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Multielectrode electrosurgical blade

  • US 8,357,155 B2
  • Filed: 06/29/2006
  • Issued: 01/22/2013
  • Est. Priority Date: 07/20/2004
  • Status: Active Grant
First Claim
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1. An electrosurgical blade for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:

  • an active electrode having a first section, a first tapered section terminating at a first conductor edge, and a first electrical coupling surface for electrically coupling the active electrode to a handle;

    a first outermost insulation layer having a second tapered section generally following the contours of and overlaying the active electrode which tapers against a side of the first tapered section to expose the first conductor edge;

    a return electrode electrically isolated from the active electrode, the return electrode having a third section, a third tapered section terminating at a second conductor edge, and a second electrical coupling surface for electrically coupling the return electrode to the handle;

    a second outermost insulation layer having a fourth tapered section generally following the contours of and overlaying the return electrode which tapers against a side of the third tapered section to expose the second conductor edge; and

    a passive electrode electrically isolated from the active electrode and the return electrode, the passive electrode having a third electrical coupling surface for electrically coupling the passive electrode to the handle.

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