Zimmer Gmbh

Bristol-myers Squibb Compnay

Zimmer Technology, Inc.

John J Barrette

Troy W Hershberger

Adam M Griner

Richard A Lane

Gregory S Meadows

Philip H Cripe

John P Maryan

Jeffrey A Kantor

J Gordon Shutek

A disassembly tool for disassembling components secured together by a mating taper connection. The disassembly tool of the present invention includes a self-tapping sleeve for securement in the longitudinal bore of the component having the female portion of the locking taper connection. The self-tapping sleeve includes self-tapping external threads for securing the self-tapping sleeve in the longitudinal bore of the component having the female taper. The self-tapping sleeve further includes a longitudinal bore having internal threads mating with external threads of a threaded inner rod. In use, the self-tapping sleeve is engaged in the longitudinal bore of the component having the female taper. The threaded inner rod is thereafter threaded through the threaded longitudinal bore in the self-taping sleeve until the distal end of the threaded rod abuts the end of the component having the male taper and forces separation of the locking taper connection.

Apparatus for disassembling mating taper connections

An IM rod has a proximal threaded portion that threads into the bone to increase the stability of the rod. The rod further includes an extended pointed tip for positive slip-free placement of the rod on the bone and an end cutting drill and reaming flutes for drilling a hole into and reaming the IM canal. Conformity between the shaft and the IM canal is increased to maximize stability by including a starter tip and drill as integral extensions of the shaft. Flutes extend up the rod beyond the drilling and reaming portion to allow decompression of the IM canal as the rod is inserted into the canal.

Threaded drill/IM rod

An orthopaedic positioner instrument 1 for positioning an implant 10 or other surgical device which includes a proximal portion with a transverse hole 17 therein. The instrument includes a locator post 53 or 353 adapted to be received in the transverse hole 17 and a first adjustable pressure applying means adapted to selectively apply pressure against a first outer surface, such as a shoulder 13, of an implant 10 to firmly hold the implant or other device 10 onto instrument 1. The instrument 1 may further include a second adjustable pressure applying means adapted to selectively apply pressure against a second surface of the device, such as the medial side 16 of implant 10.

Orthopaedic positioning instrument

Stem driver instrument for a femoral hip prosthesis

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Warsaw, IN, United States of America

John J Barrette