Patent ID: 8540742
Filing Date: 2013-09-24
Classification: A61B

Abstract:
1. An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having a distal tip, a proximal end adapted for longitudinal ultrasonic vibrational excitation, a most-distal longitudinal vibration node, a second-most-distal longitudinal vibration node, a treatment portion extending from the distal tip toward the second most-distal vibration node, at least one functional asymmetry, and at least one balance asymmetry, wherein the at-least-one functional asymmetry and the at-least-one balance asymmetry create a balance point, wherein longitudinal ultrasonic vibrational movement of the proximal end creates ultrasonic vibration of the ultrasonic-surgical-blade body which is substantially purely longitudinal ultrasonic vibration proximal the balance point and which is a combination of longitudinal and transverse ultrasonic vibration distal the balance point and in at least some of the treatment portion, and wherein an amplitude of the transverse ultrasonic vibration at the distal tip is less than substantially ten percent of a maximum amplitude of the transverse ultrasonic vibration of the treatment portion of the ultrasonic-surgical-blade body.