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Bipolar endoscopic surgical scissor blades and instrument incorporating the same

  • US 5,779,701 A
  • Filed: 04/27/1995
  • Issued: 07/14/1998
  • Est. Priority Date: 04/27/1995
  • Status: Expired due to Term
First Claim
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1. A bipolar electrosurgical instrument for cutting and coagulating tissue comprising:

  • a) first and second blade members each comprising a laminated assembly of an outer electrically conductive layer and an inner face layer comprising an element selected from the group consisting of titanium dioxide and chromium dioxide, said inner face layer forming a shearing surface of said blade member;

    b) means for pivotally joining said first and second blade members together with their respective shearing surfaces facing one another;

    c) means coupled to at least one of said first and second blade members for imparting a scissors-like movement relative to the other of said first and second blade members; and

    d) means for applying a voltage between the outer electrically conductive layers of said first and second blade members.

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