Photodynamic therapy balloon catheter with microporous membrane
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United States of America Patent
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Jan 20, 1998
Issued Date -
N/A
app pub date -
Jul 25, 1996
filing date -
Jul 25, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A photodynamic therapy balloon catheter with microporous membrane is provided which has an elongated optical fiber, an inner tubular member, a porous balloon member surrounding the inner tubular member, and fluid material provided between the inner tubular member and the porous balloon member. The porous balloon member having a plurality of holes of a size to permit medication delivered through a lumen to pass outwardly through the holes. The balloon carries on an outer surface a substantially hydrophilic, tubular microporous membrane covering the holes, to break up streams of flowing medication. Light-reflective material is included in any one of a plurality of the inner member, fluid material, porous balloon member, and microporous membrane in any combination to provide a uniform light illumination for activating treatment fluids located on an elongated treatment site within a living body.
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