Threaded acetabular cup for a hip joint prosthesis

摘要

The first thread (2) is for anchoring the screw socket in the hip bone, the thread base (2.1) of which is located on the cover surface (1.1) of the basic body. Between adjacent flanks (6.1,6.2) of the first thread a second thread (7) is provided filling out the thread base of the first thread. The local flank height of the second thread vertical to the cover surface is essentially less over the complete length of the second thread than the local flank height of the two adjacent flanks of the first thread.