Electroencephalogram wire fixing belt after intracranial electrode implantation

Abstract

The application discloses a brain electric wire fixing band after intracranial electrode implantation, which effectively solves the problem of inconvenient wire fixation after operation of the patient with implanted electrodes; the brain electric wire fixing band comprises a winding band, a fixing ring is arranged at the left free end of the winding band, the winding band is in a circular ring shape and the right free end of the winding band penetrates through the fixing ring, a positioning air bag is fixed to the inner side of the winding band, connecting rings are respectively fixed to the left and right sides of the upper end of the winding band, a pressing band in the up-down direction is fixed to the middle part of the winding band, two anti-pressure air bags are fixed to the upper end of the winding band and are located between the two connecting rings, the pressing band is located between the two anti-pressure air bags, an inflation device is fixed to the right end of the winding band, the left end of the inflation device is communicated with the positioning air bag through a main air pipe, the upper side of the inflation device is communicated with the right anti-pressure air bag through a secondary air pipe, and the two anti-pressure air bags are communicated through a connecting pipe; the structure is simple, convenient to operate, novel in design and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to a brain circuit fixation belt after intracranial electrode implantation. Background Technology

[0002] Electroencephalography (EEG) monitoring is a core technology for epilepsy diagnosis and epileptogenic focus localization. Electrode systems are mainly divided into two categories: scalp EEG electrodes and intracranial electrodes. Scalp electrodes acquire signals by non-invasively attaching to the skull surface, while intracranial electrodes (including deep electrodes and cortical electrodes) require surgical implantation into the cranium to directly contact brain tissue and obtain high-precision electrophysiological signals, making them particularly suitable for preoperative assessment of drug-resistant epilepsy. However, both types of electrodes face the common problem of insufficient fixation stability in clinical applications. Currently, scalp electrodes mostly rely on disposable... Medical adhesive tape or elastic head mesh provides initial fixation, but lacks secondary reinforcement measures for long-term monitoring or patient activity, making it prone to electrode displacement or poor contact due to sweat secretion, changes in body position, etc. Intracranial electrode fixation is even more complex: after deep electrode implantation, initial anchoring is usually achieved by filling the bone hole with material (such as gelatin sponge) and dural sutures, while cortical electrode arrays are locally fixed by skull screws; however, during postoperative monitoring (usually lasting several days to several weeks), the electrode system lacks operable secondary fixation techniques, and its stability depends entirely on the fixation effect of the initial surgery;

[0003] This technical limitation is particularly prominent in epilepsy seizure monitoring scenarios. Patients with deep intracranial electrode implantation need continuous EEG monitoring to "capture" signals during epileptic seizures in order to accurately locate the epileptogenic focus. However, during epileptic seizures, patients often experience severe limb convulsions, neck muscle rigidity, or head-impact behaviors, and the resulting mechanical stress can be directly transmitted to the electrode-brain tissue interface. Existing fixation systems are unable to effectively buffer such sudden external forces, which can easily lead to relative displacement or even complete detachment of the electrode from the brain parenchyma. This not only causes the loss of key electrophysiological data and prolongs the monitoring period, but may also lead to serious complications such as brain tissue damage and intracranial hemorrhage. Although clinical attempts have been made to control the intensity of seizures with sedative drugs, this may suppress epileptiform discharges and reduce the accuracy of localization. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a fixation belt for the electroencephalogram (EEG) circuit after intracranial electrode implantation, which effectively solves the problem of inconvenient circuit fixation for patients after electrode implantation.

[0005] The technical solution is as follows: This utility model includes a winding tape, a fixing ring at the left free end of the winding tape, the winding tape being arranged in a circular pattern with its right free end passing through the fixing ring, a positioning airbag fixed inside the winding tape, connecting rings fixed on the left and right sides of the upper end of the winding tape, a pressing band fixed in the middle of the winding tape in the vertical direction, two anti-pressure airbags fixed at the upper end of the winding tape, the anti-pressure airbags being located between the two connecting rings, the pressing band being located between the two anti-pressure airbags, an inflation device fixed at the right end of the winding tape, the left end of the inflation device being connected to the positioning airbag via the main vent pipe, the upper side of the inflation device being connected to the right anti-pressure airbag via the auxiliary vent pipe, and the two anti-pressure airbags being connected via a connecting pipe.

[0006] This invention enables quick and adjustable binding using a combination of wrapping straps and Velcro. Combined with the directional inflation of the positioning airbag, the device is secured to the patient's arm. The synergistic design of the pressure-reducing airbags on both sides and the compression straps effectively stabilizes the EEG circuitry, mitigating the risk of lateral electrode displacement. Furthermore, the airbag deformation absorbs the sudden impact force generated during epileptic seizures. The inflation device employs a slider-controlled directional inflation mode, allowing for independent inflation of the positioning and pressure-reducing airbags. The interlocking structure of the fixing ring teeth and the wrapping strap's grooves significantly enhances tensile strength. Combined with the controllable pressure relief characteristics of the airbag, it maintains fixation while avoiding local tissue compression damage, thus improving the integrity and accuracy of epilepsy monitoring data. This structure is simple, easy to operate, innovative, and highly practical. Attached Figure Description

[0007] Figure 1 This is an isometric drawing of this utility model.

[0008] Figure 2 This is a partial sectional front view axonometric drawing of this utility model.

[0009] Figure 3 This is a partial sectional right-view axonometric drawing of this utility model.

[0010] Figure 4 This is a partial sectional front view axonometric drawing of this utility model.

[0011] Figure 5 This is a utility model Figure 2 A magnified view of A in the middle.

[0012] Figure 6 This is a utility model Figure 2 A magnified view of B in the middle.

[0013] Figure 7 This is a utility model Figure 2 A magnified view of C.

[0014] Figure 8 This is a utility model Figure 4 A magnified view of D. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Depend on Figures 1 to 8 The device includes a winding tape 1, a fixing ring 2 at the left free end of the winding tape 1, the winding tape 1 being arranged in a circular pattern with its right free end passing through the fixing ring 2, a positioning airbag 3 fixed inside the winding tape 1, connecting rings 4 fixed on the left and right sides of the upper end of the winding tape 1, a vertical compression band 5 fixed in the middle of the winding tape 1, two anti-pressure airbags 6 fixed at the upper end of the winding tape 1, the anti-pressure airbags 6 being located between the two connecting rings 4, the compression band 5 being located between the two anti-pressure airbags 6, an inflation device fixed at the right end of the winding tape 1, the left end of the inflation device being connected to the positioning airbag 3 via a main vent pipe 7, the upper side of the inflation device being connected to the right anti-pressure airbag 6 via a secondary vent pipe 8, and the two anti-pressure airbags 6 being connected via a connecting pipe 9.

[0017] To facilitate the wrapping tape 1 to be wrapped around the patient's arm and to facilitate the use of the compression tape 5, both the free end of the wrapping tape 1 and the free end of the compression tape 5 are provided with Velcro, and both the right side of the wrapping tape 1 and the right side of the compression tape 5 are provided with Velcro that can be adhered to the Velcro.

[0018] To facilitate a stronger connection between the free ends of the winding tape 1 and the fixing ring 2, the lower right side of the winding tape 1 is provided with a plurality of toothed grooves 10 evenly distributed in the left-right direction, with the openings of the toothed grooves 10 facing downwards. The right side of the fixing ring 2 is fixed with a fixing post 11, and the fixing post 11 is provided with a plurality of toothed blocks 12 evenly distributed in the circumferential direction.

[0019] To facilitate the inflation of the positioning airbag 3 and the anti-pressure airbag 6, the inflation device includes a main body 13, on which a convex inflation groove 14 is provided. The inflation groove 14 can be connected to the main air pipe 7 and the auxiliary air pipe 8. A hemispherical elastic inflation sleeve 15 is fixed to the right end of the main body 13, and the left end of the elastic inflation sleeve 15 is connected to the inflation groove 14.

[0020] To facilitate the use of the elastic inflatable sleeve 15, an air exchange pipe 16 is provided on the upper side of the elastic inflatable sleeve 15. An air exchange one-way valve 17 with its opening facing the inside of the elastic inflatable sleeve 15 is provided in the air exchange pipe 16. An air inlet one-way valve 18 is provided in the main air pipe 7 and the auxiliary air pipe 8 respectively. The opening of the air inlet one-way valve 18 faces the side away from the inflation groove 14.

[0021] To facilitate control of the main vent pipe 7 and the auxiliary vent pipe 8 connecting to the inflation groove 14, a slider 19 is slidably connected to the main body 13. The slider 19 has a through hole 20 that runs vertically through it. The upper end of the through hole 20 is connected to the auxiliary vent pipe 8 and the lower end is connected to the inflation groove 14. The slider 19 also has an inverted L-shaped connecting hole 21 located behind the through hole 20. The left end of the connecting hole 21 can be connected to the main connecting pipe 9 and the lower end can be connected to the inflation groove 14.

[0022] To facilitate the control of the movement of the slider 19, a screw 22 is threadedly connected to the main body 13. The left end of the screw 22 is rotatably connected to the slider 19. A sliding groove 23 is slidably connected inside the main body 13, and the slider 19 is located in the sliding groove 23.

[0023] In order to facilitate the discharge of gas from the anti-pressure airbag 6 and the positioning airbag 3, the anti-pressure airbag 6 and the positioning airbag 3 are respectively provided with exhaust pipes, and the exhaust pipes are threaded with plugs 24.

[0024] In use, the wrapping tape 1 is wrapped around the patient's arm, the free end of the wrapping tape 1 is passed through the fixing ring 2 and tightened, and initial fixation is completed by attaching the Velcro tabs to the Velcro tabs; then the inflation device is operated, rotating the screw 22 to drive the slider 19 to move until the connecting hole 21 is aligned with the main ventilation tube 7, pressing the elastic inflation sleeve 15 to inject gas into the positioning airbag 3 through the main ventilation tube 7. During this process, the gas in the elastic inflation sleeve 15 moves into the positioning airbag 3 through the one-way air inlet valve 18. At the same time, when the elastic inflation sleeve 15 returns to its original position, the gas in the air exchange tube 16 moves into the positioning airbag 3. The one-way valve 17 draws outside air into the elastic inflatable sleeve 15. Since the opening of the one-way valve 18 faces away from the elastic inflatable sleeve 15, the air in the positioning airbag 3 and the anti-pressure airbag 6 will not be discharged. By repeatedly pressing the elastic inflatable sleeve 15, the positioning airbag 3 is inflated through the above process. After the positioning airbag 3 expands, it adheres tightly to the skin and fixes the connecting ring 4 on the patient's arm. The expansion of the positioning airbag 3 squeezes and wraps the toothed groove 10 on the lower side of the wrapping band 1, so that the toothed groove 10 fits tightly with the toothed block 12 on the fixing post 11, further increasing the reliability of the device when it is fixed.

[0025] Then, place the bundled EEG circuits entirely into the right-side pressure-resistant airbag 6. At this point, pass the clamping strap 5 through the right-side connecting ring 4, so that the EEG circuits are located inside the clamping strap 5. Then, slightly bend the EEG circuits and place the other side of the EEG circuits on the left-side pressure-resistant airbag 6. Fold the clamping strap 5 so that it presses down on the EEG circuits placed on the left side. Then, pass it through the left-side connecting ring 4, and use Velcro and Velcro to wrap and position the circuits with the clamping strap 5. If it is necessary to fix multiple circuits separately, you can place the circuits on the left and right-side pressure-resistant airbags 6 without directly classifying them, and then pass the clamping strap 5 through the connecting ring 4 through the above process, fold it, and press down on the circuits on both sides.

[0026] When the above-mentioned circuit is fixed, there is a margin between the fixed position and the connection point of the circuit with the patient's brain, so that the EEG circuit will not be pulled when the patient's arm moves.

[0027] At this time, the rotating screw 22 switches to the position where the through hole 20 of the slider 19 connects with the auxiliary vent pipe 8. Press the elastic inflation sleeve 15 again to allow gas to flow through the auxiliary vent pipe 8 and sequentially fill the right anti-pressure airbag 6, the connecting pipe 9, and the left anti-pressure airbag 6, forming a buffer air cushion around the compression band 5. By adjusting the Velcro fastening position of the free end of the compression band 5, vertical pressure can be applied to enhance the fixing effect. After the monitoring is completed, unscrew the exhaust pipe plug 24 to release the airbag gas, and the device can be disassembled by reversing the Velcro fastening.

[0028] This invention utilizes a combination of a wrapping band, a positioning airbag, a pressure-resistant airbag, an inflation device, a compression band, and a fixing ring. The wrapping band and Velcro fastening mechanism enable rapid and adjustable binding. Combined with the directional inflation of the positioning airbag, the device is secured to the patient's arm. The synergistic design of the pressure-resistant airbags and compression band on both sides effectively stabilizes the EEG circuitry and mitigates the risk of lateral electrode displacement. Furthermore, the airbag's deformation absorbs the sudden impact force generated during a seizure. The inflation device employs a slider-controlled directional inflation mode, allowing for independent inflation of the positioning and pressure-resistant airbags. The interlocking structure of the fixing ring's teeth and the wrapping band's grooves significantly enhances tensile strength. Combined with the controllable pressure relief characteristics of the airbag, it maintains fixation while preventing local tissue compression damage, thus improving the integrity and accuracy of epilepsy monitoring data. This design is simple, easy to operate, innovative, and highly practical.

Claims

1. A fixation band for electroencephalogram (EEG) circuits after intracranial electrode implantation, including a wrapping band (1), characterized in that, The left free end of the wrapping tape (1) is provided with a fixing ring (2). The wrapping tape (1) is distributed in a circular shape and its right free end passes through the fixing ring (2). The inner side of the wrapping tape (1) is fixed with a positioning airbag (3). The left and right sides of the upper end of the wrapping tape (1) are respectively fixed with connecting rings (4). The middle part of the wrapping tape (1) is fixed with a pressing band (5) in the vertical direction. The upper end of the wrapping tape (1) is fixed with two anti-pressure airbags (6). The anti-pressure airbags (6) are located between the two connecting rings (4). The pressing band (5) is located between the two anti-pressure airbags (6). The right end of the wrapping tape (1) is fixed with an inflation device. The left end of the inflation device is connected to the positioning airbag (3) through the main air pipe (7). The upper side of the inflation device is connected to the right anti-pressure airbag (6) through the auxiliary air pipe (8). The two anti-pressure airbags (6) are connected through a connecting pipe (9).

2. The EEG circuit fixation band after intracranial electrode implantation according to claim 1, characterized in that, The right free end of the winding tape (1) and the right free end of the pressing tape (5) are both provided with Velcro, and the right side of the winding tape (1) and the right side of the pressing tape (5) are provided with Velcro that can be bonded to the Velcro.

3. The EEG circuit fixation band after intracranial electrode implantation according to claim 1, characterized in that, The lower right side of the winding tape (1) is provided with multiple toothed grooves (10) evenly distributed in the left and right direction. The opening of the toothed grooves (10) faces downward. The right side of the fixing ring (2) is fixed with a fixing post (11). The fixing post (11) is provided with multiple toothed blocks (12) evenly distributed in the circumferential direction.

4. The EEG circuit fixation band after intracranial electrode implantation according to claim 1, characterized in that, The inflation device includes a main body (13), on which a convex inflation groove (14) is provided. The inflation groove (14) can be connected to the main air pipe (7) and the auxiliary air pipe (8). A hemispherical elastic inflation sleeve (15) is fixed on the right end of the main body (13), and the left end of the elastic inflation sleeve (15) is connected to the inflation groove (14).

5. The EEG circuit fixation band after intracranial electrode implantation according to claim 4, characterized in that, The elastic inflatable sleeve (15) is provided with an air exchange pipe (16) on the upper side. The air exchange pipe (16) is provided with an air exchange one-way valve (17) with its opening facing the inside of the elastic inflatable sleeve (15). The main air pipe (7) and the auxiliary air pipe (8) are respectively provided with an air inlet one-way valve (18). The air inlet one-way valve (18) has its opening facing away from the inflation groove (14).

6. The EEG circuit fixation band after intracranial electrode implantation according to claim 4, characterized in that, The main body (13) is slidably connected to a slider (19). The slider (19) has a through hole (20) that runs vertically through it. The upper end of the through hole (20) is connected to the auxiliary vent pipe (8) and the lower end is connected to the inflation groove (14). The slider (19) has a connecting hole (21) that is inverted L-shaped and located behind the through hole (20). The left end of the connecting hole (21) can be connected to the main connecting pipe (9) and the lower end is connected to the inflation groove (14).

7. The EEG circuit fixation band after intracranial electrode implantation according to claim 4, characterized in that, The main body (13) is threaded with a screw (22), the left end of the screw (22) is rotatably connected to the slider (19), and a sliding groove (23) is slidably connected inside the main body (13), with the slider (19) located inside the sliding groove (23).

8. The EEG circuit fixation band after intracranial electrode implantation according to claim 1, characterized in that, The pressure relief airbag (6) and the positioning airbag (3) are respectively provided with exhaust pipes, and the exhaust pipes are threaded with plugs (24).

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