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:
Aug. 07, 2007
Filed:
Feb. 10, 2004
Matthew M. Morrison, Cordova, TN (US);
B. Thomas Barker, Memphis, TN (US);
John Stewart Young, Memphis, TN (US);
Jeffrey W. Beale, Arlington, TN (US);
Chris E. Johnson, Germantown, TN (US);
Matthew M. Morrison, Cordova, TN (US);
B. Thomas Barker, Memphis, TN (US);
John Stewart Young, Memphis, TN (US);
Jeffrey W. Beale, Arlington, TN (US);
Chris E. Johnson, Germantown, TN (US);
SDGI Holdings, Inc., Wilmington, DE (US);
Abstract
A multi-axial bone fixation implant includes an elongated member, one or more bone anchor assemblies, and stabilizer members fitted within the elongated member. A bolt having a bone-threaded end and a machine-threaded end and an enlarged medial portion is also provided. The bolt is anchored into a bone, and its machine-threaded end passes through the elongated member and the stabilizer, and is engaged by a coupled washer and nut. The washer includes an oblong aperture, and the nut includes a projecting sleeve. The sleeve is inserted into the washer and expanded, and the washer retains the sleeve without impairing relative rotatability or translatability of the nut and washer. When locked by the nut and washer, the enlarged portion of the bolt is forced against the stabilizer, which locks against the elongated member. The elongated member can be fixed with respect to the anchor at an infinite number of multi-axial angles.