Osteoconductive integrated spinal cage and method of making same
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United States of America Patent
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Issued Date -
Oct 13, 2005
app pub date -
Nov 18, 2004
filing date -
Nov 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The spinal cage comprises a structural component having sufficient strength to withstand the compressive loading between vertebral bodies. The structural component is integrated with an osteoconductive component to facilitate bone growth between the vertebral bodies. The structural component may comprise any of PEEK, PEKK, or other structural material. The osteoconductive component may comprise any of allograft, natural bone, tricalcium phosphate, hydroxyapatite or a blend of calcium carbonate, calcium lactate and other calcium salts. A method for making the spinal cage involves molding polymers around an osteoconductive component, heat staking, and may further include ultrasonically welding, snap fit or mechanically assembling and/or adhesively bonding components.
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