Human body personalized hip joint femoral stem prosthesis adopting lightweight design and manufacturing method thereof

Abstract

The invention relates to a human body personalized hip joint femoral stem prosthesis adopting lightweight design and a manufacturing method thereof, and belongs to the field of medical instruments. The human body personalized hip joint femoral stem prosthesis comprises a handle neck, a handle body, a vertebral body and a vertebral tip, wherein the upper part of the prosthesis is triangular, and the inner side angle is 90-120 degrees; the handle body adopts a hexagonal honeycomb structure unit for lightweight design; the handle body and the vertebral body can also be subjected to lightweight design at the same time, the lightweight design can adopt irregular opening or closing structure design or 3D lattice structure design, and the structural unit is preferably a diamond unit, a rhombic dodecahedron unit or a truncated cube unit; and the vertebral tip adopts a solid structure design. Through extraction of personalized features of the solid model and forward design with light weight asguidance, light-weight design is achieved while personalized customization is achieved, the weight of the hip joint femoral stem prosthesis can be reduced on the premise that the mechanical property is met, maximization of the material utilization rate is achieved, and meanwhile, a large amount of space is provided for bone regeneration and bone ingrowth, and the stability is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a human body personalized hip joint femoral stem prosthesis with lightweight design and a manufacturing method thereof. Background technique [0002] The hip joint is one of the important load-bearing joints of the human body, and plays a vital role in maintaining the human upright posture and moving and walking. However, with the growth of age, the emergence of arthritis and other problems seriously affects the normal physiological function of the hip joint. At present, the number of hip joint patients worldwide has exceeded 500,000. Based on the needs of patients, after nearly 40 years of development, artificial hip replacement has become an important means to relieve patients' pain and restore normal physiological functions of the human body. [0003] However, most of the hip femoral stem prostheses currently used clinically are of standard size and mass-produced, which cannot ...

AI Technical Summary

Problems solved by technology

[0003] However, most of the hip femoral stem prostheses currently used clinically are of standard size and mass-produced, which cannot meet the personalized customization needs of patients; in addition, most of the clinically practical hip femoral stem prosthesis are solid structures, heavy in weight and poor in stability , the patient cannot fully adapt after the prosthesis installation

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