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:
Jan. 19, 2016
Filed:
Apr. 17, 2013
Applicant:
Sam Hakki, St. Petersburg, FL (US);
Inventor:
Sam Hakki, St. Petersburg, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/38 (2006.01);
U.S. Cl.
CPC ...
A61F 2/389 (2013.01);
Abstract
A method and an apparatus are disclosed for identifying a proper tibia bone rotation relative to the femur bone for orientating a prosthesis in a knee replacement surgery. The proper tibia bone rotation is identified from an external rotation of the tibia in extension and an internal rotation of the tibia flexion. A point located midway between the external and internal rotations and a Whiteside line of the femur defines a center axis of tibia rotation plane. The rotational angles of the tibia may be measured by a mechanical goniometer or a computer navigation apparatus.