65results about How to "Solve cross-contamination" patented technology

The invention relates to a fully automatic molecular electrophoresis gel imaging analyzer, which comprises a hardware system and a software system. At the same time, the all-in-one machine also adopts double-screen individual display technique and a timing power-off function. The problem of environmental cross contamination prevalent in apparatus of the type is effectively solved by integrating software and hardware systems of a computer and the gel imaging analyzer and by adopting integral design; convenience degree of experiment operation is improved through the double-screen individual display technique; energy waste is avoided by setting a timing switch; operation convenience and analysis accuracy are greatly improved through a special gel tapping device; and operational safety of the system is improved through leakproof design on a leakproof object carrying table.

The invention relates to a zinc-manganese flow battery. The battery comprises a battery module, an electrolyte storage tank, a circulating pump and a circulation pipeline, wherein the battery module is formed by connecting a single battery or more than two single batteries in series, the single battery comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode are oppositely arranged, a gap is reserved between the positive electrode and the negative electrode, and an electrolyte is an acidic aqueous solution containing divalent zinc ions and divalent manganese ions. In the battery, solid-liquid phase conversion is adopted during the reaction of the positive electrode and the negative electrode, a diaphragm is not needed, only one electrolyte loop is needed, the problem of cross contamination of the traditional flow battery is solved, and the zinc-manganese flow battery has the characteristics of long cycle lifetime, low cost and simplicity in structure and manufacturing process.

The invention discloses a medical assisted robot for instrument nurses. The medical assisted robot comprises a movable supporting mechanism, a multifunctional storage device, a composite smart mechanical arm, an end effector and an ultrasonic drying and cleaning device, wherein the composite smart mechanical arm is of a structure combining a multi-degree-of-freedom rigid mechanical arm and a flexible mechanical arm; the end effector adopts a composite absorption scheme, and pickup and recycling are designed to be mutually perpendicular and separated, so that cross contamination of instrumentscan be effectively avoided; the multifunctional storage device is provided with corresponding storage boxes according to different types and models of surgical instruments; The medical assisted robotfor the instrument nurses can flexibly move under the cooperative work of a chassis moving module, a chassis damping braking module and a distance measuring module; and the ultrasonic drying and cleaning device can effectively clean and dry the end effector. The medical assisted robot has the advantages of being compact in structure, flexible in control, convenient in use, intelligent in storage and accurate in pickup, and can be widely applied to medical assistance for surgical operations and the like.

The invention relates to a dispense interface (500, 600) comprising a body (502, 602) comprising at least a first channel structure (504, 608) and a second channel structure (506), wherein each of the at least two channel structures (504, 506, 608) comprises at least a first inlet channel (508, 512, 610) comprising a first inlet opening (516, 614) and a second inlet channel (510, 514, 612) comprising a second inlet opening (518, 522, 616), wherein each of the at least two inlet openings (510, 514, 518, 522, 612, 616) of one channel structure (504, 506, 608) is configured for fluid communication with a respective reservoir (90, 100) of at least two reservoirs (90, 100) and wherein at least one connecting channel (534, 622) configured for a fluid communication between at least one outlet opening (536, 624) and one of the at least two channel structures (504, 06, 608) is provided.

The invention discloses an ultrasonic vibration cleaning tank and a cleaning method utilizing the same. The cleaning tank comprises a cleaning tank body and an ultrasonic vibrator. The cleaning tank body is used for accommodating to-be-cleaned needle sets. The ultrasonic vibrator is fixed in an ultrasonic vibrating room, and the side wall of the ultrasonic vibrating room is mounted on a bottom groove of the cleaning tank. The cleaning tank has the advantage of simple structure and good cleaning effect.

The invention discloses a mike nipple medicated bath health care protection which comprise a support, a medical washer and spray-wash device.; the support comprises a floorstand and a side support connected to the floorstand; the medical washer a operation handle connected to the side support , the end of the operation handle is provided with the medicated bath vessel in which a convex body upward; the spray-wash device comprises a nozzle which is set on the convex body, the nozzle is connected to a reservoir through a infusion tube, the reservoir is filled with the soutuin, the solution of the infusion tube is pressure transition liquid when the cow nipple is sterilized, the whole disinfection of cow nipple is completed, the speed is high, the efficiency is high, the time from the cowing complacency to disinfection is shortened, in the condition that the negative pressure doesn't vanish completely, the disinfection can be finished, the end of the nipple can be sterilized, the problem of cross contamination caused by disinfection of existing disinfection cups is solved, the cow from the nipple is squeezed out, the health result of the cow breast is good.

The invention provides a deposition device. In the deposition device, a hollow shell is used as a reaction cavity. The deposition device comprises a supply unit communicating with the reaction cavity,wherein the supply unit comprises a reactant conveying module which is detachably connected to a reaction unit. Atomic layer deposition equipment comprises a rack and the deposition device and can beused for preparing powder surface coating layers. The atomic layer deposition equipment can effectively solve the problems of cross contamination and incomplete ALD (atomic layer deposition) particlecoating layers occurring when different thin film materials are deposited.

The invention provides an aromatic lead-free solder paste to aim at solving the problem that leaded solder paste and lead-free solder paste are difficult to distinguish in use and simultaneously improve the air quality in the environment of work sites; the aromatic lead-free solder paste consists of alloy solder powder and soldering flux paste; the soldering flux paste includes solvent, activating agent, film forming agent, tackifier, wetting agent and thixotropic agent, the soldering flux paste also contains high boiling point alcohol compounds with aromatic odor, and the weight of the high boiling point alcohol compounds with aromatic odor accounts for 0.01-50% of the total weight of the soldering flux paste. The aromatic lead-free solder paste of the invention can improve the performance of soldering flux paste, increase the identity of the product, prevent leaded solder paste and lead-free solder paste from being mixed up and strengthen fragrant stimulation to the sense organs of operators who can be exited when smelling aromatic odor; furthermore, the aromatic lead-free solder paste can create a comfortable environment and the surrounding of a production line can give off faint scent.

Provided are nucleic acid extraction apparatuses and operation methods thereof. The apparatus may include at least one cyclically moveable annular structure, at least one pipetting mechanism, at least one injection mechanism and a driving mechanism. The annular structure may be provided with a plurality of cuvette positions and a plurality of operation positions. The pipetting mechanism and the injection operation may be arranged along the annular structure. The driving mechanism may drive the annular structure to move cyclically.

The invention provides a heating device of a micro-fluidic chip. The heating device comprises a heating body which is separated for a predetermined distance from a heating area of themicro-fluidic chip and a focusing device which is used for focusing heat emitted by the heating body to the heating area. On the basis, the invention further provides a heating, temperature detection and optical detection device and method for the micro-fluidic chip and a micro-fluidic chip system. According to the invention, the problems of cross contamination and chip structure damage of the micro-fluidic chip during heating are solved.

The invention relates to the technical field of bacterial gene detection, in particular to primers, shown as sequences 1-6 in the sequence table, for LAMP (loop-mediated isothermal amplification) of a multi-drug resistant gene oqxAB, a detection kit used for detecting the multi-drug resistant gene oqxAB with LAMP and containing the primers shown as the sequences 1-6 in the sequence table, as well as a detection method for detecting the multi-drug resistant gene oqxAB with LAMP. With adoption of the LAMP technology, the specificity is high, the sensitivity is higher than that with a PCR detection method, and the defects of long time, high workload, cross contamination, complicated operation and the like in the prior art are overcome; LAMP is rapid, low in cost and applicable to field rapid detection, and an operation method is simpler.

The invention relates to a simple and environment-friendly tissue RNA extraction device. The device comprises a bottom plate, a protective cover, a grinding mechanism, a cleaning mechanism and a liquid feeding mechanism, the protective cover is arranged on the bottom plate, the grinding mechanism is arranged on one side of the top of the protective cover, the cleaning mechanism is arranged on thelower part of the grinding mechanism and on the bottom plate, and the liquid feeding mechanism is arranged on the other side of the top of the protective cover. The device has the advantages of scientific and reasonable design, simple and convenient structure, simple operation and flexible movement, effectively saves operation time and space, reduces labor cost, electrically adds liquid, accurately adjusts the adding amount of a reagent, reduces the contact frequency of operators and harmful reagents, delivers scientific research personnel from complicated experimental operation, effectively reduces the harm of toxic experimental reagents to human bodies, and ensures the personal safety of experimental operators. The device reduces artificial errors, simultaneously solves the problem of reagent cross pollution caused by repeated liquid addition, carries out the whole operation process in a low-temperature environment, effectively avoids the RNA degradation, and ensures that high-quality RNA is extracted.

The invention relates to the technical field of cuvette cleaning, and particularly relates to a cuvette group cleaning device. The cuvette group cleaning device comprises a machine box, a sewage box,a water purifying box, a cleaning box, a controller, an operation panel and a cleaning mechanism, wherein a groove with a fan-shaped horizontal projection surface is formed in the upper surface of themachine box, and a plurality of through holes are formed in the groove; the sewage box is arranged below the groove, the operation panel is arranged at the upper end of the machine box, and the sewage box, the water purifying box, the cleaning box and the controller are arranged in the machine box; and the cleaning mechanism comprises a plurality of sliding frames, a plurality of sliding blocks,a plurality of hoses, a main pipeline, a plurality of electric control valves, a plurality of nozzles, a water purifying pump and a cleaning pump. According to the cuvette group cleaning device, in the process of cleaning cuvettes, the cuvettes do not need to be moved, the cuvette group cleaning device can be suitable for cleaning most cuvette groups used by analyzers, the universality is high, the cuvettes on the cuvette groups do not need to be taken down during cleaning, the operation is simple and convenient, the cleaning effect is good, and the sewage discharging effect is good.

The invention discloses a non-contact air flotation claw device, and belongs to the technical field of air flotation transportation. The non-contact air flotation claw device comprises a negative pressure shell, a positive pressure shell and an air flotation suction disc adapter, wherein the negative pressure shell is connected with a negative pressure air pipe, a negative pressure air cavity is formed in the negative pressure shell, and the negative pressure air cavity communicates with the negative pressure air pipe; the positive pressure shell is connected with a positive pressure air pipe,a positive pressure air cavity is formed in the positive pressure shell, the positive pressure air cavity communicates with the positive pressure air pipe, a plurality of negative pressure air holesand a plurality of positive pressure air holes are formed in the lower end surface of the positive pressure shell, the positive pressure air holes communicate with the positive pressure air cavity, and the negative pressure air holes communicate with the negative pressure air cavity; or a plurality of negative pressure air holes and positive pressure micropore breathable composite materials are arranged at the lower end surface of the positive pressure shell; and the air flotation suction disc adapter is arranged on the upper end surface of the negative pressure shell. The non-contact air flotation claw device is simple in structure, environment-friendly and clean, and solves the problems of pollution and scratch caused by a glass substrate in the conveying process.

The invention discloses a water quality analysis system and method. The water quality analysis system comprises a plunger pump, a reaction unit, a chemical storage unit and a multi-channel valve, wherein the plunger pump controls chemicals in the chemical storage unit and a to-be-tested water sample to enter the reaction unit through the multi-channel valve, the reaction unit detects and analyzesreacted chemicals and to-be-tested water sample, the chemicals and the to-be-tested water sample are isolated by air and pure water in a feeding process, cross contamination between the chemicals is avoided, and water quality analysis precision is improved.

The invention discloses an efficient pollution-free casting melt homogenous refinement treatment device and method and belongs to the technical field of metal material heat processing. The device is composed of a wire feeding/returning mechanism, an additive wire material or bar material, a disturbance driving mechanism, a heater, a wire material or bar material end head and a melt containing cavity. The additive wire material or bar material is located on the center line of the melt containing cavity. The disturbance driving mechanism is located between the wire feeding/returning mechanism and the wire material or bar material end head. The heater is located between the disturbance driving mechanism and a melt liquid level. The wire material or bar material end head is quantitatively immersed below the melt liquid level. Homogenous refinement treatment is conducted on casting melt through the device, and two melt processing processes, namely additive adding conducted in real time and stirring, are combined into one ingeniously, so that the problem that a stirrer and the melt are interactively polluted is solved; and meanwhile, adding speed of additives is greatly increased. The efficient pollution-free casting melt homogenous refinement treatment device and method have the beneficial effects that self-melting is achieved; zero pollution is achieved; and cleaning is not needed.

The invention relates to a cleaning and clean keeping device for a human body electron detection mirror and an application method. The cleaning and clean keeping device specifically at least comprisesan equipment body, an infection preventing cylinder and a sterilization device. The infection preventing cylinder is specially used by special people. The sterilization device is arranged at the bottom of the equipment body. The infection preventing cylinder is assembled in the space in the infection preventing equipment body. The infection preventing cylinder is arranged on the bottom end face of the sterilization device. The shape of the part of the contact face of the upper end face of the sterilization device and the bottom of the infection preventing cylinder is a protruding block in anygeometrical shape. The contact part of the bottom of the infection preventing cylinder and the upper end face of the sterilization device is a groove with a corresponding shape. The outer end face ofthe base of the infection preventing cylinder and the upper end face of the bottom end face of the sterilization device are arranged in a convex-concave sleeving manner so that the infection preventing cylinder specially used by special people can be conveniently sleeved and replaced. According to the cleaning and clean keeping device for the human body electron detection mirror and the application method, the problem of repeated multi-time contact with a contaminated electron mirror and cross infection does not exist, and the cleaning and clean keeping device is high in practicability and has wide purposes particularly in the fields of medical treatment, hospitals and the like.

The invention relates to an infusion container in the field of medical packaging materials. The infusion container comprises a container body provided with a cavity, and a cavity opening is formed inthe cavity; a movable sealing block located at the cavity opening is arranged on the container body; the container body opens the cavity opening through the movable sealing block; a movable sealing cover surrounding the outer side of the cavity opening is arranged on the container body, the movable sealing cover cooperates with the container body to conduct sealing to block communication of internal parts and the external world, or a releasable sealing cover surrounding the outer side of the cavity opening is arranged on the container body, and the releasable sealing cover cooperates with thecontainer body to conduct sealing to block communication of the internal parts and the external world. By arranging a protection film, the movable sealing cover, the releasable sealing cover and a blocking device, it can be guaranteed that infusion transportation, storing, dispensing, conveying, dispensing, conveying and operation whole process can be in a protection state, and the infusion safetyis facilitated.