Liquid infusion apparatus for radiofrequency tissue ablation

摘要

An apparatus for delivering electrical energy includes a tubular member having a pair of opposing members extendable from the distal end of the tubular member, the opposing members being directable towards one another for engaging tissue between inner surfaces of the opposing members, the opposing members having one or more electrodes for delivering electrical energy to tissue engaged between the opposing members. One or more hollow needles extend from an inner surface of at least one opposing member, the hollow needles configured to deliver conductive fluid from a lumen into tissue penetrated by the needles.