MULTI-RESERVOIR DEVICE FOR CONTROLLED DRUG DELIVERY
First Claim
1. An implantable device for the controlled release of drug or diagnostic molecules in vivo comprising:
- a substrate formed of a metal or a polyethylene;
a plurality of discrete reservoirs provided in spaced positions in the substrate; and
a release system disposed in the at least two reservoirs, wherein the release system comprises drug or diagnostic molecules combined with a release-controlling polymer matrix, wherein the kinetics of release of the drug or diagnostic molecules is controlled by disintegration of the polymeric matrix or diffusion of the drug through the polymer matrix.
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Abstract
An implantable device for the controlled release of drug or diagnostic molecules in vivo which includes a substrate formed of a metal or a polyethylene, a plurality of discrete reservoirs provided in spaced positions in the substrate, and a release system disposed in the at least two reservoirs, wherein the release system comprises drug or diagnostic molecules combined with a release-controlling polymer matrix, wherein the kinetics of release of the drug or diagnostic molecules is controlled by disintegration of the polymeric matrix. The substrate and reservoirs therein may be made by a manufacturing technique which comprises compression molding, thermoforming, casting, laser cutting, etching, or a combination thereof.
113 Citations
20 Claims
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1. An implantable device for the controlled release of drug or diagnostic molecules in vivo comprising:
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a substrate formed of a metal or a polyethylene;
a plurality of discrete reservoirs provided in spaced positions in the substrate; and
a release system disposed in the at least two reservoirs, wherein the release system comprises drug or diagnostic molecules combined with a release-controlling polymer matrix, wherein the kinetics of release of the drug or diagnostic molecules is controlled by disintegration of the polymeric matrix or diffusion of the drug through the polymer matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable medical device for the controlled delivery of a drug comprising:
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a substrate. an array of discrete reservoirs in the substrate; and
a release system in the reservoirs comprising drug molecules for release and a matrix material which comprises a resorbable biological material selected from the group consisting of fats, lipids, and lipid bilayers, the matrix material disintegrating in vivo to release the drug molecules, wherein the device is formed of or coated with a biocompatible material suitable for implantation into a human or animal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification