| 摘要 |
<p>An electrosurgical system includes a generator ( 10 ) for generating radio frequency power, an electrosurgical instrument ( 12 ) including at least two electrodes, and an identification element ( 80 ) representative of at least the number of electrodes present on the instrument. The generator ( 10 ) comprises an RF output stage having three or more output connections ( 62 A, 62 B, 62 C), and a power supply ( 66 ) coupled to the output stage for supplying power to the output stage. The generator ( 10 ) also includes a controller ( 72 ) capable of varying the RF signal supplied to at least one of the three or more output connections ( 62 A, 62 B, 62 C), and a switching circuit ( 62 ) for varying the connections between the power supply ( 66 ) and the three or more output connections. The generator ( 10 ) also includes a sensing circuit capable of sensing the identification element ( 80 ) carried by the instrument, and of sending a signal to the switching circuit ( 62 ) to set the switching circuit to a mode of operation depending on the number of electrodes present on the instrument ( 12 ).</p> |
