Brain wave measuring device

Abstract

To provide a brain wave measuring device.SOLUTION: A brain wave measuring device 1 comprises: a spectacle type measuring device body 2 worn by a measurement object person; a brain wave electrode 4 which is coupled to the spectacle type measuring device body 2 and detects a brain wave signal of the measurement object person; and an electrode position adjustment mechanism unit 5 for adjusting a relative position of the brain wave electrode 4 to the spectacle type measuring device body 2 in a vertical direction B and / or in a horizontal direction C, and arranging the brain wave electrode 4 on a brain wave detection position P of the measurement object person. In addition, the spectacle type measuring device body 2 comprises: a brain wave measurement module which is electrically coupled to the brain wave electrode 4, and measures the brain wave of the measurement object person on the basis of the detected brain wave signal; and a communication module for transmitting to the outside, the brain wave data related to the measured brain wave.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an electroencephalogram (EEG) measuring device, and more particularly to an EEG measuring device capable of stably measuring electroencephalograms on a daily basis without causing discomfort to people around the device. [Background technology]

[0002] Conventionally, the health condition of patients suffering from various diseases mainly caused by brain function such as epilepsy and elderly people who require nursing care has been monitored by measuring electroencephalograms, which are a type of biological information, over time. Furthermore, athletes of various sports and e-sports players measure their electroencephalograms during competitions and training in order to improve their abilities and performance, and change their training menus by recognizing their own shortcomings and areas that need strengthening based on the obtained electroencephalogram data. Thus, in recent years, opportunities to measure electroencephalograms have increased more than ever before.

[0003] The human brain is said to be composed of more than 10 billion nerve cells, and it is known that these nerve cells emit weak electrical signals (action potentials) when transmitting information. Detecting the amount of electricity in such electrical signals (EEG signals) makes it possible to measure EEG. For example, EEG measurements are performed by placing electrodes on the subject's head at a number of predefined positions, particularly where there is no hair, and detecting weak EEG signals using such electrodes. Here, the international 10 / 20 method, which has been known as a standard method for attaching electrodes to the head, is commonly used.

[0004] If the electrodes cannot be placed at the correct positions on the subject's head, the detection of the brainwave signal is unstable, and accurate brainwave measurement cannot be performed. Therefore, for example, headgear-type or headset-type brainwave measuring devices have already been developed, and brainwaves are measured using a headgear or the like worn by the subject that has multiple electrodes placed on it. Alternatively, a type of brainwave measuring device that places electrodes on four positions, directly above the left and right prefrontal cortex (frontal lobe) of the subject's head and behind the ears on the left and right temporal regions, has already been proposed (for example, see Patent Documents 1 and 2).

[0005] However, in the case of the existing electroencephalogram measuring device such as the headgear type described above, the electroencephalogram measuring device itself tends to be large-scale, and the entire head of the subject is covered with a headgear or helmet with multiple electrodes laid out. Therefore, the subject wearing the electroencephalogram measuring device is clearly conspicuous from the surroundings, and the surrounding people may feel uncomfortable or strange, and often cannot go out in that state. In addition, since the device covers the entire head, it is not possible to wear a hat or a helmet over the electroencephalogram measuring device, and it is sometimes impossible to measure the electroencephalogram while living an ordinary life such as wearing a hat or driving a motorcycle.

[0006] Therefore, even if it is necessary to measure brain waves daily or over time, people may hesitate to wear existing brain wave measuring devices and measure brain waves because they are concerned about the eyes of people around them or because it may interfere with their daily lives. In order to eliminate the discomfort felt by people around them, for example, eyeglass-type bioinformation acquisition devices and biomeasurement devices in which the brain wave measuring device is configured in an eyeglass-like shape have already been proposed (see, for example, Patent Documents 3-6). Furthermore, ear-hook-type brain wave measuring devices that are miniaturized and hang on the ears of the person being measured have already been proposed (see, for example, Patent Documents 7 and 8). [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Special Publication No. 2019-506829 [Patent Document 2] Special Publication No. 2006-502791 [Patent Document 3] JP 2014-018234 A [Patent Document 4] JP 2017-185148 A [Patent Document 5] JP 2018-000880 A [Patent Document 6] Special table 2019-512713 publication [Patent Document 7] International Publication No. 2016 / 119665 [Patent Document 8] JP 2011-005176 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, in the case of the conventional electroencephalogram measuring device such as the headgear type described above, the position of the electrodes is often fixed in advance, and it is not possible to adjust and arrange the position of the electrodes for each person to be measured. This problem is also the case with the electroencephalogram measuring device such as the eyeglass type described above and the biological upper image acquiring device.

[0009] In other words, since there was no function or means for placing multiple electrodes at the correct EEG detection positions defined in advance by the International 10 / 20 system, etc., there were many cases where EEG signals could not be detected stably. Therefore, there was a risk of the accuracy of the EEG information measured based on the detected EEG signals being reduced.

[0010] Therefore, in consideration of the above-mentioned situation, the present invention has an object to provide an EEG measuring device that can measure EEG signals without causing discomfort to people around and without interfering with daily life, suppresses the effects of electrical noise caused by movements of facial muscles, etc. and sweating, stably detects EEG signals at the EEG detection position of the person being measured, and enables EEG measurements to be made with high accuracy. [Means for solving the problem]

[0011] According to the present invention, an electroencephalogram measuring device that solves the above problems is provided as follows.

[0012] [1] A device that can be worn on the subject's head A glasses-type eyeglass having a front part, a temple part, and an end part and having a glasses-type shape. A measuring device body, glasses type A measuring device connected to the measuring device body, arranged at the brain wave detection position of the subject, for detecting the brain wave signal of the subject. Attached to the temple part An electroencephalogram electrode and the glasses type and an electrode position adjustment mechanism for adjusting the relative position of the EEG electrodes with respect to the measurement device body. the electrode position adjustment mechanism comprises: a position adjustment space formed inside the temple portion and the end piece; a fixed shaft portion installed in the position adjustment space; a position adjustment roller portion installed in the position adjustment space between the front portion and the fixed shaft portion of the eyeglass-type measurement device main body; a roller biasing portion connected to the position adjustment roller portion and biasing the position adjustment roller portion by an elastic deformation force in a direction away from the fixed shaft portion side to the front portion side; and an electrical wiring portion formed of a long flexible material, which extends from the front portion side toward the fixed shaft portion side, is bent by abutting against the fixed shaft portion while changing the extension direction in the opposite direction, and is stored in the position adjustment space in a bent state by abutting against the position adjustment roller portion again while changing the extension direction in the opposite direction, and one end of which is connected to the EEG electrode. Brain wave measuring device.

[0014] [ 2 The electrode position adjusting mechanism includes a slide groove portion in which the EEG electrode can slide, and the electrode position adjusting mechanism includes the slide groove portion. 1 ] An electroencephalogram measuring device as described in the above.

[0015] [ 3 ] The electrode position adjustment mechanism further includes an extension mechanism that extends or contracts the length of the end piece and the temple piece along the longitudinal direction of the temple piece, and the electrode position adjustment mechanism is configured by the extension mechanism. 1 ] An electroencephalogram measuring device as described in the above.

[0020] [ 4 The above-mentioned [1] to [ 3 ] An electroencephalogram measuring device according to any one of the preceding claims.

[0021] [5 ] glasses type The measurement device body includes an electroencephalogram measurement module that is electrically connected to the electroencephalogram electrodes and measures the electroencephalograms of the subject based on the detected electroencephalogram signals, and a communication module that transmits electroencephalogram data relating to the measured electroencephalograms to an external device. 4 ] An electroencephalogram measuring device according to any one of the preceding claims.

[0022] [6] A device electrically connected to the electroencephalogram measuring module, earlobe The electroencephalogram measuring device according to [5], further comprising an indifferent electrode placed on the Effect of the Invention

[0023] According to the electroencephalogram measuring device of the present invention, the electrode position adjustment mechanism makes it possible to change the relative position of the electroencephalogram electrodes with respect to the main body of the measuring device. This allows the electroencephalogram electrodes to be adjusted to be positioned at the correct electroencephalogram detection positions of the subject, and allows stable detection of electroencephalogram signals.

[0024] In particular, by making the main body of the measuring device into a glasses-like shape or an ear-hanging type, it is possible to reduce the discomfort or strangeness felt by people around the subject when they see the subject wearing an EEG measuring device. As a result, it is possible to measure EEG without being restricted by wearing a hat or helmet, without interfering with daily life.

[0025] Furthermore, by setting the electroencephalogram detection position for detecting the electroencephalogram signal to the area between the mastoid process and the mastoid process of the temporal bone located behind the ear of the subject, or to the area between the left and right frontal regions corresponding to the area directly above the prefrontal cortex of the subject, in other words, the area between the left and right forehead, it is possible to suppress the generation of electrical noise caused by the movement of facial muscles or sweating. As a result, accurate detection of the electroencephalogram signal is not impaired by the influence of electrical noise, and stable detection of the electroencephalogram signal and highly accurate measurement of the electroencephalogram can be performed. [Brief description of the drawings]

[0026] [Figure 1] 1 is an explanatory diagram showing a schematic configuration of an electroencephalogram measuring device according to a first embodiment of the present invention. [Diagram 2] 1 is an explanatory diagram showing an example of a change in the relative position of the EEG electrodes in the vertical and horizontal directions by an electrode position adjustment mechanism in the EEG measurement device of the first embodiment. FIG. [Diagram 3] 2 is an explanatory diagram showing a schematic example of an internal structure of an electrode position adjustment mechanism in the electroencephalogram measuring device of the first embodiment; FIG. [Figure 4] 1 is an explanatory diagram showing an example of the arrangement of EEG electrodes and the like and the functional configuration of the EEG measuring device of the first embodiment. FIG. [Diagram 5] 10 is an explanatory diagram showing another example of the arrangement of EEG electrodes and the functional configuration in the EEG measuring device of the first embodiment. FIG. [Figure 6] 10 is an explanatory diagram showing another example of the arrangement of EEG electrodes and the functional configuration in the EEG measuring device of the first embodiment. FIG. [Figure 7] 10 is an explanatory diagram showing another example of the arrangement of EEG electrodes and the functional configuration in the EEG measuring device of the first embodiment. FIG. [Figure 8] 10 is an explanatory diagram showing another example of the arrangement of EEG electrodes and the functional configuration in the EEG measuring device of the first embodiment. FIG. [Figure 9] FIG. 11 is an explanatory diagram showing a schematic configuration of an electroencephalogram measuring device according to a second embodiment of the present invention. [Figure 10] FIG. 13 is an explanatory diagram showing a schematic configuration of an electroencephalogram measuring device according to a third embodiment of the present invention. [Figure 11] 13 is an explanatory diagram showing an example of the arrangement of EEG electrodes and the like and the functional configuration of an EEG measuring device of a third embodiment. FIG. [Figure 12] 13 is an explanatory diagram showing another example of the arrangement of EEG electrodes and the functional configuration in the EEG measuring device of the third embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the electroencephalogram measuring device of the present invention will be described with reference to the drawings. Note that the electroencephalogram measuring device of the present invention is not limited to the one shown below, and various design changes, modifications, improvements, etc. can be made without departing from the gist of the present invention.

[0028] 1. First embodiment of electroencephalogram measuring device 1 to 3, etc., the EEG measuring device 1 of the first embodiment of the present invention is configured to include an eyeglass-type measuring device main body 2 that can be worn on the head H of the subject and has an eyeglass-like appearance, an EEG electrode 4 that is connected to the eyeglass-type measuring device main body 2 and detects the EEG signal 3 of the subject, and an electrode position adjustment mechanism 5 that adjusts the relative position of the EEG electrode 4 with respect to the eyeglass-type measuring device main body, moves the EEG electrode 4 to the correct EEG detection position P of the subject, and positions the EEG electrode 4 at the correct EEG detection position P. Here, the eyeglass-type measuring device main body 2 corresponds to the measuring device main body in this invention.

[0029] Further, the specific configuration of the electroencephalogram measuring device 1 of the first embodiment will be described. As shown in FIG. 1, the eyeglass-type measuring device main body 2 has an overall eyeglass-type external shape, and is equipped with a front portion 8 having a pair of lens portions 6a, 6b and a rim portion 7 arranged so as to surround the lens portions 6a, 6b, a pair of temple portions 10a, 10b foldably connected to the front portion 8 via a hinge portion 9, and a pair of end portions 11a, 11b extending from one end of the temple portions 10a, 10b, respectively, and curved so as to abut the upper and rear sides of the subject's ears E and be able to be hooked onto the ears E.

[0030] The external shape of the eyeglasses-type measuring device main body 2 shown in Fig. 1 is an example that shows a schematic configuration of the electroencephalogram measuring device of the present invention, and is not limited to this shape. Furthermore, in Fig. 1, some components such as the electrode position adjustment mechanism 5 described later are omitted or simplified. In the above, the eyeglasses-type measuring device main body 2 having the lens parts 6a and 6b is exemplified, but the present invention is not limited to this, and a configuration like so-called "fashion glasses" that does not have a lens part may be used. In other words, it is sufficient that it can be attached to the head H of the person to be measured and that the electroencephalogram electrode 4 can be attached to a part of the temple part 11.

[0031] With the above configuration, the eyeglass-type measurement device body 2 can be supported at three points, the left and right ears E and the nose of the person to be measured, by performing an action similar to that of putting on ordinary shaped eyeglasses. In other words, the electroencephalogram measurement device 1 of the first embodiment can be worn on the head H of the person to be measured by a simple action.

[0032] In particular, because it has a commonly used eyeglasses-like shape, there is a low possibility that people around will notice that the EEG measuring device 1 is being worn, and people around will not feel uncomfortable wearing the EEG measuring device 1. As a result, it becomes possible to go about daily life while wearing the EEG measuring device 1, and there is no hesitation in wearing the EEG measuring device 1. Furthermore, the EEG measuring device 1 does not cause any hindrance when the person being measured puts on a hat, helmet, or the like.

[0033] Here, the main material forming the eyeglass-type measurement device body 2 is not particularly limited, and well-known metal materials, resin materials, etc. used in general eyeglasses can be used.

[0034] Furthermore, the end pieces 11a and 11b of the eyeglass-type measuring device main body 2 of the electroencephalogram measuring device 1 of the first embodiment are made of a material such as a metal material having an elastic repulsive force that allows elastic deformation against stress. Therefore, the tip portions of the end pieces 11a and 11b are biased in a predetermined direction by the elastic repulsive force. Furthermore, as shown in FIG. 1, the end pieces 11a and 11b are each provided with an electroencephalogram electrode 4 capable of detecting an electroencephalogram signal 3 on the side that comes into contact with the skin of the subject.

[0035] In this way, in the first embodiment of the EEG measuring device 1, the pair of temple parts 11a, 11b have an elastic repulsive force, so that the EEG electrodes 4 attached to these temple parts 11a, 11b respectively are biased along the electrode biasing directions A, A' (see arrows in Figure 1) toward the EEG detection position P on the temporal region behind the ear E of the subject.

[0036] This places the EEG electrode 4 in a state where it is strongly pressed against the EEG detection position P of the subject, thereby maintaining good continuity of the EEG electrode 4 at the EEG detection position P. The configuration relating to the end pieces 11a, 11b having an elastic repulsive force corresponds to the electrode biasing means in this invention.

[0037] Furthermore, the eyeglass-type measurement device main body 2 includes, as internal functional components, an electroencephalogram measurement module 13 that measures electroencephalograms based on the detected electroencephalogram signal 3, and a communication module 15 that wirelessly transmits to the outside electroencephalogram data 14 related to the electroencephalograms measured by the electroencephalogram measurement module 13. The electroencephalogram data 14 transmitted from the eyeglass-type measurement device main body 2 can be received by an information and communication device such as a personal computer or a smartphone, and can be displayed on a display or the like. Furthermore, the electroencephalogram data 14 can also be stored in a server or the like.

[0038] Further, inside the eyeglass-type measuring device main body 2, there are arranged an electrical configuration such as a power source 16 that supplies power to drive the EEG measuring module 13 etc. to detect the EEG signal 3 and measure the EEG, and to transmit the EEG data 14 by the communication module 15, a DCDC converter 17 provided between the power source 16 and the EEG measuring module 13 etc., and an electrical wiring section 18 made of a conductive material that electrically connects the EEG electrodes 4, the EEG measuring module 13, the power source 16, and the DCDC converter 17 etc. (see Figs. 4 to 8 etc.). Specific examples of the wiring diagram and the arrangement of the EEG electrodes 4 relative to the subject will be described later.

[0039] The function of measuring the brainwave based on the brainwave signal 3 and wirelessly transmitting the brainwave data 14 can employ detection and measurement techniques using a conventionally known electroencephalograph (brainwave measuring device) or well-known wireless communication techniques, and detailed explanations are omitted here. That is, the brainwave measuring module 13 receives the input of the brainwave signal 3, which is a type of electrical signal detected by the brainwave electrode 4, and generates brainwave data 14 by internal software processing, and further transmits the brainwave data 14 to the outside via existing wireless communication techniques such as WiFi (registered trademark) and Bluetooth (registered trademark). The brainwave data 14 may be transmitted to the outside via a wired connection with the eyeglass-type measuring device main body 2.

[0040] The EEG electrode 4 in the EEG measuring device 1 of the first embodiment is placed at an EEG detection position P on the subject's head H, a part of the subject's skin that is free of hair and the like so as not to impede detection of particularly weak EEG signals 3. The EEG measuring device 1 of the first embodiment is provided with the eyeglass-type measuring device main body 2 as described above, and the EEG electrode 4 is attached to the tip portions of the temple parts 11a, 11b.

[0041] Therefore, the area from the mastoid part of the temporal bone located on the side of the head behind the ear E of the subject to the mastoid process is set as the brain wave detection position P, and the brain wave signal 3 is detected within this area.

[0042] Here, the configuration of the EEG electrode 4 may be that used in conventionally known electroencephalographs and the like. Furthermore, the electrode surface portion 19 of the EEG electrode 4 may be formed from a conductive rubber material such as conductive silicone. Conductive silicone rubber made of conductive silicone is a flexible material that can be freely deformed in response to stress, and can be freely deformed in accordance with the shape and unevenness of the skin at the EEG detection position P of the subject. This allows for good placement at the EEG detection position P, enabling stable detection of the EEG signal 3.

[0043] Furthermore, even if the subject moves and the skin expands and contracts while the EEG electrode 4 is placed at the EEG detection position P, the electrode surface portion 19 itself can deform in response to the expansion and contraction. Furthermore, conductive silicone rubber is known to have a high coefficient of friction, which can prevent the EEG electrode 4 from slipping or shifting at the EEG detection position P. This makes it possible to stably maintain the placement of the EEG electrode 4 at the EEG detection position P, and therefore forming the electrode surface portion 19 from the conductive silicone is preferable.

[0044] Here, the surface shape of the electrode surface portion 19 of the EEG electrode 4 is not particularly limited, and may be, for example, a smooth planar shape without any irregularities, or a convex shape with multiple convex portions (not shown) arranged according to a predetermined arrangement standard. By making it a smooth planar shape without any irregularities, the stability of placement at the EEG detection position P can be further improved. On the other hand, by providing multiple small convex portions, the friction coefficient can be increased, and defects such as slippage can be prevented.

[0045] The shape of the protrusions formed on the electrode surface portion 19 is not particularly limited, and for example, a rectangular parallelepiped shape, a cube shape, a cone shape, a truncated cone shape, a pyramid shape, or a truncated pyramid shape may be adopted, and a square arrangement or a staggered arrangement may be adopted as the arrangement standard for the protrusions.

[0046] As a specific example, when the shape of the convex portion is a cone-shaped conical convex portion, the base radius of the conical convex portion can be in the range of 1 mm to 5 mm, and the radius of curvature at the cone apex of the conical convex portion can be in the range of 0.5 mm to 5 mm.

[0047] Furthermore, when multiple protrusions are arranged in a square or staggered pattern, the arrangement pitch between adjacent protrusions can be in the range of 0.1 mm to 10 mm, and the protrusion height from the base surface of the electrode surface portion 19 of the protrusions can be in the range of 0.05 mm to 2 mm.

[0048] In this way, by providing the electrode surface 19 of the EEG electrode 4 with unevenness due to a plurality of protrusions, the EEG electrode 4 can be subjected to even more minute deformation, and the friction coefficient can be increased. As a result, slippage or shifting between the skin and the electrode surface 19 becomes less likely to occur, the positioning of the EEG electrode 4 becomes stable, and electrical noise or the like is not mixed into the detection of the EEG signal 3.

[0049] Furthermore, by providing multiple tiny protrusions on the electrode surface 19, the gaps between the multiple protrusions can serve as paths (discharge paths) for sweat even when the subject's skin is sweating. This prevents sweat from accumulating between the skin and the EEG electrode 4, and has the effect of suppressing electrical noise caused by slippage or misalignment of the EEG electrode 4.

[0050] In addition, the EEG measuring device 1 of the first embodiment is equipped with an electrode position adjustment mechanism 5 for adjusting the relative position of the EEG electrode 4 with respect to the eyeglass-type measuring device main body 2 and positioning the EEG electrode 4 at the correct EEG detection position P.

[0051] 2, a slide groove 20 may be provided along the longitudinal direction of the ear piece 11a located behind the ear E of the subject, and a mechanism may be provided that allows the EEG electrode 4 to slide along the slide groove 20. This allows the relative position of the EEG electrode 4 in the vertical direction B (see the up and down arrows in FIG. 2) to the eyeglass-type measurement device main body 2 to be changed. After the EEG electrode 4 is slid along the slide groove 20 and adjusted to the height of the EEG detection position P, a means for restricting the sliding of the EEG electrode 4 may be provided to fix the relative position in the vertical direction.

[0052] On the other hand, an extension mechanism can be provided that extends or retracts the length of the temple part 10a and the end piece 11a to which the EEG electrode 4 is attached, along the longitudinal direction of the temple part 10a. That is, a thin-diameter tip part 21 can be formed at one end of the temple part 10a, an insertion hole part 22 into which the tip part 21 can be inserted can be formed at one end of the end piece 11a, and a plurality of positioning holes 23 can be provided at equal intervals at the positions of the end piece 11a where the tip part 21 and the insertion hole part 22 are formed. Then, by adjusting the insertion amount of the tip part 21 into the insertion hole part 22 and matching the positions of the positioning holes 23, a rod-shaped position fixing member 24 can be inserted into the matching positioning holes 23, thereby determining the relative position of the temple part 10a with respect to the end piece 11a.

[0053] As a result, the relative position of the EEG electrode 4 attached to the temple section 11a in the horizontal direction C (see the horizontal arrow in FIG. 2) can be changed. With this configuration, it is possible to adjust the relative position of the EEG electrode 4 in the vertical and / or horizontal directions. Note that the electrode position adjustment mechanism section 5 shown in FIG. 2 is one specific example, and the electrode position adjustment mechanism section in the EEG measuring device of the present invention is not limited to this.

[0054] As described above, when adopting an electrode position adjustment mechanism 5 for changing the relative position of the EEG electrode 4 in the vertical direction B and horizontal direction C with respect to the eyeglass-type measurement device main body 2, it becomes necessary to have a mechanism for changing the length of the electrical wiring section 18 electrically connecting between the EEG measurement module 13 and the EEG electrode 4 inside the eyeglass-type measurement device main body 2 by expanding, contracting, folding, or rolling up.

[0055] 3, an example is shown in which an electrode position adjustment mechanism 5 is formed inside the eyeglass-type measurement device main body 2, the electrode position adjustment mechanism 5 including a position adjustment space 25 formed inside the temple part 10a on which the EEG measurement module 13 is mounted and the end piece 11a on which the EEG electrode 4 is attached, a fixed shaft part 26 installed in the position adjustment space 25, a position adjustment roller part 27 installed in the position adjustment space 25 between the front part 8 of the eyeglass-type measurement device main body 2 and the fixed shaft part 26, and a biasing spring 28 that biases the position adjustment roller part 27 by elastic deformation force in a direction away from the fixed shaft part 26 side to the front part 8 side. Here, the biasing spring 28 corresponds to the roller biasing part in the present invention.

[0056] Furthermore, in the above configuration, the other end is connected to the EEG measurement module 13, extends from the front section 8 side toward the fixed shaft section 26 side (from the left side of the paper in Figure 3 to the right side of the paper), abuts against the shaft surface of the fixed shaft section 26 and is bent by changing the extension direction in the opposite direction (from the right side of the paper in Figure 3 to the left side of the paper), and further abuts against the roller surface of the position adjustment roller section 27 and again changes the extension direction in the opposite direction (from the left side of the paper in Figure 3 to the right side of the paper), and is stored in the position adjustment space 25 in a bent state, and further includes an electrical wiring section 18 formed of a long flexible material, one end of which is connected to the EEG electrode 4.

[0057] As a result, the folding state of the electrical wiring section 18 connecting between the EEG measurement module 13 and the EEG electrode 4 changes as the relative position of the EEG electrode 4 in the vertical direction B and / or horizontal direction C is changed.

[0058] That is, the biasing spring 28 exerts a force pulling the position adjustment roller portion 27 toward the front portion 8 (toward the left side of the paper in FIG. 3), and the position adjustment roller portion 27 is biased in an expansion direction D (see the arrow in FIG. 3) in which the distance between the fixed shaft portion 26 and the position adjustment roller portion 27 increases. Therefore, the length of the electrical wiring portion 18 folded between the fixed shaft portion 26 and the position adjustment roller portion 27 changes. Specifically, the folded length increases.

[0059] On the other hand, when the relative position of the EEG electrode 4 is changed so as to move it away from the temple portion 10a, the electrical wiring portion 18 connected to the EEG electrode 4 is pulled, and the position adjustment roller portion 27 shortens the distance between the fixed shaft portion 26 and the position adjustment roller portion 27. That is, the position adjustment roller portion 27 moves in a direction approaching the fixed shaft portion 26 (toward the right side of the paper in FIG. 3). In this way, the folding state of the electrical wiring portion 18 can also change inside the eyeglass-type measurement device main body 2 in accordance with the change in the relative position of the EEG electrode 4. This maintains the electrical connection between the EEG measurement module 13 and the EEG electrode 4.

[0060] 2. Specific examples of wiring diagram of the EEG measuring device of the first embodiment and arrangement of EEG electrodes In general, there are various types of EEG measuring devices, such as a monopolar induction type and a bipolar induction type. The wiring section of the internal structure and the arrangement of the EEG electrodes, etc., on the attachment position of the subject are different for each measurement type. Below, a wiring diagram of the EEG measuring device of the first embodiment and a specific example of the arrangement of the EEG electrodes 4, etc., are described. Note that the wiring diagram and the arrangement of the EEG electrodes 4, etc., are merely examples and are not limited to these.

[0061] 2.1 Unipolar Induction Measurement 1-pole Type In the case of the first embodiment of the electroencephalogram measuring device of the single-electrode type, as shown in FIG. 4, the electroencephalogram electrode 4L is placed on the temporal region behind the left ear of the subject, and further, the indifferent electrode 12R and the ground electrode 29R are placed on the earlobe (not shown) of the right ear of the subject. The electroencephalogram electrode 4L, the indifferent electrode 12R, and the ground electrode 29R (indicated as "GND electrode" in FIG. 4, the same applies below) are each electrically connected to the 1ch electroencephalogram measuring module 13. The control unit 30, which is composed of the electroencephalogram measuring module 13 and the communication module 15 mounted inside the eyeglass-type measuring device main body 2, is connected to the power source 16 via the DCDC converter 17. As a result, the electroencephalogram signal 3 is detected at the position of the temporal region behind the left ear E (electroencephalogram detection position P), the electroencephalogram is measured by the electroencephalogram measuring module 13, and the obtained electroencephalogram data 14 can be transmitted to an external information communication terminal (not shown) such as a personal computer or a smartphone via the communication module 15.

[0062] 2.2 Unipolar Inductive Measurement 2-pole Type In the case of the first embodiment of the electroencephalogram measuring device of the two-electrode type for single-pole induction measurement, as shown in Fig. 5, the electroencephalogram electrodes 4L, 4R are placed on the temporal region behind the left and right ears of the subject, and the indifferent electrodes 12L, 12R and the ground electrodes 29L, 29R are placed on the earlobes of the left and right ears of the subject. A pair of control units 30L, 30R consisting of a 1-channel electroencephalogram measuring module 13 and a communication module 15 is provided, and the left electroencephalogram electrode 4L, the right indifferent electrode 12R and the ground electrode 29R are electrically connected to the electroencephalogram measuring module 13 of one control unit 30R, and the right electroencephalogram electrode 4R, the left indifferent electrode 12L and the GND 29L are electrically connected to the electroencephalogram measuring module 13 of the other control unit 30L.

[0063] The power supply 16 is connected to a pair of isolated DCDC converters 17L and 17R, one of which is connected to the control unit 30L, and the other is connected to the control unit 30R. Any one of the pair of isolated DCDC converters 17L and 17R may be of an insulating type. The measurement of the brainwave based on the detected brainwave signal 3 and the transmission of the brainwave data 14 relating to the obtained brainwave to the outside are substantially the same as in the case of the above-mentioned unipolar lead measurement 1-pole type, so the following description will be omitted.

[0064] 2.3 2-pole type In the case of the first embodiment of the two-electrode type electroencephalogram measuring device, as shown in Fig. 6, the electroencephalogram electrodes 4L, 4R are arranged on the temporal region behind the left and right ears of the subject, and the indifferent electrodes 12L, 12R and the ground electrodes 29L, 29R are arranged on the earlobes of the left and right ears of the subject, respectively. A control unit 30 is provided, which is composed of a 2-channel electroencephalogram measuring module 13 and a communication module 15, and the left and right electroencephalogram electrodes 4L, 4R, etc. are all electrically connected to the 2-channel electroencephalogram measuring module 13. The 2-channel electroencephalogram measuring module 13 has a left power supply 31L and a right power supply 31R inside, and is connected to the power supply 16 via the insulating DC-DC converters 17L, 17R, respectively.

[0065] 2.4 Alternative configuration of 2-pole type In the case of the first embodiment of the electroencephalogram measuring device having a different configuration of a two-electrode type, the electroencephalogram electrodes 4L, 4R are placed on the temporal region behind the left and right ears of the subject, respectively, as shown in Fig. 7. The device is equipped with a pair of control units 30L, 30R each consisting of a one-channel electroencephalogram measuring module 13 and a communication module 15, and the left electroencephalogram electrode 4L is electrically connected to the electroencephalogram measuring module 13 of one control unit 30L, and the right electroencephalogram electrode 4R is electrically connected to the electroencephalogram measuring module 13 of the other control unit 30L.

[0066] The power supply 16 is connected to a pair of isolated DCDC converters 17L and 17R, one of which is connected to the control unit 30L, and the other is connected to the control unit 30R. It is sufficient that either one of the pair of isolated DCDC converters 17L and 17R is an insulating type. In this case, the configuration of an indifferent electrode and a ground electrode is not necessary.

[0067] 2.5 Alternative configuration of 2-pole type In the case of the electroencephalogram measuring device of the first embodiment having a two-electrode type configuration, as shown in FIG. EEG electrodes 4L and 4R are placed on the temporal region behind the left and right ears, respectively. A control unit 30 is provided, which is made up of a 2ch EEG measurement module 13 and a communication module 15, and the left and right EEG electrodes 4L and 4R are all electrically connected to the 2ch EEG measurement module 13. The 2ch EEG measurement module 13 has a left power supply 31L and a right power supply 31R inside, and is connected to the power supply 16 via isolated DCDC converters 17L and 17R, respectively. In this case, the configuration of the indifferent electrode and the GNG electrode is not necessary.

[0068] 3. Second embodiment of electroencephalogram measuring device As shown in Fig. 9, the electroencephalogram measuring device 32 of the second embodiment of the present invention is configured to include an ear-hook type measuring device main body 35 having a pair of ear hook parts 33 that can be worn by hanging them on the ears E of the subject and a connecting part 34 that connects the pair of ear hook parts 33 to each other, an electroencephalogram electrode 36 that is connected to one of the ear hook parts 33 of the ear-hook type measuring device main body 35 (corresponding to the left ear E side of the subject in Fig. 9) and detects the electroencephalogram signal of the subject, and an electrode position adjustment mechanism part 37 that adjusts the relative position of the electroencephalogram electrode 36 with respect to the ear-hook type measuring device main body 35 in the vertical direction and / or horizontal direction and positions the electroencephalogram electrode 36 at the correct electroencephalogram detection position P of the subject. Here, the ear-hook type measuring device main body 35 corresponds to the measuring device main body in the present invention. Note that in the electroencephalogram measuring device 32 of the second embodiment, illustrations and detailed descriptions of the configurations that are substantially the same as those of the electroencephalogram measuring device 1 of the first embodiment will be omitted.

[0069] Regarding the specific configuration of the electroencephalogram measuring device 32 of the second embodiment, the ear hook portion 33 is formed so as to be hookable onto each of the left and right ears E of the subject's head H, and as shown in Figure 9, has a front piece portion 38a, an upper piece portion 38b, and a rear piece portion 38c which contact the front, top, and rear of the subject's ears, respectively, and is configured to have an approximately inverted U-shape.

[0070] Furthermore, the connecting portion 34 connects between the pair of ear hooks 33 that are hung on the left and right ears E, connects the above-mentioned rear pieces 38c, and connects the ear hooks 33 to each other so as to cross the back side of the subject's head H, specifically, near the so-called "tray recess" near the back side of the subject's neck N, when the pair of ear hooks 33 are attached to the left and right ears E. Note that Fig. 9 is a view of the subject and the electroencephalogram measuring device 32 of the second embodiment attached to the subject's head H, viewed from the right side of the subject, and the configuration of the opposite side (the subject's left side) is not shown.

[0071] With the above configuration, when the subject is viewed from the front (left direction of the paper in FIG. 9), only the front piece 38a, which is a part of the ear hook part 33, is visible, and most of the configuration of the ear hook type measurement device main body 35 cannot be seen because it is hidden by the subject's head H, etc. In other words, there is no need to wear a large-scale electroencephalogram measuring device as in the past, and people around do not feel uncomfortable wearing the electroencephalogram measuring device 32. As a result, it is possible to go about daily life while wearing the electroencephalogram measuring device 32, and there is no hesitation in wearing the electroencephalogram measuring device 32. In addition, the electroencephalogram measuring device 32 does not interfere with the subject's wearing a hat, helmet, etc.

[0072] The main material forming the ear-hook type measurement device main body 35 can be the same as that of the EEG measurement device 1 of the first embodiment, and detailed description thereof will be omitted here. In the ear-hook part 33 of the EEG measurement device 32 of the second embodiment, the rear piece 38c located on the temporal region behind the ear E of the subject can be made of a material having an elastic repulsive force that can elastically deform against stress, and is provided with an electrode biasing means for biasing the EEG electrode 36 in a direction pressing it against the EEG detection position P. The detailed configuration and effects of these are the same as those of the EEG measurement device 1 of the first embodiment, and detailed description thereof will be omitted here.

[0073] The ear-hook type measurement device main body 35 includes, as its internal functional configuration, an EEG measurement module 39 that measures EEG based on a detected EEG signal, and a communication module 40 that wirelessly transmits EEG data related to the EEG measured by the EEG measurement module 39 to the outside. Furthermore, inside the ear-hook type measurement device main body 35, similar to the EEG measurement device 1 of the first embodiment, a power supply, a DCDC converter, etc., and an electrical wiring section that electrically connects the EEG electrodes 36, the EEG measurement module 39, etc., the power supply, the DCDC converter, etc. are provided. Some of these configurations are not shown in the figure.

[0074] The EEG electrode 36 in the EEG measuring device 32 of the second embodiment is placed directly on the subject's head H, at the EEG detection position P on the subject's skin where there is no hair or the like so as not to impede detection of particularly weak EEG signals. As described above, in the EEG measuring device 32 of the second embodiment, the EEG electrode 36 is attached to the tip of the rear piece 38c of one of the ear hook parts 33, which has a substantially inverted U-shape, of the ear-hook type measuring device main body 35.

[0075] Therefore, the range from the mastoid part of the temporal bone located on the side of the head behind the ear E of the subject to the mastoid process is set as the EEG detection position P, and EEG signals are detected in this range. The configuration of the EEG electrode 36 can be the same as that of the EEG electrode 4 in the EEG measuring device 1 of the first embodiment, and a detailed description thereof will be omitted here.

[0076] Furthermore, the EEG measuring device 32 of the second embodiment is provided with an electrode position adjustment mechanism 37 for adjusting the relative position of the EEG electrode 36 with respect to the behind-the-ear measuring device main body 35 and disposing the EEG electrode 36 at the correct EEG detection position P. This makes it possible to stably detect EEG signals at the correct EEG detection position P.

[0077] The detailed configuration of the electrode position adjustment mechanism 37 will be described. For example, as shown in Fig. 9, a slide groove 41 can be provided along the rear piece 38c located behind the ear E of the subject, and a mechanism can be provided that allows the EEG electrode 36 to slide (be slidable) along the slide groove 41. This allows the relative position of the EEG electrode 36 in the up-down direction B (see the up-down arrows in Fig. 9) with respect to the ear-hook type measurement device main body 35 to be changed. After the EEG electrode 36 is slid along the slide groove 41 and adjusted to the height of the EEG detection position P, a means for restricting the sliding of the EEG electrode 36 can be provided to fix the relative position in the up-down direction.

[0078] Furthermore, the ear hook 33 may be provided with a mechanism for changing the relative positional relationship of the front piece 38a, which is provided perpendicular to the upper piece 38b connected to the rear piece 38c to which the EEG electrode 36 is attached. That is, a plurality of positioning holes 42 may be provided at equal intervals along the longitudinal direction of the upper piece 38b, while a similar positioning hole 42 may be provided at a position of the front piece 38a that intersects with the upper piece 38b. Then, while moving the front piece 38a along the longitudinal direction of the upper piece 38b, the positioning holes 42 of the upper piece 38b and the positioning holes 42 of the front piece 38a are aligned with each other, and a rod-shaped position fixing member 43 is inserted into the aligned positioning hole 42, thereby determining the relative positions of the upper piece 38b and the rear piece 38c with respect to the front piece 38a.

[0079] As a result, the relative position of the EEG electrode 36 attached to the ear hook 33 in the horizontal direction C (see the horizontal arrow in FIG. 9) can be changed. With this configuration, the relative position of the EEG electrode 36 can be adjusted in the vertical and / or horizontal directions. Note that the specific configuration of the electrode position adjustment mechanism 37 described above is merely an example, and the EEG measuring device of the present invention is not limited to this. In addition, the mechanism for folding and rolling up the electrical wiring section and the like that electrically connects between the EEG measurement module 39 and the EEG electrode 36 inside the ear-hook type measuring device main body 35 in the EEG measuring device 32 can adopt substantially the same mechanism as that of the EEG measuring device 1 of the first embodiment, and a detailed description thereof will be omitted here.

[0080] 4. Wiring diagram of the electroencephalogram measuring device of the second embodiment and specific examples of the arrangement of electroencephalogram electrodes, etc. Regarding the wiring diagram and the arrangement of the EEG electrodes 36 in the EEG measuring device 32 of the second embodiment, it is possible to adopt a configuration that is the same as or similar to the unipolar induction measurement two-pole type (see Figure 5) and two-pole type (see Figure 6) in the EEG measuring device 1 of the first embodiment, and detailed explanations are omitted here.

[0081] 5. Electroencephalogram Measuring Apparatus of Third Embodiment 10, the electroencephalogram measuring device 44 of the third embodiment of the present invention further includes a pair of electrode supports 45 extending obliquely from the pair of ear hooks 33, in addition to the ear hook parts 33 and connecting parts 34 corresponding to the ear hook type measuring device main body 35 in the electroencephalogram measuring device 32 of the second embodiment, and an electroencephalogram electrode 46 is attached to the tip of the rear piece 38c of the ear hook parts 33, and an electroencephalogram electrode 46 is further attached to the tip of each of the pair of electrode supports 45. In the electroencephalogram measuring device 44 of the third embodiment, the same components as those in the electroencephalogram measuring device 32 of the second embodiment are designated by the same numbers, and detailed description thereof will be omitted.

[0082] Here, a pair of electrode supports 45 in the electroencephalogram measuring device 44 of the third embodiment are extended obliquely upward (diagonally upward to the left in the paper in FIG. 10) from the intersection of the front piece 38a and the upper piece 38b of the ear hook 33, and one end of the electrode support 45 is formed so as to be able to abut on the front head F corresponding to the position directly above the prefrontal cortex of the subject, in other words, the left and right forehead parts. That is, it is possible to detect an electroencephalogram signal 47 (see FIG. 11, etc.) at an electroencephalogram detection position P1 set behind the ear E of the subject, as well as at an electroencephalogram detection position P2 set on the left and right front heads F. Therefore, the electroencephalogram measuring device 44 of the third embodiment is provided with a simultaneous detection type measuring device main body 48 capable of detecting an electroencephalogram signal 47 at a plurality of electroencephalogram detection positions P1 and P2. Here, the simultaneous detection type measuring device main body 48 corresponds to the measuring device main body in the present invention.

[0083] With the above configuration, when the subject is viewed from the front (left direction of the paper in FIG. 10), the front piece 38a which is a part of the ear hook 33, the electrode support 45 extended from the ear hook 33, and the EEG electrode 46 attached to the tip of the electrode support 45 are visible, while most of the configuration of the simultaneous detection type measuring device main body 48 cannot be seen because it is hidden by the subject's head H, etc. In other words, people around the subject do not feel uncomfortable wearing the EEG measuring device 44. As a result, it is possible to go about daily life while wearing the EEG measuring device 44, and there is no hesitation in wearing the EEG measuring device 44. In addition, the EEG measuring device 44 does not interfere with the subject's wearing a hat, helmet, etc.

[0084] The materials forming the simultaneous detection type measuring device main body 48, the internal functional configuration, and the configuration of the EEG electrode 46, etc. are approximately the same as those of the EEG measuring device 1 of the first embodiment and the EEG measuring device 32 of the second embodiment, so detailed explanations are omitted here.

[0085] The EEG electrodes 46 in the EEG measuring device 44 of the third embodiment are placed at two EEG detection positions P1, P2 on the subject's head H, where there is no hair or the like so as not to impede detection of particularly weak EEG signals 47. As described above, in the EEG measuring device 44 of the second embodiment, the EEG electrodes 46 are attached at two locations: the tip portion of the rear piece 38c of one of the ear hooks 33, which has a substantially inverted U shape, of the simultaneous detection type measuring device main body 48, and the tip portion of the electrode support 45 extended from the ear hook 33.

[0086] Therefore, an electroencephalogram signal 47 is detected at an electroencephalogram detection position P1, which is in the range from the mastoid portion of the temporal bone located on the side of the subject's head behind the ear E to the mastoid process, and at an electroencephalogram detection position P2, which is the subject's forehead F. The configuration of the electroencephalogram electrode 46 can be the same as that of the electroencephalogram electrode 4 in the electroencephalogram measuring device 1, etc., and a detailed description thereof will be omitted here.

[0087] Furthermore, the EEG measuring device 44 of the third embodiment is equipped with two electrode position adjustment mechanisms 49a, 49b for adjusting the relative position of the EEG electrode 46 with respect to the simultaneous detection type measuring device main body 48 and for locating the EEG electrode 46 at the correct EEG detection positions P1, P2. Here, one of the electrode position adjustment mechanisms 49a, which adjusts the relative position of the EEG electrode 46 in the vertical direction B and horizontal direction C with respect to the EEG detection position P1, is substantially the same as the electrode position adjustment mechanism 37 in the EEG measuring device 32 of the second embodiment, and therefore will not be described in detail here.

[0088] In the electroencephalogram measuring device 44 of the third embodiment, the simultaneous detection type measuring device main body 48 has an extension mechanism for extending and retracting the electrode support 45 along the longitudinal direction, and the other electrode position adjustment mechanism part 49b is constituted by the extension mechanism. For example, as shown in FIG. 10, such an extension mechanism is a form mainly used in rod antennas, fishing rods, etc., and can be a structure in which the electrode support 45 is constituted by combining a plurality of hollow columnar members 50a, 50b, 50c, and 50d having different thicknesses. Note that the extension mechanism in the electroencephalogram measuring device 44 of the third embodiment is not limited to this, and can be, for example, a structure in which a plurality of hollow rectangular columnar members are combined, a structure such as a pantograph-type manipulator, or another well-known extension mechanism. As a result, the electrode support 45 itself constituting a part of the simultaneous detection type measuring device main body 48 can be extended and contracted to change the relative position of the electroencephalogram electrode 46 attached to the tip part.

[0089] Furthermore, similar to the aforementioned electrode position adjustment mechanism 49a, the EEG electrode 46 may be provided with a mechanism that allows it to slide along a slide groove portion (not shown) provided along the longitudinal direction of the electrode support 45, and only the EEG electrode 46 may change its relative position.

[0090] This makes it possible to change the relative position of the EEG electrode 46 in the diagonal direction G (see the diagonal arrow in FIG. 10) with respect to the simultaneous detection-type measuring device main body 48.

[0091] This makes it possible to adjust the relative positions of the two EEG electrodes 46 with respect to the simultaneous detection measuring device main body 48 and position the EEG electrodes 46 at the correct EEG detection positions P1, P2, respectively, thereby enabling stable detection of the EEG signal 47 at the EEG detection positions P1, P2.

[0092] 6. Wiring diagram of the EEG measuring device of the third embodiment and specific examples of the arrangement of EEG electrodes, etc. As shown in Fig. 11, the EEG electrodes 46EL and 46ER are arranged on the left and right ears of the subject, and the indifferent electrodes 51L and 51R and the ground electrodes 52L and 52R are arranged on the left and right earlobes of the subject. The EEG measurement device 44 includes a 1ch EEG measurement module 53 and a communication module 54, and has two pairs of control units 55EL, 55ER, 55FL, and 55FR (four in total). The left EEG electrode 46EL and the right indifferent electrode 51R and the ground electrode 52R are electrically connected to the EEG measurement module 53 of the control unit 55ER, and the right EEG electrode 46ER and the left indifferent electrode 51L and the ground electrode 52L are electrically connected to the control unit 55EL.

[0093] Furthermore, EEG electrodes 46FL, 46FR are placed on the left and right frontal regions of the subject, respectively, and the left EEG electrode 46FL is electrically connected to the EEG measurement module 53 of the control unit 55FL, and the right EEG electrode 46FR is electrically connected to the EEG measurement module 53 of the control unit 55FR. In addition, the EEG measurement module 53 of the control unit 55FL is electrically connected to the indifferent electrode 51L and ground electrode 52R placed on the left earlobe of the subject, and the EEG measurement module 53 of the control unit 55FR is electrically connected to the indifferent electrode 51R and ground electrode 52R placed on the right side of the subject.

[0094] The control units 55EL and 55FL are connected to a power supply 57 via an insulating DCDC converter 56L, while the control units 55ER and 55ER are connected to a power supply 57 via an insulating DCDC converter 56R. Either one of the pair of insulating DCDC converters 56L and 56R may be an insulating type. These are electrically connected via an electrical wiring section 58.

[0095] Further, in another example of the wiring diagram and the arrangement of the EEG electrodes in the EEG measuring device 44 of the third embodiment, as shown in Fig. 12, EEG electrodes 46EL, 46ER are arranged on the temporal region behind the left and right ears of the subject, and indifferent electrodes 51L, 51R and ground electrodes 52L, 52R are arranged on the earlobes of the left and right ears of the subject, respectively. Furthermore, EEG electrodes 46FL, 46FR are arranged on the left and right foreheads of the subject, respectively.

[0096] The control unit 55 is provided with a 4-channel EEG measurement module 53 and a communication module 54, and the EEG electrodes 46EL, 46ER, 46FL, 46EL, the indifferent electrodes 51L, 51R, and the ground electrodes 52L, 52R are electrically connected to the EEG measurement module 53 of the control unit 55. The 4-channel EEG measurement module 53 has a left power supply 59L and a right power supply 59R inside, and is connected to a power supply 57 via insulating DCDC converters 56L, 56R, respectively. Note that it is sufficient that either one of the pair of insulating DCDC converters 56L, 56R is an insulating type. These electrical connections are made via an electrical wiring section 58.

[0097] As described above, the electroencephalogram measuring device of the present invention can detect electroencephalogram signals at an electroencephalogram detection position located on the side of the subject's head behind the ear E from the mastoid portion of the temporal bone to the mastoid process, or in addition to the electroencephalogram detection position, can simultaneously detect electroencephalograms at the left and right frontal regions located directly above the prefrontal cortex. These electroencephalogram detection positions are locations where people around the subject are unlikely to feel uncomfortable even when the electroencephalogram measuring device is worn, and by making the device body into a glasses-type or ear-hook type, electroencephalograms can be measured daily or over time without interfering with daily life. [Industrial Applicability]

[0098] The electroencephalogram measuring device of the present invention can be used for measuring electroencephalograms in a wide range of fields, including the medical and sports fields, as well as entertainment fields such as games, education, neuromarketing, health care, and mental care. [Explanation of symbols]

[0099] 1, 32, 44: Electroencephalography device 2: Glasses-type measuring device body (measuring device body) 3,47: EEG signal 4, 4L, 4R, 36, 46, 46EL, 46ER, 46FL, 46FR: EEG electrodes 5,37,49a,49b: Electrode position adjustment mechanism section 6a, 6b: Lens section 7: Rim section 8: Front section 9: Hinge part 10a, 10b: Temple section 11a, 11b: end plate (electrode biasing means) 12,12L,12R,51L,51R: Indifferent electrode 13, 39, 53: Module for measuring brainwaves 14: Brain wave data 15, 40, 54: Communication module 16,57:Power supply 17: DCDC converter 17L, 17R, 56L, 56R: Isolated DC-DC converter 18,58: Electrical wiring section 19: Electrode surface part 20, 41: Slide groove portion (electrode position adjustment mechanism portion) 21:Tip 22: Insertion hole 23, 42: Positioning holes 24, 43: Position fixing member 25: Position adjustment space 26: Fixed shaft part 27: Position adjustment roller part 28: Spring (roller biasing part) 29L, 29R, 52L, 52R: Ground electrodes 30, 30L, 30R, 55EL, 55ER, 55FL, 55FR: Control unit 31L, 59L: Left power supply 31R,59R: Right power supply 33: Ear hook 34:Connection part 35: Ear-hook type measuring device body (measuring device body) 38a: Front piece 38b: Upper piece 38c: Posterior piece 50a, 50b, 50c, 50d: hollow cylindrical members A,A': Electrode biasing direction B: Vertical direction C: Horizontal direction D: Expansion direction E: Ear F: Frontal region G: Direction H:Head N:Neck P, P1, P2: Brain wave detection positions

Claims

1. a glasses-type measurement device body having a front part, a temple part, and an end part that can be worn on the head of a person to be measured and has a glasses-like shape; an electroencephalogram electrode connected to the eyeglass-type measurement device body, disposed at an electroencephalogram detection position of the subject, and attached to the temple part for detecting an electroencephalogram signal of the subject; an electrode position adjustment mechanism that adjusts the relative position of the EEG electrodes with respect to the eyeglass-type measurement device body, The electrode position adjustment mechanism includes: a position adjustment space formed inside the temple portion and the end piece; A fixed shaft portion installed in the position adjustment space; a position adjustment roller portion provided in the position adjustment space between the front portion and the fixed shaft portion of the eyeglass-type measurement device body; a roller biasing portion connected to the position adjustment roller portion and biasing the position adjustment roller portion in a direction away from the fixed shaft portion toward the front portion by an elastic deformation force; an electrical wiring section formed of a long flexible material, which is extended from the front section side toward the fixed shaft section side, is bent by abutting against the fixed shaft section and changes the extending direction in the opposite direction, and is stored in the position adjustment space in a bent state by abutting against the position adjustment roller section again and changes the extending direction in the opposite direction, and one end of the electrical wiring section is connected to the EEG electrode; An electroencephalogram measuring device comprising:

2. The modern part is The EEG electrode has a slide groove portion that is slidable, The electrode position adjustment mechanism includes: The electroencephalogram measuring device according to claim 1 , which is constituted by the slide groove portion.

3. The eyeglass frame further includes an extension mechanism for extending and retracting a length between the end piece and the temple piece along a longitudinal direction of the temple piece, The electrode position adjustment mechanism includes: The electroencephalogram measuring device according to claim 1 , which is configured by the expansion and contraction mechanism.

4. 4. The electroencephalogram measuring device according to claim 1, further comprising an electrode biasing means for biasing the electroencephalogram electrode in a direction to place the electrode in the electroencephalogram detection position.

5. The eyeglass-type measuring device body includes: an electroencephalogram measuring module electrically connected to the electroencephalogram electrodes, for measuring the electroencephalogram of the subject based on the detected electroencephalogram signal; A communication module for transmitting electroencephalogram data relating to the measured electroencephalogram to an external device; The electroencephalogram measuring device according to any one of claims 1 to 4, comprising:

6. 6. The electroencephalogram measuring device according to claim 5, further comprising an indifferent electrode electrically connected to the electroencephalogram measuring module and placed on the subject's earlobe.

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