Patent ID: 8945162
Filing Date: 2015-02-03
Classification: A61B,A61F,A61N,B06B

Abstract:
1. A method for delivering ultrasonic energy during a surgical procedure performed within a surgical environment comprising a fluid, comprising: applying ultrasonic energy at a first energy level above a de minimis energy level for a time period sufficient to induce transient cavitation within the fluid, wherein the time period is between two and three milliseconds; and providing ultrasonic energy for a predetermined period after attaining transient cavitation within the fluid according to a successively decreasing stepped-down ultrasonic energy level profile comprising applying energy at a nonzero second lower constant value energy level above the de minimis energy level and lower than the first energy level; wherein the predetermined period begins immediately after the time period ends, and wherein ultrasonic energy is provided at a zero energy level before the time period and after applying ultrasonic energy according to the successively decreasing stepped down ultrasonic energy level profile.