59 results about "Bacteriological contamination" patented technology

The utility model belongs to the technical field of agricultural tools, and particularly relates to a towel gourd bleeding sap sterile collection bag which comprises a main body, a stand is arranged below the main body, a partition plate is arranged on the inner wall of the main body, and a first bayonet and a second bayonet are respectively arranged on the surface of the partition plate. And a sleeve rod and a reset spring are arranged on the inner wall of the main body. According to the sterile collection bag for towel gourd bleeding sap, two pressing rods are arranged to be slidably connected with a first bayonet and a second bayonet respectively, the pressing rods are driven to slide downwards when a pressing plate is pressed, the two pressing rods drive the first bayonet and the second bayonet to slide on the surface of a partition plate to be away from each other, and a stem notch is inserted into the bag; after the vines are taken out, the two reset springs drive the first clamping opening and the second clamping opening to slide on the surface of the partition plate to be close to each other and reset, and the technical problems that an existing device is too large in bottle opening, poor in sealing performance, rich in bleeding sap nutrition and prone to bacterial contamination are solved.

A method of preventing microbial contamination in a food product or composition is disclosed. Also disclosed are preservative compositions prepared using the reducing gas, which can be used to extend the shelf life of food products and compositions and / or to prevent bacterial contamination. Also disclosed are food products and compositions prepared using the disclosed preservative compositions. Methods of making the preservative compositions and food products are also described.

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 invention relates to the technical field of design and manufacturing of medical instruments, in particular to a vagina sealing device for laparoscopic cervical cancer surgery, which comprises a placing base, an antibacterial cover is slidably connected to the upper surface of the placing base, and a storage mechanism is arranged on the inner side surface of the placing base. And a loop ligature mechanism is arranged on the surface of one side of the storage mechanism. According to the vagina closing device for the laparoscopic cervical cancer surgery, through the arrangement of the loop ligature mechanism, the vagina closing process is simplified, medical staff can conduct the surgery more conveniently and smoothly, and the tedious operation of repeated adjustment to achieve the ideal cerclage state is reduced; on the other hand, when the ligation mechanism is taken, the ligation mechanism can be prevented from touching other ligation mechanisms and causing secondary pollution to the ligation mechanism, the operation infection risk can be reduced, and the operation safety and the health of a patient are guaranteed.

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 utility model discloses a sodium hyaluronate gel detection box, which comprises a detection box main body, the top of the detection box main body is provided with a sealing cover assembly, the sealing cover assembly comprises a lower cover and an upper cover, the inner side of the detection box main body is provided with an isolation assembly, the isolation assembly comprises a partition plate and a sealing plate, the lower cover is provided with an observation assembly, and the lower cover is provided with a sealing plate. The observation assembly comprises a colorimetric card and a magnifying lens, the lower cover is provided with a medicine adding assembly, the medicine adding assembly comprises a material box and a valve, the sodium hyaluronate gel detection box can perform disinfection and sterilization work on the detection box main body, the interior of the detection box main body is prevented from being polluted by bacteria, the reliability of a detection result of sodium hyaluronate gel is guaranteed, and the detection accuracy is improved. And if the lower cover and the upper cover are not completely closed or are opened by mistake, the ultraviolet lamp is turned off, so that ultraviolet rays are prevented from being emitted outwards, the injury of the ultraviolet rays to personnel is avoided, the working safety of the personnel is effectively guaranteed, and the sodium hyaluronate gel detection device is suitable for detection of sodium hyaluronate gel.

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.

To provide efficient detection of bacteria producing type II cytolethal distending toxin.SOLUTION: Disclosed is a method for determining contamination possibility by Escherichia albertii, a type II cytolethal distending toxin-producing bacterium, which comprises a step of contacting a subject sample or DNA extracted from the sample with a primer set so as to amplify a target gene fragment in the sample, where the preferred primer set comprises a primer having a base sequence represented by one of SEQ ID Nos: 48-58 and a primer having a base sequence represented by one of SEQ ID Nos: 59-67.SELECTED DRAWING: Figure 1

The invention relates to the technical field of medical instruments, in particular to packaging equipment for sterilized surgical instruments used in a hospital disinfection and supply center, the packaging equipment comprises a platform, a conveyor and a plurality of base plates, the conveyor is fixedly connected to the top of the platform, and a packaging bag is made to move from left to right through the conveyor; the multiple base plates are installed on the surface of a conveying belt of the conveyor at equal intervals, the sealing positions of packaging bags are placed on the base plates, and the disinfection mechanism, the sealing mechanism and the air leakage detection mechanism are installed on the top of the conveyor from left to right. The equipment realizes automatic packaging, not only can keep the cleanliness of the disinfected surgical instruments in the packaging link, but also has the functions of packaging, detecting and screening, and has the unique advantages of complete sealing airtightness of packaging bags, low bacterial contamination rate in the packaging link and high cleanliness of the surgical instruments before sterilization while improving the overall disinfection and supply speed.

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 utility model provides a conduit tip collection container which comprises a container body, a fixed cover plate, a rotary cover plate and a sealing cover, the fixed cover plate is arranged at the open end of the container body, and the sealing cover is detachably connected with the fixed cover plate; the rotary cover plate is connected to the fixed cover plate and is in rotary fit with the fixed cover plate; a first through groove is formed in the fixed cover plate, and a second through groove is formed in the rotary cover plate; a blade is arranged on the fixed cover plate, and a cutting edge on the blade is located in the first through groove; the rotary cover plate is provided with a rotary limiting groove, the fixed cover plate is provided with a locking boss, the locking boss is located in the rotary limiting groove, and one end of the rotary limiting groove is provided with an elastic buckle body. When the tip of the catheter is collected, the tip of the catheter can be sheared only by rotating the rotary cover plate, the operation is simple and quick, the time for exposing the tip of the catheter in the operation process is shortened, and the risk that the tip of the catheter is polluted by external bacteria is effectively reduced.

The present invention belongs to the technical field of devices for treating eyes, and in particular to a myopia prevention and control atomization nursing device and its nursing method. In view of the problems existing in the prior art, such as inconvenient use, easy damage to the eyes, easy contamination of the liquid medicine by external bacteria, and unsatisfactory absorption of the drug effect, the following solution is proposed. It includes a medicine box, and an atomizing head for evenly atomizing the liquid medicine into tiny particles is fixed on the inner wall of the bottom of the medicine box. An L-shaped air pipe and a storage box are fixed on the top of the medicine box, and the L-shaped air pipe is used for injecting air into the medicine box. A pair of goggles is stored in the storage box, and a cover plate is hinged to the top of the storage box through a hinge. By covering the eyes with the goggles and atomizing the liquid medicine into droplets and injecting them into the goggles, the present invention not only improves the absorption efficiency of the drug, but also is convenient to operate, avoids damaging the eyes, and can prevent external bacteria from entering the medicine box to contaminate the liquid medicine by opening and closing the L-shaped air pipe.

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.

Disclosed is a method for producing at least one oxygenated product from a gaseous substrate containing CO, CO2, and optionally H2. Also provided are methods of using a broth lacking thiamine or a thiamine precursor containing thiazole as a screening tool for suitable ethanol-producing acetate-producing carboxydotrophic bacterial strains, methods of operating syngas fermentation without the addition of thiamine or a thiamine precursor containing thiazole, methods of controlling bacterial contamination in a bioreactor, and methods of preparing animal feed and fertilizers.