#$%^&*AU2011202594B220120830.pdf#####APPARATUS AND METHOD FOR OPTIMAL TISSUE SEPARATION Abstract A system and method for optimizing tissue separation using modulated or duty 5 cycle controlled waveforms (40) on desiccated tissue, where the desiccated tissue has a high electrical impedance. In bipolar electrosurgical procedures, tissue separation is separated with the application of an electrical signal. When tissue does not completely separate and becomes desiccated, generator (30) may generate a duty cycle controlled waveform (40) with specified duty cycle (42) and frequency or modulated waveform (60). 10 Modulated waveform (60) is generated by adding or multiplying one or more waveforms (40) together. Modulated or duty cycle waveforms (40) create power pulses with higher voltages and a low RMS value. Power pulses drive power and create heat in the high impedance tissue. The creation of heat helps to mobilize water content adjacent to the desiccated tissue. The heating and mobilization of water induces motion into the tissue is and aids in the complete separation of tissue while keeping the RMS power low.1/4 30 ELECTROSURGICAL 10 GENERATOR 13 FIG. 1 42a2 b 24a- 24b 29 FIG. 2 30 34- 37- 38- 31 CONTROLLER POWER RF OUTPUT 35>； SUPPLY STAGE MICROPROCESSOR 39 36>； 9 MEMORYCRCUITRY FIG. 3
