Spinal implant
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United States of America Patent
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-
Mar 2, 1999
Grant Date -
N/A
app pub date -
May 20, 1997
filing date -
May 20, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A spinal implant including a hollow, generally tubular shell having an exterior lateral surface, a leading end, and a trailing end. The shell has a helical thread projecting from its exterior surface. The thread includes a plurality of pillars. Each pillar has a height of 100-4500 microns and a lateral dimension at the widest point of 100-4500 microns. The exterior surface has a plurality of holes therethrough to permit bone growth therethrough. The spinal implant may alternatively have a plurality of pillars projecting from its exterior surface in a regular, non-helical array.
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