Zimmer Gmbh

Depuy Synthes Products, Inc.

Timothy P Dolan

Douglas G Branscome

Amber Bertoni

Thomas E Wogoman

Bernice Aboud Gatrell

Karthik Balasubramanian

John J Hudak, Jr

Rakshak Nemiraj

Alexander D Jones

Sarah M Gedney

An annular cutting tool and related methods are provided for herein that exhibit improved durability, cutting performance, and/or reduced heat generation for bone graft resections. The annular cutting tool can include an annular body having cutting teeth with a flat, flared distal tip for greater durability. An extended gullet can be disposed between groups of adjacent cutting teeth to improve removal of bone debris away from the cutting teeth more and thus prevent binding during use. The annular cutting body can have a recessed surface portion to reduce the area of direct contact to bone and thus reduce heat generated. The recessed surface portion can also provide an area in which bone debris can accumulate away from the cutting teeth to prevent or reduce binding of the tool during use. The annular cutting body can also include a drill bit for drilling a hole in a resected bone graft.

Annular cutting tools for resecting a bone graft and related methods

The present disclosure provides an improved osteotome instrument for removing an acetabular cup from an acetabulum, including an explant adapter connectable to an elongated handle shaft of the instrument. The explant adapter is sized and shaped to connect any one of a set of a plurality of different sized interchangeable pivot elements, such as spherical heads, to the osteotome instrument for use in removing the acetabular cup from the acetabulum. The pivot heads may be relatively large diameter pivot heads.

Adapter for explant system

Femoral provisional prosthesis with cut guide

Combination modular femoral provisional prosthesis with cut guide

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Goshen, IN, United States of America

Timothy P Dolan