Patent ID: 9283097
Filing Date: 2016-03-15
CPC Classification: A61F,A61L

Claim Text:
1. A method of making a bioabsorbable poly(L-lactide) (PLLA) stent scaffolding comprising: making a plurality of particles having surface eroding polymer encapsulating L-lactide monomer that is not polymerized or chemically bound to other molecules, wherein the L-lactide monomer is initially shielded by being encapsulated by the surface-eroding polymer that erodes away after a selected induction time to allow for accelerated degradation of the PLLA scaffolding; and making the stent scaffolding from PLLA resin with the plurality of particles dispersed throughout the PLLA of the scaffolding, wherein when the scaffolding is exposed to moisture the surface-eroding polymer prevents contact of the L-lactide with moisture for the selected induction time and after the selected induction time the L-lactide accelerates degradation of the PLLA of the scaffolding.