Drug delivery and dilatation-drug delivery catheters in a rapid exchange configuration
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United States of America Patent
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May 7, 1996
Grant Date -
N/A
app pub date -
Aug 8, 1994
filing date -
Aug 8, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Catheters for drug delivery or for both dilatation and drug delivery are provided with a guide wire lumen terminating within the catheter shaft and having an opening through the catheter shaft to enable a guide wire to exit the catheter shaft substantially distal to the proximal end of the catheter. In one embodiment, drug delivery ports are provided between occlusion balloons. In another embodiment, a dilatation balloon is also provided between the occlusion balloons. In another embodiment, a double layered balloon is provided to simultaneously dilatate the stenosis and deliver medication to the site. Alternatively, a balloon can be provided which only delivers medication.
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