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Ultrasonic diagnosis apparatus

  • US 5,014,711 A
  • Filed: 01/30/1990
  • Issued: 05/14/1991
  • Est. Priority Date: 02/20/1987
  • Status: Expired due to Fees
First Claim
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1. An ultrasonic diagnosis apparatus comprising:

  • ultrasonic/electrical transducer means having a plurality of pixel electrodes arranged in a two-dimensional matrix, said pixel electrodes each corresponding to a given pixel, and being arranged facing a slice of a target body and parallel to said slice;

    an ultrasonic lens, arranged in parallel to said slice and to said transducer means, for converging an ultrasonic beam transmitted from each pixel electrode of said ultrasonic/electrical transducer means onto a corresponding point of said slice, and for converging an ultrasonic beam reflected at said points of said slice onto corresponding pixel electrodes of said ultrasonic/electrical transducer means;

    means for sequentially transmitting ultrasonic wave beams from said pixel electrodes of said ultrasonic/electrical transducer means;

    signal readout means for sequentially reading out an electrical signal from said pixel electrodes of said ultrasonic/electrical transducer means which corresponds to an ultrasonic beam reflected at each of said points of said slice, after a predetermined time period after an operation of said transmission means; and

    imaging means for preparing image information of said slice from said electrical signal read out from said ultrasonic/electrical transducer means by said signal read out means.

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