Patent ID: 8262737

Claim:
An interbody spinal implant including a body, the body comprising: a top surface; a bottom surface; opposing lateral sides; and opposing anterior and posterior portions; the top surface, bottom surface, opposing lateral sides, and opposing anterior and posterior portions defining a substantially hollow center and a single vertical aperture, the single vertical aperture (a) extending from the top surface to the bottom surface, (b) having a size and shape predetermined to maximize the surface area of the top surface and the bottom surface available proximate the anterior and posterior portions while maximizing both radiographic visualization and access to the substantially hollow center, (c) defining a transverse rim with a varying width or thickness, and (d) having a maximum width at its center, between the opposing lateral sides, of about 55% or 64% of the distance between the opposing lateral sides and tapering inwardly from the center to each of its ends, one end proximate the anterior portion and the other end proximate the posterior portion.