Patent ID: 8901248

Claim:
An implantable or insertable medical device comprising a block copolymer that comprises (a) a sulfonated polymer block and (b) fluorinated polymer block, wherein the fluorinated polymer block is a fluorinated elastomeric block selected from a polyvinylidene fluoride block, a polyhexafluoropropylene block, poly(vinylidene fluoride-co-hexafluoropropylene) block, a poly(tetrafluoroethylene-co-perfluoromethyl vinyl ether) block, a poly(vinylidene fluoride-co-chlorotrifluoroethylene) block, a poly(tetrafluoroethylene-co-propylene) block, a poly(vinylidene fluoride-co-hexafluoropropylene-co-tetrafluoroethylene) block, a poly(vinylidene fluoride-co-fluorinated vinyl ether-co-tetrafluoroethylene) block, a poly(vinylidene fluoride-co-propylene-co-tetrafluoroethylene) block, and a poly(vinylidene fluoride-co-fluorinated vinyl ether-co-hexafluoropropylene-co-ethyleneco-tetrafluoroethylene) block, wherein the block copolymer is a triblock copolymer comprising said fluorinated elastomeric block as a mid-block and sulfonated polystyrene blocks as end-blocks.