Patent ID: 6352510
Filing Date: 2002-03-05
Classification: A61B,B06B,G01S,G10K,Y10S

Abstract:
An ultrasound cross transducer with an extended range of beam scan angles for three dimensional image acquisition comprising:one transmit array having a plurality of individual elements is made on the piezo electric material substrate; said individual elements are connected with pulse drivers and provide only the emission of acoustic wave pulses into the investigated object, one receive array having a plurality of individual elements is made on said piezo electric material plate also, said individual elements are connected with only a reception apparatus, which provides the reception of the echo signals from the array individual elements, an amplification, a digitization, a memorization of echo signal amplitudes and a displaying of images, said transmit and receive arrays having axial symmetry with a common origin and oriented relative to each other for an angle equal to 90Â°, said transmit and receive arrays have a shared element if the number of said individual elements is odd and have no said shared element if the number of array individual elements is even, said transmit and receive arrays have a pitch P of array individual elements and are used within limits of frequencies with wave length &lgr; from (10-5)*P to (0.6-0.7) *P.