Polymer matrix drug delivery apparatus
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United States of America Patent
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Sep 15, 1998
Issued Date -
N/A
app pub date -
Aug 16, 1994
filing date -
Nov 9, 1992
priority date (Note) -
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Abstract
A drug delivery apparatus and method for delivering a drug locally to internal body tissue using a catheter device including a polymer matrix containing a drug. The drug is actively transported from the polymer matrix to the internal body tissue using iontophoresis or phonophoresis. In addition, the polymer matrix can be expanded to promote intimate contact with the walls of a passageway or vessel.
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