WO2015003661A1 - 一种中药微滴丸的制备方法以及由所述方法制得的中药微滴丸 - Google Patents

一种中药微滴丸的制备方法以及由所述方法制得的中药微滴丸 Download PDF

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Publication number
WO2015003661A1
WO2015003661A1 PCT/CN2014/082104 CN2014082104W WO2015003661A1 WO 2015003661 A1 WO2015003661 A1 WO 2015003661A1 CN 2014082104 W CN2014082104 W CN 2014082104W WO 2015003661 A1 WO2015003661 A1 WO 2015003661A1
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WO
WIPO (PCT)
Prior art keywords
dropping
micro
pills
preparation
temperature
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Application number
PCT/CN2014/082104
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English (en)
French (fr)
Inventor
闫希军
吴迺峰
闫凯境
孙小兵
章顺楠
叶正良
董海鸥
张洪波
张文生
周立红
李晨鸣
陈聪
刘晓峰
王世庆
荣昌盛
郑永锋
范立君
Original Assignee
天士力制药集团股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
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Priority claimed from CN201310291465.2A external-priority patent/CN104274416B/zh
Priority claimed from CN201310290967.3A external-priority patent/CN104274517B/zh
Priority claimed from CN201310290966.9A external-priority patent/CN104274319A/zh
Priority to ES14823013T priority Critical patent/ES2869918T3/es
Priority to EA201690209A priority patent/EA034240B1/ru
Priority to JP2016524678A priority patent/JP6371841B2/ja
Priority to DK14823013.9T priority patent/DK3020395T3/da
Priority to KR1020167002666A priority patent/KR102342819B1/ko
Application filed by 天士力制药集团股份有限公司 filed Critical 天士力制药集团股份有限公司
Priority to US14/903,896 priority patent/US20160151293A1/en
Priority to MX2015017651A priority patent/MX2015017651A/es
Priority to EP14823013.9A priority patent/EP3020395B1/en
Priority to AU2014289765A priority patent/AU2014289765B2/en
Priority to CA2916423A priority patent/CA2916423C/en
Priority to UAA201601130A priority patent/UA119750C2/uk
Publication of WO2015003661A1 publication Critical patent/WO2015003661A1/zh
Priority to HK16109282.0A priority patent/HK1221156A1/zh
Priority to US16/422,857 priority patent/US11013694B2/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS 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
    • A61J3/00Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
    • A61J3/06Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of pills, lozenges or dragees
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/25Araliaceae (Ginseng family), e.g. ivy, aralia, schefflera or tetrapanax
    • A61K36/258Panax (ginseng)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/48Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/48Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
    • A61K36/481Astragalus (milkvetch)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/53Lamiaceae or Labiatae (Mint family), e.g. thyme, rosemary or lavender
    • A61K36/537Salvia (sage)
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605Excipients; Inactive ingredients
    • A61K9/1629Organic macromolecular compounds
    • A61K9/1641Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
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    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1682Processes
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    • A61K9/2031Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
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    • A61K9/2022Organic macromolecular compounds
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    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/2059Starch, including chemically or physically modified derivatives; Amylose; Amylopectin; Dextrin
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    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/2095Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • A61K9/2833Organic macromolecular compounds
    • A61K9/284Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
    • A61K9/2846Poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
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    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
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    • A61K9/2833Organic macromolecular compounds
    • A61K9/286Polysaccharides, e.g. gums; Cyclodextrin
    • A61K9/2866Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • A61K9/288Compounds of unknown constitution, e.g. material from plants or animals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
    • A61K9/5015Organic compounds, e.g. fats, sugars
    • AHUMAN NECESSITIES
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    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
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    • A61K9/5026Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
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    • A61K9/5005Wall or coating material
    • A61K9/5021Organic macromolecular compounds
    • A61K9/5036Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A61K9/5042Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
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    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
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    • A61K9/5005Wall or coating material
    • A61K9/5063Compounds of unknown constitution, e.g. material from plants or animals
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Definitions

  • the invention relates to a preparation process of a traditional Chinese medicine micro drop pellet and a traditional Chinese medicine micro drop pellet prepared by the method, in particular to a preparation method of a microdroplet pellet with high drug loading amount, simple preparation process and high production rate, and a preparation method thereof Microdroplets prepared by the method.
  • the method can be used for preparing high-loaded micro-pill pills, coated micro-drop pills and micro-drop pills.
  • the preparation process of the conventional dropping pills is obtained by dropping the molten medicine into a non-miscible cooling medium (in most cases, using a condensate as a cooling medium), mainly relying on the falling gravity, the surface tension of the liquid and the inside.
  • the effect of stress is formed, so the unit drug loading is small (the main drug loading is generally only 25m% & right), the amount of matrix is large, and it does not meet the international market for polyethylene glycol (PEG)-based excipients.
  • the dose does not exceed the limit of 700mg, which cannot meet the requirements of the international market.
  • the traditional dropping pill process is difficult to achieve the dropping pills with a particle size of less than 2.5 mm.
  • the patient needs to take a large number of pills that are not easy to swallow each time, which is not suitable for the modern fast-paced requirements, and is also prone to problems such as inaccurate dosage, which is not easy for international Market consumers generally accept.
  • the dropping frequency of the traditional dropping pills is low, the roundness is not enough, the difference between the weight of the pills and the size of the dropping pills is large; the condensate is used to solidify the dropping pills, and the process of removing the condensing liquid is added later, and the condensate cannot be removed.
  • the problem of residual organic solvents Moreover, the conventional dropping pill drying method takes a long time, is uneven in drying, and is liable to cause problems such as volatilization of the volatile oil-containing product or precipitation of borneol in the drying process of the borneol-containing product.
  • the object of the present invention is to provide a method for preparing a microdroplet pellet which is simple and high-speed to prepare a high drug loading amount and a small amount of matrix used.
  • the preparation method of the micro-droplet of the present invention comprises the following steps:
  • Chemical step the drug and the dropping matrix are heated and melted to obtain a molten chemical solution
  • a dropping step conveying the molten chemical solution to a dripper by pressurization, and discharging the molten drug by a vibration dropping method;
  • Condensation step The dripped drops are cooled by a cooling gas to obtain microdroplets.
  • Another object of the present invention is to provide a traditional Chinese medicine micro-droplet, wherein the weight ratio of the drug to the matrix is 1:5-5:1, and the particle diameter of the micro-droplet is 0.2 mm ⁇ 4 mm. Further, the micropellet pellet is produced according to the method for preparing a micropellet according to the present invention, and the pellet-free condensate remains.
  • microdroplet refers to a pellet having a smaller volume than the conventional drip pellet. Specifically, it refers to a dropping pellet having a particle diameter of 0.2 mm to 4 mm, and particularly refers to a dropping pellet having a particle diameter of 0.2 mm to 2 mm and preferably having a particle diameter of 1 mm to 2 mm.
  • the "dropping condensate” as used in the present invention means a condensate commonly used in the manufacture of conventional dropping pills, for example, liquid paraffin, methyl silicone oil, vegetable oil (soybean oil, castor oil, etc.), but is not limited thereto.
  • the medicament of the present invention includes any suitable Chinese medicine and chemical medicine which can be prepared into a dropping pill. If it is a traditional Chinese medicine, it is preferred to use extracts such as ginkgo, Bupleurum, Salvia miltiorrhiza, and Andrographis paniculata extract, or extracts of Ginseng Yiqi, Huoxiang Zhengqi, and Compound Salvia miltiorrhiza. These extracts can be obtained from the market. Purchase can also be made by prior art techniques.
  • extracts such as ginkgo, Bupleurum, Salvia miltiorrhiza, and Andrographis paniculata extract, or extracts of Ginseng Yiqi, Huoxiang Zhengqi, and Compound Salvia miltiorrhiza.
  • the micro-drop pills of the invention include: compound Danshen micro-drop pills, Qishen Yiqi micro-drop pills, Danshen micro-drop pills, Huoxiang Zhengqi micro-drop pills, andrographolide micro-drop pills, compound ginkgo micro-drop pills, Guanxin Danshen Microdroplet pills, Xuesaitong microdroplets, etc., but are not limited thereto.
  • Preferred drugs of the invention are the compound active ingredient of Salvia miltiorrhiza and the active ingredient of Ginseng Yiqi.
  • Another object of the present invention is to provide a compound Danshen microdroplet pellet prepared by the method of the present invention, characterized in that: the compound Danshen microdroplet pellet is a compound salvia miltiorrhiza activity with a weight ratio of 1:5-5:1.
  • the compound Danshen micro-droplet has a particle size of 0.2 mm to 4 mm, preferably has a particle diameter of 0.2 mm to 2 mm, more preferably 1 mm to 2 mm, and the active ingredient of the compound Danshen is from the original medicine.
  • a further object of the present invention is to provide a ginseng qi sap pellet prepared by the method of the present invention, characterized in that: the ginseng qi granule is composed of a weight ratio of 1:5 to 5:1.
  • the active ingredient is prepared from a dropping pill matrix having a particle size of 0.2 mm to 4 mm, preferably a particle diameter of 0.2 mm to 2 mm, more preferably 1 mm to 2 mm, wherein the active ingredient is
  • the original medicinal material is prepared in the following parts by weight: 100-200 parts of astragalus, 50-100 parts of salvia miltiorrhiza, 10-20 parts of ginseng, 0.5-2 parts of volatile oil of scented scent, and manufactured by the method for preparing micro-drop pills according to the present invention , no drop pill condensate residue.
  • the present invention includes the following technical solutions:
  • a method for preparing a micropellet comprising the steps of:
  • the weight ratio of the dropping pill matrix is 1:5 ⁇ 5:1;
  • the dropping matrix comprises PEG, sorbitol, xylitol, lactitol, maltose, starch, methylcellulose, One or a combination of sodium carboxymethylcellulose, hydroxypropylmethylcellulose, gum arabic, alginic acid, dextrin, cyclodextrin, agar, lactose; preferred pellet base is solid PEG, for example PEG-1000, PEG-2000, PEG-3000, PEG-4000, PEG-5000, PEG-6000, PEG-7000, PEG-8000, further preferably PEG-1000, PEG-2000, PEG-3000, PEG-4000, One or more combinations of PEG-6000, PEG-8000, most preferably PEG-6000, PEG-4000 or a combination of PEG-4000 and PEG-6000.
  • the heating and melting temperature is 60 to 100 ° C, more preferably 65 to 90 ° C, still more preferably 75 to 85 ° C.
  • the homogenization time is preferably from 1 to 3 h, more preferably from 2 h.
  • the dripper temperature is 40 to 120 ° C, preferably 40 to 100 ° C; It is 20 to 300 Hz, more preferably 50 to 300 Hz, more preferably 20 to 200 Hz, still more preferably 20 to 150 Hz, and most preferably 50 to 150 Hz; the vibration mode includes a magnetic/electric vibration method or a pneumatic vibration method. .
  • the temperature of the cooling gas is 0 ° C - 150 ° C, preferably -10 to -140 ° ⁇ , further preferably -40 ° C to -140 ° C, further preferably -60 ° C to -140 ° C, more preferably -80 ° C to 120 ° C
  • the cooling gas is air, nitrogen or an inert gas.
  • the pellet has a particle diameter of 1.0 mm to 2.0 mm, preferably 0.5 mm to 2 mm.
  • the dripper temperature is 70 to 100 ° C
  • the dropping vibration frequency is 90 to 200 Hz
  • the dropping pressure is 1.0 to 3.0 Bar; preferably , vibration frequency 137Hz, acceleration 4G, drip pressure 1.8Bar, dripper temperature 75 ⁇ 85 °C.
  • the fluidized bed is dried at ⁇ 150 ° C, preferably at a temperature of 40 to 60 ° C, and the drying time is 1 to 4 hours, preferably 1 to 3 hours, and most preferably 2 hours.
  • step (4) adopts a gradient heating method: forming a fluidized state at -20 to 30 ° C, and drying at 15 to 35 ° C for 10 to 120 minutes, at 35 Drying at ⁇ 55 °C for 10 ⁇ 60min, drying at 55 ⁇ 100 °C for 0 ⁇ 60min, preferably, the gradient heating method is as follows: Forming a fluidized state at 0 ⁇ 20 °C, drying at 25 °C for 60min, Dry at 45 ° C for 30 min, dry at 55 ° C for 0 ⁇ 30 min.
  • the preparation method further comprises a coating step as the step (5), wherein the step is that the pellet obtained in the step (4) is Coating the pellets in a fluidized state; the concentration of the coating liquid is 15 to 25 wt%, preferably 18 to 20 wt%, wherein the coating material is selected from the group consisting of: shellac, phthalic acid acetate Or methyl acrylate, methyl methacrylate or Opadry; the weight ratio of the coating material to the pill is 1:50 to 1:25.
  • preparation method may further comprise a material pre-mixing step, after the step (1), adding the water to the drug extract or powder, at 30 Stir at ⁇ 80 ° C for more than 10 min to obtain a drug premix.
  • the present invention includes the following technical solutions:
  • a traditional Chinese medicine micro-droplet wherein, in the micro-droplet, the weight ratio of the drug to the matrix is 1:5 to 5:1, and the particle diameter of the micro-droplet is 0.2 mm to 4 mm, and
  • the micropellet pellets were produced according to the method described in any one of paragraphs 1 to 19, and the pellet-free condensate remained.
  • micro-droplet has a particle diameter of 0.2 mm to 2 mm.
  • a compound Danshen microdroplet pellet wherein the compound Danshen microdroplet pellet is prepared from a compound salvia miltiorrhiza active ingredient and a dropping pellet base in a weight ratio of 1:5 to 5:1, the compound Danshen microdroplet pellet
  • the particle size of the compound is 0.2mm ⁇ 4mm
  • the active ingredient of the compound salvia miltiorrhiza is prepared by the following raw materials: 75.0 ⁇ 90.0 parts of Salvia miltiorrhiza, 10.0 ⁇ 25.0 parts of Sanqi, 0.1 ⁇ 4.0 parts of borneol, and
  • the micropellet pellets were produced according to the method described in any one of paragraphs 1 to 19, and the pellet-free condensate remained.
  • a ginseng qi sap pellet characterized in that: the ginseng qi granule is made of an active ingredient and a dropping matrix of a weight ratio of 1:5 to 5:1, the cockroach
  • the particle size of Shenyiqi micro-dropping pills is 0.2mm ⁇ 4mm, and the active ingredients are made from the original medicinal materials in the following parts: 100 ⁇ 200 parts of astragalus, 50 ⁇ 100 parts of salvia miltiorrhiza, 10 ⁇ 20 parts of ginseng, and descending
  • the volatile oil is 0.5 to 2 parts, and the micropellet is produced according to the method described in any one of paragraphs 1 to 19, and the residue-free condensate remains.
  • the ginseng Yiqi microdroplet according to any one of paragraphs 30 to 34, wherein the active ingredient is prepared from the original medicinal material in the following parts by weight: 150 to 180 parts of astragalus, 75 to 85 parts of salvia miltiorrhiza, 13 to 13 parts of Sanqi, 0.5 to 1 part of volatile oil.
  • ginseng Yiqi micro-droplet according to any one of paragraphs 30 to 35, wherein the active ingredient is prepared from the original medicinal material in the following parts by weight: 150 parts of astragalus, 75 parts of salvia miltiorrhiza, 15 parts of notoginseng , 1 part of volatile oil.
  • the preparation method of the microdroplet of the present invention comprises the following steps:
  • the dropping matrix comprises PEG, sorbitol, xylitol, lactitol, maltose, starch, methylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, One or more combinations of gum arabic, alginic acid, dextrin, cyclodextrin, agar, lactose; preferred pellet base is solid PEG, such as PEG-1000, PEG-2000, PEG-3000, PEG-4000 PEG-5000, PEG-6000, PEG-7000, PEG-8000, further preferably one or more combinations of PEG-1000, PEG-2000, PEG-3000, PEG-4000, PEG-6000, PEG-8000 Most preferred is PEG-6000, PEG-4000 or a combination of PEG-4000 and PEG-6000.
  • the heating and melting temperature is preferably 60 to 100 ° C, more preferably 65 to 90 ° C, further preferably
  • the homogenization time is preferably from 1 to 3 h, and more preferably from 2 h.
  • the weight ratio of the drug to the dropping matrix is 1 :3 to 3:1, preferably 1 :(1 to 3).
  • the dripper temperature is preferably 60 to 120 ° C, preferably 60 to 100 ° C; and the dropping vibration frequency is preferably 20 to 300 Hz, more preferably 50 to 300 Hz, and more preferably 20 to 200 Hz, more preferably 20 to 150 Hz, and most preferably 50 to 150 Hz; the manner of vibration includes a magnetic/electric vibration mode or a pneumatic vibration mode. Among them, the vibration vibration frequency and amplitude are large. When the viscosity of the material exceeds 800 cp, the electric method cannot cut the material effectively, causing the dripper to clog. At this time, if the drop pellet is prepared, pneumatic vibration can be used.
  • the preferred mode of vibration of the present invention is a mode of electric vibration, and the viscosity of the molten chemical solution is preferably 500 to 1000 cp, more preferably 700 to 1000 cp.
  • the vibration waveform is used as the monitoring index of the process analysis technology (PAT), and the particle size distribution of the dropping pills can be measured, and the fluidization state of the dropping pills can be monitored in real time by the stroboscopic device.
  • PAT process analysis technology
  • the cooling gas cooling means that the falling drug droplets are cooled by a cryotrap and solidified.
  • the temperature of the cooling gas is preferably from 0 ° C to -150 ° C, more preferably from -10 ° C to 140 ° C, further preferably from -40 ° C to 140 ° C, further preferably from -60 ° C to -140 ° C, more preferably
  • the cooling gas is air, nitrogen or an inert gas
  • the dropping pellet has a particle diameter of 1.0 mm to 2.0 mm, preferably 0.5 mm to 2 mm.
  • the preparation method of the micro-droplet of the present invention comprises the following steps:
  • the method for preparing the microdroplet of the present invention comprises the following steps:
  • the weight ratio of the drug to the dropping matrix is 1:3 to 3:1, and the mixture is homogeneously mixed at 3000 to 5000 rpm for 10 to 60 minutes, and then, 4000.
  • ⁇ 9000rpm homogenization material, time 5 ⁇ 30min, during the chemical process the temperature is maintained at 70 ⁇ 90 °C; most preferably, the weight ratio of the drug to the dropping matrix is 1: (1 ⁇ 3)
  • the mixture is homogenized at 3000 ⁇ 4000rpm for 10-30min.
  • the material is homogenized at 4000 ⁇ 6000rpm for 6 ⁇ 30min.
  • the temperature is maintained at 75 ⁇ 85°C.
  • the dripper temperature is preferably 70 to 100 ° C, the dropping vibration frequency is 90 to 200 Hz, and the dropping pressure is 1.0 to 3.0 Bar; most preferably the vibration frequency is 137 Hz, and the acceleration is 4 G.
  • the dropping pressure is 1.8 Bar, and the dripper temperature is 75 to 85 ° C; the preferred dropping speed is 10 to 40 kg/h, preferably 12 to 30 Kg/h, and more preferably 15 to 25 Kg/h.
  • the preparation method of the micro-droplet of the present invention further comprises as the drying step of the step (4), and the low-temperature dropping pill after the dropping is completed by the step (3), and the temperature is 40 to 150 ° C, preferably the temperature is 40 to 60.
  • a fluidized state is formed at -20 to 30 ° C, and dried at 15 to 35 ° C.
  • the step (3) uses the drying method in a low-humidity environment, the drying method of the coating pan, and the drying method of the vacuum drying oven. , a hot air circulation drying oven drying method, a crawler type microwave dryer drying method, and a fluidized drying coating machine drying method. From the viewpoint of yield and productivity, a coating pan drying method, a crawler type microwave dryer drying method, and a fluidized drying coater drying method are preferred. From the viewpoint of industrialization, a fluidized bed drying method is preferred, and a fluidized drying coater drying method is more preferred. Table 1 shows the pros and cons of different drying methods.
  • the yield of low humidity ring is high. If it is not considered to be drastic (1), it is required to be harsh in the drying environment. The drying room is required to be affected by the drying factor in the clean environment. The yield is one plant, the relative humidity is lower than 30%, and the temperature is 20°. Above C, the air is around 95%. Circulation; (2) The drying cycle is long. It takes at least 48 hours in the case of a drop of about 2cm; (3) A large-scale workshop;
  • Hot air circulation is not (1) Drying efficiency is low, it requires long-term low-temperature drying, and it takes 40h/carton to dry in the drying oven; (3) Low equipment production capacity, drying per square meter The capacity of the dry box is difficult to exceed O.lkg/h; (4) It is easy to cause the adhesion deformation of the dropping pills, and the appearance of the dropping pills is not round; (5) The relative humidity of the drying room should be less than 30%.
  • Fluidized drying (1) The drying efficiency is high, and the inlet air humidity needs to be controlled, generally not exceeding 7.5g/kg.
  • the coating machine can dry up to 30kg/h; (2) can
  • Dry process is easy to control, real-time display
  • the method for preparing a microdroplet of the present invention further comprises as a coating step of the step (5).
  • the pellets obtained in the step (4) are in a fluidized state, and the pellets are coated; the concentration of the coating liquid is 15 to 25 wt%, preferably 18 to 20 wt%, wherein the coating material Selected from: shellac, cellulose acetate phthalate, methyl acrylate, methyl methacrylate or Opadry.
  • the weight ratio of the coating material to the pellets is preferably from 1:50 to 1:25.
  • step (1) it is preferred to have a material pre-mixing step before the step (1), and after the drug extract or powder is added with water, the mixture is stirred at 30-80 ° C for more than 10 minutes. A drug premix is obtained to ensure uniformity of moisture. This step can make up for the shortcomings of dry powder feeding.
  • the dropping pills obtained by the method of the present invention may be packaged directly or may be enclosed in a capsule shell to form a capsule.
  • the step of weighing the capsules can be increased, and the filled capsules are weighed at a high speed and granulated before packaging to remove the defective capsules that may be present.
  • the above method of the present invention is characterized in that: the process of vibration dripping, gas cooling and fluidized drying coating treatment is creatively combined for the first time, and is applied to a dropping pill preparation and a dropping pill capsule preparation, thereby improving the dropping pill
  • the production rate and forming quality further simplify the pharmaceutical production process, and the specific advantages of the method of the present invention are as follows:
  • Compound Danshen Dropping Pill is a traditional Chinese medicine for promoting blood circulation, regulating qi and relieving pain developed by Tianjin Tianshili Pharmaceutical Co., Ltd. It is used for chest pain and angina pectoris. Its main components are Danshen, Sanqi and Borneol. Its pharmacological effects include increasing coronary blood flow and increasing Myocardial hypoxia protects the ischemic myocardium, anti-platelet aggregation prevents thrombosis and improves microcirculation.
  • the preparation method of the existing compound Danshen dropping pill is as follows: the extract of Danshen and Sanqi is boiled to obtain an extract, the extract is concentrated to obtain an extract, the extract and the dropping matrix are mixed, put into a dropping machine, and the borneol is added. Mix, chemical, liquid paraffin as a condensing agent, after the dripping to obtain compound Danshen dropping pills.
  • the prior art has been very mature for the preparation of the compound Danshen dropping pills, it still faces the problems of the above-mentioned large amount of substrate used and small amount of drug loading in the preparation process.
  • the compound Danshen micro-drop pellets of the present invention are prepared from a compound Danshen active ingredient and a dropping pill base in a weight ratio of 1:5 to 5:1; preferably, the compound Danshen micro-dropping pills of the present invention are made by weight ratio 1 : 3 ⁇ 3: 1 compound danshen active ingredient and dropping pill matrix; most preferably, the compound Danshen micro drop pellet of the invention is composed of 1: (1 ⁇ 3) compound Danshen active ingredient and dropping pill matrix composition.
  • the active ingredient of the compound danshen according to the present invention is prepared from the original medicinal materials in the following parts by weight:
  • the active ingredient of the compound salvia miltiorrhiza according to the present invention is prepared from the original medicinal material in the following parts by weight:
  • the active ingredient of the compound salvia miltiorrhiza of the present invention is prepared from the original medicinal material in the following parts by weight:
  • the active ingredient of the compound salvia miltiorrhiza according to the present invention is a medicinal active ingredient in the compound Danshen dripping pill preparation, which is obtained by extracting Danshen and Sanqi by using Danshen and Sanqi, and then adding the borneol, the active ingredient is obtained.
  • the preparation belongs to the prior art, and can be obtained by using the ratio of the medicinal materials of the present invention, prepared according to the prior art, or purchasing commercially available Salvia miltiorrhiza extract, Panax notoginseng extract and borneol.
  • the compound Danshen active ingredient is preferably prepared by the following method:
  • Salvia miltiorrhiza and Panax notoginseng are boiled under alkaline conditions with water, filtered by boiling liquid, concentrated and alcohol precipitated, and the supernatant is filtered, and the ethanol is recovered and concentrated, and dried to obtain the extract of Salvia miltiorrhiza Bge.
  • the salvia miltiorrhiza and the notoginseng are boiled for 1 to 3 times with water, and each time it is boiled for 1 to 3 hours, filtered, the filtrate I is reserved, and the dregs are boiled with water. ⁇ 3 times, each time boiling for l ⁇ 3h, filtered, filtrate II is reserved, filtrate I, II is combined and concentrated, concentrated liquid is precipitated, allowed to stand, supernatant is taken, filtered, ethanol is recovered, concentrated and dried to obtain Danshen Sanqi Extract.
  • the alkaline condition is not limited to one or more of sodium hydrogencarbonate, sodium carbonate, sodium hydrogen phosphate, sodium dihydrogen phosphate, sodium hydroxide, potassium hydroxide or magnesium hydroxide, and the pH is preferably controlled to be 7.5 to 9.0. To ensure that the sodium danshensu is completely extracted.
  • ⁇ /v 100% (v/v) ethanol solution (most preferably 95% (v/v) ethanol solution) to alcohol precipitation, and the concentration of alcohol to alcohol is preferably 60 to 75% (v/v).
  • the preparation method of the compound danshen micro-drop pellet of the invention comprises the following steps:
  • the pill weight of the dropping pills is reduced from 23.5 ⁇ 27.5mg of the traditional dropping pills to 3 ⁇ 4mg, which can be used for capsule filling, and the gas condensation step solves the existing dropping pills products.
  • the compound danshen micro-drop pellet of the present invention was prepared according to the preparation example 1 of the compound danshen micro-drop pellet.
  • Comparative drugs Compound danshen Dripping Pills, Tianjin Tianshili Pharmaceutical Co., Ltd., which has been listed in China.
  • TTC triphenyltetrazolium chloride
  • Animal grouping The test rats were randomly divided into S group (sham operation group), M group (model group), and Y group (positive according to body weight).
  • the drug group metoprolol tartrate, batch number: 1201039), group F (combined Danshen micro-drop pills of the invention), group G (domestic product, batch number: 2011L16), 10 in each group.
  • Modeling and administration methods After the animals were grouped, they were administered by intragastric administration for 7 days, see Table 3. On the 8th day, rats were treated with 10% chloral hydrate.
  • LAD left coronary vein trunk between the lower left atrial appendage and the pulmonary artery cone
  • the LAD was sutured together with a small amount of myocardial tissue with a 4-0 medical suture thread at a distance of about 1 to 2 mm from the lower edge of the left atrial appendage, in the interventricular sulcus near the left coronary vein trunk.
  • the electrocardiogram had a J point elevation O. lmV and the left ventricular anterior wall became pale, indicating that the model was successfully established.
  • the chest was closed layer by layer, and the tracheal intubation was removed after the rat's spontaneous breathing resumed.
  • the electrocardiogram was continuously recorded for 4 h, the heart was cut under anesthesia, and the sections were stained to calculate the myocardial infarction rate; the animal serum was taken and used.
  • Myocardial infarction rate (%) wet weight in infarct area / whole heart wet weight X 100%
  • the results are shown in Table 5.
  • the heart rate of each group was F group, G group, M group, Y group, S group, lh, the heart rate of each group There is a downward trend.
  • the heart rate changes of group Y and group S were relatively stable. There was no significant difference in heart rate between the rats in each group.
  • each group had certain anti-acute myocardial infarction effects on coronary artery ligation rats, especially the myocardial infarction rate of the micro-drop pellets of the present invention at the dose of 84 mg/kg was 3.38 ⁇ 0.49%.
  • the efficacy of the domestic compound Danshen dripping pill product at a dose of 115 mg/kg of myocardial infarction was 3.32 ⁇ 0.59%.
  • the micro-droplet of the invention can achieve the pharmacodynamic effect of the domestic compound Danshen dripping pill product at a dose of 115 mg/kg at a dose of 84 mg/kg, and the micro-droplet of the invention has better curative effect than the existing compound Danshen dripping pill. , and has the beneficial effects of high bioavailability, small dosage of patients taking drugs, and good compliance.
  • Pre-mixing step pre-mixing the active ingredients of compound Danshen with water, stirring in a 40 ⁇ 10°C incubator for more than 60 minutes, so that the water content of the active ingredients of the compound Danshen is 13.0wt%, and the compound Dandan active ingredient premix is obtained. Standby
  • drying step the dropping pills are fluidized and dried, and after the material forms a better flow state in the bed, the temperature is raised to 25 ° C for 60 min, and then the temperature is raised to 45 ° C for 30 min, and the temperature is further increased to 55. Dry at °C for 30 min, then cool down to below 30 °C.
  • the water content of the dropping pill is controlled at 3.0 to 7.0 wt% to obtain an intermediate pill;
  • Coating step Calculate the amount of coating powder according to the amount of coating and the dosage of the coating, and prepare a coating solution with a concentration of 18% by weight of 4% of Opadry, and stir for 45 minutes.
  • Set the inlet air temperature to 25 °C.
  • the temperature of the material is controlled at 35-45 °C.
  • the temperature is lowered to below 30 °C, and the pellets are obtained to obtain the intermediate coated pellets.
  • the weight gain of the intermediate coated pellets was controlled at 3.3 ⁇ 0.7wt%, and the moisture was controlled at 3.0 ⁇ 7.0wt%;
  • Capsule and packaging steps Capsules with a particle size of 1.0mm ⁇ 2.0mm will be made into capsules, and 100% online weight check will be completed by capsule checker, and then packaged into final product.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle size of the dropping pills, a sieve can also be added. Pill granules step.
  • the preparation method of the compound danshen active ingredient is as follows:
  • step (1) under alkaline conditions (pH 8.0), Danshen and Sanqi are boiled twice with water, and boiled for 2 hours each time. Filtration, filtrate I spare, the dregs were boiled twice with water, each time boiling for 2 h, filtered, filtrate II was used, the filtrates I and II were combined and concentrated, and the concentrate was added to ethanol to 70% (v/v). After standing, the supernatant was taken, filtered, and the ethanol was recovered and concentrated to obtain the extract of Salvia miltiorrhiza.
  • borneol is purchased from the market.
  • the extract of Salvia miltiorrhiza Bge. is prepared by 75 parts by weight of Salvia miltiorrhiza, 10 parts by weight of ginseng and 0.1 parts by weight of borneol.
  • the weight ratio of active ingredient of Salvia miltiorrhiza to PEG-6000 is 1:5, and other compound danshen droplets In the same manner as in Preparation Example 1, the compound danshen microdroplets were prepared.
  • the extract of Salvia miltiorrhiza Bge. is prepared by 90 parts by weight of Salvia miltiorrhiza, 25 parts by weight of ginseng and 4 parts by weight of borneol.
  • the weight ratio of active ingredient of Danshen to PEG-6000 is 5:1, and other compound danshen droplets.
  • the compound Danshen microdroplets were prepared.
  • a mixture of 75g of Salvia miltiorrhiza extract, 7.5g of borneol, 1:1 mixture of cyclodextrin and agar 1:1 was prepared into compound danshen micro-dropping pills.
  • the preparation method is as follows:
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the dropping pressure is 4.0Bar
  • the drip vibration is dripped
  • the dropping speed is matched with the step (1) the material speed
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material to the pellet is 1:25, the concentration of the coating liquid is 10% by weight, and the coating is carried out at a temperature of 40 ° C. Clothes, coated with pills, the coating material is Opadry.
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the compound Danshen active ingredient powder (75g of Salvia miltiorrhiza extract, 7.5g of borneol) and 165g of PEG-8000 were prepared into compound danshen microdroplets.
  • the preparation method is as follows:
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material to the pellet is 1:25, the concentration of the coating liquid is 10% by weight, and the coating is carried out at a temperature of 40 ° C. Clothes, coated with pills, coated material shellac.
  • the compound Danshen active ingredient powder (90g of Salvia miltiorrhiza extract, 2g of borneol) and 270g of PEG-1000 were prepared into compound Danshen micro-dropping pills.
  • the preparation method is as follows:
  • the compound Danshen active ingredient powder is added with water, and then stirred at 30 ° C for more than 10 minutes to obtain a drug premix.
  • the dropping pills are dried by gradient heating, formed into a fluidized state at -20 ° C, and dried at 15 ° C. lOmin, dried at 35 ° C for 10 min, dried at 55 ° C for 30 min, to obtain dried pills.
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material to the pellet is 1:25, the concentration of the coating liquid is 10% by weight, and the coating is carried out at a temperature of 40 ° C.
  • the coating material is cellulose acetate phthalate.
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the compound Danshen active ingredient powder (100g of Salvia miltiorrhiza extract, 5g of borneol), and 35g of PEG-4000 and PEG-6000 1 : 1 were prepared into compound Danshen micro-drop pellets.
  • the preparation method is as follows:
  • the compound Danshen active ingredient powder is added with water, and then stirred at 80 ° C for more than 10 minutes to obtain a compound Danshen active ingredient premix.
  • the dropping pills are dried by gradient heating, formed into a fluidized state at 30 ° C, dried at 35 ° C for 120 min, dried at 55 ° C for 60 min, dried at 100 ° C for 60 min, and dried. Pills pills.
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material to the pellet is 1:25, the concentration of the coating liquid is 10% by weight, and the package is carried out at a temperature of 35 ° C.
  • the coating material is methyl acrylate.
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • Drying and coating step the cooled solid pellets are fluidized and dried, and the drug-loading coating is dried at a temperature of 75 ° C to prepare coated micro-droplets having a particle diameter of 0.2 mm to 1.0 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle diameter of the dropping pills, Add the sieve pelleting step.
  • Drying and coating step the cooled solid pellet is subjected to fluidized drying and drug-loading coating, and the drying temperature is 150 ° C to prepare a coated micro-droplet having a particle diameter of 0.5 mm to 1.0 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle diameter of the dropping pills, Add the sieve pelleting step.
  • the cooled solid pellets are fluidized and dried, and coated with a drug, formed into a fluidized state at 20 ° C, dried at 25 ° C for 60 min, dried at 45 ° C for 30 min, dried at 55 ° C. 30 min, a coated micro-droplet having a particle size of 3.0 mm to 4.0 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle diameter of the dropping pills, Add the sieve pelleting step.
  • Drying and coating step the cooled solid pellet is subjected to fluidized drying and drug-loading coating, and the drying temperature is 150 ° C to prepare a coated micro-droplet having a particle diameter of 0.2 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the dripping liquid is cooled into a solid drop pill
  • drying and coating step the cooled solid pellets are fluidized and dried and loaded with a drug, and the drying temperature is 150 ° C to prepare a coated micro-droplet having a particle diameter of 4.0 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the dripping liquid is cooled into a solid drop pill
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • Drying and coating step the cooled solid pellet is subjected to fluidized drying and drug-loading coating, and the drying temperature is 75 ° C to prepare a coated micro-droplet having a particle diameter of 1.0 to 2.0 mm;
  • the preparation method of the extract of Salvia miltiorrhiza Bge. is the same as that described in Preparation Example 1 of the compound danshen micro-drop pellet.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle diameter of the dropping pills, Add the sieve pelleting step.
  • the micro-dropping pills obtained in the preparation of compound Danshen micro-drop pellets also have good curative effect, high bioavailability, small dosage of patients taking drugs, and compliance. Good sex and similar benefits.
  • the microdroplets obtained in the preparation of the compound danshen microdroplet pellets 2-17 also had the advantages listed in Table 2.
  • Qishen Yiqi Dropping Pill is a traditional Chinese medicine preparation made of Astragalus, Salvia, Sanqi and Jiangxiang. It can significantly improve various symptoms such as myocardial injury and cardiac dysfunction, and treat chronic heart failure, myocarditis and sequelae, and recovery period of myocardial infarction. , myocardial fibrosis.
  • the existing Qishen Yiqi Dropping Pill has the characteristics of small dosage, convenient taking, fast dissolution, direct absorption into the blood through the mucous membrane, high bioavailability, high curative effect, no gastrointestinal irritation and no obvious side effects.
  • the preparation of Qishen Yiqi Dropping Pills mainly adopts the following methods: taking Astragalus, Salvia miltiorrhiza, Sanqi, Fragrance, PEG-6000 ⁇ . Danshen and Sanqi are boiled with water, ethanol is precipitated, ethanol is recovered, and salvia miltiorrhiza is concentrated.
  • the ginseng Yiqi micro-dropping pill according to the present invention is composed of an active ingredient and a dropping pill base in a weight ratio of 1:5 to 5:1, and the active ingredient is prepared from the original medicinal material in the following parts by weight:
  • the active ingredient is made from the original medicinal material in the following parts by weight:
  • the active ingredient is prepared from the original medicinal material in the following parts by weight:
  • the micropellet of the present invention is made of an active ingredient in a weight ratio of 1:3 to 3:1 and a dropping matrix. Most preferably, it is made up of an active ingredient in a weight ratio of 1:1 to 3 and a dropping base.
  • the active ingredient of the Qishen Yiqi micro-dropping pill according to the present invention is a medicinal active ingredient in the preparation of the ginseng Yiqi micro-dropping pill preparation, which is obtained by extracting and processing the extract of Astragalus, Salvia miltiorrhiza and Sanqi, and then adding the drop.
  • the volatile oil is obtained, and the preparation of the active ingredient belongs to the prior art, and may be prepared according to the prior art according to the ratio of the medicinal materials according to the present invention, or commercially available astragalus, salvia miltiorrhiza extract, notoginseng extract and fragrant volatile oil get. In order to better carry out the invention, it is preferably prepared by the following method:
  • the salvia miltiorrhiza and the notoginseng are boiled for 1 to 3 times with water, decocted for 1 to 3 hours each time, filtered, and the filtrate is concentrated to obtain a concentrate; in the concentrate Add 70 ⁇ 100% (v/v) ethanol, make the alcohol content 50-70% (v/v), let stand, separate the supernatant, filter, concentrate the ethanol, and get the Danshen Sanqi extract.
  • the salvia miltiorrhiza, the notoginseng water and the appropriate amount of alkali are boiled twice, each time boiling for 2 h, filtered, the filtrate is combined, and the filtrate is concentrated to a relative density of 1.13 to 1.23 (80 ° C), and ethanol is added to make the alcohol content. Up to 65 ⁇ 70% (v/v), allowed to stand for more than 12h, filtered, recovered ethanol, concentrated to a relative density of 1.30 ⁇ 1.38 (80 °C) extract, get Danshen Sanqi extract.
  • the radix is decocted with an alkaline aqueous solution for 1 to 3 times, and each time it is boiled for 1 to 3 hours, filtered, and the filtrate I is obtained.
  • the slag is extracted with water for 1 to 3 times, and each time is extracted for 1 to 3 hours.
  • Filtration, filtrate II, filtrate I, II combined and concentrated add 50 ⁇ 100% (v/v) ethanol alcohol precipitation 1 ⁇ 3 times, alcohol precipitation to alcohol content 60 ⁇ 80% (v/v), After standing, the filtrate III was filtered, and the filtrate III was recovered and concentrated with ethanol to obtain a scutellaria extract.
  • the scutellaria is added with water and an appropriate amount of sodium hydrogencarbonate for 2 hours, and the extract is filtered to obtain a filtrate.
  • the dregs are continuously added with water for 1h, and the extract is filtered to obtain filtrate II.
  • the filtrates I and II are combined and concentrated to a relative density of 1.05 ⁇ 1.20 (75 ⁇ 5°C), and the concentrate is added with alcohol to 60 ⁇ 1% of alcohol. (v/v), allowed to stand for more than 12h, the supernatant was separated, filtered, and the supernatant was decompressed to recover ethanol to a relative density of 1.18 ⁇ 1.30 (60 ⁇ 5 °C) to obtain a concentrate.
  • the concentrate was added with ethanol to alcohol.
  • the alkaline condition is an environment having a pH of 7.5 to 9.0, and the alkaline substance used may be sodium hydrogencarbonate, sodium carbonate or phosphorus.
  • the alkaline substance used may be sodium hydrogencarbonate, sodium carbonate or phosphorus.
  • sodium hydrogen hydride, sodium dihydrogen phosphate, sodium hydroxide, potassium hydroxide, and magnesium hydroxide but is not limited thereto.
  • the preparation method of the Qishen Yiqi micro-dropping pill of the invention comprises the following steps:
  • the pill weight of the dropping pills is reduced from 23.5 ⁇ 27.5mg of the traditional dropping pills to 3 ⁇ 5mg, which can be used for capsule filling, and the gas condensation step solves the existing dropping pills products.
  • residual condensate such as liquid paraffin.
  • Pre-mixing step Premix the active ingredient of Qishen Yiqi micro-dropping pill with water, stir in a 40 ⁇ 10°C incubator for more than 60min, and make the water content of the active ingredient 13.0wt%. Pill active ingredient premix, spare;
  • drying step the dropping pills are fluidized and dried, and after the material forms a good fluid state in the bed, the temperature is raised to
  • Coating step Calculate the amount of coating powder according to the amount of coating and the dosage of the coating. Take 4% of the weight of the granules into a concentration of 18% of the coating solution and stir for 45 minutes. Set the inlet air temperature to 25 °C. After the qualified pellets are put into the fluidized bed, increase the set inlet air temperature to 48 °C. After the material temperature reaches 38 °C, start coating. During the coating process, the temperature of the material is controlled at 35-45 °C. After the coating is completed, the temperature is lowered to below 30 °C, and the pellets are obtained to obtain the intermediate coated pellets. The weight gain of the intermediate coated pellets was controlled at 3.3 ⁇ 0.7wt%, and the moisture was controlled at 3.0 ⁇ 7.0wt%;
  • Capsule and packaging steps The prepared pellets with a particle size of 1.0mm ⁇ 2.0mm are filled into capsules, and 100% online weight is checked by a capsule checker, and then packaged into a final product.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle size of the dropping pills, a sieve can also be added. Pill granules step.
  • step (1) Danshen, Sanqi water and an appropriate amount of alkali are boiled twice, each time boiling for 2 hours, filtered, and the filtrate is combined, and the filtrate is concentrated to a relative density of 1.13 to 1.23 (80 ° C), and ethanol is added.
  • the alcohol content is 65 ⁇ 70% (v/v), allowed to stand for more than 12h, filtered, and the ethanol is recovered and concentrated to a relative density of 1.30 ⁇ 1.38 (80 °C) to obtain the Danshen Sanqi extract.
  • the scutellaria is added with water and an appropriate amount of sodium hydrogencarbonate for 2 hours, and the extract is filtered to obtain filtrate I; the slag is continuously added with water for 1 hour, and the extract is filtered to obtain filtrate II, and the filtrates I and II are combined.
  • Concentrate to a relative density of 1.05 ⁇ 1.20 (75 ⁇ 5°C) add ethanol to the alcohol content of 60 ⁇ 1% (v/v), let stand for more than 12h, separate the supernatant, filter, and remove the supernatant.
  • Ethanol is recovered by pressure to a relative density of 1.18 ⁇ 1.30 (60 ⁇ 5°C) to obtain a concentrated liquid.
  • the concentrated liquid is added with ethanol to an alcohol content of 80 ⁇ 1% (v/v), allowed to stand for more than 12 hours, and the supernatant is separated and filtered.
  • the supernatant was decomposed and concentrated under reduced pressure to a relative density of 1.30 to 1.38 (70 ⁇ 5 ° C) to obtain a scutellaria extract.
  • the fragrant volatile oil is a product purchased on the market.
  • PEG-6000 will be added to the chemical tank, heated to 70-80 ° C, pre-melted; then added a uniform mixture of scutellaria extract and Salvia miltiorrhiza extract and scented volatile oil, mixed, Homogenized into a molten liquid;
  • Qishen Yiqi Micro Drop Pills In addition to the active ingredient of Qishen Yiqi Micro Drop Pills, it is prepared by 100 parts by weight of Astragalus, 50 parts by weight of Salvia miltiorrhiza, 10 parts by weight of Panax notoginseng and 0.5 parts by weight of volatile oil.
  • the active ingredients of Qishen Yiqi Micro Dropping Pills and PEG-6000 The weight ratio of 1:5 was the same as that of the preparation example 1 of the ginseng Yiqi micro-drop pellets, and the ginseng Yiqi micro-dropping pills were prepared.
  • Qishen Yiqi micro-drop pills In addition to the active ingredient of Qishen Yiqi micro-drop pills, it is prepared by 200 parts by weight of Astragalus, 100 parts by weight of Salvia miltiorrhiza, 20 parts by weight of Panax notoginseng, and 2 parts by weight of volatile oil of fragrant scented fragrant oil.
  • the active ingredient of ginseng Yiqi micro-dropping pills and PEG-6000 The weight ratio of 5:1 was the same as that of the preparation of the ginseng Yiqi micro-drop pellets.
  • ginseng Yiqi micro-drop pellets active ingredient 80g a mixture of gum arabic and lactose 1 : 1 165g, prepared into a ginseng Yiqi micro-dropping pills, the preparation method is as follows:
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material shellac to the pellet is 1:25, the concentration of the coating liquid is 10% by weight, and the temperature is 45 °C. For the coating, the coating is dropped.
  • the preparation method is as follows:
  • Drying is carried out by fluidized drying equipment, and dried at 50 ° C for 2 hours to obtain dried pills.
  • coating step the dried dropping pills are coated in a fluidized bed, the coating material weight ratio of cellulose acetate cellulose to the pellet is 1:25, and the concentration of the coating liquid is 25 wt%. The coating was carried out at a temperature of 35 ° C to obtain a coated pellet.
  • the preparation method is as follows: After adding water to the active ingredient powder of Qishen Yiqi micro-drop pellet, it was stirred at 30 ° C for more than 10 min to obtain a premix.
  • drying step drying the dropping pellet by gradient heating, forming a fluidized state at -20 ° C, drying at 10 ° C for 10 min, drying at 35 ° C for 10 min, drying at 55 ° C for 30 min, drying Dropping pills.
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material Opadry to the pill is 1:25, the concentration of the coating liquid is 20% by weight, and the temperature is 40°. C is coated, and the coating is dropped.
  • the dropping pills are dried by gradient heating, formed into a fluidized state at 30 ° C, dried at 35 ° C for 120 min, dried at 55 ° C for 60 min, dried at 100 ° C for 60 min, and dried. Pills pills.
  • Coating step the dried dropping pills are coated in a fluidized bed, the weight ratio of the coating material to methyl acrylate and the pill is 1:25, the concentration of the coating liquid is 5 wt%, and the temperature is 35°. C is coated, and the coating is dropped.
  • the microdroplets obtained in the preparation of the ginseng Yiqi micropill pellets 1-10 also have the advantages listed in Table 2, compared with the existing Qishen Yiqi Dropping Pills.
  • the extract of Salvia miltiorrhiza can be prepared or purchased from a commercially available product by an existing method.
  • the extract of Salvia miltiorrhiza can be prepared or purchased from a commercially available product by an existing method.
  • Huoxiang Zhengqi extract can be prepared by the methods disclosed in CN100563635A and CN 1745799A, and the patchouli oil and perilla leaf oil are commercially available.
  • the vibration frequency of the vibrating dripper was adjusted to 200 Hz, the dripper temperature was controlled at 80 ° C, and the liquid medicine was introduced into the dripper by pressurization.
  • the droplets were cooled by a low temperature air, and the temperature of the cooling gas was -40 ° C to obtain a solid drop pellet. Then, in the same manner as in Preparation Example 1, fluidized drying and drug-coating were carried out, and sieved and sized, and finally packaged into a final product.
  • Huoxiang Zhengqi extract can be prepared by the methods disclosed in CN100563635A and CN 1745799A, and the patchouli oil and perilla leaf oil are commercially available products.
  • the starch is first added to the chemical tank, heated to 70-80 ° C, pre-melted: then added andrographolide, mixed and formed into a liquid. Adjusting the vibration frequency of the pneumatic vibrating dripper to 30Hz, the dripper temperature is controlled at 80 °C, the liquid medicine flows into the dripper by pressurization, and the liquid medicine is dripped from the bottom of the dripper into the cooling pipe, and is cooled by low-temperature nitrogen gas, cooling temperature It is -20 ° C. Then, fluidized drying and drug-loading coating are carried out, and sieved and granulated, and finally packaged into a final product, and the particle diameter of the dropping pills is 0.5 mm to 1 mm.
  • Andrographolide is prepared according to the prior art or is commercially available.
  • the Ginseng extract of Salvia miltiorrhiza is prepared according to the method of CN 1872099B.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle size of the dropping pills, the screening pills can also be added.
  • the screening pills can also be added.
  • PEG-6000 Take 600g of Salvia miltiorrhiza extract and 2000g of PEG-6000.
  • PEG-6000 is added to the chemical tank, heated to 90 ° C, pre-melted, and then added to the Ginseng extract of Salvia miltiorrhiza. Adjust the vibration frequency of the pneumatic vibrating dripper to 50 Hz and the dripper temperature to 80 °C.
  • the liquid is poured into the dripper by means of pressure, and is dropped from the bottom of the dripper into the cooling duct, cooled by a low-temperature inert gas, and cooled at a temperature of -20 ° C to cool the dripped liquid into a solid drop.
  • the above solid dropping pellets were fluidized and dried and loaded with a drug, and the drying temperature was 75 °C.
  • the prepared pellets with a particle size of 1.0 mm to 2.0 mm are filled in capsules, and 100% in-line weight is checked by a capsule weighing machine, and then packaged into a final product.
  • the Ginseng extract of Salvia miltiorrhiza is prepared according to the method of CN 101015527B.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle size of the dropping pills, the screening pills can also be added.
  • the screening pills can also be added.
  • the dropping pellets were then fluidized and dried and loaded with a coating at a drying temperature of 75 degrees.
  • the prepared pellets with a particle size of 1.0 ⁇ 2.0mm are filled into capsules, and 100% online weight is checked by a capsule weighing machine, and then packaged into final products.
  • Danshen notoginseng extract and fragrant volatile oil can be purchased from commercially available Salvia miltiorrhiza extract, Sanqi extract and fragrant volatile oil.
  • Salvia miltiorrhiza extract can also be used to prepare compound Danshen dripping pills or Qishen Yiqi microdropping pills. The method used to prepare the extract of Salvia miltiorrhiza Bge.
  • the forming of the dropping pills can be monitored and adjusted in real time by stroboscopic irradiation and visual inspection; after the drug-loading coating, in order to improve the uniformity and roundness of the particle size of the dropping pills, the screening pills can also be added.
  • the screening pills can also be added.

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Abstract

一种中药微滴丸制备工艺以及由所述方法制备得到的中药微滴丸,特别是一种载药量高、制备工序简单、生产速率高的微滴丸制备方法以及由所述方法制得的微滴丸。具体而言,所采用的滴丸制备方法包括如下步骤:(1)化料步骤:药物与滴丸基质加热熔融,得到熔融药液;(2)滴制步骤:将所述熔融药液通过加压方式输送到滴头,通过振动滴制法使所述熔融药液滴出;(3)冷凝步骤:滴出的药滴经过冷却气体冷却,得到微滴丸。

Description

一种中药微滴丸的制备方法以及由所述方法制得的中药微滴丸 技术领域
本发明涉及一种中药微滴丸制备工艺以及由所述方法制备得到的中药微滴丸, 特别是涉及 一种载药量高、 制备工序简单、 生产速率高的微滴丸制备方法以及由所述方法制得的微滴丸。 该方法可用于制备高载药量的素丸微滴丸、 包衣微滴丸以及微滴丸胶囊。
背景技术
滴丸作为一种重要的传统中药制剂已经得到广泛应用, 它的优点在于: 生产周期短、 无粉 尘污染、 生物利用度高、 起效迅速、 局部给药有长效作用、 能减小药物挥发、 增加药物稳定性 且便于携带贮存。
但是, 传统滴丸的制备工艺采用将熔融药液滴到与其不相混溶的冷却介质 (多数情况下采 用冷凝液作为冷却介质) 中来获得, 由于主要依靠下落重力、 药液表面张力及内应力的作用成 形, 所以单位载药量小 (主药载药量一般仅在 25m%&右)、 基质的使用量大, 不符合国际市 场对聚乙二醇 (PEG) 类辅料每日最高服用剂量不超过 700mg的限制, 无法满足国际市场的要 求。 而且, 传统滴丸工艺很难做到小于 2.5mm粒径的滴丸, 病人每次需要服用大量不易吞咽的 药丸, 不适应现代快节奏的要求, 也容易出现剂量不准等问题, 不易为国际市场消费者普遍接 受。 此外, 传统滴丸的滴制频次较低, 圆整度不够, 丸重及滴丸大小差异较大; 使用冷凝液凝 固滴丸, 后期需加入除去冷凝液的工序, 且会有冷凝液无法除尽所带来的有机溶剂残留问题。 并且, 采用传统滴丸干燥方法耗时长、 干燥不均匀、 容易造成含挥发油产品的挥发或含冰片产 品在干燥过程中析出冰片等问题。
因此, 如何找到一种能够有效提高生产速率、 降低基质使用量、 提高载药量并能制备小粒 径的微滴丸, 是现代滴丸制备工艺需要发展和探索的重要课题。
发明内容
本发明的目的是提供一种简单高速制备高载药量、 基质使用量小的微滴丸的制备方法。 本 发明所述的微滴丸的制备方法包括如下步骤:
化料步骤: 药物与滴丸基质加热熔融, 得到熔融药液;
滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 通过振动滴制法使所述熔融药 液滴出;
冷凝步骤: 滴出的药滴经过冷却气体冷却, 得到微滴丸。
本发明的另一目的是提供一种中药微滴丸, 在所述微滴丸中, 药物与基质的重量比为 1 :5-5: 1 , 微滴丸的粒径为 0.2mm~4mm, 并且, 所述微滴丸根据本发明所述的微滴丸制备方法 制造, 无滴丸冷凝液残留。
本发明所述的 "微滴丸" 是指与现有的滴丸相比, 体积更小的滴丸。 具体而言, 是指粒径 为 0.2mm~4mm的滴丸, 特别是指粒径为 0.2mm~2mm、 优选粒径为 lmm~2mm的滴丸。
本发明中所述的 "滴丸冷凝液" 是指在制造传统滴丸中常用的冷凝液, 例如, 液体石蜡、 甲基硅油、 植物油 (豆油、 蓖麻油等), 但不限于此。
本发明所述的药物包括任何适合可制备成滴丸的中药和化学药。 如果是中药, 优选采用其 提取物, 如: 银杏、 柴胡、 丹参、 穿心莲的提取物, 也可以是芪参益气、 藿香正气、 复方丹参 配方的提取物, 这些提取物可以从市场上购买, 也可以通过现有技术制备。 本发明的微滴丸包 括: 复方丹参微滴丸、 芪参益气微滴丸、 丹参微滴丸、 藿香正气微滴丸、 穿心莲内酯微滴丸、 复方银杏微滴丸、 冠心丹参微滴丸、 血塞通微滴丸等, 但不限于此。 本发明优选的药物为复方 丹参活性成分和芪参益气活性成分。 本发明的另一目的是提供一种由本发明的方法制备得到的复方丹参微滴丸, 其特征在于: 所述复方丹参微滴丸是由重量比为 1 :5~5: 1 的复方丹参活性成分与滴丸基质制成, 所述复方丹 参微滴丸的粒径为 0.2mm~4mm, 优选粒径为 0.2mm~2mm, 更优选为 lmm~2mm, 所述复方 丹参活性成分是由原药材按如下重量份制成: 丹参 75.0~90.0份、 三七 10.0~25.0份、 冰片 0.1~4.0份, 并且, 根据本发明所述的微滴丸制备方法制造, 无滴丸冷凝液残留。
本发明的又一目的是提供一种由本发明的方法制备得到的芪参益气微滴丸, 其特征在于: 所述芪参益气微滴丸是由重量比为 1 :5~5: 1 的活性成分与滴丸基质制成, 所述芪参益气微滴丸 的粒径为 0.2mm~4mm, 优选粒径为 0.2mm~2mm, 更优选为 lmm~2mm, 所述活性成分是由 原药材按如下重量份制成: 黄芪 100~200份、 丹参 50~100份、 三七 10~20份、 降香挥发油 0.5~2份, 并且, 根据本发明所述的微滴丸制备方法制造, 无滴丸冷凝液残留。
具体而言, 作为第一方面, 本发明包括如下技术方案:
1.一种微滴丸的制备方法, 所述方法包括如下步骤:
( 1 ) 化料步骤: 药物与滴丸基质加热熔融, 得到熔融药液;
( 2 ) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 并通过振动滴制法使所述熔 融药液滴出;
( 3 ) 冷凝步骤: 滴出的药滴经过冷却气体冷却, 得到微滴丸。
2.如段落 1所述的制备方法, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质在 40~120°C的温度下加热熔融, 均质成均匀 的熔融药液, 均质时间 0.5~4h, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1;
(2) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 在滴头温度为 40~200°C、 滴 制振动频率为 20~300Hz、 滴制压力 0.5~4.0Bar、 熔融药液的粘度为 300~1500cp进行滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.2mm~4mm 的滴丸, 所述冷却气体的温度为 0°C以下。
3. 如段落 1或 2所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述滴丸基质包括 PEG类、 山梨醇、 木糖醇、 乳糖醇、 麦芽糖、 淀粉、 甲基纤维素、 羧甲基纤维素钠、 羟丙基甲基纤维 素、 阿拉伯胶、 海藻酸、 糊精、 环糊精、 琼脂、 乳糖中的一种或多种组合; 优选的滴丸基质为 固体 PEG , 例如 PEG-1000、 PEG-2000、 PEG-3000、 PEG-4000、 PEG-5000、 PEG-6000、 PEG-7000、 PEG-8000 , 进一步优选 PEG- 1000、 PEG-2000、 PEG-3000、 PEG-4000、 PEG- 6000、 PEG-8000中的一种或多种组合, 最优选为 PEG-6000、 PEG-4000或 PEG-4000和 PEG- 6000的组合。
4. 如段落 1~3任一项所述的制备方法, 上述步骤 (1 ) 中, 加热熔融温度为 60~100°C, 更 优选 65~90°C, 进一步优选为 75~85°C。
5. 如段落 2~4任一项所述的制备方法, 上述步骤 (1 ) 中, 均质时间优选为 l~3h、 进一步 优选为 2h。
6. 如段落 1~5 任一项所述的制备方法, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质的重 量比为 1 :3~3: 1, 优选为 1 :(1~3)。
7. 如段落 1~6任一项所述的制备方法, 上述步骤 (2 ) 中, 所述的滴头温度为 40~120°C, 优选 40~100 °C ; 所述滴制振动频率优选为 20~300Hz、 更优选为 50~300Hz、 更优选为 20~200Hz, 更优选为 20~150 Hz、 最优选 50~150Hz; 所述振动的方式包括磁力 /电动振动的方 式或气动振动的方式。
8. 如段落 1~7任一项所述的制备方法, 上述步骤 (3 ) 中, 所述的冷却气体的温度为 0°C— 150°C、 优选-10 ~-140°〇、 进一步优选 -40°C ~-140°C、 进一步优选 -60°C ~-140°C、 更优选 -80°C -120 °C , 所述冷却气体为空气、 氮气或惰性气体。
9. 如段落 1~8 任一项所述的制备方法, 上述步骤 (3 ) 中, 所述滴丸的粒径为 1.0mm~2.0mm, 优选为 0.5mm~2mm。
10.如段落 2所述的制备方法, 其中, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质在 60~100°C的温度下加热熔融, 均质成均匀 的熔融药液, 均质时间 l~3h, 所述药物与所述滴丸基质的重量比为 1 :3~3: 1;
(2) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 在滴头温度为 60~120°C、 滴 制振动频率为 20~200Hz、 滴制压力 0.5~4.0Bar、 熔融药液粘度 700~1000cp下滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.5mm~2mm 的滴丸, 所述冷却气体的温度 0°C ~-150°C。
11.如段落 2所述的制备方法, 其中, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质投入均质机中, 以 1000~5000rpm均质混合, 时间 l~200min, 然后, 以 3000~10000rpm均质化料, 时间 l~100min, 在化料过程中, 温度保 持在 60~100°C, 得熔融药液, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1;
(2) 滴制步骤: 将所述熔融药液通过加压方式输送至滴头, 在滴头温度 40~200°C、 滴制 振动频率 20~300Hz、 滴制压力 0.5~4.0Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;。
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm~4.0mm固态滴 丸, 所述冷却气体的温度为 0~-150°C。
12. 如段落 11 所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质的重 量比为 1 :3~3: 1, 以 3000~5000rpm均质混合, 时间 10~60min, 然后, 以 4000~9000rpm均质 化料, 时间 5~30min, 在化料过程中, 温度保持在 70~90°C。
13. 如段落 11 所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质的重 量比为 1 :(1~3), 以 3000~4000rpm均质混合, 时间 10-30min, 然后, 以 4000~6000rpm均质化 料, 时间 6~30min, 在化料过程中, 温度保持在 75~85°C。
14. 如段落 11所述的制备方法, 其中, 上述步骤 (2 ) 中, 滴头温度为 70~100°C, 滴制振 动频率为 90~200Hz, 滴制压力为 1.0~3.0Bar; 优选地, 振动频率 137Hz、 加速度 4G、 滴制压 力 1.8Bar、 滴头温度 75~85°C。
15. 如段落 11 所述的制备方法, 其中, 上述步骤 (2 ) 中, 滴制速度为 10~40Kg/h, 优选
12~30Kg/h, 进一步优选 15~25Kg/h。
16. 如段落 1~15任一项所述的制备方法, 其中, 所述制备方法还包括作为步骤 (4) 的干 燥步骤, 经步骤 (3 ) 完成滴制后的低温滴丸, 经过温度 40~150°C、 优选温度 40~60°C的流化 床干燥, 干燥时间 l~4h、 优选 l~3h、 最优选为 2h, 得素丸。
17. 如段落 16所述的制备方法, 其中, 所述步骤 (4 ) 采用梯度升温干燥法: 于 -20~30°C 形成流化态, 于 15~35 °C干燥 10~120min, 于 35~55 °C干燥 10~60min, 于 55~100 °C干燥 0~60min , 优选地, 所述梯度升温干燥法如下进行: 于 0~20 °C形成流化态, 于 25 °C干燥 60min, 于 45°C干燥 30min, 于 55°C干燥 0~30min。
18. 如段落 1~17任一项所述的制备方法, 其中, 所述制备方法还包括作为步骤 (5 ) 的包 衣步骤, 所述步骤是在所述步骤 (4 ) 得到的素丸处于流化状态下, 对所述素丸进行包衣; 包 衣液浓度为 15~25wt%, 优选 18~20wt%, 其中, 包衣材料选自: 虫胶、 苯二甲酸醋酸纤维 素、 丙烯酸甲酯、 甲基丙烯酸甲酯或欧巴代; 所述包衣材料与素丸的重量比为 1 :50~1 :25。
19. 如段落 1~18任一项所述的制备方法, 其中, 所述制备方法在步骤 (1 ) 前, 还可以具 有物料预混步骤, 将所述药物浸膏或粉末加水后, 于 30~80°C搅拌 lOmin以上, 得到药物预混 料。
作为第二方面, 本发明包括如下技术方案:
20. 一种中药微滴丸, 其中, 在所述微滴丸中, 药物与基质的重量比为 1 :5~5: 1, 微滴丸的 粒径为 0.2mm~4mm, 并且, 所述微滴丸根据段落 1~19任一项所述的方法制造, 无滴丸冷凝液 残留。
21.如段落 20所述的中药微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm~2mm。
22.如段落 21所述的中药微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm~2mm。
23. —种复方丹参微滴丸, 其中, 所述的复方丹参微滴丸由重量比为 1 :5~5: 1的复方丹参活 性成分与滴丸基质制成, 所述复方丹参微滴丸的粒径为 0.2mm~4mm, 所述复方丹参活性成分 是由原药材按如下重量份制成: 丹参 75.0~90.0份、 三七 10.0~25.0份、 冰片 0.1~4.0份, 并 且, 所述的微滴丸根据段落 1~19任一项所述的方法制造, 无滴丸冷凝液残留。
24. 如段落 23所述的复方丹参微滴丸, 其中, 所述复方丹参微滴丸由重量比为 1 :3~3: 1 的 复方丹参活性成分与滴丸基质制成。
25. 如段落 24所述的复方丹参微滴丸, 其中, 所述复方丹参微滴丸由重量比为 1 :(1~3) 的 复方丹参活性成分与滴丸基质制成。
26. 如段落 23~25 任一项所述的复方丹参微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm〜2mm。
27.如段落 26所述的复方丹参微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm~2mm。
28. 如段落 23~27任一项所述的复方丹参微滴丸, 其中, 所述复方丹参活性成分是由原药 材按如下重量份制成: 丹参 80.0~86.0份、 三七 15.0~18.0份、 冰片 0.2~2.0份。
29. 如段落 23~28任一项所述的复方丹参微滴丸, 其中, 所述复方丹参活性成分是由原药 材按如下重量份制成: 丹参 82.0~84.0份、 三七 16.0~17.0份、 冰片 0.4~1.2份。
30. 一种芪参益气微滴丸, 其特征在于: 所述芪参益气微滴丸是由重量比为 1 :5~5: 1的活性 成分与滴丸基质制成, 所述芪参益气微滴丸的粒径为 0.2mm~4mm, 所述活性成分是由原药材 按如下重量份制成: 黄芪 100~200份、 丹参 50~100份、 三七 10~20份、 降香挥发油 0.5~2份 并且, 所述的微滴丸根据段落 1~19任一项所述的方法制造, 无滴丸冷凝液残留。
31. 如段落 30所述的芪参益气微滴丸, 其中, 所述芪参益气微滴丸由重量比为 1 :3~3: 1 的 活性成分与滴丸基质制成。
32.如段落 31所述的芪参益气微滴丸, 其中, 所述芪参益气微滴丸由重量比为 1 :(1~3)的活 性成分与滴丸基质制成。
33. 如段落 30~32 任一项所述的芪参益气微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm〜2mm。
34.如段落 33所述的芪参益气微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm~2mm。
35. 如段落 30~34任一项所述的芪参益气微滴丸, 其中, 所述活性成分是由原药材按如下 重量份制成: 黄芪 150~180份、 丹参 75~85份、 三七 13~18份、 降香挥发油 0.5~1份。
36. 如段落 30~35任一项所述的芪参益气微滴丸, 其中, 所述活性成分是由原药材按如下 重量份制成: 黄芪 150份、 丹参 75份、 三七 15份、 降香挥发油 1份。 具体实施方式
作为本发明的一种实施方式, 本发明的微滴丸的制备方法包括如下步骤:
( 1 ) 化料步骤: 将药物与滴丸基质在 40~120°C的温度下加热熔融, 均质成均匀的熔融药 液, 均质时间 0.5~4h, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1;
(2) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 在滴头温度为 40~200°C、 滴 制振动频率为 2~2000Hz、 滴制压力 0.5~4.0Bar、 熔融药液的粘度为 300~1500cp下进行滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.2mm~4mm 的滴丸, 所述冷却气体的温度 0°C以下。
上述步骤 (1 ) 中, 所述滴丸基质包括 PEG类、 山梨醇、 木糖醇、 乳糖醇、 麦芽糖、 淀 粉、 甲基纤维素、 羧甲基纤维素钠、 羟丙基甲基纤维素、 阿拉伯胶、 海藻酸、 糊精、 环糊精、 琼脂、 乳糖中的一种或多种组合; 优选的滴丸基质为固体 PEG, 例如 PEG- 1000、 PEG-2000, PEG-3000、 PEG-4000、 PEG-5000、 PEG-6000、 PEG-7000、 PEG- 8000 , 进一步优选 PEG- 1000、 PEG-2000、 PEG-3000、 PEG-4000、 PEG-6000、 PEG- 8000 中的一种或多种组合, 最优 选为 PEG-6000、 PEG-4000或 PEG-4000和 PEG-6000的组合。
上述步骤 (1 ) 中, 加热熔融温度优选为 60~100 °C, 更优选 65~90 °C, 进一步优选为
75~85°C。
上述步骤 (1 ) 中, 均质时间优选为 l~3h、 进一步优选为 2h。
上述步骤 (1 ) 中, 所述药物与所述滴丸基质的重量比为 1 :3~3: 1, 优选为 1 :(1~3)。
上述步骤 (2) 中, 所述的滴头温度优选为 60~120°C, 优选 60~100°C ; 所述滴制振动频率 优选为 20~300Hz、 更优选为 50~300Hz、 更优选为 20~200Hz, 更优选为 20~150 Hz、 最优选 50~150Hz; 所述振动的方式包括磁力 /电动振动的方式或气动振动的方式。 其中, 气动振动的 方式振动频率和振幅较大。 当物料粘度超过 800cp, 电动方式无法将物料有效切割, 造成滴头 堵塞, 此时若影响滴丸制备时, 可采用气动振动的方式。 本发明优选的振动方式为电动振动的 方式, 熔融药液的粘度优选为 500~1000cp、 更优选为 700~1000cp。
在滴制过程中, 利用振动波形作为过程分析技术 (PAT ) 的监测指标, 可测定滴丸的粒径 分布情况, 并可通过频闪装置对滴丸的流化状态进行实时监控。
上述步骤 (3 ) 中, 所述的冷却气体冷却是指将利用低温冷阱对下落药滴进行冷却, 使其 凝固成形。 冷却气体的温度优选为 0 °C ~-150 °C、 更优选 -10 °C— 140 °C、 进一步优选 -40°C— 140°C、 进一步优选 -60°C ~-140°C、 更优选 -80°C ~-120°C, 所述冷却气体为空气、 氮气或惰性气 体; 所述滴丸的粒径为 1.0mm~2.0mm, 优选为 0.5mm~2mm。
作为一种优选的实施方式, 本发明的微滴丸的制备方法包括如下步骤:
( 1 ) 化料步骤: 将药物与滴丸基质在 60~100°C的温度下加热熔融, 均质成均匀的熔融药 液, 均质时间 l~3h, 所述药物与所述滴丸基质的重量比为 1 :3~3: 1;
(2) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 在滴头温度为 60~120°C、 滴 制振动频率为 20~200Hz、 滴制压力 0.5~4.0Bar、 熔融药液粘度 700~1000cp下滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.5mm~2mm 的滴丸, 所述冷却气体的温度 0°C ~-150°C。
作为另一优选的实施方式, 本发明的微滴丸的制备方法包括如下步骤:
( 1 ) 化料步骤: 将药物与滴丸基质投入均质机中, 以 1000~5000rpm均质混合, 时间 l~200min, 然后, 以 3000~10000rpm均质化料, 时间 l~100min, 在化料过程中, 温度保持在 60~100°C , 得熔融药液, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1; (2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 40~200°C、 滴制振动频率 20-300HZ, 滴制压力 0.5~4.0Bar 的条件下, 经滴头振动滴制, 滴制速度与步骤 (1) 化料速度 匹配;。
(3) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm~4.0mm固态滴 丸, 所述冷却气体的温度为 0~-150°C。
其中, 优选地, 上述步骤 (1) 中, 所述药物与所述滴丸基质的重量比为 1:3~3:1, 以 3000~5000rpm 均质混合, 时间 10~60min, 然后, 以 4000~9000rpm 均质化料, 时间 5~30min, 在化料过程中, 温度保持在 70~90°C; 最优选地, 所述药物与所述滴丸基质的重量 比为 1:(1~3), 以 3000~4000rpm均质混合, 时间 10-30min, 然后, 以 4000~6000rpm均质化 料, 时间 6~30min, 在化料过程中, 温度保持在 75~85°C。
其中, 优选地, 上述步骤 (2) 中, 优选滴头温度为 70~100°C, 滴制振动频率为 90~200Hz , 滴制压力为 1.0~3.0Bar; 最优选为振动频率 137Hz、 加速度 4G、 滴制压力 1.8Bar、 滴头温度 75~85°C; 优选的滴制速度为 10~40Kg/h, 优选 12~30 Kg/h, 进一步优选 15-25 Kg/h。
进一步地, 本发明的微滴丸的制备方法还包括作为步骤 (4) 的干燥步骤, 经步骤 (3) 完 成滴制后的低温滴丸, 经过温度 40~150°C、 优选温度 40~60°C的流化床干燥, 干燥时间 l~4h、 优选 l~3h、 最优选为 2h, 得素丸。
上述步骤 (4) 中, 优选如下的梯度升温干燥法: 于 -20~30°C形成流化态, 于 15~35°C干燥
10~120min, 于 35~55°C干燥 10~60min, 于 55~100°C干燥 0~60min; 进一步优选如下的梯度升 温干燥法: 于 0~20°C形成流化态, 于 25°C干燥 60min, 于 45°C干燥 30min, 于 55°C干燥
0~30min。
上述步骤 (4) 中, 发明人经过从大量的干燥方法中进行筛选, 结果是, 步骤 (3) 所述素 丸采用低湿度环境下晾晒法、 包衣锅干燥法、 真空干燥箱烘干法、 热风循环干燥箱烘干法、 履 带式微波干燥机干燥法、 流化干燥包衣机干燥法中一种。 从成品率及产能方面考虑, 优选包衣 锅干燥法、 履带式微波干燥机干燥法和流化干燥包衣机干燥法。 从产业化的角度考虑, 优选流 化床干燥法, 更优选流化干燥包衣机干燥法。 表 1示出了不同干燥方法的优劣。
表 1
序号 干燥方式 优点 缺点
1 低湿度环 成品率较高, 若不考虑滴 (1) 对晾晒环境要求苛刻, 要求晾晒间为洁净 境下晾晒 制因素的影响, 成品率一 厂房, 相对湿度低于 30%, 温度 20°C以上, 空气 般在 95%左右。 流通; (2) 干燥周期长, 在滴丸厚度 2cm左右的 情况下, 至少需要 48h; (3) 占用大面积的厂房;
(4) 需要定期翻动; (5) 长期暴露操作, 容易 造成产品的污染。
2 包衣锅干 (1) 成品率较高, 若不 ( 1 ) 要求进风具有较低的湿度, 一般不超过 燥 考虑滴制因素的影响, 成 5g/kg; (2) 干燥效率较低, 至少需要 6h/锅; 品率一般在 95%左右; (3) 设备需单独订制; (4) 容易造成滴丸的粘
(2) 可以同机实现干燥 连而将整锅产品报废。
和包衣。
3 真空干燥 无 ( 1 ) 干燥效率较低, 要求长时间低温真空干 箱烘干 燥, 至少需要 30h/箱; (3) 设备产能低, 每平方 米干燥箱的产能难以超过 0.2kg/h; (4) 容易造成 滴丸的粘连变形, 滴丸的外观不圆整。
4 热风循环 无 (1) 干燥效率较低, 要求长时间低温干燥, 至 干燥箱烘 少需要 40h/箱; (3) 设备产能低, 每平方米干燥 干 箱的产能难以超过 O.lkg/h; (4) 容易造成滴丸的 粘连变形, 滴丸的外观不圆整; (5 ) 干燥房间的 相对湿度应低于 30%。
5 履带式微 干燥效率较高, 产能达 ( 1 ) 干燥过程很难控制, 非常容易造成滴丸的 波干燥机 20Kg/h 粘连变形, 滴丸的外观不圆整, 或干燥炭化导致 干燥 产品报废; (2 ) 干燥房间的相对湿度应低于
30%; ( 3 ) 产品的微波残留无法解决。
6 流化干燥 ( 1 ) 干燥效率较高, 产 进风湿度需要控制, 一般不超过 7.5g/kg。
包衣机干 能达 30kg/h ; ( 2 ) 可以
燥 同机实现干燥和包衣;
( 3 ) 滴丸外观圆整;
( 4 ) 成品率高, 不考虑
滴制因素的影响, 成品率
可达 98%以上; (5 ) 干
燥过程易于控制, 实时显
示滴丸水分。
进一步地, 本发明的微滴丸的制备方法还包括作为步骤 (5 ) 的包衣步骤。 该步骤是在所 述步骤 (4 ) 得到的素丸处于流化状态下, 对所述素丸进行包衣; 包衣液浓度为 15~25wt%, 优 选 18~20wt%, 其中, 包衣材料选自: 虫胶、 苯二甲酸醋酸纤维素、 丙烯酸甲酯、 甲基丙烯酸 甲酯或欧巴代。 所述包衣材料与素丸的重量比优选为 1 :50~1 :25。
为了更好地实施本发明的微滴丸的制备方法, 优选在步骤 (1 ) 前, 还可以具有物料预混 步骤, 将药物浸膏或粉末加水后, 于 30~80°C搅拌 lOmin以上, 得到药物预混料, 以保证水分 均一。 该步骤可以弥补干粉投料的缺点。
由本发明的方法制得的滴丸可以直接包装, 也可以装入胶囊壳后制成胶囊剂。 在制成胶囊 剂后, 还可增加逐粒胶囊称重的步骤, 灌装后的胶囊在包装之前进行高速逐粒称重, 以剔除可 能存在的不合格胶囊。
本发明的上述方法的特点在于: 首次将振动滴制、 气体冷却与流化干燥包衣处理的工艺创 造性地结合在一起, 并应用于滴丸制剂和滴丸胶囊制剂, 由此提升了滴丸的生产速率和成形质 量, 更简化了药品生产工序, 本发明的方法的具体优点如下:
1.将传统滴丸制备 (自然滴制 /压力滴制 +冷却液冷却) 改变为振动滴制 +气体冷却 气体冷却的工艺满足了滴丸制备中对高速滴制、 制备滴丸能力 (粒径 2.5mm以下) 以及提 高载药量的要求, 成倍地提高滴丸的载药量, 大幅降低了滴丸基质的用量和服用剂量。 另外, 从产能方面考虑, 从传统滴制的 1~2丸 /秒提升到 1000~1250丸 /秒, 极大地提高了产能; 滴制 丸径的范围从 2mm~4mm扩大到 0.2mm~4mm的滴丸, 可生产出能更好地满足胶囊灌装要求的 微滴丸; 通过调节振动参数和流化载药包衣, 可将传统滴丸的载药量从 25wt%左右提高至 50wt%以上, 滴丸基质的用量也大幅减少。
2. 由于采用低温空气、 氮气或惰性气体进行冷却, 避免了传统的采用液体石蜡、 硅油等液 体冷凝方式的后续残留溶剂处理工序 (如后续脱油处理步骤), 因而简化了操作工序, 完全无 有机溶剂残留, 并降低了滴丸制备的成本;
3. 增加流化干燥包衣工艺, 不仅解决了空气冷却方法制备滴丸在存放过程中可能出现的粘 连及成分析出、 挥发油成分降低等问题, 还能够缩短干燥时间 (从 4~24h缩短到仅需 2h)。 使 用流化包衣技术, 喷射熔融药液进行载药包衣, 可进一步提高滴丸的载药量。 也可使用该工序 喷射进行滴丸包衣, 以满足不同工艺要求 (如缓释包衣、 薄膜包衣、 糖包衣等)。 由于流化处 理方式较温和, 不仅可确保滴丸水分达到稳定值, 也提高了载药及包衣的均匀性, 不会出现传 统滴丸发生裂丸和出现白点的现象, 同时提高了产品收率。 本发明的微滴丸与现有的微滴丸在理化参数方面的比较汇总与下表 2中。
Figure imgf000010_0001
实施例
以下通过实施例对本发明的工艺进一步加以详细说明。 该实施例仅用于说明本发明, 而没 有意图对本发明构成限制。
实施例 1复方丹参微滴丸
复方丹参滴丸为天津天士力制药股份有限公司开发的活血化瘀、 理气止痛中药, 用于胸中 憋闷、 心绞痛, 其主要成分为丹参、 三七、 冰片, 其药理作用包括增加冠脉血流量, 增加心肌 耐缺氧保护缺血心肌, 抗血小板聚集防止血栓形成以及改善微循环等。
现有的复方丹参滴丸的制备方法如下: 将丹参、 三七水煮提取得到提取液, 将提取液浓缩 得到浸膏, 将浸膏和滴丸基质混合, 放入滴丸机中, 加入冰片混匀, 化料, 以液体石蜡为冷凝 剂, 经过滴制得到复方丹参滴丸。 尽管现有技术对于复方丹参滴丸的制备已经非常成熟, 但在 制备过程中仍然面临上文提到的基质使用量大、 单位载药量小等问题。
本发明所述的复方丹参微滴丸是由重量比为 1 :5~5: 1 的复方丹参活性成分与滴丸基质制 成; 优选地, 本发明的复方丹参微滴丸是由重量比为 1 :3~3: 1 复方丹参活性成分与滴丸基质制 成; 最优选地, 本发明的复方丹参微滴丸是由重量比为 1 :(1~3)复方丹参活性成分与滴丸基质组 成。
本发明所述的复方丹参活性成分是由原药材按如下重量份制成:
丹参 75.0~90.0份
三七 10.0~25.0份
冰片 0.1~4.0份。
优选地, 本发明所述的复方丹参活性成分是由原药材按如下重量份制成:
丹参 80.0~86.0份
三七 15.0~18.0份
冰片 0.2~2.0份。
最优选地, 本发明的复方丹参活性成分是由原药材按如下重量份制成:
丹参 82.0~84.0份
三七 16.0~17.0份 冰片 0.4~1.2份。
本发明所述的复方丹参活性成分是复方丹参滴丸制剂中的药物活性成分, 它是通过采用丹 参、 三七经过提取加工得到丹参三七提取物, 然后再加上冰片得到, 该活性成分的制备属于现 有技术, 可以是采用本发明的药材比例、 按照现有技术制备得到, 或者购买市售的丹参提取 物、 三七提取物以及冰片得到。 为了更好地实现本发明, 所述的复方丹参活性成分优选通过下 述方法制备得到:
( 1 ) 丹参、 三七在碱性条件下用水煎煮, 煎煮液过滤, 滤液浓缩醇沉, 取上清液滤过, 回收乙醇并浓缩, 干燥得丹参三七提取物;
(2) 加入冰片混匀即可。
优选地, 所述步骤 (1 ) 中, 在碱性条件下, 将丹参、 三七用水煎煮 1~3 次, 每次煎煮 l~3h, 过滤, 滤液 I备用, 药渣加水煎煮 1~3次, 每次煎煮 l~3h, 滤过, 滤液 II备用, 滤液 I、 II合并浓缩, 浓缩液醇沉, 静置, 取上清液, 过滤, 回收乙醇, 浓缩干燥得丹参三七提取 物。
所述的碱性条件不限于碳酸氢钠、 碳酸钠、 磷酸氢钠、 磷酸二氢钠、 氢氧化钠、 氢氧化 钾、 氢氧化镁中一种或几种, 优选控制 pH为 7.5~9.0, 以保证丹参素钠完全得到提取。
优选地, 优选加入 50~100% (v/v) 乙醇溶液 (最优选 95% (v/v) 的乙醇溶液) 醇沉, 醇 沉至醇的浓度优选为 60~75% (v/v
本发明的复方丹参微滴丸的制备方法, 包括如下步骤:
( 1 ) 化料步骤: 将重量比为 1 :5~5: 1 的复方丹参活性成分与滴丸基质投入均质机中, 以 1000~5000rpm 均质混合, 时间 l~200min, 然后, 以 3000~10000rpm 均质化料, 时间 l~100min, 在化料过程中, 物料的温度保持在 60~100°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70~200°C、 滴制振动频率为 50~300Hz、 滴制压力为 0.5~4.0Bar 的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速 度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm~4.0mm的滴丸 素丸, 所述冷却气体的温度为 0~-150°C。
经过上述步骤 (2) 和 (3 ) 后, 滴丸的丸重由传统滴丸的 23.5~27.5mg减小至 3~4mg, 可 用于胶囊灌装, 气体冷凝步骤解决了现有滴丸产品中残留液状石蜡等冷凝液的问题。
为了更好地证明本发明的微滴丸的有益效果, 通过下述试验来说明:
试验例 1两种复方丹参滴丸样品对大鼠急性心肌梗死影响的比较试验
1 . 实验动物:
SD 大鼠, 雄性, 体重 340~360g, 购自北京维通利华实验动物技术有限公司, 动物合格证 号: SCXK (京) 2007-0001。
2.药物、 试剂和仪器:
本发明的复方丹参微滴丸按照复方丹参微滴丸制备例 1进行制备。
对比药物: 国内已经上市的复方丹参滴丸, 天津天士力制药股份有限公司。
麻醉用水合氯醛、 氯化三苯基四氮唑 (TTC )。
实验仪器: MedLab-U/8C生物信号采集处理系统, 南京美易公司。
3. 实验方法
动物分组: 将试验大鼠按照体重随机分为 S组 (假手术组)、 M组 (模型组)、 Y组 (阳性 药组, 酒石酸美托洛尔, 批号: 1201039 )、 F组 (本发明的复方丹参微滴丸)、 G组 (国内产 品, 批号: 2011L16 ), 每组 10只。
造模及给药方法: 动物分组后, 灌胃给药 7d, 见表 3。 第 8d, 大鼠以 10%水合氯醛
( 3ml/kg ) 腹腔内麻醉。 麻醉后仰卧位固定于小木板上, 以大头针插入大鼠右前肢和双后肢皮 下, 连接 MedLab-U/8C生物信号采集处理系统, 记录大鼠心电图。 左胸前壁剃毛, 经口腔气管 插管, 连接动物呼吸机, 呼吸频率 80次 /min, 潮气量 3 ml/100g, 吸呼比 1 : 1。 胸部以左前外 侧切口剪断第三肋进胸, 用镊子小心提起心包膜并撕开, 大部分动物在左心耳下缘与肺动脉圆 锥间可以看见左冠状静脉主干走行, LAD 与之伴行。 用 4-0 医用缝合丝线在距左心耳下缘约 l~2mm处, 左冠状静脉主干附近的室间沟内, 将 LAD连同少量心肌组织一起缝扎。 观察见心 电图有 J点升高 O. lmV以及左心室前壁变苍白者表示模型建立成功。 然后逐层关胸, 待大鼠自 主呼吸恢复后拔除气管插管。 连续记录心电图 4h, 动物麻醉状态下剪取心脏, 切片染色, 计算 心肌梗死率; 取动物血清, 备用。
心肌梗死率 (%) =梗死区湿重 /全心湿重 X 100%
表 3分组及给药
组别 齐 11量 (mg/kg ) 给药量 预给药时间
S组 (假手术组) 110 lml/100g 7d
M组 (模型组) 223 lml/100g 7d
Y组 (阳性药组, 酒石酸美托洛尔) 4.5 lml/100g 7d
G组 (国内复方丹参滴丸) 115 lml/100g 7d
F组 (本发明药物) 84 lml/lOOg 7d
4.实验结果
4.1对心肌梗死率的影响
结果见表 4。 由表 4可见, 在预给药 7天后, M组 (模型组) 心肌梗死率显著高于 S 组 (假手术组), 说明模型成功。 G组、 F组的心肌梗死率分别为 3.38%、 3.32% , 显著低于模型 组 (5.07% ) , 且有显著性差异 (p<0.01 ), 说明两样品均具有一定的抗急性心肌梗死作用。 但 是, G组和 F组相比, 心肌梗死率无统计学上的差异 (p>0.05 )。
表 4复方丹参滴丸各组对大鼠心肌梗死率的影响
组别 动物数 全心平均湿重 (g ) 梗死区平均湿重 (g) 心肌梗死率 (%)
S组 8 0·8254±0·0294 0.0000+0.0000 0.00+0.00
M组 10 0·8207±0·0447 0·0414±0·0051 5·07±0·75
Y组 9 0.8783+0.0571 0.0233+0.0038 2·65±0·33*
G组 10 0.8493+0.0641 0·0288±0·0052 3·38±0·49*#
F组 10 0.8061+0.0668 0.0268+0.0054 3·32±0·59*# 注: 与 Μ组 (模型组) 相比, * : ρ<0.01 ; 与 Υ组 (阳性药组) 相比, #: ρ<0.01
4.2对心梗大鼠心率的影响
结果见表 5, 各组大鼠在观测时间内, 结扎 0~lh 内, 各组大鼠心率大小依次为 F组, G 组、 M组、 Y组、 S组, lh后, 各组心率均出现下降趋势。 在观察时间内, Y组、 S组的心率 变化较平稳。 各组大鼠间心率无显著性差异。
表 5复方丹参滴丸样品对大鼠心率的影响 (次 /min )
组别 动物数 Os 5s 10s 5 min lOmin 30min lh 2h 3h 4h
S组 8 390+50 390+52 400土 51 407+43 401土 57 386+69 394+58 417土 44 364土 42 358+36 M组 10 416+83447土 72436+67444+43 423土 39 423土 32 399±31 361+45 363+46 336+59
Y组 9 377土 48 423土 39 419土 41 424土 29 431+17 413土 34 421土 47 416土 33 380+66 395+52
G组 10 431土 43 452土 21 444土 24 445土 29 424土 27 422土 25 397+25 392土 40 347土 39 331+38
F组 10 449土 28 498土 7 468土 34 474土 35 466土 34 426土 40 412土 40 388±51 377土 60 365+56
5、 结论
在本实验设定的剂量下, 各组对冠状动脉结扎大鼠均具有一定的抗急性心肌梗死作用, 尤 其是本发明的微滴丸在剂量 84mg/kg时的心肌梗死率 3.38±0.49%与国内的复方丹参滴丸产品在 剂量 115mg/kg 的心肌梗死率 3.32±0.59%的疗效相似。 由此可见, 本发明的微滴丸在剂量 84mg/kg就能达到国内复方丹参滴丸产品在剂量 115mg/kg 的药效作用, 本发明的微滴丸比现 有复方丹参滴丸的疗效好, 且具有生物利用度高、 患者服用药物剂量小、 依从性好等有益效 果。
复方丹参微滴丸制备例 1
取丹参三七提取物 75g、 冰片 7.5g、 PEG-6000 165g。
( 1 ) 预混步骤: 将复方丹参活性成分加水预混, 40±10°C保温罐内搅拌 60min以上, 使复 方丹参活性成分的含水量为 13.0wt%, 得到复方丹参活性成分预混料, 备用;
(2) 化料步骤: 先将 PEG-6000加入化料罐中, 加热至 90°C, 预先熔融, 再加入复方丹 参活性成分预混料, 采用低速均质 (3200rpm ) 混合物料, 混合完成后, 提高均质速度至 5000rpm进行化料, 时间 6min, 在化料过程中, 物料的温度保持在 80±5°C。 由此, 得到熔融 药液。
( 3 ) 滴制步骤: 将上述熔融药液输送至滴头, 调节滴头的振动频率为 137Hz, 滴头温度 控制在 80°C, 药液通过加压方式 (滴制压力 1.8Bar) 流入滴头, 并从滴头底部振动滴出, 滴制 速度与步骤 (1 ) 化料速度匹配;
( 4 ) 冷凝步骤: 滴出的药滴到冷却管道中, 采用低温惰性气体冷却, 冷却温度- 115±5°C, 使滴出的药液冷却成固态滴丸;
( 5 ) 干燥步骤: 将所述滴丸进行流化干燥, 待物料在床体内形成较好的流态后, 升温至 25°C干燥 60min, 再升温至 45°C干燥 30min, 继续升温至 55°C干燥 30min, 然后降温至 30°C 以下出料。 将滴丸水分控制在 3.0~7.0wt%, 得到中间体素丸;
( 6 ) 包衣步骤: 按照包衣投料量和处方计算包衣粉用量, 取素丸重量的 4%的欧巴代配制 成浓度为 18wt%的包衣液, 搅拌 45min。 设定进风温度为 25°C, 将合格素丸投入流化床后, 提 高设定进风温度至 48 °C, 待物料温度达到 38 °C后, 开始包衣。 包衣过程中物料温度控制在 35-45 °C , 包衣完成后降温至 30°C以下出料, 筛丸, 得到中间体包衣丸。 将中间体包衣丸的增 重控制在 3.3±0.7wt%, 水分控制在 3.0~7.0wt% ;
(7 ) 制胶囊、 包装步骤: 将制成粒径为 1.0mm~2.0mm滴丸进行胶囊装填, 并通过胶囊检 重机完成 100%在线检重, 然后包装成最终产品。
其中, 滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在 载药包衣后, 为提高滴丸粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
其中, 复方丹参活性成分的制备方法如下:
( 1 ) 取丹参 83.0kg、 三七 16.0kg, 在碱性条件下用水煎煮, 煎煮液过滤, 滤液浓缩醇 沉, 取上清液滤过, 回收乙醇并浓缩, 干燥得丹参三七提取物;
(2) 加入冰片 0.8kg混匀即可。
其中, 步骤 (1 ) 中, 在碱性条件下 (pH 8.0 ), 丹参、 三七用水煎煮 2次, 每次煎煮 2h, 过滤, 滤液 I备用, 药渣加水煎煮 2次, 每次煎煮 2h, 滤过, 滤液 II备用, 将滤液 I、 II合并 浓缩, 浓缩液加入乙醇到醇浓度 70% (v/v), 静置, 取上清液, 过滤, 回收乙醇, 浓缩干燥得 丹参三七提取物。
另外, 冰片从市场上购买得到。
复方丹参微滴丸制备例 2
除丹参三七提取物是由丹参 75重量份、 三七 10重量份、 冰片 0.1重量份进行制备, 复方 丹参活性成分与 PEG-6000的重量比为 1:5夕卜, 其他与复方丹参微滴丸制备例 1相同, 制备复 方丹参微滴丸。
复方丹参微滴丸制备例 3
除丹参三七提取物是由丹参 90重量份、 三七 25重量份、 冰片 4重量份进行制备, 复方丹 参活性成分与 PEG-6000的重量比为 5:1夕卜, 其他与复方丹参微滴丸制备例 1相同, 制备复方 丹参微滴丸。
复方丹参微滴丸制备例 4
取丹参三七提取物 75g、 冰片 7.5g、 环糊精和琼脂 1:1的混合物 165g, 制备成复方丹参微 滴丸, 制备方法如下:
(1) 化料步骤: 将复方丹参活性成分与作为滴丸基质的环糊精和琼脂 1:1的混合物投入到 均质机中, 以 lOOOrpm均质混合, 时间 lmin, 然后, 以 3000rpm均质化料, 时间 lmin, 在化 料过程中, 物料的温度保持在 60°C, 由此得到熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70°C、 滴制振动频率 50Hz、 滴 制压力为 0.5Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1) 化料速度匹配;
(3) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm 的滴丸素丸, 所述冷却气体的温度为 0°C。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。 复方丹参微滴丸制备例 5
取丹参三七提取物 75g、 冰片 7.5g、 阿拉伯胶和乳糖 1:1的混合物 165g, 制备成复方丹参 微滴丸, 制备方法如下:
(1) 化料步骤: 将复方丹参活性成分与作为滴丸基质的阿拉伯胶和乳糖 1:1的混合物投入 到均质机中, 以 5000rpm均质混合, 时间 200min, 然后, 以 lOOOOrpm均质化料, 时间 lOOmin, 在化料过程中, 物料的温度保持在 100°C, 由此得到熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 300°C、 滴制振动频率为
300Hz, 滴制压力为 4.0Bar 的条件下, 经滴头振动滴制, 滴制速度与步骤 (1) 化料速度匹 配;
(3) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 4.0mm 的滴丸素丸, 所述冷却气体的温度为 -150°C。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。 复方丹参微滴丸制备例 6
取丹参三七提取物 75g、 冰片 7.5g、 乳糖醇 165g, 制备成复方丹参微滴丸, 制备方法如 下:
(1) 化料步骤: 将复方丹参活性成分与作为滴丸基质的乳糖醇投入到均质机中, 以 2500rpm均质混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 50min, 在化料过程中, 物料的温度保持在 80°C, 由此得到熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 150°C、 滴制振动频率 150Hz、 滴制压力为 2Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -100°C。
(4) 干燥步骤: 将所述滴丸采用流化干燥设备进行流化干燥, 于 50°C干燥 2h, 得干燥滴 丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料与素丸重量比为 1 :25, 包 衣液浓度为 10wt%, 于温度 40°C进行包衣, 得包衣滴丸, 包衣材料为欧巴代。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。 复方丹参微滴丸制备例 7
取复方丹参活性成分粉末 (丹参三七提取物 75g、 冰片 7.5g )、 PEG-8000 165g, 制备成复 方丹参微滴丸, 制备方法如下:
将上述复方丹参活性成分粉末加水后, 于 60°C搅拌 lOmin以上, 得到复方丹参活性成分预 混料。
( 1 ) 化料步骤: 将上述复方丹参活性成分预混料与 PEG-8000 投入到均质机中, 以 2500rpm均质混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 50min, 在化料过程中, 物料的温度保持在 80°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 150°C、 滴制振动频率 150Hz、 滴制压力为 2Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -100'C。
(4) 干燥步骤: 将所述滴丸采用流化干燥设备进行流化干燥, 于 50°C干燥 2h, 得干燥滴 丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料与素丸重量比为 1 :25, 包 衣液浓度为 10wt%, 于温度 40°C进行包衣, 得包衣滴丸, 包衣材料虫胶。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。 复方丹参微滴丸制备例 8
取复方丹参活性成分粉末 (丹参三七提取物 90g、 冰片 2g )、 PEG- 1000 270g, 制备成复方 丹参微滴丸, 制备方法如下:
将复方丹参活性成分粉末加水后, 于 30°C搅拌 lOmin以上, 得到药物预混料。
( 1 ) 化料步骤: 将上述复方丹参活性成分与 PEG-1000投入到均质机中, 以 2500rpm均 质混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 20min, 在化料过程中, 物料的温 度保持在 ioo°c, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70°C、 滴制振动频率 100Hz、 滴制压力为 1.0Bar、 加速度 1G, 滴制速度 10Kg/h的条件下, 经滴头振动滴制, 上述滴制速度 与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -80°C。
( 4 ) 干燥步骤: 将所述滴丸采用梯度升温干燥法干燥, -20°C形成流化态, 于 15 °C干燥 lOmin, 于 35°C干燥 10min, 于 55°C干燥 30min, 得干燥滴丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料与素丸重量比为 1 :25, 包 衣液浓度为 10wt%, 于温度 40°C进行包衣, 得包衣滴丸, 包衣材料为苯二甲酸醋酸纤维素。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 9
取复方丹参活性成分粉末 (丹参三七提取物 100g、 冰片 5g), PEG-4000和 PEG-6000 1 : 1 的组合 35g, 制备成复方丹参微滴丸, 制备方法如下:
将复方丹参活性成分粉末加水后, 于 80°C搅拌 lOmin 以上, 得到复方丹参活性成分预混 料。
( 1 ) 化料步骤: 将复方丹参活性成分预混料与 PEG-4000和 PEG-6000 1 : 1的组合投入到 均质机中, 以 2500rpm均质混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 80min, 在化料过程中, 物料的温度保持在 80°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 100°C、 滴制振动频率 200Hz、 滴制压力为 3.0Bar、 加速度 20G、 滴制速度 40Kg/h 的条件下, 经滴头振动滴制, 上述滴制速 度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -120°C。
( 4 ) 干燥步骤: 将所述滴丸采用梯度升温干燥法干燥, 30°C形成流化态, 于 35 °C干燥 120min, 于 55°C干燥 60min, 于 100°C干燥 60min, 得干燥滴丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料与素丸重量比为 1 :25, 包 衣液浓度为 10wt%, 于温度 35°C进行包衣, 得包衣滴丸, 包衣材料是丙烯酸甲酯。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 10
取丹参三七提取物 600g、 冰片 5g以及滴丸基质木糖醇 600g。
( 1 ) 化料步骤: 先将木糖醇加入化料罐中, 加热至 90°C, 预先熔融, 再加入复方丹参活 性成分, 混合均匀成熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 40°C、 滴制振动频率为 50Hz的条件下, 使所述熔融药液流入滴头, 并从滴头底部 滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度 -20°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 干燥温度为 75 °C, 制成粒径为 0.2mm~1.0mm的包衣微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品, 滴丸粒径 0.2~1.0mm。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
其中, 在滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载药包衣后, 为提高滴丸的粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
复方丹参微滴丸制备例 11
取丹参三七提取物 600g、 冰片 5g以及 PEG-6000和 PEG-4000滴丸基质 3000g。 ( 1 ) 化料步骤: 先将 PEG-6000和 PEG-4000加入化料罐中, 加热至 120°C, 预先熔融, 再加入复方丹参活性成分, 混合均匀成熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 80°C、 滴制振动频率为 20Hz的条件下, 使所述熔融药液流入滴头, 并从滴头底部 滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度 -80°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 干燥温度为 150°C, 制成粒径为 0.5mm~1.0mm的包衣微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
其中, 在滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载药包衣后, 为提高滴丸的粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
复方丹参微滴丸制备例 12
取丹参三七提取物 600g、 冰片 5g以及 PEG-1000滴丸基质 120g。
( 1 ) 化料步骤: 先将 PEG- 1000加入化料罐中, 加热至 40°C, 预先熔融, 再加入复方丹 参活性成分, 混合均匀成熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 40~60°C, 滴制振动频率为 200Hz的条件下, 使所述熔融药液流入滴头, 并从滴头 底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度- 100°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 20 °C形成流化 态, 25°C干燥 60min, 45°C干燥 30min, 55°C干燥 30min, 制成粒径为 3.0mm~4.0mm的包衣 微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
其中, 在滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载药包衣后, 为提高滴丸的粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
复方丹参微滴丸制备例 13
取丹参三七提取物 600g、 冰片 5g以及 PEG-6000、 PEG-4000滴丸基质 3000g。
( 1 ) 化料步骤: 先将 PEG-6000和 PEG-4000加入化料罐中, 加热至 120°C, 预先熔融, 再加入复方丹参活性成分, 投入均质机中, 以 lOOOrpm均质混合, 时间 lmin , 然后, 以
3000rpm均质化料, 时间 lmin, 在化料过程中, 物料的温度保持在 60°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 70°C, 滴制振动频率为 50Hz、 滴制压力为 0.5Bar的条件下, 使所述熔融药液流入 滴头, 并从滴头底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度 0°C, 使 滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 干燥温度为 150°C, 制成粒径为 0.2mm的包衣微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 14
取丹参三七提取物 600g、 冰片 5g以及 PEG-6000滴丸基质 1800g。
( 1 ) 化料步骤: 先将 PEG-6000加入化料罐中, 加热至 120°C, 预先熔融, 再加入复方丹 参活性成分, 投入均质机中, 以 5000rpm均质混合, 时间 200min, 然后, 以 lOOOOrpm均质化 料, 时间 lmin, 在化料过程中, 物料的温度保持在 100°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 300°C, 滴制振动频率为 300Hz、 滴制压力为 4.0Bar的条件下, 使所述熔融药液流 入滴头, 并从滴头底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度-
150°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 干燥温度为 150°C, 制成粒径为 4.0mm的包衣微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 15
取丹参三七提取物 600g、 冰片 5g以及 PEG-4000滴丸基质 2400g。
( 1 ) 化料步骤: 先将 PEG-4000加入化料罐中, 加热至 120°C, 预先熔融, 再加入复方丹 参活性成分, 以 3000rpm均质混合, 时间 10min, 然后, 以 4000rpm均质化料, 时间 5min, 在化料过程中, 物料的温度保持在 70~90°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 70°C, 滴制振动频率为 90Hz、 滴制压力为 l.OBar的条件下, 使所述熔融药液流入 滴头, 并从滴头底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度-
140°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥步骤: 将冷却后的固态滴丸进行流化干燥, 干燥温度为 150°C, 制成粒径为 1.0mm的微滴丸素丸。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 16
取丹参三七提取物 600g、 冰片 5g以及 PEG-4000滴丸基质 2400g。
( 1 ) 化料步骤: 先将 PEG-4000加入化料罐中, 加热至 120°C, 预先熔融, 再加入复方丹 参活性成分, 以 4000rpm均质混合, 时间 60min, 然后, 以 9000rpm均质化料, 时间 30min, 在化料过程中, 物料的温度保持在 90°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 100°C, 滴制振动频率为 200Hz、 滴制压力为 3.0Bar的条件下, 使所述熔融药液流 入滴头, 并从滴头底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度- 140°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥步骤: 将冷却后的固态滴丸进行流化干燥, 干燥温度为 150°C, 制成粒径为
2.0mm的微滴丸素丸。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
复方丹参微滴丸制备例 17
取丹参三七提取物 600g、 冰片 5g以及 PEG-6000滴丸基质 2000g。
( 1 ) 化料步骤: 先将 PEG-6000加入化料罐中, 加热至 90°C, 预先熔融, 再加入复方丹 参活性成分, 混合均匀成熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液通过加压方式输送到滴头, 滴头采用蒸汽夹套保温, 在 滴头温度为 80°C, 滴制振动频率为 50Hz, 使所述熔融药液流入滴头, 并从滴头底部滴出;
( 3 ) 冷凝步骤: 滴出的药滴在冷却管道内采用低温惰性气体进行冷却, 冷却温度 -20°C, 使滴出的药液冷却成固态滴丸;
( 4 ) 干燥、 包衣步骤: 将冷却后的固态滴丸进行流化干燥及载药包衣, 干燥温度为 75 °C, 制成粒径为 1.0~2.0mm的包衣微滴丸;
( 5 ) 包装步骤: 将所述包衣微滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检 重, 然后包装成最终产品。
该制备例中, 丹参三七提取物的制备方法与复方丹参微滴丸制备例 1所记载的相同。
其中, 在滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载药包衣后, 为提高滴丸的粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
经过发明人的研究发现, 比现有复方丹参滴丸产品而言, 复方丹参微滴丸制备例 2-17得到 的微滴丸同样具有疗效好、 生物利用度高、 患者服用药物剂量小、 依从性好等类似的有益效 果。 同时, 复方丹参微滴丸制备例 2-17得到的微滴丸同样具有表 2所列的优点。
实施例 2芪参益气微滴丸
芪参益气滴丸为黄芪、 丹参、 三七、 降香制成的中药制剂, 能够显著改善心肌损伤、 心功 能减退等各种症状, 治疗慢性心功能不全、 心肌炎及后遗症、 心肌梗塞恢复期、 心肌纤维化。 现有的芪参益气滴丸具有剂量小、 服用方便、 溶出速度快、 可直接经粘膜吸收入血、 生物利用 度高、 疗效高及无胃肠剌激、 无明显毒副作用的特点。
现有技术中, 制备芪参益气滴丸主要采用以下方法: 取黄芪、 丹参、 三七、 降香、 PEG- 6000 ο 将丹参和三七用水煎煮, 乙醇沉淀, 回收乙醇, 浓缩得丹参三七浸膏; 用水煎煮黄芪、 乙醇沉淀, 得黄芪醇沉物; 用水提取降香中的挥发油, 得降香挥发油; 取上述丹参三七浸膏、 黄芪醇沉物及 PEG-6000, 水浴溶化, 化匀后, 加入上述降香挥发油, 混匀, 移至滴丸机中, 制成滴丸。 尽管现有技术对于芪参益气滴丸的制备也已经非常成熟, 但在制备过程中也同样面 临上面提到的基质使用量大、 单位载药量小等问题。
本发明所述的芪参益气微滴丸是由重量比为 1 :5~5: 1 活性成分与滴丸基质组成, 所述活性 成分是由原药材按如下重量份制成:
黄芪 100~200份
丹参 50〜扇份 三七 10~20份
降香挥发油 0.5~2份
优选地, 所述活性成分是由原药材按如下重量份制成:
黄芪 150~180份
丹参 75~85份
三七 13~18份
降香挥发油 0.5~1份
最优选地, 所述活性成分是由原药材按如下重量份制成:
黄芪 150份
丹参 75份
三七 15份
降香挥发油 1份
优选本发明的微滴丸是由重量比为 1:3~3:1 的活性成分与滴丸基质制成。 最优选是由重量 比为 1:1~3的活性成分与滴丸基质制成。
本发明所述的芪参益气微滴丸活性成分是芪参益气微滴丸制剂中的药物活性成分, 它是通 过用黄芪、 丹参、 三七经过提取加工得到提取物, 然后加上降香挥发油得到, 该活性成分的制 备属于现有技术, 可以是依据本发明所述的药材比例按照现有技术制备得到, 或者购买市售的 黄芪、 丹参提取物、 三七提取物以及降香挥发油得到。 为了更好地实现本发明, 优选通过下述 方法制备得到:
(1) 在碱性条件下, 将丹参、 三七用水煎煮, 将煎煮液过滤, 滤液浓缩醇沉, 取上清液 滤过, 回收乙醇并浓缩得丹参三七浸膏;
(2) 在碱性条件下, 将黄芪煎煮, 滤过, 滤液浓缩醇沉, 滤过, 回收乙醇, 浓缩得黄芪 浸膏;
(3) 丹参三七浸膏和黄芪浸膏混合均匀, 加入降香挥发油, 得到所述活性成分。
优选地, 上述步骤 (1) 中, 在碱性条件下, 将丹参、 三七用水煎煮 1~3 次, 每次煎煮 l~3h, 过滤, 滤液浓缩, 得到浓缩液; 在浓缩液中加 70~100% (v/v) 乙醇, 使得含醇量为 50-70% (v/v), 静置, 分离上清液, 过滤, 浓缩乙醇, 得丹参三七浸膏。 最优选地, 将丹参、 三七加水和适量碱煎煮 2次, 每次煎煮 2h, 过滤, 合并滤液, 滤液浓缩至相对密度为 1.13〜 1.23 (80°C), 加乙醇使得含醇量达 65~70% (v/v), 静置 12h以上, 滤过, 回收乙醇, 浓缩成 相对密度为 1.30〜1.38 (80°C) 的浸膏, 得丹参三七浸膏。
上述步骤 (2) 中, 将黄芪用碱性水溶液煎煮 1~3 次, 每次煎煮 l~3h, 滤过, 得滤液 I, 药渣加水提取 1~3次, 每次提取 l~3h, 滤过, 得滤液 II, 滤液 I、 II合并浓缩, 加 50~100% (v/v) 乙醇醇沉 1~3次, 醇沉至含醇量为 60~80% (v/v), 静置, 滤过得滤液 III, 回收滤液 III, 采用乙醇进行浓缩, 得黄芪浸膏。
最优选地, 上述步骤 (2) 中, 将黄芪加水及适量碳酸氢钠提取 2h, 提取液滤过, 得滤液
I; 药渣继续加水提取 lh, 提取液滤过, 得滤液 II, 滤液 I、 II合并浓缩至相对密度 1.05〜1.20 (75±5°C), 浓缩液加乙醇至含醇量 60±1% (v/v), 静置 12h 以上, 分离上清液, 滤过, 上 清液减压回收乙醇至相对密度 1.18〜1.30 (60±5°C) 得浓缩液, 浓缩液加乙醇至含醇量 80士 1% (v/v), 静置 12h 以上, 分离上清液, 滤过上清液, 减压回收乙醇浓缩至相对密度 1.30〜 1.38 (70±5°C), 得黄芪浸膏。
所述的碱性条件为 pH为 7.5~9.0的环境, 所使用的碱性物质可以是碳酸氢钠、 碳酸钠、 磷 酸氢钠、 磷酸二氢钠、 氢氧化钠、 氢氧化钾、 氢氧化镁中一种或几种, 但并不限于此。
本发明的芪参益气微滴丸的制备方法, 包括如下步骤:
( 1 ) 化料步骤: 将重量比为 1 :5~5: 1 的活性成分与滴丸基质投入到均质机中, 以 1000~5000rpm 均质混合, 时间 l~200min, 然后, 以 3000~10000rpm 均质化料, 时间 l~100min, 在化料过程中, 物料的温度保持在 60~100°C, 得熔融药液;
( 2 ) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70~300°C、 滴制振动频率为 50~300Hz、 滴制压力为 0.5~4.0Bar 的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速 度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm~4.0mm的滴丸 素丸, 所述冷却气体的温度为 0~-150°C。
经过上述步骤 (2) 和 (3 ) 后, 滴丸的丸重由传统滴丸的 23.5~27.5mg减小至 3~5mg, 可 用于胶囊灌装, 气体冷凝步骤解决了现有滴丸产品中残留液状石蜡等冷凝液的问题。
芪参益气微滴丸制备例 1
取芪参益气微滴丸活性成分 80g、 PEG-6000 165g
( 1 ) 预混步骤: 将芪参益气微滴丸活性成分加水预混, 40±10°C保温罐内搅拌 60min 以 上, 使活性成分的含水量 13.0wt%, 得到芪参益气微滴丸活性成分预混料, 备用;
(2) 化料步骤: 先将 PEG-6000加入化料罐中, 加热至 90°C, 预先熔融, 再加入芪参益 气微滴丸活性成分预混料, 采用低速均质 (3200rpm) 混合物料, 混合完成后, 提高均质速度 至 5000rpm进行化料, 时间 6min。 在化料过程中, 物料温度保持在 80±5°C。 由此, 得到熔融 药液。
( 3 ) 滴制步骤: 将上述熔融药液输送至滴头, 调节滴头的振动频率为 137Hz, 滴头温度 控制在 80°C, 药液通过加压方式 (滴制压力 0.18Bar) 流入滴头, 并从滴头底部振动滴出;
( 4 ) 冷凝步骤: 滴出的药滴到冷却管道中, 采用低温惰性气体冷却, 冷却温度- 115±5°C, 使滴出的药液冷却成固态滴丸;
( 5 ) 干燥步骤: 将所述滴丸进行流化干燥, 待物料在床体内形成较好的流态后, 升温至
25°C干燥 60min, 再升温至 45°C干燥 30min, 继续升温至 55°C干燥 30min, 然后降温至 30°C 以下出料。 将滴丸水分控制在 3.0~7.0wt%, 得到中间体素丸;
( 6 ) 包衣步骤: 按照包衣投料量和处方计算包衣粉用量, 取素丸重量 4%的欧巴代配置成 浓度为 18^%包衣液, 搅拌 45min。 设定进风温度为 25°C, 将合格素丸投入流化床后, 提高设 定进风温度至 48 °C, 待物料温度达到 38 °C后, 开始包衣。 包衣过程中物料温度控制在 35-45 °C , 包衣完成后降温至 30°C以下出料, 筛丸, 得到中间体包衣丸。 将中间体包衣丸的增 重控制在 3.3±0.7wt%, 水分控制在 3.0~7.0wt% ;
(7 ) 制胶囊、 包装步骤: 将制成的粒径为 1.0mm~2.0mm滴丸进行胶囊装填, 并通过胶囊 检重机完成 100%在线检重, 然后包装成最终产品。
其中, 滴制过程中, 滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在 载药包衣后, 为提高滴丸粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
其中, 芪参益气微滴丸活性成分的制备方法如下:
( 1 ) 取丹参 75重量份、 三七 15重量份, 在碱性条件下用水煎煮, 煎煮液过滤, 滤液浓 缩醇沉, 取上清液滤过, 回收乙醇并浓缩, 得丹参三七浸膏;
( 2 ) 取黄芪 150重量份, 在碱性水溶液中煎煮, 滤过, 滤液浓缩醇沉, 滤过, 回收乙 醇, 浓缩得黄芪浸膏;
(3) 丹参三七浸膏和黄芪浸膏混合均匀, 加入降香挥发油 1重量份即可。
其中, 上述步骤 (1) 中, 丹参、 三七加水及适量碱煎煮 2次, 每次煎煮 2h, 过滤, 合并 滤液, 滤液浓缩至相对密度为 1.13〜1.23 (80°C), 加乙醇使含醇量达 65~70% (v/v), 静置 12h 以上, 滤过, 回收乙醇, 浓缩成相对密度为 1.30〜1.38 (80°C) 的浸膏, 得丹参三七浸 膏。
其中, 上述步骤 (2) 中, 将黄芪加水及适量碳酸氢钠提取 2h, 提取液滤过, 得滤液 I; 药渣继续加水提取 lh, 提取液滤过, 得滤液 II, 滤液 I、 II合并浓缩至相对密度 1.05〜1.20 (75±5°C), 浓缩液加乙醇至含醇量 60±1% (v/v), 静置 12h 以上, 分离上清液, 滤过, 上 清液减压回收乙醇至相对密度 1.18〜1.30 (60±5°C) 得浓缩液, 浓缩液加乙醇至含醇量 80士 1% (v/v), 静置 12h 以上, 分离上清液, 滤过上清液, 减压回收乙醇浓缩至相对密度 1.30〜 1.38 (70±5°C), 得黄芪浸膏。
其中, 降香挥发油为市场上购买的产品。
芪参益气微滴丸制备例 2
取丹参三七浸膏 100g、 黄芪浸膏 200g、 降香挥发油 10g以及 PEG-6000滴丸基质 900g。
(1) 化料步骤: 将将 PEG-6000加入化料罐中, 加热至 70~80°C, 预先熔融; 再加入混合 均匀的黄芪浸膏和丹参三七浸膏以及降香挥发油, 混合, 均质成熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 80°C、 滴制振动频率为 50Hz 的条件下, 经滴头振动滴制, 滴制速度与步骤 (1) 化料速度匹配;
(3) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 所述冷却气体为低温氮气, 所述冷 却气体的温度为 -40°C, 凝固成固态滴丸;
(4) 然后进行流化 150°C干燥及载药包衣, 并通过筛丸及整粒, 最后包装成最终产品。 芪参益气微滴丸制备例 3
除芪参益气微滴丸活性成分是由黄芪 100重量份、 丹参 50重量份、 三七 10重量份、 降香 挥发油 0.5重量份进行制备, 芪参益气微滴丸活性成分与 PEG-6000的重量比为 1:5外, 其他与 芪参益气微滴丸制备例 1相同, 制备芪参益气微滴丸。
芪参益气微滴丸制备例 4
除芪参益气微滴丸活性成分是由黄芪 200重量份、 丹参 100重量份、 三七 20重量份、 降 香挥发油 2重量份进行制备, 芪参益气微滴丸活性成分与 PEG-6000的重量比为 5:1外, 其他 与芪参益气微滴丸制备例 1相同, 制备芪参益气微滴丸。
芪参益气微滴丸制备例 5
取芪参益气微滴丸活性成分 80g, 环糊精和琼脂 1:1 的混合物 165g, 制备成芪参益气微滴 丸, 制备方法如下:
(1) 化料步骤: 芪参益气微滴丸活性成分与环糊精和琼脂 1:1的混合物投入到均质机中, 以 lOOOrpm均质混合, 时间 lmin, 然后, 以 3000rpm均质化料, 时间 lmin, 在化料过程中, 物料的温度保持在 60°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70°C、 滴制振动频率 50Hz、 滴 制压力为 0.5Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1) 化料速度匹配;
(3) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm 的滴丸素丸, 所述的冷却气体温度为 0°C。 芪参益气微滴丸制备例 6
取芪参益气微滴丸活性成分 80g、 阿拉伯胶和乳糖 1 : 1 的混合物 165g, 制备成芪参益气微 滴丸, 制备方法如下:
( 1 ) 化料步骤: 将芪参益气微滴丸活性成分与阿拉伯胶和乳糖 1 : 1的混合物投入到均质机 中, 以 5000rpm均质混合, 时间 200min, 然后, 以 lOOOOrpm均质化料, 时间 lOOmin, 在化 料过程中, 物料的温度保持在 100°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 300°C、 滴制振动频率 300Hz、 滴制压力为 4.0Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 4.0mm 的滴丸素丸, 所述冷却气体的温度为 -150°C。
芪参益气微滴丸制备例 7
取芪参益气微滴丸活性成分 80g、 乳糖醇 165g, 制备成芪参益气微滴丸, 制备方法如下:
( 1 ) 化料步骤: 将芪参益气微滴丸活性成分与乳糖醇投入到均质机中, 以 2500rpm均质 混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 50min, 在化料过程中, 物料的温度 保持在 80°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 150°C、 滴制振动频率 150Hz、 滴制压力为 2Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的固态素丸, 所 述冷却气体的温度为 -100'C。
(4) 干燥步骤: 将所述滴丸采用流化干燥设备进行流化干燥, 于 50°C干燥 2h, 得干燥滴 丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料虫胶与素丸重量比为 1 :25, 包衣液浓度为 10wt%, 于温度 45 °C进行包衣, 得包衣滴丸。
芪参益气微滴丸制备例 8
取芪参益气微滴丸活性成分粉末 80g、 PEG- 8000 165g, 制备成芪参益气微滴丸, 制备方 法如下:
将芪参益气微滴丸活性成分粉末加水后, 于 60°C搅拌 lOmin以上, 得到药物预混料。
( 1 ) 化料步骤: 将上述预混料与 PEG-8000投入到均质机中, 以 2500rpm均质混合, 时 间 lOOmin , 然后, 以 6000rpm均质化料, 时间 50min, 在化料过程中, 物料的温度保持在 80°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 150°C、 滴制振动频率 150Hz、 滴制压力为 2.0Bar的条件下, 经滴头振动滴制, 上述滴制速度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -100'C。
(4) 干燥步骤: 采用流化干燥设备干燥, 于 50°C干燥 2h, 得干燥滴丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料苯二甲酸醋酸纤维素与素 丸重量比为 1 :25, 包衣液浓度为 25wt%, 于温度 35°C进行包衣, 得包衣滴丸。
芪参益气微滴丸制备例 9
取芪参益气微滴丸活性成分粉末 90g、 PEG- 1000 270g, 制备成芪参益气微滴丸, 制备方 法如下: 将芪参益气微滴丸活性成分粉末加水后, 于 30°C搅拌 lOmin以上, 得到预混料。
( 1 ) 化料步骤: 将上述预混料与 PEG-1000投入到均质机中, 以 2500rpm均质混合, 时 间 lOOmin , 然后, 以 6000rpm均质化料, 时间 20min, 在化料过程中, 物料的温度保持在 100°C , 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 70°C、 滴制振动频率 100Hz、 滴制压力为 1.0Bar、 加速度 1G, 滴制速度 10Kg/h的条件下, 经滴头振动滴制, 上述滴制速度 与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -80°C。
( 4 ) 干燥步骤: 将所述滴丸采用梯度升温干燥法干燥, -20°C形成流化态, 于 15 °C干燥 lOmin, 于 35°C干燥 lOmin, 于 55°C干燥 30min, 得干燥滴丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料欧巴代与素丸重量比为 1 :25, 包衣液浓度为 20wt%, 于温度 40°C进行包衣, 得包衣滴丸。
芪参益气微滴丸制备例 10
取芪参益气微滴丸活性成分粉末 105g, PEG-4000和 PEG-6000 1 : 1的组合 35g, 制备成芪 参益气微滴丸, 制备方法如下:
将芪参益气微滴丸活性成分粉末加水后, 于 80°C搅拌 lOmin以上, 得到预混料。
( 1 ) 化料步骤: 将上述预混料与 PEG-4000和 PEG-6000 1 : 1的组合投入到均质机中, 以 2500rpm均质混合, 时间 lOOmin, 然后, 以 6000rpm均质化料, 时间 80min, 在化料过程中, 物料的温度保持在 80°C, 得熔融药液;
(2) 滴制步骤: 将上述熔融药液输送至滴头, 在滴头温度 100°C、 滴制振动频率 200Hz、 滴制压力为 3.0Bar、 加速度 20G、 滴制速度 40Kg/h 的条件下, 经滴头振动滴制, 上述滴制速 度与步骤 (1 ) 化料速度匹配;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 2mm的滴丸素丸, 所 述冷却气体的温度为 -120°C。
( 4 ) 干燥步骤: 将所述滴丸采用梯度升温干燥法干燥, 30°C形成流化态, 于 35 °C干燥 120min, 于 55°C干燥 60min, 于 100°C干燥 60min, 得干燥滴丸素丸。
( 5 ) 包衣步骤: 所述干燥滴丸素丸在流化床中包衣, 包衣材料丙烯酸甲酯与素丸重量比 为 1 :25, 包衣液浓度为 5wt%, 于温度 35°C进行包衣, 得包衣滴丸。
经过发明人的研究发现, 比现有芪参益气滴丸产品而言, 芪参益气微滴丸制备例 1-10得到 的微滴丸同样具有表 2所列的优点。
实施例 3丹参微滴丸
丹参微滴丸制备例 1
取丹参提取物 600g, 加水 60g, 加 PEG-6000 1500g, 放入化料罐中加热至 90°C, 使其完 全融化混合均匀成液体。 滴制振动频率为 20Hz, 采用红外加热保温, 滴头温度控制在 80°C, 药液加压输送至滴头。 采用低温氮气冷却, 冷却温度为 -10°C。 然后, 于 40°C进行流化床干燥 及载药包衣, 并通过筛丸及整粒, 最后包装成最终产品。
其中, 取丹参提取物可以采用现有的方法制备或者购买市售品。
丹参微滴丸制备例 2
取丹参提取物 600g, 加水 60g, 加 PEG-6000 600g, 放入化料罐中加热至 90~100°C, 使其 完全融化混合均匀成液体。 滴制振动频率为 150Hz, 滴头温度控制在 80~100°C, 药液加压输送 至滴头。 采用低温氮气冷却, 冷却温度为 -140 °C。 然后, 于 150 °C进行流化床干燥, 并用 18~20wt%包衣液包衣, 并通过筛丸及整粒, 最后包装成最终产品。
其中, 取丹参提取物可以采用现有的方法制备或者购买市售品。
实施例 4藿香正气微滴丸
藿香正气微滴丸制备例 1
取藿香正气浸膏 200g、 广藿香油 lml、 紫苏叶油 2ml、 PEG-6000 600g, 将上述原料同时 加入化料罐中, 加热至 65~85 °C, 熔融, 混合均匀成液体。 调节电动振动滴头的振动频率为 200Hz , , 滴头温度控制在 80°C, 药液通过加压方式流入滴头, 药液从滴头底部滴出到冷却管 道内, 冷却气体采用低温氮气冷却, 冷却温度为 -20°C, 得到固态滴丸。 然后, 于 60°C进行流 化干燥, 并用 15wt%包衣液包衣, 并通过筛丸及整粒, 最后包装成最终产品。
其中, 藿香正气浸膏可以采用公开号 CN100563635A、 CN 1745799A的方式制备, 广藿香 油、 紫苏叶油为市售购买。
藿香正气微滴丸制备例 2
取藿香正气浸膏 200g、 广藿香油 lml、 紫苏叶油 2ml、 PEG-6000 600g。 将全部藿香正气 浸膏和 550g PEG-6000加入到 1#化料罐中, 加热至 65~85°C, 熔融, 混合均匀成液体; 取广藿 香油 lml、 紫苏叶油 2ml、 PEG-6000 50g, 加入到 2#化料罐中, 加热至 65~85°C, 熔融, 混合 均匀成液体。 2#罐的药液通过双层滴头内层, 1#罐的药液通入双层滴头外层。 调节振动滴头的 振动频率为 200Hz, 滴头温度控制在 80°C, 药液通过加压方式流入滴头。 液滴通过低温空气进 行冷却, 冷却气体的温度为 -40°C, 得到固态滴丸。 然后, 与制备例 1同样, 进行流化干燥及载 药包衣, 并通过筛丸及整粒, 最后包装成最终产品。
其中, 藿香正气浸膏可以采用公开号 CN100563635A、 CN 1745799A方式制备, 广藿香 油、 紫苏叶油为市售产品。
实施例 5穿心莲内酯微滴丸
穿心莲内酯微滴丸制备例 1
取穿心莲内酯 400g与 PEG-6000 800g、 PEG-4000 800g。 先将 PEG-6000、 PEG-4000加入 化料罐中, 加热至 70~80°C, 预先熔融; 再加入穿心莲内酯, 混合均匀成液体。 调节气动振动 滴头的振动频率为 30Hz, 滴头温度控制在 80°C, 药液通过加压方式流入滴头, 药液从滴头底 部滴出到冷却管道内, 采用低温氮气冷却, 冷却温度为 -20 °C。 然后, 进行流化干燥并用 25\^%的包衣液包衣, 并通过筛丸及整粒, 最后包装成最终产品。
穿心莲内酯微滴丸制备例 2
取穿心莲内酯 400g与淀粉 400g。 先将淀粉加入化料罐中, 加热至 70~80°C, 预先熔融: 再加入穿心莲内酯, 混合均匀成液体。 调节气动振动滴头的振动频率为 30Hz, 滴头温度控制 在 80°C, 药液通过加压方式流入滴头, 药液从滴头底部滴出到冷却管道内, 采用低温氮气冷 却, 冷却温度为 -20°C。 然后, 进行流化干燥及载药包衣, 并通过筛丸及整粒, 最后包装成最终 产品, 滴丸粒径 0.5mm~lmm。
穿心莲内酯微滴丸制备例 3
取穿心莲内酯 1200g 与羧甲基纤维素 400g。 先将羧甲基纤维素加入化料罐中, 加热至
90-100 °C , 预先熔融; 再加入穿心莲内酯, 混合均匀成液体。 调节气动振动滴头的振动频率为 30Hz, 滴头温度控制在 80°C, 药液通过加压方式流入滴头, 药液从滴头底部滴出到冷却管道 内, 采用低温氮气冷却, 冷却温度为 -20°C。 然后, 进行流化干燥及载药包衣, 并通过筛丸及整 粒, 最后包装成最终产品, 滴丸粒径 1.5mm~2mm。
穿心莲内酯按照现有技术制备或市购。
实施例 6复方银杏微滴丸
复方银杏微滴丸制备例 1
取丹参银杏提取物 600g 以及 PEG-6000 2000g。 先将 PEG-6000加入化料罐中, 加热至 90°C, 预先熔融, 再加入丹参银杏提取物, 混合均匀成液体。 调节气动振动滴头的振动频率为 50Hz , , 滴头温度控制在 80°C。 药液通过加压方式流入滴头, 并从滴头底部滴出到冷却管道 内。 采用低温惰性气体冷却, 冷却温度 -20°C, 使滴出的药液冷却成固态滴丸。 然后, 将所述固 态滴丸进行流化干燥及载药包衣, 干燥温度为 75 °C。 将制成的粒径为 1.0mm~2.0mm滴丸进行 胶囊装填, 并通过胶囊检重机完成 100%在线检重, 然后包装成最终产品。
其中, 丹参银杏提取物按照 CN 1872099B的方法制备。
其中, 滴制过程中滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载 药包衣后, 为提高滴丸粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
复方银杏微滴丸制备例 2
取丹参银杏提取物 600g 以及 PEG-6000 2000g。 先将 PEG-6000加入化料罐中, 加热至 90°C, 预先熔融, 再加入丹参银杏提取物, 混合均匀成液体。 调节气动振动滴头的振动频率为 50Hz , 滴头温度控制在 80 °C。 药液通过加压方式流入滴头, 并从滴头底部滴出到冷却管道 内, 采用低温惰性气体冷却, 冷却温度 -20°C, 使滴出的药液冷却成固态滴丸。 然后, 将上述固 态滴丸进行流化干燥及载药包衣, 干燥温度为 75 °C。 将制成的粒径为 1.0mm~2.0mm滴丸进行 胶囊装填, 并通过胶囊检重机完成 100%在线检重, 然后包装成最终产品。
其中, 丹参银杏提取物按照 CN 101015527B的方法制备。
其中, 滴制过程中滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载 药包衣后, 为提高滴丸粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
实施例 Ί冠心丹参微滴丸
取丹参三七提取物 600g、 降香挥发油 5g以及 PEG-6000滴丸基质 2000g。 先将 PEG-6000 加入化料罐中, 加热至 90°C, 预先熔融, 再加入丹参三七提取物和降香挥发油, 混合均匀成液 体。 调节气动振动滴头的振动频率为 50Hz,, 滴头温度控制 80°C。 药液通过加压方式流入滴 头, 并从滴头底部滴出到冷却管道内。 采用低温惰性气体冷却, 冷却温度 -20°C, 使滴出的药液 冷却成固态滴丸。 然后将滴丸进行流化干燥及载药包衣, 干燥温度为 75 度。 将制成的粒径为 1.0~2.0mm滴丸进行胶囊装填, 并通过胶囊检重机完成 100%在线检重, 然后包装成最终产 品
其中, 丹参三七提取物和降香挥发油可以购买市售的丹参提取物、 三七提取物以及降香挥 发油, 丹参三七提取物也可以采用制备复方丹参滴丸或芪参益气微滴丸时制备丹参三七提取物 所采用的方法。
其中, 滴制过程中滴丸成形情况通过频闪照射加目测, 可进行实时在线监控及调整; 在载 药包衣后, 为提高滴丸粒径均匀度及圆整度, 还可加入筛丸整粒步骤。
实施例 8血塞通微滴丸
取三七总皂苷 400g与淀粉 400g。 先将淀粉加入化料罐中, 加热至 70~80°C, 预先熔融: 再加入三七总皂苷, 混合均匀成液体。 调节气动振动滴制振动频率为 30Hz, 滴头采用蒸汽夹 套保温, 滴头温度控制在 80°C, 药液通过加压方式流入滴头, 并从滴头底部滴出到冷却管道 内, 采用低温氮气冷却, 冷却温度为 -20°C。 然后, 进行流化干燥及载药包衣, 并通过筛丸及整 粒, 最后包装成最终产品, 滴丸粒径 0.5mm~lmm。
经过发明人的研究发现, 比现有的滴丸产品而言, 实施例 3-8得到的各种微滴丸同样具有 表 2所列的优点。

Claims

权利要求书
1.一种微滴丸的制备方法, 所述方法包括如下步骤:
( 1 ) 化料步骤: 药物与滴丸基质加热熔融, 得到熔融药液;
( 2 ) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 并通过振动滴制法使所述熔 融药液滴出;
( 3 ) 冷凝步骤: 滴出的药滴经过冷却气体冷却, 得到微滴丸。
2.如权利要求 1所述的制备方法, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质在 40~120°C的温度下加热熔融, 均质成均匀 的熔融药液, 均质时间 0.5~4h, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1;
(2) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 在滴头温度为 40~200°C、 滴 制振动频率为 2~2000Hz、 滴制压力 0.5~4.0Bar、 熔融药液的粘度为 300~1500cp进行滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.2mm~4mm 的滴丸, 所述冷却气体的温度为 0°C以下。
3. 如权利要求 1或 2所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述滴丸基质包括 PEG 类、 山梨醇、 木糖醇、 乳糖醇、 麦芽糖、 淀粉、 甲基纤维素、 羧甲基纤维素钠、 羟丙基甲基纤 维素、 阿拉伯胶、 海藻酸、 糊精、 环糊精、 琼脂、 乳糖中的一种或多种组合; 优选的滴丸基质 为固体 PEG, 例如 PEG-1000、 PEG-2000、 PEG-3000、 PEG-4000、 PEG-5000、 PEG-6000、 PEG-7000、 PEG-8000 , 进一步优选 PEG- 1000、 PEG-2000、 PEG-3000、 PEG-4000、 PEG- 6000、 PEG-8000中的一种或多种组合, 最优选为 PEG-6000、 PEG-4000或 PEG-4000和 PEG- 6000的组合。
4. 如权利要求 1~3 任一项所述的制备方法, 上述步骤 (1 ) 中, 加热熔融温度为 60~100°C , 更优选 65~90°C, 进一步优选为 75~85°C。
5. 如权利要求 2~4任一项所述的制备方法, 上述步骤 (1 ) 中, 均质时间优选为 l~3h、 进 一步优选为 2h。
6. 如权利要求 1~5任一项所述的制备方法, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质 的重量比为 1 :3~3: 1, 优选为 1 :(1~3)。
7. 如权利要求 1~6 任一项所述的制备方法, 上述步骤 (2 ) 中, 所述滴头温度为 60~120°C , 优选 60~100°C ; 所述滴制振动频率优选为 20~300Hz、 更优选为 50~300Hz、 更优 选为 20~200Hz, 更优选为 20~150 Hz、 最优选 50~150Hz; 所述振动的方式包括磁力 /电动振动 的方式或气动振动的方式, 优选电动振动的方式; 所述熔融药液的粘度为 500~1000cp、 优选为 700~1000cp。
8. 如权利要求 1~7任一项所述的制备方法, 上述步骤 (3 ) 中, 所述的冷却气体的温度为 0°C ~-150°C、 更优选 -10°C ~-140°C、 进一步优选 -40°C ~-140°C、 进一步优选 -60°C ~-140°C、 更 优选-801 ~-1201, 所述冷却气体为空气、 氮气或惰性气体。
9. 如权利要求 1~8 任一项所述的制备方法, 上述步骤 (3 ) 中, 所述滴丸的粒径为
1.0mm~2.0mm, 优选为 0.5mm~2mm。
10.如权利要求 2所述的制备方法, 其中, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质在 60~100°C的温度下加热熔融, 均质成均匀 的熔融药液, 均质时间 l~3h, 所述药物与所述滴丸基质的重量比为 1 :3~3: 1; (2) 滴制步骤: 将所述熔融药液通过加压方式输送到滴头, 在滴头温度为 60~120°C、 滴 制振动频率为 20~200Hz、 滴制压力 0.5~4.0Bar、 熔融药液粘度 700~1000cp下滴制;
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中冷却, 使其凝固成型, 得到粒径为 0.5mm~2mm 的滴丸, 所述冷却气体的温度 0°C ~-150°C。
11.如权利要求 2所述的制备方法, 其中, 所述方法包括如下步骤:
( 1 ) 化料步骤: 将所述药物与所述滴丸基质投入均质机中, 以 1000~5000rpm均质混合, 时间 l~200min, 然后, 以 3000~10000rpm均质化料, 时间 l~100min, 在化料过程中, 温度保 持在 60~100°C, 得熔融药液, 所述药物与所述滴丸基质的重量比为 1 :5~5: 1;
(2) 滴制步骤: 将所述熔融药液通过加压方式输送至滴头, 在滴头温度 40~200°C、 滴制 振动频率 20~300Hz、 滴制压力 0.5~4.0Bar的条件下, 经滴头振动滴制, 滴制速度与步骤 (1 ) 化料速度匹配;。
( 3 ) 冷凝步骤: 滴出的药滴在冷却气体中快速冷却, 凝固成粒径为 0.2mm~4.0mm固态滴 丸, 所述冷却气体的温度为 0~-150°C。
12. 如权利要求 11 所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质 的重量比为 1 :3~3: 1, 以 3000~5000rpm均质混合, 时间 10~60min, 然后, 以 4000~9000rpm 均质化料, 时间 5~30min, 在化料过程中, 温度保持在 70~90°C。
13. 如权利要求 11 所述的制备方法, 其中, 上述步骤 (1 ) 中, 所述药物与所述滴丸基质 的重量比为 1 :(1~3), 以 3000~4000rpm均质混合, 时间 10-30min, 然后, 以 4000~6000rpm均 质化料, 时间 6~30min, 在化料过程中, 温度保持在 75~85 °C。
14. 如权利要求 11所述的制备方法, 其中, 上述步骤 (2) 中, 滴头温度为 70~100°C, 滴 制振动频率为 90~200Hz, 滴制压力为 1.0~3.0Bar; 优选地, 振动频率 137Hz、 加速度 4G、 滴 制压力 1.8Bar、 滴头温度 75~85°C。
15. 如权利要求 11 所述的制备方法, 其中, 上述步骤 (2) 中, 滴制速度为 10~40Kg/h, 优选 12~30Kg/h, 进一步优选 15~25Kg/h。
16. 如权利要求 1~15 任一项所述的制备方法, 其中, 所述制备方法还包括作为步骤 (4 ) 的干燥步骤, 经步骤 (3 ) 完成滴制后的低温滴丸, 经过温度 40~150°C、 优选温度 40~60°C的 流化床干燥, 干燥时间 l~4h、 优选 l~3h、 最优选为 2h, 得素丸。
17. 如权利要求 16 所述的制备方法, 其中, 所述步骤 (4 ) 采用梯度升温干燥法: 于- 20~30°C形成流化态, 于 15~35°C干燥 10~120min, 于 35~55°C干燥 10~60min, 于 55~100°C干 燥 0~60min ; 优选地, 所述梯度升温干燥法如下进行: 于 0~20°C形成流化态, 于 25 °C干燥 60min, 于 45°C干燥 30min, 于 55°C干燥 0~30min。
18. 如权利要求 1~17任一项所述的制备方法, 其中, 所述制备方法还包括作为步骤 (5 ) 的包衣步骤, 所述步骤是在所述步骤 (4 ) 得到的素丸处于流化状态下, 对所述素丸进行包 衣; 包衣液浓度为 15~25wt%, 优选 18~20wt%, 其中, 包衣材料选自: 虫胶、 苯二甲酸醋酸 纤维素、 丙烯酸甲酯、 甲基丙烯酸甲酯或欧巴代; 所述包衣材料与素丸的重量比为 1 :50~1 :25。
19. 如权利要求 1~18 任一项所述的制备方法, 其中, 所述制备方法在步骤 (1 ) 前, 还可 以具有物料预混步骤, 将所述药物浸膏或粉末加水后, 于 30~80°C搅拌 lOmin以上, 得到药物 预混料。
20. 一种中药微滴丸, 其中, 在所述微滴丸中, 药物与基质的重量比为 1 :5~5: 1, 微滴丸的 粒径为 0.2mm~4mm, 并且, 所述微滴丸根据权利要求 1~19任一项所述的方法制造, 无滴丸冷 凝液残留。
21.如权利要求 20所述的中药微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm~2mm。
22.如权利要求 21所述的中药微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm~2mm。
23. —种复方丹参微滴丸, 其中, 所述的复方丹参微滴丸由重量比为 1 :5~5: 1的复方丹参活 性成分与滴丸基质制成, 所述复方丹参微滴丸的粒径为 0.2mm~4mm, 所述复方丹参活性成分 是由原药材按如下重量份制成: 丹参 75.0~90.0份、 三七 10.0~25.0份、 冰片 0.1 ~4.0份, 并 且, 所述的微滴丸根据权利要求 1~19任一项所述的方法制造, 无滴丸冷凝液残留。
24. 如权利要求 23 所述的复方丹参微滴丸, 其中, 所述复方丹参微滴丸由重量比为 1 :3-3: 1的复方丹参活性成分与滴丸基质制成。
25.如权利要求 24所述的复方丹参微滴丸, 其中, 所述复方丹参微滴丸由重量比为 1 :(1~3) 的复方丹参活性成分与滴丸基质制成。
26. 如权利要求 23~25 任一项所述的复方丹参微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm〜2mm。
27. 如权利要求 26 所述的复方丹参微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm〜2mm。
28. 如权利要求 23~27任一项所述的复方丹参微滴丸, 其中, 所述复方丹参活性成分是由 原药材按如下重量份制成: 丹参 80.0~86.0份、 三七 15.0~18.0份、 冰片 0.2~2.0份。
29. 如权利要求 23~28 任一项所述的复方丹参微滴丸, 其中, 所述复方丹参活性成分是由 原药材按如下重量份制成: 丹参 82.0~84.0份、 三七 16.0~17.0份、 冰片 0.4~1.2份。
30. 一种芪参益气微滴丸, 其特征在于: 所述芪参益气微滴丸是由重量比为 1 :5~5: 1的活性 成分与滴丸基质制成, 所述芪参益气微滴丸的粒径为 0.2mm~4mm, 所述活性成分是由原药材 按如下重量份制成: 黄芪 100~200份、 丹参 50~100份、 三七 10~20份、 降香挥发油 0.5~2份 并且, 所述的微滴丸根据权利要求 1 ~19任一项所述的方法制造, 无滴丸冷凝液残留。
31. 如权利要求 30 所述的芪参益气微滴丸, 其中, 所述芪参益气微滴丸由重量比为
1 :3-3: 1的活性成分与滴丸基质制成。
32.如权利要求 31所述的芪参益气微滴丸, 其中, 所述芪参益气微滴丸由重量比为 1 :(1~3) 的活性成分与滴丸基质制成。
33. 如权利要求 30~32任一项所述的芪参益气微滴丸, 其特征在于, 所述微滴丸的粒径为 0.2mm〜2mm。
34. 如权利要求 33 所述的芪参益气微滴丸, 其特征在于, 所述微滴丸的粒径为 lmm〜2mm。
35. 如权利要求 30~34任一项所述的芪参益气微滴丸, 其中, 所述活性成分是由原药材按 如下重量份制成: 黄芪 150~180份、 丹参 75~85份、 三七 13~18份、 降香挥发油 0.5~1份。
36. 如权利要求 30~35 任一项所述的芪参益气微滴丸, 其中, 所述活性成分是由原药材按 如下重量份制成: 黄芪 150份、 丹参 75份、 三七 15份、 降香挥发油 1份。
PCT/CN2014/082104 2013-07-11 2014-07-11 一种中药微滴丸的制备方法以及由所述方法制得的中药微滴丸 WO2015003661A1 (zh)

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JP6371841B2 (ja) 2018-08-08
GEP20186901B (en) 2018-10-10
EP3020395A4 (en) 2016-12-07
US11013694B2 (en) 2021-05-25
UA119750C2 (uk) 2019-08-12
US20160151293A1 (en) 2016-06-02
TWI653991B (zh) 2019-03-21
EP3020395B1 (en) 2021-03-03
HK1221156A1 (zh) 2017-05-26
KR20160028460A (ko) 2016-03-11
CA2916423A1 (en) 2015-01-15
EA034240B1 (ru) 2020-01-21
HUE054609T2 (hu) 2021-09-28
MX2015017651A (es) 2016-11-14
DK3020395T3 (da) 2021-05-25
ES2869918T3 (es) 2021-10-26
EA201690209A1 (ru) 2016-08-31
EP3020395A1 (en) 2016-05-18
JP2016528200A (ja) 2016-09-15
TW201536355A (zh) 2015-10-01
KR102342819B1 (ko) 2021-12-22
AU2014289765A1 (en) 2016-01-21
CA2916423C (en) 2021-10-26
US20190274962A1 (en) 2019-09-12

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