Heat reducing ultrasound diagnostic apparatus
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United States of America Patent
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-
Mar 6, 2012
Grant Date -
Oct 26, 2006
app pub date -
Feb 6, 2006
filing date -
Feb 18, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ultrasound diagnostic apparatus having a continuous wave Doppler mode. A line switching section is provided between an array transducer and a unit which has a CW transmission section and a CW reception section, for changing a transmitting and receiving aperture pattern. When a first transmitting and receiving aperture pattern is set on the array transducer, a first aperture functions as a transmitting aperture and a second aperture functions as a receiving aperture. When a second transmitting and receiving aperture pattern is set on the array transducer, the second aperture functions as a transmitting aperture and a first aperture functions as a receiving aperture. The patterns are switched whenever predetermined amount of time has elapsed after a prescribed event such as a pattern change, resumption of continuous wave reception, and so on. As such, localized heat generation or deterioration on the array transducer can be prevented.
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