IUD Arrangement
OwnerSeth T. Shaw, Jr.inventor
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Abstract
An intrauterine device of the type having an external surface contacting the walls of the uterus after insertion therein, and said device having first walls defining a fluid receiving cavity in at least a portion thereof. A concentrated fluid solution of a drug is present in the cavity and the drug is of the type providing an antifertility and antiproteolytic effect and is selected from the group consisting of aromatic monoamidines, aromatic diamidines and non-aromatic diamidines.
Claims32
In an intrauterine device of the type insertable in the uterus and having a surface contacting the uterus and first walls defining a fluid receiving cavity in at least a portion thereof, the improvement comprising, in combination:
- one of a concentrated fluid solution and suspension of a drug in said cavity and said drug of the type providing an antifibrinolytic, an antifertility and an antiproteolytic effect and said drug comprising an amidine;
- and
- said first walls of said intrauterine device comprising a polymer having a predetermined permeability to said drug,
- whereby, said predetermined permeability of said first walls controls the release rate of said drug from said cavity.
In an intrauterine device of the type insertable in the uterus and having a surface contacting the uterus and first walls defining a fluid receiving cavity in at least a portion thereof, the improvement comprising, in combination:
- a drug in said cavity and said drug of the type providing an antifibrinolytic, an antifertility and an antiproteolytic effect and said drug comprising an amidine;
- and
- said walls of said intrauterine device comprising a polymer having a predetermined permeability to said drug,
- whereby, said predetermined permeability of said first walls controls the release rate of said drug from said cavity.
Dependencies are inferred from the claim text.