Rubber toughened bioresorbable polymer peripheral scaffolds

Abstract

Bioabsorbable scaffolds are disclosed with a rigid polymer component and a rubbery polymer component. The rubbery polymer component is miscible, partially miscible, or immiscible with the rigid polymer component.

What is claimed is: 
     
         1 . A stent comprising a scaffold formed from a polymer tube
 configured for being crimped to a balloon,   the scaffold having a pattern of interconnected elements and   the scaffold having an expanded diameter when expanded from a crimped state by the balloon,   wherein the scaffold attains greater than about 80% of its diameter after being crushed to at least 50% of its expanded diameter; and   wherein the scaffold has a radial stiffness greater than 0.3 N/mm and   wherein the scaffold is made from a composition including a rigid bioresorbable polymer component having a glass transition temperature (Tg) greater than 37 deg C. and a rubbery polymer component having a Tg less than ambient temperature, wherein the rubbery polymer component is between 5 and 25 wt % of the composition.