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Excisional biopsy devices and methods

  • US 6,423,081 B1
  • Filed: 10/13/1999
  • Issued: 07/23/2002
  • Est. Priority Date: 09/03/1998
  • Status: Expired due to Term
First Claim
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1. An invasive interventional device for soft biological tissue, comprising:

  • a rotatable tubular member having a distal tip adapted to penetrate the tissue;

    a work element disposed near the distal tip of the tubular member, the work element acting upon the tissue coming into contact therewith as the tubular member rotates;

    an ultrasound transducer disposed near the distal tip of the tubular member and away from the work element, so that the transducer sweeps a plane within the tissue ahead of the work element as the tubular member rotates; and

    means for controlling an operation of the work element based upon information gathered from the ultrasound transducer.

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