Ligament fixing device for artificial joint

Abstract

The utility model discloses a ligament fixing device for an artificial joint, which is characterized by comprising a prosthesis and a ligament fixing bolt, a ligament fixing hole is formed in the surface of the prosthesis; the ligament fixing bolt is mounted in the ligament fixing hole; a cross beam is arranged on the inner wall of the ligament fixing bolt and used for hanging a ligament or a suture. According to the application of the ligament fixing device for the artificial joint, the ligament fixing hole is formed in the prosthesis, so that the ligament fixing hole can be formed in each joint prosthesis, the size problem does not need to be considered, then the ligament fixing bolt is installed at the position of the ligament fixing hole, and the ligament fixing device can be used for fixing the joint prosthesis. A beam is arranged on the inner wall of the top end of the ligament fixing bolt so that the ligament can be fixedly installed on the beam.

Description

Technical Field

[0001] The utility model relates to the technical fields of medical instruments and the like, and in particular to a ligament fixing device for an artificial joint. Background Art

[0002] At present, when replacing artificial joint prostheses in limb-sparing treatment after resection of malignant bone tumors in the limbs, it is necessary to fix the ligaments on the surface of the prosthesis. Conventionally, ligament passage channels are customized on the surface of the joint prosthesis. To facilitate the passage of the ligaments, the entrance and exit of the channel need to be separated by more than 4mm. However, the size of the joint prosthesis customized for children is small, and the space is limited, making it difficult to place the channel. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the present utility model is to provide a ligament fixing device for an artificial joint, which includes:

[0004] Prosthesis and ligament fixing bolts;

[0005] The surface of the prosthesis is provided with a ligament fixing hole;

[0006] The ligament fixing bolt is installed in the ligament fixing hole;

[0007] The inner wall of the ligament fixing bolt is provided with a crossbeam, and the crossbeam is used for hanging the ligament or suture.

[0008] In the above-mentioned ligament fixing device for artificial joint, the inner wall of the ligament fixing hole is provided with an internal thread.

[0009] In the above-mentioned ligament fixing device for artificial joint, the outer wall of the ligament fixing bolt is a circular structure, and the outer wall of the ligament fixing bolt is provided with an external thread, and the internal thread matches the external thread.

[0010] In the above-mentioned ligament fixing device for artificial joint, the inner wall of the ligament fixing bolt is a hexagonal structure, so that the ligament fixing bolt can be installed in the ligament fixing hole by a hexagonal hollow screwdriver.

[0011] In the above-mentioned ligament fixing device for artificial joint, the crossbeam can be a cylindrical limiting rod.

[0012] Compared with the prior art, the above technical solution has the following positive effects:

[0013] Through the application of the utility model, a ligament fixing device for an artificial joint is provided. By opening a ligament fixing hole on the prosthesis, a ligament fixing hole can be set on various joint prostheses without considering the size problem. Then a ligament fixing bolt is installed at the position of the ligament fixing hole. The inner wall of the top end of the ligament fixing bolt is provided with a cross beam, so that the ligament can be fixedly installed on the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of a ligament fixing device for an artificial joint.

[0015] Figure 2 It is a schematic diagram of the mounting hole in the utility model.

[0016] 1. Prosthesis; 2. Ligament fixing hole; 3. Ligament fixing bolt; 4. Crossbeam. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0019] like Figure 1 to Figure 2 As shown, a ligament fixing device for an artificial joint according to a preferred embodiment is shown, which includes: a prosthesis 1 and a ligament fixing bolt 3.

[0020] A ligament fixing hole 2 is provided on the surface of the prosthesis 1; a ligament fixing bolt 3 is installed in the ligament fixing hole 2; a crossbeam 4 is provided on the inner wall of the ligament fixing bolt 3, and the crossbeam 4 is used to suspend the ligament or suture.

[0021] During actual use, a ligament fixing hole 2 is provided on the prosthesis 1, so that a ligament fixing hole 2 can be provided on various joint prostheses without considering the size issue, and then a ligament fixing bolt 3 is installed at the position of the ligament fixing hole 2, and a cross beam 4 is provided on the inner wall of the top end of the ligament fixing bolt 3, so that the ligament passes through the ligament fixing hole 2, then bypasses the cross beam 4, and passes through the ligament fixing hole 2 to install the ligament on the prosthesis 1.

[0022] The utility model also has the following implementation methods based on the above:

[0023] Furthermore, a ligament fixing device for an artificial joint is provided, wherein the inner wall of the ligament fixing hole 2 is provided with an internal thread.

[0024] Further, a ligament fixing device for an artificial joint is provided, wherein the outer wall of the ligament fixing bolt 3 is a circular structure, and the outer wall of the ligament fixing bolt 3 is provided with an external thread, and the internal thread matches the external thread. Specifically, the ligament fixing bolt 3 is installed in the ligament fixing hole 2 through the thread structure, and the installation is simple and fast.

[0025] Further, a ligament fixing device for an artificial joint is provided, wherein the inner wall of the ligament fixing bolt 3 is a hexagonal structure, so that the ligament fixing bolt 3 can be installed in the ligament fixing hole 2 by a hexagonal hollow screwdriver. Specifically, the ligament fixing bolt 3 is tightened in the ligament fixing hole 2 using a hexagonal space screwdriver.

[0026] Further, in a ligament fixing device for an artificial joint, the crossbeam 4 can be a cylindrical limiting rod. Specifically, the ligament is suspended at the position of the cylindrical limiting rod without causing damage to the ligament.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A ligament fixation device for an artificial joint, characterized in that: include: Prosthesis and ligament fixing bolts; The surface of the prosthesis is provided with a ligament fixing hole; The ligament fixing bolt is installed in the ligament fixing hole; The inner wall of the ligament fixing bolt is provided with a crossbeam, and the crossbeam is used for hanging the ligament or suture.

2. A ligament fixation device for an artificial joint according to claim 1, characterized in that: The inner wall of the ligament fixing hole is provided with an internal thread.

3. A ligament fixation device for an artificial joint according to claim 2, characterized in that: The outer wall of the ligament fixing bolt is a circular structure, and the outer wall of the ligament fixing bolt is provided with an external thread, and the internal thread matches the external thread.

4. A ligament fixation device for an artificial joint according to claim 2, characterized in that: The inner wall of the ligament fixing bolt is a hexagonal structure, so that the ligament fixing bolt can be installed in the ligament fixing hole by a hexagonal hollow screwdriver.

5. The ligament fixing device for artificial joint according to claim 1, characterized in that: The crossbeam may be a cylindrical limiting rod.

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