Medial stabilized orthopaedic tibial insert

US11865011B2 · kind B2 · utility

Inventors

• Mark A. Heldreth · Mentone, US
• Travis D. Bennett · Huntington, US
• Amitkumar M. Mane · South Whitley, US
• Michael J. Rock · Leeds, GB
• Thomas E. Wogoman · Warsaw, US
• Stephen E. White · Fort Wayne, US

Key dates

• Filing date: Jul 10, 2021
• Grant date: Jan 9, 2024
• Expiry date: Aug 18, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/3863
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An orthopaedic knee prosthesis includes a tibial insert and a femoral component configured to articulate on the tibial insert. The tibial insert includes a lateral articular surface and medial articular surface that is asymmetrically shaped relative to the lateral articular surface. The medial articular surface is shaped to reduce anterior translation of a medial condyle of the femoral component, while the lateral articular surface is shaped to allow a lateral condyle of the femoral component to pivot, relative to the medial articular surface, along an arcuate articular path. Additionally, one or both condyles of the femoral component may include a femoral articular surface having a curved femoral surface section defined by a continuously decreasing radius of curvature.