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Breast biopsy system and method

  • US 6,331,166 B1
  • Filed: 04/08/1998
  • Issued: 12/18/2001
  • Est. Priority Date: 03/03/1998
  • Status: Expired due to Term
First Claim
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1. A biopsy instrument for isolating body tissue, comprising:

  • an elongate shaft having a longitudinal axis and a distal end;

    an electrosurgical tissue cutting element having a curvilinear cutting surface secured to the distal end of the shaft; and

    a proximal tissue cutting, element disposed on the elongate shaft proximal of the distal tissue cutting element which is radially extendable from a radially retracted position to a radially extended position, relative to the longitudinal axis, having an arcuate shape and being movable in said radially extended position and arcuate shape to isolate a desired tissue specimen from surrounding tissue by defining a peripheral margin about said tissue specimen.

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