Method and apparatus for detection of ultrasound transducer failure in catheter systems
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United States of America Patent
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N/A
Issued Date -
Nov 18, 2004
app pub date -
May 12, 2003
filing date -
May 12, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods and systems for detecting ultrasound transducer failure in an ultrasound catheter system comprise providing a memory device or other data storage element or catheter body having at least one ultrasound transducer disposed. The memory device stores a test current amplitude value which relates to an actual operating peak current for the at least one ultrasound transducer. An average actual operating peak current amplitude during a first period of time is calculated, and an actual operating peak current for the at least one ultrasound transducer over a second period of time may optionally also be calculated. Transducer failure has occurred if the actual operating peak current amplitude passes outside of a fit preferred range during the firs period of time, or the actual operating peak current amplitude passes outside of a second preferred range during a second period of time.
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