| 摘要 |
<p>A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.</p> |
| 申请人 |
ETHICON ENDO-SURGERY, INC. |
发明人 |
WEINER, EITAN, T.;ALDRIDGE, JEFFREY, L.;MESSERLY, JEFFREY, D.;GIORDANO, JAMES, R.;STULEN, FOSTER, B.;MILLER, MATTHEW, C.;WILEY, JEFFREY, P.;PRICE, DANIEL, W.;KOCH, ROBERT, L.;BROTZ, JOSEPH, A.;HEIN, JOHN, E.;VOEGELE, AARON, C.;ABBOTT, DANIEL, J.;KILLINGER, SCOTT, B.;DAVISON, MARK, A.;YATES, DAVID, C.;MONSON, GAVIN, M.;TEBBE, MARK E.;CLEM, WILLIAM E. |
