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US09248218B2 Poly(L-lactide) stent with tunable degradation rate 有权
具有可调降解速率的聚(L-丙交酯)支架

Poly(L-lactide) stent with tunable degradation rate
Abstract:
Methods of making a biodegradable polymeric stent made from poly(L-lactide) and a low concentration of L-lactide monomer is disclosed. The concentration of L-lactide is adjusted to provide a degradation behavior that is suitable for different treatment applications including coronary, peripheral, and nasal. Methods include making a poly(L-lactide) material for a stent with uniformly distributed L-lactide monomer through control of polymerization conditions during PLLA synthesis, control of post-processing conditions, or both.
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