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160results about How to "Anticoagulant" patented technology

Blood occlusion device for hepatic operation

The invention discloses a blood occlusion device for a hepatic operation. The device comprises a tube body capable of being planted into a blood vessel. A displacement prevention device is arranged on the outer surface of one end of the tube body. A cavity is arranged inside the tube body. A blood occlusion device body is arranged inside the cavity. The displacement prevention device comprises an expander. The expander comprises a plurality of step protrusions evenly arranged on the outer surface of one end of the tube body. The step protrusions are in a wedge shape. An adjusting groove is formed in the surface, matched with the outer surface of the tube body, of each step protrusion. A groove is formed in the position, matched with each adjusting groove, of the tube body. According to the technical scheme, the displacement prevention device and the blood occlusion device are indispensable; if the displacement prevention device is omitted, the fixed position cannot be ensured, and the operation progress is affected; if the blood occlusion device is omitted, the predetermined effect cannot be achieved. The displacement prevention device and the blood occlusion device are operated in the operation process, so that the operation time is greatly shortened, and the survival probability of a patient is increased.
Owner:CHAMFOND BIOTECH CO LTD

Method for extracting fucoidan through biological enzymolysis process

InactiveCN106832041AHigh extraction rateThe extraction process is safe and environmentally friendlyAntinoxious agentsAntiviralsSolid phasesChemistry
The invention belongs to the technical field of fucoidan extraction and provides a method for extracting fucoidan through a biological enzymolysis process. The method comprises the following steps: grinding kelp into slurry; soaking; adding acidic cellulase and hemicellulase; adding alkaline pectinase; adding protease; adding sodium chloride and water and reacting, thereby acquiring sodium alginate jelly; adding modified attapulgite; centrifuging by using a centrifugal machine; and adding ethyl alcohol and dewatering, thereby acquiring solid-phase fucoidan. According to the method for extracting fucoidan provided by the invention, the biological enzymolysis process is adopted; on the basis of the structure and ingredients of kelp cytoderm, a defined amount of related enzyme is added in stages, so that the cytoderm is thoroughly split; the fucoidan therein is fully released, so that the extraction rate of the fucoidan is increased; the modified attapulgite is added for decolorizing and removing fishy smell in an extraction process, so that the appearance of the product is cleaner; and besides, the extraction steps are simplified, the use of the chemical raw materials is reduced and the purpose of environmental protection is achieved.
Owner:安徽天安生物科技股份有限公司

High-calcium seafood flavor soup base and preparation method thereof

The invention provides a high-calcium seafood flavor soup base and a preparation method thereof. The preparation method comprises the following steps: firstly smashing and grinding fishbones until the granularity is 400-600 meshes, so as to obtain ultramicro fishbone powder, and then performing enzymolysis on blue clam meat by using papain and flavourzyme so as to obtain blue clam extractive; performing enzymolysis on shrimp leftovers by using the flavourzyme and a compound enzyme which consists of a compound protease and a neutral protease so as to obtain shrimp leftover extractive; uniformly mixing the blue clam extractive, the shrimp leftover extractive, the ultramicro fishbone powder, edible salt, monosodium glutamate, corn starch, disodium 5'-ribonucleotide, ascorbic acid, spring onion powder and garlic powder, adding dehydrated broccoli and dehydrated carrots and preparing the seafood flavor soup base. The high-calcium seafood flavor soup base has the advantages of being delicious in taste, convenient to eat, nutritive and healthy; the preparation method provided by the invention has the advantages that the additional value of the blue clam and leftovers such as fishbones, shrimp heads and shrimp shells, which are from aquatic product processing, is improved, and the environmental pollution is avoided.
Owner:BOHAI UNIV

Zwitter-ion waterborne polyurethane resisting protein and microorganism adsorption

The invention provides zwitter-ion waterborne polyurethane resisting protein and microorganism adsorption.According to the preparing method, monomer-dimethylamino-1,3-propylene glycol (PEDA) with di-hydroxy and tertiary amino is prepared through the Eschweiler-Clarke methylation, then PEDA is introduced to a waterborne polyurethane main chain through the addition polymerization reaction to obtain polyurethane (NPU) with tertiary amino, NPU reacts with an ester compound to obtain zwitter-ion polyurethane, finally, a neutralizing agent is added for neutralizing, and the mixture is emulsified in water to obtain zwitter-ion waterborne polyurethane.A polyurethane material can be endowed with the self-emulsifying performance and the protein adsorption resisting performance due to existence of zwitter-ions, and formation of biology defiling is prevented.In the aspect of biomedical application, due to existence of the zwitter-ions, the biocompatibility of the polyurethane material can be improved, adsorption of protein, blood platelet and the like can be reduced, and therefore a coating has anticoagulation performance.Zwitter-ion waterborne polyurethane has a good application prospect in the aspects of water-based paint for leather and biomedical coatings.
Owner:四川创智炜业科技有限公司

Cationic angelica polysaccharide nanoparticle gene delivery system and preparation method thereof

The invention discloses a cationic angelica polysaccharide nanoparticle gene delivery system. The system is a gene delivery system of angelica polysaccharide combined DNA (Deoxyribonucleic Acid) plasmids modified by amine compounds, wherein molecular weight distribution of angelica polysaccharides is 30 to 50KD and 80 to 100KD; the mass ratio of the cationic angelica polysaccharide to the DNA plasmids is (1-200):1; and the particle diameter of the cationic angelica polysaccharide-DNA plasmid nancomposite is 21 to 77nm. The system has the characteristics that: 1, the angelica polysaccharide has various biological activities such as immune regulation activity, anti-aging activity, anticoagulation activity and the like, is safe and biologically degradable, does not have immunogenicity and isprepared with a simple, economic and convenient process; and 2, all the three cationic angelica polysaccharides have good DNA plasmid combination effect and gene delivery expression effect. Positive charges carried by primary amine, secondary amine and tertiary amine groups combined with saccharide chains can be effectively combined with the DNA plasmids with negative charges through an electrostatic effect, so that the plasmids are protected from being degraded by various enzymes inside and outside cells.
Owner:JIANGSU UNIV

Coconut juice and salted meat dried beancurd and preparation method thereof

The invention discloses coconut juice and salted meat dried beancurd which is prepared from the following raw materials in parts by weight: 100-110 parts of yellow beans, 1-1.1 parts of green olives, 0.8-0.9 part of fructus amomi, 1-1.2 parts of flax stems, 0.9-1.1 parts of elatostema umbellatum, 0.8-1 part of apocynum venetum, 1-1.3 parts of fructus viticis, 10-15 parts of lean pork, 3-4 parts of spinach, 3-4 parts of potatoes, 2-3 parts of malt, 3-4 parts of pearl barley, 1-2 parts of galangal, 5-6 parts of coconut juice, 2-3 parts of sesame, 2-3 parts of peanuts, 1-2 parts of corn oil, 2-3 parts of salt, 2.-2.5 parts of gypsum and 4-5 parts of a nutritional additive. The dried beancurd has the peculiar aroma of salted meat when eaten, so that the appetite is improved; due to addition of the coconut juice, the dried beancurd is relatively fragrant and sweet; the coconut juice contains rich vitamin C and minerals such as calcium, phosphorus, iron, potassium, magnesium, sodium and the like, is a drink rich in nutrition, and has the effects of strengthening the heart, promoting diuresis, expelling parasites and arresting vomiting and diarrhea; in addition, various Chinese herbal medicines are added in a processing process, so that the dried beancurd has the effects of relieving sore-throat, clearing toxic materials, promoting the circulation of qi, benefiting the stomach, reducing blood fat, resisting blood coagulation, clearing away heat, removing dampness and promoting blood circulation to remove stasis.
Owner:ANHUI RENRENFU BEAN IND

Preparation method for multifunctional hydrogel used for 3D printing

The invention provides a preparation method for multifunctional hydrogel used for 3D printing.Raw herbal materials of radix angelica sinensis and radix astragali are mixed and smashed, and then a water-extraction and alcohol-precipitation method is used for extracting radix angelica sinensis and radix astragali polysaccharides; radix angelica sinensis and radix astragali polysaccharide powder is added into a dry reaction kettle, then ethyl alcohol is added, NaIO4 with the mass 0.4-0.6 time that of the radix angelica sinensis and radix astragali polysaccharides is dissolved in 200 ml of water, and the solution is added into a reaction system for reacting for 8 h in a lucifugal state; glycol is added, absolute ethyl alcohol with the volume about 2 times that of the reaction system is added into the reaction system, stirring is carried out for 10 min before suction filtration, then a dialysis bag with the molecular cut-off of 3,500 is used for dialysis for 72 h, drying is carried out for 12 hours at the temperature of 50 DEG C, and oxidized radix angelica sinensis and radix astragali polysaccharides are obtained; the oxidized radix angelica sinensis and radix astragali polysaccharides are weighed and dissolved in distilled water according to the mass-to-volume ratio of 1:20, N,O-carboxymethyl chitosan with the mass 1-3 times that of the oxidized radix angelica sinensis and radix astragali polysaccharides is weighed and dissolved in distilled water according to the mass-to-volume ratio of 1:10, the two solutions are mixed in an isovolumetric mode, standing is carried out for 10 min at room temperature, and the multifunctional radix angelica sinensis and radix astragali polysaccharide gel is obtained.
Owner:甘肃中科博瑞生物工程有限公司

Preparation method of Xinhui pericarpium citri reticulatae enzyme beverage having anti-tumor and immunity enhancing functions

ActiveCN108094804ALow extraction rateHigh total flavonoid content extraction rateFood ingredient functionsMetaboliteFood safety
The invention discloses a preparation method of a Xinhui pericarpium citri reticulatae enzyme beverage having anti-tumor and immunity enhancing functions. The preparation method includes steps of: 1)crushing a national geographical indication protection product, Xinhui pericarpium citri reticulatae and Xinhui tangerine whole fruits (including peel, pulp, segment membrane, and seeds) in a crushingsystem; 2) fermenting the crushed raw material through combination of natural fermentation and modern fermentation technology; 3) after the fermentation is completed, performing solid liquid separation and delivering the materials to a blending and homogenizing system for performing low- and high-pressure homogenization respectively; 4) after the homogenization, sterilizing and fill-packaging theproduct. In the invention, through double-direction fermentation, solid liquid separation, blending, low- and high-pressure homogenization, sterilization and medium/high-temperature fill-packaging, adifficult problem of food safety in the industry is completely solved, and the total flavones, crude polysaccharides, probiotics, probiotic active factors, and Xinhui tangerine metabolite, which arehigh in content in the Xinhui pericarpium citri reticulatae and Xinhui tangerine, are maintained as most as possible.
Owner:广东新宝堂生物科技有限公司

Preparation process of dalteparin sodium

The invention discloses a preparation process of dalteparin sodium. The preparation process comprises the following steps: preparing a heparin sodium solution, a heparin degradation fluid, a reducing solution and a crude product, refining, freeze-drying and the like. The average molecular weight of the obtained product is 5,500 to 6,500, the peak molecular weight is 3,500 to 6,000, a component with the molecular weight of less than 3,000 is not greater than 13% , a component with the molecular weight of greater than 8,000 is not greater than 15%, anti-Xa activity is more than or equal to 130IU / mg. The invention has the advantages of rich source of raw materials, high yield, stable and reliable quality, high purity, low cost, simple process, easiness in operation and no waste discharge. The dalteparin sodium has the anticoagulant, antithrombotic, anti-tumor, anti-inflammatory, anti-allergy and blood lipid regulating effects, thereby having a significant curative effect. The dalteparin sodium can be used for preventing preoperative and postoperative thrombosis of general surgery, orthopedic surgery and neurosurgery, effectively preventing venous thromboembolism of ischemic stroke patients, greatly reducing the risk of stroke, effectively preventing the solidification caused by extracorporeal circulation of blood, effectively preventing the instable coronary heart disease, and having a wide usable range.
Owner:HEBEI CHANGSHAN BIOCHEM PHARMA

Preparation method of sea cucumber egg fermentation product with functions of lowering blood pressure and resisting blood coagulation

The invention discloses a preparation method of a sea cucumber egg fermentation product with functions of lowering blood pressure and resisting blood coagulation. The preparation method of the sea cucumber egg fermentation product with the functions of lowering blood pressure and resisting blood coagulation comprises the following steps: washing sea cucumber eggs, and freeze-drying the washed sea cucumber eggs, so that freeze-dried sea cucumber egg powder is prepared for later use; mixing the freeze-dried sea cucumber egg powder with water, adding glucose, and adjusting the initial pH, so that a sea cucumber egg basic culture medium is prepared; sterilizing the basic culture medium; adding a bacillus natto bacterial suspension, and carrying out shaking culturing, so that a sea cucumber egg fermentation broth is prepared; centrifuging the sea cucumber egg fermentation broth, and collecting the obtained supernatant; and then, concentrating the supernatant, and freeze-drying the concentrate, so that the sea cucumber egg fermentation product freeze-dried powder with the functions of lowering blood pressure and resisting blood coagulation is prepared. The sea cucumber eggs are fermented with the bacillus natto according to the preparation method, so that fibrinolytic enzymes with the effect of dissolving thrombus are produced; moreover, polypeptides which are easy to absorb and have the functions of resisting blood coagulation and lowering blood pressure are also produced. The sea cucumber egg fermentation product can be directly eaten as a food, or prepared into health-care functional products after further developments, including concentrating, separating and so on.
Owner:DALIAN POLYTECHNIC UNIVERSITY
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