Patent ID: 6572618
Filing Date: 2003-06-03
Classification: A61B

Abstract:
A connection assembly between a spinal implant rod and a vertebral anchor, the assembly comprising:a bolt, said bolt having an aperture for receiving a portion of the spinal implant rod near one end of the bolt; a clevis, said clevis defining a bore to hold a portion of the vertebral anchor, said clevis having inside and outside overlapping ears, said ears having substantially aligned channels therein, said bolt positioned within the substantially aligned channels and rotatably engaged to at least one of the ears; a rod interface washer, said rod interface washer positioned over a portion of the bolt, between the aperture of said bolt and the inside ear of said clevis, said rod interface washer being movable in part between the aperture of said bolt and said clevis, said rod interface washer being fixed against rotation relative to said bolt; and a compression member, said compression member forceably engaged to said bolt to urge the rod toward the vertebral anchor; wherein said bolt is rotatably engaged to the outside ear of said clevis with mating male and female threads.