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21. 发明申请

US20110021923A1 Redistribution Layer in an Ultrasound Diagnostic Imaging Transducer 有权
标题翻译：超声诊断成像传感器中的再分配层
公开(公告)号：US20110021923A1
公开(公告)日：2011-01-27
申请号：US12780717
申请日：2010-05-14
申请人： Christopher M. Daft , Paul A. Wagner
发明人： Christopher M. Daft , Paul A. Wagner
IPC分类号： A61B8/14
CPC分类号： G01N29/0654 , A61B8/483 , A61B8/54 , G01N29/245 , G01N29/262 , G01S7/52085 , G01S15/8925 , G01S15/8927
摘要： Medical diagnostic ultrasound imaging is performed with a multi-dimensional transducer array and an imaging system for planar scanning. The elements of the array may be distributed on a periodic grid with aperiodic shifts in position. When a one-dimensional array is formed on the array, the aperiodic shifts better distribute acoustic energies, reducing peaks in side lobes. Using a layered structure of switches underneath the acoustic elements, side lobes may be further reduced. The switches are used for interconnecting elements to form macro elements of the one-dimensional aperture on the multi-dimensional array. The switches are distributed on a grid corresponding to the desired imaging frequency. The acoustic elements are distributed with a finer pitch. The finer pitch allows formation of the macro elements for the one-dimensional aperture where the edges of the macro elements have fewer or no periodic patterns.
摘要翻译：使用多维换能器阵列和用于平面扫描的成像系统进行医学诊断超声成像。阵列的元件可以分布在周期性栅格上，其位置具有非周期性位移。当在阵列上形成一维阵列时，非周期性位移更好地分布声能，减少旁瓣中的峰。使用声学元件下面的开关的分层结构，可以进一步减小旁瓣。开关用于互连元件以形成多维阵列上的一维孔径的宏元素。开关分布在对应于所需成像频率的网格上。声学元件以更细的间距分布。较细的间距允许形成用于一维孔径的宏元件，其中宏元件的边缘具有更少或不具有周期性图案。

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