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Device for removing an elongated structure implanted in biological tissue

  • US 5,697,936 A
  • Filed: 05/04/1995
  • Issued: 12/16/1997
  • Est. Priority Date: 11/10/1988
  • Status: Expired due to Term
First Claim
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1. A device (10) for removing from a patient (12) a previously implanted elongated structure (14);

  • the elongated structure (14) having an outside dimension, a proximal end (16), and a distal end (20) located within the patient; and

    the device (10) comprising in combination;

    a sheath member (22) having an inside dimension greater than the outside dimension of the elongated structure (14); and

    a snare (24) associated with the sheath member (22) and shaped as a coil dimensioned to encircle one of the proximal end (16) and the distal end (20) of the elongated structure (14), the coil comprising a plurality of individual coil loops each dimensioned to encircle the one of the proximal end (16) and the distal end (20) of the elongated structure (14), and the sheath member (22) delivering the snare (24) to the one of the proximal end (16) and the distal end (20) of the elongated structure (14).

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