160results about How to "Avoid reinfection" patented technology

A disinfestation treatment chamber for treating fruit, flower and vegetable commodities subject to infestation by quarantine pests. The commodities are disinfested so as to meet quarantine restrictions without adversely affecting the quality of the commodity. The commodity is heated inside of the chamber in hot air having a relative humidity of 30-85% until the temperature of the commodity exceeds the thermal death point temperature of the target pest but is not so high as to adversely affect the quality of the commodity. The temperature of the commodity is held at this temperature until the pest is killed. The commodity is loaded into the treatment chamber in bins onto a low friction conveyor track system which transports the bins from one end of the chamber to the other. The commodities are treated while they are inside of the treatment chamber. After treatment of the commodities, the bins are unloaded using the low friction conveyor track system out of the opposite end of the treatment chamber. The chamber includes a fan / heat exchanger located inside the treatment chamber and positioned under the commodity bins. The space directly above the fan / heat exchanger is left unobstructed during treatment to enhance the airflow through the commodity bins.

A disinfestation treatment chamber for treating fruit, flower and vegetable commodities subject to infestation by quarantine pests. The commodities are disinfested so as to meet quarantine restrictions without adversely affecting the quality of the commodity. The commodity is heated inside of the chamber in hot air having a relative humidity of 30-85% until the temperature of the commodity exceeds the thermal death point temperature of the target pest but is not so high as to adversely affect the quality of the commodity. The temperature of the commodity is held at this temperature until the pest is killed. The commodity is loaded into the treatment chamber in bins onto a low friction conveyor track system which transports the bins from one end of the chamber to the other. The commodities are treated while they are inside of the treatment chamber. After treatment of the commodities, the bins are unloaded using the low friction conveyor track system out of the opposite end of the treatment chamber. The chamber includes a fan / heat exchanger located inside the treatment chamber and positioned under the commodity bins. The space directly above the fan / heat exchanger is left unobstructed during treatment to enhance the airflow through the commodity bins.

The invention relates to an analysis method and a system of metagenome data. According to the invention, a preliminary species identification result of a sample is obtained on the basis of a k-Mer algorithm, a part or all of supporting sequences are extracted on the basis of the preliminary species identification result, and the preliminary species identification result is verified by using a blast algorithm to judge whether the preliminary species identification result is a reported detected species or not. The method and system disclosed by the invention can lower false positivity, quickly and accurately obtain the reported detected species of the sample in a short time, and are compatible with various mainstream sequencing platforms, thereby being suitable for second-generation sequencing technologies and third sequencing technologies; the method and system of the invention can also accurately identify drug-resistant genes and drug-resistant mutation sites of the sample and map thedrug-resistant genes and the drug-resistant mutation sites of the sample to the reported detected species. Furthermore, the system disclosed by the invention can be used for identifying pathogenic microorganisms, especially endocarditis pathogens to overcome the defect that the endocarditis pathogens are difficultly cultured.

The invention relates to the field of influenza virus and the vaccination against flu. The invention provides a conditionally defective influenza virus particle having seven different influenza nucleic acid segments. The invention also provides a conditionally defective influenza virus particle lacking an influenza nucleic acid segment selected from the group of segments essentially encoding acidic polymerase (PA), the basic polymerase 1 (PB1) and the basic polymerase 2 (PB2). In particular, the invention provides defective influenza virus particles having seven different influenza nucleic acid segments and lacking an influenza nucleic acid segment essentially encoding acidic polymerase. Furthermore, the invention provides use of a composition comprising a defective influenza virus particle according to the invention for the production of a pharmaceutical composition directed at generating immunological protection against infection of a subject with an influenza virus, and provides a method for generating immunological protection against infection of a subject with an influenza virus comprising providing a subject in need thereof with a composition comprising such defective influenza virus particle.

The invention provides a multifunctional ordered medicine release medical coating film for acute trauma and a preparation method thereof. The multifunctional ordered medicine release medical coating film for acute trauma is characterized by comprising fiber formed through coaxial static spinning; the fiber comprises a bleeding stopping and pain relieving layer and an anti-bacterial healing promotion layer arranged in the bleeding stopping and pain relieving layer; the bleeding stopping and pain relieving layer comprises one or several kinds of materials from high molecular polymers, bleeding stopping factors dispersed into the high molecular polymers and pain relieving medicine; the anti-bacterial healing promotion layer comprises high molecular polymers, antibacterial medicine dispersed in the natural high molecular polymers, and mesoporous SiO2 particles loaded with bioactive factors. The preparation method is simple; the materials can be easily obtained; the treatment and the use are safe; the prepared multifunctional ordered medicine release medical coating film can be matched with different stages of the wound healing; the medicine or active substances required for wound healing can be timely and orderly released.

A portable, small-footprint laser device contains one or more housings in which a laser energy source and an optical arrangement are disposed. The housing produces a laser beam spot that may be rotated and scanned to apply laser energy to a target area. The laser device receives treatment parameters and uses them to program a treatment regimen in which activation and movement of the housings is automated. The laser device may be used to apply a treatment regimen to a patient's hands or feet that are infected by Onychomycosis. In the treatment regimen, certain wavelengths of laser energy are applied at a predetermined duration. The treatment may be repeated, and a topical anti-fungal medication may be applied to aid in the efficacy of the treatment.

The invention discloses a plant protection pellicle, comprising 8-12 percent of polyvingl acetate emulsion,8-12 percent of humate, 3-5 percent of hydroxypropyl methylcellulose, 0.5-1 percent of alkyl sulphonates, 4-6 percent of Polyoxyethylene lauryl alcohol, 1.5-3 percent of gelatine glue, 1-2 percent of nano silica hydrated and 60-70 percent of water, and the compositions are added into water and mixed evenly to achieve black-brown suspension liquid. The plant protection pellicle has the functions of drug action, fertilizing, bagging and slow release. After dilution by water and spraying, a monomolecular film invisible to eyes is formed on the surface of the plant, thereby, the fruit tree is coated with 'clothes' immediately for thermal insulation, frost protection and drought resistance, restraining the transpiration of the moisture in the tree body, preventing the secondary infection of disease germs and improving the quality of agricultural products.

The invention discloses a trench sowing cultivation method of corns in a drought area. The trench sowing cultivation method comprises the following steps of carrying out soil preparation and film mulching and increasing moisture before winter, applying a fertilizer and seeding at the beginning of spring, managing at the seedling stage and the middle term, and managing and harvesting at the later stage. In comparison with the regular film mulching cultivation technology, the novel technology has different soil preparation and film mulching time, the annual film mulching cultivation in a furrow starts after harvesting preceding crop (in autumn), film mulching is timely carried out when soil preparation in rain, hole sowing is carried out along the furrow in spring, in comparison with sowing, the film mulching is ahead of time for 5-7 mouths, rainfall in a non-growing season can be stored for a crop growth season, so that the water desorption of soil in autumn and winter is effectively reduced, the temperature of the soil is improved, and soil nutrient is improved to be effective for creating good soil environment for growth of the corns; after many-year experiments, the result shows that in comparison with sowing in spring, by adopting the furrow film mulching cultivation, the moisture content of the soil, which is 0-20 cm under a film, is improved by 6.5-11.5%, the temperature of the soil, which is 5 cm under the film, is improved by 2.5-3.0 DEG C, the yield rate of the corns is improved by 12-25.8%, and the trench sowing cultivation method has better soil moisture conservation, warming and yield increase effects.

The present invention provides a process for preparing a retrovirus to be expressed at a high titer by specifically transferring a desired foreign gene into target cells. A pseudotyped retrovirus vector having a high titer can be prepared by transferring a DNA construction wherein a promoter, an loxP sequence, a VSV-G gene and a polyA addition signal are arranged in this order is transferred into cells carrying the retrovirus gag and pol gene expression systems, and then transferring a retrovirus vector containing the desired foreign gene thereinto, followed by treatment with a recombinase.

The invention discloses a surface spraying film agent for a plant, which relates to a plant protecting film agent which is sprayed on the surface of a plant to protect the plant and to improve plant growth quality and belongs to the technical field of plant protection. The invention is characterized in that chemical components of the surface spraying film agent comprise dibutyl phthalate, polyvinyl alcohol, an emulsifier OP-10, persulfate, sodium bicarbonate, humate, hydroxypropyl methyl cellulose, alkyl sulfonate, lauryl alcohol polyoxyethylene ester, gelatin, nanometer white carbon black and water. The invention has the following beneficial effects: the film agent forms on the plant surface a layer of a compacted netted invisible monomolecular film which cannot be seen with naked eyes; the film is ventilating but waterproof, enables a fruit, a leave and a branch to be shiny, is similar to a fruit bag, genuinely plays a role in preventing pollution, sunburn, steam burn and insect diseases and has the functions of fruit surface brightening, anti-cracking, color-improvement, inhibition of breathing, prolongation of after-harvest refreshing time and the like; and manpower, material resources and financial resources are saved.

The present invention relates to one kind of degradable disposable medical nursing material and its production process. The degradable disposable medical nursing material consists of dry fiber 100 weight portions, water repellent 5-9.3 weight portions and antiseptic 0.01-10 weight portions. Its production process includes the steps of: pulping fiber to obtain 1-6 wt% concentration slurry, adding other components, forming to obtain product with water content of 55-80 %, drying to water content of 10-16 %, hot pressing to shape, trimming and packing.

The invention discloses an antibacterial argentum-carried hydroxylapatite / carbon nanotube composite artificial bone and a preparation method thereof. Hydroxylapatite / carbon nanotube composite powder prepared by an in situ synthesis method is used as a carrier, and argentum-carried hydroxylapatite / carbon nanotube composite powder is obtained through ion exchange and ion adsorption; and the argentum-carried hydroxylapatite / carbon nanotube composite powder is used as a raw material, and the antibacterial argentum-carried hydroxylapatite / carbon nanotube composite artificial bone is prepared by a hot pressed sintering method. The artificial bone obtained by the method has obvious antibacterial effect, and not only maintains stronger mechanical property and good biological performance of the hydroxylapatite / carbon nanotube composite artificial bone, but also can treat and prevent infection so as to avoid multiple surgeries.

The invention discloses a dressing containing composite antibacterial microspheres. The dressing has the advantages of safe, broad-spectrum antibacterial, long-acting antibacterial, anti-inflammatoryand anti-swelling. Furthermore, the sterilization speed is fast so as to avoid re-infection of wounds. Porous silica is used as a carrier, nano silver particles are synthesized in situ on the surfaceof the porous silica, and the porous silica adsorb an antibacterial and anti-inflammatory extract to form the composite antibacterial microspheres. The composite antibacterial microspheres has uniformdispersion and good stability and has good antibacterial and anti-inflammatory effects due to synergistic effect of all components. Furthermore, the porous structure of the composite microspheres arefully connected to the hydrogel dressing, thereby enhancing the mechanical properties and stability of the dressing. Added collagen can fade scars and promote wound healing. Good antibacterial and anti-inflammatory effects can be achieved through the reasonable combination of common bluebeard herb, radix sophorae tonkinensis, dandelion and plant ash, and the nano silver particles synergizes withthe materials so as to make the antibacterial and anti-inflammatory effect of the dressing remarkable. The dressing containing composite antibacterial microspheres can be used for treatment of skin defect inflection caused by various reasons in clinic.

The invention discloses an electrothermal sterile mask comprising a mask body, wherein the middle part of the mask body is provided with a disinfection area for sterilizing, the disinfection area adopts an electrothermal heating disinfecting and sterilizing device, the disinfection area comprises a box body, air inlets and air outlets are arranged on the inner side surface and the outer side surface of the box body, and an electric heating device and a heating body are arranged in the box body. When inhaled nonsterile air enters the air inlets, the inhaled nonsterile air is sterilized at high temperature by the electric heating device and the heating body; after bacteria are killed, clean air can be inhaled.

The present invention provides a process for preparing a retrovirus to be expressed at a high titer by specifically transferring a desired foreign gene into target cells. A pseudotyped retrovirus vector having a high titer can be prepared by transferring a DNA construction wherein a promoter, an loxP sequence, a VSV-G gene and a polyA addition signal are arranged in this order is transferred into cells carrying the retrovirus gag and pol gene expression systems, and then transferring a retrovirus vector containing the desired foreign gene thereinto, followed by the treatment with a recombinase.

The invention discloses a preparation method and an application of quaternary ammonium epoxy siloxane particles. The preparation method comprises the following steps: 1, adding tetraethyl orthosilicate, gamma-glycidoxypropyltrimethoxysilane and dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride to a reaction container containing ethanol, fully dissolving, adding dilute hydrochloric acid, and reacting for 1-5min; 2, adding a sodium hydroxide solution to the reaction container, and reacting under stirring for 1-3h; and 3, centrifuging solids obtained after the reaction in step 2, and drying. The quaternary ammonium epoxy siloxane particles can be applied in oral antibiotic medicines. Quaternary ammonium epoxy siloxane obtained in the invention endows an epoxy resin material with non-release durable antibiotic performance, can kill bacteria residual on the root canal in the root canal treatment process, and has a bacterium reinfection prevention effect after treatment.

Production of recombinant alpha-canine interferon is carried out by augmenting alpha-interferon target gene of specific primer PCR, connecting with expression carrier PET-28a, converting colibacillus, expressing canine-alpha interferon efficiently, high-purifying, killing bacterium, split charging and freeze drying. It's simple, safe, reliable and non-toxic. It's convenient to transport and store. It can be used to treat canine parvoviral and virus diarrhea etc. diseases as broad-spectrum antiviral preparation.

The invention discloses a traditional Chinese medicine breathable health-care insole for preventing beriberi, and the traditional Chinese medicine breathable health-care insole for preventing beriberi comprises the following raw materials by weight: 25-35 parts of silica gel, 1-2 parts of fungicide, 4-6 parts of traditional Chinese medicine extract, 1-2 parts of infrared ray powder, 1-3 parts of negative ion powder, 3-5 parts of a coupling agent, 8-12 parts of polyvinyl alcohol, 16-20 parts of polyurethane resin and 8-10 parts of a processing aid. The traditional Chinese medicine breathable health-care insole is soft, flexible, comfortable, breathable and lightweight, can significantly improve and treat beriberi and tinea pedis symptoms caused by foot funguses, can permanently release negative ions, and has a good health care function; a preparation method of the traditional Chinese medicine breathable health-care insole is disclosed, the raw materials are safe and reliable, the preparation method has the advantages of low cost, simple process, easy operation and realization of industrial production, and the traditional Chinese medicine breathable health-care insole has high practical value and good application prospects.

The invention relates to a traditional Chinese medicine biological preparation for promoting female reproductive health and a preparation method thereof. The traditional Chinese medicine biological preparation comprises radix sophorae flavescentis, fructus cnidii, gallnut, aloe, radix angelica sinensis, cortex phellodendri, safflower, semen cuscutae, roselle, cranberry, propolis, lysozyme, mentholand soybean peptide. The traditional Chinese medicine biological preparation has the advantages that the traditional Chinese medicine biological preparation adopts pure natural traditional Chinese medicine components, is free of irritation to the vagina mucosa, does not destroy the clean environment of the vagina, removes the vagina peculiar smell, eliminates itching, inflammation and erosion, nourishes the vagina, has the functions of bacteriostasis, bacterium resistance, virus resistance and the like, can inhibit the growth and reproduction of bacteria, can be used for repairing the vaginalmucosa and the cervical injury, and also can promote elasticity and tightness restoration of the vagina, protect the ovary, improve the immunity of organisms and promote the female reproductive health.

The invention relates to a low-temperature disinfection method and relative device, wherein it can disinfect the polluted tools and medical device. It uses ultrasonic wave, ultraviolet and ozone, with the disinfection agent in water solution to clean and disinfect the tools. The invention has wide application.

The antibiotic silver-carrying modified artificial coral bone consists of modified artificial coral bone with controllable degradation speed as carrier and adsorbed silver ion particle. The modified artificial coral bone consists of calcium carbonate in 30-70 wt% and hydroxyapatite. The preparation process of the antibiotic silver-carrying modified artificial coral bone includes the following steps: 1. preparing modified artificial coral bone; 2. soaking the artificial coral bone in silver nitrate solution, heliophobic vacuum low temperature freeze drying, adding sodium chloride solution to form silver chloride precipitate on the surface of the artificial bone and heliophobic vacuum low temperature freeze drying; and 3. distilled water dialysis to prepare antibiotic silver-carrying modified artificial coral bone.

The invention belongs to the two technical fields such as medical preparations and medical devices, relates to new uses of a water dispersion technology in external application preparations, and discloses a pharmacologically-active chitosan / ethyl cellulose long-acting spraying agent and a preparation method thereof, wherein the components of the pharmacologically-active chitosan / ethyl cellulose long-acting spraying agent in the final solution comprise, by mass volume percentage, 0-5% of chitosan and derivative thereof, 0-10% of ethyl cellulose, 0.1-10% of an emulsifier, 0.1-10% of a plasticizer, 0.1-2% of a defoamer, 0-5% of an acid, a proper amount of a pH value adjusting agent, 0-10% of other non-essential excipients, and the balance of purified water. According to the present invention,the pharmacologically-active true film can be formed after the pharmacologically-active chitosan / ethyl cellulose long-acting spraying agent is sprayed onto the skin so as to achieve the beneficial effects of long acting, water resistance, friction resistance, wound healing promotion, scar formation reduction and spot concealing.

An antimicrobial composition and methods of use are provided. The antimicrobial composition includes a water-soluble antimicrobial organosilane ammonium compound and a sugar. The composition may be in liquid, foam, ointment or gel form. The composition may include anti-inflammatory medications, alcohol and / or steroids. The antimicrobial composition may be used to treat eye infections in humans and animals. The antimicrobial composition may be applied directly to the surface of the eye. The antimicrobial composition may further be used to treat ocular related articles, including contact lenses, contact cases, instruments, pads and the like. The antimicrobial composition may be applied directly to the surface of the ocular related article during and / or after manufacture.

An isolating system used between doctor and patient is composed of a transparent isolating cover with arc top surface, closed front surface, the arc back surface with sealing edge and operating windows at its both sides, a sucking pipe connected to the top of said isolating cover, a disinfecting-bactericiding box connected to another end of said sucking pipe and containing vacuumizing pump, disinfecting bottle and alarm device, and others (oxygenj cylinder, respiratory machine, ultrasonic atomizer, sputum aspirator and suction unit).

The present invention is one kind of externally applied Chinese medicine filming spray for treating frostbite. The Chinese medicine filming spray is prepared with nine kinds of Chinese medicinal materials, including giant knotweed, garden burnet, Chinese goldthread, asarum herb, agrimonia herb, etc. and through crushing, solvent extracting, mixing the extracted medicine liquid and filming polymer, and filling into pressure spray bottle. It has the functions of stopping pain, stopping itching, promoting blood circulation to disperse blood clots and promoting tissue regeneration, and is used to spray to the frostbite part so as to form one protecting film for preventing infection and promoting wound healing.

The embodiment of the invention provides a method and a device for tracking a virus source. The method comprises the following steps: monitoring and intercepting data packets on each network card of ahost; analyzing an SMB protocol packet from the intercepted data packet, and analyzing operation information of each stage of the SMB session from the SMB protocol packet; connecting the operation information of each stage of the SMB session in series to obtain complete file operation information and source information; storing the file operation information and the source information in a database; and when the real-time protection system detects the shared directory virus file, obtaining the source of the shared directory virus file by inquiring a database. According to the embodiment of the invention, the complete file operation information and source information are obtained by analyzing the SMB protocol packet. The method has the advantages that when the virus files transmitted by the shared directory are detected, the source of the virus is obtained by inquiring the database, so that an administrator can accurately position the source of the virus in the network, the virus is convenient to clean, and the local area network virus is prevented from being repeatedly infected.

The invention relates to construction of a PCV (Porcine Circovirus) double subtype ORF2 co-expression vector and vaccine preparation, in particular to an immunogenic composition, a preparation method and pharmaceutical purposes thereof, and a kit containing the immunogenic composition. The immunogenic composition contains Cap proteins coded by PCV2a ORF2 and Cap proteins coded by PCV2b ORF2. The invention also relates to the PCV double subtype ORF2 co-expression vector, a recombinant shuttle plasmid and recombinant baculoviruses containing the porcine circoviruses namely the PCV2a ORF2 and the PCV2b ORF2. The immunogenic composition can prevent and control the PCV more effectively and more comprehensively, the one-injection double-prevention effect is achieved, the comprehensive protection effect is provided, the number of immune times can be decreased, and the immune cost is reduced.

The invention discloses a prevention and control method for cryptocaryon irritans of scatophagus argus. According to physiological and ecological features of the scatophagus argus, the purpose of preventing and controlling the cryptocaryon irritans of the scatophagus argus is met with a combined method of nutrient enrichment cultivation and disease prevention of the scatophagus argus, drug therapy of the cryptocaryon irritans and ecological regulation, wherein therapeutic drugs are copper acetate and zeolite powder combined with copper acetate, furacilin antibiotics or an algae-inhibitory compound and furacilin antibiotics combined with the algae-inhibitory compound. The survival rate of the young scatophagus argus intensively cultivated with the method is greatly increased and reaches more than 95%; the fry survival rate of the diseased scatophagus argus is increased from 0% to 64-88%, so that the economical loss is greatly reduced. The method is remarkable and stable in effect and easy to master, popularize and apply, has the characteristics of economy, good actual effect, low toxicity, easiness for operation and the like, and has an important actual effect for establishing a technical system for disease prevention and control of the scatophagus argus and promoting the development of the breeding industry of the scatophagus argus.

The invention relates to the medical instrument technical field, discloses a bed used for medical diagnosis and treatment which is capable of automatically paving a bed sheet, and in particular discloses a medical diagnosis and treatment bed capable of automatically paving a bed sheet. The bed comprises a bed body, and a disposable bed sheet drive mechanism and is characterized in that the bed body is fixedly connected with the bed sheet drive mechanism; the bed sheet drive mechanism is connected with a drive transmission mechanism by a driven transmission mechanism through the bed sheet; the drive transmission mechanism is composed of a motor and a rocker; the motor is fixedly connected with the bed body, and the rocker is fixedly connected with a motor rotation shaft; and the motor is connected with a motor switch, through which a power supply plug is connected with the motor.