发明名称 |
Method of maintaining constant movement of a cutting blade on an ultrasonic waveguide |
摘要 |
A method of maintaining a constant movement of a cutting blade of an ultrasonic waveguide includes providing 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, and 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. Current is supplied through a set of connection points of the parallel configuration with the variable power source to, thereby, create the motional current in the ultrasonic transducer and the motional current is regulated with a current controller by varying an output of the power source, thereby maintaining a substantially constant rate of movement of the cutting blade across a variety of cutting loads.
|
申请公布号 |
US8197502(B2) |
申请公布日期 |
2012.06.12 |
申请号 |
US201113072187 |
申请日期 |
2011.03.25 |
申请人 |
SMITH KEVIN W.;BALES, JR. THOMAS O.;PALMER MATTHEW A.;DEVILLE DEREK DEE;COVIDIEN AG |
发明人 |
SMITH KEVIN W.;BALES, JR. THOMAS O.;PALMER MATTHEW A.;DEVILLE DEREK DEE |
分类号 |
A61B17/32 |
主分类号 |
A61B17/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|