发明名称 |
Cordless hand-held ultrasonic cautery cutting device |
摘要 |
An ultrasonic surgical assembly includes an ultrasonic transducer operable to convert a received motional voltage into a movement of a cutting blade of an ultrasonic waveguide, a motional feedback circuit connected in a parallel configuration with the transducer, a variable power source operable to apply a first voltage between a set of connection points to the parallel configuration, a voltage meter operable to determine a feedback voltage measured from the motional feedback circuit, and a voltage controller operable to vary an output of the power source based upon the measured feedback voltage, resulting in a substantially constant feedback voltage and maintaining a substantially constant rate of movement of the cutting blade across a variety of cutting loads.
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申请公布号 |
US8333778(B2) |
申请公布日期 |
2012.12.18 |
申请号 |
US201113072247 |
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 |
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代理人 |
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主权项 |
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地址 |
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