DEVICES FOR TREATING LUNG TUMORS

An apparatus (150) for ablating a tumor in a lung including: an elongate shaft (149); an obturator (152) positioned at a distal region of the elongate shaft, a suction lumen (166) extending through the elongate shaft and exiting the shaft distal to the obturator, wherein the suction lumen is configured to remove air or fluid from the portion of the lung, an ablation catheter delivery lumen (153) extending through the elongate shaft and exiting the shaft distal to the obturator, and an ablation catheter (155, 154) comprising an RF electrode (156, 157).