Acetabular prosthesis, hip prosthesis and acetabular prosthesis implantation method

Abstract

The invention provides an acetabular prosthesis, a hip joint prosthesis and an implantation method of the acetabular prosthesis, relating to the technical field of artificial joints. The acetabular prosthesis comprises an acetabular base and a nickel-titanium wire support. The acetabular base was semicircular. The outer surface of the acetabular base is connected with one end of the nickel-titanium wire support part, and the other end of the nickel-titanium wire support part is attached to the outer surface of the acetabular base. The phase transition temperature of the nickel-titanium wire support part is in the range of 37 DEG C to 50 DEG C. The problem that the initial fixation and long-term fixation of the existing hip joint prosthesis are not firm is solved. The nickel-titanium wire support part of the invention has biological safety. The external surface of acetabular prosthesis is implanted into the acetabular fossa of human body, and the nickel-titanium wire support can be inserted into the bone gap of acetabular fossa of human body at a certain temperature, so as to achieve the effect of initial fixation and long-term fixation firmly.

Description

technical field [0001] The invention relates to the technical field of artificial joints, in particular to an acetabular prosthesis, a hip joint prosthesis and an implantation method of the acetabular prosthesis. Background technique [0002] The fixation effect of biologically fixed acetabular prosthesis in artificial hip joint prosthesis has always been the focus of attention in the academic and engineering circles. The fixation effect can be divided into two stages, initial fixation and long-term fixation. For the initial fixation, the mainstream treatment method is to design multiple holes in the acetabular cup and realize it by means of self-tapping screws. For long-term fixation, the main goal of biological fixation is to hope that bone tissue can grow into the acetabular cup. The mainstream treatment method is spraying on the outer surface of the acetabular cup, such as titanium coating, tantalum coating, hydroxyapatite Stone coating, or bone trabecular structure, et...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of acetabular prosthesis, and to solve the technical problems existing in the prior art, the initial fixation of the bio-fixed acetabular prosthesis is not firm and the long-term fixation is not firm

[0006] The present invention also provides a hip joint prosthesis to solve the technical problems of weak initial fixation and long-term fixation of the biologically fixed acetabular prosthesis in the prior art

[0007] The present invention also provides a method for implanting an acetabular prosthesis to solve the technical problems in the prior art that the initial fixation and long-term fixation of the biologically fixed acetabular prosthesis are not firm and the fixation process is laborious.

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