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Surgical instrument for forming a knot

  • US 5,846,254 A
  • Filed: 10/09/1997
  • Issued: 12/08/1998
  • Est. Priority Date: 04/08/1997
  • Status: Expired due to Term
First Claim
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1. A surgical instrument for forming a fully tied knot to fasten bodily tissue during a surgical procedure, said instrument comprising:

  • a) a suture cartridge at a distal end of said instrument, said cartridge containing a suture filament configured into a partially tied knot at a distal end of said suture filament;

    b) a cartridge carrier at the instrument distal end for receiving said suture cartridge;

    c) a grasping jaw facing said suture cartridge in said cartridge carrier, said grasping jaw moveable from an open position spaced from said suture cartridge to a closed position adjacent said suture cartridge;

    d) a handle assembly spaced from said suture cartridge and located at a proximal end of said instrument, said handle assembly having;

    i) a grip for manipulating said instrument,ii) a first actuator for effecting the movement of the grasping jaw from the open position to the closed position, andiii) a second actuator operatively connected to a proximal end of said suture filament for pulling the filament proximal end proximally so as to form said fully tied knot from said partially tied knot to fasten the bodily tissue; and

    e) a closure tube coupling said cartridge carrier to said handle assembly, said closure tube moveable from a proximal position wherein said grasping jaw is in the open position to a distal position wherein said grasping jaw is in the closed position in response to actuation of said first actuator.

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