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公开(公告)号:US20220241818A1
公开(公告)日:2022-08-04
申请号:US17325669
申请日:2021-05-20
Inventor: Yong Tae KIM , Kyung Min BAIK , Sung Mok KIM , Hyung Jin LEE , Il DOH
Abstract: The present invention relates to a flat-plate focusing ultrasonic transducer and an acoustic lens composed of an annular array piezoelectric element and methods of manufacturing and designing thereof, more particularly to a flat-plate focusing ultrasonic transducer composed of an annular array piezoelectric element, wherein the annular array piezoelectric element has a plurality of concentric regions which is concentrically arranged in a concentric circle shape with respect to a center point, the concentric region has ring shaped sound insulation regions and piezoelectric regions which are alternatively formed in a direction from the center point to a radius direction, so as to focus a sound wave near a focal point, wherein the piezoelectric regions are composed of a piezoelectric ring that is composed of a piezoelectric material and thus excites a sound wave, the concentric region is in a shape of a flat-plate of which both sides are flat and which has a constant thickness, and each radius of the plurality of the sound insulation regions and the piezoelectric regions in the concentric region are calculated based on a set focal length of the ultrasonic transducer and a frequency of a set sound wave.
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公开(公告)号:US20170333007A1
公开(公告)日:2017-11-23
申请号:US15243254
申请日:2016-08-22
Inventor: Se Hwa Kim , Yong Tae KIM , Dong Hee MA
CPC classification number: A61B8/587 , A61K49/22 , B29B7/08 , B29C39/003 , B29C39/02 , B29K2005/00 , B29K2105/0035 , B29K2105/0061 , B29K2105/0064 , B29K2995/0001 , B29L2031/40 , B29L2031/753
Abstract: The present disclosure relates to an ultrasound phantom for a focused ultrasound wave. More specifically, the present invention provides an ultrasound phantom which mimics a body so as to correspond to a speed of sound in the body, in which agarose, sucrose, polydiacetylene vesicle, and distilled water are mixed, and a specific part onto which an ultrasound wave is irradiated by a focused ultrasound transducer is gradually discolored in accordance with a temperature.
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