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SURGICAL SNARE

  • US 3,828,790 A
  • Filed: 02/28/1973
  • Issued: 08/13/1974
  • Est. Priority Date: 02/28/1973
  • Status: Expired due to Term
First Claim
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1. A surgical snare comprising an elongated flexible sheath, a lead extending in said sheath, operating loop means connected to the distal-end portion of said lead, actuating means connected to the proximal end portion of said lead for shifting the same relative to said sheath between a retracted position in which said operating loop means is nested within said sheath and a protracted position in which said operating loop means extends beyond the distal end of said sheath and is free to open to form a loop, said operating loop means including an elongated flexible spiral sleeve and an elongated resilient core member extending in said spiral sleeve, and said operating loop means having substantially greater flexibility in the direction parallel to its plane when open than normal thereto.

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