55results about How to "Suitable for sterilization" patented technology

A process for preparing the antibacterial activated carbon fibres containing nano silver particles includes preparing the activated carbon fibres by using phosphoric acid as activator, and dipping for adsorbing the silver particles by said fibres. It can kill all the Escherichia coli and staphylococlus aureus in water. Its advantages are less consumption, and high, fost and durable antibacterial effect.

The present invention provides a combined labyrinthine fluid sterilizing apparatus, comprising a chamber having an inlet and an outlet as well as a blower / fan provided in the chamber. Ultraviolet lamps are mounted in the lumen of the chamber. The lumen of the chamber is divided by a plurality of bafflers having pores. The pores in the adjacent bafflers are arranged to stagger up and down or from side to side. A mesh plate is provided at the pore. The top and bottom plates of the chamber can be flipped open. The baffler is inserted in the slots in the inner side of the front and back plates. The top and bottom plates have the pore and a cover plate which are both covered by a shield. At least one of the bafflers has a pore, and is provided with a one-way openable valve. The blower is mounted at the pore of the baffler. The chamber and the bafflers are coated with a layer of titanium dioxide. According to the present invention, it is possible to add, remove, or replace the baffler, the filter mesh, the blower or the purifying accessories and the like. The one-way openable valve can prevent the polluted water or air from flowing backwards. Further the to and fro winding disinfecting and sterilizing path prolongs the disinfecting and sterilizing process and increases the duration. With the photocatalytic effect of titanium dioxide, the organic substances are effectively decomposed, the dirt is eliminated, and deodorization and sterilization achieved. As a result, an ideal effect of disinfection and sterilization is achieved.

The invention provides a preparation apparatus for medical debridement ozonated water. The front end of a gas outlet pipe of an ozone generator (4) is arranged below the liquid level of a water storage tank (7) and is connected with a water adsorbing mouth (8) of a water outlet pipe (3), ozonated outlet gas is maintained to be introduced into the water adsorbing mouth (8), the water outlet pipe (3) is connected with a floating ball (6) and rises with the height of the floating ball (6), and the water adsorbing mouth (8) is maintained to be no more than 40 cm below the liquid level. According to the invention, through utilization of a floating ball unit, the initial fuse point of ozone gas and water is stably maintained at a fixed relative height below the liquid level in the water storage tank, the prepared ozonated water has high and stable ozone content, effluent contains considerable ozone bubbles wrapped by water, sprayed ozonated water is more suitable for sterilization of a wound and enables action time of ozone on the wound to be prolonged, and the advantages of energy saving, safety, high efficiency and low cost are obtained; the prepared ozonated water is more suitable for medical usage and has a concentration of 3 to 20 mg / L, the solvation rate of ozone is up to 80 to 90%, and volatilization of ozone is reduced, so not only waste is avoided but also pollution is reduced.

A contrast medium for the magnetic resonance (or X-ray CT) imaging of liver with high selectivity and low poison is prepared from the acid byanhydride of EDTA and DTPA and russianolive gum through reaction and then matching with the 2- or 3- valence ions of paramagnetic metal (Mn or Fe) or La- system RE element to obtain a russianolive gum modified paramagnetic metal match.

The invention discloses a sterilized milk preparation method. The method is performed according to the following step sequence: preheating raw milk, directly steam sterilizing, instantly degassing andcooling, homogenizing and filling, wherein raw milk preheating time is 2 to 45 s, a temperature of the preheated raw milk is 35 to 68 DEG C, instant degassing and cooling time is 0.5 to 40 s, and a temperature of the cooled raw milk is 15 to 70 DEG C. According to the sterilized milk preparation method disclosed by the invention, a direct steam sterilizing mode is utilized, sterilizing time is shorter, the denaturation rate of active nutrient substances of milk is low, the heat treatment strength is low, and the milk can be stored under the normal temperature. After the milk is treated by thesterilized milk preparation method disclosed by the invention, a furosine value of the milk is smaller than 12 mg / 100 g protein, a beta-lactoglobulin content is larger than or equal to 2000 mg / L, shelf life is larger than or equal to 30 days, and shelf life under 30 DEG C constant-temperature storage is larger than or equal to 10 days. The sterilized milk preparation method is suitable for milk processing process.

The invention discloses a novel cell slide glass component based on a nitrocellulose membrane and used for an exfoliative cytology examination. The component comprises the nitrocellulose membrane, and an enclosing frame used for fixing the periphery of the nitrocellulose membrane. A proper specification of a hole diameter of the membrane can be chosen according to different sizes of examined cells. Two enclosing edges are downwards provided with two clamping grooves protruding towards the inner side of the component, so that a slide glass can be sleeved along the direction and be clamped. The whole size specification of the frame is slightly larger than a standard sliding glass so that the frame can be fixed on a proper position of the slide glass, and after being covered, the slide glass can be used for observation of a membrane surface cell under an optical microscope. The component is mainly used for an extracorporal exfoliative cytology pathologic diagnosis.

The invention discloses a method for extracting and dyeing reddish-brown natural dye of oil-tea camellia shells. After cleaned and air-dried, the oil-tea camellia shell is smashed and leached with taking sodium carbonate aqueous solution as solvent. Filtered filter residues are repeatedly leached with the sodium carbonate aqueous solution. Filtrate is combined to obtain natural dye concentrate of the oil-tea camellia shell by pressure reduction, distillation and concentration. The obtained concentrate is subjected to pectin removal, filtration, pressure reduction, distillation, concentration, spray and drying to obtain the powder natural dye of the oil-tea camellia shell. Pretreated pure cotton fabric can be dyed with the natural dye of the oil-tea camellia shell to obtain fabric which is uniform in gloss. The method for extracting and dyeing the natural dye of the oil-tea camellia shell is safe and environment-friendly by taking the oil-tea camellia shell as a raw material so as to effectively utilize natural waste. The fabric dyed by the method can be made into clothing that is safe, free of carcinogenic and deforming action or causing skin sensibility, good in compatibility with ecological environment and available for biodegradation.

The invention relates to a magnetic resonance image contrast agent which uses arabinogalactan as carrier, wherein its production comprises that: using ethylenediamine tetra acetic acid, diethylene triamine pentacetic acid N-butanimide active ester, ethylenediamine tetra acetic acid, or the anhydrides of diethylene triamine pentacetic, via one short connecting arm to react with amination arabinogalactan; forming amido bond to connect ethylenediamine tetra acetic acid or diethylene triamine pentacetic acid to the arabinogalactan, to match magnetic metal ion as manganese, iron or lanthanide rare-earth element, to obtain complex. The invention has significant liver selectivity and low cute toxin. And the inventive contrast agent can be used in magnetic resonance diagnosis, X-ray CT or Y-flashimaging diagnosis.

The invention discloses a steam pasteurization method for freeze-dried food. The steam pasteurization method comprises the following steps: 1) determining sterilization temperature corresponding to the type of freeze-dried food to be sterilized, and determining target water activity at the sterilization temperature; 2) cooling the food in the step 1) to cooling temperature corresponding to the type of the food; 3) exhausting air in a sterilization chamber where the food is located; 4) introducing water vapor into the sterilization chamber, regulating vapor flow after the temperature of the food is up to the sterilization temperature, maintaining the temperature of the food to be the sterilization temperature for a specific sterilization time period, and then stopping introduction of watervapor; 5) lowering pressure in the sterilization chamber by vapor trapping; and 6) after the pressure in the sterilization chamber reaches or is close to water saturation pressure, corresponding to the cooling temperature before sterilization, introducing clean air into the sterilization chamber until a vacuum state is relieved, and taking out the food.

The invention provides a diamino polyethylene glycol modified paramagnetic metal complex magnetic resonance imaging contrast agent, and aims at solving the problems of low relaxation rate, high toxicity and large dosage of a contrast agent in the prior art. The contrast agent is prepared by the following steps: reacting 1,4,7,10-tetrazacyclododecane-1,4,7,10-tetraacetic acid compound with diaminopolyethylene glycol with different molecular weights; preparing a macromolecular ligand through an amidation reaction; and forming a paramagnetic metal complex with paramagnetic metal elements Sc, Ti, V, Mn, Cu, Mo, Ru, Fe or positive trivalent or divalent ion of lanthanide rare-earth elements. The contrast agent has the advantages of high stability, water solubility, relaxation rate and small dosage.

The invention discloses a disinfectant containing a leaf mustard seed extract. The disinfectant is prepared from the following raw materials in parts by weight: 5-10 parts of leaf mustard seed extract, 5-15 parts of tea tree oil, 10-48 parts of absolute ethyl alcohol, 3-12 parts of polyethylenepyrrolieone ketone, 10-25 parts of triton and 50-200 parts of water. The leaf mustard seed extract is prepared by the following steps: soaking black leaf mustard seeds and yellow leaf mustard seeds in ethanol water at a certain ratio; carrying out ultrasonic treatment on the soaked leaf mustard seeds in a mixed liquid of ethanol water and diethyl ether; and heating and distilling to obtain the leaf mustard seed extract. The disinfectant disclosed by the invention contains a plurality of effective components contained in the leaf mustard seeds, for example, allyl rhodanate, and other micromolecular phenols and esters such as methyl ester and butyl ester, and has a broad-spectrum bactericidal effect; and the preparation method is simple and suitable for sterilization and disinfection of animals.