INTERVERTEBRAL PROSTHESES WITH COMPLIANT FILLER MATERIAL FOR SUPPORTING ADJACENT VERTEBRAL BODIES AND METHOD
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Apr 3, 2009
filing date -
Apr 4, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An intervertebral prosthesis and method includes an artificial interbody disc for engaging faces of adjacent natural vertebral bodies when a natural disc is replaced. Channels in the interbody disc can provide flexible characteristics to accommodate loads on the subject's spinal column. A bio-compatible filler material having a flexural stiffness of less than 12 GPa can encourage bone growth in the channels. The filler material may be inserted during an operation or pre-inserted in the disc channels during manufacturing of the disc.
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