CN218420008U - Nail plate for anterior cervical vertebra centrum forward operation - Google Patents

Abstract

The utility model discloses a way centrum antedisplacement operation is with nail board before cervical vertebra relates to the medical instrument field, and its technical essential is: the bone fracture plate comprises a bone fracture plate, wherein reset nail grooves are formed in the bone fracture plate, a plurality of spherical holes are formed in the bone fracture plate and located on two sides of the bone fracture plate, and the reset nail grooves are located between the spherical holes; the first bone screws are in one-to-one correspondence with the spherical holes and are movably matched with the spherical holes, and the first bone screws are used for fixing two sides of the bone fracture plate outside the vertebral body; the reset screw is detachably arranged in the reset screw groove and used for lifting the vertebral body towards the direction close to the bone fracture plate. Aim at solves the operation mode risk of present centrum antedisplacement operation higher, complex operation's technical problem moreover.

Description

Nail plate for anterior cervical vertebra centrum forward operation

Technical Field

The utility model relates to the field of medical equipment, in particular to a nail plate for anterior cervical vertebra centrum forward movement operation.

Background

Posterior longitudinal ligament ossification is one of common spinal degenerative diseases, and with the aging degree of the current social population, the disease incidence of the posterior longitudinal ligament ossification is increased year by year, and the number of patient groups is huge. The posterior longitudinal ligament is a ligament between the posterior vertebral body and the vertebral canal, and when ossification occurs, spinal canal stenosis and intervertebral foramina stenosis are caused, which may cause the related clinical symptoms of limb movement disorder, numbness sensation, urination and defecation disorder, and the like. Posterior longitudinal ligament ossification is most commonly found in cervical spine, i.e., posterior longitudinal ligament ossification of cervical spine (OPLL), which has a high incidence in east asian population.

At present, surgical treatment is the best method for treating cervical vertebra posterior longitudinal ligament ossification. The common surgical methods include anterior cervical spine surgery, posterior cervical spine surgery, and anterior-posterior combined surgery. For example, the different operation modes of posterior cervical vertebroplasty, cervical laminectomy, anterior cervical vertebral subtotal resection, etc. have their advantages and disadvantages. The anterior surgery can directly remove the ossification substance to achieve the purpose of effective radical treatment, but the technical requirement is high, the risk is high, if the ossification substance is large, the dural sac tightly adhered to the ossification substance can be damaged in the surgery, complications such as cerebrospinal fluid leakage and spinal cord injury are caused, and many doctors are prohibited. Some scholars regard the vertebral canal stenosis rate of more than 50% and the ossification thickness of more than 5mm as contraindications of the anterior surgery. The posterior surgery has higher safety, but destroys the complete blood supply in the vertebral canal, and is not beneficial to spinal cord rehabilitation; the aim of palliative treatment can be achieved only by indirect decompression, and the curative effect of the operation is difficult to ensure; the spinal cord drifts backwards after the posterior decompression, and nerve roots are possibly excessively pulled to cause paralysis of the nerve roots after the operation, so that sensory activity disorder of upper limbs is caused, the risk of the current operation mode is higher, the operation is complicated, and the technical problem needs to be solved by a nail plate for anterior cervical vertebra centrum forward operation.

SUMMERY OF THE UTILITY MODEL

For solving foretell technical problem the utility model provides a cervical vertebra way centrum antedisplacement operation is with nail board, aim at solves the operation mode risk of present centrum antedisplacement operation higher, complex operation's technical problem moreover.

The utility model provides an above-mentioned technical problem's technical scheme does:

a nail plate for anterior cervical vertebra centrum advancing surgery comprises a bone fracture plate, wherein a reset nail groove is formed in the bone fracture plate, a plurality of spherical holes are formed in the bone fracture plate and are positioned on two sides of the bone fracture plate, and the reset nail groove is positioned between the spherical holes on the two sides;

the first bone screws are in one-to-one correspondence with the spherical holes and are movably matched with the spherical holes, and the first bone screws are used for fixing two sides of the bone fracture plate outside the vertebral body;

the reset screw is detachably arranged in the reset screw groove, one end of the reset screw is fixed outside the vertebral body, and the reset screw is used for lifting the vertebral body towards the direction close to the bone fracture plate.

When first bone screw fixes the coaptation board when external at the vertebra, the reduction screw passes the coaptation board to outside the fixed centrum of one end with the reduction screw, better behind the reduction screw of operation instrument pincers, to being close to the direction of coaptation board is carried the centrum forward and is drawn, carries the inboard of drawing the coaptation board with the centrum, thereby reaches the centrum and carries and draw antedisplacement effect, can effectually widen patient's cervical vertebra canalis led to the clearance, and the product structure is nimble, and easy operation can reduce operation doctor's the operation degree of difficulty, and practicality is strong.

Further, in the application, the bone fracture plate further comprises a second bone screw which is used for penetrating through the reduction nail groove to fix the middle part of the bone fracture plate outside the vertebral body.

When the reset screw is lifted, the reset screw exits from the fixed vertebral body, and the exit position of the reset screw is fixed through the second bone screw, so that the middle position of the bone fracture plate is fixed outside the vertebral body, and the lifted vertebral body is better fixed.

Further, in this application, the both sides of coaptation board are opened there is the fixed slot, two the fixed slot is located the left and right sides in nail groove that resets, two the fixed slot is located both sides between the sphere hole, worn the third bone screw in the fixed slot, the third bone screw will the interior both sides of coaptation board are fixed outside the vertebra, first bone screw will the outer both sides of coaptation board are fixed outside the vertebra.

Further, in this application, the first bone screw, the second bone screw and the third bone screw are each composed of a bone fixation column and a spherical column, the spherical column is formed at the upper end of the bone fixation column, the bone fixation column and the spherical column of the first bone screw sequentially pass through the spherical hole, the bone fixation column of the first bone screw is in threaded fit with the vertebral body, the spherical column of the first bone screw is in movable fit with the spherical hole, the upper end of the spherical column is provided with a bone screw rotating interface, and the bone screw rotating interface is used for rotating a nail driver.

Because the spherical hole is spherical, the spherical column of the first bone screw is disc-shaped, when the first bone screw passes through the bone fracture plate and is fixed on the vertebral body, the spherical column of the first bone screw is positioned in the spherical hole to move, so that the spherical column of the first bone screw can rotate and swing in the spherical hole of the spherical hole, and more fixed angles are obtained between the bone screw and the bone fracture plate; the screw rotating interface is used for matching with an upper screw driver in the surgical instrument, and the first bone screw is driven to be screwed in or out of the vertebral body by the upper screw driver.

Further, in this application, reset nail groove with the both sides of fixed slot are opened there are a plurality of spacing breach, spacing breach with second bone screw or third bone screw the shape phase-match of sphere post, second bone screw with third bone screw the sphere post with spacing breach grafting one by one.

Further, in this application, the outer both sides of coaptation board are opened there is the movable groove, the corresponding one side of movable groove intercommunication one by one the sphere hole, be equipped with rotatable anti-moving back separation blade in the movable groove, anti-moving back separation blade is used for blockking first bone screw rebound.

Further, in this application, the anti-retreat separation blade comprises blocking head and separation blade post, the shaping of separation blade post is in the lower extreme of blocking head, the movable groove internal shaping has the closure groove, the separation blade post passes the closure groove, the separation blade post with closure groove screw-thread fit, blocking head with movable groove normal running fit, the outer edge of blocking head extends to the top in sphere hole, it is used for blockking to block the head first bone screw rebound, it has separation blade rotating interface to block overhead opening, separation blade rotating interface is used for the top of driving screw.

Further, in this application, the outer edge of blocking head is opened has a plurality of screw in breachs, works as when blocking head is rotatory, the screw in breach with the sphere hole communicates one by one.

Further, in the application, the reset screw is formed by integrally forming a lifting column, a rotating column, a movable column and a reset fixing column from top to bottom, the reset fixing column is in threaded fit with the vertebral body, the movable column penetrates through the reset nail groove, the movable column is in sliding fit with the reset nail groove, the rotating column is used for rotating the upper nail sleeve, a lifting reset circular groove is formed outside the lifting column, the lifting reset circular groove is in a ring body shape, and the lifting reset circular groove is used for clamping and lifting the surgical tool forceps.

Further, in this application, the diameter ratio of the fixed post that resets is less than the diameter of activity post, the diameter ratio of activity post is great than the diameter of rotating post, the diameter ratio of rotating post is great than the diameter of pulling-up post.

The utility model discloses following beneficial effect has:

through coaptation board, first coaptation screw and reset screw for when first coaptation screw fixes the coaptation board outside the vertebra, reset screw passes the coaptation board, and outside the fixed centrum of the one end with reset screw, better behind the screw that resets through the apparatus centre gripping, to being close to the direction of coaptation board is with the centrum to being close to the direction of coaptation board is carried and is carried, thereby reaches the centrum and carries and carry the antedisplacement effect, can effectually widen patient's cervical vertebra canalis gapped, and the product structure is nimble, and easy operation can reduce the operation degree of difficulty of operation doctor, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural view of a nail plate for anterior cervical vertebral body anterior approach surgery in the present invention.

Fig. 2 is a schematic view showing a state where a third bone screw of the present invention is inserted into the fixing groove.

Fig. 3 is a schematic view of the state that the reduction screw is inserted into the reduction nail groove in the present invention.

Fig. 4 is a schematic structural view of the bone plate of the present invention.

Fig. 5 is a schematic structural view of the reduction screw of the present invention.

Fig. 6 is a schematic structural view of the first, second and third bone screws of the present invention.

Fig. 7 is a schematic structural view of the anti-receding blocking piece of the present invention.

Fig. 8 is a schematic view of the use process of the bone fracture plate of the present invention.

Wherein, the reference numbers:

1. a bone plate; 11. a spherical hole; 12. resetting the nail groove; 14. a fixing groove; 15. a limiting notch; 2. a first bone screw; 21. setting a bone fixation column; 22. a spherical column; 23. a bone-knitting rotating interface; 24. a second bone screw; 25. a third bone screw; 3. A back-proof baffle plate; 31. a catch column; 32. screwing in the notch; 33. the baffle plate rotates the interface; 34. a blocking head; 35. a locking groove; 36. a movable groove; 4. a reset screw; 41. resetting the fixed column; 42. rotating the column; 43. lifting and restoring the circular groove; 44. lifting the column; 45. a movable post; 5. a vertebral body.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1-8, in some embodiments, a nail plate for anterior cervical spine vertebral body 5 advancement surgery comprises a bone plate 1, wherein a reduction nail groove 12 is formed in the bone plate 1, a plurality of spherical holes 11 are formed in the bone plate 1, the spherical holes 11 are positioned on two sides of the bone plate 1, and the reduction nail groove 12 is positioned between the spherical holes 11 on the two sides;

the bone fracture plate comprises a first bone fracture screw 2, wherein the number of the first bone fracture screw 2 is multiple, the first bone fracture screws 2 correspond to spherical holes 11 one by one, the first bone fracture screws 2 are movably matched with the spherical holes 11, and the first bone fracture screws 2 are used for fixing two sides of the bone fracture plate 1 outside a vertebral body 5;

the reduction screw 4, the reduction screw 4 is detachably installed in reduction nail groove 12, and one end of reduction screw 4 is fixed outside centrum 5, and reduction screw 4 is used for lifting centrum 5 to the direction that is close to the coaptation board.

Through the technical scheme, when first bone screw 2 fixes coaptation board 1 when the centrum 5 is outer, reset screw 4 passes coaptation board 1 to outside the fixed centrum 5 of one end with reset screw 4, better behind the reset screw 4 of operation instrument pincers, to being close to bone plate 1's direction is carried centrum 5 forward and is carried, carries the inboard of drawing coaptation board 1 with centrum 5, thereby reaches centrum 5 and carries and draw antedisplacement effect, can effectually widen patient's cervical vertebra canalis gapped, and the product structure is nimble, and easy operation can reduce surgeon's the operation degree of difficulty, and practicality is strong.

In addition, the reduction screw 4 can also be replaced by other devices which are integrated with the fixed vertebral body 5 by electric lifting, so that after the device is driven out of the vertebral body 5 by electric driving, the vertebral body 5 can be also lifted forwards by electric lifting, and the effect of lifting and pulling the vertebral body 5 forwards is achieved.

Referring to fig. 1-2, in some embodiments, a second bone screw 24 is included, the second bone screw 24 being used to secure the middle portion of the bone plate 1 outside the vertebral body 5 through the reduction nail slot 12.

Through the technical scheme, after the reduction screw 4 is pulled, the reduction screw 4 exits from the vertebral body 5, and the exit position of the reduction screw 4 is fixed through the second bone screw 24, so that the middle position of the bone fracture plate 1 is fixed outside the vertebral body 5, and the pulled vertebral body 5 is better fixed.

Referring to fig. 1, in some embodiments, the bone plate 1 has fixing grooves 14 formed on both sides thereof, two fixing grooves 14 are formed on both left and right sides of the reduction nail groove 12, two fixing grooves 14 are formed between the spherical holes 11 on both sides, a third bone screw 25 penetrates through the fixing groove 14, the third bone screw 25 fixes both inner sides of the bone plate 1 outside the vertebral body 5, and the first bone screw 2 fixes both outer sides of the bone plate 1 outside the vertebral body 5.

Through the technical scheme, the possibly required bone fracture plate 1, the first bone fracture screw 2, the second bone fracture screw 24, the third bone fracture screw 25 and the reset screw 4 are prepared according to the actual condition of a patient before operation, a part of the front edge of the vertebral body 5 is ground by an operation grinding drill, the bone fracture plate 1 corresponds to the vertebral body 5, one section of the vertebral body 5 needing the operation of advancing the vertebral body 5 corresponds to the reset nail groove 12, two sides of the bone fracture plate 1 are fixed outside the vertebral body 5 through the first bone fracture screw 2, the reset screw 4 penetrates through the bone fracture plate 1, one end of the reset screw 4 is fixed on one section of the vertebral body 5 needing the operation of advancing the vertebral body 5, the tail end of the reset screw 4 is clamped by an operation tool clamp, the vertebral body 5 is pulled forwards (as shown by an arrow in figure 8), the vertebral body 5 is close to the inner side of the bone fracture plate 1, two sides of the middle part of the bone fracture plate 1 are fixed outside the vertebral body 5 through the third bone fracture screw 25, the reset screw 4 is withdrawn, the second bone fracture screw 24 is screwed in accordance with the hole of the reset screw 4, the section of the vertebral body 5 and the bone fracture plate 1 can effectively prevent spinal cord and the spinal cord 5.

Referring to fig. 6, in some embodiments, each of the first bone screw 2, the second bone screw 24 and the third bone screw 25 comprises a bone fixing column 21 and a spherical column 22, the spherical column 22 is formed at the upper end of the bone fixing column 21, the bone fixing column 21 and the spherical column 22 of the first bone screw 2 sequentially pass through the spherical hole 11, the bone fixing column 21 of the first bone screw 2 is in threaded fit with the vertebral body 5, the spherical hole 11 is spherical, the spherical column 22 of the first bone screw 2 is disc-shaped, the spherical column 22 of the first bone screw 2 is movably fitted with the spherical hole 11, the upper end of the spherical column 22 is provided with a bone screw interface 23, and the bone screw interface 23 is used for screwing on a nail driver.

Through the technical scheme, as the spherical hole 11 is spherical, the spherical column 22 of the first bone screw 2 is disc-shaped, when the first bone screw 2 penetrates through the bone fracture plate 1 and the first bone screw 2 is screwed into the vertebral body 5, the spherical column 22 of the first bone screw 2 is positioned in the spherical hole 11 to move, so that the spherical column 22 of the first bone screw 2 can rotate and swing in the spherical hole of the spherical hole 11, and more fixed angles are obtained between the first bone screw 2 and the bone fracture plate 1; the bone screw interface 23 is used for matching with an upper screw driver in a surgical instrument, the first bone screw 2 is driven by the upper screw driver to screw in or screw out the vertebral body 5, and the shape of the bone screw interface 23 can be cross, cloverleaf, hexagon or quincunx, etc.

Referring to fig. 1-4, in some embodiments, a plurality of limiting notches 15 are formed on two sides of the reduction nail groove 12 and the fixing groove 14, the shape of the limiting notch 15 matches the shape of the spherical post 22 of the second bone screw 24 or the third bone screw 25, the shape of the spherical posts 22 of the second bone screw 24 and the third bone screw 25 is disc-shaped, the shape of the limiting notch 15 is arc-shaped, and the spherical posts 22 of the second bone screw 24 and the third bone screw 25 are inserted into the limiting notches 15 one by one.

Through the technical scheme, when the second bone screw 24 passes through the reset nail groove 12, the bone fixing column 21 of the second bone screw 24 is in threaded fit with the vertebral body 5, and the spherical column 22 of the second bone screw 24 is inserted into the limiting notch 15 of the reset nail groove 12, so that the position of the spherical column 22 of the second bone screw 24 is limited; when the third bone screw 25 passes through the fixing groove 14, the bone fixing column 21 of the third bone screw 25 is in threaded fit with the vertebral body 5, the spherical column 22 of the third bone screw 25 is inserted into the limiting notch 15 of the fixing groove 14, thereby limiting the position of the spherical column 22 of the third bone screw 25,

referring to fig. 1-3, in some embodiments, the bone plate 1 has movable slots 36 formed on two outer sides thereof, the movable slots 36 are communicated with the spherical holes 11 on the corresponding sides, and rotatable anti-back-off blades 3 are disposed in the movable slots 36, and the anti-back-off blades 3 are used for blocking the first bone screws 2 from moving upwards.

Referring to fig. 1-4 and fig. 7, in some embodiments, the anti-retreat flap 3 is composed of a blocking head 34 and a flap column 31, the flap column 31 is formed at the lower end of the blocking head 34, a locking groove 35 is formed in a movable groove 36, the flap column 31 passes through the locking groove 35, the flap column 31 is in threaded fit with the locking groove 35, the blocking head 34 is in rotational fit with the movable groove 36, the outer edge of the blocking head 34 extends above the spherical hole 11, the blocking head 34 is used for blocking the first bone screw 2 from moving upwards, a flap rotation interface 33 is formed on the blocking head 34, and the flap rotation interface 33 is used for screwing up a nail driver.

Referring to fig. 7, in some embodiments, the blocking head 34 has a plurality of screwing notches 32 formed on an outer edge thereof, and when the blocking head 34 rotates, the screwing notches 32 communicate with the spherical holes 11 one by one.

Through the technical scheme, the baffle plate column 31 is in threaded fit with the locking groove 35 of the bone plate 1, and the blocking head 34 and the bone plate 1 are fixed together; when the screwing notch is aligned with the spherical hole 11 of the bone plate 1, the first bone screw 2 can avoid the blocking head 34 and be screwed into the spherical hole 11 normally, so that the screwing notch is staggered with the spherical hole 11, and the blocking head 34 can prevent the first bone screw 2 from withdrawing upwards as the outer edge of the blocking head 34 extends to the upper part of the spherical hole 11; the blocking piece rotating interface 33 is used for matching with a blocking piece screwdriver in a surgical instrument, in the operation, after the first bone screw 2 is screwed into the spherical hole 11 of the bone plate 1, the blocking piece rotating interface 33 is rotated by the nail screwdriver, the blocking head 34 can cover the spherical hole 11 to prevent the first bone screw 2 from withdrawing upwards, and the blocking piece rotating interface 33 can be in a straight line shape, a cross shape, a cloverleaf shape and the like.

Referring to fig. 5, in some embodiments, the reduction screw 4 is formed by a lifting column 44, a rotating column 42, a movable column 45 and a reduction fixing column 41 integrally from top to bottom, the reduction fixing column 41 is in threaded fit with the vertebral body 5, the movable column 45 passes through the reduction nail groove 12, the movable column 45 is in sliding fit with the reduction nail groove 12, the rotating column 42 is used for rotating the upper nail sleeve, the lifting column 44 is externally provided with a lifting reduction circular groove 43, the lifting reduction circular groove 43 is in a circular ring shape, and the lifting reduction circular groove 43 is used for clamping and lifting the surgical tool forceps.

Through the technical scheme, the reset screw 4 is used for screwing into the vertebral body 5, the reset screw 4 is fixed on the vertebral body 5, and then the reset screw 4 is used for driving the vertebral body 5 to move towards the direction close to the bone fracture plate 1; the rotating column 42 is used for matching with the upper nail sleeve, the reset screw 4 is driven by the upper nail sleeve to be screwed in or out of the vertebral body 5, and the shape of the rotating column 42 can be quadrilateral, hexagonal and the like; the surgical tool is used for clamping and pulling the reset circular groove 43 to pull the reset screw 4, and the reset screw 4 drives the vertebral body 5 to move forwards.

Referring to fig. 5, in some embodiments, the diameter of the reset fixing post 41 is smaller than that of the movable post 45, the diameter of the movable post 45 is larger than that of the rotating post 42, and the diameter of the rotating post 42 is larger than that of the pull-up post 44.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (10)

1. A nail plate for anterior cervical vertebral body advancing surgery, comprising:

the bone fracture plate is internally provided with a reset nail groove, the bone fracture plate is internally provided with a plurality of spherical holes, the spherical holes are positioned on two sides of the bone fracture plate, and the reset nail groove is positioned between the spherical holes on the two sides;

the first bone screws are in one-to-one correspondence with the spherical holes and are movably matched with the spherical holes, and the first bone screws are used for fixing two sides of the bone fracture plate outside the vertebral body;

the reset screw is detachably installed in the reset screw groove, one end of the reset screw is fixed outside the vertebral body, and the reset screw is used for lifting the vertebral body towards the direction close to the bone fracture plate.

2. The nail plate for the anterior cervical vertebral body advancement surgery according to claim 1, further comprising a second bone screw for fixing the middle portion of the bone plate outside the vertebral body through the reduction nail groove.

3. The nail plate for anterior cervical vertebral body forward movement surgery according to claim 2, wherein fixing grooves are formed on two sides of the bone plate, two fixing grooves are formed on the left side and the right side of the reset nail groove, two fixing grooves are formed between the spherical holes on the two sides, a third bone screw penetrates through the fixing grooves, the third bone screw fixes the two inner sides of the bone plate outside the vertebral body, and the first bone screw fixes the two outer sides of the bone plate outside the vertebral body.

4. The nail plate for anterior cervical vertebral body forward shift surgery according to claim 3, wherein the first, second and third bone screws are all composed of a bone fixation column and a spherical column, the spherical column is formed at the upper end of the bone fixation column, the bone fixation column and the spherical column of the first bone screw sequentially pass through the spherical hole, the bone fixation column of the first bone screw is in threaded fit with the vertebral body, the spherical column of the first bone screw is in movable fit with the spherical hole, the upper end of the spherical column is provided with a bone screw rotating interface, and the bone screw rotating interface is used for screwing a screw driver.

5. The nail plate for the anterior cervical vertebral body forward movement surgery according to claim 4, wherein a plurality of limiting notches are formed on two sides of the reset nail groove and the fixing groove, the limiting notches are matched with the spherical columns of the second bone screw or the third bone screw in shape, and the spherical columns of the second bone screw and the third bone screw are in one-to-one insertion connection with the limiting notches.

6. The nail plate for the anterior cervical vertebral body advancement surgery according to claim 4, wherein the bone plate is provided with movable grooves on two outer sides, the movable grooves are communicated with the spherical holes on the corresponding sides one by one, and rotatable anti-back blocking pieces are arranged in the movable grooves and used for blocking the first bone screws from moving upwards.

7. The nail plate for anterior cervical vertebral body advancement according to claim 6, wherein the anti-withdrawal blocking plate is composed of a blocking head and a blocking post, the blocking post is formed at the lower end of the blocking head, a locking groove is formed in the movable groove, the blocking post passes through the locking groove, the blocking post is in threaded fit with the locking groove, the blocking head is in rotational fit with the movable groove, the outer edge of the blocking head extends above the spherical hole, the blocking head is used for blocking the first bone screw from moving upwards, the blocking head is provided with a blocking plate rotating interface, and the blocking plate rotating interface is used for rotating a nail driver.

8. The nail plate for anterior cervical vertebral body advancement surgery according to claim 7, wherein the blocking head has a plurality of screwing notches formed on the outer edge thereof, and when the blocking head rotates, the screwing notches are in one-to-one communication with the spherical hole.

9. The nail plate for the anterior cervical vertebral body advancement surgery according to claim 1, characterized in that the reset screw is integrally formed from a lifting column, a rotating column, a movable column and a reset fixing column from top to bottom, the reset fixing column is in threaded fit with the vertebral body, the movable column passes through the reset nail groove, the movable column is in sliding fit with the reset nail groove, the rotating column is used for rotating the upper nail sleeve, a lifting reset circular groove is formed outside the lifting column, the lifting reset circular groove is in a ring shape, and the lifting reset circular groove is used for holding and lifting the forceps holder of a surgical tool.

10. The nail plate for anterior cervical vertebral body advancement surgery according to claim 9, wherein the diameter of the reduction fixation post is smaller than the diameter of the movable post, the diameter of the movable post is larger than the diameter of the rotation post, and the diameter of the rotation post is larger than the diameter of the pull-up post.

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