Patent 10226533 was granted and assigned to MicroVention on March, 2019 by the United States Patent and Trademark Office.
Polymers are described herein comprising: a reaction product of a prepolymer solution including at least one macromer and at least one visualization agent; and an active agent electrostatically bound to the polymer filament or chemically bound to the at least one monomer; wherein the polymer filament does not include metallic support members.