Rapid exchange catheter with external wire lumen
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United States of America Patent
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-
Aug 27, 1996
Grant Date -
N/A
app pub date -
Nov 19, 1992
filing date -
Nov 19, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A catheter formed of an elongated shaft with a dilatation balloon at the distal end includes a guide wire lumen external to the balloon. The guidewire lumen extends from the distal tip of the catheter to a proximal port distal from the proximal end of the catheter. The shaft is formed of a proximal hypotube and a distal spring coil. In some embodiments, the wire lumen extends the full length of the catheter and includes apertures for drug delivery or perfusion. A core wire is included to enhance the pushability of the catheter and support the balloon.
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