Patent ID: 6551319
Filing Date: 2003-04-22
Classification: A61B,A61F,Y10S

Abstract:
An apparatus for implanting into a bone in a patient's spine or pelvis, said apparatus, when implanted, being resistant to toggling in the bone and to being pulled from the bone, said apparatus comprising:a platform for engaging a bone in a patient's spine or pelvis, said platform having a first surface that is solid and that extends generally transverse to a longitudinal axis of said apparatus, said platform including structure for connection to a spinal fixation implant; and at least one helical spike for embedding into the bone upon rotation of said platform, said at least one helical spike projecting tangentially from said first surface of said platform and extending around said longitudinal axis, said at least one helical spike having a tip portion at a distal end which penetrates into the bone as said platform is rotated; said at least one helical spike, when implanted, having a conical shape that increases in diameter as said at least one helical spike extends away from said platform.