Brain electrode fixing device and brain electrode device

Abstract

The present application relates to the field of implant technology, and in particular to a brain electrode fixing device and a brain electrode device; the brain electrode fixing device comprises a first fixing bracket and a second fixing bracket, and the first fixing bracket and the second fixing bracket are arranged at intervals; the first fixing bracket comprises a first skull fixing structure and a circuit board fixing structure, the first skull fixing structure is fixedly connected to the circuit board fixing structure, and the data processing circuit board is detachably connected to the circuit board fixing structure; the second fixing bracket comprises a second skull fixing structure and an electrode fixing structure, and the second skull fixing structure is connected to the electrode fixing structure; the brain electrode comprises an electrode plate, one end of the electrode plate is fixedly connected to the electrode fixing structure, and the other end of the electrode plate is detachably connected to the data processing circuit board; by providing a brain electrode fixing device that is easy to replace easily failed parts, damage to the implanted object and the later maintenance cost of the brain electrode device are reduced.

Description

Technical Field

[0001] The present application relates to the field of implant technology, and in particular to a brain electrode fixing device and a brain electrode device. Background Art

[0002] After the brain electrodes are implanted in the brain, the electrode parts exposed outside the skull and the circuit board need to be supported and fixed. However, in the existing technology, this is usually a one-time fixation method. Once any part of the brain electrode device is damaged, it needs to be replaced as a whole or directly scrapped. However, the circuit board is more susceptible to damage than the brain electrodes. If the circuit board is damaged, it is still replaced as a whole or directly scrapped, which will cause certain damage to the implanted object. At the same time, the replacement of the entire device will also make the maintenance cost of the brain electrode implant higher. Summary of the Invention

[0003] In response to the above-mentioned problems in the prior art, the purpose of this application is to provide a brain electrode fixing device that is easy to replace the parts that are prone to failure, so as to reduce damage to the implanted object and reduce the subsequent maintenance costs of the brain electrode device.

[0004] In order to solve the above problems, the present application provides a brain electrode fixing device, comprising a first fixing bracket and a second fixing bracket, wherein the first fixing bracket and the second fixing bracket are spaced apart;

[0005] The first fixing bracket includes a first skull fixing structure and a circuit board fixing structure, the first skull fixing structure is fixedly connected to the circuit board fixing structure, and the data processing circuit board is detachably connected to the circuit board fixing structure;

[0006] The second fixing bracket includes a second skull fixing structure and an electrode fixing structure, and the second skull fixing structure is connected to the electrode fixing structure;

[0007] The brain electrode comprises an electrode plate, one end of which is fixedly connected to the electrode fixing structure, and the other end of which is detachably connected to the data processing circuit board.

[0008] In an embodiment of the present application, the circuit board fixing structure includes a sliding groove, and the data processing circuit board is detachably connected to the circuit board fixing structure through the sliding groove.

[0009] In an embodiment of the present application, the first fixing bracket further includes a side wing limiting structure, which is arranged on both sides of the circuit board fixing structure, and the side wing limiting structure is detachably connected to the circuit board fixing structure.

[0010] In an embodiment of the present application, the first fixing bracket further includes a top limiting structure, which is arranged at an end away from the first skull fixing structure, and the top limiting structure is detachably connected to the side wing limiting structure.

[0011] On the other hand, the present application also provides a brain electrode device, including the brain electrode fixing device, the data processing circuit board and the brain electrode in the embodiment of the present application;

[0012] The brain electrode fixing device is detachably connected to the data processing circuit board, and the brain electrode fixing device is fixedly connected to the brain electrode;

[0013] The data processing circuit board is detachably connected to the brain electrode.

[0014] In an embodiment of the present application, the EEG electrode includes an electrode wire, an electrode plate, and a connection interface, and the EEG electrode is detachably connected to the data processing circuit board via the connection interface;

[0015] The electrode wire is in contact with the cranial nerve;

[0016] The electrode wire is arranged at the input end of the electrode plate, and the connection interface is arranged at the output end of the electrode plate.

[0017] In an embodiment of the present application, the data processing circuit board includes a signal processing module and a data transfer module, and the input end of the signal processing module is communicatively connected to the brain electrode;

[0018] The input end of the data transfer module is communicatively connected to the output end of the signal processing module;

[0019] The output end of the data transfer module is communicatively connected to the analysis and display device.

[0020] In an embodiment of the present application, a sealed shell is further included, one end of which is fixedly connected to the skull, and the sealed shell and the skull form a closed space;

[0021] The first fixing bracket, the second fixing bracket, the data processing circuit board and the brain electrode are arranged in the enclosed space.

[0022] In an embodiment of the present application, the sealed housing includes a fixed base and a detachable housing, and the fixed base is detachably connected to the detachable housing.

[0023] In the embodiment of the present application, the sealed housing includes a bottom detachable housing, a middle detachable housing, and a top detachable housing;

[0024] The height of the housing formed by the fixing base, the bottom detachable housing, and the middle detachable housing is greater than the maximum height of the brain electrode fixing device;

[0025] The height of the shell formed by the fixing base and the bottom detachable shell is less than or equal to the maximum height of the brain electrode fixing device.

[0026] Due to the above technical solution, the brain electrode fixation device described in this application has the following beneficial effects:

[0027] By setting a first fixing bracket and a second fixing bracket, the first fixing bracket includes a circuit board fixing structure detachably connected to the data processing circuit board, and the second fixing bracket includes an electrode fixing structure fixedly connected to one end of the electrode plate, and the other end of the electrode plate is detachably connected to the data processing circuit board; when the brain electrodes are fixed, the data processing circuit board, which is more likely to fail than the brain electrodes, is replaced separately, thereby increasing the service life of the brain electrode device, avoiding the overall replacement of the brain electrode device, and reducing damage to the implanted object and reducing the subsequent maintenance cost of the brain electrode device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solution of this application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0029] Figure 1 This is a schematic diagram of the assembly structure of a brain electrode fixing device provided in an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the exploded structure of a brain electrode fixation device provided in an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the structure of an application scenario of a brain electrode fixation device provided in an embodiment of the present application;

[0032] Figure 4 This is a schematic structural diagram of a housing in a brain electrode device provided in an embodiment of the present application;

[0033] Figure 5 This is a schematic diagram of the application scenario structure of a brain electrode device provided in an embodiment of the present application.

[0034] Among them, 1-first fixed bracket, 11-first skull fixing structure, 12-circuit board fixing structure, 13-side limiting structure, 14-top limiting structure, 2-second fixed bracket, 21-second skull fixing structure, 22-electrode fixing structure, 3-data processing circuit board, 31-data transfer module, 4-brain electrode, 41-electrode plate, 42-electrode wire, 5-sealed shell, 51-fixed base, 52-detachable shell, 521-bottom detachable shell, 522-middle detachable shell, 523-top detachable shell. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] References to "one embodiment" or "embodiment" herein refer to specific features, structures, or characteristics that may be included in at least one implementation of the present application. Throughout the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of the features. Furthermore, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that such terms are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0037] Combine Figure 1-2, introducing a brain electrode fixing device provided by an embodiment of the present application, the device includes a first fixing bracket 1 and a second fixing bracket 2, and the first fixing bracket 1 and the second fixing bracket 2 are arranged at intervals; the first fixing bracket 1 includes a first skull fixing structure 11 and a circuit board fixing structure 12, the first skull fixing structure 11 is fixedly connected to the circuit board fixing structure 12, and the data processing circuit board 3 is detachably connected to the circuit board fixing structure 12; the second fixing bracket 2 includes a second skull fixing structure 21 and an electrode fixing structure 22, and the second skull fixing structure 21 is connected to the electrode fixing structure 22; the brain electrode 4 includes an electrode plate 41, one end of the electrode plate 41 is fixedly connected to the electrode fixing structure 22, and the other end of the electrode plate 41 is detachably connected to the data processing circuit board 3.

[0038] In an embodiment of the present application, the first skull fixing structure 11 is used to be fixedly connected to the skull of the implanted object; the implanted object includes the skull of any animal; specifically, the first skull fixing structure 11 can be fixed to the skull of the implanted object by a fixing member; the second skull fixing structure 21 is used to be fixedly connected to the skull of the implanted object; the second skull fixing structure 21 can be fixed to the skull of the implanted object by a fixing member; the fixing member includes but is not limited to screws, pins, and bolts.

[0039] In the embodiment of the present application, the circuit board fixing structure 12 is used to be detachably connected to the data processing circuit board 3, and the electrode fixing structure 22 is used to fix the brain electrode 4 so that the brain electrode 4 is stationary relative to the brain of the implanted object; the brain electrode 4 is used to collect brain nerve signals of the implanted object, and to transmit the collected brain nerve signals to the data processing circuit board 3; the data processing circuit board 3 is used to receive brain nerve signals, pre-process the brain nerve signals, and transmit the pre-processed brain nerve signals to the analysis and display device.

[0040] In a specific embodiment of the present application, preprocessing of brain nerve signals includes but is not limited to filtering and denoising, signal amplification, analog-to-digital conversion, data compression and other data processing processes; analysis and display devices include but are not limited to computer terminals, tablet terminals and mobile phone terminals.

[0041] In a specific embodiment of the present application, the electrode plate 41 is a flexible electrode plate 41 , thereby improving the installation flexibility of the brain electrode 4 .

[0042] In a specific embodiment of the present application, the first skull fixation structure 11 and the second skull fixation structure 21 are both made of biocompatible materials, specifically, titanium alloy materials.

[0043] In the specific embodiment of the present application, the second skull fixing structure 21 and the second fixing bracket 2 are integrally formed; therefore, the material of the second skull fixing structure 21 is titanium alloy.

[0044] In a specific embodiment of the present application, the circuit board fixing structure 12 can be made of aluminum alloy, thereby reducing the weight of the brain electrode fixing device and improving the comfort of the brain electrode device.

[0045] In an embodiment of the present application, a first fixing bracket 1 and a second fixing bracket 2 are provided, the first fixing bracket 1 includes a circuit board fixing structure 12 detachably connected to the data processing circuit board 3, and the second fixing bracket 2 includes an electrode fixing structure 22 fixedly connected to one end of the electrode plate 41, and the other end of the electrode plate 41 is detachably connected to the data processing circuit board 3; when the brain electrode 4 is fixed, the data processing circuit board 3, which is more likely to fail than the brain electrode 4, is replaced separately, thereby increasing the service life of the brain electrode device, avoiding the overall replacement of the brain electrode device, and reducing damage to the implanted object and reducing the subsequent maintenance cost of the brain electrode device.

[0046] In the embodiment of the present application, a fixing groove is provided on the electrode fixing structure 22, and the size of the electrode plate 41 matches the accommodating space formed by the fixing groove; the electrode fixing structure 22 and the electrode plate 41 can be fixedly connected by glue or by screws or the like.

[0047] In the embodiment of the present application, the circuit board fixing structure 12 includes a sliding groove, and the data processing circuit board 3 is detachably connected to the circuit board fixing structure 12 through the sliding groove.

[0048] In the embodiment of the present application, by providing a detachable connection between the data processing circuit board 3 and the circuit board fixing structure 12, the structural complexity of the first fixing bracket 1 is reduced, and the stability between the first fixing bracket 1 and the data processing circuit board 3 is improved.

[0049] In a specific embodiment of the present application, both sides of the data processing circuit board 3 are slidably connected to the sliding grooves, and the common structure of the data processing circuit board 3 is utilized to structurally set the first fixing bracket 1, thereby improving the adaptability between the first fixing bracket 1 and the data processing circuit board 3, and enabling the detachable installation of circuit boards with different functions.

[0050] In the embodiment of the present application, the first fixing bracket 1 further includes a wing limiting structure 13 , which is disposed on both sides of the circuit board fixing structure 12 , and the wing limiting structure 13 is detachably connected to the circuit board fixing structure 12 .

[0051] In the embodiment of the present application, the wing limiting structure 13 is used to limit the edge of the data processing circuit board 3; the wing limiting structure 13 and the circuit board fixing structure 12 can be fixedly connected by screws, pins or bolts.

[0052] In the embodiment of the present application, by setting the side limiting structure 13, the edge of the data processing circuit board 3 is limited, the structural stability of the data processing circuit board 3 when fixed is improved, and the stability of the brain electrode device is improved, thereby improving the reliability of the brain electrode device.

[0053] In a specific embodiment of the present application, the side wing limiting structure 13 can be made of aluminum alloy, thereby reducing the weight of the brain electrode fixing device and improving the comfort of the brain electrode device.

[0054] In the embodiment of the present application, the first fixing bracket 1 further includes a top limiting structure 14 , which is arranged at one end away from the first skull fixing structure 11 , and the top limiting structure 14 is detachably connected to the side wing limiting structure 13 .

[0055] In the embodiment of the present application, the top limiting structure 14 is used to limit the top position of the data processing circuit board 3; the top limiting structure 14 and the side limiting structure 13 can be fixedly connected by screws, pins or bolts.

[0056] In the embodiment of the present application, a top limiting structure 14 is provided to limit the top of the data processing circuit board 3, thereby improving the structural stability of the data processing circuit board 3 when fixed, thereby improving the stability of the brain electrode device and improving the reliability of the brain electrode device.

[0057] In a specific embodiment of the present application, the top limiting structure 14 can be made of aluminum alloy, thereby reducing the weight of the brain electrode fixing device and improving the comfort of the brain electrode device.

[0058] refer to Figure 3 The working principle of the brain electrode fixing device in the embodiment of the present application is described below:

[0059] Insert one end of the electrode plate 41 of the brain electrode 4 into the second fixed bracket 2, and fix the electrode plate 41 to the second fixed bracket 2; slide the data processing circuit board 3 into the circuit board fixed structure 12 through the sliding groove; use the side wing limiting structure 13 and the top limiting structure 14 to limit the circuit board in the circuit board fixed structure 12; specifically, first fix the side wing limiting structure 13 to the circuit board fixed structure 12, and then fix the top limiting structure 14 to the side wing limiting structure 13.

[0060] Use an external device to hold the second fixing bracket 2 and implant the input end of the brain electrode 4 into the brain of the implanted subject; fix the first fixing bracket 1 to the skull through the first skull fixing structure 11, and fix the second fixing bracket 2 to the skull through the second fixing structure; finally, fix the other end of the electrode plate 41 to the data processing circuit board 3.

[0061] The brain electrode fixing device in the embodiment of the present application has the following beneficial effects:

[0062] By setting a first fixing bracket 1 and a second fixing bracket 2, the first fixing bracket 1 includes a circuit board fixing structure 12 that is detachably connected to the data processing circuit board 3, and the second fixing bracket 2 includes an electrode fixing structure 22 that is fixedly connected to one end of the electrode plate 41, and the other end of the electrode plate 41 is detachably connected to the data processing circuit board 3; when the brain electrode 4 is fixed, the data processing circuit board 3, which is more likely to fail than the brain electrode 4, is replaced separately, thereby increasing the service life of the brain electrode device, avoiding the overall replacement of the brain electrode device, and reducing damage to the implanted object and reducing the subsequent maintenance cost of the brain electrode device.

[0063] On the other hand, an embodiment of the present application also provides a brain electrode device, including a brain electrode fixing device, a data processing circuit board 3 and a brain electrode 4 in an embodiment of the present application; the brain electrode fixing device is detachably connected to the data processing circuit board 3, and the brain electrode fixing device is fixedly connected to the brain electrode 4; the data processing circuit board 3 is detachably connected to the brain electrode 4.

[0064] In the embodiment of the present application, the beneficial effects of the brain electrode device are consistent with the beneficial effects of the brain electrode fixing device, and will not be repeated here.

[0065] In an embodiment of the present application, the brain electrode 4 includes an electrode wire 42, an electrode plate 41 and a connection interface. The brain electrode 4 is detachably connected to the data processing circuit board 3 through the connection interface; the electrode wire 42 is in contact with the brain nerves; the electrode wire 42 is arranged at the input end of the electrode plate 41, and the connection interface is arranged at the output end of the electrode plate 41.

[0066] In an embodiment of the present application, the electrode wire 42 is used to collect brain nerve signals from the brain nerves; the electrode plate 41 is used to transmit the collected brain nerve signals; the connection interface matches the connection port on the data processing circuit board 3; the connection interface is used to transmit the brain nerve signals to the data processing circuit board 3.

[0067] In a specific embodiment of the present application, the electrode plate 41 is a flexible electrode plate 41 .

[0068] In the embodiment of the present application, the data processing circuit board 3 includes a signal processing module and a data transfer module 31. The input end of the signal processing module is communicatively connected to the brain electrode 4; the input end of the data transfer module 31 is communicatively connected to the output end of the signal processing module; and the output end of the data transfer module 31 is communicatively connected to the analysis and display device.

[0069] In the embodiment of the present application, the signal processing module is used to pre-process the brain signal, and the data transfer module 31 is used to transmit the pre-processed brain nerve signal to the analysis and display device.

[0070] In a specific embodiment of the present application, the data transfer module 31 can be communicatively connected to the analysis and display device through a transmission port; the specific transmission port is set on the data transfer module 31, and the transmission port can be a fully digital video and sound transmission interface (HDMI port).

[0071] In another embodiment of the present application, the data transfer module 31 can be connected to the analysis and display device through wireless means such as Bluetooth and local area network.

[0072] refer to Figure 4 In an embodiment of the present application, the brain electrode device also includes a sealed shell 5, one end of which is fixedly connected to the skull, and the sealed shell 5 and the skull form a closed space; the first fixed bracket 1, the second fixed bracket 2, the data processing circuit board 3 and the brain electrode 4 are arranged in the closed space.

[0073] In the embodiment of the present application, a sealed housing 5 is provided so that the brain electrode 4 is placed in a closed space, thereby preventing environmental contamination of the brain and improving the reliability of the brain electrode device.

[0074] In the embodiment of the present application, the sealed housing 5 includes a fixed base 51 and a detachable housing 52 , and the fixed base 51 and the detachable housing 52 are detachably connected.

[0075] In the embodiment of the present application, the sealed housing 5 is configured as a fixed base 51 and a detachable housing 52 , thereby improving the convenience of replacing the data processing circuit board 3 .

[0076] refer to Figure 5 In the embodiment of the present application, the sealed housing 5 includes a bottom detachable housing 521, a middle detachable housing 522 and a top detachable housing 523; the height of the housing formed by the fixed base 51, the bottom detachable housing 521 and the middle detachable housing 522 is greater than the maximum height of the brain electrode fixing device; the height of the housing formed by the fixed base 51 and the bottom detachable housing 521 is less than or equal to the maximum height of the brain electrode fixing device.

[0077] In the embodiment of the present application, a bottom detachable shell 521, a middle detachable shell 522 and a top detachable shell 523 are provided. When the top detachable shell 523 is removed, the brain electrode device is exposed, which facilitates wired communication between the data processing circuit board 3 and the analysis and display device; when the top detachable shell 523 and the middle detachable shell 522 are removed, it facilitates the replacement of the data processing circuit board 3; and the detachable shell 52 is disassembled based on actual conditions, thereby improving the flexibility of the brain electrode device based on actual application scenarios.

[0078] In a specific embodiment of the present application, the fixed base 51 and the bottom detachable shell 521 are both made of biocompatible materials, specifically, titanium alloy materials.

[0079] In a specific embodiment of the present application, the middle detachable shell 522 and the top detachable shell 523 can be made of aluminum alloy, thereby reducing the weight of the brain electrode fixing device and improving the comfort of the brain electrode device.

[0080] The working principle of the brain electrode device in the embodiment of the present application is described below:

[0081] The electrode wire 42 of the brain electrode 4 collects brain nerve signals and transmits them to the data processing circuit board 3 after being transmitted through the electrode plate 41. The data processing circuit board 3 pre-processes the brain nerve signals and then transmits them to the analysis and display device.

[0082] In the embodiments of the present application, the brain electrode device has the following beneficial effects:

[0083] By setting a first fixing bracket 1 and a second fixing bracket 2, the first fixing bracket 1 includes a circuit board fixing structure 12 that is detachably connected to the data processing circuit board 3, and the second fixing bracket 2 includes an electrode fixing structure 22 that is fixedly connected to one end of the electrode plate 41, and the other end of the electrode plate 41 is detachably connected to the data processing circuit board 3; when the brain electrode 4 is fixed, the data processing circuit board 3, which is more likely to fail than the brain electrode 4, is replaced separately, thereby increasing the service life of the brain electrode device, avoiding the overall replacement of the brain electrode device, and reducing damage to the implanted object and reducing the subsequent maintenance cost of the brain electrode device.

[0084] The above description has fully disclosed the specific embodiments of this application. It should be noted that any changes made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims of this application. Accordingly, the scope of the claims of this application is not limited to the above specific embodiments.

Claims

1. A brain electrode fixing device, characterized in that: It comprises a first fixing bracket (1) and a second fixing bracket (2), wherein the first fixing bracket (1) and the second fixing bracket (2) are arranged at intervals; The first fixing bracket (1) comprises a first skull fixing structure (11) and a circuit board fixing structure (12), the first skull fixing structure (11) is fixedly connected to the circuit board fixing structure (12), and the data processing circuit board (3) is detachably connected to the circuit board fixing structure (12); the first skull fixing structure (11) is fixed to the skull of the implanted subject by a fixing member; The second fixing bracket (2) includes a second skull fixing structure (21) and an electrode fixing structure (22), wherein the second skull fixing structure (21) is connected to the electrode fixing structure (22); the second skull fixing structure (21) is fixed to the skull of the implanted subject by a fixing member; the fixing member includes a screw, a pin or a bolt; The brain electrode (4) comprises an electrode plate (41), one end of the electrode plate (41) is fixedly connected to the electrode fixing structure (22), and the other end of the electrode plate (41) is detachably connected to the data processing circuit board (3); the input end of the brain electrode (4) is implanted in the brain of the implanted subject.

2. A brain electrode fixing device according to claim 1, characterized in that: The circuit board fixing structure (12) comprises a sliding groove, and the data processing circuit board (3) is detachably connected to the circuit board fixing structure (12) via the sliding groove.

3. The brain electrode fixing device according to claim 1, characterized in that: The first fixing bracket (1) further comprises a wing limiting structure (13), wherein the wing limiting structure (13) is arranged on both sides of the circuit board fixing structure (12), and the wing limiting structure (13) is detachably connected to the circuit board fixing structure (12).

4. The brain electrode fixing device according to claim 3, characterized in that: The first fixing bracket (1) further comprises a top limiting structure (14), wherein the top limiting structure (14) is arranged at an end away from the first skull fixing structure (11), and the top limiting structure (14) is detachably connected to the side wing limiting structure (13).

5. A brain electrode device, characterized in that Comprising any one of the brain electrode fixing devices according to claims 1 to 4, a data processing circuit board (3) and a brain electrode (4); The brain electrode fixing device is detachably connected to the data processing circuit board (3), and the brain electrode fixing device is fixedly connected to the brain electrode (4); The data processing circuit board (3) is detachably connected to the brain electrode (4).

6. The brain electrode device according to claim 5, characterized in that: The brain electrode (4) comprises an electrode wire (42), an electrode plate (41) and a connection interface, and the brain electrode (4) is detachably connected to the data processing circuit board (3) via the connection interface; The electrode wire (42) is in contact with the cranial nerve; The electrode wire (42) is arranged at the input end of the electrode plate (41), and the connection interface is arranged at the output end of the electrode plate (41).

7. The brain electrode device according to claim 5, characterized in that: The data processing circuit board (3) comprises a signal processing module and a data transfer module (31), and the input end of the signal processing module is communicatively connected to the brain electrode (4); The input end of the data transfer module (31) is communicatively connected to the output end of the signal processing module; The output end of the data transfer module (31) is communicatively connected to the analysis and display device.

8. The brain electrode device according to claim 5, characterized in that: It also includes a sealed shell (5), one end of which is fixedly connected to the skull, and the sealed shell (5) and the skull form a closed space; The first fixing bracket (1), the second fixing bracket (2), the data processing circuit board (3) and the brain electrode (4) are arranged in the enclosed space.

9. The brain electrode device according to claim 8, characterized in that: The sealed housing (5) comprises a fixed base (51) and a detachable housing (52), and the fixed base (51) and the detachable housing (52) are detachably connected.

10. The brain electrode device according to claim 9, characterized in that: The sealed housing (5) comprises a bottom detachable housing (521), a middle detachable housing (522) and a top detachable housing (523); The height of the housing formed by the fixed base (51), the bottom detachable housing (521) and the middle detachable housing (522) is greater than the maximum height of the brain electrode fixing device; The height of the housing formed by the fixed base (51) and the bottom detachable housing (521) is less than or equal to the maximum height of the brain electrode fixing device.

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