Acetabular cup and bearing and acetabular cup assembly for hip joint prosthesis

摘要

The present invention relates to an acetabular cup assembly for an artificial hip, in particular, a seating groove is formed, an arm taper is formed on the inner wall, and a protrusion groove is formed to communicate with the seating groove, and the fitting groove is disposed inside the protrusion groove. The formed acetabular cup, and seated in the seating groove, a male taper is formed on the outer circumferential surface, a projection is inserted into the projection groove is formed, the projection includes a bearing formed with a fitting projection is fitted to the fitting groove In addition, the polyethylene bearing can be firmly fixed to the acetabular cup, and the ceramic bearing can be inserted into the acetabular cup to increase the contact area between the bearing and the acetabular cup, thereby preventing the ceramic bearing from cracking. It is related to an acetabular cup assembly for hip joints that is not formed to improve strength.