#$%^&*AU2010202944B220120628.pdf#####ABSTRACT A method and apparatus are disclosed for improving accuracy of placement of needles (102) during delivery of high frequency signals near a neural structure to form lesions (105). The apparatus includes a needle (102) that can deliver electrical current where a portion of the needle is electrically insulated (103) and a portion of the needle is exposed (104) and electrically active, thereby causing lesions (105). Radiopaque marking (901) is employed to differentiate the electrically insulated region (103) from the exposed region (104), allowing it to be better discerned in the body under fluoroscopy.
