| 摘要 |
Electrosurgical methods and apparatus for the controlled ablation of tissue from a target site of a patient. The instrument includes a shaft having a proximal and distal end portion and an active electrode on the distal end portion, a return electrode arranged on the shaft spaced from the active electrode, at least one electrical connector extending through the shaft that connects the active electrode with a high frequency power supply, and at least one fluid delivery port adapted to deliver fluid across the active electrode and an aspiration lumen within the shaft having a distal opening that aspirates the fluid.
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