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:
Oct. 27, 1998
Filed:
Nov. 22, 1996
Glenn R Buttermann, Mahtomedi, MN (US);
Other;
Abstract
An intervertebral prosthetic device for replacement of an intervertebral disc includes a first fixation member for fixation within a first vertebral body and a second fixation member for fixation within a second vertebral body adjacent the first vertebral body. The present prosthetic device also includes a compressible member for positioning between the first and second fixation members. The compressible member has an outer periphery less than or substantially equal to a diameter of a nucleus pulposus of the intervertebral disc. The compressible member thus essentially fits within the annulus fibrosis of the intervertebral disc. The compressible member also has at least one spring that can be pre-loaded to place the annulus fibrosis under tension and to reproduce the mechanical properties of a natural disc.