Imaging guidewire with back and forth sweeping ultrasonic source
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United States of America Patent
Stats
-
Jul 14, 1998
Grant Date -
N/A
app pub date -
Nov 26, 1996
filing date -
Nov 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An imaging guidewire for imaging tissues from inside a patient's body cavity. The imaging guidewire includes an elongated main body portion and an end portion. The end portion has a housing near to the guidewire's distal end, an ultrasonic beam emitting assembly having a pivotable part, and a driver for producing a pivotal motion on the pivotable part. The housing has a portion that is acoustically transparent. The pivotable part is movable and is operatively connected to the housing. The pivotable part can either have on it a transducer for emitting ultrasound or a reflector for reflecting ultrasound. In either case, when the pivotable part pivots it sweeps ultrasonic energy over a selected angle. The driver is located near to the transducer such that all driving motions for driving the pivotal motion occur near the distal end of the imaging guidewire.
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