Patent ID: 8207240

Claim:
A method of fabricating a bioabsorbable polymer stent comprising: exposing a stent to a dose of e-beam radiation between 20-30 kGy, the stent comprises a bioabsorbable stent scaffolding, wherein the stent scaffolding comprises a polymer formulation comprising poly(L-lactide) and polymandelide, the polymandelide reducing the molecular weight reduction of the poly(L-lactide) due to the exposure, and wherein a weight average molecular weight of the poly(L-lactide) decreases by less than 30% due to the exposure, wherein the polymer formulation comprises a blend of poly(L-lactide) and the polymandelide, wherein prior to the exposure, the poly(L-lactide) has a weight average molecular weight of between 300-600 kg/mol and the polymandelide has a weight average molecular weight between 50-500 kg/mol, and wherein the scaffolding comprises between 2-5 wt % the polymandelide.