A self-stable tlif cage

Abstract

The utility model belongs to the technical field of medical apparatus and instruments relates to a self -stabilizing type TLIF fusion ware, including fusion ware body and the anchor element of setting in fusion ware body upper and lower two sides, fusion ware body proximal end has the open slot, the open slot and fusion ware body upper and lower two sides endplate groove form respectively with two anchor element two installation passageway of cooperation, one end of anchor element is through wide cooperation in open slot, the other end passes through the endplate groove and extends to the direction of far away from fusion ware body upper side or lower side through the tip, still have the elastic barb of cooperation with endplate groove on anchor element, and set up between the tip and elastic barb prevent the barb of falling back. The utility model can connect fusion ware body and vertebral body through anchor element, thereby avoided the use of auxiliary fixation such as pedicle screw, because of not needing additional auxiliary fixation, therefore can effectively reduce the incision in operation, shorten recovery time, reduce the economic pressure of patient.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a self-stabilizing TLIF fusion device. Background Technology

[0002] Transforaminal lumbar interbody fusion (TLIF) is a minimally invasive procedure that involves making a small incision through the intervertebral foramen to access the intervertebral space and perform lumbar fusion. Traditional TLIF fusion devices lack their own anchoring elements and require the insertion of pedicle screws for auxiliary fixation. However, the pedicles of the vertebrae above and below the patient need to be exposed before pedicle screw insertion, inevitably increasing the surgical incision and muscle dissection, thus increasing the difficulty of the surgery and prolonging recovery time. Furthermore, the need for additional pedicle screws for auxiliary fixation also increases the financial burden on the patient. Utility Model Content

[0003] The purpose of this invention is to address the defects and shortcomings of existing technologies by designing a self-stabilizing TLIF fusion device that can provide stable support, improve fusion rate, reduce surgical pain, and lower the economic burden on patients.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a self-stabilizing TLIF fusion device, comprising a fusion device body and anchoring elements disposed on the upper and lower sides of the fusion device body. The fusion device body has an opening groove at its proximal end, and the opening groove and the end plate grooves on the upper and lower sides of the fusion device body respectively form two installation channels that cooperate with the two anchoring elements. One end of the anchoring element is fitted into the opening groove through its wide portion, and the other end extends away from the upper or lower side of the fusion device body through its pointed end through the end plate groove. The anchoring element also has elastic barbs that cooperate with the end plate groove, and anti-backward barbs disposed between the pointed end and the elastic barbs.

[0005] Preferably, the widths of the wide portion, the elastic barb, and the anti-reverse barb are arranged in descending order, and the width of the wide portion is greater than the width of the opening groove, and the width of the elastic barb is greater than the width of the end plate groove.

[0006] Preferably, the anchoring element has an arc-shaped design, gradually curving away from the fusion unit body from the wide part to the tip.

[0007] Preferably, the opening direction of the anti-reverse barbs and the elastic barbs is opposite to the extension direction of the anchoring element.

[0008] Preferably, the fusion unit body has a "C" shaped structure design, with one side being concave and the other side being convex, and the two mounting channels are designed to be inclined from the concave end to the convex end.

[0009] Preferably, the fusion device body includes a main body segment and a head segment. The upper and lower surfaces of the main body segment are provided with a first tooth-shaped structure, and the upper and lower surfaces of the head segment are curved. The upper and lower surfaces of the head segment are also provided with a second tooth-shaped structure.

[0010] Preferably, the first toothed structure has an arc-shaped groove at its bottom, and the second toothed structure forms an inclined guide extending toward the distal end of the fusion body.

[0011] Preferably, the main body segment of the fusion device is also provided with a through groove.

[0012] Preferably, the near end of the fusion device body is also provided with a threaded hole.

[0013] After adopting the above technical solution, the self-stabilizing TLIF fusion device provided by this utility model has the following beneficial effects:

[0014] This invention, through the design of anchoring elements, can connect the fusion device body to the vertebral body, thereby avoiding the use of auxiliary fixation such as pedicle screws; since no additional auxiliary fixation is required, it can effectively reduce intraoperative incisions, shorten recovery time, and reduce the economic burden on patients. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a self-stabilizing TLIF fusion device according to the present invention;

[0016] Figure 2 This is a side view of a self-stabilizing TLIF fusion device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the fusion device body in this utility model;

[0018] Figure 4 This is a schematic diagram of the anchoring element in this utility model.

[0019] The components include: 1. Fusion body; 2. Anchoring element; 3. Opening groove; 4. End plate groove; 5. Wide section; 6. Tip; 7. Elastic barb; 8. Anti-reverse barb; 9. Main body section; 10. Head section; 11. First tooth structure; 12. Second tooth structure; 13. Through groove; 14. Threaded hole. Detailed Implementation

[0020] The present invention will now be described in further clear and complete detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] This utility model discloses a self-stabilizing TLIF fusion converter, such as... Figure 1-4 As shown, the device includes a fusion body 1 and anchoring elements 2 disposed on the upper and lower sides of the fusion body. The fusion body 1 has an opening groove 3 near its proximal end. The opening groove 3 and the end plate grooves 4 on the upper and lower sides of the fusion body 1 respectively form two installation channels that cooperate with the two anchoring elements 2. One end of the anchoring element 2 is fitted into the opening groove 3 through a wide portion 5, and the other end extends away from the upper or lower side of the fusion body 1 through the end plate groove 4 through a pointed tip 6. The anchoring element 2 also has an elastic barb 7 that cooperates with the end plate groove 4, and an anti-backward barb 8 disposed between the pointed tip 6 and the elastic barb 7.

[0027] The widths of the wide portion 5, the elastic barb 7, and the anti-reverse barb 8 are arranged in descending order, with the width of the wide portion 5 being greater than the width of the opening groove 3, and the width of the elastic barb 7 being greater than the width of the end plate groove 4. This facilitates insertion and allows the wide portion 5 and the elastic barb 7 to work together to fix one end of the anchoring element 2 to the fusion body 1, preventing the anchoring element 2 from moving left and right. Furthermore, the anchoring element 2 has an arc-shaped design, gradually bending away from the fusion body 1 from the wide portion 5 to the tip 6. The opening directions of the anti-reverse barb 8 and the elastic barb 7 are opposite to the extension direction of the anchoring element 2, providing a better anti-reverse function.

[0028] The fusion body 1 has a "C" shaped structure design, with one side being concave and the other side being convex. The two mounting channels are designed to slope from the concave end to the convex end. Furthermore, the fusion body 1 includes a main body segment 9 and a head segment 10. The upper and lower surfaces of the main body segment 9 are provided with a first tooth structure 11. The upper and lower surfaces of the head segment 10 are curved and are provided with a second tooth structure 12. The bottom of the first tooth structure 11 is provided with an arc-shaped groove. The second tooth structure 12 forms an inclined guide extending towards the distal end of the fusion body 1. The main body segment 9 of the fusion body 1 is also provided with a through groove 13, and the proximal end of the fusion body 1 is also provided with a threaded hole 14.

[0029] In summary, the self-stabilizing TLIF fusion device provided by this utility model can connect the fusion device body to the vertebral body through anchoring elements, thereby avoiding the use of auxiliary fixation such as pedicle screws. Since no additional auxiliary fixation is required, it can effectively reduce intraoperative incisions, shorten recovery time, and reduce the economic burden on patients. It has great market value and is worthy of widespread promotion and application.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-stabilizing TLIF fusion converter, characterized in that: The device includes a fusion body (1) and anchoring elements (2) disposed on the upper and lower sides of the fusion body. The fusion body (1) has an opening groove (3) at its proximal end. The opening groove (3) and the end plate grooves (4) on the upper and lower sides of the fusion body (1) respectively form two installation channels that cooperate with the two anchoring elements (2). One end of the anchoring element (2) is fitted in the opening groove (3) through the wide part (5), and the other end extends away from the upper or lower side of the fusion body (1) through the tip (6) through the end plate groove (4). The anchoring element (2) also has an elastic barb (7) that cooperates with the end plate groove (4) and an anti-backward barb (8) disposed between the tip (6) and the elastic barb (7).

2. The self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The widths of the wide portion (5), the elastic barb (7), and the anti-reverse barb (8) are arranged in descending order, and the width of the wide portion (5) is greater than the width of the opening groove (3), and the width of the elastic barb (7) is greater than the width of the end plate groove (4).

3. The self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The anchoring element (2) is designed in an arc shape, gradually bending away from the fusion body (1) from the wide part (5) to the tip (6).

4. A self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The opening directions of the anti-reverse barbs (8) and the elastic barbs (7) are opposite to the extension direction of the anchoring element (2).

5. A self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The fusion body (1) is designed in a "C" shape, with one side being concave and the other side being convex. The two mounting channels are designed to be inclined from the concave end to the convex side.

6. A self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The fusion body (1) includes a main body segment (9) and a head segment (10). The upper and lower surfaces of the main body segment (9) are provided with a first tooth structure (11). The upper and lower surfaces of the head segment (10) are curved, and the upper and lower surfaces of the head segment (10) are provided with a second tooth structure (12).

7. A self-stabilizing TLIF fusion converter according to claim 6, characterized in that: The first tooth structure (11) has an arc-shaped groove at the bottom, and the second tooth structure (12) forms an inclined guide extending toward the far end of the fusion body (1).

8. A self-stabilizing TLIF fusion converter according to claim 6, characterized in that: The main body section (9) of the fusion device body (1) is also provided with a through groove (13).

9. A self-stabilizing TLIF fusion converter according to claim 1, characterized in that: The near end of the fusion body (1) is also provided with a threaded hole (14).

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