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. 04, 2015
Filed:
Apr. 15, 2011
Nam T. Chao, Marlborough, MA (US);
Simon Siu, Quincy, MA (US);
Ronald Sacher, Boca Raton, FL (US);
Jerold P. Gurley, Bay Village, OH (US);
Randal Betz, Ocean City, NJ (US);
Peter O. Newton, San Diego, CA (US);
Nam T. Chao, Marlborough, MA (US);
Simon Siu, Quincy, MA (US);
Ronald Sacher, Boca Raton, FL (US);
Jerold P. Gurley, Bay Village, OH (US);
Randal Betz, Ocean City, NJ (US);
Peter O. Newton, San Diego, CA (US);
Medos International Sarl, Le Locle, CH;
Abstract
A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.