Patent ID: 9655745
Date: 2017-05-23
CPC Classifications: A61F,B23K,B29C,B29K,C23C,Y10T

Claim:
1. A method of producing an interbody spinal implant, comprising applying a subtractive process to at least one surface of a metal blank to form a roughened surface topography on the at least one surface, the surface topography comprising micro features having a maximum peak to valley height within the micrometer size scale and nano features having a maximum peak to valley height within the nanometer size scale; and subsequently, machining the blank to form an interbody spinal implant including a body having a shape for implantation into an intervertebral disc space through the posterior, the anterior, a lateral side, or the foramen of the spine, having surface structures that preserve vertebral endplate bone, that provide stability of the implant in the intervertebral disc space, and that resist expulsion of the implant from the intervertebral disc space, and having at least one vertical aperture for graft containment.