Ultrasonic diagnosis apparatus

Details Ultrasonic diagnosis apparatus Ultrasonic diagnosis apparatus

A - Human Necessities

61

B

349/36

A61B 10/00 (2006.01) G01S 15/00 (2006.01) G01S 15/89 (2006.01) G10K 11/34 (2006.01)

Patent

CA 1145839

- 17 - Abstract of the Disclosure An ultrasonic diagnosis apparatus is provided with a plurality of phased array transducer elements arranged in a row. The number of simultaneously driven trans- ducer elements is changed in response to a rate pulse to increase the ultrasonic scanning line density without increasing the number of the transducer elements, while the position of the focal point is adjusted to maintain the minimum width position of the ultrasonic beam pro- vided by the group of the simultaneously driven trans- ducer elements substantially constant irrespective of the change of the number of the simultaneously driven transducer elements by controlling the phase of transmitted and received ultrasonic waves by means of delay elements.

355780

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