Chemically acting intra-uterine device
AssigneeApamed Anstalt
InventorRene Cournut
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Abstract
The invention is directed to an active intrauterine device comprising a hydrophobic substrate of high mechanical resiliency, wherein the substrate including within the volume thereof inclusions of polymerizied hydrophilic substances grafted on the hydrophobic substrate and cross-linked, and in which water-soluble chemical agents have been stored previously, these agents being adapted to perfuse through the hydrophobic substrate when the latter is placed in an aqueous medium.
Claims14
An active intra-uterine device comprising a hydrophobic substrate of high mechanical resiliency, wherein said substrate comprises, within the volume thereof, inclusions of polymerized hydrophilic substances grafted on said hydrophobic substrate and cross-linked, in which water-soluble chemical agents have been stored previously, said hydrophobic substrate being porous so that said agents may perfuse through said hydrophobic substrate when the latter is placed in an aqueous medium.
Dependencies are inferred from the claim text.