286 results about "Carrier solution" patented technology

A kit and for flushing a medical device a method of preparing the kit is disclosed. The kit includes a container containing a mixed solution a unit dose of a pharmacologically effective amount of an antimicrobial agent and a second agent. The mixed solution has been mixed in a carrier solution and lyophilized. The second agent is an anticoagulant, an antithrombotic agent or a chelating agent. The kit and method are useful for maintaining the patency of indwelling medical devices such as catheters and for preventing infections caused by bacterial growth in catheters.

A method for pelletizing and taking intensive measurements of a raw sample is disclosed. The method includes homogenizing and pelletizing the sample that is to be subjected to compositional or intensive analysis. The raw sample is mixed with several solutions containing epoxies and activators based in carrier solutions or solvents, and ground to a fine powder or gel. The gel is partially dried and conformed to a pellet shape. The pellet is then cured such that the epoxy and activator solutions react and form a binding agent capable of maintaining the structural integrity of the sample pellet during intensive analysis. An intensive analysis instrument, such as LIBS, may then be used to ablate the surface of the pellet. The pellet provides consistent ablation of the sample material for accurate intensive measurements.

A drug dispensing system is provided that may be used universally and in which medical substances can be mixed with a carrier solution (13) in a simple manner. The device and system have a dispensing module (6) for medical substances and a hydrophilic nonwoven (14) with a carrier solution (13). The emission area of substance discharge openings (21, 22, 23, 24) of the dispensing module (6) are directed toward the nonwoven (14).

The present invention relates to continuous spray medications involving the scalp, such as minoxidil, finesteride, copper peptides, DHT inhibitors and androgen receptor blockers, for example, in an amount sufficient to stimulate or maintain hair growth. The scalp medication is disposed within a pharmacologically acceptable carrier solution. In further embodiments, the spray scalp medication is dispensed within a product bag containing the medication in liquid form. The product bag is disposed within a container and includes a sheet of gas impervious material having a barrier layer therein. A gaseous propellant is also disposed within the container and is substantially separated from the medication. The valve assembly is selectively operated to produce a fine mist of said medication which is non-chilling, continuous and even.

The invention relates to an antibacterial medical catheter. The antibacterial medical catheter comprises a catheter body; an antibacterial coating is coated on inner and outer surfaces of the catheter body respectively and comprises an antibacterial agent and high polymer used as an antibacterial agent carrier, wherein the antibacterial agent accounts for 0.05 to 10 percent based on the total mass of the antibacterial coating. The invention also provides a preparation method for the antibacterial medical catheter. The method comprises the following steps of: treating the surface of a medical catheter; preparing a carrier solution; preparing an antibacterial solution, namely adding the antibacterial agent into the carrier solution, and stirring until a mixture is dispersed uniformly to obtain the antibacterial solution; forming a film, namely immersing the medical catheter of which the surface is treated in the antibacterial solution, and then lifting the medical catheter slowly to ensure that the antibacterial solution naturally flows along the surface of the medical catheter to form the uniform and smooth antibacterial coating; and drying. The antibacterial coating containing antibacterial components is deposited on the surface of the medical catheter and can effectively inhibit the growth of bacteria and exert the good antibacterial capacity for a long time.

An electrodialysis method and apparatus are provided for treating a sample including trace metals in a matrix. Advantageously, the present invention allows for highly accurate detection of trace contaminants in a solution sample, in particular trace metals, substantially in real-time and on-line. The present invention includes flowing a carrier solution through a carrier solution channel separated from a sample channel by a membrane. A component of the carrier solution is diffused through the membrane into the sample channel to stabilize trace metals in the solution sample for subsequent analysis. Simultaneously, the matrix is eliminated, neutralized, and/or modified for enhanced analysis.

The invention is directed toward a sterile formable implant composition for application to a bone defect site comprising bioactive glass particles in an aqueous carrier solution, the bioactive glass particles being added to a viscous carrier at a concentration ranging from about 68% to about 76% (w/w), the carrier comprising a mixture of glycerol and polyethylene glycol ranging from 24% to 32% (w/w) with the ratio of glycerol to polyethylene glycol ranging from about 45:55 to about 65:35.

Systems and methods for treating diseases, addictions and disorders in humans and animals involving synchronizing and tailoring the administration of drug compounds with the body's natural circadian rhythms, in order to counteract symptoms when they are likely to be at their worst. Automated and pre programmable transdermal drug administration system are used. This system can also utilize a pump or pressurized reservoir, and/or a system for removing depleted carrier solution, or other modulated dispensing actuator, in conjunction with micro-fabricated structures commonly referred to as Micro-needles, or heat, or iontophoresis, sonophoresis, or a wide range of chemical permeation enhancers.

The present invention provides a method and apparatus for detecting the noncovalent binding of a potential ligand (such as a drug candidate) to a target, e.g. a biochemical macromolecule such as a protein. The method is based on the Taylor dispersion of an initially sharp boundary between a carrier solution, and an analyte solution that contains the potential ligand(s) and the target. Dispersion profiles of one or more potential ligands are monitored by mass spectrometry at the exit of the laminar flow tube. Potential ligands will usually be relatively small molecules that have large diffusion coefficients. In the absence of any noncovalent interactions in solution, very steep dispersion profiles are expected for these potential ligands. However, a ligand that binds to a large target in solution, will show an apparent diffusion coefficient that is significantly reduced, thus resulting in a more extended dispersion profile. Noncovalent binding can therefore be detected by monitoring dispersion profiles of potential ligands in the presence and in the absence of the target. In contrast to other mass spectrometry-based methods for detecting noncovalent interactions, this method does not rely on the preservation of specific noncovalent interactions in the gas phase. This method has an excellent sensitivity and selectivity, therefore it can be used for testing multiple potential ligands simultaneously. The method is therefore useful for the high throughput screening of compound libraries.

The invention relates to a test method of steel, in particular to a test method of a micro amount of arsenic or antimony in steel. The test method is based on a principle of a flow injection-hydride generation-atomic absorption spectroscopic methodology, and experiments are determined in a flow-injection sample-injection mode. The method comprises the following steps: a test solution is reduced bya thiourea-ascorbic acid mixed solution and a hydrochloric acid solution to convert arsenic (V) into arsenic (III), and convert antimony (V) into antimony (III); the test solution reacts with a potassium borohydride solution under a carrier band of a carrier solution to generate a great amount of nascent oxygen which reacts with the arsenic (III) or the antimony (III) to generate gaseous AsH3 orSbH3; the AsH3 or the SbH3 is led into a specially-designed quartz tube by high-purity argon gas as carrier gas and is atomized into ground-state atomic vapor; ground-state electrons which are on theoutermost layer of the atom are excited by the light energy of a light source of a hollow cathode lamp to transit to a high energy level; and the amount of abortion light intensity is directly proportional to the concentration of the atom. Accordingly, the arsenic or antimony content in the test solution can be quantitatively analyzed.

A photo-chemically activated micro-bubble based root canal disinfection method for disinfecting a shaped root canal comprises (a) introducing a photoactive solution into the root canal, the photoactive solution containing a photoactive compound (such as methylene blue) dissolved in an alcohol carrier solution (such as polyethylene glycol and/or ethanol); (b) removing excess photoactive solution from the root canal; (c) introducing a micro-bubble solution comprised of an oxygen carrier (such as perfluorocarbon), an oxidizing agent (such as hydrogen peroxide) and a surfactant (such as a nonionic polyoxyethylene surfactant); (d) sonically or ultrasonically activating the micro-bubble solution in the canal; and (e) introducing light into the canal.

A unique and synergistic composition is disclosed for cleansing the sinuses to reduce inflammation and improve breathing. The disclosure is also related to a composition for freshening and cleansing the sinus cavities and nostrils that includes a homeopathic ingredient and saline carrier solution. The disclosure is also related to the use of such composition to provide many anticipated and unexpected benefits that emanate from cleansing debris and microbes from the sinuses and nostrils.

The invention relates to a preparation method of an organic/inorganic hybridization nano super-hydrophobic fiber film. The method comprises the steps of dissolving a polymer carrier in water, and heating and stirring to obtain a polymer carrier solution; mixing tetraethoxysilane, water, zinc acetate and phosphoric acid, and stirring at the room temperature to obtain a mixing solution; uniformly mixing the mixed solution and the polymer carrier solution, then performing electrostatic spinning, drying in vacuum, forging, cooling and dipping in HCl solution, and drying to obtain a SiO2 porous nano fiber film; compositing and laminating the SiO2 porous nano fiber film, pouring a liquid, and drying in vacuum to obtain the organic/inorganic hybridization nano super-hydrophobic fiber film. The super-hydrophobic nano inorganic fibers have superhigh hydrophobic performance which can be maintained under the conditions of humidity, low temperature and the like without the FAS processing, is smooth and soft in hand feeling, gets rid of the limitation of the economic cost of an organic fluorocarbon and APEO and the environment-friendly limitation, and has the advantages of low price, no pollution, wide applicable range and the like.

A method of producing lipid-based micro/nano bubbles includes steps of (a) preparing a lipid mixture including one or more first lipids with different phase transition temperature, and a second lipid bonding with a hydrophilic polymer moiety or molecules capable of getting across a lipid membrane and decreasing van der Waals forces between lipid bilayers; (b) emulsifying the lipid mixture with a solvent, to form a transparent lipid carrier solution; (c) placing the transparent lipid carrier solution in a closed vessel with halo-substituted hydrocarbon; (d) manipulating temperature of the transparent lipid carrier solution to be close to a main phase transition temperature thereof; and (e) agitating in a mechanical manner the vessel containing the transparent lipid carrier solution to form micro/nano bubbles within the closed vessel. This method contributes to form micro/nano bubbles with desired diameters in a way of optimal material utilization efficiency.

The invention discloses a super-fine pearl filling and a producing method of the same for regenerated cellulose fiber blending, including a pearl powder, a water soluble dispersant and a carrier solution. The weight percentage of each component is 10-60% pearl powder, 0.5-5% water soluble dispersant and 40-80% carrier solution, the said total amount is 100%. The invention solves the problem of agglomeration of powder and distributed unevenly in the spinning process which adds a pearl super-fine powder of existing technology, the smooth finish of fiber product is good, the intension is high and the continuous production is stable.

The invention relates to a preparation method of a functional regenerated cellulose fiber. The method comprises the steps that cellulose with low polymerization degree is dissolved with a cellulose solvent, and a carrier solution of functional powder is obtained; the functional powder is mixed with the carrier solution under the intense shear effects provided by a stirring device, and a functional mother solution is obtained; the functional mother solution is injected into a cellulose spinning solution in a mode of online addition, and the spinning solution is subjected to extrusion and solidification to form the functional regenerated cellulose fiber. According to the preparation method, the problems that by means of a traditional method, the functional powder and the spinning solution are difficult to mix and dispersion is nonuniform are overcome, the used mother solution is solidified and formed with fibers and enters the solvent and the coagulating bath system without any additional auxiliaries. The forming method is simple, flexible and efficient, the production of the functional regenerated cellulose fiber can be achieved based on a conventional production line.

The invention discloses a composite material containing natural nano-hydroxyapatite and a preparation method of the composite material .The preparation method of the composite material comprises the following steps that an aqueous solution of a carrier is prepared to obtain an aqueous carrier solution, the aqueous carrier solution and the natural nano-hydroxyapatite are mixed and then subjected to irradiation sterilization, and the composite material is obtained, wherein collagen or carboxymethyl chitosan or hyaluronic acid is adopted as the carrier .The composite material prepared through the method mainly has two forms including the injection form and the sponge form; compared with the injection-form composite material, the sponge-form composite material has the main differences that freeze-drying is adopted, therefore, the preservation mode is simple, and use is convenient; the injection-form composite material has the advantage of being capable of being injected and used for filling of irregular defect sites.

The invention provides a preparation method for a copper-based methanol synthesis catalyst. The method comprises: (1) separately preparing aqueous solutions of a water soluble salt of copper and a water soluble salt of zinc, and mixing the aqueous solutions to obtain a copper-zinc mixed solution; (2) mixing water soluble carbonate and bicarbonate and preparing an aqueous solution of the mixture to obtain a double precipitator buffer liquid; (3) adding the copper-zinc mixed solution into the double precipitator buffer liquid during stirring, and stirring and aging the mixture to obtain a copper-zinc suspension; (4) separately preparing aqueous solutions of a water soluble salt of aluminum and a water soluble salt of transitional metal and/or a rare earth element, and mixing the solutions to obtain a carrier solution; (5) adding ammonia water into the carrier solution during stirring to obtain a carrier suspension; and (6) adding the carrier suspension into the copper-zinc suspension during stirring, and carrying out washing, filtering, drying, roasting and moulding treatment to obtain the copper-based methanol synthesis catalyst. The invention further provides a catalyst prepared by the method and use of the catalyst.

The invention relates to a method for gas separating, a device thereof and a novel coupled film separation method for gas separating. The material gas is separated through a plurality of separation units, the material gas of each separation unit is firstly contacted with the gas separation film of one side, the gas component forming ligand structure with carrier solution by the form of improving transfer is firstly dissolving and diffusing in the gas separation film contacted therewith, then forms ligand structure with the carrier solution to pass the thin carrier solution and contact with the gas separation film at the other side by the form of improving transfer, and desorbs at the infiltration side by dissolving and diffusing in the gas separation film; the gas component in the material gas which can not form ligand structure with carrier solution is firstly dissolving and diffusing in the gas separation film contacted therewith, then contacts with the gas separation film at the other side by the form of dissolving and diffusing in the thin carrier solution, and desorbs at the infiltration side by dissolving and diffusing in the gas separation film to arrive at the purpose for separating the material gas. The separation method of the invention can satisfy the demand for the gas high pressure separating, avoid plastic effect, prevent wetness and leak of the film, and maintain long-time stability.