Patent · US Active

Self centering, anti-seizing acetabular liner

US8771367B2 · kind B2 · utility

4Cited by

5References

4Claims

0Family size

Assignee

DePuy Synthes Products, Inc. · US

Inventors

John M. Armacost · Warsaw, US
James A. Caywood · Fort Wayne, US
Ryan C. Keefer · Warsaw, US

Key dates

Filing date	Sep 20, 2012
Grant date	Jul 8, 2014
Priority date	—
Expiry date	Sep 20, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2002/3459
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.