The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2011
Filed:
Mar. 05, 2004
Robert M. Fencl, Cordova, TN (US);
J. David Blaha, Ann Arbor, MI (US);
Vernon R. Hartdegen, Collierville, TN (US);
William J. Maloney, Clayton, MO (US);
Stephen E. White, Cordova, TN (US);
Robert M. Fencl, Cordova, TN (US);
J. David Blaha, Ann Arbor, MI (US);
Vernon R. Hartdegen, Collierville, TN (US);
William J. Maloney, Clayton, MO (US);
Stephen E. White, Cordova, TN (US);
Wright Medical Technology, Inc., Arlington, TN (US);
Abstract
A femoral caliper having one or more anatomical referencing members for placement against portions of the femur, such as the anterior cortex and posterior portion of the femoral condyles, to measure the femur for sizing of the femoral component. A reference mark positioning guide of the femoral caliper is connected to the anatomical referencing member and is capable of guiding placement of a reference mark on the femur that facilitates positioning of the femoral component. The femoral caliper includes an adjustment mechanism capable of displacing the reference mark positioning guide relative to the anatomical referencing member. This allows adjustment of the position of the reference mark (and hence the femoral component) on the femur to account for the up or down sizing of the femoral component. Preferably, the adjustment mechanism adjusts the reference mark positioning guide in the anterior-posterior direction to allow balancing of the tightness or laxity of the selected component.