Femur upper segment hip-joint prosthesis

Abstract

The invention relates to a femur upper segment hip-joint prosthesis composed of a femoral head (1) and an osteotomy segment (2), a sliding chute (21), crossbeams (22) and stitching holes (23) are provided on the osteotomy segment (2), wherein, the sliding chutes (21) are arranged at the back of the osteotomy segment (2) to enable the back of the osteotomy segment (2) to form a pair of sliding chute wings (211); the crossbeam is one or more than one, which are fixedly connected at outer edges of the two sliding chute wings (211); the stitching holes (23) are two or more than two, the distribution positions of which are corresponding to the large rotor and small rotor positions of the lower part of the human body femur neck. The femur upper segment hip-joint prosthesis of the invention implements the integration of the prosthesis, skelecton and muscle, the bone transplantation, the stitching and the fixing after operation are convenient, the effect after operation is good, the buttocks of the patient after operation can be more approach to original shape.

Description

technical field [0001] The invention relates to a surgically implanted artificial prosthesis, in particular to a hip joint prosthesis in the upper part of the femur. Background technique [0002] For bone defects caused by comminuted fractures, bone tumors, osteolysis and bone resorption after artificial joint surgery, amputation was often used before the 1990s. see figure 1 Shown is the upper femoral hip joint prosthesis invented and used after the 1990s, which includes a femoral head 1, an osteotomy segment 2, and two metal circular rings 3, 4, which correspond to human hip joints respectively. Two bumps on the lower part of the articular femoral neck—the lateral greater trochanter and the medial lesser trochanter. During the implementation of prosthesis replacement surgery, the two metal circular rings can play a certain connection role for the suture of muscles. [0003] Although the above-mentioned upper femoral hip joint prosthesis can replace the patient's upper fe...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned upper femoral hip joint prosthesis can replace the patient's upper femoral hip joint, it is indeed progressive, but in actual use, it is found that there are still some shortcomings, resulting in the upper femoral hip joint prosthesis being used in practical applications. , failed to achieve the best use effect, and its shortcomings can be summarized as follows:

[0004] 1. The design of the metal circular ring is too simple, only considering the function of limb salvage, without much consideration of the postoperative joint function and the overall appearance of the patient;

[0005] 2. The fixation is not firm, and it cannot achieve long-term fixation and osseointegration, and it is only fixed by long-term scars;

[0006]3. The buttocks contracted severely after the operation, and the two buttocks were uneven in size

[0007] It can be seen that the above-mentioned existing upper femoral hip joint prosthesis obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently

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