Mri device used for generating pressure waves

Details Mri device used for generating pressure waves Mri device used for generating pressure waves

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61B 17/22 (2006.01) B06B 1/04 (2006.01) G01R 33/28 (2006.01) G10K 15/04 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2075935

2075935 9111958 PCTABS00006 A magnetic resonance imaging device (502, 504, 506, 508, 606, 608) is used to provide the static magnetic field (Bo) for transducers (120, 520, 620). The static magnetic field in combination with electric current pulses (118) energize phased arrayed transducers to generate acoustic waves or motion. The transducers (120, 520, 620) can be arranged in the magnetic resonance imaging device static magnetic field (Bo) to focus acoustic shock waves for the disintegration of target calculi in extracorporeal shock wave lithotripsy. The magnetic resonance imaging device is also used for target localization and monitoring of the mechanical energy effects of the transducers. In further embodiments, the transducers include coils that are implantable within a subject body and can be moved in the magnetic resonance imaging device's static magnetic field.

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