Polymer compositions for intraluminal stent
AssigneeQuanam Medical Corporation
InventorsAngelica Alvarado, Robert Eury, Irina D. Pomerantseva, Michael Froix
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Abstract
A polymer composition for use in forming a stent is described. The composition includes a monomer of an aliphatic ester of acrylic acid which has a glass transition temperature less than 25° C. and a second monomer that copolymerizes with the first monomer and which has a glass transition temperature greater than 25° C. The components in the composition are mixed in amounts suitable to give a copolymer having a glass transition temperature less than 25° C., or in case of block copolymers, having at least one glass transition temperature less than 25° C. A stent including polymer members formed from the described composition is also disclosed.
Claims10
A stent for insertion into a vessel comprising a composition comprising
- between 10–98% of a first monomer composed of an aliphatic ester C1–C50 of acrylic acid which when homopolymerized has a glass transition temperature lower than about 25° C., wherein the first monomer is fluorinated;
- and
- a second monomer having sites of unsaturation and capable of copolymerization with the first monomer, the second monomer when homopolymerized having a glass transition temperature greater than 25° C.,
- wherein the monomers when polymerized in the presence of a crosslinker forming a polymer have a glass transition temperature of less than about 25° C.
Dependencies are inferred from the claim text.