CPC A61B 18/042 (2013.01) [A61B 90/08 (2016.02); A61B 18/148 (2013.01); A61B 2017/320008 (2013.01); A61B 2018/00565 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00744 (2013.01); A61B 2090/064 (2016.02); A61B 2090/0807 (2016.02); A61B 2218/007 (2013.01)] | 20 Claims |
1. A probe for ablating tissue, comprising:
an electrosurgical working end comprising an outer surface;
a first polarity interior electrode located inside the electrosurgical working end and separated from the outer surface by a space that is sufficiently fluid-tight to prevent liquid flow therethrough but to permit propagation of plasma therethrough in use for emitting a first plasma from the electrosurgical working end;
a first polarity exposed electrode, the first polarity exposed electrode situated in the electrosurgical working end to be in liquid flow communication with liquid around the outer surface of the electrosurgical working end in use for emitting a second plasma from the electrosurgical working end;
a second polarity electrode carried by the probe and useable in conjunction with at least one of the first polarity interior electrode and the first polarity exposed electrode to enable the probe to function as a bipolar device.
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