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US3863633A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition containing a substance showing a topical effect on the eye, and a method of preparing the same

Assignee: Pfizer Health AB
•
Filing: 1972-05-24
•
Granted: 1975-02-04
•
Expires: 1992-05-24
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Abstract

Abstract A composition containing a substance having a topical effect on the eye, which composition comprises a mixture of 5 - 60 percent of at least one lipophilic substance having a melting point of 37* - 75*C, 5 - 40 percent of at least one water-soluble or water-swellable polymer in solid, finely-divided form, 0.05 - 30 percent of at least one substance having a topical effect on the eye and being in solid, finely-divided form, and 10 - 80 percent of at least one surface active higher alcohol having 12 - 22 carbon atoms to serve as a stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture.

Inventors

  • 👤 Emma Marta Ryde
  • 👤 Jan Erik Ekstedt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 18:59
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0048; A61K9/0051

Claims Analysis

Total Claims: 39
Claim 1
Independent Claim 40 words
CONTRIBUTES TO PREVENTING MECHANICAL IRRITATION OF THE EYE AS A RESULT OF THE SHAPED BODY AND PREVENTS THE BODY FROM REMAINING IN A SPECIFIC POSITION IN THE EYE CAVITY, SINCE IT ENABLES THE UNIT TO CHANGE POSITION WITHIN THE CAVITY.
Claim 2
Dependent Claim 40 words
CONTRIBUTES TO PREVENTING MECHANICAL IRRITATION OF THE EYE AS A RESULT OF THE SHAPED BODY AND PREVENTS THE BODY FROM REMAINING IN A SPECIFIC POSITION IN THE EYE CAVITY, SINCE IT ENABLES THE UNIT TO CHANGE POSITION WITHIN THE CAVITY.
Claim 3
Dependent Claim 19 words
A composition according to claim 1, wherein the aliphatic monoalcohol is 1-tridecanol, 1-hexadecanol, 1-octadecanol or 1-dodecanol or mixtures thereof.
Claim 4
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 5
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 6
Dependent Claim 24 words
FORMS A DIFFUSION BARRIER FOR THE DRUG OR THE DRUGS FOR GLAUCOMA THERAPY AND THEREWITH PREVENT A TOPICAL OVERDOSE WITH SUBSEQUENT ACCOMPANYING IRRITATION, AND
Claim 7
Dependent Claim 24 words
FORMS A DIFFUSION BARRIER FOR THE DRUG OR THE DRUGS FOR GLAUCOMA THERAPY AND THEREWITH PREVENT A TOPICAL OVERDOSE WITH SUBSEQUENT ACCOMPANYING IRRITATION, AND
Claim 8
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 9
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 10
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 11
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 12
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 13
Dependent Claim 23 words
forms a diffusion barrier for the drug or drugs for glaucoma therapy and therewith prevents a topical overdose with subsequent accompanying irritation, and
Claim 14
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 15
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 16
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 17
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 18
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 19
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 20
Dependent Claim 23 words
A composition according to claim 1 wherein the solid shaped body has a largest dimension lying between the limits 2 and 20 mm.
Claim 21
Dependent Claim 17 words
IS FREE FROM DIFFICULTIES WITH VISION CAUSED BY OINTMENT SPREAD TO THE CORNEUS TUNIC OF THE EYE.
Claim 22
Dependent Claim 17 words
IS FREE FROM DIFFICULTIES WITH VISION CAUSED BY OINTMENT SPREAD TO THE CORNEUS TUNIC OF THE EYE.
Claim 23
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 24
Dependent Claim 17 words
is free from difficulties with vision caused by ointment spread to the corneus tunic of the eye.
Claim 25
Dependent Claim 23 words
A composition according to claim 1 wherein the solid shaped body has a largest dimension lying between the limits 6 and 16 mm.
Claim 26
Dependent Claim 18 words
A composition according to claim 1 wherein at least one surface of the solid shaped body is convex.
Claim 27
Dependent Claim 26 words
A composition according to claim 1 wherein the drug for glaucoma therapy comprises pilocarpine, adrenalide, physostigmine or synstigmine or salts thereof, either separately or in combination.
Claim 28
Dependent Claim 22 words
A composition according to claim 1 wherein the substance showing a mydriatic effect is metaoxedrin or atropin or therapeutically acceptable salts thereof.
Claim 29
Dependent Claim 308 words
A composition in the form of a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 10 - 45 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats and mixtures thereof, b. 10 - 30 percent of at least one water-soluble or water-swellable polymer in solid, finely-divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, polyvinyl alcohol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the solid polymer being less than approximately 150 microns. c. 0.5 - 20 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 50 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms to serve as stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with the tear fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit
Claim 30
Dependent Claim 308 words
A composition in the form of a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 10 - 45 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats and mixtures thereof, b. 10 - 30 percent of at least one water-soluble or water-swellable polymer in solid, finely-divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, polyvinyl alcohol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the solid polymer being less than approximately 150 microns. c. 0.5 - 20 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 50 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms to serve as stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with the tear fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit
Claim 31
Dependent Claim 325 words
In the art of medicating the eye with ophthalmic medication the improvement which consists of the step of placing beneath one eyelid a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 5 - 60 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats and mixtures thereof, b. 5 - 40 percent of at least one water-soluble or water-swellable polymer in solid, finely divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, poLyvinyl aclochol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the solid polymer being less than approximately 150 microns, c. 0.05 - 30 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form, with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 80 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms, to serve as stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with the tear fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit
Claim 32
Dependent Claim 325 words
In the art of medicating the eye with ophthalmic medication the improvement which consists of the step of placing beneath one eyelid a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 5 - 60 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats and mixtures thereof, b. 5 - 40 percent of at least one water-soluble or water-swellable polymer in solid, finely divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, poLyvinyl aclochol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the solid polymer being less than approximately 150 microns, c. 0.05 - 30 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form, with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 80 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms, to serve as stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with the tear fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit
Claim 33
Dependent Claim 22 words
Medication according to claim 9 wherein the solid shaped body has a largest dimension lying between the limits 2 and 20 mm.
Claim 34
Dependent Claim 22 words
Medication according to claim 9 wherein the solid shaped body has a largest dimension lying between the limits 6 and 16 mm.
Claim 35
Dependent Claim 17 words
Medication according to claim 9 wherein at least one surface of the solid shaped body is convex.
Claim 36
Dependent Claim 25 words
Medication according to claim 9 wherein the drug for glaucoma theraphy comprises pilocarpine, adrenaline, physostigmine or synstigmine or salts thereof, either separately or in combination.
Claim 37
Dependent Claim 21 words
Medication according to claim 9 wherein the substance showing a mydriatic effect is metaoxedrin or atropin or therapeutically acceptable salts thereof.
Claim 38
Dependent Claim 321 words
In the art of medicating the eye with opthalmic medication the improvement which consists of the step of placing beneath one eyelid a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use, and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 10 - 45 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats or mixtures thereof, b. 10 - 30 percent of at least one water-soluble or waterswellable polymer in solid, finely-divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, polyvinyl alcohol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the polymer being less than approximately 150 microns, c. 0.5 - 20 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form, with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 60 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms, to serve as stabIlizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit
Claim 39
Dependent Claim 321 words
In the art of medicating the eye with opthalmic medication the improvement which consists of the step of placing beneath one eyelid a solid lens-shaped body having at least one curved surface and softly rounded corners which is adapted for insertion into the cavity between the eye and surrounding tissue, said shaped body retaining its shape during the whole time of use, and containing a substance having a topical effect on the eye, which composition comprises a mixture of a. 10 - 45 percent of at least one lipophilic substance having a melting point of 37* - 75*C and being selected from the group consisting of higher hydrocarbons, waxes, fats or mixtures thereof, b. 10 - 30 percent of at least one water-soluble or waterswellable polymer in solid, finely-divided form and being selected from the group consisting of dextran, lower hydroxy-alkyl dextran, carboxymethyl dextran, lower hydroxy-alkyl cellulose, lower alkyl cellulose, carboxy-methyl cellulose, polyvinyl alcohol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols, the particle size of the polymer being less than approximately 150 microns, c. 0.5 - 20 percent of at least one substance having a topical effect on the eye, being in solid, finely-divided form, with a particle size less than approximately 150 microns, and being selected from the group consisting of drugs for glaucoma therapy and substances showing a mydriatic effect, d. 10 - 60 percent of at least one member of the group consisting of aliphatic monoalcohols having 13 - 22 carbon atoms, to serve as stabIlizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture, whereby when said solid shaped body is inserted in an eye cavity and comes into contact with tear fluid, the polymer set forth in (b) which comes into contact with fluid dissolves into a viscous solution or gel-like envelope that acts as a lubricating envelope, which, in cooperation with the shape of the unit

References Cited (Backward Citations)

US108034A Cited
US273410A Cited
US3075527A Cited
US3150045A Cited
US3311577A Cited
US3592930A Cited
US3640741A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-02-03 1978-08-05 1979-02-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-02-03 1982-08-05 1983-02-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-02-03 1986-08-05 1987-02-04 $7700.00 Window Closed / Lapsed

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