Frusto-conical spinal implant
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United States of America Patent
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May 17, 2011
Grant Date -
Aug 26, 2010
app pub date -
Apr 3, 2010
filing date -
Jun 7, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention is directed to a variety of interbody spinal fusion implants having at least a partially frusto-conical configuration. The spinal fusion implants of the present invention may be relatively solid or hollow and may have surface roughenings to promote bone ingrowth and stability. The spinal fusion implants of the present invention may have wells extending into the material of the implant from the surface for the purpose of holding fusion promoting materials and to provide for areas of bone ingrowth fixation. A variety of surface irregularities may be employed to increase implant stability and implant surface area, and/or for the purpose of advancing the spinal fusion implant into the fusion site.
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