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:
Dec. 01, 2015
Filed:
Dec. 17, 2010
Applicants:
Ole Prien, Kiel, DE;
Stefan Voelzow, Moenkeberg, DE;
Inventors:
Ole Prien, Kiel, DE;
Stefan Voelzow, Moenkeberg, DE;
Assignee:
Stryker Trauma GmbH, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 17/56 (2006.01); A61B 17/72 (2006.01); A61B 17/86 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
A61B 17/725 (2013.01); A61B 17/7216 (2013.01); A61B 17/863 (2013.01); A61B 17/866 (2013.01); A61B 17/72 (2013.01); A61B 2017/00526 (2013.01);
Abstract
A bone fastener for use in orthopaedic surgery for anchoring an intramedullary nail to bone has a shaft with a front region and a rear region adjacent to the front region. The rear region has one or more explantation grooves helically arranged for facilitating the explantation of the bone fastener. Two axially spaced apart grooves or groove sections are separated by a flat shaft portion defining an outside diameter of the rear region, wherein the rear region has a core diameter greater than a core diameter of the front region.