Skull fixing equipment for craniocerebral operation of neurosurgery department

Abstract

The invention provides skull fixing equipment for a neurosurgery craniocerebral operation, and belongs to the field of neurosurgery. Comprising a first side frame and a second side frame which are arranged in a sliding and penetrating mode, the bottom of the first side frame is connected with a universal adjusting frame, a limiting bolt used for limiting the second side frame is arranged on one side of the first side frame in a threaded and penetrating mode, and the device further comprises two positioning cylinders which are fixed to the top ends of the first side frame and the second side frame respectively; the top and the bottom of the connecting cylinder are provided with sliding protruding blocks used for sliding adjustment in the positioning cylinder through the sliding grooves. The locking pieces are distributed on the two sides of the interior of the connecting cylinder; and the driving piece is arranged at one end of the connecting cylinder and is used for driving the locking piece to lock the sliding convex block in the positioning cylinder. Through cooperation of the positioning cylinder and the connecting cylinder, the connecting cylinder can be rotated in the sliding groove to achieve front-back sliding of the positioning head so as to meet the requirement for quickly approaching or leaving away from the positioning area, and operation and use of quickly finding the positioning area and finally positioning are achieved.

Description

Technical Field

[0001] The invention relates to the field of neurosurgery, and more particularly to a skull fixation device for neurosurgery cranial brain surgery. Background Art

[0002] Neurosurgery is a branch of surgery. It is a high-level discipline that uses unique neurosurgery research methods to study the human nervous system, such as the brain, spinal cord and peripheral nervous system, and its related ancillary structures, such as the skull, scalp, cerebral blood vessels and meninges, as well as injuries, inflammation, tumors, malformations and certain genetic metabolic disorders or functional disorders, such as epilepsy, Parkinson's disease, neuralgia and other diseases, and explores new diagnosis, treatment and prevention technologies.

[0003] At present, some patients need surgery to be cured during the diagnosis and treatment of neurosurgery. During the operation, it is particularly important to fix the head. Therefore, skull fixation devices for neurosurgery cranial brain surgery are often used. Most of the existing skull fixation devices are composed of a frame and a fixing nail with a thread set thereon. The fixing nail is rotated on the frame so that one end of the fixing nail is pierced on the surface of the skull to complete the stable fixation of the skull. However, the rotation fixation method has certain defects in the actual application process:

[0004] 1. Due to the different sizes of skulls of different patients, when the frame is installed, 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 results in the need to rotate the fixing pin for a long time in the actual positioning process to make one end reach the area to be fixed, which is a cumbersome operation. At the same time, the removal of the fixing pin after fixation also requires multiple rotations to make one end of it separate from the skull to realize the removal of the entire 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 make it close to the area to be fixed. If it does not work, rotate it in the opposite direction to make it farther away, and then rotate it to make it contact the next area to be fixed. Repeat this process until a suitable fixation position is finally found.

[0006] Therefore, the conventional operation of adjusting the position of the fixing pin by only spiral rotation reduces the fixation efficiency of medical staff and the operation is relatively cumbersome. Therefore, a skull fixation device for neurosurgery cranial surgery is proposed. Summary of the invention

[0007] In view of the problem of complicated operation when rotating and positioning the fixing pins in the prior art, the object of the present invention is to provide a skull fixation device for neurosurgery cranial brain surgery.

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

[0009] A skull fixation device for neurosurgery cranial brain surgery, comprising a side frame 1 and a side frame 2 which are slidably inserted into each other, the bottom of the side frame 1 is connected to a universal adjustment frame, a limiting bolt for limiting the side frame 2 is threadedly inserted into one side of the side frame 1, and further comprising:

[0010] A positioning cylinder having two top ends respectively fixed to the side frame 1 and the side frame 2;

[0011] The connecting cylinder has sliding protrusions on the top and bottom for sliding adjustment in the positioning cylinder through the sliding groove;

[0012] Locking parts are distributed on both sides of the connecting tube;

[0013] A driving member, which is arranged at one end of the connecting tube and is used to drive the locking member to lock the sliding protrusion in the positioning tube;

[0014] Wherein, a positioning piece is also provided in the connecting tube, and the sliding driving piece can also cause the positioning piece to be rotated and extended to fix the skull.

[0015] Optionally, the slide groove includes two strip grooves oppositely opened on two sides of the interior of the positioning tube and an insertion groove located outside the strip grooves.

[0016] Optionally, the connecting cylinder comprises a first cylinder and a second cylinder, the first cylinder and the second cylinder are together surrounded to form a cavity, one end of the first cylinder and the second cylinder are jointly buckled and connected with an end cap 1, and the other end is jointly threadedly connected with an end cap 2, and both sides of the end cap 1 are penetrated with magnetic suction parts;

[0017] The top and bottom of the first cylinder and the second cylinder are also provided with an active cavity isolated from the cavity;

[0018] The locking piece is located in a space formed by the two corresponding active cavities.

[0019] Optionally, the locking member includes a supporting plate fixed in the movable cavity, a movable plate provided at one side of the supporting plate and sliding in the movable cavity, and a first spring connected between the supporting plate and the movable plate;

[0020] The other side of the support plate is connected to a movable column that can slide inside the movable cavity through a second spring, a positioning column is fixed to 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 contact the surface of the movable plate;

[0021] A positioning buckle is fixed on the surface of the movable disk, and under the action of the first spring, the positioning buckle can protrude outside the movable cavity and engage with the buckle groove in the strip groove to complete the locking of the connecting tube.

[0022] Optionally, the locking member further comprises a transmission rod disposed in the movable cavity and connected to the movable column;

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

[0024] Optionally, the positioning member includes a propulsion disk slidably disposed inside the cavity, a rotating disk movably connected to one side of the propulsion disk, and a hexagonal joint connected to the surface of the rotating disk;

[0025] Wherein, a propulsion arm is connected to the other side of the propulsion disc, one end of the propulsion arm extends outside the cavity and is sleeved with a positioning head;

[0026] A limiting ring is also fixed inside the cavity, and the limiting ring can limit the sliding trajectory of the propulsion disk inside the cavity.

[0027] Optionally, one end of the telescopic rod extends inside the cavity to form a corner portion;

[0028] The corner portion is disposed inside the propulsion arm, and one end of the corner portion located inside the propulsion arm is provided with a locking head extending outwardly;

[0029] A locking groove matched with the locking head is provided inside the positioning head, and in a natural state, the locking head is located inside the propulsion arm under the elastic force of the second spring.

[0030] Optionally, the driving member comprises a propulsion screw connected to the end cover by a thread, a side of the propulsion screw facing the hexagonal joint is provided with an inner hexagonal groove matched therewith, and a return spring is sleeved on the surface of the propulsion screw;

[0031] One end of the return spring is connected to the surface of the rotating disk, and the other end is connected with the end cover in a snap-fitting manner.

[0032] Optionally, both ends of the side surface of the end cover are connected to support rods, and a lower triangular block matching the upper triangular block is fixed to 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-shaped grooves are connected to a plurality of corresponding insertion grooves.

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

[0036] In the above scheme, through the cooperation of the positioning tube and the connecting tube, the connecting tube can be rotated inside the slide groove to realize the forward and backward sliding of the positioning head to meet the needs of quickly approaching or moving away from the positioning area, thereby realizing the operation of quickly finding the positioning area and the final positioning.

[0037] By setting the cooperation of the positioning buckle and the buckle groove, an initial limit can be formed after the connecting tube slides into the appropriate insertion groove for preliminary locking. When the sliding driving member cooperates with the connecting tube to further form the driving positioning of the positioning head, the movable column will form a conflict with the movable disk through the positioning column thereon, thereby locking the positioning buckle, ensuring that when the rotating advancement screw rod forms a further precision movement of the positioning head, the connecting tube will not form a relative rotation with the positioning tube, thereby realizing the rotation use of the advancement screw rod;

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

[0039] Through the cooperation of the positioning member and the driving member, after the driving member slides and connects with the locking member to overcome the elastic force of the reset spring, the hexagonal groove will engage with the hexagonal joint to complete the indirect push adjustment with the propulsion disk and realize the synchronous transmission state. At the same time, after the operation is completed, after the driving member is separated from the locking member, the propulsion arm and the positioning head can be synchronously reset by the force of the reset spring and quickly move away from the skull fixation area, so as to realize rapid disassembly after the operation.

[0040] At the same time, the locking piece will eventually release the lock on the positioning buckle and the positioning head, so as to realize the separation and disassembly of the connecting cylinder from the interior of the reset cylinder;

[0041] By setting up the connecting cylinder, after the surgical operation is completed, the end cover one and the end cover two can be separated, so that the first cylinder body and the second cylinder body can be separated to expose the internal structure, which is convenient for subsequent replacement and maintenance, and can also make it fully contact with the disinfectant to achieve better disinfection operation to meet subsequent use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] 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.

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0044] Figure 2 It is a side view structural schematic diagram of the present invention;

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

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

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

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

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

[0050] Figure 8 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0051] Fig. 9 It is a partial structural schematic diagram of the locking member of the present invention;

[0052] Fig.10 It is a schematic diagram of the cross-sectional structure of the connecting tube of the present invention;

[0053] Fig.11 This is a schematic diagram of the explosion structure of the connecting tube of the present invention;

[0054] Fig.12 It is a schematic diagram of the positioning tube structure of the present invention;

[0055] Fig.13 It is a schematic diagram of the chute structure of the present invention.

[0056] [Reference Signs]

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

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

[0059] 6. Connecting cylinder; 61. First cylinder; 62. Second cylinder; 63. Cavity; 64. Active cavity; 65. End cover 1; 650. Support rod; 651. Lower triangle block; 66. End cover 2; 67. Sliding protrusion; 68. Magnetic element;

[0060] 7. Locking member; 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; 783. Locking head;

[0061] 8. Driving member; 81. Pushing screw; 82. Hexagon socket; 83. Return spring;

[0062] 9. Positioning piece; 91. Propelling disc; 92. Rotating disc; 93. Hexagonal joint; 94. Propelling arm; 95. Positioning head; 950. Locking groove; 96. Limiting ring.

[0063] 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

[0064] 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.

[0065] 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).

[0066] 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.

[0067] 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.

[0068] 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.

[0069] like Figures 1 to 13 As shown, an embodiment of the present invention provides a skull fixation device for neurosurgery cranial brain surgery, including a side frame 1 and a side frame 2 that are slidably inserted into each other, the bottom of the side frame 1 is connected to a universal adjustment frame 3, and a limit bolt 4 for limiting the side frame 2 is threadedly inserted into one side of the side frame 1. By sliding the side frame 1 and the side frame 2 2 according to the size of the skull of different patients, the relative distance between the side frame 1 and the side frame 2 is adjusted to be larger than the actual skull size of the patient, and then the limit 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 tube 5, which has two top ends respectively fixed to the side frame 1 and the side frame 2; a connecting tube 6, the top and bottom of which are provided with sliding protrusions 67 for sliding adjustment in the positioning tube 5 through the sliding groove 51; a locking member 7, which is distributed on both sides of the inside of the connecting tube 6; a driving member 8, which is arranged at one end of the connecting tube 6 and is used to drive the locking member 7 to form a locking of the sliding protrusion 67 in the positioning tube 5, wherein the connecting tube 6 also has a positioning member 9, and the sliding driving member 8 can also make the positioning member 9 rotate and extend to fix the skull.

[0071] The slide groove 51 includes two strip grooves 510 oppositely opened at two sides of the interior of the positioning tube 5 and an insertion groove 511 located outside the strip groove 510 .

[0072] like Fig.11 , Fig.12 and Fig.13 As shown, the sliding protrusion 67 on the connecting tube 6 can be slid along the strip groove 510 to adjust its relative position with the positioning tube 5, thereby adjusting the positioning distance of the positioning member 9, so that it can quickly approach the skull area to be fixed, thereby facilitating the operation of frequently changing different skull areas until the final suitable skull area is found. After finding the appropriate position, the connecting tube 6 can be rotated to make the sliding protrusion 67 on it slide into the corresponding insertion groove 511 for limiting the position.

[0073] Similarly, after a neurosurgery operation on the skull, the insertion groove 511 can be slid out of the strip groove 510, and the connecting tube 6 and the positioning member 9 thereon can be quickly slid to meet the needs of disassembly of the positioning member 9 at the skull of the patient after the operation, which is convenient for practical application.

[0074] like Fig.11 As shown, the connecting cylinder 6 includes a first cylinder body 61 and a second cylinder body 62, which together form a cavity 63, one end of the first cylinder body 61 and the second cylinder body 62 are commonly snap-fitted with an end cap 1 65, and the other end is commonly threadedly connected with an end cap 2 66, both sides of the end cap 1 65 are penetrated with magnetic suction parts 68, and magnetic suction grooves are opened on the surfaces of the first cylinder body 61 and the second cylinder body 62 at the positions corresponding to the magnetic suction parts 68.

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

[0076] When the connecting tube 6 is without the end cap 1 65 and the end cap 2 66, it can be separated and disassembled to expose the cavity 63, thereby facilitating the disassembly of its internal structure and also facilitating more thorough cleaning and disinfection after neurosurgery.

[0077] When the skull is actually positioned, the first cylinder 61 and the second cylinder 62 are enclosed to form a cavity 63, and then the end cover 66 is rotated to fix one end of the first cylinder 61 and the second cylinder 62, and then the end cover 65 is snapped on it to fix the other end of the first cylinder 61 and the second cylinder 62, and finally the magnetic attraction part 68 is inserted into the first cylinder 61 and the second cylinder 62 through the end cover 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 further provided with an active cavity 64 isolated from the cavity 63, wherein the locking member 7 is located in the space enclosed by the two corresponding active cavities 64;

[0079] The locking member 7 includes a support plate 71 fixed in the movable cavity 64 , a movable plate 72 provided at one side of the support plate 71 and sliding inside the movable cavity 64 , and a first spring 73 connected between the support plate 71 and the movable plate 72 .

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

[0081] like Figure 7 As shown, at this time, the driving member 8 does not form a locking effect on the locking member 7. At this time, the first spring 73 is in a natural form. The first spring 73 in the natural state will give the movable disk 72 an outward resistance force. The movable disk 72 subjected to the resistance will drive the positioning buckle 77 thereon to protrude from the outside of the movable cavity 64 so that it is exposed outside the sliding protrusion 67. When the connecting tube 6 slides to a suitable position in the positioning tube 5 and needs to slide into the insertion groove 511 through the strip groove 510 for preliminary positioning, the sliding protrusion 67 on the positioning tube 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 preliminary positioning of the position of the connecting tube 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, wherein 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, and the telescopic rod 781 can telescope and slide on the surface of the transmission rod 78 along its length direction without detaching.

[0083] The positioning member 9 includes a propulsion disk 91 slidably disposed inside the cavity 63 , a rotating disk 92 movably connected to one side of the propulsion disk 91 , and a hexagonal joint 93 connected to the surface of the rotating disk 92 .

[0084] Among them, the other side of the propulsion disk 91 is connected to a propulsion arm 94, one end of which extends to the outside of the cavity 63 and is provided with a positioning head 95. The outer end of the positioning head 95 can be designed with different shapes according to actual usage requirements, while the inner end (the end close to the propulsion arm 94) has the same shape.

[0085] A limiting ring 96 is also fixed inside the cavity 63, and the limiting ring 96 can limit the sliding trajectory of the propulsion disk 91 inside the cavity 63. Figure 6 As shown, under the action of the limiting ring 96, the propulsion disk 91 can only slide toward the right side.

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

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

[0088] A locking groove 950 adapted to the locking head 783 is provided inside the positioning head 95 , and the locking head 783 is located inside the propulsion arm 94 under the elastic force of the second spring 74 in a natural state.

[0089] The driving member 8 includes a pushing screw 81 threadedly connected to the end cover 65, and the pushing screw 81 is provided with a hexagonal inner groove 82 matched with the hexagonal joint 93 on one side thereof, and a reset spring 83 is sleeved on the surface of the pushing screw 81, wherein one end of the reset 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 to form separation or installation with the reset spring 83. After the end cover 65 is pulled out of one side of the connecting tube 6, the reset spring 83 in the engaged state will still be connected to the end cover 65. At this time, the reset spring 83 can be manually taken out of the corresponding groove to complete the disassembly of the end cover 65 and the reset spring 83 (the connection of the above-mentioned reset spring 83 by engaging with the external structure is a mature and complete prior art, which is not further elaborated in this embodiment).

[0090] When the end cover 1 65 is buckled onto the surfaces 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 side surface of the end cover 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 member 8 is buckled toward the position of the connecting tube 6, the end cover 65 will first be buckled with one end of the connecting tube 6, and then the magnetic member 68 will be used to fix the end cover 65 and the connecting tube 6. During this process, the lower triangular block 651 on the end cover 65 will form a conflict with the corresponding upper triangular block 780. The upper triangular block 780 subjected to the conflict will drive the transmission rod 78 thereon to move outward. During the movement, the transmission rod 78 will drive the movable column 75 thereon to slide synchronously in the direction of the positioning buckle 77. The movable column 75 will also drive the positioning column 76 thereon to slide. When the lower triangular block 651 completely conflicts with the corresponding upper triangular block 780, the positioning column 76 just penetrates the support plate 71 and conflicts with one side of the movable plate 72.

[0093] Since the movable disk 72 is now subjected to resistance and can no longer slide freely inside the movable cavity 64, the positioning buckle 77 and buckle groove 512 thereon form a stable lock. At this time, the position between the connecting tube 6 and the positioning tube 5 will not change relatively, thereby ensuring the stability of the subsequent drive member 8 during precision adjustment.

[0094] In the process of the lower triangular block 651 and the corresponding upper triangular block 780 contacting and driving the transmission rod 78 to move, the transmission rod 78 will drive the corner portion 782 thereon to move synchronously. In the natural state, the locking head 783 on the corner portion 782 is hidden inside the propulsion arm 94. At this time, the positioning head 95 can be replaced at the end of the propulsion arm 94 at will. The moved transmission rod 78 and corner portion 782 will make the locking head 783 extend out of the outside of the propulsion arm 94 so that it can be inserted into the locking groove 950 in the corresponding positioning head 95. While forming the locking of the positioning buckle 77, the locking of the positioning head 95 is synchronously realized.

[0095] After the end cover 65 is completely assembled in place, the inner hexagonal groove 82 on the advancing screw 81 also forms an assembly connection with the corresponding hexagonal joint 93.

[0096] Then, the push screw 81 is rotated on the surface of the end cap 65. Since the above adjustment of the position of the connecting tube 6 in the slide groove 51 is for testing the final fixing area and the operation of bringing the positioning head 95 close to the area to be fixed, it is only necessary to rotate the push screw 81 slightly to make the positioning head 95 pierce the skin and fix it on the patient's skull to ensure the stability of the head during the neurosurgery. The specific steps are as follows:

[0097] The push screw 81 is rotated to form a threaded fit with the end cover 65. The push screw 81 subjected to the force will slide relative to the end cover 65. During the sliding process, the push screw 81 will drive the push disk 91, the push arm 94 and the positioning head 95 to move synchronously through the hexagonal joint 93, so that the positioning head 95 is fixed to the surface of the skull, completing the head fixation before neurosurgery.

[0098] Since the rotating disk 92 and the pushing disk 91 are in a rotatable state, the pushing screw 81 during the rotation process will not cause the pushing arm 94 and the positioning head 95 thereon to rotate synchronously, ensuring that the positioning head 95 is ultimately inserted into the patient's skull instead of being screwed into it (the traditional method of using fixing nails is to spirally pierce the skin and insert into the skull surface), which is beneficial to the protection of the fixing area.

[0099] After the neurosurgery operation is completed through the above-mentioned fixing operation, the magnetic attraction member 68 is removed, and the end cover 65 is separated from the surface of the connecting tube 6, so that the driving member 8 can be removed. After the driving member 8 is taken out, the positioning head 95 can be quickly slid and reset by the force of the reset spring 83 to release the fixation on the patient's skull, thereby realizing the rapid removal of the device from the skull.

[0100] At the same time, the positioning buckle 77 is also unlocked at this time, and can quickly slide into the strip groove 510 in the insertion groove 511 to remove the connecting tube 6. At the same time, the positioning head 95 can also be disassembled synchronously. Compared with the traditional method of constantly rotating the fixing nail to remove it, the efficiency of removing the device after surgery is effectively improved. At the same time, when the end cover 66 is disassembled, the internal structure can be exposed, and the overall disassembly is completed while removing the device, and sufficient cleaning and disinfection can be carried out without secondary disassembly.

[0101] The insertion grooves 511 and the strip grooves 510 are arranged at a 90-degree angle, and the strip grooves 510 and the plurality of corresponding insertion grooves 511 are interconnected. The arrangement of the plurality of insertion grooves 511 allows for more options for the position of the connecting tube 6 when slidingly adjusting in the positioning tube 5, so that the positioning head 95 can select a position infinitely close to the patient's skull, so as to quickly calibrate the positioning area, and at the same time, the positioning head 95 can complete the fixation of the skull without long-term driving during the actual calibration process.

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

[0103] First, move the side frame 1 and the side frame 2 to place the positioning heads 95 on both sides of the patient's head (a certain space needs to be left between the two sides of the patient's head), move the connecting tube 6 and the positioning heads 95 thereon in the strip groove 510 to make them close to or contact the area to be fixed. If the area is not suitable, slide and adjust through the strip groove 510 and the insertion groove 511 until a suitable fixing area is found. In this process, different positioning heads 95 can also be replaced through the surface of the propulsion arm 94 to find a corresponding suitable positioning head 95 (at this time, the positioning head 95 is 5 is not locked by the locking head 783), when the adaptation of the positioning head 95 is completed, that is, the initial positioning of the positioning head 95 and the patient's skull area is completed, the driving member 8 is pushed to make the end cover 65 thereon buckle on the connecting tube 6, and after the magnetic attraction member 68 is rotated to complete the connection, the positioning buckle 77 is locked in the insertion groove 511, and the locking head 783 is locked in the positioning head 95, and the hexagonal groove 82 and the hexagonal joint 93 are assembled, and then the advancing screw 81 is rotated slightly to make the positioning head 95 pierce the skin and directly fix it on the surface of the patient's skull.

[0104] After the operation, the magnetic attraction part 68 is taken out, and after the disassembly of the driving part 8 is completed, the positioning part 9 can follow the action of the propulsion arm 94 to move away from the skull fixation area, completing the rapid disassembly of the arrangement, and further disassembly of the end cover 2 66 can expose the structure inside the connecting tube 6, so that the subsequent disinfection and cleaning can be more thorough.

[0105] 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 following 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.

[0106] 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 skull fixation device for neurosurgery cranial brain surgery, comprising a side frame 1 and a side frame 2 which are slidably inserted into each other, the bottom of the side frame 1 is connected to a universal adjustment frame, and a limit bolt for limiting the position of the side frame 2 is threadedly inserted into one side of the side frame 1, characterized in that: Also includes: A positioning cylinder having two top ends respectively fixed to the side frame 1 and the side frame 2; The connecting cylinder has sliding protrusions on the top and bottom for sliding adjustment in the positioning cylinder through the sliding groove; Locking parts are distributed on both sides of the connecting tube; A driving member, which is arranged at one end of the connecting tube and is used to drive the locking member to lock the sliding protrusion in the positioning tube; Wherein, a positioning piece is also provided in the connecting tube, and the sliding driving piece can also cause the positioning piece to be rotated and extended to fix the skull.

2. The skull fixation device for neurosurgery cranial surgery according to claim 1, characterized in that: The sliding groove comprises two strip grooves which are oppositely opened on two sides of the interior of the positioning tube and an insertion groove which is located outside the strip grooves.

3. The skull fixation device for neurosurgery cranial surgery according to claim 1, characterized in that: The connecting cylinder comprises a first cylinder body and a second cylinder body, wherein the first cylinder body and the second cylinder body are jointly surrounded to form a cavity, one end of the first cylinder body and the second cylinder body are jointly buckled and connected with an end cap 1, and the other end is jointly threadedly connected with an end cap 2, and both sides of the end cap 1 are penetrated with magnetic suction parts; The top and bottom of the first cylinder and the second cylinder are also provided with an active cavity isolated from the cavity; The locking piece is located in a space formed by the two corresponding active cavities.

4. The skull fixation device for neurosurgery cranial surgery according to claim 3, characterized in that: The locking member comprises a support plate fixed in the movable cavity, a movable plate provided at one side of the support plate and sliding inside the movable cavity, and a first spring connected between the support plate and the movable plate; The other side of the support plate is connected to a movable column that can slide inside the movable cavity through a second spring, a positioning column is fixed to 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 contact the surface of the movable plate; A positioning buckle is fixed on the surface of the movable disk, and under the action of the first spring, the positioning buckle can protrude outside the movable cavity and engage with the buckle groove in the strip groove to complete the locking of the connecting tube.

5. The skull fixation device for neurosurgery cranial surgery according to claim 4, characterized in that: The locking member further comprises a transmission rod disposed in the movable cavity and connected to the movable column; One end of the transmission rod is connected to the upper triangular block, and the other end is slidably connected to the telescopic rod.

6. The skull fixation device for neurosurgery cranial surgery according to claim 5, characterized in that: The positioning member includes a propulsion disk slidably arranged inside the cavity, a rotating disk movably connected to one side of the propulsion disk, and a hexagonal joint connected to the surface of the rotating disk; Wherein, a propulsion arm is connected to the other side of the propulsion disc, one end of the propulsion arm extends outside the cavity and is sleeved with a positioning head; A limiting ring is also fixed inside the cavity, and the limiting ring can limit the sliding trajectory of the propulsion disk inside the cavity.

7. The skull fixation device for neurosurgery cranial surgery according to claim 6, characterized in that: One end of the telescopic rod extends inside the cavity to form a corner portion; The corner portion is disposed inside the propulsion arm, and one end of the corner portion located inside the propulsion arm is provided with a locking head extending outwardly; Wherein, a locking groove matched with the locking head is provided inside the positioning head, and in a natural state, the locking head is located inside the propulsion arm under the elastic force of the second spring.

8. The skull fixation device for neurosurgery cranial surgery according to claim 6, characterized in that: The driving member comprises a propulsion screw connected to the end cover by a thread, a side of the propulsion screw facing the hexagonal joint is provided with an inner hexagonal groove matched with the hexagonal joint, and a return spring is sleeved on the surface of the propulsion screw; One end of the return spring is connected to the surface of the rotating disk, and the other end is connected with the end cover in a snap-fitting manner.

9. The skull fixation device for neurosurgery cranial surgery according to claim 8, characterized in that: Both ends of the side surface of the end cover 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.

10. The skull fixation device for neurosurgery cranial surgery according to claim 2, characterized in that: The insertion groove and the strip groove are arranged at a 90-degree angle. Furthermore, the strip-shaped grooves are connected to a plurality of corresponding insertion grooves.

Images