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:
Jun. 23, 1998
Filed:
Aug. 23, 1996
Adam C Bastian, Westwood, NJ (US);
Marc G Weissman, Derby, CT (US);
Michael E Wolak, Leonia, NJ (US);
Osteonics Corp., Allendale, NJ (US);
Abstract
An instrument system and method are disclosed for preparing a distal femur for the implant of a femoral component of a knee prosthesis by the removal of natural bone in the intercondylar area of the distal femur to prepare a femoral notch, including a patella recess, subsequent to establishing distal, anterior and chamfer surfaces at the distal femur. The instrument system includes a femoral notch cutting guide for placement over the distal, anterior and chamfer surfaces of the prepared distal femur, and a femoral notch cutting punch. The femoral notch cutting punch is engaged with a first guideway in the femoral notch cutting guide to remove natural bone from the intercondylar area and establish the patella recess, and subsequently is engaged with a second guideway in the femoral notch cutting guide, transverse to the first guideway, to remove natural bone from the intercondylar area and complete the femoral notch.