Patent ID: 7425600

Claim:
A biomedical device comprising a polymerization product of a monomeric mixture comprising one or more first monomers of the general formula: A-L-R 1 —(X—CF═CF 2 ) n wherein R 1 represents one or more inertly substituted groups; X is independently a group which links the inertly substituted groups and the trifluorovinyl group; L is an optional linking group and is independently a straight or branched C 1 -C 30 alkyl group, a C 3 to C 30 cycloalkyl group, a C 5 -C 30 aryl group, an ether group, a C 1 -C 20 ester group, an amide group, a siloxanyl, an arylsiloxanyl or a fluorosiloxanyl; A is CO 2 Z, SO 2 Z, PO 3 Z, or OPO 3 Z wherein Z is hydrogen or an alkali metal and n is an integer from 1 to about 1000.