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:
Sep. 30, 2003
Filed:
Aug. 23, 2002
Sulzer Orthopedics Ltd., Baar, CH;
Abstract
The invention relates to an artificial intervertebral disc for implantation between two vertebral bodies (W) comprising two end plates ( ) and an elastically deformable disc ( ) pre-stressed between the end plates ( ) in the axial direction, with the disc ( ) lying within a tubular, elastically deformable, fibre ring ( ) and the end plates ( ) being in tensile communication with the fibre ring ( ). The disc ( ) has a contact surface ( ) which enlarges with a compression of the artificial intervertebral disc and which adjoins one of the end plates ( ) so that the elastic properties of the artificial intervertebral disc show a non-linear behaviour with increasing deformation at least with respect to a compression force (F).