Ultrasound catheter with mechanically steerable beam
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United States of America Patent
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-
Jan 3, 1995
Grant Date -
N/A
app pub date -
Dec 17, 1993
filing date -
Dec 17, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The catheter has a mechanically steerable beam which can be directed at a variable angle with respect to an axis of rotation of the catheter. The ultrasonic transducer can be mounted in a pivoting head and steered by shape memory alloy wires subject to controlled ohmic heating. A feedback system including a marker wire embedded in a capsule wall of the catheter's outer tube can be used to determine the beam angle.
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