Patent ID: 6883520
Filing Date: 2005-04-26
Classification: A61B,A61F

Abstract:
1. A method of positioning an implant within an implantation site, said implantation site comprising a first region having a tight and/or changing curvature bordered by a second region or regions having minimal or constant curvature, said method comprising: placing a relatively flexible region of said implant within said first region; placing a relatively stiff or rigid region of said implant within said second region; wherein said implantation site is the interior of an intervertebral disc and said implant comprises a barrier for preventing the migration of materials from within the disc toward the periphery of the disc; affixing the barrier to tissue in or surrounding the intervertebral disc; and deploying the barrier between the nucleus pulposus and the annulus fibrosis of the intervertebral disc.