Embedded intracranial electrode fixing device

Abstract

The invention provides an embedded intracranial electrode fixing device, and relates to the technical field of medical equipment. The embedded intracranial electrode fixing device comprises a pulse generator, first wires are arranged at the two output ends of the pulse generator, first fixing structures are arranged on the outer sides of the two first wires, electrode connectors are arranged at the ends of the two first wires, second wires are arranged on the inner sides of the two electrode connectors, and the first fixing structures and the second fixing structures are arranged on the outer sides of the second wires. Second fixing structures are arranged on the outer sides of the two second wires. The second wire penetrates through the clamping groove, the clamping block is rotated and rotates along the rotating groove, the second wire is clamped in the clamping groove, the clamping block is pressed on the clamping block through the clamping block on one side to limit the clamping block, the base is fixed to the opening position of the head through the screw, the size is small, fixing is carried out relative to a lock catch, and the structure is smaller and more exquisite; after skin sewing, protrusions are small, pulling on the scalp of a patient is reduced, and discomfort of the patient is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments and equipment, and in particular to an embedded intracranial electrode fixing device. Background Art

[0002] Deep brain stimulation is one of the most important advances in the field of clinical neuroscience. Its application in the field of neurological and psychiatric diseases has been explored in more than ten diseases, including movement disorders, Tourette syndrome, pain, epilepsy, Alzheimer's disease, major depression, bipolar disorder, obsessive-compulsive disorder and anorexia nervosa. With the progress of society and the improvement of people's demand for quality of life, the number of DBS surgeries has increased year by year. The key core of DBS surgery is the precise implantation of deep brain electrodes. After the electrodes are implanted, the electrode wires need to be fixed in the specific electrode locks of the bone holes to ensure the stability of the electrode position.

[0003] However, there are still some problems in the use of the current electrode fixing device. First, the electrode fixing structure needs to be fixed to the skull, and then the lock is fixed to the electrode fixing structure. The lock clamps the electrode wire like a clip to fix it. In addition, the electrode fixing structure fixed to the skull often protrudes from the surface of the skull. After the skin is sutured, there will be a certain degree of scalp protrusion, which pulls the scalp and causes discomfort to the patient. The electrode connecting wire is exposed to the outside world and is prone to pulling, causing electrode displacement. In addition, the electrode fixing device is easily affected by external electromagnetic interference in a complex electromagnetic environment, resulting in unstable signal transmission and affecting the treatment effect. Therefore, those skilled in the art provide a DBS electrode and extension wire skull fixing device to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an embedded intracranial electrode fixing device, which solves the problem of first fixing the electrode fixing structure to the skull and then fixing the lock to the electrode fixing structure. The lock clamps the electrode wire like a clip to fix it. In addition, the electrode fixing structure fixed to the skull often protrudes from the skull surface. After the skin is sutured, there will be a certain degree of scalp protrusion, pulling the scalp and causing discomfort to the patient. In addition, the electrode connecting wire is exposed to the outside world and is easily pulled, causing the problem of electrode displacement.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an embedded intracranial electrode fixing device, comprising a pulse generator, wherein both output ends of the pulse generator are provided with a first wire, the outer sides of the two first wires are provided with a first fixing structure, the ends of the two first wires are provided with an electrode connector, the inner sides of the two electrode connectors are provided with a second wire, the outer sides of the two second wires are provided with a second fixing structure, the ends of the two second wires are sleeved with an electrode fixing structure, the ends of the two second wires are provided with an electrode rod body, the ends of the two electrode rod bodies are provided with contacts, the rear end face of the pulse generator is provided with a connecting structure, the pulse generator is connected to the two first wires and the two second wires through the two first wires, the second wires and the first wires are fixed through the first fixing structure and the second fixing structure, so as to prevent the first wire and the second wire from being displaced behind the ear, which may cause danger, and fix the pulse generator away from the head, which is convenient for later care and can also reduce the discomfort caused by head fixation;

[0008] The first fixing structure includes a first nail plate and two first screws, the two first screws are respectively arranged on both sides of the center of the upper end surface of the first nail plate, the lower ends of the two first screws pass through the upper end surface of the first nail plate to the lower end of the first nail plate, the first nail plate is in the shape of an arc, a first rubber clamping block is fixedly connected to the inner arc of the first nail plate, two first clamping grooves are horizontally arranged on a side wall of the first rubber clamping block away from the first nail plate, and first guide grooves are provided at the edges of the two inner walls of the two first clamping grooves, the two first wires are limited by the first fixing structure, and the two second wires are limited by the two second fixing structures to prevent displacement while extending the connection of the pulse generator, reducing the fixation of the head equipment and increasing comfort.

[0009] Preferably, the electrode fixing structure includes a base, a gasket is provided inside the base, a plurality of slots are provided at the edge of the upper end surface of the gasket, four blocks are arranged in a rectangular shape at the upper center of the inner wall of the base, a clamping groove is provided at one side of the center of the upper end surface of the gasket, a rotating groove is provided on an inner wall of the clamping groove, a clamping block is rotatably connected inside the rotating groove, the second wire is clamped inside the clamping groove by passing the second wire through the clamping groove and rotating the clamping block, and the clamping block rotates along the rotating groove, and the second wire is clamped inside the clamping groove, and the clamping block is limited by pressing the clamping block on one side, and then the base is fixed to the opening position of the skull by screws, the volume is small, and compared with the fixation by a lock buckle, the structure is more compact, the bulge is smaller after the skin is sewed, the pulling on the patient's scalp is reduced, and the patient's discomfort is reduced.

[0010] Preferably, the second fixing structure includes a second nail plate, an outer rubber cover and two second screws, the outer rubber cover is arranged on the outside of the second nail plate, the two second screws are respectively arranged on both sides of the center of the upper end surface of the second nail plate, and the ends both pass through the upper end surface of the second nail plate to the lower end of the second nail plate, and the second nail plate is fixed by the two second screws.

[0011] Preferably, the second nail plate is in the shape of an arc, a second rubber clamping block is fixedly connected to the inner arc of the second nail plate, a second clamping groove is provided at the center of a side wall of the second rubber clamping block away from the second nail plate, and second guide grooves are provided at the edges of both inner side walls of the second clamping groove. The second wire is clamped by the second clamping groove to provide stability for the second wire and prevent pulling of the electrode rod body.

[0012] Preferably, the connection structure includes a base and two substrates, the two substrates are provided at the rear end of the base, a slide groove is opened at the center of the rear end surface of the base close to one side, a first permanent magnet is fixedly connected to the center of the front inner wall of the slide groove, a connecting column is fixedly connected to the center of one end surface of the two substrates, the other ends of the two connecting columns are fixedly connected to an insertion plate, and the second permanent magnet is fixedly connected to the center of the other end surface of the two insertion plates, and by inserting the insertion plate into the slide groove, the first permanent magnet and the second permanent magnet are magnetically attracted to each other, thereby fixing the substrate.

[0013] Preferably, a clamp is fixedly connected to the center of the other end surface of one of the substrates, and a plurality of storage slots are arranged in a rectangular shape at the other end of the other side substrate, and a plurality of suction cups are fixedly connected inside the plurality of storage slots. The plurality of suction cups are used to adsorb the pulse generator on the bed frame or other equipment. If there is no position for adsorption, the two substrates can be replaced and the clamp can be used to clamp the pulse generator on the clothing, so as to fix the pulse generator according to the usage.

[0014] Preferably, an electromagnetic shielding layer is provided on the outer side wall of the base, the gasket and the rotating groove. The electromagnetic shielding layer is made of a nano-composite material and is lightweight, high-strength and has high electromagnetic absorption performance. A conductive graphene film is coated on the inside of the electromagnetic shielding layer to absorb external electromagnetic interference signals. A multi-layer microporous structure is provided on the outer surface of the electromagnetic shielding layer to improve the electromagnetic wave reflection and absorption efficiency while maintaining the heat dissipation performance of the device. The electromagnetic shielding layer is separated from the insulating layer of the electrode rod body to ensure the stability and accuracy of the electrode signal transmission.

[0015] (III) Beneficial effects

[0016] The present invention provides an embedded intracranial electrode fixing device, which has the following beneficial effects:

[0017] 1. In the present invention, the second wire is passed through the clamping groove, and the clamping block is rotated along the rotating groove to clamp the second wire inside the clamping groove, and the clamping block is limited by pressing a clamping block on one side, and then the base is fixed to the opening position of the skull by screws. The size is small, and compared with the fixing by a lock buckle, the structure is more compact, and the bulge after the skin is sutured is smaller, which reduces the pulling on the patient's scalp and reduces the patient's discomfort.

[0018] 2. In the present invention, the two first wires and the two second wires are limited and fixed by the two second nail plates and the first rubber clamping block and the second rubber clamping block inside the first nail plate, so as to prevent the first wires and the second wires from being displaced behind the ears and causing danger.

[0019] 3. In the present invention, the pulse generator is connected by two first wires and fixed away from the head, which is convenient for later care and can also reduce the discomfort caused by head fixation.

[0020] 4. In the present invention, the plug plate is inserted into the slide groove, and the first permanent magnet and the second permanent magnet are magnetically attracted to each other, and the pulse generator is adsorbed on the bed frame or other equipment through multiple suction cups. If there is no adsorption position, the two base plates are replaced and clamped on the clothes with a clamp, so as to fix the pulse generator according to the usage.

[0021] 5. In the present invention, by adding an electromagnetic shielding layer around the electrode fixing structure and adding electromagnetic shielding to the intracranial electrode, it is possible to effectively shield external electromagnetic interference signals, some high-frequency electromagnetic waves or low-frequency magnetic field noise, ensure that the signal transmitted by the electrode wire is pure and stable, and improve the accuracy of deep brain electrical stimulation therapy. The shielding layer adopts graphene film and nano-composite materials, combined with a multi-layer microporous structure design, which can significantly reduce the impact of interference signals on the device in a strong electromagnetic interference environment around an MRI room or surgical equipment, thereby improving the applicability of the device in high electromagnetic interference scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 A three-dimensional diagram of the pulse generator of the present invention from another perspective;

[0024] Figure 3 is a front cross-sectional view of a second fixing structure of the present invention;

[0025] Figure 4 A three-dimensional diagram of the electrode fixing structure of the present invention;

[0026] Figure 5 is a front cross-sectional view of a first fixing structure of the present invention;

[0027] Figure 6 is a top cross-sectional view of the substrate of the present invention;

[0028] Figure 7 It is a three-dimensional exploded view of the electrode fixing structure of the present invention.

[0029] Among them, 1. pulse generator; 2. first wire; 3. first fixing structure; 301. first nail plate; 302. first screw; 303. first rubber clamping block; 304. first clamping groove; 305. first guide groove; 4. electrode connector; 5. contact; 6. electrode rod; 7. electrode fixing structure; 701. base; 702. clamping block; 703. washer; 704. clamping block; 705. clamping groove; 706. rotating groove; 707. clamping groove; 8. second wire; 9. Second fixing structure; 901. Second nail plate; 902. Rubber cover; 903. Second screw; 904. Second rubber clamping block; 905. Second clamping groove; 906. Second guide groove; 10. Connecting structure; 1001. Base; 1002. Slide groove; 1003. First permanent magnet; 1004. Insert plate; 1005. Second permanent magnet; 1006. Base plate; 1007. Clamping plate; 1008. Connecting column; 1009. Storage tank; 1010. Suction cup. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-7As shown, an embodiment of the present invention provides an embedded intracranial electrode fixing device, including a pulse generator 1. Both output ends of the pulse generator 1 are provided with a first wire 2, the outer side of the two first wires 2 is provided with a first fixing structure 3, the ends of the two first wires 2 are provided with an electrode connector 4, the inner side of the two electrode connectors 4 is provided with a second wire 8, the outer side of the two second wires 8 is provided with a second fixing structure 9, the ends of the two second wires 8 are sleeved with an electrode fixing structure 7, the ends of the two second wires 8 are provided with an electrode rod body 6, the ends of the two electrode rod bodies 6 are provided with a contact 5, and the rear end face of the pulse generator 1 is provided with a connecting structure 10, the pulse generator 1 is connected to the two first wires 2 and the two second wires 8 through the two first wires 2 and the two second wires 8, and the second wire 8 and the first wire 1 are fixed by the first fixing structure 3 and the second fixing structure 9 to prevent the first wire 1 and the second wire 8 from being displaced behind the ear, which may cause danger, and the pulse generator 1 is fixed away from the head, which is convenient for later care and can also reduce the discomfort caused by head fixation.

[0033] The first fixing structure 3 includes a first nail plate 301 and two first screws 302. The two first screws 302 are respectively arranged at both sides of the center of the upper end surface of the first nail plate 301. The lower ends of the two first screws 302 penetrate the upper end surface of the first nail plate 301 to the lower end of the first nail plate 301. The shape of the first nail plate 301 is an arc. A first rubber clamping block 303 is fixedly connected to the inner arc of the first nail plate 301. Two first clamping grooves 304 are arranged horizontally on a side wall of the first rubber clamping block 303 away from the first nail plate 301. First guide grooves 305 are opened at the edges of the two inner walls of the two first clamping grooves 304. The two first wires 2 are limited by the first fixing structure 3, and the two second fixing structures 9 limit the two second wires 8. While preventing displacement, the connection of the pulse generator 1 is extended, the fixation of the head device is reduced, and the comfort is increased.

[0034] The electrode fixing structure 7 includes a base 701, a gasket 703 is provided inside the base 701, a plurality of slots 705 are provided at the edge of the upper end surface of the gasket 703, four blocks 702 are arranged in a rectangular shape at the center of the inner side wall of the base 701, a clamping groove 707 is provided at one side of the center of the upper end surface of the gasket 703, a rotating groove 706 is provided on the inner side wall of the clamping groove 707, and a clamping block 704 is rotatably connected inside the rotating groove 706, and the second wire 8 is passed through the second wire 8. Through the clamping groove 707, by rotating the clamping block 704, the clamping block 704 rotates along the rotating groove 706, the second wire 8 is clamped inside the clamping groove 707, and the clamping block 704 is limited by pressing the clamping block 704 on one side with the block 702, and then the base 701 is fixed at the opening position of the skull by screws. It has a small volume and is more compact in structure than the lock buckle. After the skin is sutured, the protrusion is smaller, which reduces the pulling on the patient's scalp and reduces the patient's discomfort.

[0035] The second fixing structure 9 includes a second nail plate 901, an outer rubber cover 902 and two second screws 903. The outer rubber cover 902 is sleeved on the outside of the second nail plate 901. The two second screws 903 are respectively arranged on both sides of the center of the upper end surface of the second nail plate 901, and the ends thereof pass through the upper end surface of the second nail plate 901 to the lower end of the second nail plate 901, and the second nail plate 901 is fixed by the two second screws 903.

[0036] The second nail plate 901 is in the shape of an arc, and a second rubber clamping block 904 is fixedly connected to the inner arc of the second nail plate 901. A second clamping groove 905 is provided at the center of a side wall of the second rubber clamping block 904 away from the second nail plate 901. Second guide grooves 906 are provided at the edges of both inner side walls of the second clamping groove 905. The second clamping groove 905 clamps the second wire 8 to provide stability for the second wire 8 and prevent the electrode rod 6 from being pulled.

[0037] The connecting structure 10 includes a base 1001 and two substrates 1006. The two substrates 1006 are both provided at the rear end of the base 1001. A slide groove 1002 is opened at one side of the center of the rear end surface of the base 1001. A first permanent magnet 1003 is fixedly connected to the center of the front inner wall of the slide groove 1002. A connecting column 1008 is fixedly connected to the center of one end surface of the two substrates 1006. The other ends of the two connecting columns 1008 are fixedly connected to a plug plate 1004. The centers of the other end surfaces of the two plug plates 1004 are fixedly connected to a second permanent magnet 1005. By inserting the plug plate 1004 into the slide groove 1002, the first permanent magnet 1003 and the second permanent magnet 1005 are magnetically attracted to each other, thereby fixing the substrate 1006.

[0038] A clamping plate 1007 is fixedly connected to the center of the other end surface of one of the substrates 1006, and a plurality of storage slots 1009 are arranged in a rectangular shape at the other end of the other substrate 1006. A plurality of suction cups 1010 are fixedly connected inside the plurality of storage slots 1009. The plurality of suction cups 1010 are used to adsorb the pulse generator 1 on a bed frame or other equipment. If there is no position for adsorption, the two substrates 1006 can be replaced and the clamping plate 1007 can be used to clamp the pulse generator 1 on clothing, so as to fix the pulse generator 1 according to the usage.

[0039] Electromagnetic shielding layers are provided on the outer side walls of the base 701, the gasket 703 and the rotating groove 706. The electromagnetic shielding layer is made of a nano-composite material, which is lightweight, high-strength and has high electromagnetic absorption performance. A conductive graphene film is coated inside the electromagnetic shielding layer to absorb external electromagnetic interference signals. A multi-layer microporous structure is provided on the outer surface of the electromagnetic shielding layer to improve the electromagnetic wave reflection and absorption efficiency while maintaining the heat dissipation performance of the device. The electromagnetic shielding layer is separated from the insulating layer of the electrode rod body to ensure the stability and accuracy of the electrode signal transmission.

[0040] The electrode fixing structure 7 is located at the connection area between the end of the second wire 8 and the electrode rod body 6. The shielding layer covers the area between the end of the second wire 8 and the electrode rod body 6 without affecting the normal fixing function of the clamp 704 and the clamping block 702. The electromagnetic shielding layer material adopts a multilayer composite structure of graphene and nano-composite materials. The outer layer is a conductive graphene film, and the inner layer is a lightweight nano-composite material. The graphene film has a thickness of 10 to 20 microns and has efficient electromagnetic absorption capacity. The inner layer of the nano-composite material is made of a mixture of polyimide and carbon nanotubes, which has high strength and biocompatibility. The outer surface of the electromagnetic shielding layer is processed with micropores with a diameter of 100 nanometers to 1 micron, and the porosity is 20% to 40%. The microporous structure further enhances the shielding effect through refraction and multiple absorption mechanisms, and at the same time improves the heat dissipation performance of the device. A 0.1 mm thick polyetheretherketone film is arranged between the electromagnetic shielding layer and the electrode rod body to ensure the stability of signal transmission and prevent the electromagnetic shielding layer from directly interfering with the electrode signal.

[0041] Nanocomposites are multifunctional materials formed by combining nano-scale functional materials with matrix materials. When used in electromagnetic shielding layers, they need to take into account shielding performance, lightweight, biocompatibility and durability. The matrix material is a polymer matrix material, and its components include polyetheretherketone or polyimide polymer materials, which provide a lightweight, high-strength matrix structure, good biocompatibility, suitable for medical implant environments, excellent heat resistance and chemical stability, and adapt to the complex conditions in the human body environment. The functional filler is a nano-conductive material, and its components include graphene, which provides high conductivity and high electromagnetic shielding efficiency. The thin layer structure enhances the wave absorption ability, and also includes carbon nanotubes, which enhance the electromagnetic absorption and conductive path connectivity of the shielding material, while improving the mechanical strength of the material. The main function is to increase the shielding layer's absorption efficiency of high-frequency electromagnetic waves and improve the conductivity and shielding performance of the overall material. The electromagnetic shielding layer effectively absorbs external electromagnetic interference signals through its conductive graphene film, and blocks the interference signals outside the shielding layer.

[0042] The heat dissipation performance is optimized through the outer microporous structure to ensure that the temperature of the shielding layer is maintained below 37°C during long-term use, preventing overheating from affecting patient comfort. After the equipment is installed, the integrity of the signal is checked by a signal tester to ensure that the shielding layer does not interfere with the normal operation of the electrode. The test was carried out in a high electromagnetic interference environment in the hospital. When the shielding function was turned on, the signal interference was reduced by 98%, and the signal error rate of the equipment was reduced from the original 15% to 0.3%. The microporous heat dissipation structure maintains the temperature of the shielding layer between 35°C and 36°C during long-term operation without overheating. This embodiment significantly improves the device's anti-electromagnetic interference capability and heat dissipation performance by improving the electromagnetic shielding layer of the electrode fixing device, ensuring signal stability in complex environments. This solution is suitable for scenarios requiring high-precision signal transmission in deep brain stimulation surgery, which helps to improve the safety and effectiveness of clinical treatment.

[0043] The material has good biocompatibility, reducing the risk of postoperative inflammation and rejection. The electromagnetic shielding layer and the electrode rod are separated by an insulation design to avoid interference of the shielding material on the signal transmission path and ensure the coordinated work of the fixed structure and shielding function. This design greatly reduces the risk of signal distortion and accidental failure during operation of the equipment. The material of the shielding layer has excellent corrosion resistance and high strength, and can resist erosion by body fluids and the influence of external mechanical stress, thus extending the stable working time of the equipment in the human body.

[0044] Working principle: When in use, the second wire 8 is passed through the clamping groove 707, and the clamping block 704 is rotated so that the clamping block 704 rotates along the rotating groove 706 to clamp the second wire 8 inside the clamping groove 707, and the clamping block 704 is limited by pressing the clamping block 704 on one side with the block 702, and then the base 701 is fixed to the opening position of the skull by screws. It is small in size and has a more compact structure than the lock buckle. The protrusion is smaller after the skin is sutured, which reduces the pulling on the patient's scalp and reduces the patient's discomfort. The two second nail plates 901 and the first rubber clamping block 303 and the second rubber clamping block 904 on the inner side of the first nail plate 301 limit and fix the two first wires 2 and the two second wires 8 to prevent the first wires 2 and the second wires 8 from being displaced behind the ears, causing danger. The pulse generator 1 is connected through the two first wires 2, and the pulse generator 1 is fixed away from the head, which is convenient for later care and can also reduce the discomfort caused by head fixation.

[0045] By inserting the plug plate 1004 into the slide groove 1002, the first permanent magnet 1003 and the second permanent magnet 1005 are magnetically attracted to each other, and adsorbed on the bed frame or other equipment through multiple suction cups 1010. If there is no adsorption position, by replacing the two base plates 1006 and using the clamping plate 1007 to clamp on the clothing, the pulse generator 1 can be fixed according to the usage.

[0046] The electromagnetic shielding layer on the outer wall of the base 701, the gasket 703 and the rotating groove 706 can effectively shield external electromagnetic interference signals, some high-frequency electromagnetic waves or low-frequency magnetic field noise, ensure that the signal transmitted by the electrode wire is pure and stable, and improve the accuracy of deep brain stimulation therapy. The shielding layer adopts graphene film and nano-composite materials, combined with a multi-layer microporous structure design, which can significantly reduce the impact of interference signals on the device in the strong electromagnetic interference environment around the MRI room or surgical equipment, thereby improving the applicability of the device in high electromagnetic interference scenarios.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An embedded intracranial electrode fixing device, comprising a pulse generator (1), characterized in that: The pulse generator (1) has two output ends each provided with a first wire (2), the first fixing structure (3) is provided on the outside of the two first wires (2), the ends of the two first wires (2) are each provided with an electrode connector (4), the inside of the two electrode connectors (4) are each provided with a second wire (8), the outside of the two second wires (8) are each provided with a second fixing structure (9), the ends of the two second wires (8) are each sleeved with an electrode fixing structure (7), the ends of the two second wires (8) are each provided with an electrode rod body (6), the ends of the two electrode rod bodies (6) are each provided with a contact (5), and the rear end face of the pulse generator (1) is provided with a connection structure (10); The first fixing structure (3) comprises a first nail plate (301) and two first screws (302), the two first screws (302) are respectively arranged at both sides of the center of the upper end surface of the first nail plate (301), the lower ends of the two first screws (302) penetrate the upper end surface of the first nail plate (301) to the lower end of the first nail plate (301), the first nail plate (301) is in the shape of an arc, a first rubber clamping block (303) is fixedly connected to the inner arc of the first nail plate (301), two first clamping grooves (304) are arranged transversely on a side wall of the first rubber clamping block (303) away from the first nail plate (301), and first guide grooves (305) are provided at the edges of both inner side walls of the two first clamping grooves (304).

2. The embedded intracranial electrode fixing device according to claim 1, characterized in that: The electrode fixing structure (7) comprises a base (701), a gasket (703) is provided inside the base (701), a plurality of clamping grooves (705) are provided on the upper end surface of the gasket (703) near the edge, four clamping blocks (702) are arranged in a rectangular shape near the center of the inner side wall of the base (701), a clamping groove (707) is provided on the center of the upper end surface of the gasket (703) near one side, a rotating groove (706) is provided on an inner side wall of the clamping groove (707), and a clamping block (704) is rotatably connected inside the rotating groove (706).

3. The embedded intracranial electrode fixing device according to claim 1, characterized in that: The second fixing structure (9) includes a second nail plate (901), a rubber cover (902) and two second screws (903), wherein the rubber cover (902) is sleeved on the outside of the second nail plate (901), and the two second screws (903) are respectively arranged at both sides of the center of the upper end surface of the second nail plate (901), and the ends thereof both pass through the upper end surface of the second nail plate (901) and reach the lower end of the second nail plate (901).

4. The embedded intracranial electrode fixing device according to claim 3, characterized in that: The second nail plate (901) is in the shape of an arc, and a second rubber clamping block (904) is fixedly connected to the inner arc of the second nail plate (901). A second clamping groove (905) is provided at the center of a side wall of the second rubber clamping block (904) away from the second nail plate (901), and second guide grooves (906) are provided at the edges of both inner side walls of the second clamping groove (905).

5. The embedded intracranial electrode fixing device according to claim 1, characterized in that: The connection structure (10) comprises a base (1001) and two base plates (1006), the two base plates (1006) are both arranged at the rear end of the base (1001), a slide groove (1002) is provided at one side of the center of the rear end surface of the base (1001), a first permanent magnet (1003) is fixedly connected at the center of the front inner wall of the slide groove (1002), a connecting column (1008) is fixedly connected at the center of one end surface of the two base plates (1006), the other ends of the two connecting columns (1008) are fixedly connected to the plug plate (1004), and the other end centers of the two plug plates (1004) are fixedly connected to the second permanent magnet (1005).

6. The embedded intracranial electrode fixing device according to claim 5, characterized in that: A clamping plate (1007) is fixedly connected to the center of the other end surface of one of the substrates (1006), and a plurality of storage slots (1009) are arranged in a rectangular shape at the other end of the other substrate (1006), and a plurality of suction cups (1010) are fixedly connected inside the plurality of storage slots (1009).

7. The embedded intracranial electrode fixing device according to claim 2, characterized in that: An electromagnetic shielding layer is provided on the outer side walls of the base (701), the gasket (703) and the rotating groove (706); the electromagnetic shielding layer is made of a nano-composite material; a conductive graphene film is coated inside the electromagnetic shielding layer; and a multi-layer microporous structure is provided on the outer surface of the electromagnetic shielding layer.

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