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:
Apr. 15, 2014
Filed:
Mar. 05, 2009
Beat Lechmann, Grenchen, CH;
Paul W. Pavlov, Nijmegen, NL;
Silas Zurschmiede, Grenchen, CH;
DePuy Synthes Products, LLC, Raynham, MA (US);
Abstract
A facet interference screw () for insertion between the facet joints of adjacent superior and inferior vertebrae includes an externally threaded shaft portion and a head. The facet interference screw is preferably split into first () and second () components, each including an outer, semicircular externally threaded surface () so that when coupled together the semicircular externally threaded surfaces form the externally threaded shaft portion. The inner surfaces () of the first and second components may include curved contacting surfaces so that when inserted, the first component is movable with respect to the second component. Alternatively, the screw may include a damping component (') between the inner surfaces of the first and second components to facilitate damping of the first and second components with respect to one another. The damping component preferably also facilitates articulated motion of the first and second components.