Adjustable cervical vertebra fusion cage for minimally invasive surgery
By designing an adjustable cervical fusion device, and utilizing a combination structure of hinged columns, inserts, and a base, minimally invasive implantation of the cervical fusion device is achieved. This solves the problems of large wounds and long recovery times caused by the large size of the device in existing technologies, thus achieving the effect of minimally invasive surgery.
Patent Information
- Application Number
- CN202423043087.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing cervical fusion devices are large, resulting in large surgical wounds and prolonged patient recovery time. Furthermore, current technology makes it difficult to achieve minimally invasive surgery.
An adjustable cervical fusion device is designed, comprising a first cylinder and a second cylinder. Through a combination structure of hinged column, insert, base and anti-slip teeth, the cervical fusion device can be adjusted and implanted minimally invasively, increasing the contact area with the cervical spine and providing stability and support.
By reducing surgical incisions, lowering the risk of complications, shortening recovery time, and improving treatment efficiency, minimally invasive surgery can be achieved.
Smart Images
Figure CN223831247U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to an adjustable cervical fusion device for minimally invasive procedures. Background Technology
[0002] Cervical degenerative diseases are common conditions caused by the gradual degeneration of the intervertebral discs and joints in the cervical spine due to factors such as age, posture, or trauma. Cervical fusion surgery is a common treatment option. The surgery involves removing damaged intervertebral discs or bone and using a cervical fusion cage to fix adjacent vertebrae, promoting bone healing and aiming to reduce surgical trauma, shorten recovery time, and maintain postoperative cervical spine stability. However, existing cervical fusion cages are relatively large, resulting in a larger incision area and prolonged recovery time for patients. Utility Model Content
[0003] This invention addresses the aforementioned problems by providing an adjustable cervical fusion device for minimally invasive procedures.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An adjustable cervical fusion device for minimally invasive surgery includes a first cylinder and a second cylinder. A hinge post is integrally formed on the upper surface of the first cylinder. A hinge hole corresponding to the hinge post is formed on the upper surface of the second cylinder. An insert is slidably disposed inside the second cylinder. An adjustment window for adjusting the position of the insert is provided on the outer circumference of the second cylinder. Multiple insertion holes corresponding to the insert are provided on the upper surface of the first cylinder. The multiple insertion holes are evenly distributed along the rotation arc between the first and second cylinders. Two first bases are fixedly disposed on the outer circumference of the first cylinder, and the two first bases are arranged in a 180° circumferential distribution. Two second bases are fixedly disposed on the outer circumference of the second cylinder, and the two second bases are arranged in a 180° circumferential distribution.
[0006] Furthermore, a limit block is integrally provided at the upper end of the insert to prevent the insert from falling completely into the socket.
[0007] Furthermore, an adjustment hole is provided on the limiting block to facilitate the adjustment of the insertion strip position.
[0008] Furthermore, two cavities are provided on both the No. 1 and No. 2 bases to facilitate better integration of the bone with the cervical fusion device.
[0009] Furthermore, anti-slip teeth are provided on the upper and lower surfaces of both the No. 1 and No. 2 bases.
[0010] Furthermore, the anti-slip teeth are inclined to the side away from the hinge post.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] Compared to other cervical fusion devices, this invention features a smaller overall size due to the adjacent placement of bases one and two in its initial state. This reduces the surgical incision, lowers the risk of complications, and shortens the patient's recovery time, achieving a minimally invasive effect. During the surgery, the bases one and two can be opened to the desired angle using the accompanying instruments and then fixed with inserts. This increases the contact area with the upper and lower surfaces of the cervical spine, providing better support and stability, improving the fusion of the cervical fusion device with the cervical spine, aiding postoperative healing, and significantly improving treatment efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention in its initial state;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model after it has been opened;
[0015] Figure 3 This is a top view of the first cylinder and the first base of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the insert of this utility model;
[0017] In the diagram, there are cylinder 1, cylinder 2, hinge post 3, hinge hole 4, insert 5, adjustment window 6, insertion hole 7, base 1 8, base 2 9, limit block 10, adjustment hole 11, cavity 12, and anti-slip teeth 13. Detailed Implementation
[0018] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.
[0019] like Figures 1 to 4As shown, an adjustable cervical fusion device for minimally invasive surgery includes a first cylinder 1 and a second cylinder 2. A hinge post 3 is integrally formed on the upper surface of the first cylinder 1. A hinge hole 4 corresponding to the hinge post 3 is formed on the upper surface of the second cylinder 2. An insert 5 is slidably disposed inside the second cylinder 2. An adjustment window 6 for adjusting the position of the insert 5 is provided on the outer circumferential surface of the second cylinder 2. A limit block 10 is integrally formed at the upper end of the insert 5 to prevent the insert 5 from falling completely into the insertion hole 7. An adjustment hole 11 is provided to facilitate the adjustment of the position of the insert 5. Multiple insertion holes 7 corresponding to the insert 5 are provided on the upper surface of the first cylinder 1, and these holes 7 are evenly distributed along the rotational arc between the first cylinder 1 and the second cylinder 2. Two first bases 8 are fixedly installed on the outer circumference of the first cylinder 1, arranged in a 180° circumferential distribution. Two second bases 9 are fixedly installed on the outer circumference of the second cylinder 2, also arranged in a 180° circumferential distribution. Two cavities 12 are provided on both the first base 8 and the second base 9 to facilitate better integration of the bone with the cervical fusion device. Anti-slip teeth 13 are provided on the upper and lower surfaces of both the first base 8 and the second base 9, and these anti-slip teeth 13 are inclined towards the side away from the hinge post 3.
[0020] Instructions for use: In the initial state, the adjacent No. 1 base 8 and No. 2 base 9 are in contact, and the entire cervical fusion device has a cuboid-like structure. During the operation, the cervical fusion device in the initial state is placed into the human body. Then, using the matching instrument and adjustment hole 11, the insert 5 is lifted. Then, using another instrument, No. 1 base 8 and No. 2 base 9 are separated and rotated to the required angle. At the same time, the insert 5 is released, allowing it to fall into the insertion hole 7, thus opening No. 1 base 8 and No. 2 base 9.
[0021] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An adjustable cervical fusion device for minimally invasive procedures, characterized in that: The cylinder includes a first cylinder (1) and a second cylinder (2). A hinge post (3) is integrally formed on the upper surface of the first cylinder (1). A hinge hole (4) corresponding to the hinge post (3) is formed on the upper surface of the second cylinder (2). An insert (5) is slidably arranged inside the second cylinder (2). An adjustment window (6) for adjusting the position of the insert (5) is provided on the outer circumference of the second cylinder (2). Multiple insert holes are provided on the upper surface of the first cylinder (1). The insertion holes (7) corresponding to the strip (5) are evenly distributed along the rotation arc between the first cylinder (1) and the second cylinder (2). Two first bases (8) are fixedly arranged on the outer circumferential surface of the first cylinder (1). The two first bases (8) are arranged in a 180° circumferential distribution. Two second bases (9) are fixedly arranged on the outer circumferential surface of the second cylinder (2). The two second bases (9) are arranged in a 180° circumferential distribution.
2. The adjustable cervical fusion device for minimally invasive surgery according to claim 1, characterized in that: A limiting block (10) is integrally provided at the upper end of the insert (5) to prevent the insert (5) from falling completely into the socket (7).
3. The adjustable cervical fusion device for minimally invasive procedures according to claim 2, characterized in that: An adjustment hole (11) is provided on the limiting block (10) to facilitate the adjustment of the position of the insert (5).
4. The adjustable cervical fusion device for minimally invasive surgery according to claim 1, characterized in that: Two cavities (12) are provided on both the No. 1 base (8) and the No. 2 base (9) to facilitate better integration of the bone with the cervical fusion device.
5. The adjustable cervical fusion device for minimally invasive procedures according to claim 1, characterized in that: Anti-slip teeth (13) are provided on the upper and lower surfaces of the first base (8) and the second base (9).
6. The adjustable cervical fusion device for minimally invasive surgery according to claim 5, characterized in that: The anti-slip teeth (13) are inclined to the side away from the hinge post (3).