Patent ID: 6358227
Filing Date: 2002-03-19
Classification: A61L,A61M,Y10T

Abstract:
A balloon for a medical device comprising a structural layer of a PEN polymer material,the PEN polymer material being a) a polyethylene naphthalate homopolymer or b) a crystallizable copolyester comprising residues of i) ethylene glycol, ii) naphthalene dicarboxylic acid and iii) at least one PA residue, said PA residue being a member of the group consisting of residues of terephthalic acid and isophthalic acid, the naphthalene dicarboxylic acid residues comprising about 5% or more of the sum of naphthalene dicarboxylic acid residues and PA residues in the copolyester, and, the balloon characterized by an ability to withstand a hoop stress of at least 50,000 psi without bursting.