A distal anterolateral tibial locking plate

Abstract

The utility model relates to medical equipment technical field, concretely relates to a kind of distal end front lateral tibia locking steel plate, including distal end steel plate section, connecting portion and proximal end steel plate section being sequentially connected, the connecting portion is from the distal end steel plate section to the proximal end steel plate section setting, uses, the locking position of extension locking steel plate can be adjusted by extension locking component, i.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a distal anterolateral tibial locking plate. Background Technology

[0002] For fractures of the distal tibia, most require surgical treatment due to changes in joint compatibility and limb structure. The surgical procedure requires the use of a special tibial locking plate, avoiding areas with poor soft tissue conditions, and resolving all fractures with the fewest possible surgical approaches. Existing tibial locking plates are usually straight plates, with additional fixation components added to increase the support area.

[0003] For example, Chinese patent application CN 202021820171.6 discloses an overextension lateral anatomical locking plate for the tibial plateau, comprising a distal plate segment, a connecting portion, and a proximal plate segment. The connecting portion and the proximal plate segment each have two locking screw holes and a combination screw hole. Through a first fixation part, a locking bolt, and a second fixation part, the support area is expanded, providing sufficient mechanical support for the fracture fragments and improving the stability of the bone plate fixation, thus facilitating good anatomical fixation for the lateral tibial plateau. However, the tibia is not a completely straight bone, especially the distal portion, which exhibits some curvature and torsion. Using a straight-plate locking plate would create a gap between the plate and the bone, leading to stress concentration and increasing fracture healing time. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a distal anterolateral tibial locking plate to solve the technical problem that the tibia is not a completely straight bone, especially the distal part has a certain degree of curvature and torsion. Using a straight locking plate will result in a gap between the plate and the bone, which will lead to stress concentration and thus increase the fracture healing time.

[0005] To achieve the above objectives, this utility model provides a distal anterolateral tibial locking plate, comprising a distal plate segment, a connecting portion, and a proximal plate segment connected in sequence. Locking holes are provided on the distal plate segment, the connecting portion, and the proximal plate segment, and locking head screws are installed in the locking holes. Suture holes are provided on both the distal and proximal plate segments. The connecting portion is twisted from the distal plate segment to the proximal plate segment. The distal anterolateral tibial locking plate further includes:

[0006] The hinge joint has a fan-shaped groove on the distal steel plate segment, and the hinge joint is installed in the fan-shaped groove;

[0007] An extension locking assembly for extending the locking range of the distal steel plate segment.

[0008] Furthermore, the extended locking component includes;

[0009] A sleeve, which is rotatably mounted on the hinge joint;

[0010] An extension locking steel plate is installed on the outside of the sleeve via a universal ball joint;

[0011] An extension locking screw is installed in the middle of the extension locking plate.

[0012] Furthermore, a top support plate is provided on the distal steel plate segment within the fan-shaped groove, and the back of the extended locking steel plate abuts against the top support plate.

[0013] Furthermore, the two locking head screws that are adjacent in the vertical direction on the connecting part are staggered.

[0014] Furthermore, the twist angle of the connecting portion from the distal steel plate segment to the proximal steel plate segment is 45 degrees.

[0015] Furthermore, the outer edges of the distal steel plate segment, the connecting portion, and the proximal steel plate segment are all smooth curved surfaces.

[0016] Furthermore, the outer edge of the extended locking steel plate is a smooth curved surface.

[0017] Furthermore, the distal steel plate segment is provided with three locking holes, which are arranged in a triangular pattern.

[0018] The beneficial effects of this utility model are as follows: When using the distal anterolateral tibial locking plate of this utility model, the locking position of the extended locking plate can be adjusted by extending the locking assembly. That is, the extended locking plate can be rotated in the restricted area between the top support plate and the bottom surface of the fan-shaped groove, so that the extended locking plate can be rotated around the hinge joint within the fan-shaped groove to the actual locking position, which has a more precise support and fixation effect. Moreover, since the connecting part is set with a torsional trend from the distal plate section to the proximal plate section, it can more effectively attach to the distal end of the tibia by mimicking the actual shape of the bone. At the same time, it helps to distribute the load, reduce local stress, and improve the healing speed and effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a structural schematic diagram of the distal steel plate segment, the connecting part, and the proximal steel plate segment in this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0024] Figure 5 This is an assembly diagram of the extended locking component in this utility model.

[0025] The diagram is marked as follows:

[0026] 1. Distal steel plate segment; 2. Connecting part; 3. Proximal steel plate segment; 4. Locking hole; 5. Locking head screw; 6. Seaming hole; 7. Hinge joint; 8. Fan-shaped groove; 9. Sleeve; 10. Extension locking steel plate; 11. Universal ball joint; 12. Extension locking screw; 13. Top support plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] An embodiment of this utility model proposes a distal anterolateral tibial locking plate, such as... Figure 1-5As shown, the device includes a distal plate segment 1, a connecting portion 2, and a proximal plate segment 3 connected in sequence. Locking holes 4 are provided on the distal plate segment 1, the connecting portion 2, and the proximal plate segment 3, and locking head screws 5 are installed in the locking holes 4. Suture holes 6 are provided on both the distal plate segment 1 and the proximal plate segment 3. The connecting portion 2 is twisted from the distal plate segment 1 to the proximal plate segment 3. The distal anterolateral tibial locking plate also includes:

[0030] The hinge joint 7 has a fan-shaped groove 8 at the far end of the steel plate section 1, and the hinge joint 7 is installed in the fan-shaped groove 8.

[0031] An extension locking assembly for extending the locking range of the distal steel plate segment 1.

[0032] In this embodiment, the extended locking component includes;

[0033] Sleeve 9 is rotatably mounted on hinge joint 7;

[0034] The extension locking steel plate 10 is installed on the outside of the sleeve 9 via the universal ball joint 11;

[0035] An extension locking screw 12 is installed in the middle of the extension locking plate 10.

[0036] In this embodiment, a top support plate 13 is provided on the distal steel plate segment 1 within the fan-shaped groove 8, and the back of the extended locking steel plate 10 abuts against the top support plate 13.

[0037] Working process and principle: In this embodiment, during use, the locking position of the extension locking steel plate 10 can be adjusted by extending the locking assembly. That is, the extension locking steel plate 10 can be rotated in the restricted area between the top support plate 13 and the bottom surface of the fan-shaped groove 8, so that the extension locking steel plate 10 can be rotated around the hinge joint 7 within the fan-shaped groove 8 to the actual locking position, which has a more precise support and fixation effect. In addition, since the connecting part 2 is set with a torsional trend from the distal steel plate section 1 to the proximal steel plate section 3, it can more effectively attach to the distal end of the tibia by mimicking the actual shape of the bone, while helping to distribute the load and reduce local stress.

[0038] In this embodiment, as Figure 1 , Figure 2 As shown, two vertically adjacent locking head screws 5 on the connecting part 2 are staggered to provide a reliable gripping force for the distal tibial bone and shaft.

[0039] In this embodiment, as Figure 2 As shown, the twist angle of the connecting part 2 from the distal steel plate section 1 to the proximal steel plate section 3 is 45 degrees.

[0040] In this embodiment, as Figure 1 , Figure 2 As shown, the outer edges of the distal steel plate segment 1, the connecting part 2, and the proximal steel plate segment 3 are all smooth curved surfaces, which can achieve reliable fixation while avoiding damage to muscles or nerves.

[0041] In this embodiment, as Figure 3 , Figure 5 As shown, the outer edge of the extended locking steel plate 10 is a smooth curved surface, which expands the locking area while avoiding damage to muscles or nerves.

[0042] In this embodiment, as Figure 1 As shown, the distal steel plate segment 1 is provided with three locking holes 4, which are arranged in a triangle to achieve a secure lock while also preventing linear tearing of the distal tibial bone.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A distal anterolateral tibial locking plate, comprising a distal plate segment (1), a connecting portion (2), and a proximal plate segment (3) connected in sequence, wherein locking holes (4) are provided on the distal plate segment (1), the connecting portion (2), and the proximal plate segment (3), and locking head screws (5) are installed in the locking holes (4), and suture holes (6) are provided on the distal plate segment (1) and the proximal plate segment (3), characterized in that, The connecting portion (2) is twisted from the distal steel plate segment (1) to the proximal steel plate segment (3), and the distal anterolateral tibial locking plate further includes: The hinge joint (7) has a fan-shaped groove (8) on the distal steel plate segment (1), and the hinge joint (7) is installed in the fan-shaped groove (8); An extension locking assembly for extending the locking range of the distal steel plate segment (1).

2. The distal anterolateral tibial locking plate according to claim 1, characterized in that, The extended locking component includes; Sleeve (9), which is rotatably mounted on the hinge joint (7); An extension locking steel plate (10) is installed on the outside of the sleeve (9) via a universal ball joint (11); An extension locking screw (12) is installed in the middle of the extension locking plate (10).

3. The distal anterolateral tibial locking plate according to claim 2, characterized in that, The distal steel plate segment (1) is provided with a top support plate (13) in the fan-shaped groove (8), and the back of the extended locking steel plate (10) abuts against the top support plate (13).

4. The distal anterolateral tibial locking plate according to claim 1, characterized in that, The two locking head screws (5) that are adjacent in the vertical direction on the connecting part (2) are staggered.

5. The distal anterolateral tibial locking plate according to claim 1, characterized in that, The twist angle of the connecting part (2) from the distal steel plate section (1) to the proximal steel plate section (3) is 45 degrees.

6. The distal anterolateral tibial locking plate according to claim 1, characterized in that, The outer edges of the distal steel plate segment (1), the connecting part (2), and the proximal steel plate segment (3) are all smooth curved surfaces.

7. The distal anterolateral tibial locking plate according to claim 2, characterized in that, The outer edge of the extended locking steel plate (10) is a smooth curved surface.

8. The distal anterolateral tibial locking plate according to claim 1, characterized in that, The distal steel plate segment (1) is provided with three locking holes (4), which are arranged in a triangular pattern.

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