DEVICES AND TECHNIQUES FOR CUTTING AND COAGULATING TISSUE
摘要
Various forms are directed to systems and methods for driving an end effector coupled to an ultrasonic drive system of a surgical instrument. A generator may generate at least one electrical signal. The at least one electrical signal may be monitored against a first set of logic conditions. When an ultrasonic impedance of the surgical instrument exceeds a threshold impedance, a resonant frequency of the at least one electrical signal may be stored as a baseline frequency. A first response of the generator may be triggered upon the occurrence of either the first set of logic conditions being met or the resonant frequency of the at least one electrical signal differing from the baseline frequency by a baseline deviation threshold.
申请公布号
CA2869890(A1)
申请公布日期
2013.10.17
申请号
CA20132869890
申请日期
2013.04.05
申请人
ETHICON ENDO-SURGERY, INC.
发明人
MESSERLY, JEFFREY D.;BERTKE, BRIAN D.;TELLIO, KARALYN R.;WIENER, EITAN T.;YATES, DAVID C.;ALDRIDGE, JEFFREY L.;STULEN, FOSTER B.;GIORDANO, JAMES R.