Patent ID: 8889170

Claim:
An implantable device comprising a coating deposited thereon, the coating comprising a PLGA-PEG-PLGA triblock copolymer; wherein PLGA in the PLGA-PEG-PLGA triblock copolymer is a block of poly (D,L-lactide-co-glycolide) and PEG in the PLGA-PEG-PLGA triblock copolymer is a block of poly(ethylene glycol); wherein the PLGA-PEG-PLGA triblock copolymer has a weight average molecular weight (Mw) from about 50KD to about 200KD and comprises: a molar ratio of D,L-lactide to glycolide of 5:1 to 3:2; and a content of PEG of about 30% or about 40% by weight; and wherein the PLGA-PEG-PLGA triblock copolymer breaks into fragments upon exposure of the coating to a physiological environment.