Patent ID: 7942872
Filing Date: 2011-05-17
Classification: A61B

Abstract:
1. A system comprising: at least two target electrodes and at least one return electrode; at least two RF power sources in electrical communication with said electrodes and operative to generate RF energy waveforms to said at least two target electrodes, one of said at least two target electrodes cooperating with said at least one return electrode to define a monopolar RF energy delivery channel and another of said at least two target electrodes cooperating with said at least one return electrode to define another monopolar RF energy delivery channel, said at least one return electrode being common to both channels, wherein said at least two target electrodes being operable in a bipolar mode of RF energy delivery; and a waveform manipulator operable to control and manipulate the waveforms to said at least two target electrodes so as to selectively provide pure monopolar, pure bipolar and a blend of monopolar and bipolar modes of RF energy delivery, wherein said waveforms are sinusoidal with respective frequencies separated by a beat frequency, and said waveform manipulator is operative to modulate said waveforms according to a phase of the beat frequency.