3697 results about "Test tube" patented technology

The invention relates to a test tube carrier (4) for transporting test tubes in a transport system, said carrier (4) comprising a base (8) having a recess made thereto for accommodating the bottom of a test tube/vial (1), and support members (9, 10) adapted to the carrier base (8) for clamping a test tube (1) inserted in said recess and supporting the same. The support members (9, 10) are permanently affixed to said carrier base (8) and comprise elongated portions with their free ends bent toward the vertical center axis of the carrier base and said upper ends providing a support surface (22) for making supportive contact to the test tube. The bottom of the carrier base recess for accommodating a test tube is advantageously made flat and the carrier base is provided with test tube support members whose support surfaces (22) extend to at least two different heights from the top level of the carrier base (8).

A specimen preprocessing/transport apparatus includes a test tube transport path on which test tubes filled with specimens are held in test tube holders and transported, a rack transport path on which sample cups are held in a sample cup rack and the rack is transported, a filled-tube loading section which loads the test tubes into the test tube transport path, a rack loading section which loads the sample cup rack into the rack transport path, an aliquoting/dispensing device which is located in the middle of the test tube transport path and configured to simultaneously aliquot the specimens in the test tubes, and simultaneously dispense the sample cups on the rack transport path, and an analyzer which is located on the downstream side of the rack transport path and configured to receive the sample cup rack stored with the specimens and analyze the specimens.

A bar code reading apparatus has a reader and a test tube handling mechanism. The reader is provided on the side of a bar code reading position set above on the way of a conveying path, and reads a bar code of a test tube. The test tube handling mechanism is placed above the bar code reading position. The test tube handling mechanism descends to grab a test tube held by a test tube holder stopped at a test tube lifting position set right below the bar code reading position, and ascends to draw out the grabbed test tube from the test tube holder. The test tube handling mechanism faces a bar code of a test tube by rotating a lifted test tube.

A automated test tube cap removal apparatus includes, a cap remover, a test tube rack which holds a plurality of capped test tubes upright in a row, a clamping mechanism which is disposed in the cap removing position and clamps the plurality of test tubes, and a cap removal unit disposed in the cap removing position and configured to move upward to remove caps from some of a plurality of test tubes and move upward to remove caps from the remaining test tubes. The cap removal unit includes engaging members which are capable of advance and retreat with respect to the caps and clamp each cap, a lift mechanism which raises the engaging members while alternately moving the engaging members upward, thereby removing the cap from each test tube, a cap guide member which separates the cap and guides the cap for dropping.

A device for measuring the sedimentation rate in biological fluids, and particularly the erythrocyte sedimentation rate in blood samples. The device comprises: holders (3) for test tubes (P) containing samples of biological fluid; agitator devices (25) for agitating the test tubes; at least one detector (17, 19) for reading the levels inside the test tubes. The holders together form a continuous flexible member (1) defining a closed path along which the agitator devices and the detector are arranged.

There is provided a carriage direction switching apparatus for a test-tube carriage path, which comprises a first carriage path including a connecting outlet, a second carriage path including a connecting inlet, a relay member interposed between the connecting outlet and the connecting inlet, and configured to guide, to the connecting inlet, an opening/closing arm opposing the connecting outlet, and a direction switching mechanism provided adjacent to the relay member. In particular, the direction switching member includes a rotary member located at a level at which the rotary member can attract the metal ring of the test-tube holder, a plurality of magnets embedded in the outer periphery of the rotary member, and a driving motor for continuously rotating the rotary member with the magnets.

The invention relates to an automatic machine designed to reseal test tubes for clinical analyses with aluminum sealing tape housed in ready-to-use, cassette-type containers. The machine uses a heat-sealing process to apply a piece of aluminum foil, which will form the cap, over the mouth of the test tube, causing it to adhere to the edge of the test tube itself to achieve perfect resealing.

The invention discloses a closed automatic detection device for blood rheology measurement, which comprises a test tube stand splint, a bar code scanner, a test tube stand moving device, an automatic blood sample transfer device of a test tube stand position monitor, a sampling measurement system comprising a sampling/measuring needle assembly, a needle insertion driving device, a quantitative sampling controller, an upper sphere, a heating module, a washing device and a work station conversion driving device, a blending device comprising an elastic clamping device, an elastic clamping device autorotation driving motor, an up-down moving device and a horizontal moving device, an air pump, a singlechip and the like. The device can ensure that the blood rheology measurement realizes the automatic transfer of a blood sample, automatic reversal of the blending device of the blood sample, automatic quantitative sampling, automatic measurement of the blood sample, automatic washing of a measurement device, and automatic recognition and recording under the condition of not opening a cover, realize the automatic measurement of blood viscosity under the full-closed state, can avoid the cross contamination, can also alleviate the labor intensity of the staff, improve measurement effect, and can also shorten measurement time.

The invention provides a sample digestion processing device, which comprises a frame, a heater and a solvent supply mechanism, wherein the heater is provided with more than one test tube accommodating hole; test tubes can be arranged in the test tube accommodating holes; the solvent supply mechanism is provided with a feeding nozzle which is arranged above the heater, can move transversely and/orlongitudinally in the horizontal plane, and is connected with a solvent storage chamber; and the heater and the solvent supply mechanism are respectively arranged on the frame; a test tube bracket isarranged on the heater; through holes corresponding to the test tube accommodating holes of the heater is formed on the test tube bracket; the heater comprises a heat-insulating tank body, and a heatconducting body arranged in the heat-insulating tank body; the test tube accommodating holes are formed on the heat conducting body; and the test tubes are arranged in the test tube bracket and the test tube accommodating holes. In the sample digestion processing device, the solvent is fed by the solvent supply mechanism, the sample is digested not by a manual wet digestion method, and the devicecan realize the quick digestion processing of quantitative solvents and samples added into the test tubes.

The invention relates to a biological agent against crucifer club root and application thereof, belonging to the technical field of bio-pesticide. The strain for production is Bacillus subtilis XF-1, whose preserving number is CGMCC NO.2357. The stain has the characteristics as follows: (1) the primary colony on the LB culture substrate is white and round having a wet surface; the later colony is light yellow having uneven edge with dry and crimple surface; observed from the microscope, the strain is short-bar shaped and movable with spore, peritricha and dimension of 0.7 - 0.8 * 2.0-2.4 mum; (2) the strain is Gram-positive and aerobic and makes use of glycogen, sugar, citrate, gelatin hydrolysate, starch and casein, but does not make use of cellulose, tyrosine and catalase positive; (3) the stain has the function of sterilization, disease prevention, and yield improvement. The embodiment of the invention is as follows: using the test tube of Bacillus subtilis XF-1 stain, shake cultivation, and culture solution for fermentation to prepare biological agent, then applying the biological agent to the rhizosphere soil of crucifer crops, thereby having good effect in preventing and treating, and simple production.

A support assembly for receiving and holding a series of test tubes is formed of a base plate receiving the bottom ends of the tubes, an intermediate frame displaying an array of openings to receive the tubes and a top frame also displaying an array of tube receiving openings in vertical registry with the array of openings of the intermediate frame. The base plate and the top frame have outwardly extending opposite ends that are adapted to snappingly engage one another together with the opposite ends of the intermediate frame. The intermediate frame and the top frame include one or more removable frame sections each having openings of a given configuration to correspond to the configuration of tubes so that the support is adaptable to receive tubes of varying configuration. Similarly, the base plate has one or more removable sections to correspond to the configuration of the bottom ends of the tubes.

Apparatus for aspirating liquid from a container, e.g., a test tube, having a puncturable stopper includes a pair of stepper motors that share a common linear actuator or drive member. One motor operates to axially advance the linear drive member (preferably a lead screw) to a position in which it serves to position a rigidly connected tube-detector/stripper member in engagement with the top of a stopper on a tube. Thereafter, the second motor operates to move along the surface of the same drive member to advance an aspiration probe through the engaged stopper and into a liquid aspirating position within the tube. Preferably, a linear guide rail, slidably-mounted on a frame that supports the liquid-aspirating apparatus, serves to guide both the movement of the aspiration probe and the linear drive member. As a result of the shared components, the apparatus is highly precise and reliable.

The present invention provides disposable, semi-reusable, or single use reaction vessels with integrated optical elements for use with diffraction based assay systems. The vessel for assaying liquids for analytes includes a housing having at least one chamber or well for receiving a liquid therein and an optical element integrally formed with the housing for directing an incident light beam towards the well or chamber and directing a light beam away from the chamber after the light beam has interacted with analytes present in the liquid. The vessel may be test tube such as a blood collection tube, with or without, an optical element but having a pattern of analyte-specific receptors located on an inner surface of the tube wall so that when a liquid is introduced into the interior of the test tube analytes present in the liquid can bind with the pattern of analyte-specific receptors.

Disclosed herein is a modular test tube rack. The rack contains multiple sub-racks that can be coupled together to form the test tube rack. The sub-rack can be designed to fit into a variety of scientific instrumentation including a fixed rotor centrifuge. The assembled test tube rack can be of a format and size that allows use of standard array pipetters. Thus, a system is provided allowing use of standard array pipetters and high g centrifugation.

The invention discloses a preparation method for a large-area single-layer or few-layer molybdenum disulfide film. The main steps of the preparation method are as follows: firstly, sulfur powder and molybdenum trioxide powder are placed in two quartz boats respectively, a substrate is placed on the quartz boat loaded with molybdenum trioxide powder, and the obverse surface faces downwards; secondly, the two quartz boats loaded with sulfur powder and molybdenum trioxide powder are placed at a bottom end and an orifice of a quartz test tube respectively; thirdly, the above quartz test tube is placed in a tubular furnace, the bottom end and the orifice of the test tube are located at the edge area and the central area of the tubular furnace respectively; fourthly, protection gas argon or nitrogen is inputted into the tubular furnace, a normal pressure is kept until the experiment is over; fifthly, the tubular furnace is heated at a certain heating speed, thus the edge area and the central area of the tubular furnace are in proper temperatures respectively, the temperatures are kept for some time, sulfur powder sublimates and reacts with gas phase molybdenum trioxide, and a large-area single-layer or few-layer molybdenum disulfide film is generated on the substrate; sixthly, the tubular furnace is cooled to the room temperature, and the preparation process is finished. The method is slightly affected by air flow, the repetition rate is high, preparation of high-quality large-area single-layer or few-layer molybdenum disulfide film can be achieved at a normal pressure.

The invention discloses an integrated device for cleaning and storing medical test tubes, which comprises a cleaning box and a storage box. There are several test tube placement holes on the placement plate. The lower end of the first rotating shaft extends into the cleaning box and is connected with an electric telescopic rod. The lower end of the electric telescopic rod is equipped with a cleaning brush. The upper end of the second rotating shaft extends into the cleaning box and is equipped Cleaning cylinder, the inside of the cleaning cylinder is provided with a brush, the upper end of the second equipment box is provided with a purification box, the left end of the purification box is provided with a fan, the middle of the storage box is provided with a rotating rod, and the left and right symmetrical support plates are arranged on the rotating rod , the opposite side of the support plate is provided with a plurality of rotating shafts on the outer periphery, and a test tube box is arranged between the two opposite rotating shafts. The invention has the advantages of simple structure, convenient use, good cleaning effect, high cleaning efficiency, convenient storage and reduced work difficulty.

An improved glass test tube is provided with a protective shield on the test tube's outer surface which protects the test tube from accidental breakage. The protective shield may be of a color which indicates that it has breakage protection. In one embodiment, the protective shield is provided by plastic material which is coated or sprayed on the outer surface of the glass test tube. In another embodiment, the protective shield is provided by one or more layers of wrapped sheet material, such as polyester film. The improved glass test tube is particularly useful in automatic analyzers that measure erythrocyte sedimentation rate.

In an embodiment of the invention, a test tube cap removing apparatus includes a fixing unit that holds a test tube having an opening portion that is closed by a cap, a hold unit that is situated above the cap in an axial direction of the test tube, has a position that is variable relative to the test tube in the axial direction, and is capable of contacting a top portion of the cap, and a clamp unit that is provided on the hold unit, supports the cap at side surfaces of the cap in a case where the hold unit is put in contact with the top portion of the cap, and removes the cap from the test tube in a case where the hold unit moves upwards relative to the test tube in the axial direction.

A reaction cuvette having anti-wicking wall fillets that inhibit liquid wicking along an interior wall surface so that the reaction cuvette may be used in a cuvette-rewashing system in an automated analyzer and not be adversely affected by any reagent contaminants remaining from assays previously performed in said reaction cuvette. The anti-wicking wall fillets comprise a curvilinear taper extending from an open top downwards into the cuvette to form a rounded concave blend between the cuvette's front and back walls and side walls.

The invention discloses a cleaning and drying device for test tubes for food detection. The cleaning and drying device comprises a base plate and a cleaning tank body. The cleaning tank body is internally provided with an upper fixing plate and a lower fixing plate. The side edge of the upper fixing plate is connected with the inner wall of the cleaning tank body in a vertically-sliding manner. The lower fixing plate is rotatably connected with the upper fixing plate. A cleaning brush is arranged on the side wall of the upper end of each rotary casing pipe. A transmission gear is arranged on the side wall of the lower end of each rotary casing pipe, wherein the transmission gears are engaged with one another. A driving vertical shaft is arranged in the center of the lower end face of a fixing transverse plate, wherein the driving vertical shaft penetrates the bottom wall of the cleaning tank body. The driving vertical shaft is connected with a cleaning motor arranged on support pillarsthrough a transmission mechanism. The top end of the driving vertical shaft is rotatably connected with the fixing transverse plate and provided with a driving gear, wherein the driving gear is engaged with the transmission gears located at the outer side. The cleaning and drying device is simple in structure; the multiple test tubes can be cleaned at the same time; and the cleaning and drying device is high in cleaning efficiency, convenient to operate and mount, good in drying effect and high in practicability.

The invention relates to a multiple-test tube stirring-rotating type method and device for photochemical reaction. The inner parts of test tubes for photochemical reaction are simultaneously stirred by magneton, the test tubes rotate around a light source and are illuminated in rotating states, the center light source surrounded by the test tubes is filtered by chemical light-filtering liquid or light-filtering sheets, the chemical light-filtering liquid is put into an outer interlayer with a double-interlayer quartz cold trap, the cooling water passes through an inner interlayer, and the light source is placed in the inner cavity of the quartz cold trap. At most 10-20 test tubes of 10-50ml can be simultaneously inserted into the device of the invention to be illuminated; the liquid for photochemical reaction in the test tubes is ventilated to participate in the reaction or is ventilated for protecting; and the invention can ensure the uniformity of the concentration of the reaction solution and the uniformity of the received illumination, can ensure the reliability and the high efficiency of the experimental result, and is especially suitable for measuring kinetic constants such as the quantum yield, the reaction rate and the like of the photochemical reaction.

The invention provides an automatic sample injector, which comprises a base turntable device, a lifting device, a needle tube clamping device, a sample injection needle and a pump. The base turntable device comprises a base, a first motor and a support disk, wherein the first motor is arranged in the base and connected with the support disk. The lifting device comprises a mounting cover, a sleeve, a second motor, a lead screw and a nut. The needle tube clamping device comprises a holder and a fastener, the sample injection needle is inserted into a clamping open groove, positioned between twoarc grooves and connected with the pump through a guide tube, and the holder is fixedly arranged on a shaft of the nut. The base turntable device can be used for bearing a test tube, and the lifting device drives the needle tube clamping device to move up and down, so that the sample injection needle on the needle tube clamping device is inserted into the corresponding test tube, the pump sucks test fluid through the sample injection needle and can directly deliver the test fluid to a chromatographic analyzer for chromatographic analysis, samples are automatically injected to the chromatographic analyzer by the aid of the automatic sample injector, and chromatographic analysis efficiency is improved.

The invention discloses a device for cleaning the inner wall of a medical test tube, comprising a device cavity, a cleaning cavity, a bevel gear A, a bevel gear B, a fixing frame, a lifting device, a cleaning brush and an air inlet. The interior of the device body is horizontally installed with a partition The baffle plate divides the inside of the device body into a device cavity and a cleaning cavity, a fixing frame is fixedly installed on the upper end of the rotating shaft B, a lifting device is installed in the device body, and several groups of cleaning brushes are fixedly installed on the lower side of the sliding plate. By setting the fixing frame, the test tube can be clamped to prevent the test tube from being thrown out due to centrifugal force during the rotation process, and at the same time, the anti-slip leather pad is added on the fixing claw to increase its friction to make the test tube more stable; Since the test tube starts to rotate by manually shaking the wheel, the cleaning brush cleans the inner wall of the test tube horizontally, and at the same time, the cleaning brush moves up and down to clean the vertical stains on the inner wall of the test tube to improve the cleaning effect.

The invention discloses a full-automatic testing tube liquid sample blending device and a hematology analyzer. The full-automatic testing tube liquid sample blending device mainly comprises an X-directional horizontal feeding mechanism, a Z-directional lifting mechanism and a Y-directional uniform mixing mechanism, wherein the X-directional horizontal feeding mechanism is used for driving a test tube to realize linear horizontal movement in an X direction; the Z-directional lifting mechanism is used for driving the test tube to realize linear lifting movement in a Z direction; the Y-directional uniform mixing mechanism is used for driving the test tube to realize rotary deflection movement in a YZ plane around an X axis; the Z-directional lifting mechanism is used for driving upper and lower dragging brackets by a motor and a synchronous belt to do Z-directional vertical lifting movement along a first linear guide rail; the Y-directional uniform mixing mechanism is driven by supporting rods in the upper and lower dragging brackets to do vertical lifting movement on a third linear guide rail; the X-directional horizontal feeding mechanism is used for driving a horizontal movement plate on a second slide block by the motor and the synchronous belt to do the linear horizontal movement on a second guide rail in the X direction; and the Y-directional uniform mixing mechanism is arranged on the horizontal movement plate. With the adoption of the full-automatic testing tube liquid sample blending device, the manufacturing precision requirements are easily reduced, and the cost is low due to few parts and a designed metal plate.

This disclosure relates to an apparatus for transporting a vessel and to a sorting apparatus. The apparatus has at least one support device adapted to support the vessel in a reclined orientation, and a pushing mechanism adapted to transport the vessel along the support device. Advantageously, the apparatus is relatively simple and does not require vessels to contact an endless conveyor. Thus, vessels can be more readily rotated, weighed, etc. This disclosure also relates to a method of sorting vessels. One application of the apparatus and method is in the sorting of test tubes containing blood samples for testing.

The invention belongs to the technical field of nondestructive detection of foundry industry, and relates to method for testing nodularity and wall thickness of centrifugal nodular cast iron tubes through ultrasonic and without deconstructions. The technological characteristics are that a certified orientation relationship between a probe and a tested tube can be guaranteed through a structural design of a sound path and a probe frame. The probe frame is motioned compositely and mutually with the tested tube, and coupling medium in a coupling medium chamber guarantees a dynamic coupling of the ultrasonic. A transmitting mode is adopted to test sound speed of ultrasonic shear waves inside a detecting tube wall, simultaneously an infrared temperature probe is used to test temperature of the detecting tube wall, after the sound speed of the ultrasonic shear waves is corrected by the temperature, the nodularity of the tube wall can be calculated out under normal temperature by the sound speed of the ultrasonic shear waves. The sound speed of the ultrasonic shear waves is transformed into longitudinal wave velocity, and a mode of ultrasonic pulse reflection is used to test the thickness of the tube wall. An effect and a benefit of the invention are that two projects can be tested in one test, influences of the thickness and the temperature to the test of the nodularity can be overcome, and a dynamic test can be used to test the whole surface of the testing tube, which increases testing efficiency and coverage rate.

The invention provides a single sample nucleic acid enclosed extractor. The single sample nucleic acid enclosed extractor comprises a cabin with safety door, the inner top surface of the cabin is provided with a magnetic bead moving mechanism, the inner bottom surface of the cabin is provided with a test tube group, an accommodating tube is processed on the test tube group, and a magnetic bar protective jacket is placed in the accommodating tube; the sidewall of the cabin is provided with a fan and a ventilation port for supplying air outside; the magnetic bar protective jacket is provided with a clamp hole; the inner top surface of the cabin is provided with a test tube cover moving mechanism, and a magnetic bar central axis in the magnetic bead moving mechanism, a test tube cover opening mechanical arm central axis in the test tube cover moving mechanism and a test tube central axis in the test tube group are in the same vertical plane. The single sample nucleic acid enclosed extractor avoids cross contamination among samples, the test tube is sequentially enclosed after each step, interference between test tubes is avoided, so that high-quality and high-purity extraction result can be obtained, and nucleic acid extraction efficiency is improved.

The invention provides an integrated pesticide residue detection pretreatment device and a pretreatment method. The device comprises a cup body, a filter, a liquid divider, a jigger, a solid phase extraction column and a test tube, wherein a crushing homogenizer is arranged in the cup body, and the bottom of the cup body is connected with the filter; the liquid divider is arranged on the bottom of the filter to be used for carrying out standing stratification on filter liquid flowing out of the filter, and the bottom of the liquid divider is connected with a three-way valve; the jigger is connected with one opening of the three-way valve to be used for quantitatively collecting a target compound, and the bottom end of the jigger is provided with a second graduating valve; the solid phase extraction column is connected on the bottom of the jigger to be used for eluting the target compound; and the test tube is used for collecting eluent and is also connected with a nitrogen flow system used for concentrating the eluent. The device and the method integrate the processes of crushing, homogenizing, ultrasonic vibrating, suction filtration, liquid-liquid extraction, solid phase extraction, concentrating constant volume and the like; the treatment method is simple and has high efficiency, and the treatment device is convenient and simple, practical and portable and can be used for on-site operation.

Solid phase materials for binding nucleic acids and methods of their use are disclosed. The materials feature a cleavable linker portion which can be cleaved to release bound nucleic acids. The solid phase materials comprise a solid support portion comprising a matrix selected from silica, glass, insoluble synthetic polymers, and insoluble polysaccharides to which is attached a nucleic acid binding portion for attracting and binding nucleic acids, the nucleic acid binding portion (NAB) being linked by a cleavable linker portion to the solid support portion. Preferred nucleic acid binding portions comprise a ternary or quaternary onium group. The materials can be in the form of microparticles, fibers, beads, membranes, test tubes or microwells and can further comprise a magnetic core portion. Methods of binding nucleic acids using the cleavable solid supports are disclosed as are their use in methods of isolating or purifying nucleic acids.

The invention discloses a portable and fast sample joint inspection device consisting of a sample suction head (1) and a test tube (2) connected with the back end of the sample suction head (1), wherein, the front end of the sample suction head (1) is provided with a tubule suction nozzle (12) provided with a suction port (13) used for sucking samples; the front end of the suction nozzle (12) can be sheathed with a rubber protecting cap (14); the cavity(17) of the suction head is respectively filled from forth to back with the sample of filter material (3) and the sample of water absorbent material (4); a fixation column of test paper (5) is arranged in the test tube (2); one to a plurality of sample test paper strips (6) are fixed on the fixation column of test paper (5); the tail end of the test tube is provided with a seal cover (7) for enclosing the tested waste in the test tube (2) without leakage. When each sample test paper strip (6) enclosed and fixed in the device goes through sample suction for once and the same background detection, a plurality of indexes of the samples can be jointly detected at the same time by naked eyes in a plurality of minutes, therefore, a plurality of sample tests become simpler, safer and faster, and can avoid cross interference. The tested waste remains sealed in the test tube to be more beneficial to avoiding pathogen spreading and iatrogenic infection as well as treating waste materials in an environment protection way.