Methods for forming and retaining intervertebral disc implants
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United States of America Patent
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Mar 17, 2009
Grant Date -
Mar 23, 2006
app pub date -
Sep 23, 2004
filing date -
Aug 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Nucleus pulposus implants that are resistant to migration in and/or expulsion from an intervertebral disc space are provided. In one form of the invention, an implant includes a load bearing elastic body surrounded in the disc space by an anchoring, preferably resorbable, outer shell. In certain forms of the invention, the elastic body is surrounded by a supporting member, such as a band or jacket, and the supporting member is surrounded by the outer shell. Kits for forming such implants are also provided.
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