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. 06, 2011
Filed:
Sep. 25, 2009
Joseph Aferzon, Avon, CT (US);
Joshua Aferzon, Avon, CT (US);
Joseph Aferzon, Avon, CT (US);
Joshua Aferzon, Avon, CT (US);
Alphatec Spine, Inc., Carlsbad, CA (US);
Abstract
A fixation device including a housing, a shaft and a plurality of blades preloaded onto the shaft. The housing includes a leading deep surface, a trailing outer surface, weight bearing sides, and top and bottom surfaces. The shaft runs from the leading deep surface to the trailing outer surface of the housing. The plurality of blades includes at least one first blade having at least one cutting extension in a first orientation about the axis of the shaft and at least one second blade having at least one cutting extension in a second orientation about the axis of the shaft that is opposite to the first orientation. Each cutting extension of the blades has a sharp leading edge, wherein upon clockwise or counterclockwise rotation of each blade of the plurality of blades about the axis of the shaft in a direction in which the at least one cutting extension of each blade is oriented, the at least one cutting extension of each blade will break an endplate of a vertebra, hook into the vertebra and rigidly secure the vertebra to the device to prevent separation of the vertebra from the device during spinal motion.