| CPC A61F 2/30771 (2013.01) [A61F 2/442 (2013.01); A61F 2/447 (2013.01); A61F 2/4611 (2013.01); A61F 2002/30593 (2013.01); A61F 2002/30784 (2013.01); A61F 2002/30891 (2013.01); A61F 2310/00023 (2013.01)] | 7 Claims |
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1. A surgical implant having a unique surface pattern comprising:
an elongated intervertebral spacer body having a distal end, a proximal end, an upper wall comprising an upper surface, a lower wall comprising a lower surface, opposing side walls, and an internal cavity configured to hold bone growth material,
said upper wall, said lower wall, and said opposing side walls each comprising an opening formed therethrough, said openings each sized and shaped to expose the internal cavity,
said distal end comprising a plurality of angled surfaces tapering to a flat, distal-most end surface,
said proximal end comprising a plurality of angled surfaces tapering to a flat, proximal-most end surface, the flat proximal-most end surface comprising an opening forming a recessed insertion tool cavity configured to receive and threadably engage with a portion of an insertion tool, and
said upper surface or said lower surface having a surface scaffold defined by a plurality of surface projections arranged to define a plurality of pores therebetween, the surface scaffold including two distinct scaffold layers, one positioned adjacent to the other, comprising an upper layer and a lower layer,
wherein some of said surface projections comprise irregularly shaped linear segments having at least one irregular flat surface along one or more sides thereof, an irregular cross section, appearing crystalline, and arranged as an irregular lattice structure with some of the linear segments arranged to intersect other linear segments at random points while some of the linear segments do not intersect other linear segments, wherein spaces between the intersections define some of the pores, the pores each having a unique irregular shape with respect to adjacent pores,
wherein some of said surface projections comprise irregularly shaped linear segments having a plurality of flat surfaces separated by a curvature or twist extending along a longitudinal axis of the respective linear segment, and
wherein some of said surface projections comprise a single linear segment which branches off into one or more branches, said one or more branches further branching off into sub-branches, some of said sub-branches intersecting with other linear segments in the surface scaffold.
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