Portable electroencephalogram acquisition equipment

Abstract

The invention provides a portable electroencephalogram collecting device which comprises a collector and a charging bin, the collector comprises a main machine and a collecting part detachably matched with the main machine, the main machine comprises a machine shell, a first circuit board, a first connector and a third connector, and the collecting part comprises a flexible glue sticker, a second circuit board, a second connector and an electrode. The flexible glue patch is attached to the forehead of a user, the second circuit board is installed in the flexible glue patch, the electrode is installed at the bottom of the flexible glue patch and connected with the second circuit board, the second connector is installed at the top of the flexible glue patch and electrically connected with the second circuit board, and the second connector is matched with the first connector. The charging bin comprises a bin body and a third circuit board arranged in the bin body, a profiling groove matched with the collector is formed in the upper end face of the bin body, and a fourth connector matched with the third connector and electrically connected with the third circuit board is arranged in the profiling groove. The equipment is high in wearing comfort, convenient to use, small in overall size, convenient to disassemble and assemble, portable and high in functionality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electroencephalogram equipment, in particular to a portable electroencephalogram acquisition device. BACKGROUND

[0002] Electroencephalogram signals are the comprehensive recording of local neuronal electrical activity from the intracranial or extracranial scalp of the brain, which contains rich physiological information and can be used to evaluate the attention and relaxation of the wearer, as well as for the detection and treatment of brain diseases and intelligent control fields.

[0003] As shown in the patent document with publication number CN117297614A, the most commonly used electroencephalogram signal acquisition device at present is mainly in the form of a brain cap acquisition system. In addition to the brain cap, a certain length of electrode lead is usually equipped between the brain cap and the electroencephalogram signal acquisition host. The brain cap acquisition system is complicated to prepare before use and is not portable.

[0004] In order to solve the above problems, as shown in the existing patent document with publication number CN115590519A, portable electroencephalogram acquisition devices have appeared on the market. However, these devices at least have one or several of the following defects: 1. The existing electroencephalogram equipment is usually bulky, complex to use, and not convenient for long-term wear, especially in home and daily monitoring applications.

[0005] 2. The existing electroencephalogram equipment often uses wet electrodes, which need to be coated with conductive glue to ensure low contact resistance with the scalp. Since the conductive glue will dry and become viscous during use, it is easy to cause skin irritation and allergic reactions, resulting in discomfort for the wearer. The accumulation of discomfort will reduce the user's long-term wear compliance, making it difficult to meet the continuous monitoring use requirements. 3. The existing electroencephalogram equipment generally fixes the electrode assembly through an elastic fabric headband, but the tightness of the headband is difficult to control and needs to be adjusted according to the size of the user's head. The headband needs to be tight enough to ensure the stability of the electrode position during use. The tight headband will exert a large pressure on the head, and the user will feel oppressed and tired after long-term wear. If the headband is too loose, the electrode will slip and the signal will be unstable, making it difficult to balance between comfort and signal stability. 4. The existing electroencephalogram equipment sets a charging base, but its structure and function are single, and it can only perform simple charging function. Moreover, it generally adopts a USB interface for plugging, and the user needs to repeatedly align the plug-in terminals to charge. The contact between the acquisition host and the transmission base is not firm, and the charging is unstable, making it difficult to meet the long-term use requirements. 5. Existing EEG devices include at least a headband, electrodes, acquisition module, and charging base. With many components, users need to repeatedly wear, adjust, clean, and maintain them. The operation steps are cumbersome, which not only increases the barrier to use but also prolongs the preparation time, making it unsuitable for quick deployment during daily life or before sleep. Summary of the Invention

[0006] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a portable EEG acquisition device that can at least solve one of the problems in the prior art.

[0007] To achieve the above and other related objectives, the present invention provides a portable EEG acquisition device, including an acquisition unit and a charging case. The acquisition unit includes a main unit and an acquisition part detachably coupled to the main unit. The main unit includes a housing, a first circuit board, a first connector, and a third connector. The first circuit board is installed inside the housing, and the first and third connectors are installed at the bottom of the housing and connected to the first circuit board. The acquisition part includes a soft adhesive patch, a second circuit board, a second connector, and electrodes. The soft adhesive patch is attached to the user's forehead, the second circuit board is installed inside the soft adhesive patch, the electrodes are installed at the bottom of the soft adhesive patch and connected to the second circuit board, and the second connector is installed at the top of the soft adhesive patch and electrically connected to the second circuit board. The second connector mates with the first connector. The charging case includes a case body and a third circuit board disposed within the case body. The upper surface of the case body is provided with a contoured groove that mates with the acquisition unit, and a fourth connector that is adapted to the third connector and electrically connected to the third circuit board is disposed within the contoured groove.

[0008] In some embodiments, a first positioning groove is provided at the bottom of the housing, a first connector is installed in the first positioning groove, a second connector is limited to the first positioning groove, and the first connector and the second connector are magnetically attracted to each other.

[0009] In some embodiments, the first connector includes a first mounting base, a first spring pin, and a first magnet; the second connector includes a second mounting base, a second spring pin, and a second magnet. The first mounting base is mounted on a first circuit board; the first spring pin is fitted onto the first mounting base and its first end is soldered to the first circuit board; the second mounting base is mounted on a flexible adhesive pad; the second spring pin is fitted onto the second mounting base and its first end is soldered to the second circuit board; the second ends of the first spring pin and the second ends of the second spring pin are in elastic contact; and the second circuit board is a flexible circuit board.

[0010] In some embodiments, the housing is generally arc-shaped and includes a detachable upper housing and a lower housing. A first receiving cavity is formed between the upper housing and the lower housing. A first circuit board is installed in the first receiving cavity. A first positioning groove is formed in the lower housing. The upper end of the first connector is soldered to the first circuit board, and the lower end extends into the first positioning groove.

[0011] In some embodiments, the bottom of the shell is provided with a first magnetic attraction member, and the soft gel patch is provided with a second magnetic attraction member matched with the first magnetic attraction member.

[0012] In some embodiments, the bottom of the shell is provided with a first magnetic attraction member, and the soft gel patch is provided with a second magnetic attraction member matched with the first magnetic attraction member.

[0013] In some embodiments, the main machine further comprises a light source assembly and a light guide, the light source assembly is arranged inside the shell and electrically connected with the first circuit board, one end of the light guide is sleeved on the outer periphery of the light source of the light source assembly, and the other end extends to the shell and is exposed outside.

[0014] In some embodiments, the portable electroencephalogram acquisition device further comprises a fitting member, the cartridge body comprises an inner shell and an outer shell, the profiling groove is arranged on the first end face of the inner shell, the outer shell is sleeved on the outer periphery of the inner shell and surrounds the second end face of the inner shell to form a third accommodating cavity, the third circuit board is installed in the third accommodating cavity, the bottom of the outer shell is provided with a second accommodating cavity for accommodating the fitting member, and the fitting member is matched with the soft gel patch.

[0015] In some embodiments, the fitting member is provided with a relief hole matched with the electrode, the electrode is a dry electrode, and the fitting member is a disposable low-sensitization gel patch.

[0016] In some embodiments, the cartridge body further comprises a bottom cover which is detachably installed on the bottom of the outer shell and used for shielding the second accommodating cavity, the second accommodating cavity is provided with a positioning column matched with the fitting member, the positioning column can penetrate through the relief hole of the fitting member, the third magnetic attraction member is installed on the positioning column, and the fourth magnetic attraction member matched with the third magnetic attraction member is arranged on the bottom cover.

[0017] As described above, the portable electroencephalogram acquisition device has the following beneficial effects: 1. The acquisition part adopts the cooperation mode of dry electrodes and soft gel patches to realize the acquisition of forehead electroencephalogram signals, has small pressure on the head, does not need to use conductive glue, eliminates the stimulation of conductive glue on the skin, and has high wearing comfort; 2. The acquisition part and the main machine are detachably connected, the cooperation of accurate groove positions and magnetic attraction positioning design can not only ensure the reliable adhesion of the electrodes to the skin, but also stabilize the position of the main machine after assembly and improve the signal stability; 3. The light source assembly and the light guide are arranged to realize the light prompting effect, so that the connection state can be checked in time and the use demand is met; 4. The charging cartridge can be matched to form a portable electroencephalogram acquisition device, the charging cartridge has the functions of charging and storage, and the special structure of the charging cartridge can realize the functions of "light paste use, put back charging", no need for accurate alignment, no need for complicated plugging and multi-step debugging, and significantly improve the operation convenience.

[0018] 5. The charging compartment of the present invention not only has the traditional functions of charging and accommodating the collector, but also has a second receiving cavity formed between the outer shell and the inner shell for accommodating the fitting part used with the collection unit. When in use, the fitting part can be taken out by opening the bottom cover and assembled onto the soft adhesive of the collection unit. When not in use, it can be covered by the bottom cover. It is not only highly functional and convenient to use, but also effectively saves space and realizes multiple uses of one compartment.

[0019] In summary, the portable EEG acquisition device of the present invention has at least the advantages of high wearing comfort, ease of use, small overall size, easy assembly and disassembly, portability, and strong functionality. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the portable EEG acquisition device of the present invention; Figure 2 This is a three-dimensional structural diagram of the data collector of the present invention; Figure 3 for Figure 2 A three-dimensional structural diagram of the data collector from another angle; Figure 4 for Figure 2 The diagram shown is an exploded view of the data collector. Figure 5 This is a three-dimensional structural diagram of the host computer of the present invention; Figure 6 This is a three-dimensional structural diagram of the acquisition unit of the present invention after perspective view; Figure 7 for Figure 2 The diagram shows a top view of the data collector. Figure 8 for Figure 7 The diagram shows a cross-sectional view of the EEG signal acquisition device along the AA direction. Figure 9 for Figure 5 The diagram shows the three-dimensional structure of the host machine after omitting some structural elements. Figure 10 This is a three-dimensional structural diagram of the upper housing of the present invention; Figure 11 This is a three-dimensional structural diagram of the charging compartment of the present invention; Figure 12 for Figure 11 The diagram shows the three-dimensional structure of the charging compartment after omitting some structural elements. Figure 13 for Figure 11 The diagram shows a top view of the charging compartment. Figure 14 for Figure 13 The diagram shows a cross-sectional view of the charging compartment along the BB direction. Figure 15 for Figure 11 A three-dimensional structural diagram of the charging compartment from another angle; Figure 16 for Figure 15 The diagram shown is a three-dimensional structural representation of the charging compartment without the bottom cover. Figure 17 This is a three-dimensional structural diagram of the bottom cover of the present invention; Figure 18 This is a three-dimensional structural diagram of the outer shell of the present invention.

[0021] Figures 1-18 Reference numerals in the attached figures: 1-Collector; 2-Charging compartment; 3-Adhesive piece; 11-Main unit; 12-Collector; 21-Compartment body; 22-Compartment cover; 23-Modible connector; 24-Third circuit board; 25-Strap; 31-Allowing hole; 111-Housing housing; 112-First circuit board; 113-First connector; 114-First magnetic chuck; 115-Battery; 116-Light source assembly; 117-Light guide; 118-Switch button; 119-Third connector; 121-Soft adhesive; 122-Second circuit board; 123-Electrode; 124-Second connector; 125-Second magnetic chuck; 210-Third receiving cavity; 211-Inner shell; 212-Outer shell; 213-Bottom cover; 214-Sixth magnetic chuck; 221-Fifth magnetic chuck; 1110-First Receiving cavity; 1111-Upper housing; 1112-Lower housing; 1131-First mounting base; 1132-First spring pin; 1133-First magnet; 1241-Second mounting base; 1242-Second spring pin; 1243-Second magnet; 2110-Shaped groove; 2111-Fourth connector; 2112-Second positioning groove; 2120-Second receiving cavity; 2121-Cover removal groove; 2122-Positioning post; 2123-Third magnetic suction element; 2124-Connecting hole; 2125-USB interface; 2126-Second mounting hole; 2131-Fourth magnetic suction element; 2132-Positioning protrusion; 2133-Foot pad; 1111a-Groove; 1111b-Slot; 1112a-First positioning groove; 1112b-Flange; 1112c-Snap fastener. Detailed Implementation

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concepts of the present application in a schematic manner, and only show the components related to the present application in the diagrams, rather than being drawn according to the number, shape and size of the components in actual implementation. The shapes, number and proportions of the components in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0024] Please refer to Figures 1-18 The present application provides a portable electroencephalogram acquisition device, which belongs to the technical field of electroencephalogram devices and can overcome the shortcomings of poor wearing comfort, poor acquisition device connection stability, inconvenient operation and inability to meet the use requirements of the traditional acquisition device.

[0025] As Figures 1-18 shown, the portable electroencephalogram acquisition device provided in one of the embodiments includes an acquisition device 1 and a charging bin 2.

[0026] As Figures 1-10 shown, the acquisition device 1 includes a host 11 and an acquisition part 12 detachably connected with the host 11. The host 11 includes a casing 111, a first circuit board 112, a first connector 113 and a third connector 119. The first circuit board 112 is installed inside the casing 111. The first connector 113 and the third connector 119 are installed at the bottom of the casing 111 and connected with the first circuit board 112. The acquisition part 12 includes a soft gel patch 121, a second circuit board 122, a second connector 124 and an electrode 123. The soft gel patch 121 is attached to the forehead of a user. The second circuit board 122 is installed inside the soft gel patch 121. The electrode 123 is installed at the bottom of the soft gel patch 121 and connected with the second circuit board 122. The second connector 124 is installed at the top of the soft gel patch 121 and electrically connected with the second circuit board 122. The second connector 124 is matched with the first connector 113.

[0027] Preferably, the bottom of the casing 111 is provided with a first positioning groove 1112a. The first connector 113 is installed in the first positioning groove 1112a. The second connector 124 is limitedly matched with the first positioning groove 1112a. The first connector 113 and the second connector 124 are magnetically attracted and matched.

[0028] As preferred, the first connector 113 comprises a first mounting base 1131, a first spring pin 1132 and a first magnet 1133, the second connector 124 comprises a second mounting base 1241, a second spring pin 1242 and a second magnet 1243, the first mounting base 1131 is mounted on the first circuit board 112, the first spring pin 1132 is sleeved on the first mounting base 1131 and the first end is welded on the first circuit board 112, the second mounting base 1241 is mounted on the soft rubber patch 121, the second spring pin 1242 is sleeved on the second mounting base 1241 and the first end is welded on the second circuit board 122, the second end of the first spring pin 1132 elastically contacts the second end of the second spring pin 1242, and the second circuit board 122 is a flexible circuit board.

[0029] As further preferred, the first connector 113 and the second connector 124 are Pogo Pin connectors.

[0030] As preferred, the bottom of the shell 111 is provided with a first magnetic member 114, and the soft rubber patch 121 is provided with a second magnetic member 125 matched with the first magnetic member 114.

[0031] As preferred, the shell 111 of the embodiment is in an overall arc structure, and the shell 111 comprises an upper shell 1111 and a lower shell 1112 detachably matched, a first accommodating cavity 1110 is formed between the upper shell 1111 and the lower shell 1112, the first circuit board 112 is mounted in the first accommodating cavity 1110, a first positioning groove 1112a is formed in the lower shell 1112, the upper end of the first connector 113 is welded on the first circuit board 112, and the lower end extends into the first positioning groove 1112a.

[0032] As further preferred, the first magnetic member 114 is two, which are symmetrically arranged at the two ends of the length direction of the lower shell 1112.

[0033] As preferred, the upper end of the lower shell 1112 is provided with a flange 1112b and a buckle 1112c, the bottom of the upper shell 1111 is provided with a recess 1111a matched with the flange 1112b and a clamping groove 1111b detachably connected with the buckle 1112c.

[0034] As preferred, the host computer 11 further comprises a battery 115, which is mounted in the shell 111 and electrically connected with the first circuit board 112. The battery 115 is used for powering the power-consuming components to realize the function of endurance.

[0035] As preferred, the host 11 further comprises a light source assembly 116 and a light guide 117, the light source assembly 116 is arranged inside the casing 111 and electrically connected with the first circuit board 112, one end of the light guide 117 is sleeved with the outer periphery of the light source of the light source assembly 116, and the other end extends to the casing 111 and is exposed. Therefore, the cooperation of the light source assembly 116 and the light guide 117 enables the light emitted by the light source to be guided out to the surface of the casing 111, thereby playing the role of light indication, reminding and enhancing the aesthetic appearance. The light source assembly 116 can be a combination structure of a commonly used LED light source and a circuit board on the market.

[0036] As preferred, the electrode 123 is a plurality of, and the plurality of electrodes 123 are sequentially and spacedly arranged along the length direction of the soft adhesive patch 121.

[0037] As preferred, the electrode 123 of the embodiment is five, and at least includes one reference electrode and one ground electrode.

[0038] As preferred, the first circuit board 112 of the embodiment is a PCB board, the second circuit board 122 is an FPC circuit board, and the soft adhesive patch 121 is a soft adhesive material, which is usually made of silica gel or TPU (thermoplastic polyurethane), can be attached to the human skin, and has good comfort. The soft adhesive patch 121 covers the FPC circuit board, and plays the role of collecting the brain electrical signals and transmitting them to the host 11.

[0039] As preferred, the electrode 123 is a silver chloride dry electrode 123.

[0040] The specific forming mode of the collecting part 12 of the embodiment is as follows: the first end of the electrode 123 and the first end of the second connector 124 are respectively welded on the two surfaces of the second circuit board 122, and then the whole is covered with a silica gel film together with the second magnetic attraction member 125 to form the soft adhesive patch 121. When the soft adhesive patch 121 is adsorbed in place with the first magnetic attraction member 114 of the collector 1 host 11, the second end of the second connector 124 is attached to the first end of the first connector 113, the corresponding contacts are in contact, the circuit is conducted, and the second end of the first connector 113 is welded on the first circuit board 112, and the first circuit board 112 is installed inside the casing 111.

[0041] As preferred, the casing 111 is provided with a switch button 118 electrically connected with the first circuit board 112. Therefore, the switch button 118 can realize the functions of on-off control and the like.

[0042] As preferred, the first circuit board 112 is integrated with a low-power Bluetooth module, and the processed data is transmitted in real time to a control terminal such as an upper computer or a smart phone.

[0043] As preferred, in order to realize the fixation of the collecting part 12, the portable brain wave collecting device of the embodiment further comprises a fitting part 3 matched with the soft gel sticker 121.

[0044] As further preferred, the fitting part 3 is a disposable gel sticker, which is a kind of attaching material discarded after use, used on the electrode 123 surface of the soft gel sticker 121 to ensure good contact and hygiene each time of use. Still further preferred, the fitting part 3 adopts a low-sensitization material to reduce the irritation to the skin.

[0045] As shown in Figures 11-18 The charging bin 2 of the embodiment comprises a bin body 21 and a third circuit board 24 arranged in the bin body 21, and the upper end surface of the bin body 21 is provided with a profiling groove 2110 matched with the collector 1, and the profiling groove 2110 is provided with a fourth connector 2111 matched with the third connector 119 and electrically connected with the third circuit board 24.

[0046] Further, the bin body 21 comprises an inner shell 211 and an outer shell 212, the profiling groove 2110 is arranged on the first end surface of the inner shell 211, the outer shell 212 is sleeved on the outer periphery of the inner shell 211 and a third accommodating cavity 210 is formed between the second end surface of the inner shell 211 and the outer shell 212, the third circuit board 24 is installed in the third accommodating cavity 210, the bottom of the outer shell 212 is provided with a second accommodating cavity 2120 for accommodating the fitting part 3, the fitting part 3 is used in cooperation with the collecting part 12 of the collector 1, and the fourth connector 2111 is electrically connected with the third circuit board 24.

[0047] As further preferred, the third connector 119 and the fourth connector 2111 are commonly used elastic contact connectors on the market.

[0048] As preferred, the bin body 21 further comprises a bottom cover 213, which is detachably installed on the bottom of the outer shell 212 and used to shield the second accommodating cavity 2120.

[0049] As preferred, the bottom edge of the outer shell 212 is provided with a cover taking groove 2121, and the edge of the bottom cover 213 is provided with a positioning protrusion 2132 matched with the cover taking groove 2121.

[0050] As further preferred, the cover taking groove 2121 is two.

[0051] As preferred, the bottom cover 213 is provided with a foot pad 2133.

[0052] As further preferred, the foot pad 2133 is four.

[0053] As preferred, the charging bin 2 further comprises a binding belt 25, which is installed on the outer shell 212 and matched with the fitting part 3, and used to fix the fitting part 3.

[0054] As a further preferred, the binding band 25 can be a magic tape binding band, by loosening the magic tape binding band 25, the fitting member 3 can be taken out.

[0055] As a preferred, the second positioning groove 2112 is arranged in the profiling groove 2110 and matched with the electrode 123. The number of the second positioning groove 2112 is same as the number of the electrode 123 and the positions are corresponding.

[0056] As a preferred, the avoiding hole 31 is arranged on the fitting member 3 and matched with the electrode 123, and the positioning column 2122 is arranged in the second accommodating cavity 2120 and matched with the avoiding hole 31. The number of the avoiding hole 31 is same as the number of the electrode 123 and the positions are corresponding. The number of the positioning column 2122 can be same as the number of the avoiding hole 31 or less than the number of the avoiding hole 31.

[0057] The outer size of the fitting member 3 is same as the soft gel sticker 121, the hole size of the avoiding hole 31 is same as the electrode 123 arranged on the soft gel sticker 121. When the fitting member 3 is pasted on the soft gel sticker 121, the avoiding hole 31 can expose the electrode 123, and the fitting member 3 plays a fixing role, which is convenient for the soft gel sticker 121 and the electrode 123 of the collector 1 to be pasted on the forehead of the user.

[0058] As a further preferred, the first mounting hole is arranged on the positioning column 2122, the third magnetic attraction member 2123 is embeddedly mounted in the first mounting hole, and the fourth magnetic attraction member 2131 is preferably a magnetic attraction sheet or a metal sheet. The positioning column 2122 integrates the magnetic attraction function, which not only saves the space but also enhances the functionality.

[0059] As a preferred, the charging bin 2 further comprises a bin cover 22, one end of the bin cover 22 is movably connected with the outer shell 212 through a movable connecting piece 23 and the other end can be away from or close to the inner shell 211, and when the bin cover 22 is closed, the profiling groove 2110 can be shielded. The movable connecting piece 23 is preferably a hinge type hinged piece with a spring.

[0060] As a preferred, the fifth magnetic attraction member 221 is arranged on the bin cover 22, and the inner shell 211 is provided with the sixth magnetic attraction member 214 matched with the fifth magnetic attraction member 221. The sixth magnetic attraction member 214 is arranged at the bottom of the inner shell 211 and located in the third accommodating cavity 210.

[0061] As a preferred, the outer shell 212 of the embodiment further comprises a second mounting hole 2126, a connecting hole 2124 and a USB interface 2125. The second mounting hole 2126 is used for mounting the binding band 25, the connecting hole 2124 is used for mounting a fastener such as a screw, thereby realizing the fixed connection of the outer shell 212 and the inner shell 211, the USB interface 2125 is electrically connected with the third circuit board 24 and used for realizing the charging function.

[0062] The operation steps of the electroencephalogram acquisition device of the present application are as follows (taking sleep monitoring as an example): S1, preparation: clean the forehead skin and keep it dry; take a piece of the fitting part 3 from the third accommodating cavity 210 of the charging bin 2, paste it on the side of the soft rubber pad 121 provided with the electrode 123, and make the head of the electrode 123 exposed; S2, fixing the acquisition part 12: tightly paste the side of the acquisition part 12 provided with the fitting part 3 on the forehead, and ensure that the electrode 123 fully contacts the skin; the side of the soft rubber pad 121 is naturally pasted on the contour of the forehead without the need of additional fixing device; S3, installing the main machine 11: align the first positioning groove 1112a on the main machine 11 with the first positioning protrusion 2132 of the acquisition part 12, gently paste the main machine 11 and the acquisition part 12, and the cooperation of the first magnetic attraction part 114 and the second magnetic attraction part 125 automatically adsorbs and completes the electrical contact connection of the first connector 113 and the second connector 124; S4, starting: long press the switch button 118 on the main machine 11, and the device indicator light (light guide part 117) flashes to indicate that the device has started and entered the standby state; ensure that the Bluetooth automatic pairing function is turned on, and search and connect the device through the upper computer or mobile phone application; S5, starting detection: enter the sleep monitoring interface of the upper computer (or mobile phone application), click “start monitoring”, and the device acquires and transmits the electroencephalogram data in real time through Bluetooth; S6, ending detection: after the sleep monitoring is completed, click “stop” in the application, and the collector 1 automatically saves the data and enters the sleep state; remove the fitting part 3 pasted on the soft rubber pad 121.

[0063] S7, charging operation: put the collector 1 back into the charging bin 2, and the profiled groove 2110 guides and the magnetic attraction design ensures automatic alignment, the spring contact connection of the third connector 119 and the fourth connector 2111 starts charging; S8, other matters: the third accommodating cavity 210 can store unused fitting parts 3. Replace the fitting part 3 after each use, and the surface of the soft rubber pad 121 and the main machine 11 can be lightly wiped with alcohol cotton for disinfection; regularly check the internal contact of the charging bin 2 and keep it clean.

[0064] As described above, the collector 1 and the electroencephalogram acquisition device using the same have at least the following beneficial effects: 1. The acquisition part 12 adopts the cooperation of the dry electrode 123 and the soft rubber pad 121 to realize the acquisition of the electroencephalogram signal of the forehead, the pressure on the head is small, and no conductive glue is needed, which eliminates the stimulation of the conductive glue on the skin and improves the wearing comfort; 2、The collection part 12 is detachably connected with the host 11, and is combined with accurate slot position and designed by magnetic attraction positioning, which not only ensures reliable adhesion of the electrode 123 to the skin, but also stabilizes the position of the host 11 after assembly, and has good signal stability; 3、The light source assembly 116 and the light guide 117 are arranged, the light prompting effect can be realized, the connection state can be checked in time, and the use requirement is met; 4、The collector 1 and the matched charging bin 2 jointly form the portable electroencephalogram collection device, the whole device has small volume, is convenient to use, is convenient to carry, and is convenient for home use and outdoor use; 5、The charging bin 2 of the electroencephalogram collection device has the functions of charging and storage, and the special structure of the charging bin 2 can realize “light adhesion for use, and put back for charging”, does not need accurate alignment, does not need complicated plugging and multi-step debugging, and significantly improves the operation convenience.

[0065] 6、The charging bin 2 not only has the functions of traditional charging and containing the collector 1, but also forms the second containing cavity 2120 for containing the adhesion part 3 matched with the collection part 12 between the outer shell 212 and the inner shell 211, the adhesion part 3 can be taken out and assembled on the soft rubber pad 121 of the collection part 12 by opening the bottom cover 213 during use, and the adhesion part 3 can be shielded by the bottom cover 213 during non-use, which not only has strong functions, is convenient to use, but also effectively saves space occupation, and realizes one bin with multiple uses.

[0066] 7、The inner shell 211 of the charging bin 2 is provided with a profiling groove 2110, which not only has the functions of storage and support, but also has the functions of guidance and limiting, and through cooperation of the third connector 119 and the fourth connector 2111, the function of automatic alignment of the collector 1 when the collector 1 is put in is realized; 8、The bottom cover 213 of the charging bin 2 adopts magnetic attraction positioning, is convenient to disassemble and assemble, the bin cover 22 adopts magnetic attraction cooperation, has the function of automatic cover closing, and is convenient to use.

[0067] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A portable electroencephalogram acquisition device, characterized by, The application relates to a collector (1) and a charging bin (2), the collector (1) comprising a main machine (11) and a collecting part (12) detachably matched with the main machine (11), the main machine (11) comprising a machine shell (111), a first circuit board (112), a first connector (113) and a third connector (119), the first circuit board (112) being installed inside the machine shell (111), the first connector (113) and the third connector (119) being installed at the bottom of the machine shell (111) and connected with the first circuit board (112), the collecting part (12) comprising a soft gel patch (121), a second circuit board (122), a second connector (124) and an electrode (123), the soft gel patch (121) being attached to the forehead of a user, the second circuit board (122) being installed inside the soft gel patch (121), the electrode (123) being installed at the bottom of the soft gel patch (121) and connected with the second circuit board (122), the second connector (124) being installed at the top of the soft gel patch (121) and electrically connected with the second circuit board (122), the second connector (124) being matched with the first connector (113), the charging bin (2) comprising a bin body (21) and a third circuit board (24) arranged in the bin body (21), the upper end surface of the bin body (21) being provided with a profiling groove (2110) matched with the collector (1), the profiling groove (2110) being provided with a fourth connector (2111) matched with the third connector (119) and electrically connected with the third circuit board (24).

2. The portable electroencephalogram acquisition device of claim 1, wherein, The bottom of the machine shell (111) is provided with a first positioning groove (1112a), the first connector (113) is installed in the first positioning groove (1112a), the second connector (124) is limitedly matched with the first positioning groove (1112a), and the first connector (113) and the second connector (124) are magnetically matched.

3. The portable electroencephalogram acquisition device of claim 2, wherein, The first connector (113) comprises a first mounting seat (1131), a first spring pin (1132) and a first magnet (1133), the second connector (124) comprises a second mounting seat (1241), a second spring pin (1242) and a second magnet (1243), the first mounting seat (1131) is installed on the first circuit board (112), the first spring pin (1132) is sleeved on the first mounting seat (1131) and is welded at a first end to the first circuit board (112), the second mounting seat (1241) is installed on the soft gel patch (121), the second spring pin (1242) is sleeved on the second mounting seat (1241) and is welded at a first end to the second circuit board (122), a second end of the first spring pin (1132) is elastically contacted with a second end of the second spring pin (1242), and the second circuit board (122) is a flexible circuit board.

4. The portable electroencephalogram acquisition device of claim 3, wherein, The machine shell (111) is arc-shaped as a whole, the machine shell (111) comprises a detachable upper shell (1111) and a lower shell (1112), a first accommodating cavity (1110) is formed between the upper shell (1111) and the lower shell (1112), the first circuit board (112) is installed in the first accommodating cavity (1110), the first positioning groove (1112a) is arranged in the lower shell (1112), and the upper end of the first connector (113) is welded to the first circuit board (112) and the lower end extends into the first positioning groove (1112a).

5. The portable electroencephalography acquisition device according to any one of claims 1-4, wherein, The bottom of the machine shell (111) is provided with a first magnetic attraction piece (114), and the soft rubber patch (121) is provided with a second magnetic attraction piece (125) matched with the first magnetic attraction piece (114).

6. The portable electroencephalography acquisition device according to any one of claims 1-4, wherein, The bottom of the profiling groove (2110) is provided with a second positioning groove (2112) matched with the electrode (123).

7. The portable electroencephalography acquisition device according to any one of claims 1-4, wherein, The main machine (11) further comprises a light source assembly (116) and a light guide piece (117), the light source assembly (116) is arranged inside the machine shell (111) and electrically connected with the first circuit board (112), one end of the light guide piece (117) is sleeved on the outer periphery of the light source of the light source assembly (116), and the other end extends to the machine shell (111) and is exposed.

8. The portable electroencephalography acquisition device according to any one of claims 1-4, wherein, Further comprising a fitting piece (3), the cartridge body (21) comprises an inner shell (211) and an outer shell (212), the profiling groove (2110) is arranged on the first end face of the inner shell (211), the outer shell (212) is sleeved on the outer periphery of the inner shell (211) and a third accommodating cavity (210) is formed between the second end face of the inner shell (211), the third circuit board (24) is installed in the third accommodating cavity (210), the bottom of the outer shell (212) is provided with a second accommodating cavity (2120) for accommodating the fitting piece (3), and the fitting piece (3) is matched with the soft rubber patch (121).

9. The portable electroencephalography acquisition device of claim 8, wherein, The fitting piece (3) is provided with a relief hole (31) matched with the electrode (123), the electrode (123) is a dry electrode (123), and the fitting piece (3) is a disposable low-sensitization rubber patch.

10. The portable electroencephalogram acquisition device of claim 9, wherein, The cartridge body (21) further comprises a bottom cover (213), the bottom cover (213) is detachably installed on the bottom of the outer shell (212) and used for shielding the second accommodating cavity (2120), the second accommodating cavity (2120) is provided with a positioning column (2122) matched with the fitting piece (3), the positioning column (2122) can penetrate the relief hole (31) of the fitting piece (3), the positioning column (2122) is provided with a third magnetic attraction piece (2123), and the bottom cover (213) is provided with a fourth magnetic attraction piece (2131) matched with the third magnetic attraction piece (2123).

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