mobile metal liner in polyethylene cup and length control cemented holes

摘要

The present invention relates to a cup constituting the artificial joint of the hip joint. If the joint ages or the fracture is broken or broken by accident, the hip joint should be replaced with an artificial joint. Hip prosthesis consists of acetabular cup and femoral stem. There are two types of acetabular cups. Cement type cups with metal surfaces to fix bones without growing cement are used in young people. It is fixed. Double cement type acetabular cups are composed of all-in-one plastic cups, and once fixed, the cement hardens, so that the entire cement must be removed to correct the wrong angle or deformation. However, the cementless acetabular cup with a metal contour has a rotatable plastic liner in the metal cup, which can be corrected during surgery.;The present invention inserts a metal liner into the cement-type acetabular cup to make the outside easier to use for cementing, and even if the cement is used by inserting a metal liner, which is a cobalt chromium alloy body, that does not wear out in contact with the artificial femoral head External cement-type acetabular cup, characterized in that the groove made to insert the polyethylene rod for cement to adjust the thickness of the outside and the cement thickness of the outside to be adjusted according to the required size.;Acetabular cup, liner