Patent ID: 8649242
Filing Date: 2014-02-11
Classification: G01S,G10K

Abstract:
1. A device for the insonification of a medium, which is designed to generate a beam of focused waves around a point in a focus zone, used for imaging of the medium or changing the properties of the medium, where the insonification device includes an intrinsic or extrinsic support structure on which is installed a network of a predetermined number of ultrasound transducers which are designed to be controlled independently for the generation of the focused wave beam, wherein the transducers used for the generation of the focused wave beam are wide transducers with dimensions that are greater than a few wavelengths, located at regular intervals along at least two concentric Archimedes's spirals wound onto a three-dimensional concave surface of the support, with the winding of the spirals and the positions of the transducers on the spirals being chosen so that the spatial distribution of the transducers over the three-dimensional surface is homogeneous, with the shape and the size of the three-dimensional surface also being chosen to allow optimal focusing of the beam at a predetermined focal length, and with the concave side of the three-dimensional surface being oriented toward the focus zone.