35results about How to "To stop bleeding" patented technology

An antibacterial medical dressing for the operation wound is prepared from chitosan fibers through alkalizing to become alkaline chitosan fibers, and etherifying reaction on chloroacetic acid to become carboxymethyl chitosan fibers. When said fibers are encountered with water, it is swelling to become elastic gel. It is possible to add additive for higher curative effect.

The present invention discloses a self-adhesive type chitosan hemostatic film, which is composed of components by weight percentage: 85-93% chitosan, 5-10% glycerin, 2-5% citric acid. The preparing steps includes: weighing chitosan, glycerin and citric acid, then adding chitosan into acetum with 1.5%-2% mass concentration, mixing to chitosan dissolved, adding glycerin and citric acid again, mixing to mixed solution; pouring said solution into glass mould and self-levelling, drying to form film, and cooling to room temperature; supporting the mould with film in closed container filling with absolute ethyl alcohol, and suffocating 2-3 hours, exposing film from mould. The film has no bacterium, and the self-adhesive surface absorbs moisture and forms gel instantly when contacts with blood or body fluid after is planted into body, the gel has adhesive and has effects of hemostasia and healing. Other side of the film has no adhesive and acts on isolation function with periphery.

Disclosed is a frequency conversion high frequency electrotome. The input port (1) is connected with the input end of an electrode plate detecting and alarming circuit (2). An output signal display module (4), a high frequency generator (6) and a frequency conversion adjusting module (7) are respectively connected with an automatic test markup language (ATML) processor (5), and the output end of the frequency conversion adjusting module (7) is connected with a pre-amplifier (8). The pre-amplifier (8) is connected with the input end of a first power amplifier (10), the output end of the first power amplifier (10) is connected with the input end of a second power amplifier (11), and the output end of the second power amplifier (11) is connected with an output interface (13). After the frequency demultiplication of the frequency conversion high frequency electrotome is carried out through a crystal oscillator, the fundamental frequency and the repetition frequency are obtained, and operating modes of pure cutting, mix cutting, monopole solidification, spraying solidification and double pole solidification are achieved. In a surgical operation, the cutting speed is fast, harm to a tissue is little, and separation and solidification of the tissue of a human body can be achieved, so that the aims of cutting and bleeding stop are achieved, and the utilization effect is good.

The invention belongs to the technical field of medicine and hygiene, and in particular relates to a temperature-sensitive medical chitosan derivative preparation and a preparation method of the temperature-sensitive medical chitosan derivative preparation. The main ingredient, namely, chitosan derivative in the preparation is hydroxybutyl chitosan. The product has the temperature sensitivity, and has good effects of bleeding stopping, adhesion preventing, drug sustained release, and prevention and treatment for osteoarthritis. The preparation method of the temperature-sensitive medical chitosan derivative preparation has the advantages that large-scale production can be realized, high-pressure steam sterilization or filtration sterilization can be realized, and viruses, immunogenicity and the like can be removed.

The invention provides medical water-based adhesive. The medical water-based adhesive provided by the invention is applied to adhesion of skin and tissues of surgical wound surfaces or other wounds byutilizing the characteristic that andrias davidianus blanchard mucus is made into freeze-dried powder and can generate strong adhesion performance after being mixed with various bioactive solvents. The medical water-based adhesive provided by the invention has good effects of being good in biological safety, capable of being degraded in vivo, and capable of promoting regeneration, also has antibacterial and hemostatic effects, is suitable for being used as a tissue adhesive or dressing for surgical wound surfaces or tissue injury parts, and is an ideal material for meeting the requirements for tissue wound repair and healing.

The present invention discloses a method for making the antibiotic medical dressing, which includes adopting chitosan fiber to generate alkali chitosan fiber by alkalization then doing etherificationreaction with the chloroactic acid, the carboxymethyl chitosan fiber is prepared, and the dressing is prepared after opening packing, fleece formation and needling. Or the chitosan fiber is made intochitosan nonwoven cloth by the processing of the nonwoven cloth, then the dressing is done with carboxymethylation reaction, and the carboxymethyl chitosan antibiotic medical dressing is obtained after cutting, packing and sterilizing. The invention also discloses the usage of the antibiotic medical dressing prepared with the method. The invention is suitable for the surgery wound, burn, scald andother chronic wounds, covering the would surface to prevent the moisture loss in the body fluid, providing an active humid surrounding for the would healing, keeping no dropsy and no erosion at the would surface, isolating the bacterial infection, and obtaining the effects of anti-inflammation, hemostasis, ease pain and facilitating the tissue assimilation.

The invention relates to a preparation method of a soluble paper-shaped alginate compound bleeding-stopping membrane. The bleeding-stopping membrane contains the following materials in percentage by mass: 40%-79.9% of alginate, 20%-60% of polyvinyl alcohol and 0-0.1% of a calcium salt crosslinking agent. The preparation method comprises the following steps: (1) dissolving alginate and polyvinyl alcohol into water in proportion, so as to form a uniform and transparent solution with a concentration of 7%-15%, adding the calcium salt crosslinking agent, carrying out crosslinking, so as to obtain a spinning solution; and (2) putting the spinning solution into a constant-temperature liquid storage device, carrying out processing and once formation by virtue of electrostatic spinning equipment, so as to obtain the soluble paper-shaped alginate compound bleeding-stopping membrane. The soluble paper-shaped alginate compound bleeding-stopping membrane has a porous net-shaped structure and a relatively high surface area and can mutually act with blood of a wound to form gel, so that the hemostasis process is accelerated; and meanwhile, calcium ions in the bleeding-stopping membrane material are released to the surface of the wound so as to start blood coagulation factors, so that the two bleeding-stopping effects of gel hemostasis and calcium ion blood coagulation are achieved.

A chitosan-iodine composite biological medical film and a preparation method thereof are disclosed. The chitosan-iodine composite biological medical film is formed by compounding a chitosan-iodine polyvinyl-alcohol layer, a polyvinyl alcohol layer, a chitosan polyvinyl-alcohol foam layer and a hydrophilic polyglutamic acid net-shaped gel layer , and the chitosan polyvinyl-alcohol foam layer is compounded between the polyvinyl alcohol layer and the hydrophilic polyglutamic acid net-shaped gel layer . The four layers have different effects: the chitosan-iodine polyvinyl-alcohol layer has the effects of killing bacteria, moisturizing and promoting healing; the polyvinyl alcohol layer has the effects of moisturizing and promoting healing; the chitosan polyvinyl-alcohol foam layer has the effects of dewatering, absorbing seepage and moisturizing; and the hydrophilic polyglutamic acid net-shaped gel layer has the effects of stopping bleeding, adsorbing the wound and converting the adsorbed seepage to the chitosan polyvinyl-alcohol foam layer. According to the chitosan-iodine composite biological medical film, the chitosan-iodine polyvinyl-alcohol layer and the polyvinyl alcohol layer are heated in a microwave mode, so that a polar medium can be rapidly heated, the reaction temperature is rapidly reached, and the reaction time is shortened; and the chitosan polyvinyl-alcohol foam layer is dried by a vacuum freeze-drying method.

The invention relates to the technical field of medical instruments, and discloses a cervical dilatation balloon catheter. According to the cervical dilatation balloon catheter, tablets are placed in a medicine storage cavity by rotating a head end, the head end is tightened, lubricating physiological liquid medicine is injected into a sealing injection ring, the lubricating physiological liquid medicine dissolves the tablets into particles and flows out of the medicine outlet holes, so that the inner wall of the vagina of a puerpera is lubricated, meanwhile, the aims of stopping bleeding and suppressing pain are achieved, and comfort is improved; According to the cervical dilatation balloon catheter, a first balloon and a second balloon are filled with normal saline and placed on the inner opening of the cervix uteri, mild mechanical expansion force is generated on the lower uterine segment and the cervix uteri, disappearance of the lower uterine segment and dilatation of the uterine opening are promoted, meanwhile, secretion of endogenous prostaglandin is stimulated through separation and stripping of a fetal membrane, so that the cervix uteri of the puerpera is gradually expanded unconsciously, and accordingly nerves reflect, so that nerve tracts of posterior pituitary release oxytocin, the oxytocin level in maternal blood circulation is increased, uterus contraction is promoted to be continuously enhanced, then labor induction is successful, and the operation efficiency is improved.

The invention discloses a negative-pressure-drainage wound treating device. The negative-pressure-drainage wound treating device comprises a negative-pressure sponge, a sealing unit, a suction disc, adrainage tube, a washing tube and a plurality of drainage channels and is characterized in that the negative-pressure sponge is arranged above a wound, the sealing unit is arranged on the upper surface of the negative-pressure sponge and the suction disc, the suction disc comprises a bottom disc and an obtuse-angle connector connected with the drainage tube, the bottom of the bottom disc is provided with a through hole, the interior of the connector is communicated with the through hole, the connector penetrates the circular hole of the sealing unit, the washing tube is communicated with thelateral wall of the drainage tube, the drainage channels are fixedly peripherally arranged along the bottom of the bottom disc and communicated with the through hole, and each drainage channel is provided with a plurality of drainage holes; the negative-pressure sponge sequentially comprises a hemostasis layer, an adhesion-preventing layer, a support layer, a hemostasis layer and an adhesion-preventing layer from top to bottom. By negative-pressure-drainage wound treating device, effective hemostasis and antibacterial effects can be achieved.

The invention discloses duck feed rich in spirulina. The duck feed comprises spirulina, corn starch, cottonseed meal, shrimp shell meal, duckweed, water bamboo shell, citrus pulp, carrot pomace and feed additives; the feed additives are paeony glycoside and shikonin; the proportion of individual ingredients is adjusted according to the nutrient demands of ducks at different stages. The duck feed is rich in various nutrients and dietary fibers, is capable of enhancing the immunity of the ducks, and achieves the functions of hemostasis and resistance to inflammation, bacteria, viruses, cancer and radiation. Compared with ducks fed with commercially available feed, ducks fed with the duck feed disclosed by the invention have the following advantages: the lean meat percentage is increased by 10-15 percent; the feed conversion rate is increased by 38-50 percent; nitrogen excretion is reduced by 12-16 percent; the amount of minerals and microelements excreted is reduced by 31-40 percent; the survival rate is increased by 6-10 percent; the feeding cost is reduced by 15-18 percent; the content of each of heavy metals, such as mercury, arsenic, palladium, chromium and cadmium, in duck meat is equal to or less than 0.001 mg/kg, and less than the requirement of pollution-free meat product standards set out by the Ministry of Agriculture of PRC.

The invention provides a method for preparing an open-cell ZIF-8/polymer composite foam material by using a solid-phase shearing and milling technology. The method comprises the following steps: mixing 40-60 parts of piezoelectric polymer granules and 60-40 parts of water-soluble salt granules in total 100 parts, adding the mixture into a millstone type mechanochemical reactor for milling and crushing, then preparing a block body by using a forming process, adding a water-soluble salt into a block, soaking the block into deionized water until the water-soluble salt is completely dissolved, soaking the obtained piezoelectric polymer foam into a ZIF-8 diluted solution, and standing and freeze-drying to obtain the ZIF-8/polymer composite foam material. The ZIF-8/polymer composite foam material obtained by the method has better mechanical property and flexibility, and when the ZIF-8/polymer composite foam material is used as a foam bone material, the piezoelectric effect can be exerted under the stress effect while an osteogenesis space is maintained in an oral stress environment, and continuous micro-current stimulation promotes osteogenesis in an operation area.

The invention provides radiofrequency ablation equipment which comprises a direct current boost module, a conversion module, an alternating current boost module, a detection module and a control module. The direct current boost module boosts first direct current voltage input by the outside to form second direct current voltage. The conversion module is electrically connected with the direct current boost module, receives the second direct current voltage output by the direct current boost module and converts the second direct current voltage into alternating current voltage with target frequency. The alternating current boost module is electrically connected with the conversion module and boosts the alternating current voltage output by the conversion module. The detection module is electrically connected with the alternating current boost module and detects the output voltage and the output current of the alternating current boost module. The control module is electrically connected with both the detection module and the direct current boost module, receives the output voltage and the output current, detected by the detection module, of the alternating current boost module to obtain output power and controls the direct current boost module to boost or lower the second direct current voltage according to the obtained output power.

The invention belongs to the technical field of medicines, and particularly relates to ruby regeneration ointment and a preparation process thereof. The ruby regeneration ointment is prepared from thefollowing raw materials in parts by weight: 50 to 150 parts of calamine, 30 to 120 parts of amber, 30 to 120 parts of rheum officinale, 30 to 120 parts of dragon's blood, 30 to 120 parts of radix angelicae, 100 to 300 parts of calcined gypsum, 30 to 90 parts of natural borneol, 20 to 80 parts of cuttlebone, 30 to 120 parts of fructus gardenia, 1900 to 2100 parts of vaseline, 25 to 35 parts of teaoil and 100 to 350 parts of lanolin. The ointment is prepared from the following components in parts by weight: 1900 to 2100 parts of vaseline, 25 to 35 parts of tea oil and 100 to 350 parts of woolfat. The process comprises the following steps: respectively vibrating, grinding and breaking walls of the raw materials into ultrafine powder, and performing sieving with a 200-mesh sieve for later use; and weighing, mixing, heating and cooling the vaseline and the tea oil to 60-70 DEG C, adding and stirring the calamine, the amber, the rheum officinale, the radix angelicae, the calcined gypsum and the fructus gardenia, adding and stirring the cuttlebone, the dragon's blood and the natural borneol, and cooling the mixture to the normal temperature to obtain the ointment. The ointment containsanti-inflammatory, detumescent, analgesia, necrotic tissue-removing, granulation-promotion and hemostatic drugs, is remarkable in clinical effect by applying a wet healing method, and is suitable fortreating bedsores, open wounds, wounds of old people, diabetic feet, non-healing burns and scalds and the like.

The invention belongs to the technical field of medicine and hygiene and particularly relates to medical hydroxybutyl chitosan sponge and a preparation method thereof. The sponge is prepared from hydroxybutyl chitosan, sodium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate and a plastic agent which is one or more of glycerin and polyethylene glycol. A cross-linking agent is not needed, and the sponge has a thermal-sensitive characteristic after absorbing tissue fluid or blood, can be converted to a gel state when reaching the normal temperature of a human body, is firmly bonded with tissue, has effects of stopping bleeding, preventing adhesion and promoting tissue repair, can be combined with a sterilizing agent, growth factors and other drugs for use, and can also be applied to the fields of tissue engineering and artificial organs.

The present invention discloses a preparation method of bone bone analgesic composition and its medicament, aiming to provide a bone bone analgesic composition and its medicament with good therapeutic effect and little side effects. The invention also provides a preparation method of the medicament; The technical points are as follows: the bone-relief pain-relieving composition includes the following raw materials by weight: 15-20 parts of earthworm, 5-10 parts of elephant skin, 15-20 parts of natural copper, 12-15 parts of myrrh, Blood scorpion 5‑12 parts; belongs to the technical field of traditional Chinese medicine.

The invention provides a chitosan-iodine composite biomedical membrane. The chitosan-iodine composite biomedical membrane is formed by compounding a chitosan-iodine polyvinyl alcohol layer, a polyvinyl alcohol layer, a chitosan polyvinyl alcohol foam layer and a hydrophilic reticular polyglutamic acid gel layer; the chitosan polyvinyl alcohol foam layer is compounded between the polyvinyl alcohol layer and the hydrophilic reticular polyglutamic acid gel layer. The four layers take different effects, wherein the chitosan-iodine polyvinyl alcohol layer has the effects of resisting bacteria, moisturizing and promoting healing, the polyvinyl alcohol layer has the effects of moisturizing and promoting healing, the chitosan polyvinyl alcohol foam layer has the effects of dewatering, absorbing seepage and moisturizing, and the hydrophilic reticular polyglutamic acid gel layer has the effects of stopping bleeding, adsorbing wounds and absorbing seepage and transferring the seepage to the chitosan polyvinyl alcohol foam layer. The chitosan-iodine composite biomedical membrane is characterized in that the chitosan-iodine polyvinyl alcohol layer and the polyvinyl alcohol layer are heated by microwave so that a polar medium can be heated quickly to reach a reaction temperature rapidly and the reaction time can be shortened, and the chitosan polyvinyl alcohol foam layer is dewatered by use of a vacuum freeze-drying method.