Expandable spinal interbody and intravertebral body devices
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United States of America Patent
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Jan 27, 2015
Grant Date -
May 16, 2013
app pub date -
Sep 13, 2012
filing date -
Mar 31, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A device for insertion into a spinal (intervertebral or intravertebral) space is expandable from a first circumference to a second circumference through axial compression of segments of the device, particularly once the device has been properly situated within a vertebral space. The interbody/intravertebral body device is characterized by a plurality of axially stacked, individual segments that are provided on a central insertion and deployment rod. Each segment includes a central plate or body to which are pivotally attached plate or leaf structures. Pivoting of the structures provides a collapsed or unexpanded position of the first circumference and an open or expanded position of the second circumference.
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