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Image Number 11 for United States Patent #6582446.
Apparatus for injecting an immobilizing substance into a target site of a bone. The apparatus includes a cannula having a bore for transporting the immobilizing substance to the target site of the bone when a leading end of the cannula is positioned adjacent the target site of the bone. The bore has a diameter of at least about three millimeters. In addition, the apparatus includes a rotary cutter element removably attachable to the cannula for easing insertion of the cannula into position so the leading end of the cannula is positioned adjacent the target site of the bone and a connector attached to at least one of the cannula and the cutter element for releasably connecting the cutter element to the cannula during insertion of the cannula into position adjacent the target site of the bone. The apparatus also includes a handle attached to the cutter element for turning the cutter element to advance the leading end of the cannula into position adjacent the target site of the bone.
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