Patent ID: 6520993
Filing Date: 2003-02-18
Classification: A61F

Abstract:
An implantable bone graft, comprising:a solid annular body having a superior surface, an inferior surface, an anterior end, and a posterior end; a substantially central opening extending between the superior and inferior surfaces; a plurality of discrete bone-engaging teeth protruding above at least a portion of the superior and inferior surfaces, the teeth each having a base integral with one of the superior and inferior surfaces; a first relief on the superior surface and oriented in a desired direction to form a first tooth-free band that is not cut into the superior surface of the body; a second relief on the inferior surface and oriented in the desired direction to form a second tooth-free band that is not cut into the inferior surface of the body, the second tooth-free band being aligned with and formed opposite to the first tooth-free band; and a tip formed at the posterior end of the body by converging portions of the superior and inferior surfaces.