Expandable intervertebral spacers
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United States of America Patent
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Dec 21, 2004
Grant Date -
Oct 17, 2002
app pub date -
May 23, 2002
filing date -
Oct 29, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Laterally expanding vertebral spacer devices are provided for repairing damaged vertebral discs. The vertebral spacer devices maintain the height of a distracted vertebral disc space while providing stability to the spine. In one form of the invention, a vertebral spacer device is provided with a first arm movably coupled to a second arm. The first and second arms are laterally expandable from a first width for insertion into the disc space to a second width after insertion into the disc space. The first and second arms also define a cavity therebetween for placement of bone growth material.
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