Patent ID: 7192447
Filing Date: 2007-03-20
Classification: A61F

Abstract:
1. An intervertebral implant comprising a body having a convexly curved anterior side substantially opposing a concavely curved posterior side spaced apart by first and second convexly curved lateral sides to define a central bore, the body further having top and bottom surfaces, each of the top and bottom surfaces are configured to contact an endplate of an adjacent vertebrae so that an outer periphery of the top and bottom surfaces substantially conforms in size and shape with the end plates of adjacent vertebra, and wherein each of the top and bottom surfaces have a plurality of gripping structures for engaging the end plates of the adjacent vertebra and have areas extending from the outer periphery to the central bore that are substantially smooth for receiving a surgical instrument; wherein the central bore has a substantially concavely curved anterior surface, a substantially convexly curved posterior surface, and first and second concavely curved lateral surfaces; and wherein at least one of the top and bottom surface is continuous around its respective outer periphery.