Novel pillow fixing structure for cervical vertebra posterior approach with reset function

Abstract

The present application relates to a kind of new pillow bone fixing structure of cervical vertebra posterior route with reset function, including pillow bone connecting rod and pillow bone fixing plate, pillow bone fixing plate includes center plate and symmetrically arranged side branch plate on both sides of center plate, center plate is equipped with fixed hole, center plate is equipped with reset hook for cooperating reset tool reset;Side branch plate is equipped with breakable upper length connector and lower length connector, upper length connector and lower length connector are equipped with limiting nut, in one side branch plate, pillow bone connecting rod is sequentially passed through lower length connector and upper length connector, and is positioned by limiting nut;Pillow bone connecting rod is lower length connector pivot, and by tightening limiting nut in upper length connector, to drive pillow bone fixing plate to rotate back together with skull, realize self-reset of skull base depression.The present application can effectively improve the reset effect of skull base depression by the specific self-reset function design, reduce the difficulty of placing pillow bone connecting rod, improve the work efficiency of medical staff.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a novel posterior cervical occipital fixation structure with repositioning function. Background Technology

[0002] During posterior cervical fusion, an occipital fixation plate is required. This plate is fixed to the occipital bone, providing fixation and connection points for the occipital-cervical fixation. During the surgical procedure, the occipital fixation plate is fixed along the midline of the occipital bone. Two pre-bent connecting rods are used to connect the connectors on the left and right sides of the occipital fixation plate to the pedicle screws on the left and right sides of the cervical spine, respectively. This establishes a connection between the occipital fixation point and the cervical fixation point, thus integrating the occipital bone and cervical spine into a single unit for occipital-cervical fixation.

[0003] In basilar impression, the odontoid process of the axis vertebra often shifts upwards and backwards into the cranium, compressing the spinal cord and causing numbness and weakness in the limbs. If the odontoid process can be pulled down and simultaneously moved forward, it will achieve optimal repositioning, relieving spinal cord compression and leading to the best surgical outcome. To achieve this, previous procedures involved creating a space between the cervical screws and the occipital fixation plate to pull down the odontoid process and reposition the basilar impression. However, because the occipital fixation plate only has one connector on each side, this manipulation, while pulling down the odontoid process, also pushes the skull forward, exacerbating the posterior displacement of the odontoid process and worsening spinal cord compression. Therefore, during surgery, an assistant needs to hyperextend the head, and multiple adjustments and increases in the pre-bending of the connecting rod are required to move the odontoid process forward. However, because the U-shaped groove of the connector on the traditional occipital fixation plate is shallow, increasing the curvature of the connecting rod makes it difficult to attach. Often, one aspect cannot be addressed simultaneously, requiring repeated operations and the use of various tools to achieve a barely satisfactory repositioning result. Summary of the Invention

[0004] To address the existing problems, this invention proposes a novel posterior cervical occipital fixation structure with repositioning function, which effectively improves the repositioning effect of basilar indentation and increases the work efficiency of medical staff.

[0005] The technical solution of this invention is implemented as follows:

[0006] A novel posterior cervical occipital fixation structure with repositioning function includes an occipital connecting rod and an occipital fixation plate for fixation to the skull. The occipital fixation plate includes a central plate and lateral branch plates symmetrically arranged on both sides of the central plate. The central plate has fixation holes for fixing the occipital fixation plate and repositioning hooks for repositioning basilar indentation with a repositioning tool. Each of the lateral branch plates has a breakable upper extension connector and a lower extension connector. Each of the upper and lower extension connectors has a limiting nut that is threadedly matched to it. On one side of the lateral branch plate, the occipital connecting rod passes through the lower extension connector and the upper extension connector in sequence and is limited in the lower extension connector and the upper extension connector by the limiting nut. The occipital connecting rod uses the lower extension connector as a fulcrum and, by tightening the limiting nut in the upper extension connector, drives the occipital fixation plate and the skull to rotate backward, thereby achieving self-repositioning of the basilar indentation.

[0007] Preferably, the reset hook is U-shaped.

[0008] Preferably, the fixation holes include a first fixation hole, a second fixation hole, and a third fixation hole. The repositioning hook is vertically fixed between the first and second fixation holes through both ends of the U-shaped opening. The lateral branch plate is located on the left and right sides of the second and third fixation holes of the central plate, and its lower end extends downward toward the central plate to form a bone graft window with the lower end of the central plate.

[0009] Preferably, each of the side branches has at least two adjustment holes, which are elongated elliptical in shape.

[0010] Preferably, both the upper extended connector and the lower extended connector include an extended U-shaped groove and a retainer. The extended U-shaped groove is movably disposed on the retainer, and the retainer is movably engaged with the adjustment hole, so that both the upper extended connector and the lower extended connector can move laterally left and right and rotate in the adjustment hole. The limiting nut is movably disposed in the extended U-shaped groove through a threaded engagement, and the occipital bone connecting rod passes between the limiting nut and the extended U-shaped groove.

[0011] Preferably, the extended U-shaped channel includes a U-shaped channel and an extended channel wall, the extended channel wall being located above the U-shaped channel, and the length of the extended channel wall being greater than the length of the U-shaped channel; and the extended channel wall and the U-shaped channel are connected by a break line, so that the extended U-shaped channel is breakable.

[0012] Preferably, the included angle between the outer side of the side branch plate and the central plate is 90°-120°.

[0013] Preferably, the occipital bone connecting rod is a bent structure adapted to the occipital-neck angle.

[0014] Preferably, the novel occipital fixation structure further includes pedicle screws, wherein the pedicle screws are universal pedicle screws; the pedicle screws are fixed to the cervical spine and form an occipitocervical fixation with the occipital fixation plate through the occipital connecting rod.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The occipital fixation structure of this invention features a repositioning hook on the central plate of the occipital fixation plate for repositioning the basilar indentation with a repositioning tool. An upper and lower extension connector are located on the lateral branch plates. The occipital connecting rod uses the lower extension connector as a fulcrum. By tightening the limiting nut in the upper extension connector, the skull base rotates backward, causing it to move upward and backward, i.e., the odontoid process moves downward and forward. This effectively improves the repositioning effect of the occipital fixation structure on the basilar indentation, thus avoiding the aggravation of spinal cord compression due to poor repositioning. Both the upper and lower extension connectors are extended from their original length to reduce the difficulty of placing the occipital connecting rod, making it convenient and quick. This not only improves the repositioning effect of the occipital fixation structure on the basilar indentation but also saves surgical time and improves the work efficiency of medical staff. Furthermore, the upper and lower extension connectors are breakable, preventing them from protruding under the skin after the repositioning surgery and affecting the patient's normal life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an axial view of the occipital fixation structure of the present invention;

[0019] Figure 2 This is a side view of the occipital fixation structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the occipital fixation plate in the occipital fixation structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the upper and lower extension connectors in the occipital fixation structure of the present invention.

[0022] Attached image labels:

[0023] 1. Central plate; 10. Occipital fixation plate; 11. Fixation hole; 2. Lateral branch plate; 20. Occipital connecting rod; 21. Upper extension connector; 29. ​​Lower extension connector; 22. Extended U-shaped groove; 23. Card holder; 24. Limiting nut; 25. Adjustment hole; 26. Bone fracture mark; 27. U-shaped groove; 28. Extended groove wall; 3. Reduction hook; 4. Pedicle screw; 5. Bone graft window. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1 to 4The diagram shows a novel posterior cervical occipital fixation structure with repositioning function provided by the present invention. It includes an occipital connecting rod 20 and an occipital fixation plate 10 for fixing to the skull. The occipital fixation plate 10 includes a central plate 1 and lateral branch plates 2 symmetrically arranged on both sides of the central plate 1. The central plate 1 has fixation holes 11 for fixing the occipital fixation plate 10 and repositioning hooks 3 for repositioning skull base depressions with a repositioning tool. Both lateral branch plates 2 are provided with a breakable upper extension connector 21 and a lower extension connector 2. 9. Both the upper extension connector 21 and the lower extension connector 29 are provided with limiting nuts 24 that are respectively matched with their threads. On one side branch plate 2, the occipital bone connecting rod 20 passes through the lower extension connector 29 and the upper extension connector 21 in sequence, and is limited in the lower extension connector 29 and the upper extension connector 21 by the limiting nuts 24. The occipital bone connecting rod 20 uses the lower extension connector 29 as a fulcrum, and by tightening the limiting nuts 24 in the upper extension connector 21, it drives the occipital bone fixation plate 10 and the skull to rotate backward, so as to realize the self-reduction of the skull base depression.

[0028] Specifically, the occipital fixation plate 10 includes a central plate 1 and lateral plates 2. The lateral plates 2 are symmetrically arranged on both sides of the central plate 1. The central plate 1 has fixation holes 11, including a first fixation hole, a second fixation hole, and a third fixation hole. The occipital fixation plate 10 is fixed to the skull by screws passing through the first fixation hole, the second fixation hole, and the third fixation hole, respectively. The lateral plates 2 are located on the left and right sides of the second fixation hole and the third fixation hole of the central plate 1, and their lower ends extend downwards towards the central plate 1 to form a bone graft window 5 with the lower end of the central plate 1. The downward extension of the lower end of the lateral plates 2 towards the central plate 1 does not affect the size of the bone graft window 5 and makes it easier to embed and implant the bone graft material.

[0029] Both the upper extended connector 21 and the lower extended connector 29 are extended from the basic length of the connector. This setting facilitates the insertion of the occipital bone connecting rod 20 without the need for an assistant to overextend the head or for the assistance of other pressing tools. The upper extended connector 21 and the lower extended connector 29 are arranged vertically aligned on the side branch plate 2. On one side of the side branch plate 2, the occipital bone connecting rod 20 passes through the lower extended connector 29 and the upper extended connector 21 in sequence, and is limited in the lower extended connector 29 and the upper extended connector 21 by the limiting nuts 24 of the lower extended connector 29 and the upper extended connector 21, respectively.

[0030] Specifically, in this embodiment, both the upper extended connector 21 and the lower extended connector 29 include an extended U-shaped groove 22 and a retainer 23. The extended U-shaped groove 22 is disposed on the retainer 23, and the limiting nut 24 is movably disposed in the extended U-shaped groove 22 through a threaded engagement. The upper extended connector 21 corresponds to the upper extended U-shaped groove 22, and the lower extended connector 29 corresponds to the lower extended U-shaped groove 22. The occipital bone connecting rod 20 is sequentially inserted between the upper extended U-shaped groove 22 and the lower extended U-shaped groove 22 and the limiting nut 24. The occipital bone connecting rod 20 has a bent structure. Specifically, as shown... Figure 4 As shown, after the occipital bone connecting rod 20 is locked and fixed to the cervical pedicle screw 4, on one side of the lateral branch plate 2, the distal end of the occipital bone connecting rod 20 is first inserted into the lower extended U-shaped groove 22, and the bending apex of the occipital bone connecting rod 20 is brought into contact with the bottom of the U-shaped groove in the lower extended U-shaped groove 22 by screwing in the limiting nut 24 of the lower extended U-shaped groove 22. At this time, the limiting nut 24 is not fully tightened; then the distal end of the occipital bone connecting rod 20 is inserted into the U-shaped groove of the upper extended U-shaped groove 22, but not into the U-shaped groove. The bottom of the groove contacts, and then the limiting nut 24 in the extended U-shaped groove 22 is gradually tightened. The occipital bone connecting rod 20 on the other side branch plate 2 is operated in the same way. During the tightening of the limiting nut 24 in the extended U-shaped groove 22, the occipital bone connecting rod 20 uses the bottom of the U-shaped groove in the extended U-shaped groove 22 as the fulcrum, and gradually drives the occipital bone fixing plate 10 and the skull to rotate backward. At this time, the skull base moves upward and backward. The upward and backward movement of the skull base causes the odontoid process to move downward and forward, further realizing the self-reduction of the skull base depression.

[0031] The greater the distance between the distal end of the occipital bone connecting rod 20 and the bottom of the U-shaped groove in the upper extended U-shaped groove 22, the greater the angle at which the bent occipital bone connecting rod 20 rotates the occipital bone fixation plate 10 along with the skull backward when the limiting nut 24 in the upper extended U-shaped groove 22 is tightened, the better the reduction effect of the skull base depression.

[0032] At the same time, when the reduction and fixation are completed, the breakable parts of the upper extension connector 21 and the lower extension connector 29 can be broken off without protruding into the subcutaneous tissue behind the skull, thereby avoiding the impact on the patient's normal life after the reduction surgery.

[0033] The central plate 1 is provided with a repositioning hook 3 for repositioning the basilar indentation with the repositioning tool. In this embodiment, the repositioning hook 3 is U-shaped. The repositioning hook 3 is vertically fixed between the first and second fixing holes through the two ends of the U-shaped opening to adapt to the structure of the repositioning tool. During the repositioning of the basilar indentation, the repositioning tool can also engage with the repositioning hook 3. By adjusting and pulling the repositioning tool, the repositioning hook 3 can be rotated, thereby driving the occipital fixation plate 10 to reposition the basilar indentation, thus effectively improving the repositioning effect of the occipital fixation structure on the basilar indentation.

[0034] Further improvements are made in, such as Figure 3 As shown, each side branch plate 2 has at least two adjustment holes 25. The adjustment holes 25 are elongated elliptical in shape. An extended U-shaped groove 22 is movably mounted on a retainer 23 so that the extended U-shaped groove 22 can rotate on the retainer 23. The retainer 23 is movably engaged with the adjustment hole 25. The lateral length of the adjustment hole 25 is greater than that of the retainer 23, so that the retainer 23 can move back and forth in the adjustment hole 25. This allows both the upper extended connector 21 and the lower extended connector 29 to move and rotate laterally left and right in the adjustment hole 25. Consequently, the spacing between the extended connectors in the same row on both side branch plates 2 is variable, facilitating adjustment according to the patient's condition during surgery. Furthermore, since the diameter of the upper and lower ends of the retainer 23 is greater than the width of the adjustment hole 25, the upper extended connector 21 and the lower extended connector 29 are less likely to fall off when moving and rotating laterally left and right in the adjustment hole 25.

[0035] Further improvements are made in, such as Figure 4 As shown, the extended U-shaped groove 22 includes a U-shaped groove 27 and an extended groove wall 28. The extended groove wall 28 is located above the U-shaped groove 27, and the length of the extended groove wall 28 is greater than the length of the U-shaped groove 27, and the length of the extended groove wall 28 is one time or more than that of the U-shaped groove 27. The extended groove wall 28 and the U-shaped groove 27 are connected by a break mark 26 so that the extended U-shaped groove 22 is breakable. When the reduction and fixation are completed, the extended groove wall 28 that exceeds the limit nut 24 can be broken through the break mark 26 so that the extended U-shaped groove 22 does not protrude from the subcutaneous tissue behind the skull, thus avoiding affecting the patient's normal life after the reduction surgery.

[0036] A further improvement is that the occipital connecting rod 20 can be bent into the required arc curvature according to the posterior cervical spine occipital-cervical angle. In order to adapt to the bending structure of the occipital-cervical angle, its length can also be cut according to actual needs.

[0037] A further improvement is that the new occipital fixation structure also includes a pedicle screw 4. The pedicle screw 4 includes a screw body and a screw cap with a U-shaped groove. The pedicle screw 4 is a universal pedicle screw, that is, the screw body can rotate three-dimensionally at a certain angle in the U-shaped groove of the screw cap to facilitate control of the implantation angle. The pedicle screw 4 is fixed on the cervical spine and forms an occipitocervical fixation with the occipital fixation plate 10 through the occipital bone connecting rod 20. Specifically, the occipital fixation plate 10 is fixed on the skull, the occipital bone connecting rod 20 is fixed on the occipital fixation plate 10 through the upper extension connector 21 and the lower extension connector 29, and the pedicle screw 4 is fitted with the screw cap on the end of the occipital bone connecting rod 20 away from the upper extension connector 21 and the lower extension connector 29, and is fixed on the cervical spine through the screw body, thus forming an occipitocervical fixation.

[0038] A further improvement is that the included angle between the outer side of the lateral branch plate 2 and the central plate 1 is 90°-120°. In this embodiment, the included angle between the outer side of the lateral branch plate 2 and the central plate 1 is 90°. This design conforms to the physiological structure of the occipital bone and effectively avoids affecting the size of the bone graft window 5, leaving enough operating space for bone grafting and facilitating the implantation and growth of bone graft materials.

[0039] In practical use, on one side of the lateral branch plate 2, the lower end of the bent occipital bone connecting rod 20 is placed in the U-shaped groove of the pedicle screw 4 head, and the nut in the pedicle screw U-shaped groove is tightened; when placing the distal end of the occipital bone connecting rod 20 into the extended U-shaped groove of the upper extended connector 21 and the lower extended connector 29, first insert the distal end of the occipital bone connecting rod 20 into the lower extended U-shaped groove 22, and tighten the limiting nut 24 of the lower extended U-shaped groove 22 to make the bending apex of the occipital bone connecting rod 20 contact the bottom of the U-shaped groove in the lower extended U-shaped groove 22, at which time the limiting nut 24 is not completely tightened; then insert the distal end of the occipital bone connecting rod 20 into the U-shaped groove of the upper extended U-shaped groove 22, but not into the U-shaped groove of the upper extended U-shaped groove 22. The bottom of the U-shaped groove contacts the occipital bone connecting rod 20, and then the limiting nut 24 in the upper extended U-shaped groove 22 is tightened to make the bottom of the U-shaped groove of the upper extended U-shaped groove 22 fully contact the occipital bone connecting rod 20. The occipital bone connecting rod 20 on the other side branch plate 2 is operated in the same way. During the tightening of the limiting nut 24 in the upper extended U-shaped groove 22, the bottom of the U-shaped groove in the lower extended U-shaped groove 22 is used as the fulcrum. The occipital bone connecting rod 20 drives the occipital bone fixation plate 10 to rotate backward along with the skull. At this time, due to the backward rotation of the skull, the skull base moves upward and backward. The upward and backward movement of the skull base causes the odontoid process to move downward and forward, further realizing the self-reduction of the skull base depression. Thus, the reduction can be completed simply by using this design of the occipital bone fixation plate 10.

[0040] During the reduction process, the reduction tool can be engaged with the reduction hook 3, and the reduction tool can be adjusted to rotate the reduction hook 3, thereby driving the occipital fixation plate 10 to assist in the reduction of the skull base depression, thus greatly improving the reduction effect of the occipital fixation structure on the skull base depression.

[0041] When the reset and fixation are completed, the extended groove wall 28 that extends beyond the limit nut 24 will be broken off.

[0042] In summary, the occipital fixation structure of this invention features a repositioning hook on the central plate of the occipital fixation plate for repositioning the basilar indentation with the repositioning tool. An upper and lower extended connector are provided on the lateral branch plates. The occipital connecting rod uses the lower extended connector as a fulcrum. By tightening the limiting nut in the upper extended connector, the skull base rotates backward, causing it to move upward and backward, i.e., the odontoid process moves downward and forward. This effectively improves the repositioning effect of the occipital fixation structure on the basilar indentation, thus avoiding the aggravation of spinal cord compression due to poor repositioning. Both the upper and lower extended connectors are lengthened from their original lengths to reduce the difficulty of placing the occipital connecting rod, making it convenient and quick. This not only improves the repositioning effect of the occipital fixation structure on the basilar indentation but also saves surgical time and improves the work efficiency of medical staff. Furthermore, the upper and lower extended connectors are breakable, preventing them from protruding under the skin after the repositioning surgery and affecting the patient's normal life.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel posterior cervical occipital fixation structure with repositioning function, characterized in that, The device includes an occipital bone connecting rod (20) and an occipital bone fixation plate (10) for fixing to the skull. The occipital bone fixation plate (10) includes a central plate (1) and lateral branch plates (2) symmetrically arranged on both sides of the central plate (1). The central plate (1) has fixing holes (11) for fixing the occipital bone fixation plate (10) and a reduction hook (3) for reducing skull base depression with a reduction tool. Both sides of the lateral branch plates (2) are provided with a breakable upper extension connector (21) and a lower extension connector (29). Each of the 29) is provided with a limiting nut (24) that is threaded to it. On one side branch plate (2), the occipital bone connecting rod (20) passes through the lower extension connector (29) and the upper extension connector (21) in sequence, and is limited in the lower extension connector (29) and the upper extension connector (21) by the limiting nut (24). The occipital bone connecting rod (20) uses the lower extension connector (29) as a fulcrum, and by tightening the limiting nut (24) in the upper extension connector (21), it drives the occipital bone fixation plate (10) to rotate backward along with the skull, thereby realizing the self-reduction of the skull base depression.

2. The novel posterior cervical occipital fixation structure with repositioning function according to claim 1, characterized in that, The reset hook (3) is U-shaped.

3. The novel posterior cervical occipital fixation structure with repositioning function according to claim 2, characterized in that, The fixation hole (11) includes a first fixation hole, a second fixation hole and a third fixation hole. The repositioning hook (3) is vertically fixed between the first fixation hole and the second fixation hole through the two ends of the U-shaped opening. The side branch plate (2) is located on the left and right sides of the second fixation hole and the third fixation hole of the central plate (1), and its lower end extends downward to the central plate (1) to form a bone graft window (5) with the lower end of the central plate (1).

4. The novel posterior cervical occipital fixation structure with repositioning function according to claim 3, characterized in that, Each of the side branch plates (2) is provided with at least two adjustment holes (25), and the adjustment holes (25) are elongated elliptical.

5. The novel posterior cervical occipital fixation structure with repositioning function according to claim 4, characterized in that, Both the upper extended connector (21) and the lower extended connector (29) include an extended U-shaped groove (22) and a retainer (23). The extended U-shaped groove (22) is movably disposed on the retainer (23), and the retainer (23) is movably engaged with the adjustment hole (25) so that both the upper extended connector (21) and the lower extended connector (29) can move and rotate laterally in the adjustment hole (25). The limiting nut (24) is movably disposed in the extended U-shaped groove (22) through a threaded engagement, and the occipital bone connecting rod (20) passes between the limiting nut (24) and the extended U-shaped groove (22).

6. The novel posterior cervical occipital fixation structure with repositioning function according to claim 5, characterized in that, The extended U-shaped channel (22) includes a U-shaped channel (27) and an extended channel wall (28). The extended channel wall (28) is located above the U-shaped channel (27), and the length of the extended channel wall (28) is greater than the length of the U-shaped channel (27). The extended channel wall (28) and the U-shaped channel (27) are connected by a break line (26) so that the extended U-shaped channel (22) is breakable.

7. The novel posterior cervical occipital fixation structure with repositioning function according to claim 4, characterized in that, The included angle between the outer side of the side branch plate (2) and the center plate (1) is 90°-120°.

8. The novel posterior cervical occipital fixation structure with repositioning function according to claim 5, characterized in that, The occipital bone connecting rod (20) is a bent structure adapted to the occipital-neck angle.

9. The novel posterior cervical occipital fixation structure with repositioning function according to claim 1, characterized in that, It also includes pedicle screws (4), which are universal pedicle screws; the pedicle screws (4) are fixed on the cervical spine and form a cervical fixation with the occipital fixation plate (10) through the occipital bone connecting rod (20).

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