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. 07, 2003
Filed:
Apr. 23, 2001
Michael J. Schulzki, Boonton, NJ (US);
Carlos E. Collazo, Old Greenwich, CT (US);
Kenneth Trimmer, Waldwick, NJ (US);
Emilio Sanchez, Nutley, NJ (US);
Howmedica Osteonics Corp., Allendale, NJ (US);
Abstract
IM revision tools include a cutting guide having a coupling (preferably a male dovetail coupling), and a plurality of valgus adapters each having a mating (for example, female dovetail) coupling. According to a preferred embodiment of the invention, ten valgus adapters are provided: left and right with offsets of 0 mm, 2 mm, 4 mm, 6 mm, and 8 mm. All but the 0 mm valgus adapters are provided with dual rotational joints which allow a cutting guide to be positioned in both the anterior-posterior direction as well as in the medial-lateral direction. All but the 0 mm valgus adapters are provided with a reverse clock face below the female dovetail coupling. The methods include selecting the appropriate valgus adapter, attaching the valgus adapter to an IM stem and to the cutting guide, and inserting the IM stem into the femoral canal. If 0 mm offset adapter is not chosen, the cutting guide can be orbited 360° to position the cutting guide correctly. When the cutting guide is in position the degree of rotation can be determined by reading the reverse clock face on the valgus adapter. The reverse clock face reading can then be used to adjust the offset of the implant by setting the implant offset to the same setting.