Patent ID: 8889823

Claim:
A method of fabricating a stent comprising: making PLLA polymer material having an LLA monomer content of greater than 4 wt % with a polymerization reaction of LLA monomers, wherein the polymerization reaction comprises two steps, wherein in a first step the polymerization reaction is performed at a reaction temperature less than 160° C. for a first period of time to obtain a PLLA material of the first step and, wherein in a second step the polymerization reaction of the PLLA material of the first step is performed at a temperature between 180-200° C. to obtain the PLLA polymer material having the LLA monomer content of more than 4 wt %, processing the PLLA polymer material to extract some of the LLA monomer to reduce the LLA monomer content to no more than 2 wt %; and making a polymeric stent body from the processed PLLA polymer material.