149 results about "Respiratory Mucosa" patented technology

A biological tissue sheet which is expected as exerting a favorable therapeutic effect and a high safety in transplantation. The biological tissue sheet formed by (a) preparing in vivo-derived cells; (b) sowing the in vivo-derived cells on amniotic membrane; and (c) culturing and proliferating the in vivo-derived cells in the absence of any xenogeneic animal cells. As the cells of a biological origin, for example, cells originating in corneal epithelium, conjunctival epithelium, skin epidermis, hair follicle epithelium, oral mucosa, respiratory tract mucosa, or intestinal tract mucosa.

The invention relates to an intelligent sputum suction device, which comprises a sputum suction detection warning device, a sputum suction action operation arm, a center controller, a sputum suction tube clean replacing box, a sputum suction and collection device and a sputum suction tube, wherein the sputum suction detection warning device is used for detecting and judging whether the sputum suction is needed or not; the sputum suction action operation arm clamps, pulls and feeds the sputum suction tube, and is provided with a pressure sensor used for detecting the tube feeding resistance; a clean sputum suction tube and a waste sputum suction tube are placed in different regions in the sputum suction tube clean replacing box; a sputum collecting bottle is arranged in the sputum suction and collection device; an infrared ray detector is configured for analyzing sucked sputum; and a central controller receives various detection signals, controls the actions of forward pushing, backward retreating, rotating and the like of the sputum suction tube, and controls the starting and the stopping of the negative pressure pump. The intelligent sputum suction device has the advantages that the sputum suction operation can be effectively realized; the sputum suction position is not limited in the front section of an artificial airway; the deep sputum suction can be effectively realized; the condition of infection risk increase due to mutual pollution of the sputum of a patient and sputum suction equipment is effectively avoided; and the injury on the respiratory tract mucosa of the patient caused by sputum suction operation is reduced.

The invention pertains to biological genetic engineering field, specificly relating to SARS vaccine of adenovirus carrier and preparation method, application of related coronavirus S gene in preparation of the SARS vaccine for preventing SARS. Through a bioengineering means, the related coronary virus S gene and a defective adenovirus are recombined, which makes protective immunogen protein or polypeptide expressing in it. A genic vaccine that can arouse the mucosal immunogenicity is produced through amplifying training, purification, and preparation, which induces a immunity reaction in the respiratory mucosa, makes the organism produce the corresponding antibody, and prevents virus from infection. Compared with the traditional inactivated viral particles vaccine, the invention has a high safety; it is convenient to operate; it is not limited by the specific conditions such as intramuscular injection; and it has an extensive clinical application prospect.

The invention provides a respiratory-tract magnetic-resonance spray contrast agent, which is a gadolinium-lipid compound formed from a gadolinium contrast agent and a lipid, wherein the average diameter of the compound is less than 1,000 nm, and the mean value of the Zeta potential of the compound is more than 40 mv. The lipid component is selected from at least one or combination of phospholipids, glycolipids, sterol, cationic lipids, surfactant, amphiphilic polymers, and at least contains a positive-charge lipid component. The invention also provides a method for preparing the respiratory-tract magnetic-resonance spray contrast agent. After the contrast agent is atomized and inhaled, gadolinium is effectively distributed on the surface of far-end respiratory-tract mucosa by utilizing theelectrostatic interaction between positive charges carried by the compound and negative charges on the surface of the respiratory-tract mucosa, and the distribution uniformity of spray drips on the surface of the mucosa by means of the action of the surface activity of the lipid, so that the problem that the gadolinium is only distributed on near-end respiratory tracts, is easy to gather and flows to the lower parts of the respiratory tracts after gadolinium aqueous solution is sprayed is solved, and the surface of the whole respiratory-tract mucosa is completely and clearly shown.

The invention discloses high performance biodegradation type metal machining protection liquid, which is composed of high polymer carboxylic acid, organic amine, higher alcohol, a surfactant, plant oil or synthetic lubrication grease, pure water, an antifoaming agent and preservative or bacteriacide. The high performance biodegradation type metal machining protection liquid is good in biodegradable performance. A formula of the high performance biodegradation type metal machining protection liquid can be designed by choosing the plant oil or synthetic ester and other additives. Biochemical oxygen demand (BOD) / chemical oxygen demand (COD) of 3.3% of diluent is larger than or equal to 1.0, so that the high performance biodegradation type metal machining protection liquid is excellent in lubrication performance. The frictional factor mu of the 3.3% of diluent is smaller than or equal to 0.03, and tapping torque of the 3.3% of diluent is smaller than or equal to 400N*cm, so that the high performance biodegradation type metal machining protection liquid is safe, hygienic and reliable in quality. The biological median lethal dose LD50 of the high performance biodegradation type metal machining protection liquid is larger than or equal to 5,000mg / kg, the medical lethal concentration LC50 is larger than or equal to 5,000mg / m<3>, respiratory tract mucous membrane irritation is smaller than or equal to 1 level, and the high performance biodegradation type metal machining protection liquid is friendly to human and environment.

The invention provides a traditional Chinese medicine scented sachet for preventing influenza. The scented sachet is characterized in that medicines in the scented sachet give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of preventing infectious diseases. The traditional Chinese medicine scented sachet can effectively prevent influenza.

The invention discloses incense-fumigating oil of rhizoma atractylodis and folium artemisiae argyi and relates to a natural plant medicament for external use. The incense-fumigating oil disclosed by the invention is composed of the following botanical medicinal materials in percentage by weight: 80-120 g of rhizoma atractylodis, 80-120 g of folium artemisiae argyi, 40-80 g of agastache rugosus, 40-80 g of herba eupatorii, 40-80 g of clove, 40-80 g of pepper, 40-80 g of amomum cardamomum, 40-80 g of herba elsholtziae, 40-80 g of rhizoma acori graminei, and 20-80 g of rhizoma kaempferiae. The incense-fumigating oil disclosed by the invention is an aromatic oily substance, and taken by way of being inhaled through a nasal cavity, so that the local medicament concentration of a nidus is much higher than that of the whole body, therefore, the incense-fumigating oil can directly act on the nidus part and then quickly kill pathogenic microorganisms; then, the incense-fumigating oil also can enter the blood to regulate the immune system, thereby improving the local sIgA (Immune Gloulin) content of the respiratory tract, protecting the integrity of local respiratory mucosa, and promoting the synthesis and secretion of sIgA. The incense-fumigating oil disclosed by the invention can be used as a preparation which is convenient to use, safe and effective, and has an effect of strengthening the local mucosal immune function, and enhances the mucosa which is the first defense line of the body.

The invention relates to the field of medical devices, in particular to a sputum suction device which comprises a machine body, a sputum storage bottle, an air filter, a negative pressure pump, a vacuum meter for detecting negative pressure value, a vacuum pump, a silencer, a negative pressure adjusting valve, a dual-station reversing valve, a three-way valve, an oxygen pipe, a sputum suction pipe and a trachea sleeve. The silencer is connected with an exhaust opening of the vacuum pump. The air filter is connected with an air suction opening of the vacuum pump. The air filter, the sputum storage bottle, the negative pressure adjusting valve, the dual-station reversing valve and the three-way valve are sequentially connected in series from left to right. Disinfectant is contained in the sputum storage bottle. The trachea sleeve is connected with the outlet end of the three-way valve through the oxygen pipe. The sputum suction pipe does not need to be manually pulled out, the damage to the respiratory mucosa of a patient by insufficient personal experience or misoperation can be avoided, the trachea sleeve can be well fixed in a trachea through an inner air bag so that disengagement can be prevented, and through the combination of an outer air bag and a medicine applying pipe, medicine applying and sputum suction at the position of the air bags can be achieved.

The invention provides a healthy antibiotic-free broiler chicken feeding method. The method mainly comprises the steps of conducting chicken house sterilization and drinking pipeline sterilization before chicken enter a chicken house; conducting vaccination periodically so that broiler chicken can have the immune antibody; adding immune traditional Chinese medicine to drank water to improve the habitus and immunity of the chicken, adding microecologics to drank water to restrain breeding of harmful bacteria and enable intestinal florae to be balanced, and adding respiratory tract traditional Chinese medicine to drank water so that respiratory mucosa recovery can be facilitated, respiratory mucosa inflammation can be avoided and respiratory diseases can be prevented and treated. By the adoption of the method, disease resistance of broiler chicken can be effectively improved, the health of chicken is guaranteed, the ideal feeding effect is realized, the quality of chicken can be improved, antibiotic residues in broiler products are effectively controlled, and feeding cost is effectively reduced.

The invention provides a traditional Chinese medicine scented sachet for increasing resistance. The scented sachet is characterized in that medicines in the scented sachet do not have the function of directly killing virus and bacteria, but give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of increasing the resistance.

The invention discloses superfine oil for abrasive machining of a high-lubrication and high-water-separability bearing. The superfine oil consists of mineral oil, polymeric carboxylic acid, organic amine, a surfactant, a synthetic lubricant, an anticorrosive agent, an extreme-pressure additive and an antioxidant. The superfine oil has an excellent lubricating property, a Bouton tester is used fortesting, and a friction coefficient value of raw oil is less than or equal to 0.1; the superfine oil has excellent water separability, and the separation time of oil and water is less than or equal to 10 min (50 ml of sample is added into 50 ml of water, and the mixture is turned for 10 times); and raw materials in a formula are not toxic and harmful substances which influence the environmental safety and human health, the biological median lethal dose LD50 of the product is more than or equal to 5,000 mg / kg, the median lethal concentration LC50 is more than or equal to 5,000 mg / m<3>, the respiratory mucosa irritation is less than or equal to class 1, and the superfine oil has reliable safety and sanitation quality.

The present invention provides methods for the treatment of respiratory tract mucositis in individuals in need of such treatment, the method comprising the systemic administration to the individual of therapeutically effective amounts of at least one anti-fungal agent and at least one anti-bacterial agent, wherein the treatment does not involve the cessation of use of emollients by the individual. The present invention also provides compositions suitable for use in the treatment of respiratory tract mucositis.

The invention provides a traditional Chinese medicine sachet. Medicines emit sustained aromatic odor to stimulate the respiratory mucosa of a human body to generate secreted immunoglobulin A, and an antibody plays the great role of killing virus and bacterium, so that microorganisms can not survive on the respiratory mucosa, and further the sachet plays the role of preventing the communicable disease. The traditional Chinese medicine sachet provided by the invention has the functions of faint scent, parasite expelling, acute communicable diseases avoidance, and disease prevention.

The invention relates to the technical field of biology and discloses a colonization probiotic preparation and application and medicines thereof. The colonization probiotic preparation is used for directly acting on the respiratory mucosa and comprises a surfactant and probiotics. By the surfactant, modification of a sol layer and a gel layer of respiratory tract mucus is realized, probability and speed in contact of the probiotics with respiratory mucosa cells are increased, cell surface hydrophobicity of the probiotics is changed, an adhesion rate of the probiotics and respiratory mucosa epithelial cells is increased, and accordingly the technical bottleneck of difficulty in colonization of the probiotics to the respiratory mucosa under expelling action of a mucociliary transmission system is solved. The colonization probiotic preparation can be applied to fields of preparation of medicines for treatment of rhinitis, treatment of asthma, treatment of allergic dermatitis or treatment of cranial nerve diseases, anti-nasopharynx-cancer, anti-lung-cancer or anti-cold medicines or medicines for prevention or treatment of respiratory infectious diseases.

The invention discloses a nano aqueous completely-synthetic environmental-friendly metal working fluid being composed of an organic acid, an organic amine, a corrosion inhibitor, a synthetic lubricant, a surfactant, water, a nano material and a defoaming agent. In the invention, a nano high-molecular lubricating raw material is employed for synthesizing the metal working fluid, so that the metal working fluid is greatly improved in lubricating performance (a laboratory test proves that a 5% diluted solution of the metal working fluid is not more than 0.03 in friction coefficient). The raw materials are free of harmful substances harming body health and environment safety so that the metal working fluid is greatly improved in safety and sanitation quality (a test proves that the metal working fluid is not less than 5000 g / kg in biological median lethal dose LD50, is not less than 5000 mg / m<3> in medial lethal concentration LC50 and is not higher than 1 grade in respiratory tract mucous membrane irritation).

The invention discloses a multifunctional medical breathing heat and moisture exchanger. The multifunctional medical breathing heat and moisture exchanger comprises a breathing machine air inlet, a breathing machine extension pipe connector, a plurality of fixed bulges, an air particle filtering material, a heat preservation and moisture retention macromolecule material, a liquid outlet cover, a sputum secretion collecting cavity, two stretchable hoses, a liquid outlet and a filtering cavity, wherein the breathing machine air inlet is connected to the filtering cavity through the stretchable hoses; the fixed bulges are arranged in the filtering cavity; the air particle filtering material and the heat preservation and moisture retention macromolecule material are respectively arranged in the filtering cavity through the fixed bulges; the rear end of the filtering cavity is connected to the front end of the sputum secretion collecting cavity; the rear end of the sputum secretion collecting cavity is connected to the breathing machine extension pipe connector through the stretchable hoses; the liquid outlet is formed in the sputum secretion collecting cavity; the liquid outlet cover covers the liquid outlet. The multifunctional medical breathing heat and moisture exchanger has an effect of filtering air particles and can realize a constant-temperature moisture retention effect so as to protect normal exertion of functions of cilia and glands of respiratory mucosa.

The invention discloses a production method of a product for preventing and treating respiratory diseases of livestock and poultry. The product is produced through mixing bifidobacteria, lactic acid bacteria, spore bacteria, yeast and other probiotics and metabolites thereof with one or more of Chinese herbal medicine fermentation products, prebiotics and respiratory and intestinal mucosal repairing factors. Atomizing administration and oral administration of the product cooperate with other to effectively prevent and treat the respiratory diseases of livestock and poultry, and reduce or prevent antibiotics in the raising process. The product which improves the health of the respiratory mucosae and intestinal mucosae and prevent the respiratory diseases has the advantages of increase of the feed digestibility, reduction of the raising cost, reduction of the residual of antibiotics in animal products, and provision of technical and product support for the production of green and non-residual animal products.

The invention provides a traditional Chinese medicine scented sachet for increasing resistance. The scented sachet is characterized in that medicines in the scented sachet do not have the function of directly killing virus and bacteria, but give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of increasing the resistance.

The present invention relates to a method of medicine administration for respiratory tract and an apparatus for continuous medicine administration for respiratory tract. The present invention mainly utilize a respiratory tract medicine-administrated apparatus, which includes a medicine-storing chamber, which may be attached with an opening for filling in medicine, a medicine-administrated mechanism, which is connected to the medicine-storing chamber, and a medicine-exiting port, which is connected to the medicine-administrated mechanism. The medicine-administrated mechanism includes a pusher, an air intake, and a medicine-mixing chamber. In the most front end of the medicine-exiting port, there is an arrangement of nose-inserting portion of medicine-inhaling hole with opening shape. The interior of medicine-storing chamber may be filled with powder-like medicine, and a pusher with handgrip is inserted into one side portion of the medicine-storing chamber. The medicine-mixing chamber is connected to the pusher's trough. On the upper portion of the medicine-mixing chamber, there is an arrangement of air intake for introducing air. Wherein, the medicine storing chamber is already added with powder-like medicine, and the medicine is also dropped into the medicine-retrieving portion of the pusher, after the pusher is pushed back, the medicine will drop into the medicine-mixing chamber for proceeding mixing. By inserting the nose-inserting portion into the nostril and inhaled, the medicine is mixed with air, inhaled into the nostril through the medicine-inhaling hole, entering into human body, and adhered to the mucous membrane of the respiratory tract for effectively developing the effect of the medicine. With the respiratory tract medicine-administrated method of the present invention, the medicine will be directly inhaled into the respiratory tract and adhered onto the mucous membrane to optimize the treatment for the diseases of respiratory tract.

The invention discloses a haze poison resistant spray and a preparation method thereof. The haze poison resistant spray is prepared by using sodium alginate, tea polyphenol and grapefruit seed extracts as major ingredients and using water for injection and purified water as a carrier. The haze poison resistant spray is suitable for preventing and treating viral upper respiratory tract infection, avian influenza and hand-foot-and-mouth diseases; PM2.5 hazardous substances in air are prevented from being absorbed by the respiratory tract mucosa and the lung; the haze poison resistant spray can also be directly sprayed and coated in a mask, so that the invasion of pathogenic bacteria is blocked from the breathing source. In addition, the haze poison resistant spray has no toxicity on human bodies, no irritation mucosa and no sensitization; good biological degradability is realized; good effects of resisting bacteria, resisting viruses, relieving inflammation and pain and preventing haze are achieved.

The invention relates to a preparation method of a living disinfectant. The method comprises preparation of raw materials, preparation of stable chlorine dioxide and preparation of the product of the living disinfectant. By using the product of the living disinfectant produced by the method provided by the invention, the diplococcus gonorrhoeae, colibacillus, staphylococcus aureus, candida albicans, bacillus subtilis virus, hepatitis B virus, influenza virus, fungus, mould and transmissible pathogenic bacteria can be quickly killed; the product is colorless, tasteless and nontoxic, does not produce secondary pollution, generate resistance to drugs and stimulate eyes, skin and mucosa of a respiratory tract, is an environment-friendly product and can be applied to disinfection for object surfaces, traumatic inflammation and red and swollen vulva suffering pruritus so as to clear the peculiar smell.

The invention discloses an adjustable reinforced tracheal catheter which belongs to the field of medical apparatus and instruments. The tracheal catheter comprises a soft catheter, a inflating pipe, a catheter wire and a spiral steel wire rope, wherein the soft catheter is opened at the front end and is hollow; the catheter wire is arranged in the inner cavity of the catheter; the spiral steel wire rope is arranged on the inner wall of the catheter and is used for supporting; a sleeve bag is arranged at the part close to the front end part of the catheter; the rear end of the catheter is connected with a flexible rod sleeve which is internally provided with a telescopic rod and a telescopic spring, and the telescopic rod is connected with the catheter wire and can move in the telescopic rod sleeve; and a catheter body is provided with an inflating cavity communicated with the inflating pipe. According to the adjustable reinforced tracheal catheter, the problem of unsmooth ventilation caused by the factor that a soft catheter is folded by extrusion is solved on the basis of the prior art, respiratory mucosa is not hurt, the flexibility maintenance of the front end of the catheter can be enhanced, and the operating efficiency and control force of a user on the catheter are greatly improved by cooperation of the telescopic rod and the telescopic spring.

The present invention aims at providing a vaccine composition capable of being administered to an intraoral mucous membrane, ocular mucous membrane, ear mucous membrane, genital mucous membrane, pharyngeal mucous membrane, respiratory tract mucous membrane, bronchial mucous membrane, pulmonary mucous membrane, gastric mucous membrane, enteric mucous membrane, or rectal mucous membrane, that is safe, useful as a prophylactic or therapeutic agent for infectious diseases or cancers, and capable of effectively inducing the systemic immune response and mucosal immune response. The present invention provides a mucosal vaccine composition to be administered to at least one mucous membrane selected from the group consisting of a human or animal intraoral mucous membrane, ocular mucous membrane, ear mucous membrane, genital mucous membrane, pharyngeal mucous membrane, respiratory tract mucous membrane, bronchial mucous membrane, pulmonary mucous membrane, gastric mucous membrane, enteric mucous membrane, and rectal mucous membrane, the mucosal vaccine composition containing: at least one antigen; and as an adjuvant, a lipopolysaccharide derived from at least one gram-negative bacterium selected from the group consisting of Serratia, Leclercia, Rahnella, Acidicaldus, Acidiphilium, Acidisphaera, Acidocella, Acidomonas, Asaia, Belnapia, Craurococcus, Gluconacetobacter, Gluconobacter, Kozakia, Leahibacter, Muricoccus, Neoasaia, Oleomonas, Paracraurococcus, Rhodopila, Roseococcus, Rubritepida, Saccharibacter, Stella, Swaminathania, Teichococcus, Zavarzinia, Pseudomonas, Achromobacter, Bacillus, Methanoculleus, Methanosarcina, Clostridium, Micrococcus, Flavobacterium, Pantoea, Acetobacter, Zymomonas, Xanthomonas, and Enterobacter, or a salt thereof, wherein a mass ratio between the adjuvant and the antigen (total mass of the adjuvant / total mass of the antigen) is 0.002 to 500.

The present invention provides methods for the treatment of respiratory tract mucositis in individuals in need of such treatment, the method comprising the systemic administration to the individual of therapeutically effective amounts of at least one anti-fungal agent and at least one anti-bacterial agent, wherein the treatment does not involve the cessation of use of emollients by the individual. The present invention also provides compositions suitable for use in the treatment of respiratory tract mucositis.

The invention belongs to the chemical technology field, relating to a detergent for environmental protection toilet, wherein the detergent is composed of the following raw materials by weight: 0.8-1 part of sodium tripolyphosphate, 10 parts of sodium dodecyl benzene sulfonate, 30 parts of wate, 10 parts of zeolite, 10 parts of silicat, 8 parts of aluminosilicate, 8 parts of cyclodextrin, 8 parts of activated carbon, 5 parts of clay, 5 parts of dried citrus pulp and 5 parts of corncob. The detergent has the following advantages: the detergent removes scale and smell fast, does not damage skin and closes, does not damage enamels on surface of sanitary ware, does not pollute air, does not injure respiratory mucosa of human body, has no strong pungent smell, and has the advantages of low corrosivity for sanitary sewers, and strong cleaning capability, and can weaken attachment capability of dirt so as to achieve action of continuously cleaning.

The invention provides a traditional Chinese medicine sachet for preventing a child cold. Medicine emits continuous aromatic odor to simulate a respiratory mucosa of a human body to generate a secreted immunoglobulin A; and the antibody has stronger killing effect, so that these microorganisms cannot survive on the respiratory mucosa. Therefore, the effect of preventing infectious diseases can be realized. The traditional Chinese medicine sachet provided by the invention can effectively prevent the child cold.

The invention provides a traditional Chinese medicine scented sachet for preventing influenza. The scented sachet is characterized in that medicines in the scented sachet give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of preventing infectious diseases. The traditional Chinese medicine scented sachet can effectively prevent influenza.

The invention discloses a cigarette essence capable of improving cigarette flavor and a preparation method thereof. The cigarette essence is prepared from the following raw materials in parts by weight: 16 to 20 parts of inula flower extract, 10 to 12 parts of bergamot essential oil, 8 to 10 parts of carrot seed essential oil, 5 to 7 parts of dendrobium officinale polysaccharide, 4 to 6 parts of maltol, 4 to 6 parts of isoamyl alcohol, 4 to 6 parts of geraniol, 3 to 5 parts of fennel oil, 3 to 5 parts of clove oil, 3 to 5 parts of cinnamaldehyde, and 2 to 4 parts of leaf alcohol. The cigarette essence has the advantages that the cigarette fragrance is effectively improved, the cigarette gas is softened, the irritation is decreased, and the mouth feel is improved; the inula flower has the effects of moistening lung and reliving cough, so that the effective ingredients of inula flower can be breathed into body in the smoking process, the functions of moistening lung, reducing phlegm and relieving cough are realized, the irritation of cigarette gas to respiratory mucosa is reduced, and the danger of cigarette is decreased.

The invention provides a traditional Chinese medicine scented sachet for preventing influenza. The scented sachet is characterized in that medicines in the scented sachet give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of preventing infectious diseases. The traditional Chinese medicine scented sachet can effectively prevent influenza.

The invention provides a traditional Chinese medicine scented sachet for increasing resistance. The scented sachet is characterized in that medicines in the scented sachet do not have the function of directly killing virus and bacteria, but give off persistent aromatic odor, which stimulates the respiratory mucosa of the human body to generate secreted immunoglobulin A, and such an antibody has a strong action of killing virus and bacteria, so that these microorganisms can not survive on the upper respiratory mucosa, thus achieving the effect of increasing the resistance.