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Spinal implant surface configuration

  • US 20010047208A1
  • Filed: 08/03/2001
  • Published: 11/29/2001
  • Est. Priority Date: 12/08/1999
  • Status: Abandoned Application
First Claim
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1. An interbody spinal implant for insertion between adjacent vertebral bodies of a human spine, said implant comprising:

  • a leading end for introduction of said spinal implant into the spine, an opposite trailing end, and spaced apart sides therebetween;

    opposite upper and lower surfaces between said leading and trailing ends and said spaced apart sides, said upper surface adapted for placement in engagement with the bone of one of the vertebral bodies and said opposite lower surface adapted for placement in engagement with the bone of the other of the vertebral bodies when said implant is placed between the adjacent vertebral bodies; and

    a plurality of bone engaging structures formed on said upper and lower surfaces, at least one of said bone engaging structures comprising surface projections having at least one forward facing facet directed at least in part toward said leading end and at least one rearward facet directed at least in part toward said trailing end, each of said forward facet and rearward facet having a length and a slope, the length of said forward facet being longer than said rearward facet, the slope of said rearward facet being steeper than the slope of said forward facet, said surface projections having opposed side facets directed generally toward said sides of said implant, said side facets located between said forward facet and said rearward facet of said surface projections, said side facets converging toward each other in a direction away from the base of said projections.

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