×

Electrosurgical cutting and sealing instruments with cam-actuated jaws

  • US 8,834,518 B2
  • Filed: 04/12/2010
  • Issued: 09/16/2014
  • Est. Priority Date: 04/12/2010
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument comprising:

  • a handle;

    a shaft coupled to the handle and extending distally along a longitudinal axis;

    an end effector positioned at a distal end of the shaft, wherein the end effector comprises;

    a first jaw member defining a first longitudinal slot;

    a second jaw member defining a second longitudinal slot, the second jaw member pivotable towards the first jaw member about a pivot point and comprising a cam pin positioned offset from the pivot point; and

    a reciprocating member translatable distally and proximally parallel to the longitudinal axis through the first longitudinal slot and the second longitudinal slot, wherein a distal portion of the reciprocating member defines a blade, wherein the reciprocating member defines a cam slot for receiving the cam pin, wherein distal motion of the reciprocating member exerts a force on the cam pin such that the second jaw member pivots towards the first jaw member, and wherein proximal motion of the reciprocating member exerts a force on the cam pin such that the second jaw member pivots away from the first jaw member.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×