CN113975226A - 一种醋酸氟孕酮阴道海绵的制备方法 - Google Patents
一种醋酸氟孕酮阴道海绵的制备方法 Download PDFInfo
- Publication number
- CN113975226A CN113975226A CN202111272705.5A CN202111272705A CN113975226A CN 113975226 A CN113975226 A CN 113975226A CN 202111272705 A CN202111272705 A CN 202111272705A CN 113975226 A CN113975226 A CN 113975226A
- Authority
- CN
- China
- Prior art keywords
- acetate
- sponge
- liquid medicine
- filling
- fluoprogesterone
- 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.)
- Granted
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000011049 filling Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- JKQQZJHNUVDHKP-SZMVRVGJSA-N flurogestone acetate Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@]2(F)[C@H]1[C@H]1CC[C@@](C(C)=O)(OC(=O)C)[C@]1(C)C[C@@H]2O JKQQZJHNUVDHKP-SZMVRVGJSA-N 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 229940022663 acetate Drugs 0.000 claims description 64
- 238000003756 stirring Methods 0.000 claims description 21
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims description 18
- QELSKZZBTMNZEB-UHFFFAOYSA-N propylparaben Chemical compound CCCOC(=O)C1=CC=C(O)C=C1 QELSKZZBTMNZEB-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 14
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 14
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 14
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims description 9
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims description 9
- 235000010232 propyl p-hydroxybenzoate Nutrition 0.000 claims description 9
- 239000004405 propyl p-hydroxybenzoate Substances 0.000 claims description 9
- 229960003415 propylparaben Drugs 0.000 claims description 9
- 229960002216 methylparaben Drugs 0.000 claims description 8
- 239000000022 bacteriostatic agent Substances 0.000 claims description 7
- 229940057838 polyethylene glycol 4000 Drugs 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000375 suspending agent Substances 0.000 claims description 6
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 229960003943 hypromellose Drugs 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 229940093429 polyethylene glycol 6000 Drugs 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 239000000829 suppository Substances 0.000 description 15
- 229940079593 drug Drugs 0.000 description 14
- 239000000047 product Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000012173 estrus Effects 0.000 description 10
- 238000009395 breeding Methods 0.000 description 9
- 230000001488 breeding effect Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000012216 screening Methods 0.000 description 9
- 239000000725 suspension Substances 0.000 description 9
- 241001494479 Pecora Species 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000013112 stability test Methods 0.000 description 5
- 210000001215 vagina Anatomy 0.000 description 5
- 239000000273 veterinary drug Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 208000007536 Thrombosis Diseases 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000010923 batch production Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000583 progesterone congener Substances 0.000 description 3
- 239000013558 reference substance Substances 0.000 description 3
- 239000012086 standard solution Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 208000005189 Embolism Diseases 0.000 description 2
- 102000006771 Gonadotropins Human genes 0.000 description 2
- 108010086677 Gonadotropins Proteins 0.000 description 2
- RJKFOVLPORLFTN-LEKSSAKUSA-N Progesterone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 RJKFOVLPORLFTN-LEKSSAKUSA-N 0.000 description 2
- PBCJIPOGFJYBJE-UHFFFAOYSA-N acetonitrile;hydrate Chemical compound O.CC#N PBCJIPOGFJYBJE-UHFFFAOYSA-N 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- -1 etc. Polymers 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000002622 gonadotropin Substances 0.000 description 2
- 235000019580 granularity Nutrition 0.000 description 2
- 239000005556 hormone Substances 0.000 description 2
- 229940088597 hormone Drugs 0.000 description 2
- 230000009027 insemination Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- YTJSFYQNRXLOIC-UHFFFAOYSA-N octadecylsilane Chemical compound CCCCCCCCCCCCCCCCCC[SiH3] YTJSFYQNRXLOIC-UHFFFAOYSA-N 0.000 description 2
- 230000001817 pituitary effect Effects 0.000 description 2
- 235000015277 pork Nutrition 0.000 description 2
- 239000012088 reference solution Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000012430 stability testing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- KKVPWYXKKAIBTN-FDIQSBBYSA-N (8s,9s,10r,13s,14s,17s)-17-acetyl-1-fluoro-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one Chemical compound C1CC2=CC(=O)CC(F)[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 KKVPWYXKKAIBTN-FDIQSBBYSA-N 0.000 description 1
- QFOHBWFCKVYLES-UHFFFAOYSA-N Butylparaben Chemical compound CCCCOC(=O)C1=CC=C(O)C=C1 QFOHBWFCKVYLES-UHFFFAOYSA-N 0.000 description 1
- SAVALVBFHIKAFW-UHFFFAOYSA-N C(CC)[Na].OC1=CC=C(C(=O)O)C=C1 Chemical compound C(CC)[Na].OC1=CC=C(C(=O)O)C=C1 SAVALVBFHIKAFW-UHFFFAOYSA-N 0.000 description 1
- KWVXFMNSHSYIBA-UHFFFAOYSA-N C[Na].OC1=CC=C(C(=O)O)C=C1 Chemical compound C[Na].OC1=CC=C(C(=O)O)C=C1 KWVXFMNSHSYIBA-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- 239000000579 Gonadotropin-Releasing Hormone Substances 0.000 description 1
- 239000004166 Lanolin Substances 0.000 description 1
- BSIWGRBVPYYXSY-UHFFFAOYSA-N OC1=CC=C(C(=O)O)C=C1.C(C)[Na] Chemical compound OC1=CC=C(C(=O)O)C=C1.C(C)[Na] BSIWGRBVPYYXSY-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 101000857870 Squalus acanthias Gonadoliberin Proteins 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229960002798 cetrimide Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229960002152 chlorhexidine acetate Drugs 0.000 description 1
- 229960003333 chlorhexidine gluconate Drugs 0.000 description 1
- YZIYKJHYYHPJIB-UUPCJSQJSA-N chlorhexidine gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O.C1=CC(Cl)=CC=C1NC(=N)NC(=N)NCCCCCCNC(=N)NC(=N)NC1=CC=C(Cl)C=C1 YZIYKJHYYHPJIB-UUPCJSQJSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 238000004090 dissolution Methods 0.000 description 1
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- XLXSAKCOAKORKW-AQJXLSMYSA-N gonadorelin Chemical compound C([C@@H](C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N1[C@@H](CCC1)C(=O)NCC(N)=O)NC(=O)[C@H](CO)NC(=O)[C@H](CC=1C2=CC=CC=C2NC=1)NC(=O)[C@H](CC=1N=CNC=1)NC(=O)[C@H]1NC(=O)CC1)C1=CC=C(O)C=C1 XLXSAKCOAKORKW-AQJXLSMYSA-N 0.000 description 1
- 229940035638 gonadotropin-releasing hormone Drugs 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000002267 hypothalamic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000029849 luteinization Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229960002985 medroxyprogesterone acetate Drugs 0.000 description 1
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000016087 ovulation Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920006316 polyvinylpyrrolidine Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000186 progesterone Substances 0.000 description 1
- 229960003387 progesterone Drugs 0.000 description 1
- MCSINKKTEDDPNK-UHFFFAOYSA-N propyl propionate Chemical compound CCCOC(=O)CC MCSINKKTEDDPNK-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000006216 vaginal suppository Substances 0.000 description 1
- 229940120293 vaginal suppository Drugs 0.000 description 1
- 210000003905 vulva Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/38—Cellulose; Derivatives thereof
-
- 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
-
- 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
- A61K9/02—Suppositories; Bougies; Bases therefor; Ovules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P5/00—Drugs for disorders of the endocrine system
- A61P5/24—Drugs for disorders of the endocrine system of the sex hormones
- A61P5/34—Gestagens
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Reproductive Health (AREA)
- Endocrinology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Urology & Nephrology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gynecology & Obstetrics (AREA)
- Diabetes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Abstract
本发明提供了一种全自动灌装生产的醋酸氟孕酮海绵的方法,所述醋酸氟孕酮阴道海绵由药液和海绵组成,所述药液以水作为溶剂;所述制备方法包括药液配制和灌装步骤。本申请的醋酸氟孕酮海绵生产克服了先前手工生产的诸多弊端,能有效提高制备效率和产品质量。
Description
发明领域
本发明属于兽药技术领域,具体地,本发明提供了一种全自动灌装生产的醋酸氟孕酮海绵的方法。
背景技术
我国是养羊大国,根据国家统计局2020年数据,羊饲养量超过3亿只,但目前养羊产业相关技术发展相对滞后于国外,而养羊产业的发展则需借鉴养猪产业中的相应技术,例如批次化生产技术,即生猪的养殖就类似于工厂生产食品/药品呈现批次化、规模化,这样不仅提高了猪肉品质(食品安全、猪肉质量),也提高了生产效率,也一定程度地减少了资源浪费。同样地,养羊产业也实现批次化生产,其中最关键的一个环节就是羊的繁殖环节,只有呈现批次化繁殖,最终才能实现肉羊的批次化育肥、批次化上市。
在母羊批次化繁殖环节中,目前国内外的主流技术即采用孕激素(醋酸氟孕酮阴道海绵栓、醋酸甲羟孕酮海绵栓、黄体酮阴道缓释剂)进行诱导母羊实现批次化地同期发情,从而批次化定时输精(定时输精)配种,以及批次化分娩,分娩后的母羊批次化断奶,从而重新再使用孕激素进行诱导批次化同期发情,断奶后的小羊则进行批次化育肥,从而实现批次化生产。
醋酸氟孕酮阴道海绵是一种兽用药品,即将一定量的醋酸氟孕酮(一种人工合成的孕激素类似物)加载到聚氨酯海绵中,从而形成最终的产品。该产品主要用于母畜的同期发情。该产品中所用海绵通常为圆柱形,地面直径3-4cm,高度3-6cm。使用这样的产品处理母畜后,海绵内的醋酸氟孕酮在母畜阴道内逐渐缓慢释放,从而发挥药效,其在国内外兽药领域笼统的称为:控制药物内部释放装置(Controlled Internal Drug Releasing)。其作用过程为:“醋酸氟孕酮阴道海绵被置入阴道后,醋酸氟孕酮从海绵(海绵上有大量的孔隙)中缓慢释放出,经阴道粘膜吸收进入体内,使血浆中醋酸氟孕酮浓度保持在正常的有效浓度,通过反馈机制抑制垂体促性腺激素和下丘脑促性腺激素释放激素的分泌,从而抑制发情和排卵,人为地延长黄体期。一旦取出醋酸氟孕酮阴道海绵,醋酸氟孕酮的浓度下降,作用消失,动物的垂体又重新开始分泌促性腺激素,促进卵泡的生长和动物发情。
在母羊的诱导批次化同期发情中使用的醋酸氟孕酮阴道海绵栓属于一种兽药,其目前公开的生产方式均为手工生产,效率低,也无法满足兽药GMP的相关要求。根据专利及文献资料中的信息,传统的醋酸氟孕酮阴道海绵处方较为简单,通常选用有机溶剂,例如乙醇、丙酮,以及油脂类溶剂;然后将醋酸氟孕酮溶于有机溶剂或油脂中,然后将醋酸氟孕酮-有机溶剂药液加注到海绵中,在这个过程中会发生药液渗漏的风险(海绵为聚氨酯或聚醚材质,有机物,为多孔结构,表面分布有大量孔隙,有机溶剂乙醇、丙酮等极易主动渗透穿过海绵),药液渗漏则导致产品含量等关键质量标准不合格(达不到国家标准规定的限度)。
发明内容
为了解决以上问题,申请人设计了可以适应自动化生产的新型醋酸氟孕酮阴道海绵配方并设计了相应制备方法。
一方面,本申请提供了一种全自动灌装生产的醋酸氟孕酮海绵的方法,其特征在于,所述醋酸氟孕酮阴道海绵由药液和海绵组成,所述药液以水作为溶剂;所述制备方法包括药液配制和灌装步骤。
进一步地,所述药液原料包括醋酸氟孕酮、助悬剂、抑菌剂。
进一步地,所述助悬剂为羟丙甲纤维素K100M和聚乙二醇6000。
进一步的,所述药液配制步骤包括:配料罐中加水并保持水浴加热,加入处方量的羟丙甲纤维素K100m,搅拌均匀;加入处方量的聚乙二醇-4000,搅拌均匀;加入处方量的醋酸氟孕酮,搅拌使其混悬均匀;加入剩余的水;继续搅拌至药液稳定恢复到室温。
进一步的,所述药液配制步骤包括:配料罐中加入适量的60℃的水并保持水浴加热,加入处方量的羟丙甲纤维素K100m,搅拌均匀;加入处方量的聚乙二醇-4000,搅拌均匀;加入处方量的醋酸氟孕酮、尼泊金甲酯和尼泊金丙酯,搅拌使其混悬均匀;剩余的30℃的水;继续搅拌至药液稳定恢复到室温;检测并调节药液粘度,应为350-450cps。
进一步的,所述灌装步骤为:将缓冲罐转运至阴道海绵灌注间,调整灌装机装量为;取出已清洗干燥的海绵,将海绵放置于灌装线上,对每个海绵进行灌装加药,将灌装好的海绵立即转运至产品干燥间进行鼓风干燥至恒重。
进一步的,灌装机装量为1.95~2.05ml;干燥温度80±5℃。
进一步地,所述抑菌剂为尼泊金甲酯和尼泊金丙酯。
进一步地,所述醋酸氟孕酮阴道海绵的药液原料配比为醋酸氟孕酮30-50mg、羟丙甲纤维素K100M 20-40mg、聚乙二醇6000 20-80mg、尼泊金甲酯0.5-3mg、尼泊金丙酯0.1-2mg和水0.5-5mL;其中醋酸氟孕酮粒度D90≤100μm。
进一步地,所述醋酸氟孕酮阴道海绵的药液原料配比为醋酸氟孕酮40mg、羟丙甲纤维素K100M 30mg、聚乙二醇6000 50mg、尼泊金甲酯1.5mg、尼泊金丙酯0.5mg和水1.95mL;其中醋酸氟孕酮粒度D90为40-60μm。
本发明中药液以水作为溶剂,加入助悬剂,配制成醋酸氟孕酮混悬液,然后进行灌装到空白海绵栓上。在灌装过程中,药液处于动态搅拌状态下,药液可以准确均匀的灌装到海绵上。海绵栓尽管表明有很多孔隙,但是海绵水不会主动吸水,通常为被动吸水,例如海绵在水里挤压后,很快会完全吸水达到饱和。本发明中药液灌装时,灌装针头插入到海绵内部完成灌装,灌装体积1.9ml-2.1ml;本发明中药液为混悬液,存在一定的粘度,约为400±50cps,因此药液在海绵栓内部流动性较差,从而不会渗漏,当灌装药液的海绵栓相互挤压后,也不会发生泄漏,而是药液充分分布在海绵栓内部孔状空间中。因此,这样的处方可以实现自动化高效灌装生产。
附图说明
图1位本申请的海绵栓实物图。
具体实施方式
实施例1醋酸氟孕酮海绵栓的制备
海绵形状及尺寸:圆柱形聚氨酯海绵;
尺寸:直径3.7cm,高度:3.0cm;
颜色:白色
组成:聚氨酯海绵,醋酸氟孕酮,辅料(混悬剂,防腐剂)
醋酸氟孕酮:主要活性成分,粒度:D90≤100μm,优选40-60μm(以避免溶解或者沉降)
辅料:
助悬剂:选自羟丙甲纤维素,聚乙二醇4000,聚乙二醇6000,聚乙烯吡咯烷酮K60,羊毛脂,甲基纤维素,羧甲纤维素等中的至少一种,本发明优选羟丙甲纤维素K100M和聚乙二醇6000。用量比例方面:羟丙甲纤维素K100m,常规用量0.05%-10%,本发明优选1.5%;聚乙二醇4000,常规用量为0.5%-20%,本发明优选2.5%。
抑菌剂:阴道内给药制剂抑菌剂选自醋酸氯己定,葡萄糖酸氯己定,尼泊金甲酯(钠),尼泊金乙酯(钠),尼泊金丙酯(钠),尼泊金丁酯,西曲溴铵,十二烷基三甲基溴化铵等中的至少一种,本发明优选尼泊金甲酯和尼泊金丙酯。
醋酸氟孕酮药液的配制:
配料罐中加入适量的60℃的水(保持水浴加热),加入处方量的羟丙甲纤维素K100m,搅拌均匀。加入处方量的聚乙二醇-4000,搅拌均匀。加入处方量的抑菌剂,加入处方量的醋酸氟孕酮、尼泊金甲酯和尼泊金丙酯,搅拌使其混悬均匀。最后加入30℃的水至刻度。继续搅拌至药液稳定恢复到室温。检测药液粘度,应为350-450cps。
灌装:
生产前按照《车间生产前检查管理制度》进行检查,确认各岗位都在清场有效期内,并有清场合格证;设备、容器具均已清洁并在有效期内。
将缓冲罐转运至阴道海绵灌注间,调整灌装机装量为1.95~2.05ml之间。取出已清洗干燥的海绵,将海绵放置于灌装线上,对每个海绵进行灌装加药,将灌装好的海绵立即转运至产品干燥间进行鼓风干燥至恒重,干燥温度80±5℃。
生产效率:先前的生产方法每天生产约2000块醋酸氟孕酮海绵栓,现在生产35000-40000块/天。提高17.5倍-20倍。
实施例2处方筛选
处方筛选1
表1处方筛选1-不同辅料组成的醋酸氟孕酮阴道海绵
按照表1不同的醋酸氟孕酮阴道海绵处方组成配制药液,主要从配制药液沉降、灌装时是否从海绵渗漏出情况,以及海绵栓灌装干燥后的释放度(按照实施例5中释放度检测的方法)、含量均匀度等多方面去评价筛选合适的处方。不同辅料组成决定不同的粘度,不同的混悬液效果。
表2处方筛选1中不同醋酸氟孕酮阴道海绵比较
注:*混悬效果中,+代表混悬效果较差,+++代表混悬效果很好,—代表不存在混悬情况。
处方D药液灌装前已变成澄清溶液,灌装到海面上然后干燥后,乙醇挥发,醋酸氟孕酮在海绵中(空隙)发生重结晶,重结晶后的醋酸氟孕酮粒径发生改变,粒径远大于初始原料药粒径,因此在进行释放度测试时,其粒径较大,不易被释放介质溶解释放出来,因此,其释放度更低,未达到释放度限度规定(≥75%)。
处方筛选2
经过处方筛选1,我们筛选出了基本的原辅料及组成比例,在此基础上,我们筛选醋酸氟孕酮原料药粒度,比较不同粒度原料药配制的药液情况,以及比较药液干燥后醋酸氟孕酮阴道海绵中醋酸氟孕酮的含量均匀、释放度(按照实施例5中释放度检测的方法)等指标。(不同粒度则决定这个药物是否可以被混悬起来,粒度太细,药物被溶解,达不到混悬效果;药物粒度太大,不容易混悬起来,容易发生沉降。)
表5处方筛选2-醋酸氟孕酮粒度筛选
表6处方筛选2-中不同处方的醋酸氟孕酮阴道海绵比较
实验例3两种生产方式的每个生产批次的收率比较
表7不同模式生产的醋酸氟孕酮阴道海绵生产效率比较
实施例4采用不同来源的海绵制作醋酸氟孕酮阴道海绵
使用不同来源、不同材质的海绵按照处方A1中的原辅料组成制作醋酸氟孕酮海绵栓。从释放度、含量、含量均匀度等方面进行比较。
表8不同来源的海绵制作醋酸氟孕酮阴道海绵
DG海绵 | HT海绵 | SZ海绵 | |
原辅料组成 | 处方A1 | 处方A1 | 处方A1 |
是否渗漏 | 否 | 否 | 否 |
释放度 | 88% | 87% | 89% |
含量均匀度 | 合格 | 合格 | 合格 |
含量 | 合格 | 合格 | 合格 |
实施例5醋酸氟孕酮阴道海绵药学指标比较
含量检测
检测方法,参照2017版中国兽药质量标准色谱条件与系统适用性试验用十八烷基硅烷键合硅胶为填充剂;以乙腈-水(48:52)为流动相;检测波长为240nm。理论板数按醋酸氟孕酮峰计算不低于2000,醋酸氟孕酮和内标物质峰的分离度应符合要求。
校正因子的测定取己烯雌酚,加甲醇使溶解并稀释制成每1ml中含0.8mg的溶液,摇匀,作为内标溶液。去醋酸氟孕酮对照品约40mg,精密称定,置50ml量瓶中,加甲醇使溶解并稀释至刻度,摇匀;精密量取5ml,置25ml量瓶中,精密加内标溶液5ml,加甲醇稀释至刻度,摇匀;精密量取10μl注入液相色谱仪,计算校正因子。
取本品1个,加甲醇12ml,挤压提取,提取液转移至100ml量瓶中,再用甲醇挤压提取7次,每次10ml,提取液并入量瓶中,用甲醇稀释至刻度,摇匀;滤过,精密量取续滤液10ml置25ml量瓶中,精密加内标溶液5ml,用甲醇稀释至刻度,摇匀;照醋酸氟孕酮含量测定项下的方法,精密量取10μl注入液相色谱仪,并依法测定校正因子,计算,即得。
检测结果
表9醋酸氟孕酮阴道海绵含量检测结果
批号 | 含量检测结果 |
180321 | 99.6% |
180323 | 100.5% |
180325 | 102.1% |
含量均匀度
表10醋酸氟孕酮阴道海绵含量均匀度检测结果
如上表所示,本发明中的产品含量均匀度更好,产品之间标准偏差较小,产品质量更加稳定。
释放度
检测方法
色谱条件用十八烷基硅烷键合硅胶为填充剂;以乙腈-水(48:52)为流动相;检测波长为240nm。理论板数按醋酸氟孕酮峰计算不低于2000。
供试品溶液的制备取醋酸氟孕酮阴道海绵1个,将海绵固定在不锈钢支架上,放入250ml具塞锥形瓶中,加入预热至60℃的水230ml,使海绵全部浸入水中,但不接触瓶壁。将锥形瓶置于预热至60℃恒温振荡器中,调节振荡速度为2.5转/秒。24小时后,取出海绵置于另一250ml锥形瓶中,加入预热至60℃的水230ml,做第二日的释放度。向取出海绵后余下的溶液中加入15ml甲醇,冷却至室温,加水定量稀释至250ml。充分振摇,滤过,续滤液作为供试品溶液测定。
测定法取醋酸氟孕酮对照品适量,精密称定,加乙腈溶解并定量稀释制成每1ml含0.4mg的溶液,精密量取2ml,置50ml量瓶中,加乙腈稀释至刻度,摇匀,作为对照品溶液。精密量取上述对照品溶液和供试品溶液各20μl,注入液相色谱仪,记录色谱图。按外标法以峰面积计算每日释放量。连续测定12日,计算总释放量。限度为标示量的75%,应符合规定。
检测结果
表11释放度检测结果比较
实施例6稳定性试验
按照实施例1中的A2处方,以及生产方法,连续生产三批醋酸氟孕酮阴道海绵,进行稳定性研究。包括加速稳定性试验和长期稳定性试验。
加速稳定性试验(温度40℃±2℃,湿度75%±5%)
表12三批醋酸氟孕酮阴道海绵的加速稳定性试验结果
长期稳定性试验(温度40℃±2℃,湿度60%±10%)
表13三批醋酸氟孕酮阴道海绵的长期稳定性试验结果
实施例7同期发情
选用健康性成熟的空怀母羊60头,分为两组,每组30头。首先,在试验第1天对母羊外阴部擦拭清洗消毒,然后将海绵栓放置到消毒处理放栓器内,将拉线置于放栓器的后端握住,放栓器外涂防腐润滑油,以尖端对着母羊阴户纵轴方向,将外套管沿着母羊阴道纵轴轻轻置入母羊阴道底部,向内缓慢放置,动作轻缓,当遇到阻碍时,固定住外套管使内套芯将阴道栓推入母羊阴道底部.之后拉出外套管,再拉出内套芯。用手术剪刀将阴道栓上多余的牵引线剪除,保留4-5cm。置栓当天为0天,放置13天。置栓期间每天密切关注羊群,如有掉栓应及时补充,另外需关注放栓期间母羊是否出现发情表现。在撤栓前的48h肌肉注射PMSG333单位,撤栓后肌肉注射PG 0.1mg。
试验药物一种为本发明的产品(供试药物,处方A2),对照药物为Chronogest(MSD),PMSG(宁波第二激素厂),PG(宁波第二激素厂)。
表14在母羊上的同期发情结果
在母羊上测试供试药物用于同期发情的效果,结果显示本发明的供试药物与对照药物组效果相当,甚至略优。
Claims (10)
1.一种全自动灌装生产的醋酸氟孕酮海绵的方法,其特征在于,所述醋酸氟孕酮阴道海绵由药液和海绵组成,所述药液以水作为溶剂;所述制备方法包括药液配制和灌装步骤。
2.根据权利要求1所述的方法,所述药液原料包括醋酸氟孕酮、助悬剂、抑菌剂。
3.根据权利要求2所述的方法,所述助悬剂为羟丙甲纤维素K100M和聚乙二醇6000。
4.根据权利要求1-3任一项所述的方法,所述药液配制步骤包括:配料罐中加水并保持水浴加热,加入处方量的羟丙甲纤维素K100m,搅拌均匀;加入处方量的聚乙二醇-4000,搅拌均匀;加入处方量的醋酸氟孕酮、尼泊金甲酯和尼泊金丙酯,搅拌使其混悬均匀;加入剩余的水;继续搅拌至药液稳定恢复到室温。
5.根据权利要求4所述的方法,所述药液配制步骤包括:配料罐中加入适量的60℃的水并保持水浴加热,加入处方量的羟丙甲纤维素K100m,搅拌均匀;加入处方量的聚乙二醇-4000,搅拌均匀;加入处方量的醋酸氟孕酮,搅拌使其混悬均匀;剩余的30℃的水;继续搅拌至药液稳定恢复到室温;检测并调节药液粘度,为350-450cps。
6.根据权利要求1-5任一项所述的方法,所述灌装步骤为:将缓冲罐转运至阴道海绵灌注间,调整灌装机装量为;取出已清洗干燥的海绵,将海绵放置于灌装线上,对每个海绵进行灌装加药,将灌装好的海绵立即转运至产品干燥间进行鼓风干燥至恒重。
7.根据权利要求6所述的方法,灌装机装量为1.95~2.05ml;干燥温度80±5℃。
8.根据权利要求1-7任一项所述的方法,所述抑菌剂为尼泊金甲酯和尼泊金丙酯。
9.根据权利要求8所述的方法,所述醋酸氟孕酮阴道海绵的药液原料配比为醋酸氟孕酮30-50mg、羟丙甲纤维素K100M 20-40mg、聚乙二醇6000 20-80mg、尼泊金甲酯0.5-3mg、尼泊金丙酯0.1-2mg和水0.5-5mL;其中醋酸氟孕酮粒度D90≤100μm。
10.根据权利要求9所述的方法,所述醋酸氟孕酮阴道海绵的药液原料配比为醋酸氟孕酮40mg、羟丙甲纤维素K100M 30mg、聚乙二醇6000 50mg、尼泊金甲酯1.5mg、尼泊金丙酯0.5mg和水1.95mL;其中醋酸氟孕酮粒度D90为40-60μm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111272705.5A CN113975226B (zh) | 2021-10-29 | 2021-10-29 | 一种醋酸氟孕酮阴道海绵的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111272705.5A CN113975226B (zh) | 2021-10-29 | 2021-10-29 | 一种醋酸氟孕酮阴道海绵的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113975226A true CN113975226A (zh) | 2022-01-28 |
CN113975226B CN113975226B (zh) | 2024-02-09 |
Family
ID=79744461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111272705.5A Active CN113975226B (zh) | 2021-10-29 | 2021-10-29 | 一种醋酸氟孕酮阴道海绵的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113975226B (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1281689A (zh) * | 2000-09-04 | 2001-01-31 | 南京农业大学 | 一种用于诱导母羊发情的阴道海绵栓 |
CN103751094A (zh) * | 2013-12-31 | 2014-04-30 | 哈尔滨欧替药业有限公司 | 奥硝唑阴道膨胀栓及其制备方法和检测方法 |
CN112336699A (zh) * | 2019-08-09 | 2021-02-09 | 南京科宁检测科技有限公司 | 一种黄体酮阴道缓释软胶囊及其制备方法 |
-
2021
- 2021-10-29 CN CN202111272705.5A patent/CN113975226B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1281689A (zh) * | 2000-09-04 | 2001-01-31 | 南京农业大学 | 一种用于诱导母羊发情的阴道海绵栓 |
CN103751094A (zh) * | 2013-12-31 | 2014-04-30 | 哈尔滨欧替药业有限公司 | 奥硝唑阴道膨胀栓及其制备方法和检测方法 |
CN112336699A (zh) * | 2019-08-09 | 2021-02-09 | 南京科宁检测科技有限公司 | 一种黄体酮阴道缓释软胶囊及其制备方法 |
Non-Patent Citations (2)
Title |
---|
MOHAN B. KABADI等: "Intravaginal controlled administration of flurogestone acetate II: Development of an in vitro system for studying the intravaginal release and permeation of flurogestone acetate", 《JOUMEL OF PHARMACEUTICAL SCIENCES》, vol. 73, no. 10, pages 1464 - 1468 * |
皮文辉等: "羊用氟孕酮阴道海绵栓的制作及使用效果", 《中国畜牧杂志》, vol. 40, no. 1, pages 41 * |
Also Published As
Publication number | Publication date |
---|---|
CN113975226B (zh) | 2024-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080026035A1 (en) | Method Of Treating Atrophic Vaginitis | |
Madureira et al. | Progesterone-based timed AI protocols for Bos indicus cattle II: reproductive outcomes of either EB or GnRH-type protocol, using or not GnRH at AI | |
US20150087587A1 (en) | Process for the Synchronization of Ovulation for Timed Breeding Without Heat Detection | |
US10376558B2 (en) | Method and compositions for synchronizing time of insemination in gilts | |
EP3389690B1 (en) | Formulations and methods for controlling the reproductive cycle and ovulation | |
US20220117940A1 (en) | Composition for increasing pregnancy rate of ruminants and preparation method and application thereof | |
Iida et al. | A comparative study of induction of estrus and ovulation by three different intravaginal devices in ewes during the non-breeding season | |
US20070197435A1 (en) | Process for the synchronization of ovulation for timed breeding without heat detection | |
Campbell et al. | Ovarian function in ewes made hypogonadal with GnRH antagonist and stimulated with FSH in the presence or absence of low amplitude LH pulses | |
SIMMEN et al. | Estrogen modulation of nuclear matrix-associated steroid hormone binding | |
EP3074031A1 (en) | Method and composition for synchronizing time of insemination in gilts | |
CN113975226A (zh) | 一种醋酸氟孕酮阴道海绵的制备方法 | |
CN113197849A (zh) | 含有葡庚糖酐铁和帕托珠利的混悬注射剂及其制备方法 | |
CN113908114A (zh) | 一种醋酸氟孕酮阴道海绵 | |
CN108992402A (zh) | 阿苯达唑混悬液及其制备方法 | |
CN115192693A (zh) | 一种诱导母猪同期发情的方法 | |
Garcıa et al. | Induction of a new follicular wave in Holstein heifers synchronized with norgestomet | |
CN112121006A (zh) | 一种注射型兽用维生素ade组合物及其制备方法 | |
Abughrien et al. | Ciliogenesis in the uterine tube of control and superovulated heifers | |
Alfradique et al. | The impact of FSH stimulation and age on the ovarian and uterine traits and histomorphometry of prepubertal gilts | |
CN113209016A (zh) | 一种右旋糖酐铁和帕托珠利的混悬注射剂及其制备方法 | |
Killen et al. | Ovarian follicular changes after weaning in sows | |
CN105708804A (zh) | 一种癸氧喹酯干混悬剂及其制备方法 | |
CN116531315B (zh) | 一种卡泊三醇软膏及其制备方法 | |
Madureira | Reproductive outcomes in progesterone-based fixed-time AI protocols in Bos indicus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |