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. 11, 2003
Filed:
Aug. 23, 2002
Simon Casutt, Gossau, CH;
Sulzer Orthopedics Ltd., Baar, CH;
Abstract
The invention relates to an artificial intervertebral disc for implanting between two vertebral bodies (W) comprising two end plates ( ) which bound a hollow space ( ), which is filled with an elastically and/or plastically deformable nucleus ( ), at two opposite sides, with the hollow space ( ) being enclosed by a tubular fiber ring ( ) such that the end plates ( ), together with the fiber ring ( ), bound the hollow space ( ) and the end plates ( ) are in tensile connection with the fiber ring ( ). The fiber ring ( ) is designed as elastically extensible in the radial and axial directions, with the fiber ring ( ) having a larger modulus of elasticity than the nucleus ( ) and the nucleus ( ) and the fiber ring ( ) interacting such that the elastic properties of the artificial intervertebral disc show a non-linear behavior with increasing deformation at least with respect to a compression force (F).