Fixing equipment used after intracranial electrode implantation

Abstract

The invention provides fixing equipment used after an intracranial electrode is implanted, and belongs to the field of electrode fixing equipment. Comprising a mounting frame, a buffer box is fixedly connected to the rear side of the outer surface of the mounting frame, a cavity is formed in the inner side of the buffer box, through holes are formed in the upper side and the lower side of the outer surface of the buffer box, and a buffer assembly is arranged on the inner side of the cavity and used for storing and buffering electrode wires; the buffer assembly comprises a movable groove formed in the inner surface of the cavity, and the inner surface of the movable groove is slidably connected with a buffer roller. Through the arrangement of the buffer assembly, when the electrode wire is accidentally pulled, the pulling force borne by the electrode wire can be buffered and absorbed, and the dragging force borne by the electrode plate can be effectively reduced, so that the electrode plate can be always in a stable state, and the probability that the electrode plate falls off and loosens under the action of external force is reduced; and therefore, the fixing stability and safety of the electrode plate can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of electrode fixing equipment, and more particularly to a fixing equipment for intracranial electrodes after implantation. Background Art

[0002] Intracranial electrodes are multi-contact electrodes made of special materials. They can be implanted in the skull for a short period of time to directly record the electrical activity of the cerebral cortex. As an important medical tool, they can eliminate the influence of structures such as the scalp, skull, and dura mater on the recording of brain electrical activity to the greatest extent possible, helping doctors to diagnose and treat neurological diseases more accurately. They are particularly important in the diagnosis and treatment of epilepsy.

[0003] After implantation, intracranial electrodes need to be stably maintained in a predetermined position. Traditional intracranial electrode fixation methods usually use gauze and bandages to fix them. For example, Chinese patent publication number CN213249153U discloses a fixation cap for patients with intractable epilepsy who undergo intracranial electrode implantation. The bottom of the cap can be fixed to the patient's mandibular area by a fixing strap at the bottom, and the tightness can be adjusted. The electrode fixing mechanism can fix the electrode wire together to prevent the electrode from loosening or slipping. The tightness of the electrode fixing mechanism can be adjusted as needed to avoid pressure damage caused by excessive compression of the electrode.

[0004] Although the existing intracranial implant electrode fixing device can have a certain fixing effect on the electrode when in use, when the patient turns over or moves unexpectedly during use, the electrode wire can easily be entangled on the surface of the bed armrest, thereby causing accidental pulling of the electrode wire. When the electrode wire is pulled by external force, it is easy to cause the electrode plate to change position. Since the electrode is implanted in the patient's skull, the position change of the electrode plate will not only cause damage to the patient's head, but also affect the monitoring accuracy of the electrode plate, thereby affecting the treatment effect of neurological diseases. Summary of the invention

[0005] In view of the problem in the prior art that the electrode plate fixing device cannot buffer the traction force when the electrode wire is pulled, the purpose of the present invention is to provide a fixing device after intracranial electrode implantation.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A fixation device after intracranial electrode implantation, comprising a mounting frame, a buffer box is fixedly connected to the rear side of the outer surface of the mounting frame, a cavity is opened inside the buffer box, through holes are opened on both the upper and lower sides of the outer surface of the buffer box, a buffer component is arranged inside the cavity, and the buffer component is used to store and buffer the electrode wire;

[0008] The buffer assembly includes a movable groove opened on the inner surface of the cavity, a buffer roller is slidably connected to the inner surface of the movable groove, a spring is fixedly connected to the inner surface of the movable groove, one end of the spring away from the movable groove is in contact with the outer surface of the buffer roller, and a guide roller is rotatably connected to the inner surface of the cavity. The outer surfaces of the buffer roller and the guide roller are respectively in rotational contact with the electrode wire, and the electrode wire passes through the through hole to the outside of the buffer box.

[0009] Optionally, the movable grooves are in two groups and are distributed in parallel, the guide rollers are in two groups and correspond to the positions of the through holes respectively, and the electrode wires are distributed in a U shape inside the buffer box.

[0010] Optionally, a clamping assembly is provided on the upper side of the buffer box, and the clamping assembly includes a spiral sleeve 1 fixedly connected to the outer surface of the upper end of the buffer box, and the inner surface of the spiral sleeve 1 is spirally connected to the spiral sleeve 2, and the spiral sleeve 1 and the spiral sleeve 2 are both located on the outside of the through hole, and the outer surface of the upper end of the buffer box is located on the inner side of the spiral sleeve 2 and is fixedly connected to a fixing frame.

[0011] Optionally, the outer surface of the fixed frame is fixedly connected to a core shaft, the outer surface of the core shaft is rotatably connected to a movable frame, the movable frame is in an L-shaped structure, the outer surface of the movable frame close to the electrode wire is fixedly connected to a contact plate, the contact plate is in an arc shape, the outer surface of the contact plate is in close contact with the outer surface of the electrode wire, the number of the contact plates is two groups and they are symmetrically distributed on both sides of the through hole, and the outer surface of the second lower end of the spiral sleeve is in rotational contact with the outer surface of the movable frame.

[0012] Optionally, a through groove is provided on the upper side of the outer surface of the mounting frame, ventilation holes are provided on the front and rear sides of the through groove respectively, a notch is provided on the lower side of the outer surface of the mounting frame, a strap is fixedly connected to the inner side of the notch on the outer surface of the mounting frame, and a traction strip is fixedly connected to the upper side of the outer surface of the strap.

[0013] Optionally, the upper end of the traction strip is fixedly connected to the outer surface of the mounting frame, the number of the notches, straps and traction strips are two groups, the outer surfaces of the two groups of traction strips are provided with mounting grooves, the traction strips are made of elastic material, the inner surface of the mounting frame is fixedly connected to a bladder, and the outer surface of the lower end of the bladder is fixedly connected to a catheter.

[0014] Optionally, an adjustment component is provided between the two groups of straps, and the adjustment component includes an adjustment plate 2 fixedly connected to one of the groups of straps, a mounting sleeve is slidably connected to the outer surface of the adjustment plate 2, and the mounting sleeve is in the shape of a hollow rectangular parallelepiped, and an adjustment plate 1 is fixedly connected to the outer surface of the other group of straps, and the adjustment plate 1 and the adjustment plate 2 are both in an L-shaped structure.

[0015] Optionally, the outer surface of the mounting sleeve is rotatably connected to a coupling shaft, the outer surface of the coupling shaft is located inside the mounting sleeve and is fixedly connected to a friction wheel, the upper and lower outer surfaces of the friction wheel are respectively in rotational contact with the outer surfaces of the second adjustment plate and the first adjustment plate, the coupling shaft is fixedly connected to one end away from the friction wheel with a knob, the outer surface of the coupling shaft is spirally connected to a locking sleeve, the outer surface of the adjusting plate one is provided with a sliding groove, and the coupling shaft is in rotational contact with the adjusting plate one through the sliding groove.

[0016] Optionally, a traction assembly is provided on the outside of the mounting frame, and the traction assembly includes a guide plate fixedly connected to the outer surface of the upper end of the mounting frame, a guide groove is provided on the outer surface of the upper end of the guide plate, a connecting seat is slidably connected to the inner side of the guide groove, a movable sleeve is fixedly connected to the upper end of the connecting seat, the movable sleeve is provided on the outside of the electrode line, and an electrode plate is fixedly connected to the upper end of the electrode line.

[0017] Optionally, a positioning groove is embedded on the inner side of the connecting seat, a positioning rod is slidably connected to the inner side of the positioning groove, an elastic plate is fixedly connected to the inner surface of the positioning groove, the elastic plate is in a U-shaped structure, the outer surface of the elastic plate is fixedly connected to the positioning rod, a slot is provided on the outer surface of the positioning rod, a push rod is embedded on the inner side of the connecting seat and slidably connected, the outer surface of the lower end of the push rod is in contact with the inner wall of the guide groove, and the outer surface of the positioning rod is in sliding contact with the upper end of the push rod.

[0018] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0019] In the above scheme, by providing a buffer component, when the electrode wire is accidentally pulled, the pulling force on the electrode wire can be buffered and absorbed, which can effectively reduce the pulling force on the electrode plate, so that the electrode plate can always be in a stable state, and the probability of the electrode plate falling and loosening due to external force can be reduced, thereby effectively improving the fixing stability and safety of the electrode plate;

[0020] By setting a clamping assembly, the electrode wire is fixedly clamped by two groups of symmetrically distributed contact plates, so that the upper end of the electrode wire can be kept stable. When the electrode wire is pulled by external force, the buffer assembly can not only play a good buffering effect on the pulling force, but also play a stable clamping effect on the electrode wire through the clamping assembly, so that the stability of the electrode plate and the upper electrode wire can be further improved, so that the reliability and safety of the fixed device can be effectively improved during use;

[0021] By setting up a traction component, the movable sleeve is arranged on the outside of the electrode wire to play a certain traction and guiding role on the electrode wire, thereby effectively reducing the risk of the electrode wire being entangled during use, and further reducing the probability of accidental falling of the electrode plate;

[0022] By setting an adjustment component, the distance between the two sets of straps can be adjusted, and the mounting frame can be stably worn on the patient's head through the straps. At the same time, the tightness of the straps can be flexibly adjusted, thereby effectively reducing the discomfort during the wearing of the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 It is a top view of the overall structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 Middle AA section view;

[0027] Figure 4 For the present invention Figure 2 Middle BB section view;

[0028] Figure 5 For the present invention Figure 2 Middle CC section view;

[0029] Figure 6 For the present invention Figure 3 The enlarged schematic diagram at D in the middle;

[0030] Figure 7 For the present invention Figure 4 The enlarged schematic diagram at E in the middle;

[0031] Figure 8 For the present invention Figure 5 Enlarged schematic diagram at F in the middle.

[0032] [Reference Signs]

[0033] 11. Mounting frame; 12. Binding strap; 13. Traction strip; 14. Mounting slot; 15. Air vent; 16. Notch; 17. Through slot; 18. Mounting sleeve; 19. Buffer box; 20. Guide plate; 21. Electrode wire; 22. Electrode plate; 23. Adjustment plate 1; 24. Slide; 25. Adjustment plate 2; 26. Friction wheel; 27. Locking sleeve; 28. Coupling; 29. ​​Knob; 30. Movable sleeve; 31 , guide groove; 32, connecting seat; 33, positioning groove; 34, elastic plate; 35, positioning rod; 36, slot; 37, push rod; 38, capsule; 39, catheter; 40, cavity; 41, buffer roller; 42, movable groove; 43, guide roller; 44, through hole; 45, spiral sleeve one; 46, spiral sleeve two; 47, contact plate; 48, core shaft; 49, fixed frame; 50, movable frame; 51, spring.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 8 As shown, an embodiment of the present invention provides a fixation device after intracranial electrode implantation, including a mounting frame 11, a buffer box 19 is fixedly connected to the rear side of the outer surface of the mounting frame 11, a cavity 40 is opened inside the buffer box 19, through holes 44 are opened on both upper and lower sides of the outer surface of the buffer box 19, a buffer component is arranged inside the cavity 40, and the buffer component is used to receive and buffer the electrode wire 21;

[0041] The buffer assembly includes a movable groove 42 opened on the inner surface of the cavity 40, the inner surface of the movable groove 42 is slidably connected to a buffer roller 41, the inner surface of the movable groove 42 is fixedly connected to a spring 51, the end of the spring 51 away from the movable groove 42 is in contact with the outer surface of the buffer roller 41, the inner surface of the cavity 40 is rotatably connected to a guide roller 43, the outer surfaces of the buffer roller 41 and the guide roller 43 are respectively in rotational contact with the electrode wire 21, and the electrode wire 21 passes through the through hole 44 to the outside of the buffer box 19.

[0042] The movable grooves 42 are in two groups and are distributed in parallel. The guide rollers 43 are in two groups and correspond to the positions of the through holes 44 respectively. The electrode wires 21 are distributed in a U shape inside the buffer box 19 , and the upper ends of the electrode wires 21 are fixedly connected to the electrode plates 22 .

[0043] By adopting the above technical solution, after the electrode plate 22 is implanted in the patient's skull, the mounting frame 11 is covered on the patient's head, and the buffer box 19 is fixedly supported by the mounting frame 11, and then the lower end of the electrode wire 21 is first passed through the through hole 44 on the upper side of the buffer box 19, and then the electrode wire 21 is rotated and extended by the buffer roller 41 and the guide roller 43, and then passes through the through hole 44 on the lower side of the buffer box 19 to the outside, and the guide roller 43 and the buffer roller 41 can make the electrode wire 21 distributed in a U shape inside the cavity 40, so that part of the electrode wire 21 can be stored inside the cavity 40, and then the lower end of the electrode wire 21 is electrically connected to the treatment equipment, and the electrode plate 22 sends out an electric pulse signal to treat the patient. When the patient accidentally pulls the electrode wire 21 during activities and turning over, the electrode wire 21 drives the buffer roller 41 to slide to the side of the guide roller 43 under the action of the tension, and the movable groove 42 inside the cavity 40 can guide the movement of the buffer roller 41. As the distance between the buffer roller 41 and the guide roller 43 gradually decreases, the electrode wire 21 wound on the surface of the buffer roller 41 and the guide roller 43 can be released, so that the pulling force on the electrode wire 21 can be buffered and offset, thereby reducing the electrode wire 21 from transmitting the pulling force to the upper electrode plate 22. When the buffer roller 41 moves toward the guide roller 43, it squeezes the spring 51, and the elastic force of the spring 51 can further buffer and absorb the pulling force on the electrode wire 21, so that the electrode plate 22 can remain stable in the skull. By setting a buffer component, when the electrode wire 21 is accidentally pulled, the pulling force on the electrode wire 21 can be buffered and absorbed, which can effectively reduce the pulling force on the electrode plate 22, so that the electrode plate 22 can always be in a stable state, reducing the probability of the electrode plate 22 falling and loosening due to external force, thereby effectively improving the fixing stability and safety of the electrode plate 22.

[0044] like Figure 5 and Figure 8 As shown, a clamping assembly is provided on the upper side of the buffer box 19, and the clamping assembly includes a spiral sleeve 45 fixedly connected to the outer surface of the upper end of the buffer box 19, and the inner surface of the spiral sleeve 45 is spirally connected to the spiral sleeve 2 46, and the spiral sleeve 1 45 and the spiral sleeve 2 46 are both located on the outside of the through hole 44, and the outer surface of the upper end of the buffer box 19 is located inside the spiral sleeve 2 46 and is fixedly connected to a fixing frame 49.

[0045] The outer surface of the fixed frame 49 is fixedly connected to the core shaft 48, and the outer surface of the core shaft 48 is rotatably connected to the movable frame 50. The movable frame 50 is L-shaped. The outer surface of the movable frame 50 is fixedly connected to the side close to the electrode wire 21. The contact plate 47 is arc-shaped. The outer surface of the contact plate 47 is in close contact with the outer surface of the electrode wire 21. There are two groups of contact plates 47 which are symmetrically distributed on both sides of the through hole 44. The outer surface of the lower end of the spiral sleeve 46 is in rotatable contact with the outer surface of the movable frame 50.

[0046] By adopting the above technical solution, when the electrode wire 21 enters the buffer box 19 through the upper through hole 44, the electrode wire 21 will pass through the middle of the spiral sleeve 2 46. In order to keep the electrode wire 21 between the buffer box 19 and the electrode plate 22 stable, a clamping assembly is provided. After the electrode plate 22 is placed in place, the operator rotates the spiral sleeve 2 46, and the spiral sleeve 2 46 is connected to the spiral sleeve 1 45 through a spiral transmission. The spiral sleeve 2 46 will move upward synchronously during the rotation process. At this time, as the spiral sleeve 2 46 gradually moves upward, the buffer box 19 fixes and supports the mandrel 48 through the fixed frame 49, and supports the movable frame 50 through the mandrel 48, so that the movable frame 50 can rotate with the mandrel 48. In order to rotate at the fulcrum, the movable frame 50 will gradually flip to the side of the electrode wire 21 under the action of the gravity of the contact plate 47, so that the contact plate 47 is tightly fitted to the outside of the electrode wire 21, and the electrode wire 21 is fixedly clamped by two groups of symmetrically distributed contact plates 47, so that the upper end of the electrode wire 21 can be kept stable. When the lower side of the electrode wire 21 is pulled by external force, the pulling force can be well buffered by the buffer component, and the electrode wire 21 can be stably clamped by the clamping component, so as to further improve the stability of the electrode plate 22 and the upper electrode wire 21, thereby effectively improving the reliability and safety of the fixed equipment during use.

[0047] like Figure 1 , Figure 2 and Figure 4 As shown, a through groove 17 is provided on the upper side of the outer surface of the mounting frame 11, and ventilation holes 15 are respectively provided on the front and rear sides of the through groove 17 on the outer surface of the mounting frame 11, and a notch 16 is provided on the lower side of the outer surface of the mounting frame 11, and a strap 12 is fixedly connected to the inner side of the notch 16 on the outer surface of the mounting frame 11, and a traction strip 13 is fixedly connected to the upper side of the outer surface of the strap 12.

[0048] The upper end of the traction strip 13 is fixedly connected to the outer surface of the mounting frame 11, and the number of the notches 16, the straps 12, and the traction strips 13 are all two groups. The outer surfaces of the two groups of traction strips 13 are provided with mounting grooves 14. The traction strips 13 are made of elastic material. The inner surface of the mounting frame 11 is fixedly connected to a bladder 38, and the outer surface of the lower end of the bladder 38 is fixedly connected to a catheter 39.

[0049] By adopting the above technical solution, the through grooves 17 and the air holes 15 on the surface of the mounting frame 11 can effectively reduce the overall weight of the mounting device, thereby effectively improving the comfort of the mounting frame 11 during wearing and use. At the same time, the mounting frame 11 is made of lightweight materials, and the through grooves 17 and the air holes 15 can ensure the air flow inside and outside the mounting frame 11, thereby reducing the probability of the temperature of the patient's head rising due to wearing the mounting frame 11. When the mounting frame 11 is worn, the mounting frame 11 is tied and fixed by two sets of straps 12. The straps 12 have good ductility and can be elastically deformed to a certain extent, so that the mounting frame 11 can adapt to different head shapes. The traction strips between the mounting frame 11 and the straps 12 are 13 can provide a certain traction and support effect on the strap 12, and can also improve the overall structural strength of the fixing device. The mounting groove 14 on the surface of the traction strip 13 can facilitate the clamping and fixing of other therapeutic devices, thereby effectively improving the functionality of the fixing device. After the mounting frame 11 is worn, the operator can inject an appropriate amount of air into the capsule 38 through a syringe to make the airbag produce a certain degree of elastic deformation. The expansion of the capsule 38 can fill the space between the patient's head and the mounting frame 11, so that the pressure between the mounting frame 11 and the patient's head is maintained within an appropriate range, thereby improving the stability of the mounting frame 11 during wearing, thereby further reducing the probability of accidental falling of the mounting frame 11 during wearing.

[0050] like Figure 3 , Figure 5 and Figure 6 As shown, an adjustment component is arranged between the two groups of the straps 12, and the adjustment component includes an adjustment plate 25 fixedly connected to one of the groups of straps 12, and a mounting sleeve 18 is slidably connected to the outer surface of the adjustment plate 25, and the mounting sleeve 18 is in the shape of a hollow rectangular parallelepiped, and an adjustment plate 1 23 is fixedly connected to the outer surface of the other group of straps 12, and the adjustment plate 1 23 and the adjustment plate 2 25 are both in an L-shaped structure.

[0051] The outer surface of the mounting sleeve 18 is rotatably connected with a coupling 28, and the outer surface of the coupling 28 is located inside the mounting sleeve 18 and is fixedly connected with a friction wheel 26, and the upper and lower sides of the outer surface of the friction wheel 26 are respectively in rotational contact with the outer surfaces of the adjusting plate 2 25 and the adjusting plate 1 23, and the coupling 28 is fixedly connected with a knob 29 at one end away from the friction wheel 26, and the outer surface of the coupling 28 is spirally connected with a locking sleeve 27, and the outer surfaces of the adjusting plate 1 23 and the adjusting plate 25 are both provided with sliding grooves 24, and the coupling 28 is in rotational contact with the adjusting plate 1 23 and the adjusting plate 25 through the sliding grooves 24.

[0052] By adopting the above technical solution, when the fixing device is worn, the adjusting plates 1 23 and the adjusting plates 2 25 at both ends of the two sets of straps 12 are respectively inserted into the mounting sleeve 18, and then the locking sleeve 27 is twisted toward the side of the knob 29 to contact the locking sleeve 27 to lock and fix the connecting shaft 28. Then the operator drives the connecting shaft 28 to rotate through the knob 29, and the connecting shaft 28 will drive the friction wheel 26 to rotate synchronously. During the rotation process, the friction wheel 26 will drive the adjusting plates 1 23 and the adjusting plates 2 25 to move towards each other under the action of friction force. The friction wheel 26 surface can effectively increase the friction between the friction wheel 26 and the adjusting plates 1 23 and the adjusting plates 2 25 by providing anti-skid grooves 24. The two sets of straps 12 are driven downward by the adjusting plates 1 23 and the adjusting plates 2 25, so that the two sets of straps 12 To tighten and fix, the adjusting plate 1 23 and the adjusting plate 2 25 slide in contact with the connecting shaft 28 through the slide groove 24 on their surfaces during the movement. When the adjusting plate 1 23 and the adjusting plate 25 are moved to the appropriate position, the locking sleeve 27 is twisted in the opposite direction. The locking sleeve 27 is connected to the connecting shaft 28 through a spiral transmission. During the rotation, the locking sleeve 27 will conflict with the surface of the mounting sleeve 18, so that the connecting shaft 28 can be fixed by the locking sleeve 27, so that the connecting shaft 28 remains in a stable state. By setting the adjustment component to adjust the distance between the two groups of straps 12, the mounting frame 11 can be stably worn on the patient's head through the straps 12, and the tightness of the straps 12 can be flexibly adjusted, thereby effectively improving the comfort of the mounting frame 11 during wearing.

[0053] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, a traction assembly is provided on the outside of the mounting frame 11, and the traction assembly includes a guide plate 20 fixedly connected to the outer surface of the upper end of the mounting frame 11, a guide groove 31 is provided on the outer surface of the upper end of the guide plate 20, a connecting seat 32 is slidably connected to the inner side of the guide groove 31, a movable sleeve 30 is fixedly connected to the upper end of the connecting seat 32, and the movable sleeve 30 is sleeved on the outside of the electrode line 21.

[0054] A positioning groove 33 is embedded on the inner side of the connecting seat 32, and a positioning rod 35 is slidably connected to the inner side of the positioning groove 33. An elastic plate 34 is fixedly connected to the inner surface of the positioning groove 33. The elastic plate 34 is a U-shaped structure. The outer surface of the elastic plate 34 is fixedly connected to the positioning rod 35. A clamping groove 36 is formed on the outer surface of the positioning rod 35. A push rod 37 is embedded and slidably connected to the inner side of the connecting seat 32. The outer surface of the lower end of the push rod 37 is in contact with the inner wall of the guide groove 31, and the outer surface of the positioning rod 35 is in sliding contact with the upper end of the push rod 37.

[0055] By adopting the above technical solution, the mounting frame 11 supports the guide plate 20, the guide plate 20 slides and guides the connecting seat 32 through the guide groove 31 and supports the movable sleeve 30 through the connecting seat 32, and the movable sleeve 30 is sleeved on the outside of the electrode wire 21 to play a certain traction and guiding role on the electrode wire 21, thereby effectively reducing the risk of the electrode wire 21 being entangled during use, and further reducing the probability of accidental falling of the electrode plate 22. The operator can adjust the position of the movable sleeve 30 according to the installation position of the electrode plate 22, so that the movable sleeve 30 corresponds to the installation position of the electrode plate 22. When adjusting the position of the connecting seat 32, the operator presses the positioning rod 35 to slide the positioning rod 35 into the positioning groove 33 The elastic plate 34 inside the positioning groove 33 is squeezed, and when the slot 36 on the surface of the positioning rod 35 moves to the upper side of the push rod 37, the squeezing force of the positioning rod 35 on the push rod 37 is released. At this time, the squeezing force between the push rod 37 and the guide groove 31 is also reduced. At this time, after the operator moves the connecting seat 32 along the guide groove 31 to the appropriate position, the operator releases the positioning rod 35. At this time, the positioning rod 35 moves in the opposite direction and resets under the elastic force of the elastic plate 34. The surface of the positioning rod 35 will contact the lower end of the push rod 37. Under the squeezing force of the positioning rod 35, the lower end of the push rod 37 will be squeezed and contacted with the inner wall of the guide groove 31, so that the connecting seat 32 can be limited by the friction force between the push rod 37 and the guide groove 31, so that the position of the connecting seat 32 remains stable.

[0056] The specific working process of the technical solution provided by the present invention is as follows:

[0057] After the electrode plate 22 is implanted into the patient's skull, the mounting frame 11 is covered on the patient's head, and the two sets of straps 12 are driven downward by the adjustment plate 1 23 and the adjustment plate 2 25, so that the two sets of straps 12 are tightened and fixed. The through grooves 17 and the air holes 15 on the surface of the mounting frame 11 can effectively reduce the overall weight of the mounting device, thereby effectively improving the comfort of the mounting frame 11 during wearing and use. After the mounting frame 11 is worn, the operator can inject an appropriate amount of air into the balloon 38 through a syringe to make the airbag produce a certain degree of elastic deformation. The expansion of the airbag can fill the space between the patient's head and the mounting frame 11, so that the pressure between the mounting frame 11 and the patient's head is maintained within an appropriate range. The movable frame 50 will gradually move to the side of the electrode line 21 under the action of the gravity of the contact plate 47. The electrode wire 21 is flipped so that the contact plate 47 fits tightly against the outside of the electrode wire 21. The electrode wire 21 is fixedly clamped by two groups of symmetrically distributed contact plates 47, so that the upper end of the electrode wire 21 can be kept stable. When the electrode wire 21 is pulled by an external force, the electrode wire 21 drives the buffer roller 41 to slide toward the side of the guide roller 43 under the action of the tension. As the distance between the buffer roller 41 and the guide roller 43 gradually decreases, the electrode wire 21 wound on the surface of the buffer roller 41 and the guide roller 43 can be released, so that the pulling force on the electrode wire 21 can be buffered and offset, so as to reduce the transmission of the tension from the electrode wire 21 to the upper electrode plate 22, so that the electrode plate 22 can always be in a stable state, and the probability of the electrode plate 22 falling and loosening due to the action of external force is reduced.

[0058] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fixation device for intracranial electrode implantation, comprising a mounting frame, characterized in that: A buffer box is fixedly connected to the rear side of the outer surface of the mounting frame, a cavity is opened inside the buffer box, through holes are opened on both the upper and lower sides of the outer surface of the buffer box, a buffer assembly is arranged inside the cavity, and the buffer assembly is used to store and buffer the electrode wire; The buffer assembly includes a movable groove opened on the inner surface of the cavity, a buffer roller is slidably connected to the inner surface of the movable groove, a spring is fixedly connected to the inner surface of the movable groove, one end of the spring away from the movable groove is in contact with the outer surface of the buffer roller, and a guide roller is rotatably connected to the inner surface of the cavity. The outer surfaces of the buffer roller and the guide roller are respectively in rotational contact with the electrode wire, and the electrode wire passes through the through hole to the outside of the buffer box.

2. The fixation device after intracranial electrode implantation according to claim 1, characterized in that: The movable grooves are in two groups and are distributed in parallel, the guide rollers are in two groups and correspond to the positions of the through holes respectively, and the electrode wires are distributed in a U shape inside the buffer box.

3. The fixation device after intracranial electrode implantation according to claim 2, characterized in that: A clamping assembly is arranged on the upper side of the buffer box, and the clamping assembly includes a spiral sleeve 1 fixedly connected to the outer surface of the upper end of the buffer box, and the inner surface of the spiral sleeve 1 is spirally connected to the spiral sleeve 2, and the spiral sleeve 1 and the spiral sleeve 2 are both located on the outside of the through hole, and the outer surface of the upper end of the buffer box is located inside the spiral sleeve 2 and is fixedly connected to a fixing frame.

4. The fixation device after intracranial electrode implantation according to claim 3, characterized in that: The outer surface of the fixed frame is fixedly connected to a core shaft, and the outer surface of the core shaft is rotatably connected to a movable frame. The movable frame is in an L-shaped structure. The outer surface of the movable frame close to the electrode line is fixedly connected to a contact plate, and the contact plate is in an arc shape. The outer surface of the contact plate is in close contact with the outer surface of the electrode line. There are two groups of contact plates and they are symmetrically distributed on both sides of the through hole. The outer surfaces of the second lower ends of the spiral sleeve are in rotatable contact with the outer surface of the movable frame.

5. The fixation device after intracranial electrode implantation according to claim 4, characterized in that: A through groove is provided on the upper side of the outer surface of the mounting frame, and ventilation holes are provided on the front and rear sides of the through groove respectively. A notch is provided on the lower side of the outer surface of the mounting frame, and a strap is fixedly connected to the inner side of the notch on the outer surface of the mounting frame, and a traction strip is fixedly connected to the upper side of the outer surface of the strap.

6. The fixation device after intracranial electrode implantation according to claim 5, characterized in that: The upper end of the traction strip is fixedly connected to the outer surface of the mounting frame, the number of the notches, straps and traction strips are two groups, the outer surfaces of the two groups of traction strips are provided with mounting grooves, the traction strips are made of elastic material, the inner surface of the mounting frame is fixedly connected to a bladder, and the outer surface of the lower end of the bladder is fixedly connected to a catheter.

7. The fixation device after intracranial electrode implantation according to claim 6, characterized in that: An adjustment component is arranged between the two groups of straps, and the adjustment component includes an adjustment plate 2 fixedly connected to one of the groups of straps, a mounting sleeve is slidably connected to the outer surface of the adjustment plate 2, and the mounting sleeve is in the shape of a hollow rectangular parallelepiped, and an adjustment plate 1 is fixedly connected to the outer surface of the other group of straps, and the adjustment plate 1 and the adjustment plate 2 are both in an L-shaped structure.

8. The fixation device after intracranial electrode implantation according to claim 7, characterized in that: The outer surface of the mounting sleeve is rotatably connected with a coupling shaft, and the outer surface of the coupling shaft is fixedly connected with a friction wheel located inside the mounting sleeve, and the upper and lower sides of the outer surface of the friction wheel are respectively in rotational contact with the outer surfaces of the second adjusting plate and the first adjusting plate, and the coupling shaft is fixedly connected with a knob at one end away from the friction wheel, and a locking sleeve is spirally connected to the outer surface of the coupling shaft, and a sliding groove is provided on the outer surface of the first adjusting plate, and the coupling shaft is in rotational contact with the first adjusting plate through the sliding groove.

9. The fixation device after intracranial electrode implantation according to claim 8, characterized in that: A traction assembly is arranged on the outside of the mounting frame, and the traction assembly includes a guide plate fixedly connected to the outer surface of the upper end of the mounting frame, a guide groove is provided on the outer surface of the upper end of the guide plate, a connecting seat is slidably connected to the inner side of the guide groove, a movable sleeve is fixedly connected to the upper end of the connecting seat, the movable sleeve is arranged on the outside of the electrode line, and an electrode plate is fixedly connected to the upper end of the electrode line.

10. The fixation device after intracranial electrode implantation according to claim 9, characterized in that: A positioning groove is embedded on the inner side of the connecting seat, a positioning rod is slidably connected to the inner side of the positioning groove, an elastic plate is fixedly connected to the inner surface of the positioning groove, the elastic plate is in a U-shaped structure, the outer surface of the elastic plate is fixedly connected to the positioning rod, a clamping groove is provided on the outer surface of the positioning rod, a push rod is embedded on the inner side of the connecting seat and slidably connected, the outer surface of the lower end of the push rod is in contact with the inner wall of the guide groove, and the outer surface of the positioning rod is in slidable contact with the upper end of the push rod.

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