Abstract: An ablation device and/or method of ablation may include placing one or more ablation electrodes in contact with a target tissue in a lumen. An electrical insulator may be positioned between the electrode and a lumen fluid and an electrical signal (for example a radio frequency signal) may be conveyed between the electrodes to heat and/or ablate the target tissue. Ablation may be bipolar and/or an in lumen dispersive electrode may be supplied for unipolar ablation. Ablation progress may be sensed and ablation may be adjusted to produce a desired level and/or geometry and/or distribution of ablation.

Abstract: An embodiment of system for intrabody treatment of a treatment location in a body of a treated patient is disclosed. The system may include deploying at least two transmission points of a multi point probe to a proximity with the treatment location in the body. A transmission pattern may be selected that defines, for each of the transmission points, a respective signal of a plurality of transmission signals. The transmission pattern may form at least one interaction between the respective signals. The interaction may form a hot spot at the treatment location. A plurality of transmission signals may be delivered from the transmission points.

Abstract: An ablation device and/or method of ablation may include placing one or more ablation electrodes in contact with a target tissue in a lumen. An electrical insulator may be positioned between the electrode and a lumen fluid and an electrical signal (for example a radio frequency signal) may be conveyed between the electrodes to heat and/or ablate the target tissue. Ablation may be bipolar and/or an in lumen dispersive electrode may be supplied for unipolar ablation. Ablation progress may be sensed and ablation may be adjusted to produce a desired level and/or geometry and/or distribution of ablation.

Abstract: An embodiment of system for intrabody treatment of a treatment location in a body of a treated patient is disclosed. The system may include deploying at least two transmission points of a multi point probe to a proximity with the treatment location in the body. A transmission pattern may be selected that defines, for each of the transmission points, a respective signal of a plurality of transmission signals. The transmission pattern may form at least one interaction between the respective signals. The interaction may form a hot spot at the treatment location. A plurality of transmission signals may be delivered from the transmission points.