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Polypectomy snare instrument

  • US 6,235,026 B1
  • Filed: 08/06/1999
  • Issued: 05/22/2001
  • Est. Priority Date: 08/06/1999
  • Status: Expired due to Term
First Claim
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1. A surgical instrument for insertion through an endoscope having a handle and a working channel, said surgical instrument comprising:

  • a) an elongate flexible tubular sheath having a proximal and distal ends;

    b) a flexible shaft extending through and axially movable relative to the sheath, said sheath having proximal and distal ends;

    c) an end effector coupled to or formed at said distal end of said shaft;

    d) a first means coupled to said shaft for rotating said shaft relative to said sheath wherein said first means is a first handle including a first member and including a second member provided with a bore, said second member being axially rotatable relative to said first member, said first member having a distal end fixedly coupled to said proximal end of said sheath and a proximal end coupled to said distal end of said tubular member, said shaft extending through said bore, and said second member having means for engaging said shaft such that rotation of said second member relative to first member causes rotation of said shaft relative to said sheath;

    e) a second means for longitudinally moving said shaft relative to said tubular sheath; and

    f) a tubular member coupling said first and second means together.

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