34 results about "Bacteriological contamination" patented technology

The present disclosure relates to methods, compositions, and kits for determining whether a liquid contains a guaiacol-producing bacterium. In embodiments, a method comprises the steps of (a) mixing a media that changes color with a change in pH with a volume of a liquid that is potentially contaminated with one or more guaiacol-producing bacteria to create a sample, (b) placing the sample in a sterile container, (c) incubating the sample in the sterile container at about 30°C to about 60°C, (d) determining whether the sample has undergone a color change, an odor change, and / or a change in clarity following step (c), and (e) determining whether the liquid contains a guaiacol-producing bacteria based upon the determination in step (d). In embodiments, the liquid that is potentially contaminated with one or more guaiacol-producing bacteria is an acidic fruit juice. In embodiments, the guaiacol-producing bacteria are guaiacol-positive thermophilic acidophilic bacteria.

The utility model provides an antibacterial syringe, relates to the technical field of auxiliary devices of antibacterial syringes, and aims to solve the problem that an existing disposable syringe is not provided with an antibacterial auxiliary device, so that the risk that the disposable syringe is polluted by bacteria exists in the actual use process, the antibacterial syringe comprises a tube body, and a connector tube is arranged at the left end of the tube body. A needle tube is movably connected to the connector tube, an injection head is slidably arranged in the tube body, a push rod is fixedly connected to the right end of the injection head, a protection block is fixedly connected to the right end of the tube body, the push rod is slidably arranged in the protection block, and an antibacterial diaphragm is mounted at the position, close to a port, of the inner wall of the connector tube. The antibacterial diaphragm is made of a thin film material easy to puncture, a puncture end block is fixedly connected to the inner wall of the needle tube, and the cross section of the puncture end block is of a conical structure.

The utility model relates to the technical field of medical instruments, in particular to a buckle type disinfection fixing band and a disposable disinfection fixing band bag, and the buckle type disinfection fixing band comprises a band body, a first connecting part and a second connecting part. The width of the supporting section located in the middle of the belt body is larger than that of the connecting sections located on the two sides, the supporting width is large, large tightening force cannot be generated on limbs, and the comfort level of a patient can be improved. The length of the connecting section is larger than that of the supporting section, it is guaranteed that the distance between a lifting point and the limb is large, therefore, enough operation space is reserved for medical workers for limb disinfection, and bacterial contamination is avoided. The first connecting part is arranged on one of the two connecting sections, the second connecting part is arranged on the other connecting section, and the first connecting part and the second connecting part are connected in a buckling manner, so that the connecting sections can be conveniently connected and disconnected, the belt body can be conveniently switched between an unfolding state and a connecting state, operation and use are facilitated, and the disinfection efficiency is improved.

The invention relates to the field of microbiology, specifically to an antimicrobial composition comprising a first and a second bacteriophage, wherein the composition has lytic activity against E. coli O157. The invention further relates to a use of the antimicrobial composition for controlling bacterial contamination in a food- or feed environment on or in food- or feed processing equipment or food- or feed containers or in a food- or feed product.

The utility model discloses a D-dimer determination kit relates to D-dimer rapid detection reagent application field, including reagent box, the one side of reagent box is equipped with the engaging groove, and the inside movable mounting of engaging groove has extension fixture, the inside movable mounting of extension fixture has movable plate, and the one end of movable plate is provided with barbed hook, and the other end of movable plate is provided with protruding block. The utility model discloses through setting extension fixture is used for engaging the end of reagent box, can avoid medical staff or ordinary user's hand direct contact reagent box, avoid dust bacterium to pollute reagent box, reduce the risk that special blood sample is mistaken to touch simultaneously, the inside movable mounting of extension fixture has two groups and sets up movable plate of barbed hook, and extension fixture can be engaged to the engaging groove of reagent box tail portion through two groups barbed hook, and the upper and lower surface of extension fixture and the lateral surface all are provided with antiskid area, and the hand habits of different users are aimed at.

The invention relates to an antibacterial protector for drink cans that comprises an upper part (1) partially covering the upper part of the can (5) and fitted to the edge thereof, wherein an outer vertical perimeter skirt (2) extends from the edge of the upper part in contact with the upper edge of the can (5), and an inner skirt (3) extends from the edge of the upper part (1) in the space inside the can, the inner skirt preventing access to the space defined below the upper part (1), at least one end of the vertical perimeter skirt (2) comprising a tab or flap (4) to facilitate the removal of the protector. In addition to the inside face of the protector, at least the outer vertical perimeter skirt (2) comprises a hypoallergenic adhesive. The invention prevents the drink can from becoming contaminated or infected with bacteria, especially in the area that comes into direct contact with the mouth.

The invention provides for methods and compositions related to substrates used for wound care that incorporate bactericidal agents in a manner such that the agent can be anchored within the substrate, allowing for sustained protection from bacterial contamination and growth within said product throughout the duration of its usage.

The invention relates to a method for hybridizing an edible mushroom mononuclear strain breeding material and parent polyspores. The method specifically comprises the following steps: activating and culturing a mononuclear strain to be tested, collecting and activating parent spores, and mixing and hybridizing the polyspores. According to the method, a monokaryotic strain breeding material and parent polyspore hybridization technology system is constructed, polyspore directional hybridization with the monokaryotic strain breeding material as the core is achieved, the excellent hybrid strains which grow fast and are high in stress resistance can be efficiently screened out by applying the method, the bacterial pollution problem caused by conventional polyspore hybridization is avoided, and the method is suitable for large-scale popularization and application. The hybridization efficiency is obviously improved.

A biocidal composition, comprising an antibacterially effective combination of IPBC, zinc oxide, and bacterial membrane disrupting substances, and a working composition comprising water, one or more organic compounds, and a biocidal composition comprising IPBC, zinc oxide, and a bacterial membrane disrupting substance, effective for wet-state and dry-film preservation of the working composition. Also, a method of enhancing antibacterial activity of IPBC in a wet-state working composition comprising water and one or more organic compounds, comprising treating the working composition with IPBC in the presence of zinc oxide and bacterial membrane disrupting substances, and a method of treating an aqueous working formulation containing one or more organic compounds, to prevent, inhibit, or reduce wet-state bacterial contamination of the formulation, comprising treating the working formulation with a biocidal composition comprising an antibacterially effective combination of IPBC, zinc oxide, and a bacterial membrane disrupting substance.

The invention discloses a medical dressing cross-linked by visible light, a medical dressing assembly and a preparation method of the medical dressing cross-linked by visible light, the medical dressing is in a solution form, the medical dressing comprises methacrylated deferrited lactoferrin, casein, an oxidizing agent and a photosensitizer, the mass concentration of the methacrylated deferrited lactoferrin is 0.03-0.07 g / mL, the mass concentration of the casein is 0.03-0.07 g / mL, and the mass concentration of the oxidizing agent is 0.03-0.07 g / mL. The mass concentration of the casein is 0.03 to 0.07 g / mL; the amount-of-substance concentration of the oxidizing agent is 0.05 mol / L to 0.1 mol / L; the amount-of-substance concentration of the photosensitizer is 0.005 mol / L to 0.01 mol / L. According to the medical dressing, visible light is utilized for in-situ light curing, protein hydrogel is directly formed on a target part, rapid closing of a wound is achieved, potential bacterial contamination is isolated, and use is convenient.

The utility model discloses a mushroom planting container cover cleaning device which comprises an automatic uncovering machine and a cleaning mechanism, the automatic uncovering machine comprises a fixing support assembly, a conveying assembly, an uncovering assembly and a tray positioning assembly, and the cleaning mechanism is arranged under the uncovering assembly. The cleaning mechanism comprises a lifting device and a plurality of rotating rods arranged on the lifting device, a cleaning brush is arranged at the upper end of each rotating rod, each cleaning brush comprises a brush base, circular central bristles are arranged in the middle of each brush base, a plurality of groups of brushes which are distributed along the circumference are arranged on the outer ring of each central bristle, a certain distance is reserved between each group of brushes, and each group of brushes are arranged on the rotating rod. Each group of brushes is provided with multiple rows of bristles, and the heights of the central bristles and the multiple rows of bristles are matched with the concave-convex surface of the inner side of a to-be-cleaned cover; a brush mounting hole is formed in the brush base, and the cleaning brush is mounted on the rotating rod through the brush mounting hole. The bottle cap cleaning device is simple in structure and cleaner in cleaning, working efficiency is improved, and bacterial contamination caused by residues on bottle caps is reduced.

The utility model discloses an electronic cigarette holder capable of preventing pollution, which relates to the field of electronic cigarettes and comprises a cigarette holder fixedly arranged at the upper end of a smoke channel, a protective cover is arranged outside the cigarette holder, and an anti-falling rope is arranged between the side wall of the protective cover and the side wall of the smoke channel. A first magnetic ring is fixedly arranged at the opening of the protective cover, and a second magnetic ring is fixedly arranged at the upper end of the smoke channel; a control box is fixedly arranged on the inner wall of the top of the protective cover, a storage battery and a controller are fixedly mounted in the control box, an ultraviolet lamp tube is fixedly arranged at the bottom of the control box, mounting grooves are formed in one side of a first magnetic ring and one side of the protective cover, and trigger switches are fixedly arranged in the mounting grooves. A touch rod extending outwards is arranged below the trigger switch. The cigarette holder is provided with the protective cover and an ultraviolet sterilization mechanism, the cigarette holder is prevented from being polluted by bacteria, the use safety is improved, and meanwhile the protective cover is not prone to being lost and convenient to use.

Use of an aqueous solution of an acid containing a metal salt such that a conductivity of at least 30 mS / cm is obtained, as a treatment fluid for cleaning bacterially contaminated surfaces of bone implants or dental implants.

A thawing method and a thawing apparatus for thawing a frozen substance of biological origin for medicine or research within a shorter time to reduce performance deterioration of the substance by avoiding contamination with germs and reducing temperature variations at thawing. High performance and safety are sought for thawed substances of biological origin particularly for medicine or research. The frozen substance of biological origin for medicine or research is irradiated with electromagnetic waves at 60 to 140 MHz to accelerate thawing and reduce performance deterioration of the frozen substance of biological origin.

The present invention discloses a leak-proof ostomy bag, which relates to the technical field of medical devices. The bag comprises a bag body, a piston cylinder, and an elastic sleeve cover. Two piston cylinders are provided. A blocking and cleaning component for preventing contamination is installed inside the bag body. A bag bottom plate is provided on one side of the bag body. The leak-proof ostomy bag ensures that the ostomy bag can be correctly fitted and sealed, and reduces the phenomenon that the skin around the stoma loses protection and contacts with excrement for a long time due to the large size of the pocket bottom plate, thereby damaging the skin. The bag can not only be adjusted in size according to the size of the excretion openings of different patients, but also can achieve the purpose of regular cutting. When the second pull rope moves, it will also drive the long rod to slide on the upper part of the baffle plate, thereby cleaning the baffle plate, preventing waste liquid residue from condensing on the upper part of the bag body, and breeding bacteria to contaminate the patient's excretion opening when the bag is worn continuously, and keeping the inner wall of the pocket near the excretion opening clean.

The invention relates to the technical field of outer wrapping composite bags, in particular to an antibacterial infusion bag outer wrapping composite bag. The invention further relates to a preparation method for producing the outer wrapping composite bag. The anti-bacterial infusion bag outer wrapping composite bag comprises an upper-layer composite film and a lower-layer composite film, and a cavity used for containing an infusion bag is formed between the upper-layer composite film and the lower-layer composite film. The upper-layer composite film and the lower-layer composite film are both made of antibacterial materials. The upper-layer composite film and the lower-layer composite film are both made of materials with the antibacterial function, in a sterile workshop for producing the infusion bag, the outer side of the infusion bag is wrapped with the composite bag, a cavity in the composite bag can be isolated from the outside, then the infusion bag is prevented from making contact with the external environment, and then the possibility that the infusion bag is polluted by bacteria is avoided.

The utility model discloses an antibacterial nursing bag, relates to the technical field of nursing bags, and aims to solve the problems that in the prior art, when a nursing bag is used, bacteria are easy to breed in the internal environment, medical articles stored in the nursing bag are polluted, and the use effect of the medical articles is reduced. A box cover is rotatably mounted on the upper portion of the box body, a box cavity is formed in the box body, a layer plate is arranged in the box cavity and fixedly connected with the box body, a storage groove is formed in the upper portion of the interior of the box cavity of the box body, and the storage groove is made of polyvinyl chloride antibacterial plates. The inner side of the storage tank body is coated with an antibacterial coating, a cooling box is arranged in a box cavity of the box body along the lower portion of the layer plate, the upper end face of the cooling box is provided with an opening, a plate groove is formed in one side of the box body, a sealing plate is arranged in the plate groove, and the sealing plate is fixedly connected with the cooling box.

The invention provides for methods and compositions related to substrates used for wound care that incorporate bactericidal agents in a manner such that the agent can be anchored within the substrate, allowing for sustained protection from bacterial contamination and growth within said product throughout the duration of its usage.

The utility model discloses an extraction device for protein liquid, which belongs to the technical field of protein liquid extraction and comprises an extraction test tube, a test tube plug is mounted above the extraction test tube, a fastening component is mounted above the test tube plug, and a suction tube component is mounted at a position close to the center of the test tube plug and positioned on one side of the fastening component. A plugging assembly is mounted at the central position of the test tube plug and on the outer side of the suction tube assembly, and a liquid inlet tube is arranged on one side of the extraction test tube; according to the utility model, the sterilization supporting device is arranged, so that a worker can carry out certain sterilization treatment on protein liquid through the matching of structures such as a sterilization lamp and a quartz glass ring when needed, and the possibility that the protein liquid is polluted by bacteria is reduced; and a worker can support the device through cooperation of structures such as a threaded rod and a supporting ring under the condition that no structures such as a test tube rack exist, so that the working capability of the device is improved.

The present invention relates to a composition comprising a lactam, a solvent and a film-forming polymer; the present invention also relates to a method of treating a surface to improve the bacterial contamination resistance of the surface; and also to the use of a lactam and a film-forming polymer as previously defined for improved bacterial species inhibition.

The invention provides an aerosol inhalation device for pulmonary tuberculosis treatment. The aerosol inhalation device comprises a control assembly, an atomization assembly is arranged on one side of the control assembly, an air pipe is further arranged on one side of the control assembly, and the other end of the air pipe is connected with the atomization assembly; wherein a protection assembly is arranged above the control assembly, the air pipe and the atomization assembly are of a detachable structure, the protection assembly comprises a protection seat, the atomization assembly and the air pipe are detached, the atomization assembly is arranged in the protection assembly, and the atomization assembly is protected. The atomization assembly is arranged on one side of the control assembly, and the protection assembly is arranged above the control assembly and used for containing the atomization assembly, so that the atomization assembly is effectively protected, the protection effect of the atomization assembly is remarkably improved, bacterial contamination is effectively prevented, and the atomization effect and safety during use each time are guaranteed; the treatment reliability is improved, the service life of the device is prolonged, and the equipment maintenance and replacement cost is reduced.

[Problem] To provide a test lung which is resistant to mold and bacterial contamination to achieve a reduction in the risk of contamination and the burden of cleaning and which allows for visual confirmation of the appropriate time for replacement thereof to achieve a reduction in the burden of costs associated with the replacement. [Solution] This test lung comprises: a connector 8 detachably connected to a ventilator circuit 2; a shell 10 detachably connected to the connector 8 and provided with two flaps 12, the two flaps 12 being springy, detachable, and movable relative to each other; and a lung bag 11 detachably connected to the shell 10 and positioned between the two flaps 12. The connector 8 contains a filter compartment 9 having a hydrophobic vent filter 100, and further includes a confirmation hole 13 for confirming the state of the filter compartment 9.

The utility model relates to the field of refrigeration equipment, and concretely relates to a refrigerator with heating assembly, which comprises a box body, a first door body and a second door body. The first door body and the second door body are arranged on the box body and arranged left and right. The opening side of the first door body is provided with a heating assembly, and the heating assembly can be embedded in the box body when the first door body and the second door body are closed. A hinge is arranged between the heating assembly and the first door body and corresponds to the opening side position of the second door body. The refrigerator with the heating assembly can avoid the generation of condensation on the outside of the door body and eliminate bacterial contamination on the door body.

The utility model discloses an antibacterial anti-oxidation eye cream packaging bottle which comprises a bottle body and a bottle cap. An inner container is mounted in the bottle body, an antibacterial layer is arranged on the inner surface of the inner container, and an anti-oxidation layer is arranged on the outer surface of the inner container; an annular sealing edge extending downwards is arranged on the edge of the top of the inner container, an annular groove is formed between the annular sealing edge and the outer side wall of the inner container, and buckles fixedly connected with the outer side wall of the inner container are fixedly connected to the two sides of the interior of the annular groove respectively. The top of the bottle body is fixedly connected with an annular protrusion connected with the annular groove in a matched and inserted mode. The two sides of the annular protrusion are provided with clamping grooves connected with the buckles in a matched mode respectively. The inner container is installed in the bottle body, the antibacterial layer is arranged on the inner surface of the inner container, and the anti-oxidation layer is arranged on the outer surface of the inner container, so that eye cream can be effectively prevented from being polluted by bacteria, meanwhile, the anti-oxidation capacity of the inner container is prolonged, and the service life of the inner container is prolonged.

The utility model belongs to the technical field of cell culture, and discloses an anti-pollution sealing cover structure of a cell culture bottle. Comprising a bottle body, a bottle opening is fixedly connected to one side of the bottle body, and a threaded opening is fixedly connected to the top end of the bottle opening. The cleaning cover is rotated to drive the first cleaning pad and the second cleaning pad to rotate together, the threaded opening can be cleaned through cleaning liquid on the first cleaning pad and the second cleaning pad, the threaded opening is kept clean, bacterial contamination is prevented, then the bottle cap is turned over, the bottle cap is screwed to the threaded opening, and therefore the bottle opening and the threaded opening are sealed. By arranging the fixing assembly, the bottle cap and the cleaning cap can be fixed easily, and the problem that the bottle opening of the cell culture bottle is inconvenient to clean is solved.

The invention relates to the technical field of daily chemicals, in particular to a composition for reducing bacterial pollution and promoting wound healing after medical treatment and application of the composition. The composition is prepared from the following components: polyquaternium-51, a silk extract, beta-glucan and bio-saccharide gum-1. The composition disclosed by the invention can form a breathable and antibacterial film on the skin; the polyquaternium-51 firstly forms a stable basic cation layer similar to a cell membrane structure on the surface of the skin; the film can prevent water loss and inhibit static electricity and dust adsorption. The silk extract forms a layer of uniform and breathable three-dimensional fiber network with slight negative charges on the substrate. The network enhances the stability and elasticity of the whole membrane, so that the membrane does not close the skin. The bio-saccharide gum-1 and the beta-glucan are used as high-molecular polysaccharides, the viscosity characteristic of the bio-saccharide gum-1 and the beta-glucan contributes to consolidating and enhancing the stability and the water holding capacity of the composite film, and the film with good breathability, moisture retention and bacteria resistance is cooperatively formed.

The invention relates to the technical field of winding packaging, and provides a chitosan-based antibacterial winding film as well as a preparation method and application thereof. The preparation method comprises the following steps: aminating the C-6 site of chitosan, synthesizing aminated chitosan, carrying out carboxylation modification on-OH on polyvinyl alcohol to obtain carboxylated polyvinyl alcohol, and crosslinking the aminated chitosan and the carboxylated polyvinyl alcohol through a multi-aldehyde crosslinking agent to obtain the chitosan-based antibacterial wrapping film. Chitosan from non-grain biomass is used as a base material, and the chitosan-based antibacterial wrapping film integrating three functions of high stretching rate, self-adhesion and antibiosis is prepared through the synergistic effect of two different types of dynamic bonds (dynamic ionic hydrogen bonds and dynamic imine bonds). The method has important significance for solving the problems of the traditional petroleum-based wrapping film and the bacterial pollution problem in the packaging industry.

An antibacterial composite promoting wound healing, comprising at least one nanofiber layer, the nanofiber layer comprising a first fiber and a second fiber, wherein the first fiber comprises a first degradable polymer and an antibacterial agent, and the second fiber comprises a second degradable polymer and a surfactant. The antibacterial composite has good stability and hydrophilicity, and also exhibits suitable drug release properties, demonstrating excellent antibacterial and wound-healing capabilities on bacterially contaminated wounds.

A method of eliminating, reducing or preventing bacterial contamination of a surface, the method comprising dispersing a bacteriophage containing composition in air in proximity to the surface. In some embodiments, the bacteriophage containing composition is a powder dispersed by pressurizing a load chamber containing the powder so that the powder is expelled through an outlet. Also, devices for performing the method and a powder used in the method.

The present invention relates to a hydrogel composition for storing an acellular dermal matrix, a hydrogel, comprising same and exhibiting excellent moisture retention, for storing an acellular dermal matrix, and a preparation method therefor. The present invention can provide a hydrogel composition for storing an acellular dermal matrix, and a hydrogel for storing an acellular dermal matrix, comprising same, wherein the hydrogel composition comprises a crosslinked hydrophilic polymer and an antibiotic, enabling the packaged acellular dermal matric to exhibit excellent moisture retention even without a preservation solution and also can suppress the activity of the activity of immune rejection-inducing cells remaining in the acellular dermal matrix and minimize bacterial contamination that may occur during storage and distribution. In addition, the composition comprises a crosslinking regulator to enhance crosslinking uniformity of the hydrophilic polymer compound, whereby moisture retention and antibiotic action effects can be improved.