DE2657782A1 - Einrichtung fuer kontrollierte freigabe von materialien - Google Patents
Einrichtung fuer kontrollierte freigabe von materialienInfo
- Publication number
- DE2657782A1 DE2657782A1 DE19762657782 DE2657782A DE2657782A1 DE 2657782 A1 DE2657782 A1 DE 2657782A1 DE 19762657782 DE19762657782 DE 19762657782 DE 2657782 A DE2657782 A DE 2657782A DE 2657782 A1 DE2657782 A1 DE 2657782A1
- Authority
- DE
- Germany
- Prior art keywords
- agent
- active
- container
- solution
- membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000013270 controlled release Methods 0.000 title description 41
- 239000000463 material Substances 0.000 title description 22
- 239000004094 surface-active agent Substances 0.000 claims description 93
- 239000012528 membrane Substances 0.000 claims description 53
- 239000003795 chemical substances by application Substances 0.000 claims description 43
- 239000000178 monomer Substances 0.000 claims description 29
- 229920002678 cellulose Polymers 0.000 claims description 18
- 239000001913 cellulose Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000934 spermatocidal agent Substances 0.000 claims description 15
- 239000012982 microporous membrane Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 13
- 239000013543 active substance Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- -1 aliphatic alcohols Chemical class 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 7
- 239000000693 micelle Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002736 nonionic surfactant Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000003054 hormonal effect Effects 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 229930186147 Cephalosporin Natural products 0.000 claims description 2
- 229930182555 Penicillin Natural products 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004098 Tetracycline Substances 0.000 claims description 2
- 239000012867 bioactive agent Substances 0.000 claims description 2
- 229940124587 cephalosporin Drugs 0.000 claims description 2
- 150000001780 cephalosporins Chemical class 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 150000002960 penicillins Chemical class 0.000 claims description 2
- 229940041022 streptomycins Drugs 0.000 claims description 2
- 235000019364 tetracycline Nutrition 0.000 claims description 2
- 150000003522 tetracyclines Chemical class 0.000 claims description 2
- 229940040944 tetracyclines Drugs 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 1
- 230000003115 biocidal effect Effects 0.000 claims 1
- 230000002599 biostatic effect Effects 0.000 claims 1
- 235000019365 chlortetracycline Nutrition 0.000 claims 1
- 238000013267 controlled drug release Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 26
- 239000012729 immediate-release (IR) formulation Substances 0.000 description 21
- 239000003433 contraceptive agent Substances 0.000 description 18
- 230000032258 transport Effects 0.000 description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 230000002254 contraceptive effect Effects 0.000 description 11
- 239000011148 porous material Substances 0.000 description 11
- 210000001215 vagina Anatomy 0.000 description 11
- 229920002301 cellulose acetate Polymers 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- 235000002639 sodium chloride Nutrition 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 230000008901 benefit Effects 0.000 description 8
- 229940124558 contraceptive agent Drugs 0.000 description 8
- 230000003111 delayed effect Effects 0.000 description 8
- 229940079593 drug Drugs 0.000 description 8
- 230000003204 osmotic effect Effects 0.000 description 8
- 239000010839 body fluid Substances 0.000 description 7
- 210000001124 body fluid Anatomy 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000001150 spermicidal effect Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000003242 anti bacterial agent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000003821 menstrual periods Effects 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 239000008293 association colloid Substances 0.000 description 3
- 230000004071 biological effect Effects 0.000 description 3
- 230000008512 biological response Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000013268 sustained release Methods 0.000 description 3
- 239000012730 sustained-release form Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 229940088710 antibiotic agent Drugs 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000006196 deacetylation Effects 0.000 description 2
- 238000003381 deacetylation reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229940088597 hormone Drugs 0.000 description 2
- 239000005556 hormone Substances 0.000 description 2
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003641 microbiacidal effect Effects 0.000 description 2
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- FUFLCEKSBBHCMO-UHFFFAOYSA-N 11-dehydrocorticosterone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)C(=O)CO)C4C3CCC2=C1 FUFLCEKSBBHCMO-UHFFFAOYSA-N 0.000 description 1
- XXPRRHYTDCWGRP-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-(4-nonylphenoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CCCCCCCCCC1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 XXPRRHYTDCWGRP-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- MFYSYFVPBJMHGN-ZPOLXVRWSA-N Cortisone Chemical compound O=C1CC[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 MFYSYFVPBJMHGN-ZPOLXVRWSA-N 0.000 description 1
- MFYSYFVPBJMHGN-UHFFFAOYSA-N Cortisone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)(O)C(=O)CO)C4C3CCC2=C1 MFYSYFVPBJMHGN-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 244000062730 Melissa officinalis Species 0.000 description 1
- 235000010654 Melissa officinalis Nutrition 0.000 description 1
- QWZLBLDNRUUYQI-UHFFFAOYSA-M Methylbenzethonium chloride Chemical compound [Cl-].CC1=CC(C(C)(C)CC(C)(C)C)=CC=C1OCCOCC[N+](C)(C)CC1=CC=CC=C1 QWZLBLDNRUUYQI-UHFFFAOYSA-M 0.000 description 1
- YYVFXSYQSOZCOQ-UHFFFAOYSA-N Oxyquinoline sulfate Chemical compound [O-]S([O-])(=O)=O.C1=C[NH+]=C2C(O)=CC=CC2=C1.C1=C[NH+]=C2C(O)=CC=CC2=C1 YYVFXSYQSOZCOQ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 108010040201 Polymyxins Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 229960001950 benzethonium chloride Drugs 0.000 description 1
- UREZNYTWGJKWBI-UHFFFAOYSA-M benzethonium chloride Chemical compound [Cl-].C1=CC(C(C)(C)CC(C)(C)C)=CC=C1OCCOCC[N+](C)(C)CC1=CC=CC=C1 UREZNYTWGJKWBI-UHFFFAOYSA-M 0.000 description 1
- 239000013060 biological fluid Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 210000003756 cervix mucus Anatomy 0.000 description 1
- 229960005091 chloramphenicol Drugs 0.000 description 1
- WIIZWVCIJKGZOK-RKDXNWHRSA-N chloramphenicol Chemical compound ClC(Cl)C(=O)N[C@H](CO)[C@H](O)C1=CC=C([N+]([O-])=O)C=C1 WIIZWVCIJKGZOK-RKDXNWHRSA-N 0.000 description 1
- ZPEIMTDSQAKGNT-UHFFFAOYSA-N chlorpromazine Chemical compound C1=C(Cl)C=C2N(CCCN(C)C)C3=CC=CC=C3SC2=C1 ZPEIMTDSQAKGNT-UHFFFAOYSA-N 0.000 description 1
- 229960001076 chlorpromazine Drugs 0.000 description 1
- 229940110456 cocoa butter Drugs 0.000 description 1
- 235000019868 cocoa butter Nutrition 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229960004544 cortisone Drugs 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000850 deacetylating effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- RGLYKWWBQGJZGM-ISLYRVAYSA-N diethylstilbestrol Chemical compound C=1C=C(O)C=CC=1C(/CC)=C(\CC)C1=CC=C(O)C=C1 RGLYKWWBQGJZGM-ISLYRVAYSA-N 0.000 description 1
- 229960000452 diethylstilbestrol Drugs 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940011871 estrogen Drugs 0.000 description 1
- 239000000262 estrogen Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229940043075 fluocinolone Drugs 0.000 description 1
- FEBLZLNTKCEFIT-VSXGLTOVSA-N fluocinolone acetonide Chemical compound C1([C@@H](F)C2)=CC(=O)C=C[C@]1(C)[C@]1(F)[C@@H]2[C@@H]2C[C@H]3OC(C)(C)O[C@@]3(C(=O)CO)[C@@]2(C)C[C@@H]1O FEBLZLNTKCEFIT-VSXGLTOVSA-N 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229960000890 hydrocortisone Drugs 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000000865 liniment Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229960002285 methylbenzethonium chloride Drugs 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000037125 natural defense Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 229960001257 oxyquinoline sulfate Drugs 0.000 description 1
- 229940094443 oxytocics prostaglandins Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229940041153 polymyxins Drugs 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229960005205 prednisolone Drugs 0.000 description 1
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003180 prostaglandins Chemical class 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003345 scintillation counting Methods 0.000 description 1
- 230000009049 secondary transport Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940083542 sodium Drugs 0.000 description 1
- XETSAYZRDCRPJY-UHFFFAOYSA-M sodium;4-aminobenzoate Chemical compound [Na+].NC1=CC=C(C([O-])=O)C=C1 XETSAYZRDCRPJY-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229960005294 triamcinolone Drugs 0.000 description 1
- GFNANZIMVAIWHM-OBYCQNJPSA-N triamcinolone Chemical compound O=C1C=C[C@]2(C)[C@@]3(F)[C@@H](O)C[C@](C)([C@@]([C@H](O)C4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 GFNANZIMVAIWHM-OBYCQNJPSA-N 0.000 description 1
- GAAKLDANOSASAM-UHFFFAOYSA-N undec-10-enoic acid;zinc Chemical compound [Zn].OC(=O)CCCCCCCCC=C GAAKLDANOSASAM-UHFFFAOYSA-N 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229940118257 zinc undecylenate Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
- A61K9/009—Sachets, pouches characterised by the material or function of the envelope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
- A61F6/06—Contraceptive devices; Pessaries; Applicators therefor for use by females
- A61F6/08—Pessaries, i.e. devices worn in the vagina to support the uterus, remedy a malposition or prevent conception, e.g. combined with devices protecting against contagion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0034—Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
- A61K9/0036—Devices retained in the vagina or cervix for a prolonged period, e.g. intravaginal rings, medicated tampons, medicated diaphragms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
- A61K9/0092—Hollow drug-filled fibres, tubes of the core-shell type, coated fibres, coated rods, microtubules or nanotubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
- A61M31/002—Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Reproductive Health (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Urology & Nephrology (AREA)
- Gynecology & Obstetrics (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Nanotechnology (AREA)
- Medicinal Preparation (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/638,775 US4031202A (en) | 1975-12-08 | 1975-12-08 | Controlled release contraceptive article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2657782A1 true DE2657782A1 (de) | 1978-06-29 |
Family
ID=24561370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762657782 Withdrawn DE2657782A1 (de) | 1975-12-08 | 1976-12-21 | Einrichtung fuer kontrollierte freigabe von materialien |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4031202A (enExample) |
| JP (1) | JPS52105207A (enExample) |
| CA (1) | CA1076478A (enExample) |
| DE (1) | DE2657782A1 (enExample) |
| FR (1) | FR2374900A1 (enExample) |
| GB (1) | GB1561645A (enExample) |
| NL (1) | NL7614327A (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA761193B (en) * | 1975-03-19 | 1977-02-23 | Procter & Gamble | Controlled release articles |
| US4145408A (en) * | 1976-08-16 | 1979-03-20 | The Procter & Gamble Company | Controlled release article |
| US4219016A (en) * | 1978-12-07 | 1980-08-26 | The Procter & Gamble Company | Vaginal contraceptive |
| EP0009518B1 (en) * | 1978-10-04 | 1983-07-06 | THE PROCTER & GAMBLE COMPANY | Vaginal contraceptive device |
| US4200090A (en) * | 1979-01-15 | 1980-04-29 | The Procter & Gamble Company | Vaginal contraceptive and method of using |
| US4341728A (en) * | 1979-12-20 | 1982-07-27 | The Population Council, Inc. | Method for making an IUD with shrinking of a medicated attachment onto a support |
| US4304226A (en) * | 1980-03-03 | 1981-12-08 | The Procter & Gamble Company | Vaginal contraceptive |
| HU186134B (en) * | 1982-10-07 | 1985-06-28 | Andras Kovacs | Process for the production of contraceptive suppository tablets |
| US4563184A (en) * | 1983-10-17 | 1986-01-07 | Bernard Korol | Synthetic resin wound dressing and method of treatment using same |
| US4576817A (en) * | 1984-06-07 | 1986-03-18 | Laclede Professional Products, Inc. | Enzymatic bandages and pads |
| US4707362A (en) * | 1985-02-15 | 1987-11-17 | Biotek, Inc. | Sustained release composition |
| NL8600250A (nl) * | 1986-02-01 | 1987-09-01 | Fundatech Sa | Vaginaal anticonceptiemiddel. |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2777796A (en) * | 1951-11-30 | 1957-01-15 | Nathaniel M Elias | Spermicidal composition |
| US3108043A (en) * | 1960-05-09 | 1963-10-22 | Ortho Pharma Corp | Spermicidal sheet-like material |
| GB1021924A (en) * | 1962-06-22 | 1966-03-09 | Smith Kline French Lab | Improvements in or relating to method of preparing sustained release tablets |
| FR1462161A (fr) * | 1963-06-14 | 1966-04-15 | Crookes Lab Ltd | Procédé de fabrication de suppositoires |
| US3777015A (en) * | 1970-01-19 | 1973-12-04 | Alza Corp | Device for suppressing fertility |
| US3760805A (en) * | 1971-01-13 | 1973-09-25 | Alza Corp | Osmotic dispenser with collapsible supply container |
| US3760984A (en) * | 1971-09-29 | 1973-09-25 | Alza Corp | Osmotically powered agent dispensing device with filling means |
| BE789524A (fr) * | 1971-09-30 | 1973-01-15 | Alza Corp | Dispositif de liberation de medicaments |
| US3948254A (en) * | 1971-11-08 | 1976-04-06 | Alza Corporation | Novel drug delivery device |
| US3845770A (en) * | 1972-06-05 | 1974-11-05 | Alza Corp | Osmatic dispensing device for releasing beneficial agent |
| ZA761193B (en) * | 1975-03-19 | 1977-02-23 | Procter & Gamble | Controlled release articles |
-
1975
- 1975-12-08 US US05/638,775 patent/US4031202A/en not_active Expired - Lifetime
-
1976
- 1976-12-03 CA CA267,081A patent/CA1076478A/en not_active Expired
- 1976-12-08 JP JP14758176A patent/JPS52105207A/ja active Pending
- 1976-12-08 GB GB51205/76A patent/GB1561645A/en not_active Expired
- 1976-12-21 DE DE19762657782 patent/DE2657782A1/de not_active Withdrawn
- 1976-12-23 NL NL7614327A patent/NL7614327A/xx not_active Application Discontinuation
- 1976-12-27 FR FR7639196A patent/FR2374900A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4031202A (en) | 1977-06-21 |
| GB1561645A (en) | 1980-02-27 |
| JPS52105207A (en) | 1977-09-03 |
| CA1076478A (en) | 1980-04-29 |
| FR2374900B1 (enExample) | 1979-04-13 |
| NL7614327A (nl) | 1978-06-27 |
| FR2374900A1 (fr) | 1978-07-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8139 | Disposal/non-payment of the annual fee |