anchor device 100 with the actuator switch 105 in its corresponding most distal forward position fig1 shows a top view of the actuator switch 105 of the anchor device 100 in a fully forward distal position corresponding to full extension of the extension wires 106 in an outward radial direction as shown in fig1 also in fig1 the axial markings 115 can be more clearly seen with numerical designations which may correspond to the diameter or radius of the extension wires 106 at the distal end 127 of the anchor device 100 in fig1 the anchor device 100 is being inserted into an outer hollow shaft 124 of a cannula 125 the distal end 141 of which is disposed adjacent a sentinel lymph node 126 the inner conductor 102 of the anchor device 100 is electrically coupled to a conductor 116 which is in turn electrically coupled to the rf generator 107 a ground pad 122 is in electrical contact with the patient 121 and electrically coupled to the rf generator 107 with a second conductor 117 fig1 shows the elongate shaft 111 of the anchor device 100 disposed within an inner lumen 142 of the hollow outer shaft 124 of the cannula 125 the.