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Surgical instrument

DC
  • US 7,686,826 B2
  • Filed: 07/20/2005
  • Issued: 03/30/2010
  • Est. Priority Date: 10/30/2003
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • an elongated instrument shaft having proximal and distal ends;

    a working member coupled from the distal end of the instrument shaft;

    a control handle disposed at the proximal end of the instrument shaft;

    an actuator cable coupled between the control handle and working member for controlling the working member;

    a distal motion means at the distal end of said instrument shaft;

    a proximal motion means at the proximal end of said instrument shaft;

    actuation means extending between said distal and proximal means whereby any deflection of said control handle with respect to said elongated instrument shaft causes a corresponding motion of said distal motion means for control of said working member;

    and means for manually rotating the instrument shaft and working member relative to said control handle;

    wherein said distal motion means comprises a distal bendable member and said proximal motion means comprises a proximal bendable member that is moveable in any direction;

    and wherein said proximal bendable member is mounted with and for rotation with said means for manually rotating;

    said elongated instrument shaft including an outer shaft tube and an inner shaft tube that is coaxially disposed in said outer shaft tube;

    said outer shaft tube intercoupling said proximal bendable member with said distal bendable member;

    said inner shaft tube intercoupling said proximal bendable member with said distal bendable member;

    said outer shaft tube being the outermost shaft tube;

    said inner shaft tube for accommodating the actuator cable for the working member;

    both said inner and outer shaft tubes, upon rotation of the means for manually rotating, concurrently rotating with said means for manually rotating.

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