WILLIAM M. MIHALKO, MD
Medical Practice at Germantown Rd, Memphis, TN

2012009, Apr 19, 2012

Dec 22, 2009

13/141569

William Mihalko - Germantown TN, US
Khaled J. Saleh - Springfield IL, US
Said Moussa - Chamrandes, FR
Dominique Mouillet - Semoutlers, FR

AESCULAP IMPLANT SYSTEMS, LLC - Center Valley PA

A61F 2/38

623 2027

A knee prosthesis having a femoral component with two condyles, an opening disposed between the two condyles, and a tibial component having bearing surfaces to engage and support each of the femoral component condyles. Moving the femoral and tibial components in flexion from about 0° to about 165° causes medial pivot rotation of the femoral component upon the tibial component. Rotation may be caused by interaction between an asymmetrical cam extending between the femoral condyles and a post disposed between the bearing surfaces and extending superior from the tibial component. Rotation may alternatively be caused by asymmetrical medial and lateral condyles which translate posteriorly upon respective medial and lateral bearing surfaces at disparate rates, without a femoral cam, a tibial post, or a post/cam contact surface. Embodiments of the knee prosthesis may be used in cruciate-substituting or cruciate-retaining procedures. Embodiments of the knee prosthesis may also prevent roll forward.

2010016, Jun 24, 2010

Jun 15, 2009

12/484594

KHALED J. SALEH - Springfield IL, US
William Mihalko - Germantown TN, US
Said Moussa - Chamarandes, FR
Dominique Mouillet - Semoutiers, FR

AESCULAP AG - TUTTLINGEN

A61F 2/38

623 2031

A knee prosthesis having a femoral component with two condyles and an opening disposed between the two condyles. The prosthesis includes a cam extending between the condyles forming a posterior boundary to the opening. Also included is a tibial component having bearing surfaces to support each of the femoral component condyles, and a post disposed between the bearing surfaces and extending superior from the tibial component. The femoral component and tibial component are engageable by contact between the femoral condyles and tibial bearing surfaces, and by contact between the cam and post during at least a portion of flexion between the femoral and tibial components. Moving the femoral and tibial components in flexion from about 45° to about 145° causes a contact region between the cam and post to move inferiorly from a first contact region to a second contact region while also causing rotation between the tibial and femoral components.

2012014, Jun 7, 2012

Nov 8, 2011

13/291209

William Mihalko - Germantown TN, US
Khaled J. Saleh - Springfield IL, US
Said Moussa - Chamarandes, FR
Dominique Mouillet - Semoutiers, FR

AESCULAP AG - Tuttlingen

A61F 2/38

623 2027

A knee prosthesis includes a femoral component having two condyles and an asymmetrical cam extending between the condyles. The cam has a medial end and a lateral end. The knee prosthesis also includes a tibial component having bearing surfaces and a post disposed between the bearing surfaces. The femoral component and tibial component are engageable by contact between the femoral condyles and tibial bearing surfaces, and by contact between the cam and post. The cam includes a first curvature defined by a first plane passing through the cam, and a second curvature defined by a second plane passing through the cam, the first curvature having a first vertex, and the second curvature having a second vertex, the distance between the first vertex and a medial plane being greater than the distance between the second vertex and the medial plane.