced. Furthermore, after the main body part 100 is installed on the examinee, the main body part 100 can be kept in close contact with the examinee's head.

[0089] The aforementioned vibration unit 240 may include: a vibration frame 241; a vibration component 243 disposed on one side of the aforementioned vibration frame 241 and vibrating; and a vibration power supply unit 245 for supplying power to the aforementioned vibration component 243.

[0090] The aforementioned vibration power supply unit 245 can receive power from the aforementioned printed circuit board 250 or the aforementioned control unit 300 and transmit it to the aforementioned vibration component 243.

[0091] Preferably, the vibration part 240 is disposed adjacent to the electrode part 220, transmitting vibration to the electrode part 220. More preferably, the vibration part 240 may be disposed between the elastic member 230 and the electrode 223. This is because the positional change caused by the elastic member 230 to the electrode part 220 is greater than the positional change caused by the vibration part 240 to the electrode part 220.

[0092] Therefore, when the main body 100 is installed on the head of the person being examined, the elastic member 230 can make the main body 100 fit tightly against the head of the person being examined in one go, and the vibration member 240 can minimize the intermittent separation between the main body 100 and the head of the person being examined.

[0093] On the other hand, the aforementioned sensing unit 200 may also include a light-emitting diode (LED) 260, which is disposed in the aforementioned electrode unit 220 and is used to emit infrared light (preferably near-infrared). The aforementioned LED 260 may be surrounded by a plurality of electrodes 223.

[0094] The following is for reference Figure 4 The control unit 300 of one embodiment of the present invention will be described.

[0095] Figure 4This is a conceptual diagram of a control unit 300 according to an embodiment of the present invention.

[0096] The control unit 300 can be provided as a separate structure on the printed circuit board 250. In other words, the printed circuit board 250 can carry the functions of the control unit 300, but the printed circuit board 250 and the control unit 300 can be separated from each other and exchange information.

[0097] The printed circuit board 250 may include: an amplification and filtering unit 251, which receives electrical signals from the electrode unit 220 and filters or amplifies them; an analog-digital converter (ADC) 253, which converts the information processed by the amplification and filtering unit 251 into digital information; and a signal output unit 255, which transmits the digital information converted by the ADC 253 to the control unit 300.

[0098] The control unit 300 may include: a microprocessor (MCU) 310, which receives information from the signal output unit 255 and converts it into brainwave signals based on a stored algorithm; a wireless communication unit 320, which receives brainwave signals from the microprocessor 310 and transmits them to an external device (mobile device, etc.); and a power supply unit 330, which supplies power to the printed circuit board 250 and the microprocessor 310.

[0099] However, the aforementioned amplification and filtering unit 251, the aforementioned analog-to-digital converter 253, and the aforementioned signal output unit 255 may all be provided in the control unit 300.

[0100] Therefore, the electrical signals emanating from the subject's head can be converted into brainwave signals and transmitted to an external device, which the user can then use to confirm the subject's brainwave information.

[0101] On the other hand, regardless of whether the main body 100 is in close contact with the subject's head, the subject's head can be of various sizes. In other words, when the main body 100 is of a specific size, the following problems may occur: it may be difficult to install it on a specific subject's head or the measured EEG signals may be unreliable.

[0102] The following is for reference Figures 5 to 7 The adjustment unit 400 is described to solve the above problems.

[0103] Figure 5 Part (a) is a diagram showing the state of the adjustment unit as viewed from above when the electroencephalogram measuring device of one embodiment of the present invention is in its smallest size. Figure 5 Part (b) is a cross-sectional view showing the adjustment section in the case of the minimum size of the electroencephalogram measuring device according to an embodiment of the present invention.

[0104] Figure 6 Part (a) is a diagram showing the state of the adjustment unit as viewed from above when the electroencephalogram measuring device of one embodiment of the present invention is at its maximum size. Figure 6 Part (b) is a cross-sectional view showing the adjustment section when the electroencephalogram measuring device of an embodiment of the present invention is at its maximum size.

[0105] Figure 7 Part (a) is a state diagram showing the adjustment elastic member being disposed in the adjustment section according to an embodiment of the present invention. Figure 7 Part (b) is a diagram showing the adjustable elastic component.

[0106] Reference Figures 5 to 6 The adjustment unit 400 may include: an adjustment housing 410; and a symmetrical moving part 420 disposed inside the adjustment housing 410 for moving the connecting rib 120 to approach or move away from the adjustment housing 410. The adjustment housing 410 is formed inside the connecting rib housing, and may also be defined as an adjustment housing 410, a connecting rib housing, or other structures, depending on the situation.

[0107] In this case, the connecting rib portion 120 may also include a connecting frame 130 that connects the adjusting housing 410 to the side portion 110.

[0108] The connecting frame 130 allows the inner side of the adjusting housing 410 to be connected to one of the first side frame 111 and the second side frame 113, and also allows the inner side of the adjusting housing 410 to be connected to the remaining one of the first side frame 111 and the second side frame 113. In other words, the connecting frame 130 allows one side of the adjusting housing 410 to be connected to the side portion 110, and the other side of the adjusting housing 410 to be connected to the side portion 110.

[0109] That is, the connection frame 130 is not a single frame, but can be composed of multiple frames.

[0110] On the other hand, the connecting frame 130 may be made of a flexible material that provides elasticity to allow the connecting frame 130 to tilt slightly according to the user's head shape and size.

[0111] A space is formed inside the adjusting housing 410 in which the connecting frame 130 can move. As described below, the connecting frame 130 can move towards the interior of the adjusting housing 410 from both sides. Therefore, the adjusting housing 410 may include a connecting guide 413, which is disposed inside the adjusting housing 410 to guide the movement of the connecting frame 130.

[0112] The aforementioned symmetrical moving part 420 may include: a first connecting rack 421, which connects one side of the adjusting housing 410 to the connecting frame 130; a second connecting rack 423, which connects the other side of the adjusting housing 410 to the connecting frame 130 and is spaced apart from the first connecting rack 421; and a connecting pinion 425, which meshes with the first connecting rack 421 and the second connecting rack 423 respectively.

[0113] The first connecting rack 421 allows one of the multiple frames constituting the connecting frame 130 to be connected to the inside of the adjusting housing 410, and the second connecting rack 423 allows the remaining one of the multiple frames constituting the connecting frame 130 to be connected to the inside of the adjusting housing 410.

[0114] Therefore, when the connecting pinion 425 rotates along the first direction R1, the connecting frames 130 located on both sides of the adjusting housing 410 can move in a direction that approaches each other, and when the connecting pinion 425 rotates along the second direction R2, the connecting frames 130 located on both sides of the adjusting housing 410 can move in a direction that moves away from each other.

[0115] Wherein, the first direction R1 refers to the positive direction or clockwise direction, and the second direction R2 refers to the negative direction or counterclockwise direction (based on the attached diagram).

[0116] Therefore, when the connecting pinion 425 rotates in the forward direction, the first connecting pinion 421 and the second connecting pinion 423 can move in a direction that approaches each other, and when the connecting pinion 425 rotates in the reverse direction, the first connecting rack 421 and the second connecting rack 423 can move in a direction that moves away from each other.

[0117] However, when the connecting pinion 425 rotates continuously in the forward or reverse direction, problems may occur where the first connecting rack 421 and the second connecting rack 423 collide with each other or detach from the inside of the adjusting housing 410.

[0118] To solve the above problems, the adjusting part 400 may also include a stop part 430 for limiting the rotation of the connecting pinion 425.

[0119] The aforementioned stop portion 430 may include a protruding member 433, which causes the first connecting rack 421 and the second connecting rack 423 to come into contact.

[0120] The protruding component 433 includes: a first protruding component 4331, which allows the opposing surfaces (first surfaces) of the first connecting rack 421 and the second connecting rack 423 to contact each other; and a second protruding component 4333, which allows the first protruding component 4331 to contact the other surface (second surface) of the first connecting rack 421 and the other surface (second surface) of the second connecting rack 423.

[0121] The first protruding member 4331 limits the maximum movement distance of the movable housings 140 at both ends as they gradually approach the adjusting part 400 by rotating the connecting pinion 425. The second protruding member 4333 limits the maximum movement distance of the movable housings 140 at both ends as they gradually move away from the adjusting part 400 by rotating the connecting pinion 425 in the opposite direction. Depending on the type of connecting rib, each connecting rib may be provided with one or more movable housings 140.

[0122] The first protruding part 4331 is used to restrict the forward rotation of the connecting pinion 425, and the second protruding part 4333 can be used to restrict the reverse rotation of the connecting pinion 425.

[0123] The aforementioned first protruding member 4331 is disposed inside the aforementioned adjusting housing 410 and can be configured adjacent to the connecting pinion 425. Furthermore, multiple first protruding members 4331 can be provided, which can contact the first connecting rack 421 or the second connecting rack 423.

[0124] The second protruding member 4331 is disposed inside the adjusting housing 410 and can be located further away from the connecting pinion 425 than the first protruding member 4331. In this case, the second protruding member 4331 can be part of the adjusting housing 410. More specifically, openings 411 that allow the connecting frame 130 to move can be formed on both sides of the adjusting housing 410. In this case, the second protruding member 4331 can contact the portions on both sides of the adjusting housing 410 other than the openings 411.

[0125] Therefore, the symmetrical moving part 420 can change the size of the connecting rib part 120, and ultimately, the size of the main body part 100 can be changed. Thus, even if the size of the examinee's head varies, the main body part 100 can be installed on the examinee's head via the symmetrical moving part 420.

[0126] However, if the main body 100 is installed on the head of the examinee, it needs to be tightly attached to the head of the examinee. In other words, if the main body 100 cannot be kept in close contact with the head of the examinee, it will be difficult to generate reliable brainwave signals.

[0127] Of course, as mentioned above, the sensing unit 200 may include a structure for close contact (e.g., an elastic member or a vibrating member), which, within the size limitations of the main body 100, refers to a structure that allows the electrode unit 220 to be close to the head of the person being examined.

[0128] Therefore, it is not limited to the electrode part 220, but the main body part 100 itself needs to be closely attached to the head of the person being examined.

[0129] Reference Figure 7 The symmetrical moving part 420 may also include an adjusting elastic member 427, which is combined with a connecting pinion 425 so that the main body 100 is in close contact with the head of the person being examined.

[0130] The aforementioned adjusting elastic member 427 refers to a structure that provides a restoring force to the main body 100. In other words, the aforementioned adjusting elastic member 427 is a structure that restores the size of the main body 100 to its original size when the main body 100 changes to a predetermined size or larger.

[0131] The aforementioned adjusting elastic component 427 can be a spiral spring or a flat spring.

[0132] exist Figure 7 In this context, the aforementioned adjusting elastic component 427 is a helical spring; however, there are no restrictions on its shape, as long as it can provide restoring force.

[0133] The adjusting elastic member 427 can be engaged with the connecting pinion 425 to provide a restoring force to the connecting pinion 425. For this purpose, the connecting pinion 425 may include: a pinion housing 4253; a gear portion 4251, which is engaged with one side of the pinion housing 4253 and meshes with the connecting racks 421 and 423; and a fastening portion 4255, which is engaged with the other side of the pinion housing 4253 and is engaged with the adjusting elastic member 427.

[0134] The fastening part 4255 forms the rotation axis of the gear part 4251, and at the same time, it can provide displacement to the adjusting elastic member 427.

[0135] Specifically, if the connecting pinion 425 rotates due to the connecting racks 421 and 423, then the fastening part 4255, which serves as the rotation axis of the connecting pinion 425, rotates together with the connecting pinion 425. In this case, the rotating fastening part 4255 causes the adjusting elastic member 427 to rotate, and the rotating adjusting elastic member 427 provides a restoring force.

[0136] In this case, the adjusting elastic member 427 may include a fixing part 4271, which is fixed to the adjusting housing 410. With the fixing part 4271 fixed to the adjusting housing 410, the adjusting elastic member 427 can provide a restoring force to the connecting pinion 425.

[0137] Therefore, when the connecting pinion 425 rotates in the reverse direction, the adjusting elastic member 427 can make the connecting pinion 425 rotate in the forward direction by providing a restoring force to the connecting pinion 425.

[0138] Therefore, the adjustment unit 400 not only changes the size of the main body 100, but also provides a restoring force to the main body 100 so that the main body 100 fits tightly against the head of the person being examined.

[0139] On the other hand, the position of the multiple sensing units 200 becomes particularly important as the size of the main body 100 changes. When the size of the main body 100 changes, the position of the sensing units 200 also changes, and therefore, the change in the position of the sensing units 200 can reduce the reliability of the EEG signal.

[0140] Therefore, in one embodiment of the present invention, the connecting rib portion 120 is divided into two types, and the sensing portion 200 can be configured in each type.

[0141] The following is for reference Figures 1 to 2 , Figures 5 to 6 , Figures 8 to 9 Explain the connection ribs 120 of the two types.

[0142] Figure 8 A diagram illustrating a first type of connecting rib according to an embodiment of the present invention is provided. Figure 9 This diagram illustrates a second type of connecting rib according to an embodiment of the present invention. The adjusting housing can be interpreted as a partial structure of the connecting rib housing or a concept such as the connecting rib housing itself.

[0143] The first type of connecting rib 121 may include two adjusting housings 410 and three connecting frames 130.

[0144] The first type of connecting rib 121 and the second type of connecting rib 123 may each include a movable housing 140. Based on the aforementioned adjusting housing 410, the movable housing 140, as a movable structure, can be combined with the sensing unit 200.

[0145] The aforementioned connecting frame 130 can be fixed to the aforementioned movable housing 140 and move together with it.

[0146] That is, the adjustment unit 400 allows the connecting frame 130, which is arranged on both sides with the adjustment housing 410 as a reference, to move. The movable housing 140 is fixed to the connecting frame 130 and can move simultaneously with the connecting frame 130.

[0147] Therefore, the sensing unit 200, which is combined with the movable housing 140, can move in a manner that approaches or moves away from the adjusting housing 410.

[0148] Specifically, the adjustment housing 410 may include a first-1 adjustment housing 410a and a first-2 adjustment housing 410b, wherein the first-2 adjustment housing 410b is spaced apart from the first-1 adjustment housing 410a.

[0149] The aforementioned connecting rib portion 120 may include a first movable housing 140a, which is disposed between the aforementioned first-1 adjusting housing 410a and the aforementioned first-2 adjusting housing 410b.

[0150] The aforementioned connecting frame 130 may include: a first-1 connecting frame 130a, such that one of the first side frame 111 and the second side frame 113 is connected to the first-1 adjusting housing 410a; a first-2 connecting frame 130b, such that the first-1 adjusting housing 410a and the first-2 adjusting housing 410b are connected, passing through the first movable housing 140a; and a first-3 connecting frame 130c, such that the first-2 adjusting housing 410b is connected to the remaining one of the first side frame 111 and the second side frame 113.

[0151] The first type of connecting rib 121 may include the first-1 adjusting housing 410a and the first-2 adjusting housing 410b, the first movable housing 140a, the first-1 connecting frame 130a, the first-2 connecting frame 130b and the first-3 connecting frame 130c.

[0152] Unlike the above, Figure 9 The second type of adjustment housing 410 shown may include a second-1 adjustment housing 410c, a second-2 adjustment housing 410d and a second-3 adjustment housing 410e spaced apart from each other.

[0153] The connecting rib 130 may include: a second-first movable housing 140b, disposed between the second-first adjusting housing 410c and the second-second adjusting housing 410d; and a second-second movable housing 140c, disposed between the second-second adjusting housing 410d and the second-third adjusting housing 410e.

[0154] The aforementioned connecting frame 130 may include: a second-first connecting frame 130d, such that one of the first side frame 111 and the second side frame 113 is connected to the second-first adjusting housing 410c; a second-second connecting frame 130e, such that the second-first adjusting housing 410c is connected to the second-second adjusting housing 410d and passes through the second-first movable housing 140b; a second-third connecting frame 130f, such that the second-second adjusting housing 410d is connected to the second-third adjusting housing 410e and passes through the second-second movable housing 140c; and a second-fourth connecting frame 130g, such that the second-third adjusting housing 410e is connected to the remaining one of the first side frame 111 and the second side frame 113.

[0155] The second type of connecting rib 123 may include the second-1 adjusting housing 410c, the second-2 adjusting housing 410d, the second-3 adjusting housing 410e, the second-1 movable housing 140b, the second-2 movable housing 140c, the second-1 connecting frame 130d, the second-2 connecting frame 130e, the second-3 connecting frame 130f, and the second-4 connecting frame 130g.

[0156] The connecting ribs 120 are divided into a first type 121 and a second type 123, which makes it easier for the main body 100 to be installed on the head of the person being examined. Therefore, preferably, when there are 5 connecting ribs, a portion of the 5 connecting ribs are of the first type 121 and the remaining portion are of the second type 123.

[0157] Preferably, the first connecting rib 120a and the fifth connecting rib 120e are of the second type 123, and the second connecting rib 120b to the fourth connecting rib 120d are of the first type 121. In the examinee's head, dimensional variations are particularly pronounced in the forehead and occipital regions. Therefore, after preferentially installing the second connecting rib 120b to the fourth connecting rib 120d on the examinee's head, the first connecting rib 120a and the fifth connecting rib 120e can be adjusted to ensure proper installation.

[0158] Thus, the sensing units 200, which are respectively provided on the side part 110, the adjustment shell 410 and the movable shell 140, can measure reliable brainwave signals on the head of the examinee.

[0159] The following section explains the structures used for effectively detecting brainwave signals.

[0160] Preferably, in the case of the first type of connecting rib 121, among the multiple surfaces forming the first movable housing 140a, the sensing part 200 provided on the movable housing 140 should be located at the center of the surface facing the head of the person being examined. Furthermore, preferably, the first adjusting housing 410a and the first-second adjusting housing 410b, located on both sides of the first movable housing 140a respectively, can be formed with the same shape and are symmetrical to each other with respect to the first movable housing 140a.

[0161] Preferably, in the case of the second type of connecting rib 123, among the multiple surfaces forming the second-2 adjustment housing 410d, the sensing part 200 provided in the second-2 adjustment housing 410d should be located at the center of the surface facing the head of the person being examined.

[0162] Preferably, the second-1 movable housing 140b and the second-2 movable housing 140c can be formed with the same shape and are symmetrical to each other with the second-2 adjusting housing 140d as a reference.

[0163] Preferably, the second-1 adjusting housing 410c and the second-3 adjusting housing 410e have the same shape and are symmetrical to each other with reference to the second-2 adjusting housing 410d.

[0164] Furthermore, preferably, the sensing units 200 provided in the 2-1 movable housing 140b are symmetrical with respect to the sensing units 200 provided in the 2-2 movable housing 140c and the sensing units 200 provided in the 2-2 adjusting housing 410d. Therefore, the distances D1 and D2 between the sensing units 200 provided in the 2-2 adjusting housing 410d and the sensing units 200 provided in the 2-1 movable housing 140b can be the same as the distances D1 and D2 between the sensing units 200 provided in the 2-2 adjusting housing 410d and the sensing units 200 provided in the 2-2 movable housing 140c.

[0165] On the other hand, the 2-1 movable housing 140b may be provided with a first extension extending toward the 2-2 adjusting housing 410d on the side facing the head of the person being examined, and the first extension may be combined with the sensing unit 200.

[0166] Similarly, the second-2 movable housing 140c may be provided with a second extension extending toward the second-2 adjustable housing 410d on the side facing the head of the person being examined, and the second extension may be combined with the sensing unit 200.

[0167] In the above case, the second-2 adjusting housing 410d may have a recessed groove 415 formed on the side facing the head of the person being examined, so as to accommodate the first extension and the second extension.

[0168] While representative embodiments of the present invention have been described in detail above, it should be understood that those skilled in the art can make various modifications to the invention without departing from its scope. Therefore, the scope of protection of the present invention is not limited to the embodiments described above, but should be defined based on the appended claims and their equivalents. Detailed Implementation

[0169] The above-described content represents the best implementation method for carrying out the present invention.

[0170] Industrial availability

[0171] This invention measures brainwaves by touching the user's body, and thus can be applied to fields that provide a variety of predictive information.

Claims

1. A brainwave measuring device, characterized in that, include: The main body is installed on the head of the person being inspected; A sensing unit, installed in the aforementioned main body, is used to detect electrical signals generated from the head; The control unit supplies power to the aforementioned sensing unit and converts the electrical signals detected by the aforementioned sensing unit into electroencephalogram (EEG) signals; and An adjustment section is provided in the main body section for adjusting the dimensions of the main body section. The main body is composed of multiple interconnected segments that are movable relative to each other. Each segment is moved closer to the adjacent segment by a force from the adjustment unit. The aforementioned main body includes: The side portion includes a first side frame and a second side frame, wherein the second side frame is spaced apart from the first side frame; and Multiple connecting ribs connect the first side frame to the second side frame. The aforementioned adjustment part is provided in the aforementioned connecting rib part, and when the size of the aforementioned main body part increases, the aforementioned adjustment part provides a restoring force to the aforementioned main body part.

2. The electroencephalogram (EEG) measuring device according to claim 1, characterized in that, The aforementioned multiple connecting ribs include: Multiple connecting ribs on the outer shell; One or more movable housings are connected to the aforementioned connecting rib housings and are movable relative to the aforementioned connecting rib housings; and The connecting frame connects the connecting rib shell to the side portion or connects the connecting rib shell to the movable shell. The aforementioned adjustment section is formed on the aforementioned plurality of connecting rib shells.

3. The electroencephalogram (EEG) measuring device according to claim 2, characterized in that, The aforementioned adjustment unit includes: Adjustable housing, provided in the aforementioned connecting rib housing; and A symmetrical moving part is provided inside the aforementioned adjusting housing, which allows the respective connecting frames connected to both ends of the aforementioned adjusting housing to move.

4. The electroencephalogram (EEG) measuring device according to claim 3, characterized in that, The aforementioned symmetrical moving part includes: The first connecting rack connects one side of the aforementioned adjusting housing to the aforementioned connecting frame; The second connecting rack connects the other side of the aforementioned adjusting housing to another of the aforementioned connecting frames, spaced apart from the aforementioned first connecting rack; and The connecting pinion meshes with both the first and second connecting racks. The first connecting rack and the second connecting rack are facing each other.

5. The electroencephalogram (EEG) measuring device according to claim 4, characterized in that, The aforementioned symmetrical moving part also includes an adjusting elastic component, which is combined with the aforementioned connecting pinion. When the connecting pinion rotates in one direction, it provides a restoring force in the opposite direction relative to the connecting pinion.

6. The electroencephalogram (EEG) measuring device according to claim 4, characterized in that, The aforementioned adjusting part also includes a stop part for limiting the rotation of the aforementioned connecting pinion. The aforementioned stop includes: The first protruding member is provided in such a way that it can contact one side of the first connecting rack and one side of the second connecting rack, respectively; and The second protruding component is provided in such a way that it can contact the other side of the first connecting rack and the other side of the second connecting rack, respectively.

7. The electroencephalogram (EEG) measuring device according to claim 3, characterized in that, In a portion of the aforementioned plurality of connecting ribs, the connecting rib housing includes: The first connecting rib shell is connected to the aforementioned first side frame; and The second connecting rib shell is connected to the aforementioned second side frame. The aforementioned movable housing includes a first movable housing, which connects the first connecting rib housing to the second connecting rib housing.

8. The electroencephalogram (EEG) measuring device according to claim 7, characterized in that, In a portion of the aforementioned plurality of connecting ribs, the connecting rib housing includes: The first connecting rib shell is connected to the aforementioned first side frame; The second connecting rib shell is connected to the aforementioned second side frame; and Third connecting rib shell, The aforementioned movable housing includes: A first movable housing, such that the first connecting rib housing is connected to the third connecting rib housing; and The second movable housing connects the second connecting rib housing to the third connecting rib housing.

9. The electroencephalogram (EEG) measuring device according to claim 1, characterized in that, The aforementioned sensing unit includes: The sensor housing is joined to the inner circumferential surface of the main body on one side, and has an opening on the other side; Electrodes, integrated inside the aforementioned sensor housing, protrude through the aforementioned opening; and An elastic component is disposed on one side of the sensor housing between the electrode and the electrode, for providing elastic force to the electrode.

10. The electroencephalogram (EEG) measuring device according to claim 9, characterized in that, The aforementioned sensing unit also includes: A vibrating part is disposed between the electrode and the elastic member and vibrates; and A light-emitting diode, located inside the aforementioned electrodes, is used to emit infrared light.

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