Expandable spinal fusion device and methods of promoting spinal fusion
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United States of America Patent
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Apr 2, 2013
Grant Date -
Jul 6, 2006
app pub date -
Jan 17, 2006
filing date -
Sep 23, 2002
priority date (Note) -
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Abstract
An intervertebral disc space implant includes spaced-apart bone engagement portions that define an intermediate chamber that holds bone growth inducing material into contact with adjacent vertebral bodies. The implant is expandable to establish and maintain desired intervertebral spacing during fusion. The implant includes a first member and a second member arranged to move relative to each other by action of an expansion member, the first member being engageable with the vertebral body below the disc space.
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