ROBERT EMREY BOOTH, M.D.
Medical Practice at Walnut St, Philadelphia, PA

5688280, Nov 18, 1997

Jul 26, 1996

8/686894

Robert E. Booth - Philadelphia PA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN
Billy N. Sisk - Claypool IN
Steven E. Dietzel - Peru IN
Timothy R. Miller - Austin TX

Bristol-Myers Squibb Co. - New York NY

A61B 1715

606 88

The instrumentation set of this invention assists the surgeon in selecting the proper implant components, in determining the amount of distal bone to resect, and in aligning instrumentation designed to resect the bone. The instrumentation set provides numerous systems for verifying to the surgeon that he has correctly aligned the instruments prior to removing any bone. The set includes a rotational alignment guide, which aids the surgeon in establishing the appropriate rotational alignment for the knee as determined by reference to standard femoral landmarks such as the posterior condyles and epicondyles. The rotational alignment guide includes a slot for guiding a saw blade for removal of the posterior condyles of the femur. The set further includes a tensor designed to tense the knee joint in flexion and extension. The tensor is activated by a torque wrench so that a measured mount of tension force can be applied to the joint.

5908424, Jun 1, 1999

May 16, 1994

8/242987

Kim C. Bertin - Bountiful UT
Robert Booth - Philadelphia PA
Dennis W. Burke - Milton MA
Rodney Bays - Pierceton IN
Terry L. Dietz - Columbia City IN
Gregory C. Stalcup - Columbia City IN
Richard D. Vanlaningham - Milford IN

Zimmer, Inc, by said Stalcup, Dietz, Bays and Vanlaningham - Warsaw IN

A61B 1756

606 88

A tibial milling guide which incorporates a combination of instruments for producing a planar surface on a portion of the tibia using a milling device. The system includes: an extramedullary alignment guide with a detachable reference guide, an adjustable milling base assembly, a detachable milling template, a sizing gauge, and a milling depth gauge. The reference guide is used to position the alignment guide to the tibia. The reference guide has a T-shaped member which provides a planar reference and a centering reference to the tibial head. The reference guide also allows the surgeon to set the rotational alignment before the alignment guide is secured in place. The adjustable milling base assembly is also detachably connected to the alignment guide. The milling base assembly includes a slide and a shiftable base that allows for lateral adjustments of the template with respect to the articular surface after the alignment guide has been properly secured to the tibia. The milling base is also extensibly connected to the alignment guide to allow the spacing between the articular surface and the template to be adjusted.

5540696, Jul 30, 1996

Jan 6, 1995

8/369226

Robert E. Booth - Philadelphia PA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN
Billy N. Sisk - Claypool IN
Timothy R. Miller - Warsaw IN

Zimmer, Inc. - Warsaw IN

A61B 1715, A61B 1766

606 88

The instrumentation set of this invention assists the surgeon in selecting the proper implant components, in determining the amount of distal bone to resect, and in aligning instrumentation designed to resect the bone. The instrumentation set provides numerous systems for verifying to the surgeon that he has correctly aligned the instruments prior to removing any bone. The set includes a rotational alignment guide, which aids the surgeon in establishing the appropriate rotational alignment for the knee as determined by reference to standard femoral landmarks such as the posterior condyles and epicondyles. The rotational alignment guide includes a slot for guiding a saw blade for removal of the posterior condyles of the femur. The set further includes a tensor designed to tense the knee joint in flexion and extension. The tensor is activated by a torque wrench so that a measured amount of tension force can be applied to the joint.

6183470, Feb 6, 2001

Jul 2, 1999

9/346851

Robert E. Booth - Philadelphia PA
Gregory C. Stalcup - Columbia City IN

Bristol-Myers Squibb Company

A61B 1756

606 53

The invention herein describe reduces the concerns associated with the use of intramedullary instrumentation by providing for the reduction of pressure within the medullary canal as the intramedullary instrument is inserted. Specifically, in the preferred embodiment a sleeve having a proximal end connected to a vacuum source is fitted over the intramedullary rod so that as the rod is inserted into the intramedullary canal, the pressure within the canal is reduced to thereby reduce the magnitude of cells released into the blood stream. In order to draw air from the medullary canal, the proximal end of the sleeve includes a gasket which seal against the intramedullary rod causing the air to be drawn only from the distal end of the sleeve. In an alternative embodiment, an air passage is provided directly through the instrument with the exposed end of the instrument being connected to a vacuum source.

2007026, Nov 8, 2007

Dec 14, 2006

11/611021

Brian Earl - South Bend IN, US
Abraham Habegger - Milford IN, US
Aaron Hoffman - Salt Lake City UT, US
Kim Bertin - Bountiful UT, US
Lawrence Dorr - La Canada CA, US
Robert Booth - Philadelphia PA, US
Aaron Rosenberg - Deerfield IL, US
Sergio Romagnoli - Savona, IT

ZIMMER, INC. - Warsaw IN

A61F 2/38

623020350

A set of distal femoral knee prostheses which are designed to be more narrow in medial/lateral dimensions with increasing anterior/posterior size than existing prostheses to more closely correspond to the physical anatomy of female patients. The prostheses are designed to have a substantially trapezoidal shape or profile when viewed distally which features a more pronounced narrowing of the medial/lateral dimensions beginning at the posterior end of the prostheses and progressing anteriorly to the anterior end of the prostheses. Additionally, the prostheses each include a reduced profile patellar sulcus and reduced profile anterior condyles to more closely conform to the anatomy of a resected femur, and also include sulcus tracking optimized to conform to female anatomy.

2011009, Apr 21, 2011

Dec 21, 2010

12/974018

Brian D. Earl - South Bend IN, US
Abraham P. Habegger - Milford IN, US
Aaron A. Hofmann - Salt Lake City UT, US
Kim C. Bertin - Bountiful UT, US
Lawrence Dorr - La Canada CA, US
Robert E. Booth - Philadelphia PA, US
Aaron Rosenberg - Deerfield IL, US
Sergio Romagnoli - Saona, IT

ZIMMER, INC. - Warsaw IN

A61F 2/38

623 2035

A set of distal femoral knee prostheses which are designed to be more narrow in medial/lateral dimensions with increasing anterior/posterior size than existing prostheses to more closely correspond to the physical anatomy of female patients. The prostheses are designed to have a substantially trapezoidal shape or profile when viewed distally which features a more pronounced narrowing of the medial/lateral dimensions beginning at the posterior end of the prostheses and progressing anteriorly to the anterior end of the prostheses. Additionally, the prostheses each include a reduced profile patellar sulcus and reduced profile anterior condyles to more closely conform to the anatomy of a resected femur, and also include sulcus tracking optimized to conform to female anatomy.