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Ultrasonic surgical instruments with distally positioned jaw assemblies

  • US 9,351,754 B2
  • Filed: 06/29/2012
  • Issued: 05/31/2016
  • Est. Priority Date: 06/29/2012
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • an ultrasonic blade positioned at a distal end of an ultrasonic waveguide, the ultrasonic waveguide extending distally substantially parallel to a longitudinal axis;

    a shaft extending proximally from the ultrasonic blade along the longitudinal axis; and

    a jaw assembly, wherein the jaw assembly comprises;

    a wrist member pivotable about a wrist pivot axis substantially perpendicular to the longitudinal axis from a first position where the wrist member is substantially parallel to the ultrasonic blade to a second position where the wrist member is pivoted away from the ultrasonic blade, wherein the wrist pivot axis is offset from the ultrasonic blade in an offset direction, wherein the offset direction is perpendicular to the longitudinal axis;

    a first jaw member extending distally from and pivotably coupled to the wrist member, wherein the first jaw member is pivotable about a jaw pivot axis substantially perpendicular to the wrist pivot axis; and

    a second jaw member extending distally from and pivotably coupled to the wrist member, wherein the second jaw member is pivotable about the jaw pivot axis, and wherein the first and second jaw members are further pivotable about the jaw pivot axis relative to one another from an open position where the first and second jaw members are pivoted away from one another to a closed position where the first and second jaw members are pivoted towards one another.

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