| 摘要 |
An electrosurgical apparatus comprising an energy source operable to concurrently provide a first signal and a second signal, said first and second signals having different frequencies; and a signal processor operable to receive a third signal from a patient's body, to process said third signal, and to produce an output based on a processing of said third signal; wherein said third signal is an evoked potential generated by said patient's body in response to a delivery of said second signal to said patient's body.
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