| 摘要 |
<p>A dual-channel RF power delivery system for applying RF energy to dual electrodes (26) of an RF ablation device with independent control of the power level, frequency, phase, and time duration of the RF energy applied to each electrode to more accurately control the ablation of a target tissue. The power delivery system supplies a first controlled RF signal having a first power level, frequency, phase, and time duration to the electrode (26) of a first flexible stylet (18) and a second controlled RF signal having a second power level frequency, phase, and time duration to the electrode (26) of a second flexible stylet (19). The difference btween the first and second power levels and the temperature of the tissue between the first stylet (18) and second stylet (19) are monitored to control the ablation of the target tissue. The supply of the first RF signal is terminated when the monitored temperature of the first stylet (18) exceeds a first predetermined value and the supply of the second RF signal is terminated when the monitored temperature of the second stylet (19) exceeds a second predetermined value.</p> |
