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:
Jul. 31, 2012
Filed:
Nov. 15, 2010
Neil Duggal, London, CA;
Daniel R. Baker, Seattle, WA (US);
Robert Conta, Mercer Island, WA (US);
Carly A. Thaler, Seattle, WA (US);
David T. Stinson, Woodinville, WA (US);
Neil Duggal, London, CA;
Daniel R. Baker, Seattle, WA (US);
Robert Conta, Mercer Island, WA (US);
Carly A. Thaler, Seattle, WA (US);
David T. Stinson, Woodinville, WA (US);
Synergy Disc Replacement, Inc., London, Ontario, CA;
Abstract
An artificial disc prosthesis is provided. The prosthesis enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate. The prosthesis may have a central keel on one end plate and an offset pair of keels on a second end plate. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.