EXPANDABLE WET ELECTRODE

摘要

The invention relates to a device for delivering radio-frequence (RF) energy (1), for example during tissue ablation procedures, comprising a delivery catheter (5) with a distal end (4) and a proximal end (3) and an electrode deployment device positioned at least partially in the delivery catheter (5) including a plurality of retractable electrodes (8, 9), each electrode having a non-deployed state when positioned within the delivery catheter and a distented deployed state when advanced from the distal end of the delivery catheter defining an ablation volume between the deployed electrodes, said device further comprises wetting means for wetting the proximity of the distal end of the electrode and adjacent tissue with a non-toxic (RF) conductive solution.