Steering mechanism and steering line for a catheter-mounted ultrasonic transducer
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United States of America Patent
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-
Sep 21, 1999
Grant Date -
N/A
app pub date -
Jan 31, 1997
filing date -
Jan 31, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A steering mechanism for an ultrasonic transducer assembly includes a housing having a longitudinal axis that extends generally parallel to the proximal end of a catheter. An annular steering ring is mounted to the housing for rotation about the longitudinal axis, and a steering hub is mounted for rotation in the housing and coupled to the steering ring such that rotation of the steering ring with respect to the housing causes rotation of the steering hub. A steering line is secured adjacent the steering hub and extends to the distal end of the catheter such that rotation of the steering hub alters the effective length of the steering line to steer the distal end. The steering line is preferably formed of a stranded polymer such as a gel spun polyethylene.
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