Medicament incorporation matrix
First Claim
1. A coating composition for use in delivering a medicament from the surface of a medical device positioned in vivo, the composition comprising a polymeric reagent formed by the polymerization of the following monomers:
- a) about 1 to about 20 mole % of a polyether monomer,b) about 5 to about 75 mole % of a carboxylic acid-containing monomer, such that the effective ratio of ether groups to carboxylic acid groups in the resultant copolymer is between about 1 to 1 and about 10 to 1, andc) an amount of a hydrophilic monomer suitable to bring the composition to 100%.
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Abstract
A coating composition, in both its uncrosslinked and crosslinked forms, for use in delivering a medicament from the surface of a medical device positioned in vivo. Once crosslinked, the coating composition provides a gel matrix adapted to contain the medicament in a form that permits the medicament to be released from the matrix in a prolonged, controlled, predictable and effective manner in vivo. A composition includes a polyether monomer, such as an alkoxy poly(alkylene glycol), a carboxylic acid-containing monomer, such as (meth)acrylic acid, a photoderivatized monomer, and a hydrophilic monomer such as acrylamide.
89 Citations
49 Claims
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1. A coating composition for use in delivering a medicament from the surface of a medical device positioned in vivo, the composition comprising a polymeric reagent formed by the polymerization of the following monomers:
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a) about 1 to about 20 mole % of a polyether monomer, b) about 5 to about 75 mole % of a carboxylic acid-containing monomer, such that the effective ratio of ether groups to carboxylic acid groups in the resultant copolymer is between about 1 to 1 and about 10 to 1, and c) an amount of a hydrophilic monomer suitable to bring the composition to 100%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 41, 42, 43, 44, 49)
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21. A crosslinked coating composition for use in delivering a medicament from the surface of a medical device positioned in vivo, the composition comprising a polymeric reagent in the form of a gel matrix, the polymeric reagent being formed by the polymerization of the following monomers:
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a) about 1 to about 20 mole % of a polyether monomer, b) about 5 to about 75 mole % of a carboxylic acid-containing monomer, such that the effective ratio of ether groups to carboxylic acid groups in the resultant copolymer is between about 1 to 1 and about 10 to 1, c) about 0.1 to about 10 mole % of the residue of a photoderivatized monomer, and d) an amount of a hydrophilic monomer suitable to bring the composition to 100%. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 45, 46, 47, 48)
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Specification