Patent ID: 7655004

Claim:
An ablation device, comprising: an elongate flexible member having a proximal end and a distal end and comprising: a first working channel formed within the flexible member; a first diagnostic probe having a proximal end and a distal end, the first diagnostic probe located within the first working channel and extending through the distal end of the flexible member; and a first electrode connected to the distal end of the first diagnostic probe; wherein the first electrode is adapted to be endoscopically located in a tissue treatment region; and wherein the first electrode is adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located proximate to the first electrode; a second working channel formed within the flexible member; a second diagnostic probe having a proximal end and a distal end, the second diagnostic probe located within the second working channel and extending through the distal end of the flexible member; and a second electrode connected to the distal end of the second diagnostic probe; wherein the second electrode is adapted to be endoscopically located in a tissue treatment region; wherein the second electrode is adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located between the first and second electrodes; and wherein the first and second electrodes are rotatable about a central axis defined through each of the first and second diagnostic probes, wherein a distance between the first and second electrodes is adjustable by rotating either one or both of the first and second diagnostic probes.