Lamina fixation plate with adjustment structure

Abstract

The utility model relates to the technical field of lamina fixing plate, disclose a lamina fixing plate with adjusting structure, including center connecting seat groove, the both sides of center connecting seat groove are set up with sliding slot, the inside insertion of sliding slot has adjusting lever seat, the outside of adjusting lever seat is connected with the bending connecting rod, the outside of bending connecting rod is connected with screw groove connecting seat, the inside of center connecting seat groove is set up with fixed groove, the utility model discloses the plate body adjusting structure is set up, and when using, according to the angle and length of need correction, will bending connecting rod carry adjusting lever seat in the inside sliding of center connecting seat groove both sides sliding slot, after adjusting the position of connection, will fixed column insert center connecting seat groove and insert the fixed groove on the inside of adjusting lever seat in center connecting seat groove, will center connecting seat groove and adjusting lever seat fixed connection together, adjust the position of corresponding, thereby realized the plate body adjusting function.

Description

Technical Field

[0001] This utility model relates to the field of vertebral lamina fixation plate technology, specifically a vertebral lamina fixation plate with an adjustable structure. Background Technology

[0002] A laminectomy plate is a systematic surgical instrument commonly used to treat spinal fractures, dislocations, and spinal cord injuries. Doctors will select the appropriate combination of components for surgery based on the patient's specific condition. The laminectomy plate system is flexible in operation and can be customized according to the patient's specific situation, which can effectively improve the success rate of surgery, while providing good support and stability to help patients recover as quickly as possible.

[0003] Laminar fixation plates are typically made of titanium alloy and are fixed to the patient's spine to stabilize the intervertebral joints and provide support. The system consists of multiple components such as the lamina, fixation pins, screws, hinges, and rods. Moreover, most laminar fixation plates are molded in one piece. However, human bone sizes vary, and custom-made plates cannot guarantee a proper fit. If an unsuitable fit is found during surgery, it cannot be adjusted. Therefore, we propose a laminar fixation plate with an adjustable structure to improve upon the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a vertebral laminar fixation plate with an adjustable structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertebral plate fixing plate with an adjustable structure, including a central connecting seat groove, sliding grooves on both sides of the central connecting seat groove, an adjusting rod seat inserted inside the sliding groove, a bent connecting rod connected to the outside of the adjusting rod seat, a threaded connecting seat connected to the outside of the bent connecting rod, a fixing groove inside the central connecting seat groove, and a fixing post inserted inside the fixing groove.

[0006] As a further technical solution of this utility model, the bent connecting rod and the adjusting rod seat are integrated into one structure. The bent connecting rod is inserted into the sliding grooves on both sides of the central connecting seat groove through the adjusting rod seat. The threaded connecting seat is connected to the central connecting seat groove through the bent connecting rod and the adjusting rod seat.

[0007] As a further technical solution of this utility model, both the adjusting rod seat and the central connecting seat groove are provided with fixing grooves. The fixing post is inserted into the fixing grooves provided inside the central connecting seat groove and the adjusting rod seat, and the adjusting rod seat is fixed inside the central connecting seat groove by the fixing post.

[0008] As a further technical solution of this utility model, a titanium alloy body is provided inside the central connecting seat groove, and a spray treatment layer is coated on the outside of the titanium alloy body, and a calcium phosphate coating is coated on the outside of the spray treatment layer.

[0009] As a further technical solution of this utility model, the screw groove connecting seat, the bent connecting rod and the central connecting seat groove are all provided with titanium alloy bodies inside, and the spray treatment layer and the calcium phosphate coating are sequentially applied to the outside of the titanium alloy body.

[0010] As a further technical solution of this utility model, the screw groove connector is provided with an installation hole inside, the bottom of the screw groove connector is provided with an anti-slip tooth block, and the inner side of the anti-slip tooth block is provided with a hook groove.

[0011] As a further technical solution of this utility model, the screw groove connector is provided in two sets, and the anti-slip teeth are equally spaced at the bottom of the screw groove connector.

[0012] As a further technical solution of this utility model, the inner side of the anti-slip tooth block is provided with a hook groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this kind of vertebral plate fixation plate with an adjustable structure not only realizes the plate body adjustment function and the anti-corrosion and growth promotion function, but also realizes the adhesion and gripping function;

[0014] (1) By setting up a plate adjustment structure, the present invention is beneficial as follows: When in use, the screw groove connecting seats connected by the bent connecting rods on both sides of the central connecting seat groove are brought into contact with the two vertebrae that need to be connected. Then, according to the required angle and length, the bent connecting rods carrying the adjusting rod seats slide in the sliding grooves on both sides of the central connecting seat groove. After adjusting the connection position, the fixing column is inserted into the central connecting seat groove and the fixing groove on the adjusting rod seat inserted into the central connecting seat groove. The central connecting seat groove and the adjusting rod seat are fixedly connected together. After adjusting the corresponding position, the screw groove connecting seats connected by the bent connecting rods on both sides of the central connecting seat groove are installed on the vertebrae, thereby realizing the plate adjustment function.

[0015] (2) By setting up an anti-corrosion and growth-promoting structure, the present invention is beneficial as follows: the components such as the screw groove connecting seat and the center connecting seat groove of the bent connecting rod are all made of titanium alloy body. The titanium alloy body has the advantages of high strength, not easy to deform, and corrosion resistance. A spray treatment layer is applied to the outside of the titanium alloy body to facilitate spraying the surface of the titanium alloy body. The calcium phosphate coating outside the spray treatment layer promotes bone ingrowth, thereby realizing the anti-corrosion and growth-promoting function.

[0016] (3) By setting a gripping structure, the present invention is beneficial in that: when in use, the screw groove connector is attached to the vertebra, the anti-slip tooth block at the bottom of the screw groove connector is in contact with the bone, the hook groove inside the anti-slip tooth block increases the fit of the screw groove connector, and the gripping force with the bone is increased by the anti-slip tooth block at the bottom of the screw groove connector, making it less likely to fall off, thereby realizing the gripping function. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is an enlarged cross-sectional view of the central connecting groove of this utility model;

[0020] Figure 4 This is a partially enlarged structural diagram of the connector of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged cross-sectional view of point A in the middle.

[0022] In the diagram: 1. Screw groove connector; 2. Bending connector rod; 3. Center connector groove; 4. Fixing groove; 5. Mounting hole; 6. Sliding groove; 7. Adjusting rod seat; 8. Fixing column; 9. Titanium alloy body; 10. Spray coating layer; 11. Calcium phosphate coating; 12. Anti-slip tooth block; 13. Hook groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 An embodiment of this utility model is provided: a vertebral plate fixing plate with an adjustable structure, including a central connecting seat groove 3, sliding grooves 6 on both sides of the central connecting seat groove 3, an adjusting rod seat 7 inserted inside the sliding groove 6, a bent connecting rod 2 connected to the outside of the adjusting rod seat 7, a screw groove connecting seat 1 connected to the outside of the bent connecting rod 2, a fixing groove 4 opened inside the central connecting seat groove 3, and a fixing post 8 inserted inside the fixing groove 4;

[0025] The bent connecting rod 2 and the adjusting rod seat 7 are integrated. The bent connecting rod 2 is inserted into the sliding grooves 6 on both sides of the central connecting seat groove 3 through the adjusting rod seat 7. The threaded connecting seat 1 is connected to the central connecting seat groove 3 through the bent connecting rod 2 and the adjusting rod seat 7. The adjusting rod seat 7 and the central connecting seat groove 3 are both provided with fixing grooves 4. The fixing post 8 is inserted into the fixing grooves 4 provided inside the central connecting seat groove 3 and the adjusting rod seat 7. The adjusting rod seat 7 is fixed inside the central connecting seat groove 3 through the fixing post 8.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a plate adjustment structure, during use, the threaded groove connecting seat 1 connected to both sides of the central connecting seat groove 3 by the bent connecting rod 2 is brought into contact with the two vertebrae that need to be connected. Then, according to the required angle and length, the bent connecting rod 2 carrying the adjusting rod seat 7 slides inside the sliding groove 6 on both sides of the central connecting seat groove 3. After adjusting the connection position, the fixing post 8 is inserted into the central connecting seat groove 3 and the fixing groove 4 on the adjusting rod seat 7 inserted inside the central connecting seat groove 3, fixing the central connecting seat groove 3 and the adjusting rod seat 7 together. After adjusting the corresponding position, the threaded groove connecting seat 1 connected to both sides of the central connecting seat groove 3 by the bent connecting rod 2 is installed on the vertebra, thereby realizing the plate adjustment function.

[0027] The interior of the central connecting seat groove 3 is provided with a titanium alloy body 9, the exterior of the titanium alloy body 9 is coated with a spray treatment layer 10, and the exterior of the spray treatment layer 10 is coated with a calcium phosphate coating 11.

[0028] The screw groove connector 1, the bent connecting rod 2 and the center connecting seat groove 3 are all equipped with titanium alloy bodies 9, and the spray treatment layer 10 and the calcium phosphate coating 11 are sequentially applied to the outside of the titanium alloy bodies 9.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, by setting up an anti-corrosion and growth-promoting structure, the components such as the central threaded groove connector 1, the bent connecting rod 2, and the central connecting groove 3 are all made of titanium alloy body 9. The titanium alloy body 9 has the advantages of high strength, resistance to deformation, and corrosion resistance. A spray coating layer 10 is applied to the outside of the titanium alloy body 9 to facilitate spraying the surface of the titanium alloy body 9. The calcium phosphate coating 11 on the outside of the spray coating layer 10 promotes bone ingrowth, thereby achieving the anti-corrosion and growth-promoting function.

[0030] The screw groove connector 1 has an installation hole 5 inside, and the bottom of the screw groove connector 1 has an anti-slip tooth block 12. The inner side of the anti-slip tooth block 12 has a hook groove 13.

[0031] The threaded groove connector 1 is provided with two sets, and the anti-slip tooth blocks 12 are evenly spaced at the bottom of the threaded groove connector 1. The inner side of the anti-slip tooth blocks 12 is provided with a hook groove 13.

[0032] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, by setting a gripping structure, the screw groove connector 1 is fitted to the vertebra during use, and the anti-slip tooth block 12 at the bottom of the screw groove connector 1 contacts the bone. The hook groove 13 inside the anti-slip tooth block 12 increases the fit of the screw groove connector 1. The anti-slip tooth block 12 at the bottom of the screw groove connector 1 increases the gripping force with the bone, making it less likely to fall off, thus realizing the gripping function.

[0033] Working principle: In use, the threaded connecting seat 1, connected to both sides of the central connecting seat groove 3 by the bent connecting rod 2, is brought into contact with the two vertebrae to be connected. Then, according to the required angle and length correction, the bent connecting rod 2 carrying the adjusting rod seat 7 slides within the sliding grooves 6 on both sides of the central connecting seat groove 3. After adjusting the connection position, the fixing post 8 is inserted into the central connecting seat groove 3 and the fixing groove 4 on the adjusting rod seat 7 inserted into the central connecting seat groove 3, thus fixing the central connecting seat groove 3 and the adjusting rod seat 7 together. After adjusting the corresponding position, the threaded connecting seat 1, connected to both sides of the central connecting seat groove 3 by the bent connecting rod 2, is installed on the vertebrae. The threaded connecting seat 1 is then fitted against the vertebrae, and the threaded... The anti-slip teeth 12 at the bottom of the connector 1 contacts the bone. The groove 13 inside the anti-slip teeth 12 increases the fit of the screw groove connector 1. The anti-slip teeth 12 at the bottom of the screw groove connector 1 increases the grip with the bone, making it less likely to fall off. The screw is connected to the vertebra by inserting the screw into the mounting hole 5 and the center connector groove 3 inside the screw groove connector 1. During use, the screw groove connector 1, the bent connecting rod 2, the center connector groove 3 and other components are all made of titanium alloy body 9. Titanium alloy body 9 has the advantages of high strength, non-deformation, and corrosion resistance. A spray coating layer 10 is applied to the outside of the titanium alloy body 9 to facilitate spraying the surface of the titanium alloy body 9. The calcium phosphate coating 11 on the outside of the spray coating layer 10 promotes bone ingrowth.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vertebral laminar fixation plate with an adjustable structure, comprising a central connecting groove (3), characterized in that: The central connecting seat groove (3) has sliding grooves (6) on both sides. An adjusting rod seat (7) is inserted inside the sliding groove (6). A bent connecting rod (2) is connected to the outside of the adjusting rod seat (7). A threaded connecting seat (1) is connected to the outside of the bent connecting rod (2). A fixing groove (4) is opened inside the central connecting seat groove (3). A fixing column (8) is inserted inside the fixing groove (4).

2. The vertebral laminar fixation plate with an adjustable structure according to claim 1, characterized in that: The bent connecting rod (2) and the adjusting rod seat (7) are integrated. The bent connecting rod (2) is inserted into the sliding groove (6) on both sides of the central connecting seat groove (3) through the adjusting rod seat (7). The screw groove connecting seat (1) is connected to the central connecting seat groove (3) through the bent connecting rod (2) and the adjusting rod seat (7).

3. The vertebral laminar fixation plate with an adjustable structure according to claim 1, characterized in that: The adjusting rod seat (7) and the center connecting seat groove (3) are both provided with fixing grooves (4). The fixing column (8) is inserted into the fixing grooves (4) provided in the center connecting seat groove (3) and the adjusting rod seat (7). The adjusting rod seat (7) is fixed inside the center connecting seat groove (3) by the fixing column (8).

4. The vertebral laminar fixation plate with an adjustable structure according to claim 1, characterized in that: The interior of the central connecting seat groove (3) is provided with a titanium alloy body (9), and the exterior of the titanium alloy body (9) is coated with a spray treatment layer (10), and the exterior of the spray treatment layer (10) is coated with a calcium phosphate coating (11).

5. A vertebral laminar fixation plate with an adjustable structure according to claim 4, characterized in that: The screw groove connector (1), the bent connecting rod (2) and the center connecting seat groove (3) are all provided with titanium alloy bodies (9), and the spray treatment layer (10) and the calcium phosphate coating (11) are sequentially applied to the outside of the titanium alloy body (9).

6. A vertebral laminar fixation plate with an adjustable structure according to claim 1, characterized in that: The screw groove connector (1) has an installation hole (5) inside, and the bottom of the screw groove connector (1) has an anti-slip tooth block (12), and the inner side of the anti-slip tooth block (12) has a hook groove (13).

7. A vertebral laminar fixation plate with an adjustable structure according to claim 6, characterized in that: The threaded groove connector (1) is provided with two sets, and the anti-slip tooth blocks (12) are equally spaced at the bottom of the threaded groove connector (1).

8. A vertebral laminar fixation plate with an adjustable structure according to claim 6, characterized in that: The anti-slip tooth block (12) has a groove (13) on its inner side.

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