Patent ID: 8034874

Claim:
An implantable or insertable medical device comprising a polymeric region that comprises a fluorocarbon-containing block copolymer, said fluorocarbon-containing a block copolymer comprising (a) a main chain comprising a fluorocarbon-containing, low T g copolymer chain and (b) a plurality of side chains comprising high T g polymer chains wherein: (i) the low T g copolymer chain is selected from (a) a copolymer chain comprising vinylidene fluoride and hexafluoropropylene, (b) a copolymer chain comprising vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene, (c) a copolymer chain comprising vinylidene fluoride, tetrafluoroethylene and fluorinated vinyl ether, (d) a copolymer chain comprising tetrafluoroethylene and ethylene, (e) a copolymer chain comprising tetrafluoroethylene, ethylene and vinylidene fluoride, (f) a copolymer chain comprising tetrafluoroethylene and perfluoromethylvinyl ether, and (g) a copolymer chain comprising tetrafluoroethylene and perfluoropropoxypropylvinyl ether; and (ii) the high T g polymer chain comprises a member selected from a styrenic monomer selected from styrene, α-methyl styrene, ring-alkylated styrenes, ring-alkoxylated styrenes, ring-halogenated styrenes, ring-hydroxylated styrenes, ring-ester-substituted styrenes and combinations of the foregoing.