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Blades with functional balance asymmetries for use with ultrasonic surgical instruments

  • US 8,241,312 B2
  • Filed: 08/17/2005
  • Issued: 08/14/2012
  • Est. Priority Date: 10/05/1999
  • Status: Active Grant
First Claim
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1. An ultrasonic clamp coagulator apparatus comprising:

  • a housing;

    an outer tube having a proximal end joined to said housing, and a distal end;

    an ultrasonic waveguide positioned within said outer tube, said ultrasonic waveguide having a blade extending distally from said distal end of said outer tube; and

    said blade having an ultrasonically actuated motion in substantially a single plane of motion and comprises a curved treatment portion defining a plane of asymmetry perpendicular to the plane of motion and a balance portion including at least one balance asymmetry, wherein the balance asymmetry is positioned to counter motion of the blade in a plane orthogonal to the single actuation plane of motion.

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