Patent ID: 8545405
Filing Date: 2013-10-01
Classification: A61B,A61M

Abstract:
1. A method for controlling mass movement of fluid material within a field of interest comprising: (i) transmitting at least one original signal of sound waves transmitted from at least one array of transceivers located outside of a field of interest, or from at least one transceiver located inside a field of interest; (ii) receiving the at least one original signal with at least one receiver or transceiver within the field of interest as a received signal; or receiving the at least one original signal in parallel with multiple transceivers located outside the field of interest if the said original signal is transmitted from within the field of interest; (iii) a processor processing the at least one received original signal by acoustic time-reversal methods to generate a signal content relationship between the original signal and the at least one received signal; (iv) using the generated signal content relationship to design a modified acoustic waveform that will produce a specific acoustic effect in the field of interest near the at least one receiver or transceiver, respectively; and (v) transmitting the modified acoustic waveform from the at least one array of transmitters outside of the field of interest to modify mass movement of materials within the field of interest by focusing pulses of ultrasound and causing mass migration of the fluid material beyond a focus point of the modified acoustic waveform within the field of interest and without damage to tissue.