SELF-CENTERING, ANTI-SEIZING ACETABULAR LINER

摘要

A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

主权项

1. A liner adapted for insertion into an acetabular shell for use in hip arthroplasty, the liner comprising:
a concave inner surface adapted to engage a femoral head; an outer surface adapted to engage the acetabular shell; a rim extending between the inner surface and the outer surface, wherein the outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section; and wherein the dome section extends from the composite-curved section at a transition point and the composite-curved section is tangential to the dome section at the transition point.