434 results about "Pipette" patented technology

Device for containing liquid, of the type container or circulation circuit, and methods of manufacturing this device. The invention relates to a device (1) for containing liquid, of the type container or thermal regulation circuit with heat transfer fluid, comprising at least one metal wall (2) which has openings (3, 3') for the passage of the liquid through said wall (2), a supply or discharge pipette (4, 4') being present on the external face of said wall (2), at the level of each opening (3, 3') and being connected in a hermetic manner to the opening (3, 3') concerned.Device (1) characterized in that each pipette (4, 4') is a pipette made of thermoplastic material, attached exclusively indirectly to the metal wall (2), around the relevant opening (3, 3'), through an intermediate metal piece (5), assembled directly with the outer face of said metal wall (2), and / or, through an intermediate piece or layer made of thermoplastic material (5'), attached by welding or overmolding onto the outer face (2') of said metal wall (2) or onto an intermediate metal piece (5) assembled directly with said outer face (2') of the metal wall (2). Figure to be published with the abbreviation: Fig. 5A.

The invention belongs to the technical field of laser volume calibration, and particularly relates to a laser volume calibration system for a laboratory portable pipettor, which comprises a volume calibration equipment main body and a calibration container, and is characterized in that the volume calibration equipment main body is integrated with an integrated optical measurement module, a data acquisition and intelligent processing unit and a man-machine interaction module; the height change of the liquid level center point can be accurately measured, the specific forms such as the contact angle, the curvature radius and the depth of the liquid level meniscus can be captured and analyzed in real time through images, the liquid level form correction module can accurately calculate the missing volume caused by the concave meniscus by using the parameters, and the accuracy of the missing volume is improved. According to the method, the actual liquid level height is calculated and compensated to the final actual liquid level height, the systematic measurement deviation caused by neglecting the geometrical shape of the meniscus in a traditional single laser ranging method can be fundamentally solved, the volume measurement precision is remarkably improved, and the calibration precision can be improved to a new level.

The invention relates to the technical field of medical inspection equipment and portable cold chain control, in particular to a foldable temporary inspection reagent refrigeration box temperature control and pipettor waste liquid early warning system. The system is composed of a semiconductor refrigeration and phase change cold storage composite temperature control unit, a reagent position RFID and expiration management module, a temperature, humidity and vibration monitoring module, a waste liquid collection and liquid level and component monitoring unit, an edge control and information interaction terminal, a pipettor interface control module, a folding state detection module and a power supply and battery management module. 2-8 DEG C closed-loop temperature control and timing temperature return are realized; when the event is close to a threshold value, alarming and prohibiting cover opening, and locking suction and discharge; and recording the cold chain and tracing. According to the technical scheme, 2-8 DEG C closed-loop temperature control and timing temperature returning are achieved, automatic temperature control tightening, cover opening forbidding, suction and exhaust locking and chain type tracing are achieved in the abnormal state, and the problems that temperature control beside a mobile station is disjointed with authority, and tracing is insufficient are solved.

The present disclosure generally relates to microfluidics, and to systems and methods for controlling the introduction of fluids. For example, certain aspects are generally directed to microfluidic devices having ports able to direct the end of a pipette tip into an end portion that is sized so as to allow fluid to flow from the pipette tip into an exit fluidly connected to a microfluidic channel. For example, the port may have a tapered portion that directs the pipette tip to the end portion. The end portion may be sized such that it is difficult for fluid to backflush around the pipette tip, and thus, the fluid is able to flow into microfluidic channels within the device, e.g., without resulting in excessive fluid remaining within the end portion. Other aspects are generally directed to methods of making or using such microfluidic devices, kits including such microfluidic devices, and the like.

An automated analyzer that receives samples prepared for analysis in an automated pre-analytical module and a method of operation of such automated analyzer. The automated analyzer includes a shuttle transfer station that receives a shuttle carrier from the automated pre-analytical system. The shuttle transfer station has a clamping assembly for the shuttle. The clamping assembly has jaws that advance engagement members into contact with a bottom portion of sample containers disposed in the shuttle. The clamping assembly secures the sample containers in the shuttle when sample is aspirated from the sample containers. The automated analyzer also has a multichannel puncture tool that is adapted to be carried by a robotic gripper mechanism. The multichannel puncture tool has multiple puncture members that each defines a channel. Each channel is in communication with a different trough in the consumable. A pipette can pass through the channel in the puncture tool.

The present invention relates to a mini-pipette, and more particularly, to a mini-pipette which has capacity varying means that can vary the movement distance of a push button reciprocating in the outer body to generate suction force so that a variety of samples can be easily collected. The present invention provides a mini-pipette comprising: an outer body having a hollow movement space and a suction passage formed at a lower part of the outer body; a push button for generating negative or positive pressure in the suction passage while reciprocating in the movement space of the outer body; elastic means for elastically supporting the push button in the movement space; and a capacity varying means formed inside the outer body, for varying a movement distance of the push button in the movement space.

The utility model mainly relates to general chemical or physical experiment equipment, in particular to a multi-channel pipette tip, which comprises a mounting shell with the top communicated with a pipette, linearly arranged mounting holes are arranged at the bottom of the mounting shell, pipette tip bodies are inserted into the mounting holes, first fixing rings are arranged on the pipette tip bodies, and the pipette tip bodies are provided with second fixing rings. Every two adjacent first fixing rings are fixedly connected through a first connecting piece. Mounting rings are arranged on the pipette tip bodies located at the two ends, the side walls of the mounting rings are fixedly connected with one ends of L-shaped rods, the other ends of the L-shaped rods are matched with inserting grooves formed in the bottoms of the mounting shells, sliding grooves are formed in one sides of the inserting grooves in a communicating mode, movable rods are slidably mounted in the sliding grooves, and clamping blocks are fixedly mounted at one ends of the movable rods; and the other end of the movable rod extends to the outer side of the mounting shell and is provided with a handle, a spring is arranged on the movable rod, and the two ends of the spring are connected with the mounting shell and the handle correspondingly.

The utility model discloses a kind of consumable press-fitting devices. Consumable press-fitting device is used to press-fit consumable, and consumable press-fitting device includes adapter base and adapter gland, adapter base is used to support and position consumable, adapter gland is detachably connected with adapter base, and accommodating cavity that can form containing consumable between adapter base and adapter gland, adapter gland includes avoiding hole part. After adapter gland and adapter are disassembled, consumable provided with sealing membrane can be smoothly placed on adapter base, and after adapter gland and adapter base are assembled, avoiding hole part makes part of consumable exposed, and pipette tip can conveniently pass through sealing membrane and enter inside consumable, and adapter gland compresses consumable, so that pipette tip consumable is not taken away, the stability of consumable is good, the continuity of experiment can be guaranteed, and the efficiency of automated pipetting is improved.

This utility model relates to the field of pipette technology, specifically to a rotary pipette holder, comprising a base, a column, and a locking mechanism. The base has a detachable collection box with an upper opening, and the collection box has a through hole in the middle. The column includes a first column and a second column. The lower end of the first column passes through the through hole and is rotatably connected to the base. The upper ends of the first column and the lower ends of the second column are fixed or separated by the locking mechanism. The upper end of the second column has a support member for holding the pipette. The collection structure of this utility model allows for a clear view of the amount of liquid dripped from the pipette, and the collection structure can be detached from the holder for easy cleaning.

This application relates to a sample pretreatment system, comprising: a gripping device for holding the cap of a sampling tube; a capping device for holding the tube body of the sampling tube and for rotating the tube body while the gripping device holds the cap to open or close the cap; a liquid injection device for injecting organic solvent into the tube body held in the capping device and containing the sample to be tested, to obtain a mixture; a mixing device for mixing the mixture in the sampling tube; a centrifugation device for centrifuging the mixed mixture in the sampling tube to obtain a supernatant; a filtration device for filtering the supernatant to obtain a filtrate; a pipette device for drawing at least a portion of the supernatant from the sampling tube into a pipette or injecting the supernatant from the pipette into the filtration device; and a transport device. This application improves processing efficiency and ensures the consistency of pretreatment results.

1. Name of the designed product: pipette. 2. Use of the designed product: pipetting. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

According to an example aspect of the present invention, there is provided an adapter for holding a pipette, the adapter comprising a body element, said body element configured to hold a pipette; wherein the adapter is configured to be attached to at least one rail at any point along the rail, said at least one rail comprising at least one electrical conductor, said electrical conductor extending at least partially along the length of the at least one rail.

The invention relates to a single-channel pipette liquid level detection method and device based on an embedded platform, and the method comprises the steps: controlling a Z axis to enable a pipette to descend from a zero point, obtaining a first air pressure difference waveform of the pipette, and adjusting the speed parameter of the Z axis until the first air pressure difference waveform is in a stable state in the descending process; the Z axis is controlled to descend according to the speed parameters, so that the pipette extends into the liquid level, and a second air pressure difference waveform in the pipette is obtained; extracting liquid touching air pressure characteristics in the second air pressure difference waveform, and adding the extracted liquid touching air pressure characteristics into a reagent database; the Z axis is controlled to descend according to the speed parameter, a third air pressure difference waveform in the pipette is obtained, and when the characteristic of the third air pressure difference waveform is matched with the liquid touching air pressure characteristic, it is judged that liquid touching is conducted. The air pressure difference waveform characteristics replace the traditional air pressure threshold to judge whether the liquid is touched or not, so that the stability and adaptability of liquid level detection are improved, and a series of problems caused by detection failure in an extreme environment are effectively avoided.

A method for preparing an aliquot of solution is disclosed. The method includes agitating the solution with a baffle at a predetermined mixing speed to suspend the plurality of particles in the solution, wherein the baffle positioned at least partially within a vessel containing the solution, and wherein the vessel is engaged with a vessel receptacle configured to hold the vessel. The method also includes withdrawing, during the agitating, the aliquot of solution from the vessel with a pipette, such that an end of a pipette tip is positioned within the vessel.

The invention relates to the field of immune cell chemistry, and discloses an immune cell chemical staining instrument and a use method thereof.The immune cell chemical staining instrument comprises a workbench, a sample bearing unit, a temperature control unit, a liquid treatment unit and a dynamic uniform mixing unit, and cover glass in holes of a cell culture plate of the sample bearing unit can bear samples; a reagent in the reagent bin can be added into a hole of the cell culture plate by a pipetting arm of the liquid treatment unit, the temperature control unit can control the temperature of the reagent in the hole of the cell culture plate, and the dynamic uniform mixing unit can drive the cell culture plate to reciprocate, so that liquid in the hole of the cell culture plate is uniformly mixed. Reagents are automatically added through the liquid treatment unit, the experiment operation efficiency is improved, pollution caused by manual intervention is avoided, the reagent temperature is controlled through the temperature control unit, and the experiment accuracy is improved; meanwhile, the dynamic uniform mixing unit is used for driving the cell culture plate to reciprocate, so that the reagent incubation uniform mixing effect is enhanced.

The application provides a pipetting control method and device, the method comprising: determining a pipetting type, a pipetting speed of a pipetting device, a target pipetting volume, an initial liquid volume of a target liquid container, and a container type of the target liquid container; determining a target liquid level height function matched with the container type of the target liquid container according to a liquid level height function corresponding to each container type in a configuration; determining a liquid level height difference of the target liquid container before and after pipetting based on the pipetting type, the target pipetting volume, and the initial liquid volume, and in combination with the target liquid level height function; determining a moving direction and a moving speed of a pipetting tip of the pipetting device based on the liquid level height difference, the target pipetting volume, the pipetting speed, and the pipetting type; and controlling the pipetting tip of the pipetting device to pipette the target liquid container according to the moving direction and the moving speed. The application can reduce the liquid volume deviation of the pipetting device in the pipetting process.

According to an example aspect of the present invention, there is provided a box for disposable pipette tips, comprising: a base portion forming a container to receive the pipette tips therein; a cover portion movable to a closed configuration where the cover portion closes the base portion into a closed container; and a flexible hinge joining the base portion and the cover portion to each other.

The utility model belongs to the field of laboratory storage devices, and particularly relates to a wall-mounted experiment table top storage device for a chemical teaching laboratory, which comprises a back plate (15), a folding iron support assembly and a wall-mounted commodity shelf assembly, a mounting groove (1) and a magnetic suction plate (2) are respectively and fixedly arranged on the back plate (15) in the longitudinal direction; the folding iron stand assembly comprises a fixed sleeve (5), a telescopic frame and a supporting rod (9); the left end and the right end of the telescopic frame are connected with the fixing sleeve (5) and the supporting rod (9) respectively. A hanging piece (4) is fixedly arranged at the position, corresponding to the mounting groove (1), of the fixed sleeve (5); the wall-mounted storage rack accessories comprise a wall-mounted dual-purpose pipette rack (13) and a wall-mounted reagent rack (14). According to the utility model, the space occupancy rate is low, the experiment efficiency is high, the iron stand can be folded for storage, the height of the back plate is adjustable, and the layout of glass instruments and reagent bottles can be flexibly adjusted.

A height-adjustable damping device for a pipette and a pipette. The height-adjustable damping device for a pipette comprises a sheath (1), an elastic member (2) and a limiting structure (3), and the pipette comprises a sampling rod (100). The sheath (1) is provided with an axial through hole (11); the elastic member (2) is disposed in the axial through hole (11), a first stepped surface is provided on the inner wall of the axial through hole (11), and two ends of the elastic member (2) respectively abut against the first stepped surface and the sampling rod (100); and the limiting structure (3) is disposed on the sampling rod (100), and the limiting structure (3) can abut against the sheath (1) to limit a lower limit position of the sampling rod (100). The device can prevent contact damage between the sampling rod (100) and a detection test paper, reduce the requirement on distance precision of the pipette during the pipetting descending process, thereby reducing the precision design cost and component processing difficulty, and improving the success rate of one-time sampling and pipetting of the sampling rod (100).

The invention relates to the technical field of robots, and discloses a precise pressure control type medical examination pipettor gun head cleaning robot. The pipette tip is installed in the tip isolation shell, at the moment, the water level is located at the position of a first liquid level indicator, the robot automatic cleaning barrel is rotated to enable the tip isolation shell to be horizontally placed, then the robot automatic cleaning barrel is rotated to enable the pipette tip to be vertically upward, and at the moment, the tip isolation shell is full of cleaning liquid; a first switch is turned on, waste liquid in a pipettor gun head is transferred into a robot automatic cleaning barrel, waste liquid in a gun head isolation shell is transferred into the pipettor gun head under the siphoning effect, then the water level is supplemented to a second liquid level indicator, cleaning liquid starts to enter the gun head isolation shell at the moment, and when the cleaning liquid is supplemented, the robot automatic cleaning barrel is opened. And the water level is lowered to a third liquid level indicator, meanwhile, a first switch and a robot waste liquid water pump are turned on, waste liquid is discharged, and efficient cleaning of the pipette tip is achieved through repeated cleaning.

The utility model discloses an anti-corrosion multichannel pipettor which comprises an anti-inclination frame and an empty cylinder, a plurality of cylinder shells are arranged on the anti-inclination frame, sliding blocks are connected in the cylinder shells in a sliding mode, circulating grooves are formed in the surfaces of the sliding blocks, clamping rods are rotationally arranged in the cylinder shells, the clamping rods at the upper ends are inserted into the circulating grooves, springs are arranged between the sliding blocks and the cylinder shells, and the sliding blocks are in transmission connection with clamping devices. The empty cylinder is connected with the clamping device, and a piston handle is connected into the empty cylinder in a sliding mode. A plurality of empty cylinders are fixed on the double-layer disc through an assembly plate, sampling taper pipes are sleeved with the empty cylinders, after the empty cylinders are marked, errors are not prone to occurring in use, a pressing column is pressed downwards to enable a sliding block to be clamped by a clamping rod, at the moment, the corresponding sampling taper pipe moves downwards, a piston handle is lifted upwards to enable the sampling taper pipe to extract liquid, use is flexible and convenient, various kinds of liquid can be conveniently moved, and the sampling efficiency is improved. The counterweight seat supports all the empty cylinders and the sampling taper pipe, so that the sampling taper pipe is prevented from toppling over, the risk that the sampling taper pipe is in contact with a tabletop and the ground is reduced, and liquid is prevented from being polluted.

This invention discloses a LAMP immunochromatographic reagent loading device, relating to the field of LAMP immunochromatographic reagent detection technology. It includes a sampling mechanism and a detection mechanism. A lyophilized powder storage mechanism is fitted into the bottom of the sampling mechanism, and a pipette is fitted into the bottom of the lyophilized powder storage mechanism. This LAMP immunochromatographic reagent loading device uses a modular, interlocking, and threaded connection design for the sampling mechanism, lyophilized powder storage mechanism, pipette, and detection mechanism. Each component can be quickly assembled and connected, achieving a fully integrated operation of sampling, reconstitution of lyophilized powder, LAMP isothermal amplification, and quantitative loading to the immunochromatographic reagent card. It eliminates the need for multiple sample and reagent transfers. The testing personnel only need to complete simple assembly, mixing, heating, and loading steps to complete the entire pre-detection loading operation, significantly reducing operational steps and testing time, while also lowering the professional skill requirements for operators, thus adapting to the operational needs of rapid on-site testing.

According to a first embodiment of the present invention, a dropper is provided. The dropper comprises: a pipette having a hollow cavity formed inside and an opening formed such that contents can be aspirated or discharged; a pipette piston which is inserted into the hollow cavity and forms a pipette movement space up to the opening; and a button which can compress or decompress a compression space that is in communication with the inside of the pipette, wherein the pipette piston is moved toward the opening as the compression space is compressed on the basis of the movement of the button closer to the pipette. According to a second embodiment of the present invention, a dropper is provided. The dropper comprises: a pipette having a hollow cavity formed inside and an opening formed such that contents can be aspirated or discharged; a bulb which is coupled to the pipette so that a compression space that is in communication with the hollow cavity is formed and the compression space can be compressed; and a pipette piston which is inserted into the hollow cavity and is movable in the pipette, wherein the pipette piston is moved in a direction toward the opening or away from the opening in the pipette by as much as a movement distance corresponding to a variation in the volume of the compression space, on the basis of the compression or decompression of the bulb.

The utility model discloses a sample analysis equipment, it includes object table, is used for interval to place first sample placement device and reagent providing device, first drive assembly is used for driving object table to and forth movement along first direction, pipette subassembly is used for reagent liquid in reagent providing device removal to first sample placement device obtains the sample to be tested, detection component is used for to the sample to be tested and carries out detection operation, second drive assembly is used for driving pipette subassembly removes to liquid taking position or drop liquid position along second direction. The utility model discloses by adopting first drive assembly drive first sample placement device and reagent providing device do linear motion, cooperate the independent setting second drive assembly drive pipette subassembly and / or detection component do linear motion, utilize independent setting first drive assembly and second drive assembly replaced X the structure mode of -Y axle double axle integration, effectively reduced the load weight of second drive assembly, and then improved the service life of second drive assembly.

The utility model discloses an adjustable pipette rack which comprises a base and a stand column fixedly connected with the base, the stand column is connected with a lifting column in a sliding mode, and the lifting column comprises a column body connected with the stand column in a sliding mode and a movable block located on one side of the lower portion of the column body. The lifting groove is in sliding connection with the column body, the movable groove is located on one side of the lifting groove and allows the movable block to slide in a lifting mode, the movable block is fixedly connected with an adjusting component, and the adjusting component comprises a telescopic sleeve fixedly connected with the movable block and provided with a spring on the periphery, and the other end of the telescopic sleeve is fixedly connected with a locking block. Positioning grooves matched with the locking blocks are formed in the two sides of the movable groove, the upper portion of the column body is rotationally connected with a rotating disc, a plurality of supporting arms are arranged on the periphery of the rotating disc, and fixing clamps used for hanging pipettes are arranged at the ends, away from the rotating disc, of the supporting arms. According to the utility model, the height and the angle of the pipette can be flexibly adjusted according to experimental requirements, so that the use convenience and the use efficiency of pipetting are improved, and the convenience and the efficiency of experimental operation are further improved.

A gun rack for ultraviolet disinfection of the interior of a pipettor belongs to the technical field of medical instruments and comprises a disinfection rack main body, a pipettor hanging rack, a fixing rack and an ultraviolet disinfection tank mechanism. The ultraviolet disinfection tank mechanism uses the design of an ultraviolet disinfection lamp ring and an infrared lamp ring in the ultraviolet disinfection tank mechanism to disinfect and dry a liquid outlet pipe in the ultraviolet disinfection tank mechanism, so that cross infection of samples is prevented, harmful microorganisms can be killed and prevented from being diffused into the environment, and the accuracy and reliability of experimental results are improved; the atomization disinfector disinfects and sprays the outside of the liquid outlet pipe, the disinfection and sterilization effect of the liquid outlet pipe is further improved, an infrared lamp ring and an infrared lamp tube are matched with ultraviolet disinfection equipment to heat and dry the outside of the liquid outlet pipe, and it is avoided that a corrosive disinfectant remains for a long time, and plastic, rubber and other parts of the pipettor are damaged; meanwhile, the residual disinfectant is prevented from reacting with a subsequent sample, and the test result of the product is improved.

This utility model belongs to the field of medical device technology, and particularly relates to a cytokine flow cytometry detection kit, including a reagent bottle and a storage box. The reagent bottle is snapped into a limiting tube. A partition plate is snapped into the inside of the storage box, and a bottle holder slot is opened on the partition plate. The bottom of the reagent bottle is inserted into the bottle holder slot. A limiting cardboard is movably set on the inner wall of the storage box. The bottom of the partition plate abuts against the bottom of the inner wall of the storage box, and the top abuts against the bottom of the limiting cardboard. In this utility model, the limiting tube can limit the pipette tip, preventing the pipette tip from falling into the reagent bottle during the process of using the pipette to draw liquid, which would prevent the operator from being unable to quickly remove the tip. The limiting cardboard can limit the top of the partition plate, preventing the partition plate from being pulled out with the bottle when the operator pulls the reagent bottle out of the bottle holder slot.

This utility model relates to the technical field of pipette holders, and discloses a pipette holder including a base. A rotating rod is rotatably connected to the top of the base, and a rotating handle is fixedly connected to the top of the rotating rod. A fixed plate is fixedly connected to the outer top side of the rotating rod. Multiple guide blocks are fixedly connected inside the fixed plate, and protective sleeves are fixedly connected to the bottom of each guide block. A pipette assembly is disposed inside the protective sleeve. A rotating disk is fixedly connected to the bottom of the rotating rod, and multiple slots are formed inside the rotating disk. A fixed ring is fixedly connected to the inner right side of the base, and a sliding groove is formed on the inner bottom side of the fixed ring. With this utility model, users no longer need to search among numerous pipettes; they can quickly rotate the required pipette to a convenient position, greatly saving operation time and improving experimental efficiency.

The application discloses a kind of efficient pretreatment methods for detecting element in extraction system organic phase, it includes the following steps: pipette appropriate amount of measured organic phase to volumetric flask, add appropriate amount of back extraction acid, then add water to 1 / 3-2 / 3 of volumetric flask volume, cover bottle plug; Shake the back extraction of volumetric flask, and stand and separate, then use filter paper to draw and remove upper organic phase, after removing upper organic phase, the remaining aqueous phase is filtered using filter paper and the primary filtrate is discarded, and the filtrate is the sample to be detected, for element analysis detection.The method simplifies the operation process, is simple to operate, high in detection efficiency, and is not easy to contaminate;The organic phase volume used in the pretreatment operation of the method is small, compared with the existing back extraction method of separatory funnel, the amount of organic phase used is one tenth of the back extraction method of separatory funnel, or even less, reducing the waste of organic phase, at the same time, the amount of back extraction acid is reduced, and the amount and consumption of reagent are greatly reduced.

The utility model discloses a glass pipette support, including first cylinder and second cylinder, first cylinder and second cylinder fixed mounting at the top of bottom plate, the inside vertical of second cylinder is provided with threaded rod, one end of threaded rod is rotatedly connected with the bottom of second cylinder inside through bearing seat, the other end of threaded rod penetrates the top of second cylinder and is fixedly connected with handle of rotating, the vertical of threaded rod penetrates one end of cross bar, the other end of cross bar is vertically penetrated by guide rod, the both ends of cross bar are respectively seted up and are used for with the threaded hole of threaded rod screw connection and the through -hole of being used for guide rod penetration, one end of guide rod is fixedly installed at the top of first cylinder inside, the other end of guide rod is fixedly installed at the bottom of first cylinder inside, through rotating handle, handle drives threaded rod to rotate, further drives cross bar to move up and down, realizes to the fixed pipette, and it is convenient for medical staff to store pipette.