Patent ID: 6746484
Filing Date: 2004-06-08
Classification: A61B,A61F

Abstract:
An implant for insertion between a first vertebra and a second vertebra, the first vertebra having a first cortical bone plate and the second vertebra having a second cortical bone plate, characterized in that the implant comprises:a first terminal part defining a first bearing surface to bear against the first cortical bone plate, a second bearing surface opposite said first surface to bear against the second cortical bone plate; a second terminal part opposite said first terminal part, said second terminal part defining a third bearing surface to bear against the first cortical bone plate and a fourth bearing surface opposite said third surface to bear against the second cortical bone plate; an elongated central part including a pair of longitudinal walls having a generally trapezoid configuration defining a cavity therebetween each of said walls projecting transversely from the first and second terminal parts and including a tapering edge adapted to penetrate the first and second cortical bone plates, and a projection extending transverse to said walls and positioned between said cavity and said first terminal part, said projection configured to correspondingly penetrate the first or second cortical bone plate when said first and third surfaces bear against the first cortical bone plate and said secondhand fourth surfaces bear against the second cortical bone plate.