Patent ID: 8545492

Claim:
A device for radio frequency ablation (RFA) of diseased tissue, comprising: a mesh or plate with a grid of holes for holding electrodes; a plurality of electrodes with adaptable active tip length; means for visualizing and probing insertion depth of each of said electrodes in said diseased tissue; a switch box, connectable to said plurality of electrodes and adapted to distribute current between said plurality of electrodes during a radio frequency ablation (RFA) process; a control unit for controlling said switch box; and means for monitoring said radio frequency ablation (RFA) process; wherein a plurality of said holes of said grid are occupied with electrodes arranged in rows and said control unit is adapted to determine: groups of electrodes; an electric mode for activation of each group of electrodes; and a polarity for electrodes within each group of electrodes, wherein said control unit is adapted to activate a group of electrodes during successive cycles alternating in centrifugal mode with rows having electrodes of equal polarity and centripetal mode with rows having electrodes of alternating polarity; an activation mode for the groups; a time interval and order for activation of the groups; a power output and current strength; a duration of the radio frequency ablation (RFA) process, whereby each electrode is activated an amount of times such that a substantially equal radio frequency power is applied per volume diseased tissue.