Releasable microcapsules on balloon catheters
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United States of America Patent
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Apr 13, 1999
Issued Date -
N/A
app pub date -
Apr 24, 1996
filing date -
Jan 4, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Balloon catheters are prepared to include body affecting chemicals within microcapsules on the exterior of the balloon either alone or with a stent. The coating releases from the balloon when the balloon is inflated into contact with the lumen to be treated. The device provides accurate placement of the dosage required at the location in need of treatment. A sheath may be employed over the balloon and microcapsules to prevent the microcapsules from being rubbed off during delivery through a body lumen. The catheters are especially useful in balloon angioplasty procedures.
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