Patent ID: 6283966
Filing Date: 2001-09-04
Classification: A61B,A61F

Abstract:
A method for preparing an implant site for implanting a spinal implant between adjacent vertebrae, the method comprising a step of:inserting a first end of a distraction plug into an intervertebral disc space between the adjacent vertebrae to position a second end of the distraction plug within the intervertebral disc space;attaching a first end of an obturator to the second end of the distraction plug, a second end of the obturator having an indicator arrangement at a predetermined distance from the first end of the obturator;positioning a distal end of a guide tube against an exterior surface of the vertebrae, the distal end of the guide tube positioned over the intervertebral disc space and in axial alignment with the distraction plug;aligning an adjustable affirmative stop of a proximal end of the guide tube relative to the indicator arrangement;removing the obturator and distraction plug;passing a first end of an instrument for preparing the implant site through the proximal end of the guide tube to the intervertebral disc space and advancing the first end of the instrument into the intervertebral disc space to prepare the implant site, advancement of the instrument being affirmatively stopped when a second end of the instrument contacts the proximal end of the guide tube.