Patent ID: 8034051

Claim:
An electrosurgical device for creating a lesion on tissue, the electrosurgical device comprising: a head having a distal tip with a distal facing surface; a first elongated pole electrode having a length and a width on the distal facing surface of the distal tip of the head for the delivery of RF energy to tissue; a second elongated pole electrode having a length and a width on the distal facing surface of the distal tip of the head parallel to and spaced away from the first electrode a first distance along the lengths of the first and second electrodes, the second pole electrode for the delivery of RF energy to tissue, the first and second pole electrodes being electrically connected and of opposite polarity; and at least one sensor electrode having a length and a width on the distal facing surface of the distal tip of the head located between the first elongated electrode and the second elongated electrode, the sensor electrode being parallel to and spaced away from the first pole electrode a second distance along the lengths of the first and sensor electrodes, at least one of the first pole electrode and the second pole electrode being electrically connected to the sensor electrode, wherein when the sensor electrode and at least one of the first pole electrode and the second pole electrode are in contact with tissue, the sensor electrode enables a sensor to sense at least one parameter selected from the group of voltage, tissue impedance, electrical conduction, conduction time, conduction velocity, and signal phase angle.