Richard Allen Lane

US Patent:

59046880, May 18, 1999

Filed:

Dec 30, 1997

Appl. No.:

9/001214

Inventors:

Stephen G. Gilbert - West Chester PA
Rodney L. Bays - Pierceton IN
Billy N. Sisk - Claypool IN
Richard A. Lane - Fort Wayne IN

Assignee:

Bristol-Myers Squibb Co. - New York NY

International Classification:

A61F5/04

US Classification:

606 86

Abstract:

An orthopaedic assembly includes a first portion or an acetabular cup and a second connecting portion or a cup inserter. The acetabular cup includes a cavity for receiving a femoral head and a pole defining a longitudinal axis through the cavity. The acetabular cup further includes an annular face which bounds the cavity and has a plurality of notches extending therein. Each notch includes an undercut wall. The annular face further includes a projection receiving device. A cup inserter includes a body with an end face and a plurality of fingers extending from the end face. Each finger is insertable into a corresponding one of the notches in a direction parallel to the longitudinal axis and is rotatable around the longitudinal axis to a locking position. Each finger includes a transverse surface which matingly engages with a corresponding one of the undercut walls when the finger is in the locking position. The cup inserter further includes a projection and a biasing device.