David A Tuttle

US Patent:

8403994, Mar 26, 2013

Filed:

Jan 19, 2011

Appl. No.:

13/009158

Inventors:

William J. Maloney - Palo Alto CA, US
J. David Blaha - Ann Arbor MI, US
C. Lowry Barnes - Little Rock AR, US
John M. Green - Arlington TN, US
David R. Tuttle - Memphis TN, US

Assignee:

Wright Medical Technology, Inc. - Arlington TN

International Classification:

A61F 2/38

US Classification:

623 2035, 623 2021, 623 2026, 623 2028, 623 2031, 623 2014

Abstract:

Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0. 74 and a lateral tibial aspect ratio of 0. 65 to 0. 68 for all sizes.

US Patent:

20130345820, Dec 26, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/840931

Inventors:

William J. Maloney - Palo Alto CA, US
J. David Blaha - Ann Arbor MI, US
C. Lowry Barnes - Little Rock AR, US
John M. Green - Arlington TN, US
David R. Tuttle - Memphis TN, US

Assignee:

WRIGHT MEDICAL TECHNOLOGY, INC. - Arlington TN

International Classification:

A61F 2/38

US Classification:

623 2031

Abstract:

Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.