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:
Nov. 23, 2010
Filed:
Apr. 12, 2007
James F. Zucherman, San Francisco, CA (US);
Ken Y. Hsu, San Francisco, CA (US);
Charles J. Winslow, Walnut Creek, CA (US);
Scott A. Yerby, Montara, CA (US);
John J. Flynn, West Milford, NJ (US);
Steven T. Mitchell, Pleasant Hill, CA (US);
John A. Markwart, Castro Valley, CA (US);
James F. Zucherman, San Francisco, CA (US);
Ken Y. Hsu, San Francisco, CA (US);
Charles J. Winslow, Walnut Creek, CA (US);
Scott A. Yerby, Montara, CA (US);
John J. Flynn, West Milford, NJ (US);
Steven T. Mitchell, Pleasant Hill, CA (US);
John A. Markwart, Castro Valley, CA (US);
Warsaw Orthopedic, Inc., Warsaw, IN (US);
Abstract
A system and method for replacing degenerated spinal disks in accordance with the present invention can substitute for interbody fusion techniques by replacing degenerated spinal disks with artificial spinal disks. In one embodiment, the system can comprise one or more artificial spinal disks, each comprising an upper and lower housing, a first spacer and a second spacer partially enclosed by a cavity formed by the housings, and a shaft with a spring positioned between the first spacer and the second spacer such that the spacers are urged apart.