Robert H. Wham,Andrey Y. Belous,Alexander M. Waskiewicz,Anthony D. Ricke
申请号：
US14534372
公开号：
US09901385B2
申请日:
2014.11.06
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The electrosurgical systems and methods of the present disclosure perform cable compensation using an electrosurgical generator that includes a plurality of sensors configured to sense voltage and current waveforms, a plurality of medium-band filters, a plurality of narrowband filters, and a signal processor. The plurality of medium-band filters and narrowband filters pass sensed voltage and current waveforms at a plurality of predetermined frequencies. The signal processor calculates medium-band RMS voltage and current values using the output from the plurality of medium-band filters, calculates narrowband phase and magnitude values using the output from the plurality of narrowband filters, calculates tissue impedance based on the medium-band RMS voltage and current values and the narrowband phase value, and generates a control signal to control the energy generated by the electrosurgical generator based on the calculated tissue impedance.
