Insertion piece type spine self-stabilization fusion cage

Abstract

The utility model discloses an insert type spine self-stabilization type fusion cage, which belongs to the technical field of fusion and comprises a fusion cage body, a bone grafting cavity is arranged on the fusion cage body, a mounting inlet is arranged on one side of the fusion cage body, and two groups of mounting outlets are arranged on one side of the fusion cage body opposite to the mounting inlet. A fixing clamp is mounted on the fusion cage body and penetrates through the mounting inlet and the mounting outlet; a mounting inlet is formed in the fusion cage body, a connecting groove and a threaded groove are formed in the two sides of the fusion cage body respectively, the connecting groove and the threaded groove are formed in the two sides of the mounting inlet respectively, and the fusion cage body is mounted through a holding device.

Description

Technical Field

[0001] This utility model relates to the field of fusion technology, and in particular to a insert-type spinal self-stabilizing fusion device. Background Technology

[0002] Spinal fusion surgery is an effective treatment for spinal diseases such as spinal tuberculosis, infection, deformity, degenerative changes, and intervertebral disc injury. It involves implanting an intervertebral fusion device into the intervertebral space, along with a large amount of autologous or allogeneic bone, to achieve intervertebral fusion and stabilize the spine.

[0003] Traditional spinal fusion cages rely on screws or auxiliary fixation devices for stability, which leads to problems such as large surgical trauma, complex operation, and postoperative loosening. Current fusion cage fixation structures often depend on external locking mechanisms, which may cause stress concentration or bone tissue damage. Therefore, there is an urgent need for a fusion cage design that can simplify operation, reduce damage, and improve stability. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a plug-in type spinal self-stabilizing fusion device that can achieve rapid intraoperative self-stabilization, reduce damage and improve stability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a plug-in type self-stabilizing spinal fusion device, including a fusion device body, a bone graft cavity on the fusion device body, an installation inlet on one side of the fusion device body, two sets of installation outlets on the side of the fusion device body opposite to the installation inlet, and a fixing clip installed on the fusion device body, the fixing clip passing through the installation inlet and the installation outlet.

[0007] The fusion unit body is provided with a connecting groove and a threaded groove on both sides, and the connecting groove and the threaded groove are respectively located on both sides of the installation inlet. The fusion unit body is installed by a holder.

[0008] The preferred technical solution of this utility model is that the fixing clip is arc-shaped as a whole, and an arc-shaped channel is provided between the installation inlet and the two sets of installation outlets, and the fixing clip is disposed through the arc-shaped channel.

[0009] A preferred embodiment of this invention is that the fixing clip has a V-shaped groove at the end away from the installation inlet.

[0010] The preferred technical solution of this utility model is that the fixing clip has symmetrical side wings on both sides of the end away from the installation inlet.

[0011] The preferred technical solution of this utility model is that serrated portions are symmetrically arranged on both sides of the top of the fusion device body.

[0012] The preferred technical solution of this utility model is that the holder is provided with a connector and a connecting screw respectively corresponding to the connecting groove and the threaded groove. The connecting groove and the connector are both L-shaped, and the connecting screw is controlled to rotate by the adjusting rod of the holder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses a retrieval device to assist in the installation of the fusion device body. The retrieval device body is pushed into the patient's intervertebral space using the retrieval device, and is initially fixed by the serrated part. The two sets of fixing clips are aligned with the installation entrance in sequence and slowly tapped in along the arc-shaped channel until they pass through the installation exit. The V-shaped groove and lateral wings enhance the anchoring effect of the fusion device body, improve the stability of the fusion device body installation, achieve rapid self-stabilization during the operation, effectively reduce damage to surrounding tissues, and optimize the bone fusion effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fusion device structure provided in a specific embodiment of this utility model;

[0016] Figure 2 This is a cross-sectional view of the fusion device structure provided in a specific embodiment of this utility model;

[0017] Figure 3 This is a cross-sectional view of the fusion device structure provided in a specific embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the fusion device installation structure provided in a specific embodiment of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Fusion device body; 11. Bone graft cavity; 12. Installation inlet; 13. Installation outlet; 2. Fixation clip; 21. V-shaped groove; 22. Side wing; 3. Connecting groove; 4. Threaded groove; 5. Serrated part; 6. Holder; 61. Connecting screw; 62. Connector. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] A self-stabilizing spinal fusion device with insert-type components includes a fusion device body 1, a bone graft cavity 11 formed on the fusion device body 1, an installation inlet 12 formed on one side of the fusion device body 1, two sets of installation outlets 13 formed on the side of the fusion device body 1 opposite to the installation inlet 12, and a fixing clip 2 installed on the fusion device body 1, the fixing clip 2 passing through the installation inlet 12 and the installation outlets 13;

[0023] The fusion device body 1 is provided with a connecting groove 3 and a threaded groove 4 on both sides. The connecting groove 3 and the threaded groove 4 are respectively located on both sides of the installation inlet 12. The fusion device body 1 is installed by a holder 6. The holder 6 is provided with a connector 62 and a connecting screw 61 corresponding to the connecting groove 3 and the threaded groove 4, respectively. The connecting groove 3 and the connector 62 are both L-shaped. The connecting screw 61 is controlled to rotate by the adjusting rod of the holder 6.

[0024] Autologous or artificial bone material is filled into the bone graft cavity 11. The L-shaped connector 62 of the holder 6 is aligned with the connecting groove 3 on one side of the fusion device body 1, and pushed in horizontally and locked. The adjusting rod is rotated to make the connecting screw 61 rotate and screwed into the threaded groove 4 until the holder 6 is locked with the fusion device body 1. The fusion device body 1 is implanted into the conical gap using the holder 6. The adjusting rod is rotated in the opposite direction to make the connecting screw 61 exit the threaded groove 4 and the L-shaped connector 62 is removed. The installation of the fusion device body 1 is then completed. One end of the fixation clip 2 is aligned with the installation inlet 12 and installed, and slowly tapped in until one end of the fixation clip 2 passes through the installation outlet 13. The other set of fixation clips 2 is operated in the same way to form multi-point fixation. The operation process is simple, can achieve rapid self-stabilization during the operation, effectively reduce damage to surrounding tissues, and optimize the bone fusion effect, improving the stability of the fusion device during use.

[0025] As a possible implementation of this solution, preferably, the fixing clip 2 is arc-shaped, and an arc-shaped channel is provided between the installation inlet 12 and the two sets of installation outlets 13. The fixing clip 2 passes through the arc-shaped channel. The arc-shaped design of the fixing clip 2 is adapted to the arc-shaped channel. The arc-shaped path can conform to the vertebral anatomical structure, reduce the risk of damage to surrounding nerves and blood vessels during the insertion process, and at the same time, the arc surface disperses stress to avoid bending and breakage of the fixing clip 2, thereby increasing the stability of the fusion device body 1 during installation.

[0026] As a possible implementation of this solution, preferably, the fixing clip 2 is provided with a V-shaped groove 21 at the end away from the installation inlet 12, and the fixing clip 2 is provided with side wings 22 symmetrically on both sides of the end away from the installation inlet 12.

[0027] By setting a V-shaped groove 21, the clamp 2 increases friction by engaging with the bone tissue through the groove when inserted, preventing the clamp 2 from retracting. At the same time, the V-shaped structure can guide the end of the clamp 2 to expand directionally in the bone tissue, enhancing the anchoring effect. The side wings 22 can increase the contact area with the vertebral bone, further preventing the clamp 2 from shifting or falling out, and improving the stability of the fusion device body 1 during installation.

[0028] As a possible implementation of this solution, preferably, the top two sides of the fusion device body 1 are symmetrically provided with serrated portions 5. By providing the serrated portions 5, the pressure between the fusion device body 1 and the vertebral body is increased, the stability between the fusion device body 1 and the vertebral body is improved, and intraoperative displacement is prevented.

[0029] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A insert-type self-stabilizing spinal fusion device, characterized in that: The device includes a fusion device body (1), which has a bone graft cavity (11) and an installation inlet (12) on one side. The fusion device body (1) has two sets of installation outlets (13) on the side opposite to the installation inlet (12). A fixing clip (2) is installed on the fusion device body (1) and passes through the installation inlet (12) and the installation outlet (13). The fusion body (1) is provided with a connecting groove (3) and a threaded groove (4) on both sides. The connecting groove (3) and the threaded groove (4) are respectively located on both sides of the installation inlet (12). The fusion body (1) is installed by a holder (6).

2. The insert-type self-stabilizing spinal fusion device according to claim 1, characterized in that: The fixing clip (2) is arc-shaped, and an arc-shaped channel is provided between the installation inlet (12) and the two sets of installation outlets (13). The fixing clip (2) is set through the arc-shaped channel.

3. The insert-type self-stabilizing spinal fusion device according to claim 1, characterized in that: The fixing clip (2) has a V-shaped groove (21) at the end away from the installation inlet (12).

4. The insert-type self-stabilizing spinal fusion device according to claim 1, characterized in that: The fixing clip (2) has symmetrical side wings (22) on both sides of the end away from the installation inlet (12).

5. The insert-type self-stabilizing spinal fusion device according to claim 1, characterized in that: The fusion body (1) has serrated sections (5) symmetrically arranged on both sides of the top.

6. The insert-type self-stabilizing spinal fusion device according to claim 1, characterized in that: The holder (6) is provided with a connector (62) and a connecting screw (61) respectively corresponding to the connecting groove (3) and the threaded groove (4). The connecting groove (3) and the connector (62) are both L-shaped. The connecting screw (61) is controlled to rotate by the adjusting rod of the holder (6).

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