Acetabulum posterior wall fixing steel plate

Abstract

The utility model discloses an acetabulum posterior wall fixing steel plate which comprises a steel plate body and extending parts, the shape of the steel plate body is matched with the shape of the acetabulum posterior wall, steel plate fixing nail holes are evenly formed in the surface of the steel plate body, and the extending parts are detachably arranged on the upper end face and the lower end face of the steel plate body. And an extension part fixing nail hole is formed in the surface of the extension part. The problem that the size of an existing acetabulum posterior wall fixing steel plate cannot be conveniently adjusted according to the bone size of a patient is solved.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic instruments, and in particular to a posterior wall fixation plate for the acetabulum. Background Technology

[0002] Acetabular fracture is a serious injury to the hip joint that often requires surgical treatment. During treatment, doctors may use plates to fix the fracture site. Existing posterior acetabular wall fixation plates are usually one-piece molded, which has poor applicability after implantation. Because everyone's bone size is different, this mismatch can lead to slow healing. Moreover, if the patient is small in size and bone size, using a larger plate will cause a larger wound when placing and removing the plate, which is not good for aesthetics. Therefore, it is necessary to improve the existing posterior acetabular wall fixation plates. Utility Model Content

[0003] The purpose of this invention is to provide a posterior acetabular wall fixation plate to solve the problem that the size of existing posterior acetabular wall fixation plates is not convenient to adjust according to the patient's bone size.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A posterior wall fixation plate for the acetabulum includes a plate body and an extension. The shape of the plate body is adapted to the posterior wall of the acetabulum. The surface of the plate body is uniformly provided with plate fixing screw holes. The extension is detachably disposed on the upper and lower end faces of the plate body. The surface of the extension is provided with extension fixing screw holes.

[0006] The steel plate body is the basic size. During treatment, extensions can be added to the upper and lower ends of the steel plate body according to the size of the patient's bones. The spliced ​​posterior wall fixation steel plate is then implanted into the affected area. Steel nails are then driven into the fixation nail holes of the steel plate and the extensions to complete the installation of the posterior wall fixation steel plate. The overall size of the posterior wall fixation steel plate installed in this way can better match the size of the patient's bones, allowing the patient to heal better after installation, and avoiding the problem of a large wound due to an excessively large size.

[0007] As a further preferred embodiment of this utility model, the extension is composed of extension plates connected end to end, and each extension plate has an extension fixing nail hole on its surface.

[0008] The length of the extension can be adjusted by the number of extension plates.

[0009] As a further preferred embodiment of this utility model, the front end face of the extension plate is provided with a plug-in piece, and the rear end face of the extension plate is provided with a plug-in groove adapted to the plug-in piece. After the plug-in piece is inserted into the plug-in groove, the two are connected by connecting bolts.

[0010] When splicing extension plates, simply insert the connector of one extension plate into the connector slot of another extension plate, and then fix it with connecting bolts. This structure is simple.

[0011] As a further preferred embodiment of this utility model, the upper and lower ends of the steel plate body are also provided with insertion grooves that are adapted to the insertion pieces.

[0012] As a further preferred embodiment of this utility model, bolt head grooves are provided at the locations where connecting bolts are located on the surface of the steel plate body and at the locations where connecting bolts are located on the surface of the extension.

[0013] The bolt head of the connecting bolt can be completely hidden in the bolt head groove, so that it will not protrude and cause additional impact on the affected area.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] 1. The steel plate body is the basic size. During treatment, extensions can be added to the upper and lower ends of the steel plate body according to the size of the patient's bones. The spliced ​​posterior wall fixation steel plate is then implanted into the affected area. Steel nails are then driven into the fixation nail holes of the steel plate and the extensions to complete the installation of the posterior wall fixation steel plate. The overall size of the posterior wall fixation steel plate installed in this way can better match the size of the patient's bones, allowing the patient to heal better after installation, and avoiding the problem of a large wound due to an excessively large size.

[0016] 2. The length of the extension can be adjusted by the number of extension plates.

[0017] 3. When splicing extension plates, simply insert the connector of one extension plate into the connector slot of another extension plate, and then fix it with connecting bolts. This structure is simple.

[0018] 4. The bolt head of the connecting bolt can be completely hidden in the bolt head groove, and will not protrude and cause additional impact on the affected area. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the extension of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. 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.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Specific Implementation Example 1:

[0028] Figure 1 , Figure 2 A posterior wall fixation plate for the acetabulum is shown, comprising a plate body 1 and an extension 2. The shape of the plate body 1 is adapted to the posterior wall of the acetabulum. The surface of the plate body 1 is uniformly provided with plate fixing pin holes 11. The extension 2 is detachably disposed on the upper end face and the lower end face of the plate body 1. The surface of the extension 2 is provided with extension fixing pin holes 21.

[0029] The steel plate body is the basic size. During treatment, extensions can be added to the upper and lower ends of the steel plate body according to the size of the patient's bones. The spliced ​​posterior wall fixation steel plate is then implanted into the affected area. Steel nails are then driven into the fixation nail holes of the steel plate and the extensions to complete the installation of the posterior wall fixation steel plate. The overall size of the posterior wall fixation steel plate installed in this way can better match the size of the patient's bones, allowing the patient to heal better after installation, and avoiding the problem of a large wound due to an excessively large size. Specific Implementation Example 2:

[0031] This embodiment further describes the extension 2 based on specific embodiment 1. The extension 2 is composed of extension plates 22 connected end to end, and each extension plate 22 has an extension fixing nail hole 21 on its surface.

[0032] The length of the extension can be adjusted by the number of extension plates. Specific Implementation Example 3:

[0034] This embodiment further describes the extension plate 22 based on specific embodiment 2. The front end face of the extension plate 22 is provided with a plug-in piece 3, and the rear end face of the extension plate 22 is provided with a plug-in groove adapted to the plug-in piece. After the plug-in piece 3 is inserted into the plug-in groove, the two are connected by a connecting bolt 4.

[0035] When splicing extension plates, simply insert the connector of one extension plate into the connector slot of another extension plate, and then fix it with connecting bolts. This structure is simple. Specific Implementation Example 4:

[0037] This embodiment further describes the steel plate body 1 based on specific embodiment 3. The upper and lower end surfaces of the steel plate body 1 are also provided with insertion grooves that are adapted to the insertion piece 3. Specific Implementation Example 5:

[0039] This embodiment further describes the steel plate body 1 based on specific embodiment 1. The surface of the steel plate body 1 and the surface of the extension 2 at the location of the connecting bolt 4 are both provided with bolt head grooves.

[0040] The bolt head of the connecting bolt can be completely hidden in the bolt head groove, so that it will not protrude and cause additional impact on the affected area.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A posterior wall acetabular fixation plate, characterized by: Including steel plate body (1) and extension (2), the shape of the steel plate body (1) is adapted to the posterior wall of the acetabulum, the surface of the steel plate body (1) is uniformly provided with steel plate fixing pin hole (11), the extension (2) is detachably arranged on the upper end surface and the lower end surface of the steel plate body (1), and the surface of the extension (2) is provided with extension fixing pin hole (21).

2. The posterior wall hip arthrodesis plate of claim 1, wherein: The extension (2) is composed of extension small plates (22) connected head to tail, and the surface of each extension small plate (22) is provided with an extension fixing pin hole (21).

3. The posterior wall hip arthrodesis plate of claim 2, wherein: The front end surface of the extension small plate (22) is provided with an insertion piece (3), the rear end surface of the extension small plate (22) is provided with an insertion slot matched with the insertion piece, and the insertion piece (3) is inserted into the insertion slot and connected through a connecting bolt (4).

4. The posterior wall hip arthrodesis plate of claim 3, wherein: The upper end surface and the lower end surface of the steel plate body (1) are also provided with insertion slots matched with the insertion piece (3).

5. The posterior wall hip fixation plate of claim 1, wherein: The position of the connecting bolt (4) on the surface of the steel plate body (1) and the position of the connecting bolt (4) on the surface of the extension (2) are both provided with bolt head grooves.

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