| 主权项 |
1. A method of coagulating tissue comprising the steps of:
i) providing an electrosurgical apparatus comprising an elongate tube having a proximal end, a distal end, a distal end face, one or more first apertures located at the distal end face, one or more second apertures located along a periphery of the tube between the proximal end and the distal end, a conduit linking the proximal end and the distal end of the tube, and at least one electrode, ii) supplying an ionizable gas through the conduit to the distal end of the tube, iii) supplying high frequency energy to the at least one electrode in order to ionize the gas, iv) maneuvering the electrosurgical apparatus such that, when the one or more first apertures are closer to the tissue to be coagulated than the one or more second apertures, an arc is formed between the at least one electrode and the tissue such that a plasma is created between the at least one electrode and the tissue, the plasma passing through the one or more first apertures, and v) repositioning the electrosurgical apparatus such that, when the one or more second apertures are closer to the tissue to be coagulated than the one or more first apertures, an arc is formed between the at least one electrode and the tissue such that a plasma is created between the at least one electrode and the tissue, the plasma passing through the one or more second apertures. |
