| 摘要 |
A bipolar electrosurgical instrument comprises a handle ( 5 ), a body ( 1 ) joined to the handle, and a jaw assembly ( 12 ) joined to the body and arranged such that manipulation of the handle allows the opposed jaws of the jaw assembly to be opened and closed with respect to one another. A first of said opposed jaws ( 14 ) has at least a first coagulating electrode, and the other of said opposed jaws ( 13 ) has at least a second coagulating electrode and a cutting electrode ( 16 ) separated from the second coagulating electrode by an insulating member ( 17 ). The instrument is manipulated at the surgical site such that the jaws of the jaw assembly ( 12 ) are open with respect to one another, with the cutting electrode ( 16 ) and at least one of the first and second coagulating electrodes contacting tissue at the surgical site. A radio frequency electrosurgical signal is supplied between the cutting electrode and the at least one coagulating electrode, and the electrosurgical instrument is moved while maintaining the jaws ( 13, 14 ) in their open position so as to cut tissue at the surgical site.
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