Novel wearable dynamic electroencephalogram recorder

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a novel wearable dynamic electroencephalogram recorder which is wide in application scene and simple in host and electrode patch assembly, the novel wearable dynamic electroencephalogram recorder comprises a host and an electrode patch, the host comprises a shell, a control circuit board, heat dissipation silica gel and a battery, and a switch and a connecting pin are arranged at the bottom of the shell; the end face of one side of the shell is provided with a receding groove and an installation key which is arranged in the receding groove in a sliding mode and elastically connected with the shell. The electrode patch comprises a flexible patch body, a flexible circuit board and a base, a plurality of electrodes are distributed on the flexible circuit board, and an adhesive layer is arranged on the face, attached to the skin, of each electrode; the flexible patch is provided with a mounting hole, the base is arranged at the mounting hole and fixed on the flexible circuit board, the base is provided with a mounting groove for embedding the host, the bottom of the mounting groove is provided with connecting holes correspondingly connected with the contact pin and the electrode, and the inner side wall of the mounting groove is provided with a first clamping hole for inserting the mounting key.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a novel wearable dynamic electroencephalogram recorder. Background Art

[0002] An EEG recorder is a medical instrument that analyzes the health status of the human body and assists in diagnosing the patient's condition by collecting and recording EEG signals. It is usually fixed on the user's head by wearing a headband, and contacts the head through an electrode patch coated with conductive paste, and collects EEG signals based on the current changes of the electrode patch. The above-mentioned EEG recorder usually consists of a large host and a head-mounted electrode cap connected to the host by wire. The usage scenario is limited to hospitals and cannot be used outside the hospital. In addition, the traditional electrode patch is complicated to connect and assemble with the host. Due to the influence of the operating level, the connection between the electrode patch and the host is easy to loosen, which results in poor stability of the connection between the electrode patch and the host, affecting the normal use of the EEG recorder. Utility Model Content

[0003] Based on this, it is necessary to provide a new type of wearable dynamic EEG recorder that is adaptable to a wide range of scenarios and has simple assembly of the host and electrode stickers to address the above shortcomings.

[0004] A new type of wearable dynamic electroencephalogram recorder, comprising:

[0005] A host, the host comprising a shell and a control circuit board, heat dissipation silica gel and a battery contained in an inner cavity of the shell, a switch electrically connected to the control circuit board and a connection pin located beside the switch and electrically connected to the control circuit board are arranged at the bottom of the shell, the battery is located above the control circuit board and electrically connected to the control circuit board, and the heat dissipation silica gel is arranged between the control circuit board and the battery; a clearance groove is arranged on one end surface of the shell, and a mounting button elastically connected to the shell and capable of approaching or moving away from the inner cavity of the shell is slidably arranged in the clearance groove; and

[0006] An electrode patch, the electrode patch comprising a flexible patch for attaching to a human face, a flexible circuit board fixed to the back of the flexible patch, and a base located on the front side of the flexible patch, wherein a plurality of electrodes for fitting the human facial skin are distributed on the flexible circuit board, and an adhesive layer is provided on the side of the electrode that fits the skin; a mounting hole is provided on the flexible patch, which passes through the front and back of the flexible patch and corresponds to at least one of the electrodes; the base is provided at the mounting hole and fixed on the flexible circuit board; a mounting groove for embedding a host is provided on the base, the inner contour shape of the mounting groove is adapted to the outer contour shape of the housing, a connecting hole corresponding to the connecting pin and the electrode is provided at the bottom of the mounting groove, and a first card hole for inserting a mounting button is provided on the inner side wall of the mounting groove.

[0007] In one embodiment, the shell includes a bottom shell and a front shell covering the bottom shell and sealingly connected to the bottom shell, the bottom shell and the front shell form a receiving cavity, and the control circuit board, heat dissipation silica gel and battery are respectively arranged in the receiving cavity; a first socket for inserting a connecting pin and a second socket located next to the first socket and corresponding to the switch are opened at the bottom of the bottom shell, a protective pad for inserting the connecting pin is provided between the bottom shell and the control circuit board, and a protective cover covering the second socket and fixedly connected to the edge of the second socket is provided on the bottom surface of the bottom shell, and the switch is triggered when the protective cover is pressed.

[0008] In one of the embodiments, the bottom shell is snap-connected to the front shell, and a sealing ring is provided at the connection portion between the bottom shell and the front shell.

[0009] In one of the embodiments, a first U-shaped notch is formed on the lower surface of the bottom shell and passes through a side surface of the bottom shell and communicates with the inner cavity of the bottom shell, and a second U-shaped notch corresponding to the first U-shaped notch is formed on the upper surface of the face shell. The outer shell also includes end covers embedded in the first U-shaped notch and the second U-shaped notch and fixedly connected to the bottom shell and the face shell respectively. The cross-section of the end cover is a U-shaped structure, and the portion of the end cover located in the receiving cavity is clamped with the control circuit board, and the installation button is elastically connected to the end cover through a spring.

[0010] In one of the embodiments, the end cover includes two vertical parts arranged opposite to each other and a horizontal part connecting the two vertical parts, the horizontal part and the two vertical parts enclose a sliding installation area, the horizontal part is provided with a positioning groove and a first positioning column located in the positioning groove, and a guide strip is provided on a side of the vertical part located in the sliding installation area; a limiting tube is provided on the side of the installation button facing the sliding installation area, a second positioning column is provided in the limiting tube, the spring is accommodated in the limiting tube and is respectively sleeved on the first positioning column and the second positioning column; a guide groove for slidingly embedding the guide strip is provided on the outer side of the installation button, and a first clamping foot that can be inserted into the first clamping hole is provided on the side of the installation button facing away from the sliding installation area.

[0011] In one embodiment, the host also includes an LED and a wireless charging receiving coil housed in the inner cavity of the shell and electrically connected to the control circuit board. A display window is provided on the surface shell at the position corresponding to the LED. A light guide column is provided in the housing cavity between the LED and the display window. The wireless charging receiving coil is adhered to the inner surface of the surface shell.

[0012] In one of the embodiments, a limiting protrusion is provided on the housing at a position facing away from the installation button, and a second clamping hole for inserting the limiting protrusion is provided on the inner side wall of the installation groove.

[0013] In one embodiment, a first avoidance notch is formed on an inner side surface of the base and passes through the outer surface of the base, and a second avoidance notch is formed on the other inner side surface of the base and passes through the outer surface of the base, and a line connecting the first avoidance notch and the second avoidance notch is perpendicular to a line connecting the first clamping hole and the second clamping hole.

[0014] In one embodiment, the flexible patch includes a first fin that is relatively arranged and used to attach to one side of the human forehead, a second fin that is used to attach to the other side of the human forehead, and a connecting piece that connects the first fin and the second fin and is used to attach to the human nose. The first fin, the second fin and the connecting piece together enclose the mounting hole.

[0015] In one embodiment, the adhesive layer is 3M glue; and a needle-punched cotton layer is provided on the side of the flexible patch that contacts the skin.

[0016] The above-mentioned new wearable dynamic EEG recorder has a simple structure and a small size. It can collect human EEG signals by simply attaching a flexible patch to the user's face and embedding the powered-on host into the base on the flexible patch. It can be used not only in medical places such as hospitals, but also in non-hospital scenes, such as home scenes, which expands the applicable scenes of the EEG recorder. The host is fixed to the base of the electrode patch by a snap-on method. The snap-on is simple, and the connection between the electrode patch and the base is not easy to loosen, which improves the stability and reliability of the connection between the electrode patch and the host, and ensures the normal use of the EEG recorder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a novel wearable dynamic electroencephalogram recorder in one embodiment of the utility model;

[0018] Figure 2 This is a schematic structural diagram of a host from a perspective of an embodiment of the present utility model;

[0019] Figure 3 It is a structural schematic diagram of the host from another perspective in one embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the explosion structure of the host in one embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of an end cover in one embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of installing a button in one embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of an electrode sticker in one embodiment of the utility model;

[0024] Figure 8 It is a structural schematic diagram of an electrode sticker in one embodiment of the utility model after the base is removed from one viewing angle;

[0025] Fig. 9 It is a structural schematic diagram of another viewing angle after the base of the electrode sticker is removed in one embodiment of the utility model;

[0026] Fig.10 It is a structural schematic diagram of a base from one perspective in one embodiment of the utility model;

[0027] Fig.11 This is a structural schematic diagram of the base from another perspective in one embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] See also Figure 1 The utility model discloses a new wearable dynamic EEG recorder which is widely applicable, easy to wear, and has simple assembly of host and electrode patch. The EEG recorder is used to detect, process, display and store the electroencephalographic physiological signals of adults and children. It can be used to evaluate the functional state of the brain, analyze neurological and mental diseases, and monitor the sleep state at home. It can also be used to achieve the above functions in medical places (such as hospitals and clinics). The EEG recorder of this embodiment includes a host 100 and an electrode patch 200, wherein the electrode patch 200 is used to be attached to the face of a human body and used to collect human EEG signals, and the host 100 is used to process the collected human EEG signals to obtain human EEG data.

[0030] For details, please combine Figure 1-4 as well as Figure 7-11The host 100 includes a housing 110, a control circuit board 120, a heat dissipation silicone 130 and a battery 140 contained in the inner cavity of the housing 110. A switch 150 electrically connected to the control circuit board 120 and a connection pin 160 located beside the switch 150 and electrically connected to the control circuit board 120 are provided at the bottom of the housing 110. The battery 140 is located above the control circuit board 120 and electrically connected to the control circuit board 120. The heat dissipation silicone 130 is provided between the control circuit board 120 and the battery 140. In this embodiment, while the battery 140 is electrically connected to the control circuit board 120, the battery 140 is also fixed to the control circuit board 120 by a buckle to avoid the problem of power failure of the electroencephalogram recorder caused by the loosening of the battery 140. The control circuit board 120 is used to control the operation of the entire EEG recorder so as to process the collected bioelectric information to obtain human EEG data; the battery 140 is used to power the entire EEG recorder and provide a stable operating voltage for the EEG recorder; the heat dissipation silicone 130 separates the battery 140 and the control circuit board 120 on the one hand, and on the other hand, the heat dissipation silicone 130 absorbs the heat generated by the control circuit board 120 and the battery 140 during operation by contacting the control circuit board 120 and the battery 140 to avoid equipment failure caused by overheating of the control circuit board 120 and the battery 140; the switch 150 is used to start and stop the host 100, and the connecting pin 160 is used to provide an electrical connection point between the host 100 and the electrode patch 200. A avoidance groove 111 is provided on one side end face of the shell 110, and an installation button 112 is slidably provided in the avoidance groove 111. The installation button 112 is elastically connected to the shell 110 and can be moved closer to or away from the inner cavity of the shell 110. By providing the slidable installation button 112, a connection part is provided when the host 100 and the electrode patch 200 are snap-connected, so as to ensure the stability of the connection between the host 100 and the electrode patch 200.

[0031] The electrode patch 200 includes a flexible patch 210 for attaching to the human face, a flexible circuit board 220 fixed on the back of the flexible patch 210, and a base 230 located on the front side of the flexible patch 210, wherein the flexible patch 210 is used to provide a mounting portion for the flexible circuit board 220 and the base 230, so that the electrode patch 200 can be attached to the human face, so that the electrodes on the flexible circuit board 220 can collect human bioelectric signals; the base 230 is used to provide a mounting portion for the host 100. A plurality of electrodes 221 for fitting the human face skin are distributed on the flexible circuit board 220, so that the electrode patch 200 can contact multiple parts of the human face and collect human bioelectric signals, avoid detection errors caused by the concentration of collection points, and improve the reliability of data collection. An adhesive layer 222 is provided on the side of the electrode 221 that fits the skin, and the adhesive layer 222 is used to be attached to the surface of the human skin to achieve the attachment of the electrode patch 200 to the human face. Preferably, the adhesive layer 222 is 3M glue, which can meet biocompatibility and has good stickiness, and can prevent the electrode patch 200 from falling off from the human face during the EEG measurement process; in addition, when the electrode patch 200 of this embodiment is attached to the human face by 3M glue, the electrode patch 200 can be worn continuously for 24 hours without falling off, and can also be worn while sleeping, ensuring the continuous and normal development of the EEG measurement operation. The flexible patch 210 is provided with a mounting hole 211 that passes through the front and back of the flexible patch 210 and corresponds to at least one electrode 221, and the mounting hole 211 is used to provide a connection channel between the connecting pin 160 and the electrode 221. The base 230 is arranged at the mounting hole 211 and fixed on the flexible circuit board 220. In this embodiment, the base 230 is bonded to the flexible circuit board 220. The base 230 is provided with a mounting groove 231 for embedding the host 100, and the inner contour of the mounting groove 231 is adapted to the outer contour of the housing 110 to prevent the host 100 from shaking in the mounting groove 231. The bottom of the mounting groove 231 is provided with a connecting hole 232 corresponding to the connecting pin 160 and the electrode 221, and the inner side wall of the mounting groove 231 is provided with a first clamping hole 233 for inserting the mounting button 112.

[0032] When the electroencephalogram recorder is used, the electrode patch 200 is first attached to the human face through the adhesive layer 222 on the electrode 221, so that each electrode 221 on the flexible circuit board 220 corresponds to a different part of the human face. Then, the installation button 112 on the host 100 is pushed to retract the installation button 112 into the avoidance groove 111 of the housing 110, and the host 100 is placed in the installation groove 231 of the base 230. After the host 100 is placed in the installation groove 231, the installation button 112 is released, and the installation button 112 rebounds and is embedded in the first clamping hole 233 on the inner wall of the installation groove 231, thereby limiting the host 100 to prevent the host 100 from falling off the electrode patch 200. Similarly, when the host 100 needs to be removed, the installation button 112 is pressed to retract the installation button 112 into the avoidance groove 111 of the housing 110 , and the limit of the base 230 on the host 100 is released, and the host 100 can be removed from the installation groove 231 .

[0033] Please combine Figure 1-4 In one embodiment, the housing 110 includes a bottom shell 113 and a front shell 114 covering the bottom shell 113 and sealingly connected to the bottom shell 113. The bottom shell 113 and the front shell 114 form a receiving cavity, and the control circuit board 120, the heat dissipation silica gel 130 and the battery 140 are respectively arranged in the receiving cavity. The two opposite outer sides of the bottom shell 113 are provided with anti-slip stripes 1131 to facilitate the taking of the host 100 and avoid slipping; the surface of the front shell 114 is provided with a UV adhesive layer to improve the hardness and wear resistance of the front shell 114 to reduce the damage of the host 100 when it is scratched by the outside. Furthermore, the bottom shell 113 and the front shell 114 are snap-connected, and a sealing ring is provided at the connection position between the bottom shell 113 and the front shell 114. The sealing ring is made of rubber material to achieve sealing and waterproof protection of the components in the receiving cavity. Preferably, a plurality of claws 1141 are arranged at intervals on the edge of the lower opening of the face shell 114, and a plurality of engaging positions 1132 corresponding to the claws are arranged on the inner edge of the upper opening of the bottom shell 113, so that the face shell 114 and the bottom shell 113 can be snap-fitted. A first plug hole 1133 for inserting the connecting pin 160 and a second plug hole 1134 located beside the first plug hole 1133 and corresponding to the switch 150 are arranged at the bottom of the bottom shell 113, and a protective pad 1135 for inserting the connecting pin 160 is arranged between the bottom shell 113 and the control circuit board 120. The protective pad 1135 is made of soft material and is used to block the gap between the connecting pin 160 and the inner surface of the first plug hole 1133 to prevent external dust from entering the interior of the housing 110. In this embodiment, the host 100 includes 9 connecting pins 160 electrically connected to the control circuit board 120. The 9 connecting pins 160 are arranged in an array and welded on the control circuit board 120 and extend from the bottom of the shell 110 so as to contact the contacts of the electrodes 221 on the flexible circuit board 220 and transmit signals.

[0034] The bottom surface of the bottom shell 113 is provided with a protective cover 1136 covering the second jack 1134 and fixedly connected to the edge of the second jack 1134. The protective cover 1136 triggers the switch 150 when pressed. In this embodiment, the protective cover 1136 is a silicone cover, which is bonded to the edge of the second jack 1134 to prevent dust from entering the inner cavity of the shell 110. In addition, the switch 150 is set at the bottom of the shell 110 and the protective cover 1136 is used to protect the switch 150. When the host 100 is installed on the base 230 of the electrode patch 200, the switch 150 is shielded by the base 230 and the shell 110, which can avoid the occurrence of shutdown problems due to misoperation and improve the reliability of the use of the electroencephalogram recorder.

[0035] Please further combine Figure 1-6 In one embodiment, the bottom surface of the bottom shell 113 is provided with a first U-shaped notch 1137 penetrating through a side surface of the bottom shell 113 and communicating with the inner cavity of the bottom shell 113, and the upper surface of the front shell 114 is provided with a second U-shaped notch 1142 corresponding to the first U-shaped notch 1137. The housing 110 further includes an end cover 170 embedded in the first U-shaped notch 1137 and the second U-shaped notch 1142 and fixedly connected to the bottom shell 113 and the front shell 114 respectively. The end cover 170 is used to block the first U-shaped notch 1137 of the bottom shell 113 and the second U-shaped notch 1142 of the front shell 114, so that the interior of the housing 110 is separated from the external environment, and a position avoidance groove 111 is formed on one side of the housing 110. The cross section of the end cover 170 is a U-shaped structure, and the portion of the end cover 170 located in the receiving cavity is engaged with the control circuit board 120 to realize the positioning of the control circuit board 120; the installation button 112 is elastically connected to the end cover 170 through a spring 1121.

[0036] Furthermore, the end cover 170 includes two vertical parts 171 arranged opposite to each other and a horizontal part 172 connecting the two vertical parts 171, the horizontal part 172 and the two vertical parts 171 form a sliding installation area (i.e., a avoidance groove), a positioning groove 173 and a first positioning column 174 located in the positioning groove 173 are provided on the horizontal part 172, and a guide strip 175 is provided on one side of the vertical part 171 located in the sliding installation area; a limiting tube 1122 is provided on the side of the installation button 112 facing the sliding installation area, a second positioning column 1123 is provided in the limiting tube 1122, and a spring 1121 is accommodated in the limiting tube 1122 and is respectively sleeved on the first positioning column 174 and the second positioning column 1123; a guide groove 1124 for slidingly embedding the guide strip 175 is provided on the outer side surface of the installation button 112, and a first clamping foot 1125 that can be inserted into the first clamping hole 233 is provided on the side of the installation button 112 facing away from the sliding installation area. Preferably, two positioning grooves 173 are arranged at intervals on the horizontal portion 172, and a first positioning column 174 is arranged in each positioning groove 173. Correspondingly, two limiting tubes 1122 are arranged at intervals on the installation button 112, and a second positioning column 1123 is arranged in each limiting tube 1122. In this way, the installation button 112 is elastically connected to the end cover 170 through two springs 1121, which ensures the parallelism and smoothness of the sliding process of the installation button 112. By arranging the guide strip 175 on the vertical portion 171 and the guide groove 1124 on the outer surface of the installation button 112, the sliding path of the installation button 112 is limited, which can ensure that the installation button 112 is pressed smoothly and will not get stuck. Two first clamping feet 1125 are arranged at intervals on the installation button 112, and correspondingly, two first clamping holes 233 are opened at intervals on the inner wall of the installation groove 231 to increase the limiting area of ​​the host 100 and the base 230. In addition, a UV adhesive layer is further provided on the outer surface of the installation button 112 to improve the wear resistance of the installation button 112 and extend the service life of the installation button 112 .

[0037] In order to further improve the stability of the installation of the host 100 on the electrode patch 200, in one embodiment, a limiting protrusion 180 is provided on the housing 110 at a position facing away from the installation button 112, and a second clamping hole 234 for inserting the limiting protrusion 180 is provided on the inner side wall of the installation groove 231. Preferably, the cross section of the limiting protrusion 180 is a conical structure, and the inner surface of the installation groove 231 is provided with an inclined guide surface or an arc-shaped guide surface at the edge of the second clamping hole 234 to reduce the difficulty of the limiting protrusion 180 being clamped into the second clamping hole 234. When installing the host 100, first push the installation button 112 into the avoidance groove 111, and insert the limiting protrusion 180 on the host 100 into the second clamping hole 234. After the bottom surface of the host 100 is fitted with the inner bottom surface of the installation groove 231, release the installation button 112, and the installation button 112 slides into the first clamping hole 233 under the push of the spring 1121. In this way, through the mutual constraint between the installation button 112 and the first clamping hole 233 and the mutual constraint between the limiting protrusion 180 and the second clamping hole 234, the limiting area of ​​the host 100 and the base 230 is increased, thereby improving the installation stability of the host 100 and the base 230.

[0038] It should be noted that, in one embodiment, a needle-punched cotton layer is provided on the side of the flexible patch 210 that contacts the skin. When the electrode patch 200 is pasted, the needle-punched cotton on the needle-punched cotton layer can pierce the stratum corneum of the human skin, eliminating the process of polishing the skin with gauze, thereby reducing the difficulty of installing the electrode patch 200 and the difficulty of wearing the electroencephalogram recorder. At the same time, combined with the adhesion of the adhesive layer 222 to the skin, the stability of the electrode patch 200 in fitting to the human face is ensured.

[0039] In one embodiment, the host 100 further includes an LED 121 and a wireless charging receiving coil 122 which are accommodated in the inner cavity of the housing 110 and electrically connected to the control circuit board 120. A display window 1143 is provided on the face shell 114 at a position corresponding to the LED 121. A transparent protective plate is provided at the display window 1143. A light guide column 101 is provided between the LED 121 and the display window 1143 in the accommodation cavity. The wireless charging receiving coil 122 is attached to the inner surface of the face shell 114. In this embodiment, by providing the LED 121 and the light guide column 101, the working state of the host 100 can be judged by the different colors displayed by the LED 121 at the display window 1143. For example, when the host 100 is turned on, the LED 121 displays blue. When the host 100 is successfully connected to an external device, the LED 121 displays green. When a device fails, the LED 121 displays red, so as to respond to the device failure in a timely manner. In addition, in this embodiment, the inner cavity of the housing 110 is further provided with a first foam 102 surrounding the LED 121, a second foam 103 disposed above the connection terminal between the battery 140 and the control circuit board 120, and a third foam 104 located beside the light guide column 101 and abutting against the inner wall of the housing 110. The first foam 102 and the third foam 104 are both light shielding foams. A through hole is provided on the first foam 102, which is used to limit the light path of the LED 121 to prevent the light of the LED 121 from diffusing around; the third foam 104 is used to block the gap at the connection between the bottom shell 113 and the front shell 114 to avoid light leakage at the connection gap and light leakage caused by the thin thickness of the front shell 114. The second foam 103 is used to pre-press the connection terminal between the battery 140 and the control circuit board 120 to prevent the battery 140 and the control circuit board 120 from being disconnected due to the fall of the host 100, and to ensure the stability of the connection between the battery 140 and the control circuit board 120. By providing a wireless charging receiving coil 122 and pasting the wireless charging receiving coil 122 on the inner surface of the housing 114, it is convenient for the host 100 to cooperate with a wireless charging device provided with a transmitting coil, so as to wirelessly charge the host 100. Preferably, the wireless charging receiving coil 122 is pasted on the inner surface of the housing 114 by double-sided adhesive 126. In other embodiments, a charging interface electrically connected to the control circuit board 120 may also be provided on the side of the housing 110 of the host 100, so as to charge the battery 140 through a connecting line.

[0040] In this embodiment, the control circuit board 120 is provided with an acquisition circuit, an amplification circuit, a filtering circuit and a main control circuit. The acquisition circuit includes an EEG sensor electrically connected to the flexible circuit board 220, the amplification circuit includes a bioelectric amplifier, and the filtering circuit includes at least one capacitor. When the electrode 221 of the flexible circuit board 220 contacts the human skin, the EEG sensor detects the bioelectric signal of the human head. After the bioelectric amplifier amplifies the signal, the filtering circuit filters and removes impurities from the amplified signal, and then the main control circuit processes, analyzes and records the signal, and finally displays, records and transmits it according to the analysis results. It should be noted that in this embodiment, a communication module electrically connected to the main control circuit can also be provided on the control circuit board 120. The communication module can be a Bluetooth module so that the host 100 can be connected to the mobile phone APP. In this way, the user can view the relevant EEG data through the mobile phone APP to grasp the health status in time.

[0041] The base 230 is made of a transparent material, for example, the base 230 is made of a PC material, so that it is possible to observe whether the host 100 is properly connected to the base 230. In order to reduce the difficulty of taking the host 100 from the base 230, in one embodiment, a first avoidance notch 235 penetrating the outer surface of the base 230 is provided on an inner side surface of the base 230, and a second avoidance notch 236 penetrating the outer surface of the base 230 is provided on another inner side surface of the base 230, and the line connecting the first avoidance notch 235 and the second avoidance notch 236 is perpendicular to the line connecting the first clamping hole 233 and the second clamping hole 234. In this embodiment, when the host 100 needs to be taken out, the user only needs to use two fingers to grab the host 100 at the first avoidance notch 235 and the second avoidance notch 236 respectively, and after pressing the installation button 112 to avoid the avoidance groove 111, lift the side of the host 100 adjacent to the first clamping hole 233, and withdraw the limiting protrusion 180 from the second clamping hole 234, and then the host 100 can be removed from the base 230, which reduces the difficulty of disassembling the host 100. In addition, a plurality of weight-reducing holes 237 are also provided at the bottom of the base 230 to reduce the overall weight of the electrode patch 200 and avoid the problem of the electrode patch 200 falling off from the surface of human skin due to the excessive weight of the electrode patch 200.

[0042] In one embodiment, the flexible patch 210 includes a first fin 212 that is relatively arranged and used to be attached to one side of the human forehead, a second fin 213 that is used to be attached to the other side of the human forehead, and a connecting piece 214 that connects the first fin 212 and the second fin 213 and is used to be attached to the human nose. The first fin 212, the second fin 213 and the connecting piece 214 are enclosed together to form a mounting hole 211. In this way, the entire electroencephalogram recorder can be attached to the forehead of the human body and collect bioelectric signals from multiple parts of the forehead to improve the credibility of data collection. The part of the flexible circuit board 220 that connects the adjacent electrodes 221 can be either a straight structure or an arc structure. In this way, by adjusting the shape of the arc structure on the flexible circuit board 220, the different installation lengths of the flexible circuit board 220 on the flexible patch 210 can be met, thereby realizing the detection of electroencephalogram signals in different areas and ranges of the head.

[0043] The above-mentioned new wearable dynamic EEG recorder has a simple structure and a small size. It only needs to attach the flexible patch 210 to the user's face and embed the powered-on host 100 into the base 230 on the flexible patch 210 to collect human EEG signals. It can be used not only in medical places such as hospitals, but also in non-hospital scenes, such as home scenes, which expands the applicable scenes of the EEG recorder; the host 100 is fixed to the base 230 of the electrode patch 200 by snapping, and the snapping is simple. The connection between the electrode patch 200 and the base 230 is not easy to loosen, which improves the stability and reliability of the connection between the electrode patch 200 and the host 100, and ensures the normal use of the EEG recorder.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of wearable dynamic electroencephalogram recorder, characterized in that: include: A host, the host comprising a shell and a control circuit board, heat dissipation silica gel and a battery contained in an inner cavity of the shell, a switch electrically connected to the control circuit board and a connection pin located beside the switch and electrically connected to the control circuit board are arranged at the bottom of the shell, the battery is located above the control circuit board and electrically connected to the control circuit board, and the heat dissipation silica gel is arranged between the control circuit board and the battery; a clearance groove is arranged on one end surface of the shell, and a mounting button elastically connected to the shell and capable of approaching or moving away from the inner cavity of the shell is slidably arranged in the clearance groove; and An electrode patch, the electrode patch comprising a flexible patch for attaching to a human face, a flexible circuit board fixed to the back of the flexible patch, and a base located on the front side of the flexible patch, wherein a plurality of electrodes for fitting the human facial skin are distributed on the flexible circuit board, and an adhesive layer is provided on the side of the electrode that fits the skin; a mounting hole is provided on the flexible patch, which passes through the front and back of the flexible patch and corresponds to at least one of the electrodes; the base is provided at the mounting hole and fixed on the flexible circuit board; a mounting groove for embedding a host is provided on the base, the inner contour shape of the mounting groove is adapted to the outer contour shape of the housing, a connecting hole corresponding to the connecting pin and the electrode is provided at the bottom of the mounting groove, and a first card hole for inserting a mounting button is provided on the inner side wall of the mounting groove.

2. The wearable dynamic electroencephalogram recorder according to claim 1, characterized in that: The shell includes a bottom shell and a front shell covering the bottom shell and sealingly connected to the bottom shell, the bottom shell and the front shell form a receiving cavity, and the control circuit board, heat dissipating silica gel and the battery are respectively arranged in the receiving cavity; the bottom of the bottom shell is provided with a first socket for inserting a connecting pin and a second socket located beside the first socket and corresponding to the switch, a protective pad for inserting the connecting pin is provided between the bottom shell and the control circuit board, and the bottom surface of the bottom shell is provided with a protective cover covering the second socket and fixedly connected to the edge of the second socket, and the protective cover triggers the switch when pressed.

3. The wearable dynamic electroencephalogram recorder according to claim 2, characterized in that: The bottom shell is snap-connected to the front shell, and a sealing ring is provided at the connection position between the bottom shell and the front shell.

4. The wearable dynamic electroencephalogram recorder according to claim 2, characterized in that: A first U-shaped notch is provided on the lower surface of the bottom shell, which passes through one side of the bottom shell and is connected to the inner cavity of the bottom shell. A second U-shaped notch corresponding to the first U-shaped notch is provided on the upper surface of the face shell. The outer shell also includes end covers embedded in the first U-shaped notch and the second U-shaped notch and fixedly connected to the bottom shell and the face shell respectively. The cross-section of the end cover is a U-shaped structure, and the portion of the end cover located in the accommodating cavity is clamped with the control circuit board. The installation button is elastically connected to the end cover by a spring.

5. The wearable dynamic electroencephalogram recorder according to claim 4, characterized in that: The end cover includes two vertical parts arranged opposite to each other and a horizontal part connecting the two vertical parts, the horizontal part and the two vertical parts enclose a sliding installation area, the horizontal part is provided with a positioning groove and a first positioning column located in the positioning groove, and a guide strip is provided on a side of the vertical part located in the sliding installation area; a limiting tube is provided on the side of the installation button facing the sliding installation area, a second positioning column is provided in the limiting tube, the spring is accommodated in the limiting tube and is respectively sleeved on the first positioning column and the second positioning column; a guiding groove for slidingly embedding the guide strip is provided on the outer side of the installation button, and a first clamping foot that can be inserted into the first clamping hole is provided on the side of the installation button facing away from the sliding installation area.

6. The wearable dynamic electroencephalogram recorder according to claim 2, characterized in that: The host also includes an LED and a wireless charging receiving coil housed in the inner cavity of the shell and electrically connected to the control circuit board. A display window is provided on the surface shell at the position corresponding to the LED, and a light guide column is provided in the housing cavity between the LED and the display window. The wireless charging receiving coil is adhered to the inner surface of the surface shell.

7. The wearable dynamic electroencephalogram recorder according to claim 1, characterized in that: A limiting protrusion is provided on the housing at a position facing away from the installation button, and a second clamping hole for inserting the limiting protrusion is provided on the inner side wall of the installation groove.

8. The wearable dynamic electroencephalogram recorder according to claim 7, characterized in that: A first avoidance notch penetrating through the outer surface of the base is formed on one inner side surface of the base, and a second avoidance notch penetrating through the outer surface of the base is formed on the other inner side surface of the base, and the line connecting the first avoidance notch and the second avoidance notch is perpendicular to the line connecting the first clamping hole and the second clamping hole.

9. The wearable dynamic electroencephalogram recorder according to claim 1, characterized in that: The flexible patch includes a first fin that is arranged opposite to each other and is used to adhere to one side of the human forehead, a second fin that is used to adhere to the other side of the human forehead, and a connecting piece that connects the first fin and the second fin and is used to adhere to the human nose. The first fin, the second fin and the connecting piece together enclose the mounting hole.

10. The wearable dynamic electroencephalogram recorder according to claim 1, characterized in that: The adhesive layer is 3M adhesive; and a needle-punched cotton layer is provided on the side of the flexible patch that contacts the skin.

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