Patent · US Active

Posterior cructiate-retaining orthopaedic knee prosthesis having controlled condylar curvature

US8192498B2 · kind B2 · utility

87Cited by

242References

30Claims

0Family size

Assignee

DePuy Products, Inc. · US

Inventors

Christel M. Wagner · Plymouth, US
Dimitri Sokolov · Palo Alto, US
Jordan S. Lee · Warsaw, US
John L. Williams · Fort Wayne, US
Said T. Gomaa · Fort Wayne, US
John M. Armacost · Warsaw, US

Key dates

Filing date	Jun 30, 2008
Grant date	Jun 5, 2012
Priority date	—
Expiry date	Aug 11, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00179
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An orthopaedic knee prosthesis includes a tibial bearing and a femoral component configured to articulate with the tibial bearing. The femoral component includes a condyle surface curved in the sagittal plane. The radius of curvature of the condyle surface decreases gradually between early-flexion and mid-flexion. Additionally, in some embodiments, the radius of curvature may be increased during mid-flexion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.