Spine fusion cage

Abstract

The utility model relates to the technical field of medical instruments, and discloses a spinal fusion cage which comprises a supporting block, an adjusting rod is arranged at the top of the supporting block, a lifting plate used for fixing is arranged at the top of the adjusting rod, a fastening plate used for installation is arranged on one side of the supporting block, and an installer used for pushing is arranged on one side of the supporting block. According to the spinal fusion cage, through cooperative arrangement of the supporting block, the adjusting rod and the lifting plate, the height of the device can be adjusted according to the gap size of the spine of a patient, so that the supporting effect on the spine of the patient is improved, meanwhile, the use scene of the device is improved, and through arrangement of the supporting block, the device can be supported; the spines of the patient can be connected together more quickly, shaking of the device in the body of the patient is reduced, the interval between the supporting block and the lifting plate can be adjusted according to needs through the adjusting rod, so that the device can meet more use scenes, and the spines of the patient can be connected together more quickly through the lifting plate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a spinal fusion device. Background Technology

[0002] In the field of spinal surgery, spinal fusion is a commonly used treatment method that aims to promote bony fusion by fixing adjacent spinal segments to restore spinal stability and relieve pain. However, existing spinal fusion devices often have problems such as simple design, non-adjustable height, and complicated installation, making it difficult to meet the personalized needs of different patients. Moreover, during the installation process, unstable fixation can easily lead to slippage, affecting the surgical outcome and patient recovery. Therefore, there is a need for a spinal fusion device with a reasonable structure, adjustable height, and convenient installation.

[0003] Chinese Patent Publication No. CN210301310U discloses a dynamic locking spinal fusion device, including a fusion device body with screw holes for mounting screws. Each screw includes a head and a shank. When the screw is installed in the screw hole, the outer diameter of the shank is smaller than the diameter of the screw hole. An elastic locking element is also provided at the entrance of the screw hole to lock the screw. By setting the outer diameter of the shank to be smaller than the diameter of the screw hole, the screw can move within a certain angle range in the screw hole, realizing dynamic installation of the screw. Furthermore, the elastic locking element at the entrance of the screw hole can press the screw tightly into the screw hole to prevent the screw from coming out. This solves the technical problem that existing fusion devices are all fixed and locked, which is not conducive to vertebral rehabilitation.

[0004] However, this utility model has the following problems in actual use:

[0005] When in use, this utility model does not allow patients to adjust the height of the device according to their needs, which may result in the device being unable to effectively support the spine of different patients, thereby affecting the fusion of the patient's spine and reducing the scope of use of the device. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To overcome the aforementioned shortcomings of the prior art, this utility model provides a spinal fusion device, which solves the problems in the prior art:

[0008] The present invention does not allow patients to adjust the height of the device according to their needs, which may result in the device being unable to effectively support the spine of different patients, thereby affecting the fusion of the patient's spine and reducing the scope of use of the device.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a spinal fusion device, comprising a support block, an adjusting rod at the top of the support block, a lifting plate for fixing at the top of the adjusting rod, a fastening plate for installation on one side of the support block, and an installer for pushing on one side of the support block.

[0011] Optionally, the top of the support block is provided with a stepped groove, the top of the stepped groove is threaded to the bottom of the adjusting rod, and the top of the support block is provided with a positioning groove.

[0012] Optionally, a slot is provided on one side of the support block, and a threaded hole is provided on one side of the support block. The threaded hole is fixedly installed on one side of the fastening plate.

[0013] Optionally, a telescopic rod is snapped onto the top of the adjusting rod, and a fastening knob is threaded onto one side of the adjusting rod.

[0014] Optionally, a threaded post is fixedly connected to the top of the telescopic rod, and the outer surface of the threaded post is threadedly connected to the bottom of the lifting plate.

[0015] Optionally, a resistance-increasing block is fixedly connected to the top of the lifting plate, and a limit frame is fixedly connected to the inner wall of the lifting plate.

[0016] Optionally, a connecting plate is fixedly connected to the top of the fastening plate, and a screw is threaded onto one side of the connecting plate.

[0017] Optionally, a locking block is fixedly connected to one side of the installer, the outer surface of the locking block engaging with the inner wall of the slot, and an assembly slot is provided on one side of the installer.

[0018] (III) Beneficial Effects

[0019] This utility model provides a spinal fusion device, which has the following beneficial effects:

[0020] This spinal fusion device, through the coordinated arrangement of support blocks, adjusting rods, and a lifting plate, allows the device to adjust its height according to the gap size in the patient's spine, thereby improving the support effect on the patient's spine and expanding the device's usability. The support blocks provide support and reduce swaying within the patient's body. The adjusting rods allow for adjustment of the interval between the support blocks and the lifting plate as needed, enabling the device to meet more usage scenarios. The lifting plate allows for faster connection of the patient's spine and increases the resistance between the device and the spine, reducing slippage during installation and increasing the device's practicality. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the support block structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the adjusting rod structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the lifting plate structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the fastening plate structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the installer structure of this utility model.

[0027] In the diagram: 1. Support block; 2. Adjusting rod; 3. Lifting plate; 4. Fastening plate; 5. Installer; 6. Step groove; 7. Positioning groove; 8. Slot; 9. Threaded hole; 10. Telescopic rod; 11. Fastening knob; 12. Threaded post; 13. Resistance block; 14. Limiting frame; 15. Connecting plate; 16. Screw; 17. Locking block; 18. Assembly slot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figures 1 to 6 This utility model provides a technical solution: a spinal fusion device, which is mainly used in scenarios that promote the fusion of the patient's spine.

[0030] Example 1:

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In order to allow the device to be adjusted according to the patient's spinal interval during use, a support block 1, an adjustment rod 2, and a lifting plate 3 are provided.

[0032] The top of the support block 1 is equipped with an adjusting rod 2, and the top of the adjusting rod 2 is equipped with a lifting plate 3 for fixing. A stepped groove 6 is formed on the top of the support block 1, and the top of the stepped groove 6 is threadedly connected to the bottom of the adjusting rod 2. A positioning groove 7 is formed on the top of the support block 1, a slot 8 is formed on one side of the support block 1, and a threaded hole 9 is formed on one side of the support block 1. One side of the threaded hole 9 is fixedly installed to one side of the fastening plate 4. A telescopic rod 10 is snapped onto the top of the adjusting rod 2, and a fastening knob 11 is threadedly connected to one side of the adjusting rod 2. A threaded post 12 is fixedly connected to the top of the telescopic rod 10, and the outer surface of the threaded post 12 is threadedly connected to the bottom of the lifting plate 3. A resistance-increasing block 13 is fixedly connected to the top of the lifting plate 3, and a limit frame 14 is fixedly connected to the inner wall of the lifting plate 3. The stepped groove 6 prevents the adjusting rod 2 from tilting during assembly, increasing the load-bearing capacity of the device. The positioning groove 7 facilitates... The limiting frame 14 is assembled with the support block 1. The slot 8 facilitates the connection of the support block 1 with other parts. The threaded hole 9 makes the connection between the fastening plate 4 and the support block 1 more secure, preventing the support block 1 from sliding. The telescopic rod 10 allows for easy adjustment of the device's height, thus supporting the spine of different patients. The fastening knob 11 increases the resistance to the sliding of the telescopic rod 10, ensuring the device remains stable after adjustment and allowing for fine-tuning. The threaded column 12 makes the assembly of the telescopic rod 10 and the lifting plate 3 easier. The resistance block 13 increases the friction between the lifting plate 3 and the spine, ensuring the stability of the lifting plate 3. The limiting frame 14 facilitates the filling of the patient's bone, thereby accelerating the fusion of the patient's spine and increasing the convenience of the device.

[0033] Example 2:

[0034] Please see Figure 1 and Figure 5 In order to fix the device to the patient's spine and keep it stable during use, a fastening plate 4 is provided;

[0035] A fastening plate 4 for installation is provided on one side of the support block 1. A connecting plate 15 is fixedly connected to the top of the fastening plate 4. A screw 16 is threadedly connected to one side of the connecting plate 15. The position of the screw 16 can be restricted by the setting of the connecting plate 15. The setting of the screw 16 can fix the device on the patient's spine, thereby reducing the shaking of the device in the patient's body and reducing the patient's discomfort.

[0036] Example 3:

[0037] Please see Figure 1 and Figure 6 To make the installation of the device more convenient during use, an installer 5 is provided;

[0038] One side of the support block 1 is provided with an installer 5 for pushing. A locking block 17 is fixedly connected to one side of the installer 5. The outer surface of the locking block 17 engages with the inner wall of the locking groove 8. An assembly groove 18 is provided on one side of the installer 5. The device can be pushed by the locking block 17, which makes it convenient for medical staff to install the device on the patient's spine. The assembly groove 18 makes it convenient for the installer 5 to be connected to external surgical instruments, thereby making it convenient to push the device into the space between the patient's spines and increasing the practicality of the device.

[0039] In this invention, the working steps of the device are as follows:

[0040] First, based on the size of the patient's spinal gap, the telescopic rod 10 is inserted into the top of the adjusting rod 2 and locked by the fastening knob 11. The height of the lifting plate 3 is adjusted to a suitable position, and the patient's bone is filled into the interior of the limiting frame 14 to promote fusion. Next, the locking block 17 of the installer 5 is aligned with the locking groove 8 of the support block 1 and pushed in to achieve quick installation and positioning of the installer 5. Then, the device is pushed into the patient's spine through the installer 5 and fixed by the fastening plate 4. Finally, the installer 5 is pulled out to complete the spinal fusion surgery.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spinal fusion device, comprising a support block (1), characterized in that: The support block (1) has an adjusting rod (2) at its top, a lifting plate (3) for fixing at its top, a fastening plate (4) for installation on one side of the support block (1), and an installer (5) for pushing on one side of the support block (1).

2. The spinal fusion device according to claim 1, characterized in that: The top of the support block (1) is provided with a stepped groove (6), the top of the stepped groove (6) is threadedly connected to the bottom of the adjusting rod (2), and the top of the support block (1) is provided with a positioning groove (7).

3. A spinal fusion device according to claim 2, characterized in that: The support block (1) has a slot (8) on one side and a threaded hole (9) on one side. The threaded hole (9) is fixedly installed on one side of the fastening plate (4).

4. The spinal fusion device according to claim 1, characterized in that: The top of the adjusting rod (2) is snapped with a telescopic rod (10), and a fastening knob (11) is threaded onto one side of the adjusting rod (2).

5. A spinal fusion device according to claim 4, characterized in that: The top of the telescopic rod (10) is fixedly connected to a threaded column (12), and the outer surface of the threaded column (12) is threadedly connected to the bottom of the lifting plate (3).

6. A spinal fusion device according to claim 1, characterized in that: The top of the lifting plate (3) is fixedly connected to a resistance increasing block (13), and the inner wall of the lifting plate (3) is fixedly connected to a limit frame (14).

7. A spinal fusion device according to claim 1, characterized in that: A connecting plate (15) is fixedly connected to the top of the fastening plate (4), and a screw (16) is threadedly connected to one side of the connecting plate (15).

8. A spinal fusion device according to claim 3, characterized in that: A locking block (17) is fixedly connected to one side of the installer (5), and the outer surface of the locking block (17) engages with the inner wall of the slot (8). An assembly slot (18) is provided on one side of the installer (5).

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