Patent ID: 9226849
Filing Date: 2016-01-05
CPC Classification: A61F,A61M,G16H

Claim Text:
1. An apparatus for controlling ultrasonic power delivery to a surgical area, comprising: a device configured to encounter vacuum pressure at the surgical area; a vacuum sensor configured to monitor vacuum pressure encountered by said device; and a computer configured to compute an ultrasonic pulse profile for delivery to a needle configured to vibrate based on the ultrasonic pulse profile received, the ultrasonic pulse profile based on monitored vacuum pressure received from the vacuum sensor, wherein the computer is further configured to compute and apply at least one pulse to the needle, each pulse having an ultrasonic pulse shape formed based on actual sensed vacuum pressure; wherein the formed ultrasonic pulse shape comprises a predetermined ultrasonic pulse shape portion superimposed on an altered ultrasonic pulse shape portion; wherein the altered ultrasonic pulse shape portion is either an increased energy portion comprising an increase in energy proportional to an increase in sensed vacuum pressure or a decreased energy portion comprising a decrease in energy proportional to a decrease in sensed vacuum pressure, and wherein the increased energy portion and decreased energy portion are determined based upon a ratio of actual sensed vacuum pressure to maximum sensed vacuum pressure, taking into account the maximum pulse amplitude and minimum pulse amplitude.