Dilatation catheter balloon made from pen based homopolymer or random copolymer
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United States of America Patent
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Mar 19, 2002
Grant Date -
N/A
app pub date -
Sep 10, 1997
filing date -
Sep 10, 1997
priority date (Note) -
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Abstract
A balloon for a medical device has a structural layer of a highly crystallized PEN polymer material. The PEN polymer material being a polyethylene naphthalate homopolymer or a crystallizable copolyester made up of residues of ethylene glycol, naphthalene dicarboxylic acid (NDC) and at least one member of the group (PA) consisting of terephthalic acid and isophthalic acid. The NDC groups make up about 5% or more of the sum of NDC and PA groups in the copolymer. The balloon is characterized by an ability to withstand a hoop stress of at least 35,000 psi without bursting.
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