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:
Sep. 09, 2014
Filed:
Apr. 18, 2011
Tara Ziolo, Morris Plains, NJ (US);
Rui Ferreira, Livingston, NJ (US);
Tara Ziolo, Morris Plains, NJ (US);
Rui Ferreira, Livingston, NJ (US);
EBI, LLC, Parsippany, NJ (US);
Abstract
A bone fixation apparatus may include a bone fixation plate having a fixation hole and a fastener shaft received in the fixation hole. The fastener shaft may include a first portion having an outer surface defining a first cam and a second bone-engaging portion. An annular member may be received in the fixation hole and may include an inner surface defining a second cam for cooperating with the first cam to selectively move the annular member in a radial direction between an unexpanded position permitting movement of the fastener shaft and annular member relative to the fixation hole and an expanded position restricting movement of the fastener shaft and annular member relative to the fixation hole. The annular member may be moved between the expanded position and the unexpanded position by rotation of the annular member relative to the fastener shaft following insertion of the fastener shaft into a bone.