Patent ID: 7427294

Claim:
An implant for insertion into a space between a superior vertebra and an inferior vertebra, the implant comprising: a main body, the main body comprising at least a superior surface and an inferior surface; a plurality of surface protrusions residing on at least one of the superior surface or the inferior surface; and a plurality of spaces residing on at least one of the superior surface or the inferior surface separating the plurality of surface protrusions, wherein the plurality of surface protrusions comprise: an anterior facing surface, a posterior facing surface, a plurality of laterally facing surfaces, and a substantially planer vertebral body engaging surface, such that the anterior facing surface and the posterior facing surface converge from the main body to the vertebral body engaging surface forming a trapezoidal cross section and the plurality of laterally facing surfaces converge from the main body to the vertebral body engaging surface forming a trapezoidal cross section; and each of the plurality of surface protrusions including at least one channel therein.