Patent ID: 7771420

Claim:
Apparatus for radio frequency ablation of tissue comprising a catheter having a pointed tip for piercing insertion into said tissue, comprising at least one pair of bipolar electrodes functioning in bipolar mode and connected to a source of bipolar energy, each bipolar electrode comprising supply channels adapted for the perfusion of saline solution around the electrodes, the catheter further comprising at least two end electrodes arranged towards opposed ends of the catheter, on either side of the pair of bipolar electrodes, said end electrodes connected to a source of monopolar energy and functioning in monopolar mode, and at least two independently controlled pumps for supplying saline solution to separate supply channels of each bipolar electrode, further comprising a temperature acquisition unit connected to thermocouples of the catheter, the apparatus further comprising an RF generator, whereby the independently controlled pumps, RF generator, and temperature acquisition unit are connected to a computing unit, such as a PC, for monitoring and controlling operations.