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Electric plasma-mediated cutting and coagulation of tissue and surgical apparatus

  • US 8,177,783 B2
  • Filed: 11/01/2007
  • Issued: 05/15/2012
  • Est. Priority Date: 11/02/2006
  • Status: Active Grant
First Claim
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1. Apparatus for electrosurgery, adapted to be coupled to first and second electrical leads, comprising:

  • a first monopolar electrode adapted for tissue coagulation together with a remote return electrode and to be coupled to the first lead, the first electrode defining at its extremity a curved shape, a closed part of the curved shape being distal from the first lead;

    a second monopolar electrode adapted for tissue cutting together with the remote return electrode and to be coupled to the second lead, the second electrode having an elongated shape terminating at its extremity in a curved portion;

    the first electrode lying over the second electrode and being electrically insulated therefrom to prevent a current from flowing therebetween; and

    an electrically insulating layer partially covering the second electrode and at least partly exposing an edge of the second electrode.

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