A skull fixation device for neurosurgical craniocerebral surgery

Abstract

This invention provides a skull fixation device for neurosurgical craniocerebral surgery, belonging to the field of neurosurgery. It includes a first side frame and a second side frame that slide through each other. The bottom of the first side frame is connected to a universal adjustment frame, and a limiting bolt for limiting the second side frame is threaded through one side of the first side frame. It also includes: a positioning cylinder with two parts respectively fixed to the top ends of the first and second side frames; a connecting cylinder with sliding protrusions at both its top and bottom for sliding adjustment within the positioning cylinder via a sliding groove; locking elements distributed on both sides inside the connecting cylinder; and a driving element located at one end of the connecting cylinder for driving the locking elements to lock the sliding protrusions within the positioning cylinder. This application, through the cooperation of the positioning cylinder and the connecting cylinder, allows the positioning head to slide back and forth within the sliding groove by rotating the connecting cylinder, meeting the need for rapid approach or departure from the positioning area, thus realizing the operation of quickly finding the positioning area and achieving final positioning.

Description

Technical Field

[0001] This invention relates to the field of neurosurgery, and more specifically, to a cranial fixation device for neurosurgical craniocerebral surgery. Background Technology

[0002] Neurosurgery is a branch of surgery that, based on surgery as the primary treatment method, applies unique neurosurgical research methods to study the human nervous system, such as the brain, spinal cord, and peripheral nervous system, as well as related accessory structures such as the skull, scalp, cerebral blood vessels, and meninges. It investigates the causes and pathogenesis of diseases such as epilepsy, Parkinson's disease, and neuralgia, and explores new diagnostic, treatment, and preventive technologies.

[0003] Currently, in the diagnosis and treatment of neurosurgery, some patients require surgery for a cure. During surgery, head fixation is particularly important, thus cranial fixation devices for neurosurgical craniocerebral surgery are frequently used. Most existing cranial fixation devices consist of a frame and threaded fixation pins. By rotating the fixation pins on the frame, one end is anchored to the surface of the skull, achieving stable fixation. However, this rotational fixation method has been found to have certain drawbacks in practical application:

[0004] 1. Because different patients have different skull sizes, when installing the frame, in order to protect the skin around the skull to be fixed, the fixing range of the frame is usually larger than the actual size of the patient's skull. This means that in the actual positioning process, it is necessary to rotate the fixing pin for a long time to make one end reach the area to be fixed, which is quite cumbersome. At the same time, after fixing, the removal of the fixing pin also requires multiple rotations to make one end detach from the skull and achieve the overall disassembly of the frame.

[0005] 2. Since the specific fixation position of the skull needs to be tested repeatedly, it is necessary to frequently rotate the fixation pin to bring it closer to the area to be fixed. If it does not work, rotate it in the opposite direction to move it away, and then rotate it to bring it into contact with the next area to be fixed. Repeat this process until a suitable fixation position is found.

[0006] Therefore, the traditional method of adjusting the position of the fixation pin by simply rotating a spiral reduces the efficiency of fixation for medical staff and is quite cumbersome. To address this, a skull fixation device for neurosurgical craniocerebral surgery is proposed. Summary of the Invention

[0007] To address the cumbersome operation of rotating and positioning fixation pins in existing technologies, the present invention aims to provide a skull fixation device for neurosurgical craniocerebral surgery.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A cranial fixation device for neurosurgical craniocerebral surgery includes a first side frame and a second side frame that slide through each other. The bottom of the first side frame is connected to a universal adjustment bracket. A limiting bolt for limiting the second side frame is threaded through one side of the first side frame. The device also includes:

[0010] The positioning cylinder has two parts that are respectively fixed to the top of side frame one and side frame two;

[0011] The connecting cylinder has sliding protrusions at its top and bottom for sliding adjustment within the positioning cylinder via a sliding groove;

[0012] Locking components are located on both sides inside the connecting cylinder;

[0013] A driving component, located at one end of the connecting cylinder, is used to drive the locking component to form a sliding protrusion that locks the positioning cylinder.

[0014] The connecting cylinder also includes a positioning element, and the sliding drive element can also cause the positioning element to be rotated and extended to fix the skull.

[0015] Optionally, the chute includes two strip grooves opened opposite each other on both sides of the inside of the positioning cylinder and an insertion groove located outside the strip grooves.

[0016] Optionally, the connecting cylinder includes a first cylinder and a second cylinder, the first cylinder and the second cylinder together form a cavity, one end of the first cylinder and the second cylinder are fastened together to an end cap one, and the other end is threaded together to an end cap two, and magnetic suction elements are provided on both sides of the end cap one.

[0017] The top and bottom of the first and second cylinders are also provided with movable cavities that are isolated from the main body;

[0018] The locking element is located within the space formed by the two corresponding movable cavities.

[0019] Optionally, the locking element includes a support plate fixed in the movable cavity, a movable plate disposed on one side of the support plate and sliding inside the movable cavity, and a first spring connecting the support plate and the movable plate;

[0020] On the other side of the support plate, a movable column that can slide inside the movable cavity is connected by a second spring. A positioning column is fixed at the outer end of the movable column, and a through hole is opened on the surface of the support plate for the positioning column to pass through and abut against the surface of the movable plate.

[0021] The surface of the movable disc is fixed with a positioning buckle. Under the action of the first spring, the positioning buckle can protrude outward from the movable cavity and engage with the buckle groove in the strip groove to lock the connecting cylinder.

[0022] Optionally, the locking element further includes a transmission rod disposed within the movable cavity and connected to the movable column;

[0023] One end of the transmission rod is connected to an upper triangular block, and the other end is slidably connected to a telescopic rod.

[0024] Optionally, the positioning component includes a push plate slidably disposed inside the cavity, a rotating plate movably connected to one side of the push plate, and a hexagonal connector connected to the surface of the rotating plate;

[0025] The other side of the push plate is connected to a push arm, one end of which extends outside the cavity and is fitted with a positioning head;

[0026] The cavity is also fixed with a limiting ring, which restricts the trajectory of the propulsion disk sliding inside the cavity.

[0027] Optionally, one end of the telescopic rod extends into the interior of the cavity to form a corner.

[0028] The corner portion is located inside the push arm, and a locking head extends outward from one end of the corner portion located inside the push arm.

[0029] The positioning head has a locking groove inside that matches the locking head. Under normal conditions, the locking head is located inside the push arm due to the elastic force of the second spring.

[0030] Optionally, the driving component includes a push screw that is threadedly connected to the end cover, the push screw having an internal hexagonal groove adapted to the hexagonal connector on the side facing the hexagonal connector, and a return spring being sleeved on the surface of the push screw;

[0031] One end of the return spring is connected to the surface of the rotating disk, and the other end is engaged with the end cover.

[0032] Optionally, each end of the end cap is connected to a support rod at both ends of its side, and a lower triangular block that matches the upper triangular block is fixed at one end of the support rod.

[0033] Optionally, the insertion groove and the strip groove are arranged at a 90-degree angle.

[0034] Furthermore, the strip groove is interconnected with multiple corresponding insertion grooves.

[0035] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0036] In the above scheme, the positioning cylinder and the connecting cylinder work together to rotate the connecting cylinder inside the chute to achieve the forward and backward sliding of the positioning head, so as to meet the need to quickly approach or move away from the positioning area, and realize the operation of quickly finding the positioning area and finally positioning.

[0037] By setting the positioning buckle and the buckle groove, the initial limit can be formed after the connecting cylinder slides into the appropriate insertion groove for initial locking. When the sliding drive component cooperates with the connecting cylinder to further drive and position the positioning head, the movable column will abut against the movable plate through the positioning column on it, forming a lock on the positioning buckle. This ensures that when the rotating push screw forms a further precise movement of the positioning head, the connecting cylinder will not rotate relative to the positioning cylinder, thus realizing the rotation of the push screw.

[0038] At the same time, the locking head on the transmission rod will also extend into the corresponding locking groove to quickly fix the positioning head, ensuring a stable connection in the precision adjustment state.

[0039] With the cooperation of the positioning and driving components, after the driving component slides and the locking component connects against the elastic force of the return spring, the internal hexagonal groove will engage with the hexagonal connector to complete the indirect pushing adjustment with the advancement plate and achieve synchronous transmission. At the same time, after the operation is completed, the advancement arm and positioning head can be synchronously reset by the force of the return spring after the driving component and locking component are separated, and quickly move away from the skull fixation area to achieve rapid disassembly after surgery.

[0040] At the same time, the locking components will eventually release the locking of the positioning buckle and the positioning head, realizing the separation and disassembly of the connecting cylinder from the inside of the reset cylinder;

[0041] By using the connecting tube, end cap one and end cap two can be separated after the surgical procedure is completed, allowing the first and second tube bodies to be separated and the internal structure exposed. This facilitates subsequent replacement and maintenance, and also allows the tube to come into full contact with disinfectant, achieving better disinfection and meeting subsequent usage requirements. Attached Figure Description

[0042] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0043] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0044] Figure 2 This is a side view of the structure of the present invention;

[0045] Figure 3 This is a schematic diagram of the positioning cylinder and connecting cylinder structure of the present invention;

[0046] Figure 4 This is a schematic diagram of the disassembled structure of the connecting cylinder of the present invention;

[0047] Figure 5 This is a schematic diagram of the first internal structure of the connecting cylinder of the present invention;

[0048] Figure 6 This is a schematic diagram of the second internal structure of the connecting cylinder of the present invention;

[0049] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0050] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B;

[0051] Figure 9 This is a schematic diagram of the locking component structure of the present invention;

[0052] Figure 10 This is a cross-sectional view of the connecting cylinder structure of the present invention;

[0053] Figure 11 This is a schematic diagram of the exploded structure of the connecting cylinder of the present invention;

[0054] Figure 12 This is a schematic diagram of the positioning cylinder structure of the present invention;

[0055] Figure 13 This is a schematic diagram of the groove structure of the present invention.

[0056] [Figure Labels]

[0057] 1. Side frame one; 2. Side frame two; 3. Universal adjustment bracket; 4. Limit bolt;

[0058] 5. Positioning cylinder; 51. Slide groove; 510. Strip groove; 511. Insertion groove; 512. Snap groove;

[0059] 6. Connecting cylinder; 61. First cylinder body; 62. Second cylinder body; 63. Cavity; 64. Movable cavity; 65. End cap one; 650. Support rod; 651. Lower triangular block; 66. End cap two; 67. Sliding protrusion; 68. Magnetic suction component;

[0060] 7. Locking component; 71. Support plate; 72. Movable plate; 73. First spring; 74. Second spring; 75. Movable column; 76. Positioning column; 77. Positioning buckle; 78. Transmission rod; 780. Upper triangular block; 781. Telescopic rod; 782. Corner part; 783. Locking head;

[0061] 8. Drive component; 81. Propeller screw; 82. Socket hexagonal groove; 83. Return spring;

[0062] 9. Positioning component; 91. Push plate; 92. Rotary plate; 93. Hexagonal connector; 94. Push arm; 95. Positioning head; 950. Locking groove; 96. Limiting ring.

[0063] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0064] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0065] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0066] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0067] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0068] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0069] like Figures 1 to 13 As shown, this embodiment of the invention provides a skull fixation device for neurosurgical craniocerebral surgery, including a side frame 1 and a side frame 2 that slide through each other. The bottom of the side frame 1 is connected to a universal adjustment frame 3, and a limiting bolt 4 for limiting the side frame 2 is threaded through one side of the side frame 1. By sliding the side frame 1 and the side frame 2 to adjust the relative distance between them according to the size of the skull of different patients, the distance between them is adjusted to be larger than the actual size of the skull of the patient. Then, the limiting bolt 4 is rotated to lock and fix the relative position of the side frame 1 and the side frame 2.

[0070] It also includes: a positioning cylinder 5, which has two top ends respectively fixed to side frame 1 and side frame 2; a connecting cylinder 6, which has sliding protrusions 67 at both the top and bottom for sliding adjustment within the positioning cylinder 5 via sliding grooves 51; locking members 7, which are distributed on both sides inside the connecting cylinder 6; and a driving member 8, which is located at one end of the connecting cylinder 6 for driving the locking member 7 to form a lock of the sliding protrusions 67 within the positioning cylinder 5. The connecting cylinder 6 also has a positioning member 9, and the sliding driving member 8 can also cause the positioning member 9 to be rotated out to form a fixation on the skull.

[0071] The chute 51 includes two strip grooves 510 that are opened opposite each other on both sides of the inside of the positioning cylinder 5 and an insertion groove 511 located outside the strip grooves 510.

[0072] like Figure 11 , Figure 12 and Figure 13 As shown, sliding the sliding protrusion 67 on the connecting cylinder 6 along the strip groove 510 can adjust its position relative to the positioning cylinder 5, thus adjusting the positioning distance of the positioning component 9. This allows it to quickly approach the skull area to be fixed, which facilitates the operation of frequently changing different skull areas until the final suitable skull area is found. After finding the suitable position, the connecting cylinder 6 can be rotated so that the sliding protrusion 67 slides into the corresponding insertion groove 511 for limiting.

[0073] Similarly, after neurosurgical surgery on the skull, it can slide out of the slot 510 from the insertion slot 511, thereby quickly realizing the sliding of the connecting cylinder 6 and its positioning component 9, so as to meet the disassembly of the positioning component 9 at the patient's skull after surgery, which facilitates practical application.

[0074] like Figure 11 As shown, the connecting cylinder 6 includes a first cylinder 61 and a second cylinder 62. The first cylinder 61 and the second cylinder 62 together form a cavity 63. One end of the first cylinder 61 and the second cylinder 62 are fastened together with an end cap 65, and the other end is threaded together with an end cap 66. Magnetic suction elements 68 are provided on both sides of the end cap 65. Magnetic suction grooves are opened on the surfaces of the first cylinder 61 and the second cylinder 62 at the positions corresponding to the positions of the magnetic suction elements 68.

[0075] After the magnetic 68 is inserted into the surface of the end cap 65, the magnetic 68 can be locked in the magnetic groove by magnetic attraction, thus fixing the first cylinder 61 and the second cylinder 62.

[0076] When the connecting tube 6 is without end cap 65 and end cap 66, it can be separated and disassembled to expose the cavity 63, thereby facilitating the disassembly of its internal structure and also making it easier to clean and disinfect it more thoroughly after neurosurgery.

[0077] When used for actual skull positioning, the first cylinder 61 and the second cylinder 62 are joined together to form a cavity 63. Then, the second end cap 66 is rotated to fix one end of the first cylinder 61 and the second cylinder 62. Then, the first end cap 65 is fastened on it to fix the other end of the first cylinder 61 and the second cylinder 62. Finally, the magnetic suction piece 68 is inserted into the first cylinder 61 and the second cylinder 62 through the first end cap 65 to complete the splicing of the connecting cylinder 6.

[0078] The top and bottom of the first cylinder 61 and the second cylinder 62 are also provided with movable cavities 64 that are isolated from the cavity 63, wherein the locking member 7 is located in the space formed by the two corresponding movable cavities 64.

[0079] The locking element 7 includes a support plate 71 fixed in the movable cavity 64, a movable plate 72 disposed on one side of the support plate 71 and sliding inside the movable cavity 64, and a first spring 73 connecting the support plate 71 and the movable plate 72.

[0080] On the other side of the support plate 71, a movable column 75 that can slide inside the movable cavity 64 is connected by a second spring 74. A positioning column 76 is fixed at the outer end of the movable column 75. The surface of the support plate 71 is provided with a through hole for the positioning column 76 to pass through and abut against the surface of the movable plate 72. A positioning buckle 77 is fixed on the surface of the movable plate 72.

[0081] like Figure 7 As shown, at this time, the driving component 8 does not lock the locking component 7. At this time, the first spring 73 is in its natural state. The first spring 73 in its natural state will give the movable plate 72 an outward resisting force. The movable plate 72, which is resisted, will cause the positioning buckle 77 on it to protrude from the outside of the movable cavity 64 and be exposed outside the sliding protrusion 67. When the connecting cylinder 6 slides in the positioning cylinder 5 to a suitable position and needs to slide into the insertion groove 511 through the strip groove 510 for initial positioning, the sliding protrusion 67 on the positioning cylinder 5 can slide to the end of the insertion groove 511, so that the positioning buckle 77 and the corresponding buckle groove 512 form a locking effect, thereby realizing the initial positioning of the connecting cylinder 6.

[0082] The locking member 7 also includes a transmission rod 78 disposed in the movable cavity 64 and connected to the movable column 75. One end of the transmission rod 78 is connected to an upper triangular block 780, and the other end is slidably connected to a telescopic rod 781. The telescopic rod 781 can slide along its length direction on the surface of the transmission rod 78 without disengaging.

[0083] The positioning component 9 includes a push plate 91 slidably disposed inside the cavity 63, a rotating plate 92 movably connected to one side of the push plate 91, and a hexagonal connector 93 connected to the surface of the rotating plate 92.

[0084] The other side of the push plate 91 is connected to the push arm 94. One end of the push arm 94 extends outside the cavity 63 and is fitted with a positioning head 95. The outer end of the positioning head 95 can be designed in different shapes according to actual usage requirements, while the inner end (the end closer to the push arm 94) has the same shape.

[0085] A limiting ring 96 is also fixed inside the cavity 63. The limiting ring 96 restricts the sliding trajectory of the propulsion disk 91 inside the cavity 63. Figure 6 As shown, due to the action of the limiting ring 96, the propulsion disk 91 can only slide to the right.

[0086] One end of the telescopic rod 781 extends into the cavity 63 and forms a corner portion 782.

[0087] The corner portion 782 is located inside the push arm 94, and a locking head 783 extends outward from one end of the corner portion 782 located inside the push arm 94.

[0088] The positioning head 95 has a locking groove 950 that matches the locking head 783. Under normal conditions, the locking head 783 is located inside the push arm 94 due to the elastic force of the second spring 74.

[0089] The driving component 8 includes a push screw 81 threadedly connected to the end cover 65. The push screw 81 has an internal hexagonal groove 82 adapted to the hexagonal connector 93 on the side facing it. A return spring 83 is sleeved on the surface of the push screw 81. One end of the return spring 83 is connected to the surface of the rotating disk 92, and the other end is engaged with the end cover 65. That is, the inner side of the end cover 65 has a groove that can separate or install the return spring 83. After the end cover 65 is pulled out from one side of the connecting cylinder 6, the return spring 83 will still be connected to the end cover 65 in the engaged state. At this time, the return spring 83 can be manually removed from the corresponding groove to complete the disassembly of the end cover 65 and the return spring 83 (the above-mentioned connection of the return spring 83 to the external structure by engaging is a mature and perfect prior art, which is not further described in this embodiment).

[0090] When the end cap 65 is fastened to the surface of the first cylinder 61 and the second cylinder 62, the return spring 83 is in a naturally extended state.

[0091] Both ends of the end cap 65 are connected to support rods 650, and one end of the support rod 650 is fixed with a lower triangular block 651 that matches the upper triangular block 780.

[0092] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, when the driving component 8 is fastened towards the connecting cylinder 6, the end cap 65 will first fasten to one end of the connecting cylinder 6, and then the magnetic component 68 will fix the end cap 65 to the connecting cylinder 6. During this process, the lower triangular block 651 on the end cap 65 will abut against the corresponding upper triangular block 780. The upper triangular block 780, which is abutted, will drive the transmission rod 78 on it to move outward. During the movement, the transmission rod 78 will drive the movable column 75 on it to slide synchronously towards the positioning buckle 77. The movable column 75 will also drive the positioning column 76 on it to slide. After the lower triangular block 651 completely abuts against the corresponding upper triangular block 780, the positioning column 76 just passes through the support plate 71 and abuts against one side of the movable plate 72.

[0093] Since the movable disc 72 is resisted at this time, it can no longer slide freely inside the movable cavity 64. Therefore, the positioning buckle 77 and the buckle groove 512 on it form a stable lock. At this time, the position between the connecting cylinder 6 and the positioning cylinder 5 will not change relative to each other, ensuring the stability of the subsequent driving component 8 when making precision adjustments.

[0094] During the process of the lower triangular block 651 and the corresponding upper triangular block 780 abutting and driving the transmission rod 78 to move, the transmission rod 78 will drive the corner part 782 on it to move synchronously. In the natural state, the locking head 783 on the corner part 782 is hidden inside the push arm 94. At this time, the positioning head 95 can be replaced at the end of the push arm 94 at will. After the transmission rod 78 and the corner part 782 move, the locking head 783 will extend out of the outside of the push arm 94 and be inserted into the locking groove 950 in the corresponding positioning head 95. At the same time as locking the positioning buckle 77, the positioning head 95 is locked simultaneously.

[0095] After the end cap 65 is fully assembled, the internal hexagonal groove 82 on the push screw 81 is also assembled with the corresponding hexagonal connector 93.

[0096] Then, the screw 81 is rotated on the surface of the end cap 65. Since the above-mentioned adjustment of the position of the connecting cylinder 6 in the slide groove 51 is for testing the final fixation area and for bringing the positioning head 95 close to the area to be fixed, at this time, it is only necessary to rotate the screw 81 slightly so that the positioning head 95 pierces the skin and is fixed to the patient's skull to ensure the stability of the head during neurosurgery. The specific steps are as follows:

[0097] Rotate the push screw 81 to form a threaded engagement with the end cap 65. The push screw 81, under the force, will slide relative to the end cap 65. During the sliding process, the push screw 81 will drive the push plate 91, the push arm 94 and the positioning head 95 to move synchronously through the hexagonal connector 93, thereby fixing the positioning head 95 to the skull surface and completing the head fixation before neurosurgery.

[0098] Since the rotating disk 92 and the advancing disk 91 are rotatable, the advancing screw 81 during the rotation process will not cause the advancing arm 94 and the positioning head 95 on it to rotate synchronously. This ensures that the positioning head 95 is ultimately embedded in the patient's skull rather than screwed into it (the traditional method of using a fixing nail involves spirally piercing the skin and embedding it into the skull surface), which is beneficial for the protection of the fixation area.

[0099] After the neurosurgical operation is completed through the above-mentioned fixation operation, the magnetic suction component 68 is removed, and the end cap 65 is separated from the surface of the connecting cylinder 6, so that the driving component 8 can be removed. After the driving component 8 is removed, the positioning head 95 can be quickly slid back to release the fixation on the patient's skull by the force of the reset spring 83, so as to realize the rapid removal of the device from the skull.

[0100] At the same time, the positioning buckle 77 is also released, and can be quickly slid into the strip groove 510 in the insertion groove 511 to remove the connecting tube 6. The positioning head 95 can also be disassembled at the same time. Compared with the traditional method that requires continuous rotation of the fixing pin to remove it, this effectively improves the efficiency of removing the device after surgery. At the same time, the end cap 66 is removed to expose the internal structure. The entire disassembly is completed at the same time as the device is removed, and thorough cleaning and disinfection can be carried out without secondary disassembly.

[0101] The insertion slot 511 and the strip slot 510 are arranged at a 90-degree angle, and the strip slot 510 and the multiple corresponding insertion slots 511 are interconnected. The arrangement of multiple insertion slots 511 allows for more choices in the position of the connecting cylinder 6 when it slides and adjusts within the positioning cylinder 5. This allows the positioning head 95 to select a position that is infinitely close to the patient's skull, so as to quickly calibrate the positioning area and fix the positioning head 95 to the skull without long-term driving during the actual calibration process.

[0102] The workflow of the technical solution provided by this invention is as follows:

[0103] First, move side frame 1 and side frame 2 to place the positioning head 95 into both sides of the patient's head (a certain amount of space needs to be left between them). Move the connecting cylinder 6 and its positioning head 95 within the strip groove 510 until they approach or touch the area to be fixed. If this area is not suitable, adjust by sliding through the strip groove 510 and the insertion groove 511 until a suitable fixing area is found. During this process, different positioning heads 95 can also be replaced through the surface of the push arm 94 to find the corresponding suitable positioning head 95 (at this time, the positioning head 95...). (5 is not locked by locking head 783). After the adaptation of positioning head 95 is completed, that is, the initial positioning of positioning head 95 with the patient's skull area, the drive component 8 is pushed so that its end cap 65 is fastened to the connecting cylinder 6. After the magnetic suction component 68 is rotated to complete the connection, positioning buckle 77 is locked in the insertion groove 511, locking head 783 is locked in positioning head 95, internal hexagonal groove 82 and hexagonal connector 93 are assembled, and then the push screw 81 is rotated slightly so that positioning head 95 pierces the skin and is directly fixed to the patient's skull surface.

[0104] After the operation, the magnetic suction component 68 is removed. After the disassembly of the drive component 8 is completed, the positioning component 9 can move away from the skull fixation area with the action of the push arm 94, thus completing the quick disassembly of this setting. The end cap 66 is then disassembled, which can expose the structure inside the connecting cylinder 6, allowing for more thorough disinfection and cleaning in the later stages.

[0105] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0106] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A skull fixing device for neurosurgical craniocerebral operation, comprising side frame one and side frame two slidingly penetrating each other, the bottom of the side frame one is connected with a universal adjusting frame, and a limiting bolt for limiting the side frame two is threadedly penetrated on one side of the side frame one, characterized in that: Also include: Positioning cylinder, with two top fixed on the side of the frame and the frame two; Connection cylinder, both top and bottom have sliding convex block for sliding adjustment in the slide groove in the positioning cylinder; Locking member, distributed in both sides of the connection cylinder inside, the locking member includes a support disc fixed in the movable cavity, a movable disc provided on one side of the support disc and sliding in the movable cavity, and a first spring connected between the support disc and the movable disc; the other side of the support disc is connected with a movable column which can slide in the movable cavity through a second spring, the outer end of the movable column is fixed with a positioning column, and the surface of the support disc is provided with a through hole for the positioning column to pass through and abut against the surface of the movable disc; wherein the surface of the movable disc is fixed with a positioning buckle, and the positioning buckle can protrude outward from the movable cavity under the action of the first spring and be engaged with the buckle groove in the strip-shaped groove to complete the locking of the connection cylinder, the locking member further includes a transmission rod provided in the movable cavity and connected with the movable column; wherein one end of the transmission rod is connected with an upper triangular block, and the other end is slidingly connected with an extension rod; The driving member is provided at one end of the connection cylinder for driving the locking member to form the locking of the sliding convex block in the positioning cylinder; Wherein, the connection cylinder also has a positioning member, and the sliding driving member can also make the positioning member rotate and extend to form the fixation to the skull, the positioning member includes a pushing disc slidingly provided in the cavity, a rotating disc movably connected to one side of the pushing disc, and a hexagonal joint connected to the surface of the rotating disc; wherein the other side of the pushing disc is connected with a pushing arm, one end of the pushing arm extends outside the cavity and is sleeved with a positioning head; the cavity is further fixed with a limiting ring, which can limit the sliding track of the pushing disc in the cavity under the action of the limiting ring, one end of the extension rod extends into the cavity to form a corner portion; the corner portion is located inside the pushing arm, and one end of the corner portion located inside the pushing arm extends outwardly to form a locking head; wherein the inside of the positioning head is provided with a locking groove matched with the locking head, and the locking head is located inside the pushing arm under the elastic force of the second spring in the natural state; The driving member includes a pushing screw threadedly connected with the end cover one, the pushing screw is provided with an inner hexagonal groove matched with the hexagonal joint on the side facing the hexagonal joint, and the surface of the pushing screw is sleeved with a reset spring; wherein one end of the reset spring is connected to the surface of the rotating disc, and the other end is engaged with the end cover one; The two ends of the side surface of the end cover one are connected with support rods, and one end of the support rod is fixed with a lower triangular block matched with the upper triangular block.

2. The skull fixation device for neurosurgical brain operation according to claim 1, characterized by The slide groove includes two strip-shaped grooves oppositely provided in the two sides of the positioning cylinder and a placing groove located outside the strip-shaped groove.

3. The skull fixation device for neurosurgical brain operations according to claim 1, characterized in that, The connection cylinder includes a first cylinder body and a second cylinder body, the first cylinder body and the second cylinder body jointly enclose a cavity, one end of the first cylinder body and the second cylinder body is jointly buckled with an end cover one, the other end is jointly screwed with an end cover two, and the two sides of the end cover one are provided with magnetic attraction members; The top and bottom of the first cylinder body and the second cylinder body are further provided with movable cavities isolated from the cavity; Wherein, the locking member is located in the space formed by the two corresponding movable cavities.

4. The skull fixation device for neurosurgical brain operations according to claim 2, characterized in that, The insertion slot is arranged at 90 degrees with the strip-shaped slot, And the strip-shaped slot and the corresponding insertion slots are in communication with each other.

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