CPC A61B 17/22012 (2013.01) [A61B 2017/22014 (2013.01)] | 18 Claims |
1. A method for attempting to fragment or comminute an object in a body using ultrasound, comprising:
producing a burst wave lithotripsy (BWL) waveform by a therapy transducer, wherein the BWL waveform is configured to fragment or comminute the object, wherein the BWL waveform comprises a first burst of continuous ultrasound cycles and a second burst of continuous ultrasound cycles, wherein the continuous ultrasound cycles of the first and second burst are sinusoidal at the object, and wherein producing the BWL waveform comprises:
determining a burst frequency of the bursts of the BWL waveform, wherein the burst frequency corresponds to a frequency of repeating the bursts of the BWL waveform;
determining a cycle frequency of the continuous ultrasound cycles in the first burst and the second burst;
during a first burst time, transmitting a first plurality of the continuous ultrasound cycles in the first burst of the BWL waveform toward the object;
during a rest time, not transmitting the continuous ultrasound cycles, wherein the rest time separates the first burst from the second burst;
during a second burst time, transmitting a second plurality of the continuous ultrasound cycles in the second burst of the BWL waveform toward the object; and
repeating transmissions of the BWL waveforms separated by the rest times, wherein the bursts of the BWL waveforms separated by the rest times are repeatedly transmitted between 20 times and 39,600,000 times.
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