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Medical Ultrasonic Cauterization and Cutting Device and Method

  • US 20100030248A1
  • Filed: 07/31/2009
  • Published: 02/04/2010
  • Est. Priority Date: 08/01/2008
  • Status: Active Grant
First Claim
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1. An ultrasonic surgical instrument comprising:

  • a shaft having a proximal end and a distal end;

    a first jaw having a proximal end and a distal end, the distal end of the shaft terminating at the proximal end of the first jaw, the first jaw having;

    an internal trough running from and through the proximal end of the first jaw and terminating at a point prior to the distal end of the first jaw; and

    a surface having a plurality of teeth on either side of the trough and at the distal end of the first jaw;

    a second jaw having a surface facing the surface of the first jaw and having a plurality of teeth thereat; and

    an ultrasonic waveguide extending beyond the shaft and being slidably engagable with the trough and having a blade, the ultrasonic waveguide having;

    a distal end;

    a proximal end;

    a top surface portion; and

    a tissue compressing surface upwardly sloping from the distal end of the blade toward the proximal end of the blade, at least one of the tissue compressing surface and the top surface portion forming a cutting surface,wherein the jaws are operable to compress tissue therebetween and the blade is operable to slide within the trough to further compress and cut the compressed tissue as the blade moves in a direction from the proximal end of the first jaw to the distal end of the first jaw.

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