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US 9,808,830 B2Granted
Ultrasound transducer and ultrasound imaging system with a variable thickness dematching layer
AssigneeGeneral Electric Company
InventorsAlan Tai, Frederic Lanteri, Scott Easterbrook, Jian Zhong Zhao
Life of this patent
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Abstract
An ultrasound transducer and an ultrasound imaging system including an acoustic layer with a plurality of transducer elements and a dematching layer coupled to the acoustic layer. The dematching layer has an acoustic impedance greater than the acoustic layer and the dematching layer has a thickness that varies in order to alter a bandwidth of the ultrasound probe.
Claims20
An ultrasound transducer comprising:
- an acoustic layer including a plurality of transducer elements;
- and
- a dematching layer coupled to the acoustic layer, the dematching layer comprising a front side adjacent to the acoustic layer and a backside opposite of the acoustic layer, the dematching layer having a greater acoustic impedance than the acoustic layer, the dematching layer having a thickness that varies in order to alter a bandwidth of the ultrasound transducer, wherein the front side of the dematching layer defines a curved surface.
An ultrasound imaging system comprising:
- an ultrasound transducer for transmitting and receiving ultrasound signals, wherein the ultrasound transducer comprises an acoustic layer including a plurality of transducer elements, and
- a dematching layer coupled to the acoustic layer, the dematching layer comprising a front side and a backside, the dematching layer having a greater acoustic impedance than the acoustic layer, the dematching layer having a thickness that varies in order to alter a bandwidth of the ultrasound transducer, wherein the front side of the dematching layer defines a curved surface.
Dependencies are inferred from the claim text.