Distal femoral knee prostheses

US9592127B2 · kind B2 · utility

Assignee

• Zimmer, Inc. · US

Inventors

• Brian D. Earl · South Bend, US
• Abraham P. Habegger · Warsaw, US
• Aaron Hoffman · Mazor, IL
• Kim C. Bertin · Bountiful, US
• Lawrence Dorr · Tustin, US
• Robert E. Booth · Austin, US
• Aaron Rosenberg · Deerfield, US
• Sergio Romagnoli · Castenaso, IT

Key dates

• Filing date: Dec 14, 2006
• Grant date: Mar 14, 2017
• Expiry date: Sep 1, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/30667
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A set of distal femoral knee prostheses which are designed to be more narrow in medial/lateral dimensions with increasing anterior/posterior size than existing prostheses to more closely correspond to the physical anatomy of female patients. The prostheses are designed to have a substantially trapezoidal shape or profile when viewed distally which features a more pronounced narrowing of the medial/lateral dimensions beginning at the posterior end of the prostheses and progressing anteriorly to the anterior end of the prostheses. Additionally, the prostheses each include a reduced profile patellar sulcus and reduced profile anterior condyles to more closely conform to the anatomy of a resected femur, and also include sulcus tracking optimized to conform to female anatomy.