Artificial alpha femoral stem prosthesis

Abstract

The invention provides an artificial alpha femoral stem prosthesis, which comprises a femoral stem cone, a femoral neck and a stem body in integral connection. The upper end face of the femoral neck is provided with a tool operating hole, the stem body comprises a femoral stem near section, a femoral stem middle section and a femoral stem far section, and a deflection angle is formed between the femoral neck and the stem body. By adoption of the integral structure, problems of abrasion, bone erosion and the like among components are eliminated; the femoral neck is wide in a motion range, stability in prosthesis implantation and effectiveness in rotation resistance are realized, great conditions are created for growth and proliferation of bone cells and soft tissues, the fixing effect of the prosthesis in a human body is improved, the service life of the prosthesis is prolonged, the surgical success rate is increased, and post-surgical pains of patients are alleviated. In addition, thesurface of the prosthesis is coated with a titanium microporous coating, biocompatibility of the prosthesis is improved, strength, plasticity and toughness of the prosthesis are matched with those ofhuman bones, and accordingly perfect matching of the prosthesis with femora of patients is realized.

Description

Technical field [0001] The invention relates to the technical field of artificial prosthesis replacement, in particular to an artificial alpha femoral stem prosthesis with a titanium microporous coating sprayed on the surface. Background technique [0002] Congenital hip dysplasia (congenital hip) is a condition in which the hip joint is abnormal. Some babies suffer from this condition at birth. The top of the femur is not properly integrated with the joint. This can cause limp and pain, and in more serious cases, it can even be disabled. If the first hip is not treated early, the hip joint will develop abnormally, such as the femoral anteversion angle is too large or too small, or the acetabulum is too shallow. This will cause difficulty in normal hip movement in adulthood. [0003] The current way to treat adults with first hip disease to return to walking is to implement total artificial hip replacement, in which a prosthesis is implanted into the hip through surgery to repl...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an artificial α-femoral stem prosthesis to solve the problems of wear between components, bone ablation, poor biocompatibility of the prosthesis, large inventory, high cost, artificial Problems such as physical need for intraoperative configuration, long operation time, patient pain and weight gain, and low success rate of operation

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