Split assembly type semi-pelvis replacement prosthesis

Abstract

Disclosed is a split assembly type semi-pelvis replacement prosthesis. The split assembly type semi-pelvis replacement prosthesis comprises an ilium-acetabulum prosthesis, wherein the ilium-acetabulumprosthesis comprises a first smooth prosthesis body with a hemispherical structure, a first porous contact part, a saddle type supporting bracket, an ear plate provided with at least one first nail position and a plurality of first suture holes; the first smooth prosthesis body, the first porous contact part, the saddle type supporting bracket and the lug plate are integrally formed; the saddle type supporting bracket is arranged on one side of the first porous contact part, and the lug plate is arranged on one edge, adjacent to the saddle type supporting bracket, of the first porous contactpart; and the plurality of first suture holes are formed in the first smooth prosthesis body. The split assembly type semi-pelvis replacement prosthesis has the advantages that four operation schemescan be provided in total, the prosthesis is suitable for multiple cases, wherein the prosthesis is completely loaded and used in the optimal scheme, and only the iliac-acetabulum prosthesis is used inthe secondary scheme, so that selectivity is high, and the prosthesis is more convenient and simpler to use.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a split-assembled hemi-pelvis replacement prosthesis. Background technique [0002] Acetabular tumor is a kind of tumor, and it is rare for it to occur in the acetabulum alone. Most acetabular tumors are destroyed by the tumor together with the ilium or pubic ischium, and even the entire hip bone is completely involved, thus forming the acetabulum surrounding tumors. [0003] At present, hemipelvic amputation can achieve a radical goal, but it is difficult for patients to accept it because of the loss of the affected limb. Although the acetabular reconstruction method in the prior art can satisfy the patient to obtain a complete affected limb after the completion of the hemipelvic amputation, the shape of the prosthesis is the same as that of the amputated original bone, and the prosthesis has a large shape and increases the difficulty of the operation. Defects; [000...

AI Technical Summary

Problems solved by technology

[0003] At present, hemipelvic amputation can achieve a radical goal, but because of the loss of the affected limb, it is difficult for patients to accept

Although the acetabular reconstruction method in the prior art can satisfy the patient to obtain a complete affected limb after the completion of the hemipelvic amputation, the shape of the prosthesis is the same as that of the amputated original bone, and the prosthesis has a large shape and increases the difficulty of the operation. Defects;

[0004] Furthermore, the surface of the prosthesis in the prior art is a grid structure, and there are sharp parts in the shape, which is easy to cause scratch loss to the soft tissues inside and outside the pelvis, especially the soft tissues in the pelvis are rich in nerves, and the implantation of the prosthesis will have a great impact. risk of irreversible injury to the patient

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