Patent ID: 8118823

Claim:
An ultrasonic horn configured for use with an ultrasonic surgical handpiece having a resonator that generates ultrasonic waves, the ultrasonic horn comprising: an elongated member having a proximal end, a distal end, and a longitudinal axis, the proximal end being adapted to receive ultrasonic waves from the handpiece, the distal end having a distal tip comprising a contacting annulus formed of a plurality of angled land members positioned to make contact with a material to which ultrasonic energy is to be imparted; a first land member of the plurality of angled land members having a first intersecting angle with respect to the longitudinal axis; and a second land member of the plurality of angled land members having a second intersecting angle with respect to the longitudinal axis; wherein the first angle intersects the longitudinal axis within the elongated member and the second angle intersects the longitudinal axis when extrapolated outside the elongated member.