MICHAEL J. CHRISTIE, MD
Medical Practice at Patterson St, Nashville, TN

7942879, May 17, 2011

Jul 26, 2010

12/843653

Michael J. Christie - Nashville TN, US
David K. DeBoer - Franklin TN, US
Michael C. Jones - North Webster IN, US
Steven Wayne Smith - Fort Wayne IN, US
Brad Alan Parker - Warsaw IN, US
Charles W. Jaggers - Warsaw IN, US
Derek A. Shrack - Leesburg IN, US
James Ray Rogers - Winona Lake IN, US

DePuy Products, Inc. - Warsaw IN

A61B 17/70

606 79, 606 80, 606 87

A milling system is disclosed for creating a cavity in a bone. The cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side. The cavity is contiguous with a pre-existing conical cavity in the bone. The system comprises a drive shaft, a frame for carrying a cutter and a cutter for cutting the cavity. The drive shaft has a proximal end configured for coupling to a drive means and a distal end configured to form a portion of a drive joint for coupling the drive shaft to a cutter. The frame includes a shaft and a cutter mount for mounting a cutter at a first angle approximating the acute angle with respect to the shaft. The mount includes a bracket extending laterally from the shaft to a bearing configured to receive a portion of a cutter and maintain the received cutter oriented at the first angle during rotation. The cutter has a head configured to form a portion of a drive joint for coupling the cutter to a drive shaft.

5192329, Mar 9, 1993

Mar 7, 1991

7/665952

Michael J. Christie - Nashville TN
Alfred F. DeCarlo - Stamford CT
Timothy McTighe - Chagrin Falls OH
Douglas G. Noiles - New Canaan CT

Joint Medical Products Corporation - Stamford CT

A61F 231

623 22

An oblong acetabular cup which includes a cavity for receiving a bearing element is provided. The plane of the opening into the cavity is skewed relative to the prosthesis' longitudinal plane so as to achieve adduction correction, anteversion correction, or both adduction and anteversion correction. In certain preferred embodiments, the prosthesis is constructed from two components which can be oriented with respect to one another to achieve different directions and amounts of anteversion correction. In some embodiments, the two components form a cusp in the outside surface of the prosthesis. Surgical instruments and surgical methods for implanting the prostheses are disclosed.

5755809, May 26, 1998

Sep 20, 1996

8/717204

Robert C. Cohen - Rockaway Twsp. NJ
Michael J. Christie - Nashville TN

Implex Corporation - Allendale NJ

A61F 236, A61B 1774

623 23

A prosthesis for interfacing with an internal region of a bone of a given structure and function such as a femoral head and/or neck, wherein the internal region of the bone can be an avascular necrotic region. The prosthesis comprises porous filling member for filling a cored channel provided in the internal region of the bone to provide mechanical stability which preserves the function and the structure of the bone and accommodate an ingrowth of healthy vascularized bone tissue into the internal region of the bone. Also, a method for mechanically stabilizing a bone using the prosthesis.

2007014, Jun 21, 2007

Dec 21, 2005

11/314490

Paul Lewis - Warsaw IN, US
Michael Christie - Nashville TN, US
Ronald Hugate - Denver CO, US

A61F 2/34

623022360

An acetabular cup assembly for attachment to an acetabulum is provided. The cup assembly includes an acetabular cup including a first connector and a fastener. The fastener cooperates with the cup. The fastener includes a second connector. The first and second connectors cooperate to rigidly connect the fastener to the cup.

2007016, Jul 12, 2007

Dec 21, 2005

11/313492

Paul Lewis - Warsaw IN, US
Michael Christie - Nashville TN, US
Ronald Hugate - Aurora CO, US

A61F 2/32

623022210

An orthopaedic joint assembly for attachment to a bone is provided. The joint assembly includes a body having an interior wall defining an opening in the body and a fastener. The fastener has a portion of the fastener fitted through the opening of the body. The fastener is rigidly connected to the body.

7785328, Aug 31, 2010

Dec 30, 2003

10/748443

Michael J Christie - Nashville TN, US
David K. DeBoer - Franklin TN, US
Michael C. Jones - North Webster IN, US
Steven Wayne Smith - Fort Wayne IN, US
Brad Alan Parker - Warsaw IN, US
Charles W. Jaggers - Warsaw IN, US
Derek A. Shrack - Leesburg IN, US
James Ray Rogers - Winona Lake IN, US

DePuy Products, Inc. - Warsaw IN

A61B 17/00

606 79, 606 80, 606 82

A milling system for creating a cavity in a bone includes a drive shaft, a frame for carrying a cutter and a cutter for cutting the cavity. The drive shaft has a proximal end and a distal end forming a portion of a drive joint for coupling the drive shaft to a cutter. The frame includes a frame shaft and a cutter mount, mounting a cutter at a first angle. The mount includes a bearing bracket extending laterally from the frame shaft to a bearing receiving a portion of a cutter and maintains the received cutter oriented at the first angle during rotation. The cutter has a head forming a portion of drive joint for coupling the cutter to a drive shaft. The cutter is received in the mount at the first angle and the drive shaft forms a second angle with the longitudinal axis less than the first angle.

2007014, Jun 21, 2007

Dec 21, 2005

11/313466

Paul Peter Lewis - Warsaw IN, US
Michael Christie - Nashville TN, US
Ronald Hugate - Aurora CO, US

A61F 2/34, A61F 2/36

623022360, 623022370, 623022450

An acetabular cup assembly for attachment to an acetabulum is provided. The cup includes a body having an interior wall and defining an opening in the body. The cup also includes a fastener having a portion thereof fitted through the opening of the body. The fastener is rigidly connected to the body.