Design method of bionic porous gradient artificial hip joint matrix

Abstract

The invention relates to a design method of a bionic porous gradient artificial hip joint matrix. According to the design method of the bionic porous gradient artificial hip joint matrix, a low-density area, a medium-density area and a high-density area with ordered porous gradient properties are separately constructed on basis of three basic units, including a low-density area, a medium-density area and a high-density area; and then, the three units are combined so as to construct a matrix part of an artificial hip joint model. The design method of the bionic porous gradient artificial hip joint matrix utilizes a bone joint matrix with porous gradient properties as a bionic template; and bionic design is performed on arrangement ways and spatial layouts of the three basic units with different structures and density characteristics so as to obtain a bionic artificial hip joint matrix which is relatively close to a bone joint before replacement in terms of mechanical properties, so thatcomplications of aseptic loosening in previous artificial joint replacement operation can be effectively avoided so as to improve service life and reliability of the artificial joint.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a design method of a bionic porous gradient artificial hip joint matrix. Background technique [0002] The hip joint is one of the largest weight-bearing joints in the human body. Its structure is closely related to the mechanical properties of the human body, and determines human behavior and movement to a large extent. Because of the importance of the hip joint, the artificial hip joint was the first artificial joint to be studied. Since the 1960s, the emergence of artificial hip joints composed of metal femoral heads and ultra-high molecular weight polyethylene acetabulums and bone cement fixation technology has led to the large-scale clinical application of artificial hip joints. [0003] After the artificial hip joint is implanted in the human body, its service life depends not only on the nature of the artificial hip joint itself, but also on the bone tissue near t...

AI Technical Summary

Problems solved by technology

After the implantation of the artificial hip joint, although the overall stress pattern of the femur has not been changed, the stress level of the bone around the artificial hip joint prosthesis at the proximal end of the femur is reduced, so that the activity of osteoclasts is stronger than that of osteoblasts, resulting in Osteolysis

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