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Surgical instrument for endoscopic and general surgery

  • US 5,582,617 A
  • Filed: 10/11/1994
  • Issued: 12/10/1996
  • Est. Priority Date: 07/21/1993
  • Status: Expired due to Term
First Claim
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1. A surgical instrument for use in endoscopy comprising:

  • a tubular member having a proximal end and a distal end;

    an end effector pivotally attached directly to the distal end of the tubular member, the end effector comprising a first piece and a second piece;

    linkage extending through the tubular member, the linkage comprising;

    a first elongated member operably connected to the first end effector piece; and

    a second elongated member operably connected to the second end effector piece; and

    a handle attached to the proximal end of the tubular member, the handle comprising;

    a first control means for causing translational movement of the first elongated member relative to the second elongated member, thereby causing the first end effector piece to pivot relative to the second end effector piece; and

    a second control means independent of the first control means, the second control means for causing relative translational movement between the tubular member and both the first and second elongated members without significant relative translational movement between the first and second elongated members, thereby causing the first and second end effector pieces to pivot simultaneously in the same direction.

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