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178 results about "Hyaluronates" patented technology
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Knee joint prosthesis and hyaluronate compositions for treatment of osteoarthritis
A medical device and methods to relieve joint pain and adapted for knee joint repair, replacement and augmentation. The invention discloses joint lubricant, particularly hyaluronate compositions and methods for treatment of osteoarthritis.
Owner:INTERSECT PARTNERS
Stabilized Glycosaminoglycan Preparations and Related Methods
Compositions comprising a glycosaminoglycan (e.g., a hyaluronan, hyaluronic acid, hyaluronate, sodium hyaluronate, dermatan sulfate, karatan sulfate, chondroitin 6-sulfate, heparin, etc.) in combination with at least one component selected from; i) polyglycols (e.g., polyethylene glycol), ii) long chain hydroxy polyanionic polysaccharides (e.g., dextran, sodium alginate, alginic acid, propylene glycol alginate, carboxymethyl cellulose and carboxyethyl cellulose, hydroxyl ethyl starch, hydroxyl propyl methyl cellulose, hydroxy propyl ethyl cellulose, hydroxy propyl cellulose, methyl cellulose, polylysine, polyhistidine, polyhydroxy proline, poly ornithine, polyvinyl pyrolidone, polyvinyl alcohol, chitosan, etc.) and iii) long chain Nitrogen containing polymers (e.g., Polylysine, Polyvinylpyrrolidone, and polyvinyl alcohol). The invention also includes methods for using such compositions (e.g., as substance delivery materials, tissue fillers or bulking agents, as moistening or hydrating agents, etc.)
Owner:S K PHARMA INC
Silk-fibroi and hyaluronic-acid (HA) composite gel for injection and preparation and application thereof
ActiveCN102836465AIncreased resistance to enzymatic hydrolysis in vitroReduce the rate of degradationSurgeryTissue repairMicrosphere
The invention discloses a silk-fibroi and hyaluronic-acid (HA) composite gel for injection and the preparation and application thereof. The composite gel is prepared from the following raw materials by weight: 1 part of silk fibroi microspheres, 1-50 parts of hyaluronate and 0.08-4 parts of crosslinking agent. Compared with the traditional hyaluronic-acid purely-crosslinked gel, due to the addition of the silk fibroi particles, the degradation rate of the composite gel is reduced effectively, the tissue repairing and filling time is prolonged and the effectiveness of the materials is improved, and due to the addition of the HA, the water absorption, the lubrication degree and the water storage function of the materials are improved. Compared with the silk fibroi particles and the HA particles mixed by adopting the pure physical method, because the silk fibroi particles are wrapped in the gel HA particles, the silk fibroi particles and the HA particles are mixed more uniformly, thus the prepared gel particles have low inflammatory response and good biocompatibility, and the safety of the materials is improved.
Owner:ZHEJIANG XINGYUE BIOTECH
Cross-linked hyaluronic acid cell-scaffold material and preparation method and application
ActiveCN104225677APromote regenerationProvide temporary protectionOrganic active ingredientsSurgical drugsCross-linkFreeze-drying
The invention relates to a cross-linked hyaluronic acid cell-scaffold material and its preparation method and application. The cross-linked hyaluronic acid cell-scaffold material is obtained by crosslinking of high-molecular hyaluronate and low-molecular hyaluronate. The proportion of hyaluronate disaccharide molecules which take part in the crosslinking is 0.5%-20%, and expansion rate of the hyaluronate disaccharide molecules in an isotonic solution is 80%-110%. The preparation method of the cell-scaffold material comprises two freeze drying steps. Hyaluronate mixed with a cross-linking agent is formed firstly; after a heating reaction, water is added for swelling to form gel; and freeze drying is then carried out to obtain the porous scaffold material. The scaffold has abundant pores, has a certain mechanical strength and pore size and has good hydroscopicity and biocompatibility. The scaffold can be used as a tissue engineering cell-scaffold in promoting cartilage injury repairing and also can be used for preparing a haemostasis anti-adhesion material.
Owner:INST OF BIOPHARM OF SHANDONG PROVINCE
Knee joint prosthesis and hyaluronate compositions for treatment of osteoarthritis
Owner:INTERSECT PARTNERS
In-situ cross-linkable polymeric compositions and methods thereof
InactiveUS20140287061A1Quick implementationRaise the ratioBiocideHeavy metal active ingredientsCross-linkCrosslinked polymers
A biocompatible polymeric composition for cross-linking in-situ in a wound is disclosed comprising 1) one or more polyanionic polymers such as alginates or hyaluronates, able to be cross-linked the surface of the wound and 2) one or more polycationic polymers such as chitosan or DEAE-Dextran, that assists in the solidification process as well as speeds up hemostasis without the need for applying pressure. The biocompatible polymeric composition may further comprise a cross-linking agent such as aqueous calcium chloride. The invention encompasses an initial polymeric composition, the solidified matrix cross-linked and integrated at the wound site, including the methods of using, applying, and cross-linking the composition.
Owner:CRESILON INC
Method for preparing oligomeric hyalurate by digestion method, and oligomeric hyalurate and application thereof
ActiveCN102876748ALow costImprove stabilityMicroorganism based processesFermentationAntioxidant capacityKetone
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD
Mesenchymal stem cell and cytokine preparation having treatment effects on premature ovarian failures and perimenopausal syndromes, and preparing method for preparation
PendingCN104958319APracticalRestorative effectOrganic active ingredientsPeptide/protein ingredientsDuring menopauseSide effect
The invention belongs to the field of biological medicines, and particularly discloses a mesenchymal stem cell and cytokine preparation having treatment effects on premature ovarian failures and perimenopausal syndromes, and a preparing method for the preparation. The preparation is composed of umbilical cord or placenta mesenchymal stem cells and cytokines, as well as hyaluronate which is used for bearing the umbilical cord or placenta mesenchymal stem cells and cytokines and has the slow-release and anti-inflammatory effects; and the preparation is injected into a part of the endometrium and ovary in a targeted manner to be slowly released and absorbed. The curative effect of repairing the ovary and endometrium can be achieved, functional ovulation can be promoted, the premature ovarian failures can be treated, and the various perimenopausal syndromes can be remitted. Compared with an existing intravenous re-transfusion and intervention path, untoward effects of intravenous transfusion are avoided through the preparation and a using method of the preparation, abdomen and local wounds caused by interventional treatment are avoided, and side effects and hurts caused by treatment to a patient can be effectively prevented, so that the preparation is safer and more effective, is high in practicability and easy to popularize, and has the huge application value.
Owner:CHENGDU QINGKE BIOTECH
Composition containing hyaluronic acid substances and ectoine substances
ActiveCN108685759AInhibition formationAvoid damageOrganic active ingredientsCosmetic preparationsAdditive ingredientMagnesium salt
The invention provides a composition containing hyaluronic acid substances and ectoine substances. The composition comprises the two substances according to a mass ratio of 50:1 to 1:50, and the masspercentage of the composition is 0.001% to 100%. The hyaluronic acid salt includes but not limited to sodium salt, potassium salt, calcium salt, zinc slat or magnesium salt, and the molecular weight is smaller than 106Da; the ectoine substance is ectoine or salt or / and ester acceptable in cosmetic or medicine field, hydroxyl ectoine or salt or / and ester acceptable in cosmetic or medicine field, and the combination thereof. The composition can be used as whitening, anti-inflammatory, moisturizing, and after-sun injured skin repair components in cosmetics or medicines. The composition can reachsynergistic function in moisturizing, whitening, inflammation diminishing, sun screening, and after-sun injured skin repair.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD +1
Hyaluronic acid nanoparticles
InactiveUS20060188578A1Raise the potentialEasy to controlBiocideOrganic active ingredientsPolymer scienceIonic polymerization
The invention relates to hyaluronic acid nanoparticles for the administration of at least one active ingredient. The inventive nanoparticles comprise hyaluronic acid in salt form a positively-charged polymer, a polyanionic salt and at least one active ingredient. The method of obtaining the aforementioned nanoparticles comprises the following steps consisting in: preparing an aqueous solution of a hyaluronic acid salt, preparing an aqueous solution of a cationic polymer, adding a polyanionic salt to the solution of the hyaluronic acid salt, and stir-mixing said solutions such as to produce the nanoparticles, the active ingredient being dissolved in one of the initial solutions or in the suspension of nanoparticles obtained in order to be absorbed on the nanoparticles. The invention also relates to pharmaceutical and cosmetic compositions comprising the above-mentioned nanoparticles.
Owner:ADVANCELL ADVANCED IN VITRO CELL TECH
Production of defined monodisperse heparosan polymers and unnatural polymers with polysaccharide synthases
Owner:THE BOARD OF RGT UNIV OF OKLAHOMA
Low molecular hyaluronate, preparation method and purpose thereof
ActiveCN103255187ALow costHigh purityOrganic active ingredientsCosmetic preparationsAntioxidant capacityHyaluronidase
The invention belongs to the fields of enzymology and pharmaceutical chemistry, and relates to the low molecular hyaluronate, preparation method and purpose thereof. Concretely, the preparation method comprises a degradation step of hyaluronic acid or salt thereof whose molecular weight is greater than 1000 kDa by hyaluronidase prepared by Bacillus spp whose preservation number is CGMCC No. 5744 or SEQ ID No:2 coded hyaluronidase. The preparation of low molecular hyaluronic acid or salts thereof by using hyaluronidase produced by Bacillus spp of the present invention has the advantages of simple operation, mild condition, non-destroy of the product structure and low cost. The product is suitable for large scale industrialized production. The low molecular hyaluronate prepared by the invention has the advantages of good transdermal absorbency, good purity, non-cytotoxicity, good antioxidation, etc., and can be used in the fields of cosmetic, foodstuff and medicine.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD
Application of hyaluronic acid and hyaluronate in preparation of composition for treating and alleviating xerostomia
ActiveCN103405470APromote healingImprove oral environmentOrganic active ingredientsDigestive systemPotassiumWound healing
The invention provides an application of hyaluronic acid and hyaluronate in preparation of a composition for treating and alleviating xerostomia and the composition for treating and alleviating xerostomia. As hyaluronic acid and hyaluronate thereof are in double helix columnar structures, and massive hydroxyls exist inside the double helix structures, the hyaluronic acid and hyaluronate thereof have a very good water holding effect, so that the hyaluronic acid and hyaluronate thereof have lasting moisturizing effect on oral cavity. Furthermore, the hyaluronic acid and hyaluronate thereof can promote wound healing and have the effects of healing anabrosis and the like. In addition, the hyaluronic acid and hyaluronate thereof are colorless and tasteless and free from toxicity, belong to synthetic substances in human body, and are easy to be compatible with ions such as sodium, potassium, calcium, zinc, ferrum and silver ions, so that the hyaluronic acid and hyaluronate thereof have the taste which is suitable for being accepted by human body.
Owner:北京泰克美高新技术有限公司
Filament based on hyaluronic acid in the form of free acid and method for obtaining it
InactiveUS20100310631A1Good biocompatibilityInduce inflammatory reactionAntibacterial agentsAntimycoticsAcetic acidAqueous solution
The present invention relates to a method for preparing by wet spinning a continuous filament based on hyaluronic acid in free acid form, notably soluble in water. The preparation method according to the invention comprises the following steps: a) preparing a spinnable aqueous solution of hyaluronic acid or of a hyaluronic acid salt, preferably a sodium hyaluronate solution; b) extruding said solution to an extrusion die; c) forming the filament by passing the extruded solution into a bath of acetic acid, concentrated to more than 80%, drawing and drying. The invention also relates to a filament based on hyaluronic acid in free acid form, said filament having swelling properties in water and physiological liquids and moreover being solubilizable in water under certain conditions.
Owner:UNIV CLAUDE BERNARD LYON 1 +1
Hyaluronate gel particle and preparation method thereof
The invention relates to a hyaluronate gel particle and a preparation method thereof. The preparation method of the hyaluronate gel particle comprises the following steps: crosslinking hyaluronate and a crosslinking agent, forming a gel after absorbing water to swell, equilibrizing and dialyzing by using a physiological equilibrium liquid, and finally screening to obtain the hyaluronate gel particle. The hyaluronate gel particle prepared by the method provided by the invention has better crosslinking effect, and the viscosity, particle size and stability of the hyaluronate gel particle are very suitable for beauty treatment.
Owner:深圳市资福药业有限公司
Glaucoma surgery
Owner:SYRHA TRADING SA
Two-component whitening long-acting Shuiguang injection for correcting skin wrinkles
InactiveCN108261341AMeet the needs of fair and supple skinAdd whitening ingredientsCosmetic preparationsToilet preparationsWrinkle skinAmino acid
The invention provides a two-component whitening long-acting Shuiguang injection for correcting skin wrinkles. The injection comprises two components, i.e. a component 1 and a component 2, wherein thecomponent 1 is a gel made of a crosslinked hyaluronate and a non-crosslinked hyaluronate, and the component 2 is a diluent containing amino acid and whitening active components. The injection provided by the invention can supplement adequate nutrients to the skin, also can supplement collagen to form needed amino acids or polypeptides, and is added with whitening components, thus catering to theneeds of most beauty seekers for fair, watery and tender skin.
Owner:SUZHOU NANOCRYSTAL PHARMA
Preparation of Chitin and Derivatives Thereof For Cosmetic and Therapeutic Use
ActiveUS20080118563A1Eliminate swellingFast rebuildPowder deliveryOrganic active ingredientsFiberChitin formation
The invention relates to novel chitin derivatives and their use in medical treatments of plastic surgery, dermocosmesis and therapy, in particular it relates to natural chitin derivatives, like chitin in nanofibrillar form, oxychitin and other chemical derivatives of chitin, chitosan-hyaluronate and associations for use as subcutaneous fillers or skin protectants.
Owner:MAVI SUD
Dilution resistant viscoelastic compositions
InactiveUS20060003964A1Resistance to dilutionResistance to viscosityBiocideOrganic active ingredientsMethyl celluloseAqueous solution
A method of performing viscosurgery and intra-articular therapy and a dilution resistant viscoelastic composition are disclosed. One embodiment of the dilution resistant composition comprises a hyaluronate-based viscoelastic agent and a low viscosity, polymer-containing solution. The hyaluronate-based viscoelastic can be an aqueous solution sodium hyaluronate having an average molecular weight greater than 750,000 Daltons and a concentration by weight between 0.5% and 10%. The polymer-containing solution can contain a polymer selected from the group consisting of chondroitin sulfate and methylcellulose. One embodiment can comprise a polymer-containing solution containing methylcellulose at a concentration by weight from about 0.05% to about 5.0% and chondroitin sulfate at a concentration by weight from about 0.1 to about 10%.
Owner:ALCON INC
Preparation method and application of anti-aging composition with various hyaluronates
InactiveCN110051587AFunction increaseRepair and soothe the skinCosmetic preparationsToilet preparationsSkin repairSodium hyaluronate
The invention discloses an anti-aging composition with various hyaluronates, which comprises, by weight, 1-10% of butylene glycol, 1-5% of hydrolyzed hyaluronic acid, 1-5% of sodium acetylated hyaluronate, 0.1-5% of sodium hyaluronate, 0.1-5% of a sodium hyaluronate crosslinked polymer, 0.1-5% of hydroxypropyl trimethyl ammonium chloride hyaluronic acid, 0.1-1% of oligopeptide-1, 0.01-1% of blackend swallowwort root extract, 0.1-0.5% of PEG-60 hydrogenated castor oil, 0.1-0.5% of p-hydroxyacetophenone, 0.1-1% of octanohydroxamic acid, and the balance of deionized water, adding up to 100%. Theanti-aging composition has extended functions, provides both moisturizing and skin repairing and soothing; since the anti-aging composition is water soluble, the anti-aging composition is not limitedto product forms and is addable to liquids, milks, creams, essences and the like.
Owner:广州市爱百伊生物技术有限公司
Method for producing cross-linked hyaluronic acid
InactiveUS20100261893A1Reduce needReduce concentrationSugar derivativesSugar derivatives preparationCross-linkHyaluronates
A method for producing cross-linked hyaluronic acid has cross-linking one or more polymers at a low temperature from 10 to 30° C. for a reaction time greater than 48 hours under basic condition with a cross-linking agent to form a cross-linked hyaluronic acid, wherein the polymer is selected from the group consisting of hyaluronic acid, hyaluronate, derivatives thereof and a mixture thereof. Whereby, a cross-linking agent content in a product of the method is decreased so the product does not require purification.
Owner:SCIVISION BIOTECH
Method of inducing or enhancing chondrogenesis with extracellular matrix containing BMP-4
InactiveUS6932977B2Induce and enhance chondrogenesisEnhancing chondrogenesisOrganic active ingredientsBiocideCell-Extracellular MatrixECM Protein
A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing BMP-4 or a combination of BMP-4 and GDF-5.
Owner:DEPUY SPINE INC (US)
Targeted glycosaminoglycan polymers by polymer grafting and methods of making and using same
InactiveUS7223571B2Narrow size distributionReduce immunoreactivityCell receptors/surface-antigens/surface-determinantsSurgical adhesivesPolymer scienceSugar
The present invention relates to methodology for polymer grafting by a polysaccharide synthase and, more particularly, polymer grafting using the hyaluronate or chondroitin or heparin / heparosan synthases from Pasteurella, in order to create a variety of glycosaminoglycan oligosaccharides having a natural or chimeric or hybrid sugar structure with a targeted size that are substantially monodisperse in size.
Owner:THE BOARD OF RGT UNIV OF OKLAHOMA
Mucomimetic compositions and uses therefore
The present invention relates to mucomimetic and ophthalmic solutions comprising a cationic multimeric antimicrobial agent such as polyaminopropyl biguanide and a magnesium, calcium or magnesium / calcium complex of an anionic polymer such as hyaluronate, alginate, carboxymethyl cellulose, chondroitin sulfate or mixtures thereof. In specific embodiments, the solutions include additional components such as a surfactant, preferably polysorbate 20, a viscosity-modifying agent, preferably hydroxypropylmethyl cellulose, carboxymethyl cellulose or hydroxyethyl cellulose, a tonicity agent and a buffer. The solutions are biocompatible with and are highly comfortable when administered to mucous membranes, including those of the eye, as well as are effective disinfectants.
Owner:SCHAEFER ROLF
Biomaterials for bone replacements
InactiveUS20010053938A1Excellent biocompatibleExcellent bioabsorbable characteristicImpression capsSurgical adhesivesNatural boneMedicine
The present invention involves compositions for use as granular bone replacements. The compositions of the present invention are comprised of hyaluronic acid esters or salts of hyaluronic acid in association with a pharmacologically active compound wherein the molecular weight of the hyaluronic acid is below 250,000 and either artificial or natural bone granules. The present invention further involves a method of promoting the growth or repair of damaged or defective bones in either humans or animals using the compositions of hyaluronic acid derivatives and bone granules.
Owner:FIDIA FARM SPA
Methods and kits for topical administration of hyaluronic acid
InactiveUS20070196312A1Minimizing fine lineMinimizing wrinkleCosmetic preparationsToilet preparationsSkin treatmentsDermatology
The present invention provides a method for treating the skin of a subject comprising (a) applying an HA liquid to an area of the skin, wherein the HA liquid comprises hyaluronic acid, hyaluronate, cosmetically acceptable salts of hyaluronic acid, intramolecular esters of hyaluronic acid and / or intermolecular esters of hyaluronic acid; (b) massaging a self-heating mask composition into the area of the skin for a duration sufficient to activate heat, wherein the self-heating mask composition comprises at least one silicoaluminate; (c) letting the self-heating mask composition set on the area of the skin to form a mask; (d) optionally massaging the mask into the area of the skin; (e) optionally removing the mask from the area of the skin; and thereafter (f) optionally applying another skin care product to the area of the skin. The present invention also provides a kit useful for skin treatment, wherein the kit comprises the HA liquid and the self-heating mask composition comprises at least one silicoaluminate.
Owner:GROSS DENNIS F
Preparation method of collagen-hyaluronic acid composite products
InactiveCN101601868ASolve the problem of difficult solution compoundingProsthesisBiological propertyFreeze-drying
The invention relates to a preparation method of collagen-hyaluronic acid composite products; in the method, electrochemical treatment is first carried out on hyaluronate to remove metal ions in the hyaluronate and obtain hyaluronic acid solution; then the obtained hyaluronic acid solution is mixed with collagen solution to obtain the mixed solution of the collagen and hyaluronic acid; the mixed solution can be applied directly or used for preparing collagen-hyaluronic acid composite products by the method of freeze drying.As the method of the invention does not affect the biological properties of natural biological materials, the final products still retain good biological activity.
Owner:SOUTH CHINA UNIV OF TECH
Coating carrier and its use in method for sperm maturity detection and non-invasive mature sperm separation
InactiveCN101487841ADeterminable maturity statusPromote maturityBioreactor/fermenter combinationsBiological substance pretreatmentsMale infertilityEmbryo
The invention discloses a coated carrier and the application thereof in the method for detecting maturity of sperms and separating mature sperms noninvasively; the coated carrier is a carrier coated by hyaluronic acid, or hyalurate or hyaluronic acid derivatives; the detecting method is as follows: preparing specimens; loading the specimens to the coated carrier and covering with microscopic glass; reacting for 5-60 minutes at room temperature; observing by a microscope and counting; and calculating the combination ratio of hyaluronic acid of active sperms. The separating method is as follows: preparing specimens; loading the specimens to the coated carrier, reacting for 5-120 minutes at the temperature of 18-37 DEG C; and collecting the combined sperms. The coated carrier has the advantages of precise and reliable results, simple and fast operation, low cost and good safety performance, and can be used for estimating sperms quality, sperms maturity and analysis of the causes of sterility disease of mails, and is applicable to assisting reproduction or reproduction research center to safely collect mature and active sperms, so that the goal of improving embryo quality greatly is achieved.
Owner:SHENZHEN PEOPLES HOSPITAL
Method for improving adhesion property of polyacrylamide hydrogel, and resulting polyacrylamide hydrogel
The invention provides a method for improving the adhesion property of a polyacrylamide hydrogel, and resulting polyacrylamide hydrogel. The method comprises the following steps: (1) uniformly mixingdopamine grafted and modified hyaluronic acid or hyaluronate and a soluble tetraborate in deionized water to form a first crosslinked network; and (2) adding acrylamide and a crosslinking agent, thenadding an initiator and tetramethylethylenediamine under ice bath conditions, performing uniform mixing, and then polymerizing the obtained mixture at 0-4 DEG C to obtain the polyacrylamide hydrogel,wherein in step (1), the dopamine graft rate of the above modified product is 30-32%, and a mass ratio of the modified product to the tetraborate is 5:(2-1); and a mass ratio of the acrylamide added in step (2) to the modified product in the step (1) is (18-20):1, and the hyaluronate is a potassium salt or a sodium salt. The method greatly improves the adhesion property of the prepared polyacrylamide hydrogel.
Owner:JIANGHAN UNIVERSITY
Preparation method of acetylated hyaluronate
The invention relates to a preparation method of acetylated hyaluronate, which comprises the following steps: (1) mixing hyaluronic acid or a hyaluronate with an acetic anhydride, and carrying out acylation reaction under the catalysis of a catalyst; (2) after the reaction is finished, diluting an obtained reaction solution with water, and carrying out solid-liquid separation to obtain a solid; and (3) pulping the solid obtained in the step (2) to obtain an acetylated hyaluronic acid solution, and purifying to obtain the acetylated hyaluronate. According to the method provided by the invention, the preparation of the hyaluronate can be realized by only using acetic anhydride without using acetic acid in the raw materials, and meanwhile, the production cost is remarkably reduced due to thefact that acetic acid is not used, and furthermore, the preparation process is greener and more environment-friendly.
Owner:JIANGSU CHENGXIN PHARMA
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