Audrey M Beckman

US Patent:

6402786, Jun 11, 2002

Filed:

Jun 29, 2000

Appl. No.:

09/606608

Inventors:

John N. Insall - New York NY
Mark Heldreth - Mentone IN
Vince Webster - Warsaw IN
Steve Zawadski - Leesburg IN
Roy Yoshikazu Hori - Tokyo, JP
Kyoko Ohkuni - Shizuoka, JP
Audrey Beckman - Warsaw IN
William Rohr - Cincinnati OH

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61F 238

US Classification:

623 2035

Abstract:

A femoral knee implant includes a fourth compartment of articulation. The superior posterior articulating surface is achieved by first increasing the thickness of the superior posterior condylar portion of the femoral component to widen the superior posterior edge of the posterior condyle. Second, the newly created surface at the superior posterior condyle is smoothly rounded to provide an articular surface with no sharp changes in the surface contours. In one embodiment, the fourth articular compartment of this invention is provided in a one piece femoral design. In another embodiment, it is provided as a modular addition to an existing prior art femoral component. In another embodiment, the fourth compartment is combined with a posterior stabilized (PS) TKR design that includes a tibial post and cooperating femoral cam characterized by low engagement of the cam on the spine.

US Patent:

D3376397, Jul 20, 1993

Filed:

Nov 21, 1990

Appl. No.:

7/618328

Inventors:

Audrey M. Beckman - Warsaw IN

Assignee:

Zimmer, Inc. - Warsaw IN

US Classification:

D24133

US Patent:

61237299, Sep 26, 2000

Filed:

Mar 10, 1998

Appl. No.:

9/037417

Inventors:

John N. Insall - New York NY
Mark Heldreth - Mentone IN
Vince Webster - Warsaw IN
Steve Zawadski - Leesburg IN
Roy Yoshikazu Hori - Tokyo, JP
Kyoko Ohkuni - Shizuoka, JP
Audrey Beckman - Warsaw IN
William Rohr - Cincinnati OH

Assignee:

Bristol-Myers Squibb Company - New York NY

International Classification:

A61F 238

US Classification:

623 2031

Abstract:

A femoral knee implant includes a fourth compartment of articulation. The superior posterior articulating surface is achieved by first increasing the thickness of the superior posterior condylar portion of the femoral component to widen the superior posterior edge of the posterior condyle. Second, the newly created surface at the superior posterior condyle is smoothly rounded to provide an articular surface with no sharp changes in the surface contours. In one embodiment, the fourth articular compartment of this invention is provided in a one piece femoral design. In another embodiment, it is provided as a modular addition to an existing prior art femoral component. In another embodiment, the fourth compartment is combined with a posterior stabilized (PS) TKR design that includes a tibial post and cooperating femoral cam characterized by low engagement of the cam on the spine.

US Patent:

59579790, Sep 28, 1999

Filed:

Dec 12, 1997

Appl. No.:

8/989729

Inventors:

Audrey M. Beckman - Warsaw IN
Paul D. Schoenle - South Bend IN
James F. Smith - Goshen IN

Assignee:

Bristol-Myers Squibb Company - New York NY

International Classification:

A61F 238

US Classification:

623 20

Abstract:

In the subject invention, the articulating component includes a metal tray and a polyethylene bearing molded or otherwise connected to the metal tray. The distal surface of the metal tray, the surface in contact with the tibial component, is highly polished and is substantially flat. The proximal surface of the tibial component, the surface in contact with the articulating component, is likewise highly polished and substantially flat. In use, the two highly polished flat surfaces provide an environment wherein the articulating surface may freely move relative to the tibial component as the patient's knee joint is flexed and extended during movement.