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:
Jan. 04, 2000
Filed:
Sep. 29, 1997
George Bagby, Spokane, WA (US);
Spine-Tech, Inc., Minneapolis, MN (US);
Abstract
A bone joining implant has a rigid, implantable base body having an outer surface with at least one bone bed engaging portion configured for engaging between a pair of bone bodies to be joined. At least one spline is provided by the bone bed engaging portion, the spline being constructed and arranged to extend outwardly of the body and having an undercut portion. Upon implantation, the undercut portion of the implant is configured to engage with a bone bed provided in the bone bodies to be joined so as to provide instantaneous fixation there between. In one embodiment, the implant is a vertebral interbody fusing device. The base body is cylindrical and the spline is an undercut thread helically configured about the body. In another embodiment, the base body forms a bridging portion for encircling a vertebra to be removed, and splines in the form of strips of material extend outwardly of top-most and bottom-most portions of the body. Each spline has a undercut portion such that each spline mates in interlocking engagement with top-most and bottom-most neighboring vertebra having bone beds for receiving the splines there along. The mid-most vertebra is then removed (corpectomy), after which an enforcing brace is received therein.