Ward, Arlen K.,Collins, George J.,Moore, Cameron A.
申请号：
AU2008221576
公开号：
AU2008221576B2
申请日:
2008.09.19
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
#$%^&*AU2008221576B220131128.pdf#####REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS ABSTRACT An electrosurgical generator (20) is disclosed. The generator includes a radio frequency output stage (28) configured to generate a radio frequency waveform and a ej sensor circuit (22) configured to measure a property of the radio frequency waveform during a predetermined sampling period to determine whether an arc event has occurred. The generator also includes a controller (24) configured to determine a total charge and/or total energy deposited by the radio frequency waveform during the predetermined sampling period associated with the arc event. The controller (24) is further configured to 1o adjust the output of the electrosurgical generator (20) based on at least one parameter to limit arcing.3/3 ME START OS r100 SELECT DURATION OF SAMPLING PERIOD 102 MEASURE VOLTAGE ACROSS ----------------- SE RIES RESIST ANCE DURING SAMPLING PERIOD 104 TEMPORALLY INTEGRATE SERIES RESIST ANCE VWITH DURATION OF SAMPLING PE RIOD TO OBTAIN TOTAL CHARGE 107 106 TEMPORALLY INTEGRATE MEASURE VOLTAGE ACROSS SHUNT POWER DE LIVE RED DURING CAPACITANCE DURING SAMPLING PE RIOD SAMPLING PE RIOD 108 T EMPOR ALLY INT EGR AT E PRODUCT OF SHUNT CAPACITANCE VOLTAGE AND TOTAL CHARGE TO OBTAIN TOTAL ENERGY 110 DETERMINE ENERGY PER ARC : --------------- + EVENT AS A FUNCTION OF TOTAL CHARGE AND TOTAL ENERGY ADJUST RF OUTPUT STAGE BASED ON ENERGY PER ARC END FIG. 3
