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US 6,162,393 AGranted
Contact lens and ophthalmic solutions
AssigneeNDT, Inc.
InventorsChris De Bruiju, F. Richard Christ, Anthony J. Dziabo, Joseph Vigh
Life of this patent
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AssigneeNDT, Inc.
InventorsChris De Bruiju, F. Richard Christ, Anthony J. Dziabo, Joseph Vigh
Estimating the term…
Benzyldimethyl {2-[2-(p-1,1,3,3-tetramethylbutylphenoxy)ethoxy]ethyl} ammonium chloride (BDT) forms the basis of contact lens solutions that are unusually effective at reducing the number and wide variety of pathogenic microorganisms that may infect rigid gas permeable or soft contact lenses. Furthermore, it has been discovered that natural occurring compounds alone and in combination with chemical agents can be used in ophthalmic solutions such as contact lens solution to enhance and complement their anti-microbial, cleaning and wetting activity or to reduce irritation to the eye. The basic contact lens solution comprises an effective concentration of BDT (preferably 1 to 100 parts per million), with naturally occurring plant products possessing activities complementary to BDT, in an isotonic diluent buffered with a physiologically acceptable buffer to a physiologically natural range.
A contact lens solution containing a microbicidal concentration of Benzyldimethyl {2-[2-(p-1,1,3,3-tetramethylbutylphenoxy) ethoxy]ethyl} ammonium chloride.
A hydrogen peroxide-free ophthalmic solution comprised of between 10 and 10,000 parts per million of a naturally-occurring microbicidal compound selected from the group consisting of allicin, aucubin, berberine, bilberry extract, caffeic acid, chlorogenic acid, echinacea extract, ferulic acid, hydrastine, lipoic acid, naringin, oleuropein, proanthocyanidins, quercetin, and rutin.
A contact lens solution comprising:
A contact lens solution comprising:
A contact lens cleaning solution comprising between 0.01% and 2.5% saponins as cleaning agents.
A contact lens cleaning solution comprising a naturally-occurring microbicidal compound selected from the group consisting of berberine, caffeic acid, and chlorogenic acid, and a borate buffer.
A method for cleaning and disinfecting contact lenses comprising the steps of:
A method for cleaning and disinfecting contact lenses comprising the steps of:
An ophthalmic solution comprising between 10 and 10,000 parts per million of a naturally-occurring microbicidal compound selected from the group consisting of allantoin, allicin, aucubin, berberine, bilberry extract, caffeic acid, chlorogenic acid, echinacea extract, ferulic acid, hydrastine, lipoic acid, naringin, oleuropein, proanthocyanidins, quercetin, and rutin, and further comprising a saponin as a wetting agent.
Dependencies are inferred from the claim text.