Methods and apparatus for anulus repair
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United States of America Patent
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Sep 2, 2014
Grant Date -
Sep 8, 2011
app pub date -
Nov 25, 2009
filing date -
Jun 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatus, systems and methods are used to repair, reconstruct and/or replace spinal features. A flexible longitudinal fixation component such a suture is passed around or through a portion of a spine, with the end sections of the component either being attached to one another or coupled to at least one bone implant. The bone implant may be a bone anchor or may form part of a pedicle screw assembly. The flexible longitudinal fixation component may pass through an anulus fibrosis (AF) and at least one intra-aperture component situated within a void or defect in an AF. The intra-aperture component may be composed of a porous mesh, allograft tissue or xenograft tissue. The intra-aperture component preferably includes one or more proximal-to-distal channels facilitating the intentional initial passage of nucleus pulposis (NP) tissue while preventing the extrusion of the NP long term.
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