Ultrasound probe
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United States of America Patent
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Issued Date -
Aug 25, 2011
app pub date -
Feb 21, 2011
filing date -
Feb 23, 2010
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Abstract
An ultrasound probe for diagnostic images includes a set or array of electroacoustic transducers generating an ultrasonic beam and defining at least one scan plane or a predetermined scan volume, and one or more layers matching acoustic impedance characteristics of the transducers with acoustic impedance characteristics of tissues under examiantion. The layers overlap the transducers, on the face emitting/receiving acoustic pulses. Acoustic properties of the material or materials constituting the one or more layers, the geometric shape of the layers, and/or the structure of the transducers cause the ultrasonic beam to be apodized and the profile of the ultrasonic beam in a plane perpendicular to the scan plane and parallel to the ultrasonic beam to be highly homogeneous. The emitted pulse has a greater intensity uniformity in the part of the ultrasonic beam closer to the scan plane and a predetermined lower intensity in side lobes of the ultrasonic beam.
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