Tibial bearing component for a knee prosthesis with improved articular characteristics

US8858643B2 · kind B2 · utility

Assignee

• Zimmer, Inc. · US

Inventors

• Raymond C. Parisi · Wakarusa, US
• Abraham P. Habegger · Warsaw, US
• Peter S. Walker · Ridgewood, US
• Jeff Blaylock · Fort Wayne, US
• Kathleen Macke · Warsaw, US

Key dates

• Filing date: Apr 27, 2012
• Grant date: Oct 14, 2014
• Expiry date: Apr 27, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/30616
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An orthopaedic knee prosthesis includes a tibial bearing component with surface features which operate to protect adjacent soft tissues of the natural knee throughout a wide range of flexion. More particularly, the tibial bearing component provides an anterior relief space disposed between the dished lateral and medial articular compartments, in which the relief space is convex as viewed from a sagittal perspective across the medial/lateral extent of the relief space.