Catheter balloon formed from a polymeric composite
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United States of America Patent
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Sep 6, 1994
Issued Date -
N/A
app pub date -
May 12, 1993
filing date -
Dec 20, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter balloon is provided for medical dilation procedures which is formed from a polymeric composite having an enhanced integrity. The balloon comprises an expandable central body and two tapered termini positioned at opposing ends of the body which are formed from a structural layer of continuous polymeric materials characterized as biaxially oriented in the body, but not in the tapered termini. A layer of an imide-containing polymer is provided external to the structural layer of the tapered termini to coat the termini and strengthen or otherwise enhance the integrity of the termini not having a biaxial orientation. The imide-containing polymer coating may further be continuously extended to the body of the balloon. The imide-containing polymer is applied to the structural layer of the balloon, in a liquid state and heat cured over time to produce a high-integrity coating.
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