James A. Gilbert,Steven C. Rupp,William N. Gregg,Kristin D. Johnson,Dirk Johnson
申请号：
US15484895
公开号：
US20170296255A1
申请日:
2017.04.11
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A controller for an electrosurgical device and related methods and devices are disclosed. The controller has a processing component to: (a) derive a power factor of power applied to the electrosurgical device； and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the electrosurgical device. IF (PF≈0) and ((Vrms/Irms)≧T), THEN the circuit status is “open”. IF (PF≈0) and ((Vrms/Irms)<；T), THEN the circuit status is “short”. PF is the power factor. Vrms is the root mean square of a voltage associated with the power applied to the at electrosurgical device. Irms is the root mean square of a current associated with the power applied to the electrosurgical device. T is a threshold value.
