Head-mounted equipment and screening device

Abstract

The utility model relates to the technical field of electroencephalogram equipment, and discloses head-mounted equipment and a screening device. The head-mounted equipment comprises a main body part, a mounting seat and an electroencephalogram sensor, the mounting base is arranged on the main body part. The electroencephalogram sensor comprises a base, a sleeve, a contact and a probe, the base is detachably mounted on the mounting seat, the sleeve is connected with the base, the contact is connected with the sleeve, the probe is arranged on the side, away from the sleeve, of the contact, and the probe is configured to make contact with the scalp to obtain electroencephalogram signals of a testee. Wherein the sleeve is a flexible sleeve, an elastic piece is installed in the sleeve, one end of the elastic piece abuts against the base, and the other end of the elastic piece abuts against the contact. Therefore, the sleeve can be shrunk by different lengths based on the head circumference of different testees, and the probe can continuously and comfortably abut against the scalp under the action of the elastic piece, so that the acquisition of electroencephalogram signals is ensured, and the applicability and comfort of the head-mounted equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of electroencephalogram equipment, and in particular to a head-mounted device and a screening apparatus. Background Art

[0002] In the related art, the EEG detection device is usually a head-mounted device, which obtains EEG signals by installing an EEG sensor in the head-mounted device. The current EEG sensor usually has a hard contact with the head of the subject, and the length of the EEG sensor cannot be adjusted, making it difficult for the head-mounted device to adapt to subjects with different head circumferences, and the head-mounted device is less comfortable to wear. Summary of the invention

[0003] The present application aims to provide a head-mounted device and a screening device. By means of a flexible sleeve cooperating with an elastic part inside the sleeve, the sleeve can be shortened under the action of an external force and restore its original length after the external force is removed. The sleeve can adaptively adjust its own length based on the head circumference of the subject, thereby improving the applicability and comfort of the head-mounted device.

[0004] The present application provides a head mounted device, including:

[0005] Main body;

[0006] A mounting seat, arranged on the main body;

[0007] An electroencephalogram sensor comprises a base, a sleeve, a contact and a probe, wherein the base is detachably mounted on the mounting seat, the sleeve is connected to the base, the contact is connected to the sleeve, the probe is arranged on a side of the contact away from the sleeve, and the probe is configured to contact the scalp to obtain an electroencephalogram signal of a subject;

[0008] The sleeve is a flexible sleeve, an elastic member is installed in the sleeve, one end of the elastic member abuts against the base, and the other end of the elastic member abuts against the contact.

[0009] In some embodiments, the probe comprises:

[0010] At least two first probes are spaced apart and distributed along a first circumferential direction on the contact;

[0011] at least two second probes, spaced apart and distributed along a second circumferential direction on the contact;

[0012] Each of the first probes is a flexible probe, each of the second probes is a hard probe, the radius of the circle corresponding to the first circumferential direction is R1, and the radius of the circle corresponding to the second circumferential direction is R2, satisfying: R1>R2.

[0013] In some embodiments, the side of the contact away from the sleeve is an outwardly convex arched surface, the at least two first probes and the at least two second probes are both arranged on the arched surface, and the test ends of the two first probes are coplanarly arranged with the test ends of the at least two second probes.

[0014] In some embodiments, the contact is a flexible contact, the interior of the contact is hollow to form a deformation cavity, and the deformation cavity is configured to cause the contact to deform under the action of an external force.

[0015] In some embodiments, the mounting seat is configured with a mounting hole, and the base is threadedly connected to the mounting hole.

[0016] In some embodiments, a signal sending unit is also installed in the main body, and the signal sending unit is electrically connected to the probe of the EEG sensor for sending the EEG signal to a terminal.

[0017] In some embodiments, the main body comprises:

[0018] helmet;

[0019] A bracket installed in the helmet;

[0020] Wherein, the bracket includes two relatively arranged fixing parts and a plurality of reinforcing ribs arranged between the two fixing parts, and the plurality of reinforcing ribs are distributed at intervals, wherein each of the reinforcing ribs is provided with the mounting seat, and / or each of the fixing parts is provided with the mounting seat.

[0021] In some embodiments, the reinforcing rib includes at least two adjusting blocks connected in sequence, and each two adjacent adjusting blocks, as well as the adjusting block and the fixing portion, are telescopically connected.

[0022] In some embodiments, at least a portion of the adjustment block is configured with a slide groove, the notch of the slide groove faces away from the helmet, wherein the mounting seat is slidably mounted in the slide groove.

[0023] The present application also provides a screening device, including:

[0024] As in the aforementioned head mounted device, wherein the main body is configured with a first mounting groove;

[0025] A display device, constructed with a second mounting slot, a camera, and a plurality of selection buttons, wherein the display device is configured to display an evaluation form;

[0026] The connecting piece has two ends magnetically connected to the first mounting groove and the second mounting groove respectively.

[0027] The head-mounted device and screening device provided in the embodiments of the present application connect the EEG sensor via the mounting seat on the main body, and use the probe of the EEG sensor to acquire EEG signals. Since the sleeve is a flexible sleeve and an elastic member is installed inside the sleeve, the sleeve can be shortened under the action of an external force and restore its original length after the external force is removed. When the probe contacts the scalp, the reaction force exerted by the subject's head on the probe can shorten the length of the sleeve. Based on the head circumference of different subjects, the sleeve shrinks to different lengths, and under the action of the elastic member, the probe can continuously and comfortably abut against the scalp to ensure the acquisition of EEG signals. In this way, the applicability and comfort of the head-mounted device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0029] Figure 1 A schematic diagram of the structure of the screening device provided in an embodiment of the present application.

[0030] Figure 2 This is one of the structural schematic diagrams of the head mounted device provided in an embodiment of the present application.

[0031] Figure 3 This is a second schematic diagram of the structure of the head mounted device provided in an embodiment of the present application.

[0032] Figure 4 This is a front view of the EEG sensor provided in an embodiment of the present application.

[0033] Figure 5 A cross-sectional view of an EEG sensor provided in an embodiment of the present application.

[0034] Figure 6 A top view of the EEG sensor provided in an embodiment of the present application.

[0035] Figure 7 This is a front view of the display device provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 10-main body, 110-helmet, 120-bracket, 130-fixing part, 140-reinforcement rib, 150-adjustment block, 160-slide groove, 20-mounting seat, 30-EEG sensor, 310-base, 320-sleeve, 330-contact, 340-first probe, 350-second probe, 360-elastic member, 370-arched surface, 380-deformation cavity, 40-display device, 410-camera, 420-selection button, 50-connecting member. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0043] For details, please refer to Figures 1 to 7 , an embodiment of the present application provides a head mounted device. The head mounted device includes a main body 10, a mounting seat 20 and an EEG sensor 30. The mounting seat 20 is arranged on the main body 10. The EEG sensor 30 includes a base 310, a sleeve 320, a contact 330 and a probe, the base 310 is detachably mounted on the mounting seat 20, the sleeve 320 is connected to the base 310, the contact 330 is connected to the sleeve 320, the probe is arranged on a side of the contact 330 away from the sleeve 320, and the probe is configured to contact the scalp to obtain the EEG signal of the subject. Among them, the sleeve 320 is a flexible sleeve 320, and an elastic member 360 is installed in the sleeve 320, one end of the elastic member 360 abuts against the base 310, and the other end abuts against the contact 330.

[0044] In this embodiment, the EEG sensor 30 is connected through the mounting base 20 on the main body 10, and the EEG signal is acquired by using the probe of the EEG sensor 30. Since the sleeve 320 is a flexible sleeve 320, and an elastic member 360 is installed in the sleeve 320, the sleeve 320 can be shortened under the action of an external force, and restore its original length after the external force is removed. When the probe contacts the scalp, the reaction force exerted by the subject's head on the probe can shorten the length of the sleeve 320. Based on the head circumference of different subjects, the sleeve 320 shrinks to different lengths, and under the action of the elastic member 360, the probe can continuously and comfortably abut against the scalp to ensure the acquisition of EEG signals. In this way, the applicability and comfort of the head-mounted device can be improved.

[0045] The sleeve 320 and the contact 330 may be integrally formed. The two may be made of the same material, for example, both may be made of rubber. The sleeve 320 may be a cylindrical sleeve 320, and the elastic member 360 inside the sleeve 320 may be a spring. The two ends of the spring abut against the base 310 and the contact 330 respectively, so that the spring can be used to support the sleeve 320 to prevent the sleeve 320 from bending.

[0046] A clamping column may also be provided in the sleeve 320, and the length of the clamping column is much smaller than the length of the sleeve 320. The clamping column is fixed to the base 310, and the spring is sleeved on the clamping column to achieve the position fixation of the spring.

[0047] In some embodiments, Figure 6 As shown, the probe includes at least two first probes 340 and at least two second probes 350. At least two first probes 340 are spaced apart along the first circumferential direction on the contact 330. At least two second probes 350 are spaced apart along the second circumferential direction on the contact 330. Each first probe 340 is a flexible probe, and each second probe 350 is a hard probe. The radius of the circle corresponding to the first circumferential direction is R1, and the radius of the circle corresponding to the second circumferential direction is R2, satisfying: R1>R2.

[0048] Among them, the circle corresponding to the first circumferential direction and the circle corresponding to the second circumferential direction are both arranged with the contact 330 at the same center, that is, the centers of the three circles coincide. Then the circle corresponding to the first circumferential direction is located outside the circle corresponding to the second circumferential direction. Then at least two first probes 340 can be located in the outer circle of at least two second probes 350. The first probe 340 located in the outer circle is a flexible probe, and the second probe 350 located in the inner circle is a hard probe. The first probe 340 located in the outer circle can push aside the hair, so that the second probe 350 located in the inner circle can better contact the scalp, reduce the contact impedance between the second probe 350 and the skin, and enable the second probe 350 to more accurately obtain the EEG signal.

[0049] It is understandable that at least two first probes 340 and at least two second probes 350 simultaneously acquire EEG signals to improve the accuracy of signal acquisition by the EEG sensor 30. The electrodes on the first probe 340 and the second probe 350 for acquiring EEG signals can both be made of dry flexible Ag / AgCl (silver / silver chloride) coated conductive polymer.

[0050] For example, eight first probes 340 may be arranged in a first circumferential direction of the contact 330, and seven second probes 350 may be arranged in a second circumferential direction of the contact 330. The radius R1 of the circle corresponding to the first circumferential direction may be 16 mm, and the radius R2 of the circle corresponding to the second circumferential direction may be 12 mm.

[0051] The above arrangement can also make the first probe 340 and the second probe 350 effectively contact the scalp, effectively reducing the motion artifact caused by the displacement of the probes during wearing. The first probe 340 located in the outer circle cooperates with the second probe 350 located in the inner circle to obtain an EEG signal with a high signal-to-noise ratio, ensuring the reliability of the EEG signal.

[0052] In some embodiments, the circle corresponding to the first circumferential direction and the circle corresponding to the second circumferential direction may not be co-centered, and the centers of the two circles may be far away from each other. At this time, at least two first probes 340 may be located outside at least two second probes 350, so that the first probes 340 located in the outer circle are flexible probes, and the second probes 350 located in the inner circle are hard probes. The first probes 340 located in the outer circle can part the hair, so that the second probes 350 located in the inner circle can better contact the scalp, reduce the contact impedance between the second probes 350 and the skin, and enable the second probes 350 to more accurately obtain EEG signals.

[0053] like Figure 4 and Figure 5 As shown, in some embodiments, the side of the contact 330 away from the sleeve 320 is an outwardly convex arched surface 370, at least two first probes 340 and at least two second probes 350 are arranged on the arched surface 370, and the test ends of the two first probes 340 and the test ends of the at least two second probes 350 are arranged coplanarly.

[0054] Based on the design of the arched surface 370, the appearance of the contact 330 can be optimized. At the same time, the length of the first probe 340 located in the inner circle can be shortened, saving the material of the first probe 340 and reducing the cost. Since the test end of the first probe 340 and the test end of the second probe 350 are arranged on the same plane, it can be ensured that all probes of each EEG sensor 30 are in the same plane, so that each probe can fit the scalp, ensuring the reliability and accuracy of EEG signal acquisition.

[0055] The testing end of the first probe 340 is an end of the first probe 340 away from the contact 330 , and the testing end of the second probe 350 is an end of the second probe 350 away from the contact 330 .

[0056] like Figure 5 As shown, in some embodiments, the contact 330 is a flexible contact 330 , and a deformation cavity 380 is formed in the interior of the contact 330 . The deformation cavity 380 is configured to cause the contact 330 to deform under the action of an external force.

[0057] It can be understood that, since the contact 330 is a flexible contact 330 and the interior of the contact 330 is hollow, when the first probe 340 and the second probe 350 contact the subject's scalp, the reaction force of the subject's scalp on the EEG sensor 30 can cause the contact 330 to deform. Thus, the contact between the first probe 340 and the second probe 350 and the scalp can be made more comfortable.

[0058] It is understandable that, with the adaptive adjustment of the sleeve 320 and the contact 330, the EEG sensor 30 can be better adapted to subjects with different head sizes. At the same time, it can improve the comfort of wearing the head-mounted device and perform EEG detection on the subject.

[0059] In which, since the contact 330 is an arched structure, the deformation cavity 380 may also be an arched cavity structure.

[0060] In some embodiments, the mounting base 20 is configured with a mounting hole, and the base 310 is threadedly connected to the mounting hole. The base 310 is a hard base 310, and an external thread is configured on the outer surface of the base 310, and an internal thread matching the external thread is configured on the inner surface of the mounting hole. By connecting the external thread and the internal thread, a detachable connection between the base 310 and the mounting base 20 is achieved, so as to facilitate the replacement and repair of the EEG sensor 30. It is understandable that when the EEG sensor 30 is damaged or reaches the end of its service life, the threaded detachable connection can facilitate the replacement of a new EEG sensor 30.

[0061] The bottom surface of the mounting hole is configured with a first electrical connection portion, and a second electrical connection portion is configured on the side of the base 310 facing the mounting hole. The first electrical connection portion is electrically connected to a power supply, a signal transmitting unit, etc. inside the head-mounted device. The second electrical connection portion is electrically connected to the first probe 340 and the second probe 350. When the base 310 is threadedly connected to the mounting hole, the first electrical connection portion and the second electrical connection portion form an electrical connection. As a result, the first probe 340 and the second probe 350 can transmit the EEG signal to the signal transmitting unit, thereby realizing the transmission of the EEG signal.

[0062] In some embodiments, the base 310 can also be directly snapped into the mounting hole. For example, a flexible layer can be provided on the peripheral side of the base 310, and the base 310 can be fixed by pressing the flexible layer against the hole wall of the mounting hole. For example, an adjustment groove can also be provided on the peripheral side of the base 310, a spring is installed in the adjustment groove, and a locking block is installed on the spring. At least part of the locking block is made to pass through the adjustment groove, and when the base 310 is snapped into the mounting hole, the locking block can be abutted against the hole wall of the mounting hole to achieve the position fixation between the base 310 and the mounting hole.

[0063] In some embodiments, a signal sending unit is also installed in the main body 10, and the signal sending unit is electrically connected to the probe of the EEG sensor 30 for sending the EEG signal to the terminal.

[0064] The electroencephalogram signal acquired by the electroencephalogram sensor 30 is received by the signal transmitting unit, and then the electroencephalogram signal is sent to the terminal, so that the electroencephalogram signal can be displayed on the terminal.

[0065] The signal transmitting unit may include a filter, a signal amplifier and a signal transmitter, wherein the filter may filter noise in the EEG signal, the signal amplifier may amplify the EEG signal, and then transmit the EEG signal to the terminal through the signal transmitter. The bandwidth of the signal amplifier may be 0.5 Hz to 50 Hz, and the sampling rate may be 250 Hz.

[0066] The terminal may be a computer, an iPad, a mobile phone or the like, and the signal transmitting unit may send the EEG signal to the terminal by means of wireless signal transmission.

[0067] like Figures 1 to 3 As shown, in some embodiments, the main body 10 includes a helmet 110 and a bracket 120. The bracket 120 is installed in the helmet 110. The bracket 120 includes two oppositely arranged fixing parts 130 and a plurality of reinforcing ribs 140 arranged between the two fixing parts 130, and the plurality of reinforcing ribs 140 are distributed at intervals, wherein each reinforcing rib 140 is provided with a mounting seat 20, and / or each fixing part 130 is provided with a mounting seat 20.

[0068] The main body 10 is formed based on the helmet 110 and the bracket 120. The bracket 120 is located inside the helmet 110 and is used to connect the mounting seat 20 and the EEG sensor 30. When the subject wears the helmet 110, the EEG sensor 30 can contact the scalp to obtain EEG signals.

[0069] The two fixing parts 130 can be fixed to the inner surface of the helmet 110. For example, the two fixing parts 130 are respectively installed on the inner surface of the helmet 110 by fasteners. A plurality of reinforcing ribs 140 are arranged between the two fixing parts 130, and the plurality of reinforcing ribs 140 are distributed at intervals, so that the bracket 120 does not need to fully cover the inner surface of the helmet 110, thereby reducing the consumables of the bracket 120. It is understandable that it is only necessary to set the reinforcing ribs 140 corresponding to the position where the EEG signal is to be obtained, and to set the mounting seat 20 and the EEG sensor 30 on the reinforcing ribs 140.

[0070] In some embodiments, a plurality of reinforcing ribs 140 may be spaced apart along the arc direction of the helmet 110. For example, Figure 1 As shown, five reinforcing ribs 140 can be arranged at intervals along the arc direction of the helmet 110, and multiple mounting seats 20 can be arranged on each reinforcing rib 140, so that each reinforcing rib 140 can have multiple EEG sensors 30 to obtain EEG signals.

[0071] In some embodiments, the reinforcing rib 140 can be set as an internal hollow structure, and the channel inside the reinforcing rib 140 can be used for wiring to facilitate the electrical connection between each EEG sensor 30 and the power supply, and to achieve the signal connection between each EEG sensor 30 and the signal transmitting unit.

[0072] In some embodiments, a wiring groove may also be arranged on the side of the reinforcing rib 140 facing the helmet 110, and the electrical connection between the EEG sensor 30, the power supply and the signal transmitting unit may be achieved through wiring in the wiring groove.

[0073] In some embodiments, a wiring groove may be arranged on the inner side of the helmet 110, and the wiring is directly performed on the inner surface of the helmet 110, so that the cable is connected at a position corresponding to the EEG sensor 30, thereby realizing electrical connection between the EEG sensor 30, the power supply and the signal transmitting unit.

[0074] The main body 10 is formed based on the helmet 110 and the bracket 120, and the head-mounted device is formed in conjunction with the electroencephalogram sensor 30. The helmet 110 and the bracket 120 can be made of lightweight materials, so that the weight of the head-mounted device is only 1600 grams, which improves the comfort of the subject. For example, the helmet 110 is made of PVC (Polyviny lchl oride, polyvinyl chloride) material. Based on actual needs, the length, width and height of the helmet 110 can be set to 245 mm, 243 mm and 253 mm respectively.

[0075] like Figure 4 and Figure 5 As shown, in some embodiments, the reinforcing rib 140 includes at least two sequentially connected adjusting blocks 150 , and each two adjacent adjusting blocks 150 , as well as the adjusting block 150 and the fixing portion 130 , are telescopically connected.

[0076] Since the reinforcing rib 140 is composed of a plurality of telescopically connected adjustment blocks 150 , the overall length of the reinforcing rib 140 can be adjusted by telescopic adjustment between two adjacent adjustment blocks 150 , so that the bracket 120 can better adapt to subjects with different head circumferences.

[0077] Based on the adjustment function of the reinforcing ribs 140 and the EEG sensor 30, the head-mounted device can adapt to subjects with a head circumference of 50 cm to 62 cm, significantly improving the applicability and comfort of the head-mounted device.

[0078] The opposite sides of the adjustment block 150 can be respectively constructed with a card slot and a card connector, and two adjacent adjustment blocks 150 can be inserted into the card slot by the card connector to achieve connection. The slot wall of the card slot is provided with a plurality of positioning grooves at intervals along the length direction, and the card connector is provided with a positioning protrusion. The positioning protrusion can be connected to different positioning grooves to adjust the distance between two adjacent adjustment blocks 150, thereby adjusting the length of the reinforcing rib 140. A limiting portion is provided at the notch position of the card slot, and when the positioning protrusion on the card connector abuts against the limiting portion, it is the maximum distance length between the two adjacent adjustment blocks 150, and the limiting portion can prevent the card connector from falling off the card slot.

[0079] Based on the structural design of the adjustment block 150, the fixing portion 130 can also be provided with a slot and a clamping member, wherein the slot of the adjustment block 150 on one side is connected to the clamping member of the fixing portion 130, and the clamping member of the adjustment block 150 on the other side is connected to the slot of the fixing portion 130. Thus, the adjustment block 150 and the fixing portion 130 can also be connected telescopically.

[0080] Among them, based on the above-mentioned telescopic adjustment method of the adjustment block 150 and the fixing member, the length of the reinforcing rib 140 can be adjusted by manually pulling the adjustment block 150. It can be understood that the bracket 120 can be adjusted by manually pulling the adjustment block 150. Figure 4 The displayed status switches to Figure 5 Status shown.

[0081] In some embodiments, at least a portion of the adjustment block 150 is configured with a slide groove 160 , the notch of the slide groove 160 faces away from the helmet 110 , wherein the mounting seat 20 is slidably mounted in the slide groove 160 .

[0082] Based on constructing the slide groove 160 on at least part of the adjustment block 150, the position of the installation seat 20 can be properly adjusted by sliding the installation seat 20 in the slide groove 160. Thus, the position adjustment of the EEG sensor 30 is achieved, so as to better adapt to different subjects.

[0083] Among them, the slide groove 160 extends along the length direction of the adjustment block 150, so that the position of the EEG sensor 30 can be adjusted in the length direction of the adjustment block 150. Specifically, the mounting seat 20 has a connecting section extending to the inside of the slide groove 160. The connecting section can be set to a T shape. The slide groove 160 is constructed with baffles extending toward the center of the groove on both sides of the groove. The T-shaped connecting section has a horizontal portion and a vertical portion, the vertical portion is located between the two baffles, and the horizontal portion is located in the slide groove 160. Therefore, the baffle can be used to limit the connecting section to prevent the base 310 from falling off from the slide groove 160.

[0084] In some embodiments, the transverse portion of the connecting section abuts against the wall of the slide slot 160. The wall of the slide slot 160 is configured with a conductive rail along the extension direction of the slide slot 160. The connecting section contacts the conductive rail so that the mounting seat 20 can be electrically connected to the adjustment block 150 regardless of its position.

[0085] In some embodiments, a rechargeable lithium battery may be installed inside the helmet 110 to power the signal transmitting unit, the first probe 340 and the second probe 350 to ensure the normal operation of the head-mounted device. A charging interface may be designed on the surface of the helmet 110, and the charging interface may be a USB-C charging interface or a type-C charging interface, and come with a 5V / 2A adapter. The rechargeable lithium battery can be fully charged in about 2 hours and can run continuously for 7 hours.

[0086] A silicone cap may be provided on the charging interface of the helmet 110. The silicone cap is inserted into the charging interface so that the helmet 110 can seal the charging interface when not charging. This can achieve waterproof and dustproof effects.

[0087] The embodiment of the present application also provides a screening device. The screening device includes a head-mounted device as in the above embodiment, a display device 40, and a connector 50. Among them, the main body 10 is configured with a first mounting slot. The display device 40 is configured with a second mounting slot, a camera 410 and a plurality of selection buttons 420, and the display device 40 is configured to display an evaluation form. The two ends of the connector 50 are magnetically connected to the first mounting slot and the second mounting slot respectively.

[0088] In this embodiment, the EEG sensor 30 is connected through the mounting base 20 on the main body 10, and the EEG signal is acquired by using the probe of the EEG sensor 30. Since the sleeve 320 is a flexible sleeve 320, and an elastic member 360 is installed in the sleeve 320, the sleeve 320 can be shortened under the action of an external force, and restore its original length after the external force is removed. When the probe contacts the scalp, the reaction force exerted by the subject's head on the probe can shorten the length of the sleeve 320. Based on the head circumference of different subjects, the sleeve 320 shrinks to different lengths, and under the action of the elastic member 360, the probe can continuously and comfortably abut against the scalp to ensure the acquisition of EEG signals. In this way, the applicability and comfort of the head-mounted device can be improved.

[0089] The display device 40 can display the evaluation form to allow the subject to make a selection based on the content of the evaluation form. For example, based on the evaluation content of the evaluation form, the subject presses the selection button 420 to make a corresponding selection. In addition, the EEG signal is obtained during the selection process, and the screening result can be output based on the EEG signal graph and the evaluation result of the evaluation form to improve the accuracy of the screening.

[0090] For example, the display device 40 may be an i Pad. The evaluation form displayed by the display device 40 may be one or more of the Hamilton Depression Rating Scale (HAM-D), the Self-Rating Depression Inventory (BDI), and the Depression Anxiety Coping Questionnaire (DASS). Thus, the head-mounted device in conjunction with the display device 40 may be used to screen patients with depression. In the actual use stage, different types of evaluation forms are selected based on the age, cultural background, common language, etc. of the subject.

[0091] The camera 410 on the display device 40 may be used to capture facial information of the subject, such as eye information, expression information, and the like.

[0092] In this embodiment, by constructing a first mounting groove on the helmet 110 of the main body 10 and constructing a second mounting groove on the display device 40, the connecting member 50 is magnetically connected to the first mounting groove and the second mounting groove. The display device 40 can be fixed directly in front of the helmet 110, which is beneficial for the subject to directly view the content displayed on the display device 40.

[0093] Based on the magnetic connection between the connecting member 50 and the first mounting groove and the second mounting groove, the connecting member 50 is a magnetic connecting member 50, and magnetic members are arranged in the first mounting groove and the second mounting groove. The two ends of the magnetic connecting member 50 are respectively magnetically connected to the magnetic members, so as to realize the magnetic connection between the connecting member 50 and the first mounting groove and the second mounting groove.

[0094] A snap assembly may be provided in the first mounting groove and the second mounting groove, and the end of the connector 50 may be snapped into the snap assembly to make the connection between the connector 50 and the first mounting groove and the second mounting groove more reliable and stable.

[0095] The connecting member 50 may be a connecting rod to connect the display device 40 and the head-mounted device through a rod-shaped structure.

[0096] In some embodiments, the plurality of selection buttons 420 may be a confirmation button, a cancel button, a return button, a go to next button, etc. The plurality of selection buttons 420 may also be buttons of different colors, for example, a red button, a green button, a yellow button, a blue button, etc., and each color button corresponds to a selection. Thus, based on the design of the quick selection button 420, it is convenient for the elderly and children to quickly fill in the evaluation form.

[0097] A voice receiving unit may also be installed in the display device 40 so that the display device 40 can be voice controlled, which is helpful for people who are not convenient to select buttons to fill in the evaluation form.

[0098] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0099] In some embodiments, the camera 410 on the display device 40 can be set to multiple. The multiple cameras 410 can be used to obtain eyeball signals and facial expression models respectively. Based on the acquisition of eyeball signals and facial expression signals, the emotional state, cognitive state, etc. of the subject in the process of filling out the evaluation form can be obtained, which is conducive to the subsequent result output.

[0100] The above is a detailed introduction to a head-mounted device and a screening device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A head mounted device, characterized in that: include: Main body; A mounting seat, arranged on the main body; An electroencephalogram sensor comprises a base, a sleeve, a contact and a probe, wherein the base is detachably mounted on the mounting seat, the sleeve is connected to the base, the contact is connected to the sleeve, the probe is arranged on a side of the contact away from the sleeve, and the probe is configured to contact the scalp to obtain an electroencephalogram signal of a subject; The sleeve is a flexible sleeve, an elastic member is installed in the sleeve, one end of the elastic member abuts against the base, and the other end of the elastic member abuts against the contact.

2. The head mounted device according to claim 1, wherein: The probe comprises: At least two first probes are spaced apart and distributed along a first circumferential direction on the contact; at least two second probes, spaced apart and distributed along a second circumferential direction on the contact; Each of the first probes is a flexible probe, each of the second probes is a hard probe, the radius of the circle corresponding to the first circumferential direction is R1, and the radius of the circle corresponding to the second circumferential direction is R2, satisfying: R1>R2.

3. The head mounted device according to claim 2, wherein: The side of the contact away from the sleeve is an outwardly convex arched surface, the at least two first probes and the at least two second probes are both arranged on the arched surface, and the test ends of the two first probes are arranged coplanarly with the test ends of the at least two second probes.

4. The head mounted device according to claim 1, wherein: The contact is a flexible contact, and a deformation cavity is formed in the interior of the contact. The deformation cavity is configured to cause the contact to deform under the action of an external force.

5. The head mounted device according to claim 1, wherein: The mounting seat is configured with a mounting hole, and the base is threadedly connected to the mounting hole.

6. The head mounted device according to claim 1, wherein: A signal sending unit is also installed in the main body, and the signal sending unit is electrically connected to the probe of the electroencephalogram sensor and is used to send the electroencephalogram signal to a terminal.

7. The head mounted device according to any one of claims 1 to 6, characterized in that: The main body comprises: helmet; A bracket installed in the helmet; Wherein, the bracket includes two relatively arranged fixing parts and a plurality of reinforcing ribs arranged between the two fixing parts, and the plurality of reinforcing ribs are distributed at intervals, wherein each of the reinforcing ribs is provided with the mounting seat, and / or each of the fixing parts is provided with the mounting seat.

8. The head mounted device according to claim 7, wherein: The reinforcing rib comprises at least two adjusting blocks connected in sequence, and each two adjacent adjusting blocks, as well as the adjusting block and the fixing portion, can be telescopically connected.

9. The head mounted device according to claim 8, wherein: At least part of the adjusting blocks are formed with a slide groove, the notch of the slide groove faces away from the helmet, wherein the mounting seat is slidably mounted in the slide groove.

10. A screening device, characterized in that: include: The head mounted device according to any one of claims 1 to 9, wherein the main body is configured with a first mounting groove; A display device, constructed with a second mounting slot, a camera, and a plurality of selection buttons, wherein the display device is configured to display an evaluation form; The connecting member has two ends which are magnetically connected to the first mounting groove and the second mounting groove respectively.

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