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  • 标题:Noninvasive acoustic manipulation of objects in a living body
  • 本地全文:下载
  • 作者:Mohamed A. Ghanem ; Adam D. Maxwell ; Yak-Nam Wang
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:2020
  • 卷号:117
  • 期号:29
  • 页码:16848-16855
  • DOI:10.1073/pnas.2001779117
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:In certain medical applications, transmitting an ultrasound beam through the skin to manipulate a solid object within the human body would be beneficial. Such applications include, for example, controlling an ingestible camera or expelling a kidney stone. In this paper, ultrasound beams of specific shapes were designed by numerical modeling and produced using a phased array. These beams were shown to levitate and electronically steer solid objects (3-mm-diameter glass spheres), along preprogrammed paths, in a water bath, and in the urinary bladders of live pigs. Deviation from the intended path was on average <10%. No injury was found on the bladder wall or intervening tissue.
  • 关键词:acoustic tweezers ; acoustic radiation force ; kidney stones
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