Ultrasonic imaging apparatus having circulating cooling liquid for cooling ultrasonic transducers thereof
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United States of America Patent
Stats
-
Jun 7, 1988
Grant Date -
N/A
app pub date -
May 2, 1986
filing date -
May 10, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ultrasonic imaging apparatus comprises an ultrasonic transducer having two ultrasonic transducer elements which rotatably arranged back to back at the distal portion of an endoscope and a motor provided in the operation section of the endoscope and coupled to the transducer through a drive shaft to rotate the transducer. A transducer drover alternately drives the transducer elements during one rotation of the transducer. A switching circuit alternately switches the echo signals from the transducer elements during one rotation of the transducer. The echo signals of the transducer elements through the switch circuit are signal-processed and supplied to a TV monitor to display a tomographic image.
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Cited Art Landscape
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