Kevin W. Smith,Thomas O. Bales, Jr.,Matthew A. Palmer,Derek Dee Deville
申请号：
US13072221
公开号：
US08236020B2
申请日:
2011.03.25
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An ultrasonic surgical assembly includes an ultrasonic transducer operable to convert a received motional current into a movement of a cutting blade of an ultrasonic waveguide, a measurement circuit connected in a parallel configuration with the ultrasonic transducer, a variable power source operable to supply current through a set of connection points to the parallel configuration and thereby create the motional current in the ultrasonic transducer, and a current controller operable to regulate the motional current by varying an output of the variable power source, thereby maintaining a substantially constant rate of movement of the cutting blade across a variety of cutting loads.
