CN115363730A - Special anterior reduction screw bone plate structure for cervical dislocation - Google Patents

Abstract

The invention discloses a special anterior reduction screw bone plate structure for cervical dislocation, which belongs to the technical field of anterior reduction screw bone plate structure. Standard, adjust the distance between the second cervical vertebra fixed plate and the first cervical vertebra fixed plate, pull the first cervical vertebra fixed plate and the second cervical vertebra fixed plate to adjust the position of the side limit rod on the second cervical vertebra fixed plate and the first cervical vertebra fixed plate Adjust so that the two sets of second penetration limit openings are respectively aligned to the middle of the two sets of cervical vertebrae, adjust the fixing screw to fix the side limit rod, and then unfold the first rotation limit strip and the second rotation limit strip on the side On the inner side of the bar mouth, the triangular outer convex frame is rotated to adjust the movement of the adjusting turntable, and then drives the hinge rod to adjust the adjusting card plate to protrude and insert into the inner side of the end slot. The structural design of three screws on one side of the patent design is to strengthen the fixing strength.

Description

A special anterior reduction screw bone plate structure for cervical dislocation

technical field

The invention relates to an anterior reduction screw bone plate structure, in particular to a special anterior reduction screw bone plate structure for cervical dislocation, belonging to the technical field of anterior reduction screw bone plate structure.

Background technique

Bilateral facet joint dislocation of the cervical spine is a typical flexion injury, which can occur at any segment between C2 and T1, but it is most common at segments below C4, usually due to damage to the head and neck in accidents. The cervical spine is misaligned due to a heavy blow or force from an external force.

In the prior art, the special anterior reduction screw bone plate for cervical dislocation has various structures, but there are the following problems;

The distance between the cervical spine fixation plates cannot be adjusted, and the length and size are often determined. Although this design is a specially formulated size, the adaptability is relatively low and cannot be adjusted, which also makes the distance between the vertebrae impossible. fine-tuning;

In the prior art, when the cervical spine is fixed, although the screw can be limited to avoid the problem of sliding, the fixation is not stable enough and does not achieve the interlocking function;

The fixation strength of the anterior reduction screw bone plate structure in the prior art may require two front and rear operations, and it is easy to dislocate;

Therefore, a special anterior reduction screw bone plate structure for cervical dislocation is designed to solve the above problems.

Contents of the invention

The main purpose of the present invention is to provide a special anterior reduction screw bone plate structure for cervical dislocation. According to the measurement of the distance between the middle parts of the two groups of cervical vertebrae, and then take the second through-limiting opening as the center reference point as the standard, adjust the second cervical vertebra fixation The distance between the plate and the first cervical vertebra fixed plate, pull the first cervical vertebra fixed plate and the second cervical vertebra fixed plate to adjust the position of the side limit rod on the second cervical vertebra fixed plate and the first cervical vertebra fixed plate, and then adjust to make the two groups of second through The limit openings are respectively aligned to the middle of the two groups of cervical vertebrae, adjust the fixing screw to fix the side limit rods, and then spread out the first rotation limit strip and the second rotation limit strip on the inner side of the side strip openings, and rotate the triangular The outer convex frame adjusts and adjusts the movement of the turntable, and then drives the hinge rod to adjust the adjustment card plate to protrude and insert into the inner side of the end slot, and through the cooperation of the limit spring of the limit card rod, insert the limit card rod into the through hole to adjust the card plate Positioning is carried out by adjusting the clamping plate to press and hold the second rotation limiting bar and the first rotating limiting bar to press and limit the reinforcing fixing screw and the pulling head end vertebral body lag screw.

The purpose of the present invention can be achieved by adopting the following technical solutions:

A special anterior reduction screw bone plate structure for cervical dislocation, comprising an arc-shaped middle connector, a second cervical vertebra fixation plate and a first cervical vertebra fixation plate, and the ends on both sides of the arc-shaped middle connector are connected to the second cervical vertebra fixation plate. An adjustable plate assembly is provided between the cervical spine fixation plate and the first cervical spine fixation plate, and the fronts of the second cervical spine fixation plate and the first cervical spine fixation plate are provided with concave through-hole components that form a triangular angular distribution. A fixing component is inserted into the through hole component, and a groove component is opened on the top of the second cervical vertebra fixing plate and the first cervical vertebra fixing plate and on the side line of the triangle formed by the concave through hole component, and the groove component is formed on the second cervical vertebra fixing plate. The opening of the cervical spine fixation plate or the first cervical spine fixation plate forms a triangular convex frame, the interior of the triangular convex frame is provided with an adjustment plate assembly, and the output end of the adjustment plate assembly straddles the bar groove assembly and is inserted into the bar groove The inner wall of the groove assembly, and the inner wall of the groove assembly is provided with a clamping assembly, and the outer end of the fixed assembly is provided with a rotation plate that can be fitly inserted into the groove assembly and limited by the adjusting plate assembly. Adjustment rod assembly.

Preferably, the adjustable plate assembly includes a side limit rod, an end socket and a fixing screw, and the inner two ends of the first cervical vertebra fixing plate and the second cervical vertebra fixing plate are provided with end sockets, and the inner sides of the end sockets A side limit rod that can slide inside the end socket is inserted, the outer ends of the side limit rod are fixed at the ends on both sides of the arc-shaped middle connector, the first cervical vertebra fixing plate and The front surface of the second cervical vertebra fixing plate is located above the end socket, and a fixing screw rod cooperating with the side limiting rod is penetrated and engaged.

Preferably, the concave through-hole assembly includes a first annular inner groove, a first through-limiting opening and a second through-limiting opening, and the second cervical vertebra fixing plate and the first cervical vertebra fixing plate are near the two sides of the edge Both are provided with first through-limiting openings, and the middle of the second cervical spine fixing plate and the first cervical spine fixing plate are provided with second through-limiting openings, and two sets of first through-limiting openings and one set of second through-limiting openings The limit openings form a triangular distribution structure, and the opening edges of the first through limit opening and the second through limit opening are inclined downward to form a first annular inner groove and a second annular inner groove respectively.

Preferably, the fixing assembly includes a rod cap, a pulling head-end vertebral body lag screw and a reinforcing fixing screw, the top of the pulling head-end vertebral body lag screw is integrally formed with a rod cap, and the top of the reinforcing fixing screw is also integrally formed There is a rod cap, the vertebral body lag screw and the reinforcing fixing screw at the end of the lifting head respectively pass through the first through-limiting opening and the second through-limiting opening, and the bottom of the rod cap fits in the first annular concave groove and the inner wall of the second annular inner groove.

Preferably, the groove assembly includes a side strip opening and an L-shaped high and low groove, and the triangular distribution structure formed by the first annular inner groove and the second annular inner groove is provided with a side strip opening connected to form a triangular groove shape. structure, and an L-shaped high and low groove structure is opened in the side strip opening along the lateral direction of the side strip opening to cooperate with the rotation adjustment rod assembly.

Preferably, the adjustment plate assembly includes an adjustment dial, a hinged rod, a limit slide rail, an adjustment clamp and an adjustment screw, the top middle of the triangular outer convex frame is provided with an adjustment screw, and the adjustment screw is connected to the triangular outer protrusion. The frames are connected by bearings, the bottom of the adjusting screw rod is equipped with an adjusting dial, the outer edge of the triangular outer convex frame is hinged with a hinge rod, and the middle part of the inner bottom edge of the triangular outer convex frame is installed with a limit slide rail, the inner side of the limit slide rail is provided with an adjustment clip that can slide on the inside of the limit slide rail, one end of the adjustment clip is hinged to one end of the hinge rod, and the adjustment clip The other end and the card position component.

Preferably, the locking component includes an end slot, a sliding cylinder, a limit spring, a limit bar and a through opening, and the inside of the second cervical spine fixation plate is provided with an opening close to the side bar opening to cooperate with the adjustment clamping plate. The end slot of the end slot is equipped with a sliding cylinder in the middle of the inner side of the end slot, and a limiting spring is installed at the inner end of the sliding cylinder, and a limiting clamping rod is installed at the end of the limiting spring. A through opening is opened at the end of the adjusting clip, and the limiting locking rod cooperates with the through opening.

Preferably, the rotation adjustment rod assembly includes a first outer collar, a first rotation limiting strip, a second rotation limiting strip and a second outer collar, and the reinforcing fixing screw and the top of the outer side of the pulling head-end vertebral body lag screw Both are equipped with a first outer ring and a second outer ring, a second rotation limiting strip is installed on the outer side of one set of first outer rings, and a first rotation limiting bar is installed on the outer side of another set of second outer rings, and all The first rotation limiting bar is located at the low end of the L-shaped high and low bar groove, and the second rotating limiting bar is located at the high end of the L-shaped high and low bar groove.

Preferably, the bottoms of the second cervical spine fixation plate and the first cervical spine fixation plate are provided with inner grooves, the arc-shaped middle connecting piece is a concave hollow structure, and the second cervical spine fixation plate and the first cervical spine fixation plate The middle part of the board is a concave structure.

Preferably, the anterior reduction screw bone plate structure also includes the following usage methods:

Step 1: Measure the distance between the middle parts of the two groups of cervical vertebrae, and then adjust the distance between the second cervical vertebrae fixing plate and the first cervical vertebrae fixing plate by taking the second penetrating limit opening as the center reference point as the standard;

Step 2: Pull the first cervical spine fixation plate and the second cervical spine fixation plate to adjust the positions of the side limit rods on the second cervical spine fixation plate and the first cervical spine fixation plate, and then adjust the positions of the second penetration limit openings of the two groups to The middle of the two groups of cervical vertebrae;

Step 3: Adjust the fixing screw to fix the side limit rod, and then spread out the first rotation limit strip and the second rotation limit strip on the inner side of the side strip opening;

Step 4: Rotate the triangular outer convex frame to adjust the movement of the adjustment turntable, and then drive the hinge rod to adjust the adjustment card plate to extend out and insert it into the inner side of the end slot;

Step 5: Through the cooperation of the limit spring of the limit clamp rod, insert the limit clamp rod into the through opening to position the adjustment clamp plate;

Step 6: Press and hold the second rotation limit bar and the first rotation limit bar by adjusting the clamping plate to press and limit the reinforcement fixing screw and the vertebral body lag screw at the lifting head end.

Beneficial technical effect of the present invention:

The present invention provides a special anterior reduction screw bone plate structure for cervical dislocation. Based on measuring the distance between the middle parts of two groups of cervical vertebrae, and then taking the second penetrating limit opening as the center reference point as the standard, adjust the second cervical vertebra fixation plate and the first The distance between the cervical spine fixation plates is adjusted by pulling the first cervical spine fixation plate and the second cervical spine fixation plate to adjust the positions of the side limit rods on the second cervical spine fixation plate and the first cervical spine fixation plate so that the two sets of second penetration limit openings respectively Align to the middle of the two groups of cervical vertebrae, adjust the fixing screw to fix the side limit rod, then unfold the first rotation limit strip and the second rotation limit strip on the inner side of the side strip opening, and rotate the triangular outer convex frame to adjust Adjust the movement of the turntable, and then drive the hinge rod to adjust the adjustment clamp to extend out and insert it into the inner side of the end slot. Through the cooperation of the limit spring of the limit clamp rod, insert the limit clamp rod into the through opening to position the adjustment clamp plate. Adjust the clamping plate to press the second rotation limit bar and the first rotation limit bar to press and limit the reinforcement fixing screw and the pulling head vertebral body lag screw. The structural design of the three screws on one side of the patent design is for Strengthen the fixing strength.

Description of drawings

Fig. 1 is a schematic diagram of the overall first perspective perspective structure of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 2 is a schematic diagram of the stereoscopic structure of the whole device in a second angle of view of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 3 is a schematic diagram of the stereoscopic structure of the whole device in a third angle of view of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 4 is an enlarged view of the structure at a of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

5 is a schematic diagram of the three-dimensional structure of the fixation screw assembly of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 6 is a side sectional view of a fixation screw assembly of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 7 is an enlarged view of the structure at b of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 8 is a top sectional view of a cervical spine fixation plate according to a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 9 is an enlarged view of the structure at c of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 10 is an enlarged view of the structure at d of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention;

Fig. 11 is a schematic diagram of a side bar opening structure of a preferred embodiment of a special anterior reduction screw bone plate structure for cervical dislocation according to the present invention.

In the figure: 1-arc-shaped middle connector, 2-side limit rod, 3-first cervical vertebra fixing plate, 4-second cervical vertebra fixing plate, 5-fixing screw, 6-vertebral body lag screw at the lifting head, 7-reinforcing fixing screw, 8-inner groove, 9-the first through-limiting opening, 10-the second through-limiting opening, 11-the first annular inner groove, 12-the second annular inner groove, 13- Triangular outer convex frame, 14-adjusting screw, 15-rod cap, 16-side bar opening, 17-adjusting clamping plate, 18-first rotation limit bar, 19-second rotation limit bar, 20-first jacket Ring, 21-second outer ring, 22-end socket, 23-adjustment dial, 24-hinge rod, 25-limit spring, 26-limit slide rail, 27-end slot, 28-through opening, 29- Limit card rod, 30-sliding cylinder.

Detailed ways

In order to make the technical solutions of the present invention clearer and clearer to those skilled in the art, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in Figures 1-11, this embodiment provides a special anterior reduction screw bone plate structure for cervical dislocation, including an arc-shaped middle connector 1, a second cervical spine fixation plate 4, and a first cervical spine fixation plate 3. An adjustable plate assembly is provided between the two side ends of the connecting piece 1 and the second cervical spine fixation plate 4 and the first cervical spine fixation plate 3, and the fronts of the second cervical spine fixation plate 4 and the first cervical spine fixation plate 3 are provided with There is a concave through-hole component that forms a triangular angular distribution, and a fixing component is inserted into the concave through-hole component. A bar groove assembly is opened on the side line, and the opening of the bar groove assembly on the second cervical vertebra fixing plate 4 or the first cervical vertebra fixing plate 3 forms a triangular outer convex frame 13, and the interior of the triangular outer convex frame 13 is provided with an adjustment plate assembly , and the output end of the adjusting plate assembly straddles the slot assembly and is inserted into the inner wall of the slot assembly, and the inner wall of the slot assembly is provided with a clamping assembly, and the outer end of the fixing assembly is provided with a The rotation adjustment rod assembly limited by the adjustment plate assembly in the bar groove assembly.

According to the measurement of the distance between the middle parts of the two groups of cervical vertebrae, and then taking the second penetration limit opening 10 as the center reference point as the standard, adjust the distance between the second cervical vertebrae fixing plate 4 and the first cervical vertebrae fixing plate 3, and pull the first cervical vertebrae fixing plate 3 and The second cervical spine fixation plate 4 adjusts the position of the side limit rod 2 on the second cervical spine fixation plate 4 and the first cervical spine fixation plate 3 and then adjusts so that the two sets of second penetration limit openings 10 are respectively aligned to the middle of the two sets of cervical spines At the position, adjust the fixing screw 5 to fix the side limit rod 2, then spread out the first rotation limit strip 18 and the second rotation limit strip 19 on the inner side of the side strip opening 16, and rotate the triangular outer convex frame 13 to adjust the adjustment dial 23 to move, and then drive the hinge rod 24 to adjust the adjustment card plate 17 to stretch out and be inserted into the inner side of the end slot 27, and through the cooperation of the limit spring 25 of the limit clamp lever 29, the limit clamp lever 29 is inserted into the through opening 28. Adjust the clamping plate 17 for positioning, press and hold the second rotation limiting bar 19 and the first rotating limiting bar 18 by adjusting the clamping plate 17 to press and limit the reinforcing fixing screw 7 and the pulling head end vertebral body lag screw 6, The structural design of three screws on one side of the patent design is to strengthen the fixing strength.

In this embodiment, the adjustable plate assembly includes a side limit rod 2, an end socket 22 and a fixing screw 5, and the inner two ends of the first cervical vertebra fixing plate 3 and the second cervical vertebra fixing plate 4 are provided with end sockets 22, And the inside of this end socket 22 is inserted with the side stop rod 2 that can slide in the inside of the end socket 22, the outer end of the side stop rod 2 is fixed at the ends of the two sides of the connector 1 in the arc shape, the first The front of the cervical vertebra fixing plate 3 and the second cervical vertebra fixing plate 4 and located above the end socket 22 are penetrated and engaged with a fixing screw rod 5 cooperating with the side limiting rod 2 .

In this embodiment, the concave through-hole assembly includes a first annular inner groove 11, a first through-limiting opening 9 and a second through-limiting opening 10, and the second cervical vertebra fixing plate 4 and the first cervical vertebra fixing plate 3 are close to each other. Both sides of the edge are provided with a first through-limiting opening 9, and the middle of the second cervical vertebra fixing plate 4 and the first cervical vertebra fixing plate 3 are provided with a second through-limiting opening 10, and the two groups of first through-limiting openings The opening 9 and a group of second through-limiting openings 10 form a triangular distribution structure, and the opening edges of the first through-limiting opening 9 and the second through-limiting opening 10 slope downward to form first annular inner grooves respectively. 11 and the second annular inner groove 12.

In this embodiment, the fixing assembly includes a rod cap 15, a pulling head-end vertebral body lag screw 6 and a reinforcing fixing screw 7, and the top of the pulling head-end vertebral body lag screw 6 is integrally formed with a rod cap 15, and reinforcing fixing screws 7 The top of the top is also integrally formed with a rod cap 15, and the vertebral body lag screw 6 and the reinforcing fixing screw 7 of the lifting head end respectively penetrate through the first through-limiting opening 9 and the second through-limiting opening 10, and the bottom of the rod cap 15 fits on the At the inner walls of the first annular inner groove 11 and the second annular inner groove 12 .

In this embodiment, the groove assembly includes a side strip opening 16 and an L-shaped high and low groove. The triangular distribution structure formed by the first annular inner groove 11 and the second annular inner groove 12 is provided with a side strip opening 16 for connection. It forms a triangular groove structure, and an L-shaped high and low groove structure is provided in the side strip opening 16 along the lateral direction of the side strip opening 16 to cooperate with the rotation adjustment rod assembly.

In this embodiment, the adjustment plate assembly includes an adjustment dial 23, a hinged rod 24, a limit slide rail 26, an adjustment clamp 17, and an adjustment screw 14, and the adjustment screw 14 runs through the top middle of the triangular outer convex frame 13, and The adjusting screw rod 14 is connected with the triangular outer convex frame 13 by a bearing, the bottom of the adjusting screw rod 14 is equipped with an adjusting dial 23, the outer edge of the triangular outer convex frame 13 is hinged with a hinge rod 24, and the inner side of the triangular outer convex frame 13 Limit slide rail 26 is installed at the bottom edge middle part, and the inboard of limit slide rail 26 is provided with the adjusting clamp 17 that can slide in limit slide rail 26 inboards, and one end of adjusting clamp 17 is hinged with an end of hinge rod 24, adjusts The other end of the card board 17 and the card position assembly.

In this embodiment, the clamping assembly includes an end slot 27, a sliding cylinder 30, a limit spring 25, a limit lever 29 and a through opening 28, and the inside of the second cervical vertebra fixing plate 4 is provided with a The end slot 27 that cooperates with the adjustment clamp 17, the inner middle part of the end slot 27 is equipped with a sliding cylinder 30, the inner end of the sliding cylinder 30 is equipped with a limit spring 25, and the end of the limit spring 25 is installed The limiting clamping rod 29 is provided with a through opening 28 at the end of the adjusting clamping plate 17 , and the limiting clamping rod 29 and the through opening 28 cooperate with each other.

In this embodiment, the rotation adjustment rod assembly includes a first outer collar 20, a first rotation limiting strip 18, a second rotation limiting strip 19, a second outer collar 21, a reinforcing fixing screw 7 and a lifting head end cone A first outer collar 20 and a second outer collar 21 are installed at the top of the outer side of the lag screw 6, the outer side of one set of first outer collar 20 is provided with a second rotation limiting bar 19, and the outer side of another set of second outer collar 21 The first rotation limiting bar 18 is installed on the outside, and the first rotating limiting bar 18 is located at the low end of the L-shaped high and low bar groove, and the second rotating limiting bar 19 is located at the high end of the L-shaped high and low bar groove.

In this embodiment, the bottoms of the second cervical spine fixation plate 4 and the first cervical spine fixation plate 3 are provided with inner grooves 8, and the arc-shaped connecting piece 1 is a concave hollow structure. The second cervical spine fixation plate 4 and the first cervical spine fixation plate The central part of the cervical spine fixation plate 3 is a concave structure.

In this embodiment, the anterior reduction screw bone plate structure also includes the following usage methods:

Step 1: Measure the distance between the middle parts of the two groups of cervical vertebrae, and then adjust the distance between the second cervical vertebrae fixing plate 4 and the first cervical vertebrae fixing plate 3 with the second penetration limit opening 10 as the center reference point as the standard;

Step 2: Pull the first cervical spine fixation plate 3 and the second cervical spine fixation plate 4 to adjust the position of the side limit rod 2 on the second cervical spine fixation plate 4 and the first cervical spine fixation plate 3 and then adjust to make the two sets of second penetration limit Mouth 10 is respectively aligned to the middle of the two groups of cervical vertebrae;

Step 3: Adjust the fixing screw 5 to fix the side limit rod 2, and then unfold the first rotation limit strip 18 and the second rotation limit strip 19 on the inner side of the side strip opening 16;

Step 4: Rotate the triangular outer convex frame 13 to adjust the movement of the adjustment dial 23, and then drive the hinge rod 24 to adjust the adjustment clamp plate 17 and insert it into the inner side of the end slot 27;

Step 5: through the cooperation of the limit spring 25 of the limit clamp rod 29, insert the limit clamp rod 29 into the through opening 28 to position the adjustment clamp plate 17;

Step 6: Press and hold the second rotation limiting bar 19 and the first rotation limiting bar 18 by adjusting the clamping plate 17 to press and limit the reinforcing fixing screw 7 and the pulling head-end vertebral body lag screw 6 .

The above are only further embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field shall, within the scope disclosed by the present invention, make further improvements according to the technical scheme of the present invention and its design. Equivalent replacements or changes all belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a special way reduction screw hone lamella structure before cervical vertebra dislocation which characterized in that: connecting piece (1), second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3) in including the arc, the both sides tip department of connecting piece (1) in the arc with be equipped with adjustable plate subassembly between second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3), the front of second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3) is equipped with the interior recess through-hole subassembly that constitutes triangle-shaped angular position distribution, has inserted fixed subassembly in this interior recess through-hole subassembly, the top of second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3) just is located the triangle-shaped side line that the interior recess through-hole subassembly constitutes and has seted up the bar groove subassembly to set up on second cervical vertebra fixed plate (4) or first cervical vertebra fixed plate (3) by the bar groove subassembly and constitute triangle-shaped protruding frame (13), the inside of triangle-shaped protruding frame (13) is equipped with the regulating plate subassembly, and the output of regulating plate subassembly spanes the bar groove subassembly and inserts to the inner wall of bar groove subassembly, and the inner wall portion of this bar groove subassembly is equipped with the screens subassembly, the outer tip department of fixed subassembly is equipped with can insert the regulation bar groove subassembly is by the rotatory regulation subassembly.

2. The special anterior reduction screw bone plate structure for cervical dislocation according to claim 1, characterized in that: the adjustable plate component comprises side limiting rods (2), end sockets (22) and fixing screw rods (5), the end sockets (22) are arranged at two ends of the inner sides of the first cervical vertebra fixing plate (3) and the second cervical vertebra fixing plate (4), the side limiting rods (2) capable of sliding on the inner sides of the end sockets (22) are inserted into the inner sides of the end sockets (22), the outer end portions of the side limiting rods (2) are fixed at the end portions of two sides of the connecting piece (1) in the arc shape, and the fixing screw rods (5) matched with the side limiting rods (2) are meshed with the front sides of the first cervical vertebra fixing plate (3) and the second cervical vertebra fixing plate (4) in a penetrating mode and located above the end sockets (22).

3. The bone plate structure of the special anterior reduction screw for cervical dislocation according to claim 2, wherein: the inner concave through hole component comprises a first annular inner groove (11), a first through limiting opening (9) and a second through limiting opening (10), wherein the first through limiting opening (9) is arranged at the position, close to the two sides of the edge, of the second cervical vertebra fixing plate (4) and the first cervical vertebra fixing plate (3), the second through limiting opening (10) is arranged at the position, in the middle, of the second cervical vertebra fixing plate (4) and the first cervical vertebra fixing plate (3), the two sets of first through limiting openings (9) and the set of second through limiting openings (10) form a triangular distribution structure, and the first through limiting opening (9) and the second through limiting opening (10) are downwards inclined to form the first annular inner groove (11) and the second annular inner groove (12) respectively.

4. The bone plate structure of claim 3, wherein the bone plate structure comprises: the fixing assembly comprises a rod cap (15), a lifting head end vertebral body tension screw (6) and a reinforcing fixing screw (7), the rod cap (15) is integrally formed at the top of the lifting head end vertebral body tension screw (6), the rod cap (15) is integrally formed at the top of the reinforcing fixing screw (7), the lifting head end vertebral body tension screw (6) and the reinforcing fixing screw (7) are respectively penetrated through a first penetrating limiting opening (9) and a second penetrating limiting opening (10), and the bottom of the rod cap (15) is attached to the inner wall of the first annular inner groove (11) and the inner wall of the second annular inner groove (12).

5. The special anterior reduction screw bone plate structure for cervical dislocation according to claim 4, characterized in that: the strip groove assembly comprises side strip openings (16) and L-shaped high-low strip grooves, the triangular distribution structure formed by the first annular inner groove (11) and the second annular inner groove (12) is provided with the side strip openings (16) to form a triangular groove structure, and the inside of the side strip openings (16) is transversely provided with the L-shaped high-low strip groove structure matched with the rotation adjusting rod assembly along the side strip openings (16).

6. The special anterior reduction screw bone plate structure for cervical dislocation according to claim 5, characterized in that: the adjusting plate assembly comprises an adjusting rotary table (23), an articulated rod (24), a limiting slide rail (26), an adjusting clamping plate (17) and an adjusting screw rod (14), the middle of the top of the triangular outer convex frame (13) is provided with the adjusting screw rod (14) in a penetrating mode, the adjusting screw rod (14) is connected with the triangular outer convex frame (13) through a bearing, the adjusting rotary table (23) is installed at the bottom of the adjusting screw rod (14), the outer side edge of the triangular outer convex frame (13) is hinged to the articulated rod (24), the inner side of the triangular outer convex frame (13) is provided with the limiting slide rail (26), the inner side of the limiting slide rail (26) is provided with the adjusting clamping plate (17) which slides in the inner side of the limiting slide rail (26), one end of the adjusting clamping plate (17) is hinged to one end of the articulated rod (24), and the other end of the adjusting clamping plate (17) is connected with the clamping assembly.

7. The bone plate structure of claim 6, wherein the bone plate structure comprises: the screens subassembly includes end slot (27), a sliding barrel (30), spacing spring (25), spacing kelly (29) and runs through mouth (28), the inside of second cervical vertebra fixed plate (4) close to side strip mouth (16) department seted up with adjust cardboard (17) end slot (27) of mutually supporting, the inboard middle part department of end slot (27) installs a sliding barrel (30), spacing spring (25) are installed to the interior tip department of sliding barrel (30), spacing kelly (29) are installed to the tip department of spacing spring (25), run through mouth (28) have been seted up to the tip of adjusting cardboard (17), just spacing kelly (29) with run through mouth (28) and mutually support.

8. The bone plate structure of claim 7, wherein the bone plate structure comprises: the rotary adjusting rod assembly comprises a first outer collar (20), a first rotary limiting strip (18), a second rotary limiting strip (19) and a second outer collar (21), the top of the outer sides of the reinforcing fixing screw (7) and the lifting head end vertebral body tension screw (6) are provided with the first outer collar (20) and the second outer collar (21), the outer side of the first set of the first outer collar (20) is provided with the second rotary limiting strip (19), the outer side of the second outer collar (21) is provided with the first rotary limiting strip (18), the first rotary limiting strip (18) is located at the low end of the L-shaped high-low strip groove, and the second rotary limiting strip (19) is located at the high end of the L-shaped high-low strip groove.

9. The bone plate structure of claim 8, wherein the bone plate structure comprises: inner groovy (8) have been seted up to the bottom of second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3), connecting piece (1) is the hollow structure of indent in the arc, the middle part department of second cervical vertebra fixed plate (4) and first cervical vertebra fixed plate (3) is the indent structure.

10. The bone plate structure of the special anterior reduction screw for cervical dislocation according to claim 9, wherein: the bone plate structure of the anterior reduction screw further comprises the following using methods:

the method comprises the following steps: adjusting the distance between the second cervical vertebra fixing plate (4) and the first cervical vertebra fixing plate (3) according to the distance between the middle parts of the two groups of cervical vertebrae measured and the standard of taking the second through limiting port (10) as a central reference point;

step two: the first cervical vertebra fixing plate (3) and the second cervical vertebra fixing plate (4) are pulled to adjust the positions of the side limiting rods (2) on the second cervical vertebra fixing plate (4) and the first cervical vertebra fixing plate (3) so as to adjust the two groups of second penetrating limiting openings (10) to be respectively aligned to the middle parts of the two groups of cervical vertebrae;

step three: the side limiting rod (2) is fixed by adjusting the fixing screw (5), and then the first rotary limiting strip (18) and the second rotary limiting strip (19) are unfolded and laid on the inner side of the side strip opening (16);

step four: the triangular outer convex frame (13) is rotated to adjust the movement of the adjusting turntable (23), so as to drive the hinged rod (24) to adjust the adjusting clamping plate (17) to extend out and insert into the inner side of the end slot (27);

step five: the limiting clamping rod (29) is inserted into the through hole (28) through the matching of a limiting spring (25) of the limiting clamping rod (29) to position the adjusting clamping plate (17);

step six: the second rotary limiting strip (19) and the first rotary limiting strip (18) are pressed and held by the adjusting clamping plate (17) to press and limit the reinforcing fixing screw (7) and the lifting head end centrum lag screw (6).

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