US2002198599A1PendingUtilityA1

System for repairing inter-vertebral discs

Priority: Apr 16, 1999Filed: Jul 30, 2002Published: Dec 26, 2002
Est. expiryApr 16, 2019(expired)· nominal 20-yr term from priority
Inventors:David Haldimann
A61F 2210/0085A61L 27/24A61F 2310/00377A61F 2/4611A61F 2002/4435A61L 2430/38A61L 27/227A61F 2/442A61F 2002/30583A61L 27/16A61F 2310/00365A61F 2002/30677
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Claims

Abstract

An intervertibral disc made up of an annulus fibrosus having at least one defect therein, a cross linked visco-elastic solid polymer in said defect and adhering to remaining annulus fibrosus and thereby closing said defect and a nucleus pulposus.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . An intervertebral disc assembly comprising a nucleus pulposus; an annulus fibrosus substantially surrounding a lateral edge of said nucleus pulposus, wherein said annulus fibrosus has a defect therein; and a cured bio-compatible, cross linked polymeric visco-elastic sealant in said defect in a form sufficient to at least impede exudation and extrusion of nucleus pulposus material through said defect.  
     
     
         2 . An intervertebral disc assembly as claimed in claim  20  wherein said sealant has been disposed in said defect in an uncured condition, and has been cured in situ.  
     
     
         3 . An intervertebral disc assembly as claimed in claim  20  wherein said sealant has been disposed in said defect in a cured condition.

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