LESION LOCALIZER FOR NUCLEAR MEDICINE

摘要

A needle localizing assembly is disclosed for marking the location of a bone lesion for subsequent surgical removal. The disclosed localizing assembly includes a localizing needle (14) with a radiation source contained therein to assist the surgeon in manipulating the needle tip, under nuclear medicine visualization, to a marker site near the lesion. The localizing needle (14) is then anchored into the bone. In one embodiment, the assembly includes a starter bit (48) which is introduced through a guiding needle (40) to form a starter hole (56) in the bone into which the screw-tipped localizing needle (14) is screwed to anchor the device to the bone. A driver (16) with an interfitting coupling for transmitting torque to localizing needle (14) is used to screw localizing needle (14) into the bone. In a second embodiment, the localizing needle includes a pair of hooked tips (78, 79) which screw into the bone to anchor the localizing needle to the bone.