107results about How to "Fast healing" patented technology

The invention relates to self-healing polyurethane resin containing disulfide bond and a preparation method thereof. The polyurethane resin comprises, by weight parts, 10-30 parts of polyether or polyester polyol, 3-20 parts of polyisocyanates, 1-10 parts of chain extender containing the disulfide bond, 0.001-1 part of organic tin or tertiary amine catalyst and 50-80 parts of organic solvent. The method for preparing the self-healing polyurethane resin containing the disulfide bond comprises the steps of weighing raw materials, stirring, heating and performing dehydration for the polyether or polyester polyol under vacuum conditions, lowering the temperature to 85 DEG C or below, adding the polyisocyanates and the organic tin or tertiary amine catalyst, reacting, lowering the temperature to 50 DEG C or below, adding the organic solvent and the chain extender containing the disulfide bond, reacting and performing vacuum defoamation to obtain the self-healing polyurethane resin. The self-healing polyurethane resin heals by itself under the heating or ultraviolet (UV) light conditions, the required conditions are mild, the healing speed is high, the effect is good, the preparation method is simple and easy to control, and raw materials are goods of commercialized production and are cheap and easy to obtain.

The invention provides marine biomaterial composite hydrogel dressing and a preparation method thereof and relates to the technical field of medical dressing. The hydrogel dressing is prepared from asodium alginate-fish collagen mixed solution and a chitosan-crosslinking agent mixed solution, wherein the sodium alginate-fish collagen mixed solution is prepared from sodium alginate, fish collagen,polyvinyl alcohol, sodium carboxymethyl cellulose, pectin, glycerin, propanediol and distilled water; the chitosan-crosslinking agent mixed solution is prepared from chitosan, a crosslinking agent, glacial acetic acid and distilled water. The invention also provides the preparation method of the dressing. The sodium alginate-fish collagen mixed solution is cultured at the constant temperature, the chitosan-crosslinking agent mixed solution is added, the mixture reacts, and the hydrogel dressing is obtained. The hydrogel dressing has excellent mechanical property, moisture retention and biocompatibility, accelerates wound repairing, can diminish inflammation and perform sterilization, has no wound inflammation reaction, effectively promotes wound healing, is easy to remove and does not stick to a wound surface.

The invention discloses a chitosan-nano laponite composite gel wound dressing and a preparation method thereof. The chitosan-nano laponite composite gel wound dressing is prepared from the following raw materials in parts by weight: 1 to 16 parts of chitosan, 0.6 to 20 parts of nano laponite, 0.1 to 0.5 part of sodium pyrophosphate, 1.2 to 3.5 parts of plasticizer, 8.5 to 20 parts of moisturizing agent, and 67 to 85 parts of water. The gel wound dressing is simple in preparation process and low in production cost; and by combining the chitosan and nontoxic nano laponite, the product has good biological compatibility, antibacteria and hemostasia performance and moisturizing performance, can effectively prevent the fat liquefaction of a wound, can promote the rapid healing of the wound, and has remarkable nursing effect for the wound that is difficult to heal or the scald wound.

The invention discloses application of histatin 1 (Hst1) polypeptide in preparation of composite materials for promoting repair of large-area skin defects. The Hst1 polypeptide is found to have the characteristics of promoting cell adhesion and vascularization and inhibiting inflammatory response. The Hst1 polypeptide can be loaded on a variety of biological materials, and can be prepared into dressing, injection, ointment, powder, hydrogel, membranes, sponges, fiber scaffold materials and the like, which can effectively promote the healing of the large-area skin defects, by being compounded with bioactive composite materials, wherein large-area skin defects include traumas, burns, skin ulcer caused by tumor resection or diabetes, and the like. The Hst1 polypeptide provided by the invention is human-derived polypeptide, and has good biocompatibility and biosafety. When being used for the preparation of the composite materials for promoting the repair of the large-area skin defects, theHst1 polypeptide has an important medical value and a good industrialization prospect.

A Chinese medicine in the form of ointment for treating burn and scald without pain and scar is prepared from 17 Chinese-medicinal materials including rhubarb, phelodendron bark, tangerine peel, liquorice root, etc. Its preparing process is also disclosed.

The invention belongs to the field of crop cultivation, and relates to a method for increasing a healing rate of clonal tea shoots for cutting. The method is characterized in that influence of the quality of nutrient solution at water culture stages for the tea shoots, pH (potential of hydrogen) values, proportions of nutrient components, hormones, sunshade rates, environmental temperatures, water culture periods, shoot pruning modes for the tea shoots and the ages, the thicknesses and the lengths of the tea shoots on formation of water culture calluses of the tea shoots is compared, and suitable water culture conditions for the tea shoots are screened; tea shoots with green stems or pink stems are selected, the length of each shoot ranges from 2.0cm to 2.5cm, and lower-end pruned wound of each fully grown auxiliary bud with one leaf can be flat or oblique; the tea shoots are soaked in 2%o carbendazim for 5 to 10 minutes, then are soaked in 125ppm of 2, 4-D for 12 hours and are subjected to water culture in nutrient solution (tap water is inappropriate) in a period from May to July (optimally a period from May to the beginning or the middle of June), the nutrient solution is prepared from sterile water, 0.005% of urea and 0.005% of KH<2>PO<4> are added into the sterile water, and the pH of the nutrient solution ranges from 6.0 to 7.0; the temperatures of greenhouses range from 25 DEG C to 30 DEG C under the control, and the tea shoots are cultured for 25 to 30 days.

The invention discloses a medicine composition for promoting wound healing after operation and a preparation method thereof. The medicine composition is prepared from the following raw materials in parts by weight: 22-28 parts of natural indigo, 12-21 parts of radix notoginseng, 10-14 parts of Mongolian dandelion herb, 5-7 parts of Grosvenor momordica, 3-5 parts of liquorice root, 0.00005 part of recombinant human epidermal growth factor, 0.001 part of mannitol and 0.0005 part of human albumin. The medicine composition has obvious effects when being used clinically.

The invention discloses liquid-swellable alginate chitosan composite fiber, a preparation method and an application thereof. The composite fiber is prepared by a method in which an aqueous solution ofalginate is solidified in a coagulation bath, the mass concentration of the aqueous alginate solution is 3 to 6%; and the coagulation bath comprises the following components in parts by weight: 1 to6 parts of oligochitosan, 0.1 to 1 part of a sarcandra glabra extract, 0 to 1 part of a peppermint extract, 0 to 1 part of hyaluronic acid, 0 to 1 part of borneol, 90 to 100 parts of a calcium chloride solution or a calcium ion sustained release system, and 0.1% to 2.0% a calcium chloride solution or a calcium ion sustained release system. The invention also provides a preparation method of the composite fiber. The active ingredient of the oligochitosan and the like in the invention has uniform distribution in the composite fiber, the composite fiber has a high liquid absorption ratio, and theactive ingredients are fully absorbed for wound repair, the composite fiber can provide different nursing environment for different periods of wound healing, has good sterilization and anti-inflammatory effect, and quick wound healing effect.

The invention provides a fluid haemostatic adhesive and a preparation method thereof. The fluid haemostatic adhesive comprises cross-linked chitosan or a derivative thereof, cross-linked water-solubleprotein or polypeptide, and a lubricating agent. The haemostatic adhesive does not contain blood coagulation factors, is in a flowable ointment shape, has a proper swelling degree, can be directly used without involving any time-consuming reconstruction step, and has the advantages of short haemostatic time, high wound healing speed, convenience and rapidness in use, in-vivo degradability, good biocompatibility and the like.

The invention provides a cultivating method for northern cold-resistant citruses. The method specifically comprises the following steps: (1) selecting a northern cold-resistant citrus plant which is three years old or more as a stock, and selecting an annual branch of a southern citrus tree which has born fruits in former years as a scion; (2) grafting the scion into a formation layer of the stock, carrying out outdoor grafting in March in the same year, and covering the scion and a grafted opening by virtue of airtight and waterproof bags after grafting by adopting a grafting method; (3) after the scion grows shoots, reserving a healthy branch with flourishing leaves as a permanent branch, and cultivating and acclimatizing year by year; (4) protecting upper branches in the first winter, keeping out the wind at an upper air inlet in the second winter, and not adopting protective measures in the third winter, thus the northern cold-resistant citruses are cultivated.

The invention provides a polygonatum polysaccharide dressing and a preparation method of a finished product thereof. Every 100 g of the polygonatum polysaccharide dressing comprises 5-10 g of polygonatum polysaccharides, 1-4 g of antibacterial peptide, 6-15 g of polyethylene glycol 400 and the balance of purified water. The preparation method of the polygonatum polysaccharide dressing comprises steps as follows: firstly, sequentially adding the polygonatum polysaccharides, the polyethylene glycol 400 and the purified water to a reaction container, heating the mixture for dissolution, stirring the mixture for cooling, then dissolving the antibacterial peptide in the purified water, adding an obtained solution to the reaction container in the last step, and performing heating, even stirring, cooling, filtering and defoaming to obtain the polygonatum polysaccharide dressing; finally, directly canning the polygonatum polysaccharide dressing to prepare polygonatum polysaccharide gel, or evenly spraying the polygonatum polysaccharide dressing on surface layers of sanitary napkins, and performing vacuum freeze-drying to prepare gynecological protection pads. The provided polygonatum polysaccharide dressing can keep wound surfaces wet, cannot cause secondary damage to wounds during dressing replacement and can effectively prevent bacterium invasion and wound infection, the preparation technology is simple, and a few of raw materials are needed.

The invention relates to an external traditional Chinese medicinal healthcare preparation with effects of beautifying features, relieving pain and relieving itching and a preparation method thereof. The effective ingredient of the traditional Chinese medicinal preparation is prepared from the following raw materials in parts by weight: 5-10 parts of pseudo-ginseng, 10-20 parts of costus roots, 10-20 parts of sappanwood, 10-20 parts of radix angelicae lateralis preparata, 10-20 parts of myrrh, 10-20 parts of coptis chinensis, 10-20 parts of cortex phellodendri, 10-20 parts of flos carthami, 20-30 parts of pittosporum roots, 20-30 parts of rheum officinale, 20-30 parts of mint, 5-10 parts of borneol, 10-20 parts of lithospermum purpurocaeruleum, 20-30 parts of salviae miltiorrhizae, 10-20 parts of philippine flemingia roots, 8-12 parts of rhizoma corydalis, 10-20 parts of menthol, 20-30 parts of shinyleaf pricklyash roots and 10-20 parts of honeysuckles. The external traditional Chinese medicinal healthcare preparation can play a role in quickly beautifying the features when externally used, has the effects of relieving pain and relieving itching vigorously, and has an obvious curative effect of quickly relieving pain on trauma symptoms of a traumatic injury, a knife wound, a burn and a scald.

The invention provides an acne-removal skin-care lotion and a preparation method thereof. A skin-care product composition is prepared from 0.5-1.8% of nicotinamide, 2-12% of propylene glycol, 0.01-0.2% of licorice root extract, 0.001-0.005% of polyquaternium-73, 2-5% of fitosterole, 0.1-0.8% of hydroxyethyl cellulose, 0.1-1.5% of allantoin, 0.08-0.11% of preservative and the balance water. The skin-care lotion is rich in natural herbal plant ingredient, and an acne-removal natural extract composition with oil control and acne removal effects and acne-removal cream prepared from the composition are provided. In addition, the invention further provides the preparation method of the acne-removal skin-care lotion, and the process is simple.

The invention discloses a traditional Chinese herbal medicine ointment which is rapid in treating wounds of burns and scalds, does not need processes of removing scabs and grafting skin, does not cause scars after the wounds are treated, and is rapid to relieve pain and remove swelling. The traditional Chinese herbal medicine ointment is simple to use, only needs to be replaced once a day, can be easily rubbed, and is simple to manufacture and relatively low in treatment cost for patients. The traditional Chinese herbal medicine ointment for treating burns and scalds is prepared from the following medicinal raw materials: angelica sinensis, rheum officinale, garden burnet, liquorice, dried tangerine or orange peel, golden cypress, magnolia obavata, scutellaria baicalensis, frankincense, myrrh, polygonum cuspidatum, borneol, herba artemisiae anomalae, caulis spatholobi, plant oil and beeswax.

The invention discloses an externally-applied acne treatment medicament and a preparation method thereof. The externally-applied acne treatment medicament is characterized by being prepared from the following raw materials in parts by weight: 1000-1200 parts of dry peach flower, 10-14 parts of snake slough, 600-800 parts of dry walnut green seedcase, 1700-2300 parts of yellow wine, 15-20 parts of white part of chicken droppings, 1200-1500 parts of dry toad skin, 18-20 parts of sorpio, 25-30 parts of dry leech, and 1700-2300 parts of sorghum white spirit. The preparation method comprises the following steps: grinding the dry peach flower, the snake slough and the dry walnut green seedcase into powder, putting the powders into a ceramic vessel, pouring the yellow wine into the vessel for soaking, and sealing the ceramic vessel; grinding the white part of chicken droppings, the dry toad skin, the sorpio and the dry leech into powder, putting the powder into another ceramic vessel, pouring the sorghum white spirit into the vessel for soaking, and sealing the ceramic vessel; respectively putting the two vessels at the deep of well water, 60 days later, taking the two vessels out simultaneously, mixing the liquors, keeping in a cool place for 20 days so as to obtain the externally-applied acne treatment medicament. The medicament can be used for eliminating acne fester and lowering inflammatory reaction resulting from skin damage due to acne in short time, and has good curative effect to acne.

The invention belongs to the technical field of medical products, relates to a material for stopping bleeding and in particular relates to bionic cloth for stopping bleeding. The bionic cloth for stopping bleeding has a multilayered structure and comprises a repairing dissolving layer, an isolation and ventilation layer, a bleeding stopping medicine layer and a covering outer layer in sequence, wherein the repairing dissolving layer is cyanoacrylate tissue glue; the isolation and ventilation layer is formed by weaving cotton and hemp fibers; the bleeding stopping medicine layer is a medical treatment medicament; the covering outer layer is cotton and hemp fiber cloth; the repairing dissolving layer, the isolation and ventilation layer, the bleeding stopping medicine layer and the coveringouter layer are stuck and cured together through crosslinking; the bleeding stopping medicine layer is prepared from the following components in percentage by mass: 22 to 24 percent of mannitol, 0.5 to 12.6 percent of chitosan, 9 to 22 percent of vitamin C, 5.2 to 6.5 percent of dexamethasone, 2.0 to 2.2 percent of thrombin, 2.0 to 3.2 percent of polyvinyl alcohol, 0.2 to 0.5 percent of sodium dodecyl sulfonate, 0.5 to 7.2 percent of modified zeolite and the balance of starch micro-pore polysaccharide granules. After the product absorbs a lot of blood, the volume is expanded so that blood vessel ruptures or wounds are sealed and a barrier is provided for a bleeding stopping opening; the bionic cloth has a more rapid healing speed and a better effect.

The invention discloses an external medicament for treating psoriasis, which is characterized by comprising the following raw materials in parts by weight: 34 to 38 parts of fresh fugutoxin, 14 to 18 parts of dry toad skin, 1,000 to 1,500 parts of walnut green husk, and 2,000 to 3,000 parts of pine needle. The preparation method of the external medicament comprises the following steps: mixing toxic liver in globefish and the dry toad skin, and putting into a sealed vessel; mixing the walnut green husk and pine needle decoction, and putting into a sealed vessel; placing the two vessels in sea water 20 meters from the sea level for 19 days; and mixing mixtures in the two vessels after 19 days, and storing for 24 hours. The external medicament has the effect of eliminating venom of psoriasis, the itching feel can be relieved in a short time, and massive psoriasis toxins can be eliminated, so that the external medicament has good cure effect to the psoriasis.

The invention discloses a Chinese medicinal composition for treating bone fracture, and belongs to the technical field of Chinese medicines. The Chinese medicinal composition is prepared from the following raw materials in part by weight: 3 to 8 parts of native copper, 6 to 9 parts of fortune's drynaria rhizome, 3 to 8 parts of achyranthes bidentata, 2 to 7 parts of notoginseng root, 1 to 5 parts of dragon's blood, 3 to 9 parts of red-rooted salvia, 4 to 8 parts of ground beeltle, 5 to 9 parts of sandalwood, 1 to 6 parts of rosewood heart wood and 1 to 4 parts of Chinese eaglewood. The Chinese medicinal composition is prepared by processing the compatible natural Chinese herbal medicines, and has the advantages of addressing both the symptoms and root causes, radically curing the bone fracture, along with quick response, low cost, no toxic or side effects and obvious curative effects.