发明名称 |
Battery-Powered Electrosurgical Forceps With Multi-Turn Selectable-Ratio Transformer |
摘要 |
An electrocautery surgical device includes a battery power source and radio-frequency signal generating circuitry electrically coupled to the battery power source and operable to deliver power to an electrosurgical forceps. The radio-frequency signal generating circuitry includes a transformer having a primary winding and a secondary winding. The primary winding includes first and second primary sub-windings. At least one switching component is electrically coupled to the first and second primary sub-windings and is operable to switch between engaging the first primary sub-winding and engaging the second primary sub-winding such that a current flows through the first and/or second primary sub-windings. The first and second primary sub-windings have a different number of turns such that the radio-frequency signal generating circuitry produces a different impedance value depending on which one of the first and second primary sub-windings is engaged.
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申请公布号 |
US2011172660(A1) |
申请公布日期 |
2011.07.14 |
申请号 |
US201113004670 |
申请日期 |
2011.01.11 |
申请人 |
BALES JR THOMAS O;PALMER MATTHEW A;SMITH KEVIN W |
发明人 |
BALES, JR. THOMAS O.;PALMER MATTHEW A.;SMITH KEVIN W. |
分类号 |
A61B18/18 |
主分类号 |
A61B18/18 |
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