Femoral knee prosthesis system with augments and multiple lengths of sleeves sharing a common geometry

US9532879B2 · kind B2 · utility

Assignee

• DEPUY IRELAND UNLIMITED COMPANY · IE

Inventors

• Jay R. Lieberman · Los Angeles, US
• Benjamin J. Sordelet · Columbia City, US
• Richard Spencer Jones · Shrewsbury, GB
• Timothy G. Vendrely · Warsaw, US
• Stephanie M. Wainscott · Warsaw, US
• Michael Cook · Claypool, US
• Rebecca L. Chaney · Warsaw, US
• Joseph G. Wyss · Fort Wayne, US
• Stephen A. Hazebrouck · Winona Lake, US
• Aaron J. Matyas · Fort Wayne, US

Key dates

• Filing date: Mar 15, 2013
• Grant date: Jan 3, 2017
• Expiry date: Mar 15, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/30738
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A modular knee prosthesis system includes a femoral component having a stem, a plurality of different sizes of sleeves mountable on the stem, and a plurality of different sizes of augments mountable on the femoral component. The system is modular, and provides the surgeon with the option of distally offsetting the joint line by selecting the size of sleeve that will provide the desired joint line. The different sizes of sleeves have different axial lengths but share a common geometry along a substantial part of their lengths so that the same bone cavity will accept multiple sizes of sleeves.