ULTRASOUND LENS MODULE AND ULTRASOUND NEEDLE DEVICE
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United States of America Patent
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Jul 1, 2021
app pub date -
Dec 25, 2019
filing date -
Dec 25, 2019
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Abstract
An ultrasound lens module and an ultrasound needle device are provided. The ultrasound needle device includes a transducer layer and the ultrasound lens module. The ultrasound lens module is disposed on the transducer layer to focus the ultrasound emitted from the transducer layer, in which the ultrasound lens module includes a metamaterial layer. The metamaterial layer includes a flat portion and a micro structure portion. The micro structure portion is located on a surface of the flat portion, in which the micro structure portion includes at least one intrusion structure. When the number of the at least one intrusion structure is one, the intrusion structure is disposed on the flat portion in a spiral shape. When the number of the at least one intrusion structure is greater than one, the intrusion structures are disposed on the flat portion in spiral shapes or in a shape of concentric circles.
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