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78 results about "Oral emulsion" patented technology

Chemical complexing directional separation and purification method for preparing high-purity beta-elemene raw material medicament

The invention provides a method for preparing high-purity beta-elemene from a low-content (over 1 percent) elemene raw material, which simplifies the steps of process operation, improves the production efficiency from an initial raw material to the high-purity beta-elemene, and reduces production cost. Compared with the prior art, the method comprises the following main different points: volatile oil constituents with large polarity is removed from the elemene raw material with the content over 1 percent under the action of silica gel column chromatography; then impurity constituents with small polarity is removed form a residual oil phase by a silver nitrate complexation extraction method and silver nitrate bonded silica gel column chromatography; and finally the beta-elemene with the content of between 95.0 and 99.9 percent is obtained through distillation under reduced pressure or rectification. The raw material medicament can be produced into oral administration preparations such as oral emulsions, capsules and the like, and can also be produced into non-intestinal administration preparations such as emulsion injections, water injections, cutaneous permeable agents, lung spray formulations, suppositories and the like. The experimental method has novel design and concise operating steps, obviously improves the yield, and reduces production cost.
Owner:沈阳万爱普利德医药科技有限公司

Brucea javanica oil enteric-coated microcapsule, preparation method and application thereof

The invention belongs to the technical field of medicines and foods, relates to an enteric-coated microcapsule of an oily medicine or food, a preparation method and application thereof, in particular to the brucea javanica oil enteric-coated microcapsule, the preparation method and application thereof. The preparation method comprises the following steps: adding lecithin and an antioxidant to brucea javanica oil to absorb the oil to porous starch so as to obtain an oily soft material; adding an adhesive to the oily soft material, stirring at a high speed, granulating and then sieving to obtain a core material; and finally placing the core material in a bottom-spraying fluidized bed, and then spraying enteric-coated coating liquid to obtain the enteric-coated microcapsule. The brucea javanica oil enteric-coated microcapsule can conceal stench of the brucea javanica oil, avoid nausea and gastric stimulation, is easier to accept by patients, and has stability better than that of oral emulsion and more stable and regular drug release compared with single capsule; and the brucea javanica oil enteric-coated microcapsule and a further preparation thereof are applicable to treatment of various cancers such as lung cancer, brain metastasis, liver cancer and the like and adjunctive treatment after radiotherapy and chemotherapy.
Owner:SHENYANG PHARMA UNIVERSITY

Oil-in-water composite nanometer emulsion loaded with hydrophobic medicine and nutrients and preparation method thereof

The invention belongs to the technical field of medicine, particularly relates to oil-in-water composite nanometer emulsion loaded with hydrophobic medicine and nutrients and a preparation method thereof. The oil-in-water composite nanometer emulsion is characterized by being obtained by introducing protamine into a protein-polysaccharide covalence grafting emulsion. An emulsion drop is structurally characterized in that an oil drop containing hydrophobic medicine and nutrients is used as an inner core; globulin/protamine is used as an oil-water interface film; polysaccharide/protamine is positioned outside the oil drop so as to maintain the dispersion stability of the oil drop in the water phase and to promote the absorption characteristics. The prepared oil-in-water composite nanometer emulsion can be used as an oral preparation of hydrophobic medicine and nutrients. Compared with the injection preparation of the corresponding medicine, the prepared emulsion has the advantages that the oral administration efficacy can reach 30 to 40 percent of the injection preparation; under the administration condition of reaching the same treatment effect, the prepared oral emulsion has lowertoxicity than the injection preparation; in addition, the administration is more convenient.
Owner:FUDAN UNIV

Pulsatilla chinensis total saponin oral emulsion and preparation method thereof

The invention belongs to the technical field of medicine, and relates to a pulsatilla chinensis total saponin oral emulsion and a preparation method thereof. The emulsion comprises the following components: 0.13%-13.5% of pulsatilla chinensis total saponins, 5%-50% of medicinal oil, 1%-30% of emulsifiers, 0-10% of auxiliary emulsifiers, 0.1%-15% of anti-oxidants, and the balance of purified water. The emulsion can be prepared by methods such as phase inversion emulsification method, PIT emulsification method, alternate liquid feeding emulsification method, ultrasonic wave emulsification method, low-energy emulsification method, micro-fluidization method, and the like. The pulsatilla chinensis total saponins provided by the invention are indissolvable drugs, and have irritation to gastrointestinal tracts. The dispersity of emulsion droplets in the emulsion is great, which facilitates drug absorption and increases bioavailability; the emulsion enables the drugs to be located in oil-water interfacial films or oil drop nuclei, which prevents direct contact of the drugs with gastrointestinal tracts, and thus reduces the gastrointestinal tract irritation of the drugs. The emulsion is a good carrier of pulsatilla chinensis total saponins; the addition of the auxiliary emulsifiers solves the problem of poor stability of common emulsions; when the emulsion is centrifuged at a rotating speed of 4000 r/min for 30 min, no layering phenomenon is caused; the bioavailability is high; and the stability is good.
Owner:JIANGXI HERBFINE HI TECH

Seabuckthorn seed oil oral emulsion with gastric mucosa protective effect and preparation method and use thereof

The invention belongs to the technical field of medicines, and in particular relates to a seabuckthorn seed oil oral emulsion. The seabuckthorn seed oil oral emulsion is characterized by being prepared from the following components in percentage by weight: 1-20% of seabuckthorn seed oil, 0.5-30% of emulsifier, 0.1-20% of assistant emulsifier, 0.001-5% of antioxidant, 0-0.5% of corrigent and the balance of purified water. The preparation method is emulsification. Compared with the existing products, the seabuckthorn seed oil oral emulsion has the advantages that dispersibility of drops in emulsion droplet is good, and the superficial area is large and is favorable to the absorption of the seabuckthorn seed oil and exerting of the efficacy, so that the bioavailability is improved and bad odor and taste of oil can be covered. The emulsion prepared is suitable for oral administration. The pharmacodynamic experiment shows that the oral emulsion has better effect as compared with crude oil, and the use dose of the crude oil can be greatly reduced. Compared with chemical medicines, the emulsion provided by the invention is free from toxic and side effect, remarkable in curative effect and wide in adaptation disease, and has great social and economic values.
Owner:史小军

Vitamin K1 lyophilized oral emulsion and preparation method thereof

The invention provides a vitamin K1 lyophilized oral emulsion and a preparation method thereof, and relates to the technical field of medicines and medicine manufacture. The emulsion is prepared from the following components in percentage by weight: 0.125-1 percent of vitamin K1, 5 percent of alpha-cyclodextrin, 91.5-92.5 percent of distilled water, 2.5-3.5 percent of medium chain triglyceride, and 0.7 percent of lactose. The vitamin K1 oral bionic emulsion provided by the invention is an orderly single-layer colloid particle shell formed by self-assembly of colloid particles, and is stabilized in the oil-water interface. Compared with an injection, tablets and a traditional emulsion, the vitamin K1 lyophilized oral emulsion has the advantages that a surfactant and an organic solvent which have a sensitization risk do not need to be added in the process, so that adverse reactions are reduced; the preparation method adopting the lyophilization process has the characteristics of stable dynamics and thermodynamics, and the emulsion has good re-dissolubility after 0.1-0.2 percent of NaCl is added; and breast milk is imitated in an all-sided manner from the composition of auxiliaries and preparation and the physicochemical property, so that the new-born specificity of the vitamin K1 lyophilized oral emulsion can be realized.
Owner:HAINAN WEI KANG PHARMA QIANSHAN
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