Ultrasonically marked cardiac catheters
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United States of America Patent
Stats
-
Oct 6, 1987
Grant Date -
N/A
app pub date -
Jan 31, 1985
filing date -
Jul 24, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The hollow cylindrical wall of the catheter is composed of flexible, electrically insulating, ultrasonically transparent material. Embedded therein are spaced tubular-shaped ultrasonic piezoelectric transducers which substantially surround the lumen. The transducers receive signals from the imaging transducer on the body surface and serve to establish catheter location within the body during a diagnostic procedure. Electrical connector leads from the transducers are embedded in the wall and connected to a signal processor which provides an output for incorporation into the display of an echocardiograph image display system.
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