Middle expandable intervertebral disk implant
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United States of America Patent
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-
Dec 2, 1997
Issued Date -
N/A
app pub date -
Mar 15, 1996
filing date -
Feb 22, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Artificial disk implant and methods for implanting same, the implant, in one embodiment, having a member for adapting in size and shape to the anatomical space between vertebrae, and apparatus for expanding the member to conform to the space. In one preferred embodiment, there is provided an artificial intervertebral disk implant having a cylindrical body comprised of cylindrical subunits capable of expansion. In another preferred embodiment, rectangular subunits capable of expansion are provided. The implant can be used alone or in various combinations for the purpose of spinal fusion.
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