7544 results about "Test tube" patented technology

A system and method operative in accordance with the present disclosure facilitate storage and retrieval of individual or discrete samples of biological, non-biological, and chemical material stored on dry media. Sample material may be disposed upon or within a porous or solid (i.e., non-porous) sample storage medium and subsequently archived in, and retrieved from, storage elements such as multi-well plates, for example, using robotic devices or other automated apparatus. The disclosed system and method enable ejection of sample material from a sealed storage element into a specific well of a multi-well daughter plate, or into a specific cuvette, test tube, or similar container. In some embodiments, a sample carrier comprising a storage medium may be punched or ejected through a first seal of the storage element with an apparatus or implement such as a disposable piercing tip, for instance, inserted through a second seal of the storage element.

A modular test tube rack for assembly with similarly constructed racks comprise a flat rectangular body displaying, in a first position, a series of wells extending from its top wall to its bottom wall and adapt to receive tubes therein. A pair of handles vertically extend at opposite end walls of the body, each handle having a lower portion adapted to tightly engage an extension on each end wall and a hand gripping upper portion. The lower portion has a bottom edge configured to anchor with the top edge of the handle of an underposed similarly constructed rack to thereby enable a stacking of two more of these racks. In one embodiment, the body displays a second series of wells extending from the bottom wall to the top wall whereby the body, when in a second position reversed relative to the first position, may also receive test tubes, the handles being reversably mountable to the end wall extension to still enable a stacking of racks in the second position.

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 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 test tube rack for supporting, storing and carrying a plurality of test tubes in a laboratory environment comprising a tray, a central support panel and / or lower support panel and a cover. The tray and cover are identical and interchangeable, and tapered for storage in nested stacks. Wells in the tray bottom are in alignment with corresponding openings in the central support panel and corresponding holes in the lower support panel and with domes in the cover, and serve to locate and retain test tubes within the test tube rack. The cover snap-attaches to the tray by means of at least one molded-in tab on the tray or cover which is received and frictionally retained by a corresponding well on the opposite element, thereby locating and securing the cover to the tray, and also locating and securing the central support panel between the tray and the cover. A dual-purpose support panel has manually removable perforated edges allowing it to serve either as a central support panel or, with the perforated edges removed, as a lower support panel. The test tube rack is preferably made of transparent injection-molded or thermoformed plastic.

A system for identifying test tube types and properties in a sample handling machine using visual information automatically obtained by an optical imager and then processed using vision processing methods. The system includes an optical imager positioned to capture images containing one or more test tubes in a rack and a microcontroller programmed to extract predetermined regions of interest and interpret the optical information in the image to decipher the dimension of the test tubes, determine the presence or absence of caps on the test tubes, decode any encoded data, and interpret custom symbologies. The system may then determine the nature of the test tubes or other containers presented before the image and provide that information to the sample handling machine to assist with processing of samples.

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.

Blood collecting devices for collecting blood from a patient using a single needle insertion are disclosed. Each blood collecting device typically includes a housing which is removably attached to a test tube or blood reservoir. A blood flow tube is disposed in fluid communication with the housing for distributing blood from a patient into the test tube or blood reservoir. The blood is distributed through a membrane cavity having a liquid-impervious and air-permeable membrane. At least one air opening is provided in the housing at the membrane cavity. Accordingly, air in the test tube or blood reservoir is displaced by the incoming blood through the membrane cavity and membrane and out the air opening or openings. Vacuum pressure in the test tube or blood reservoir is dispelled by the flow of air through the air opening or openings, membrane cavity and membrane and into the test tube or blood reservoir, respectively.

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 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 sending mode and the sending device automatically for the blood cell analysis instrument are to convert the tube to send the sample. The auto sending sample device includes the tube pushing device, the mixing device, the scan device and puncturing device. The tube pushing device is connected to the mixing device, the scan device and puncturing device. It will combine the mixing equip and scan device into one mixing scan device. The invention makes tube blood mix under the situation that the tube doesn't escape from a tube, and have good mixing efficient. But the blood collecting can be completed under the situation that the tube doesn't escape from a work. So it makes the puncturing sample more convenient and simple. It can further shorten the blood sample entering time, have operation more simple, the equipments are more cleverly made and the manufacturing cost is cheaper and higher automation degree.

A test tube holder includes a test tube insertion adapter having an adapter body and an elastic annular band and projections. The adapter body includes a flange section, an annular section, a plurality of flat spring sections whose proximal end portions are connected to the annular section and whose distal end portions extend inward in the cylindrical hollow and bent toward the axis of the adapter body and contact sections which are formed on the inner surfaces of the flat spring sections. The elastic annular band designed to bind the flat spring sections together while surrounding the outer surfaces thereof over a given range in order to bring the contact sections into contact with the outer surfaces of the test tubes. The projections projected from the outer surfaces of the flat spring sections to hold the elastic annular band in a given position.

The invention relates to a method for preparing lyophobic SiO2 aerogel, belonging to the technical field of new material preparation. The method comprises the steps: tetraethyl orthosilicate, absolute ethyl alcohol and oxalic acid solution are firstly mixed in a container for sealing, and then the mixed solution is put into water bath, hydrolyzed under agitation and added with ammonia dropwise; when gel is formed, the absolute ethyl alcohol is added into the gel for exchanging the water in the gel; n-hexane is used for exchanging ethanol in the gel; wet gel which is processed by solvent exchange and aging is dipped into the mixed solution of modifying agent and n-hexane for surface modification, then the n-hexane is added for exchanging the unreacted modifying agent; finally, a test tube is sealed by a aluminum foil provided with a needle hole and is placed into an oven for classified drying under normal pressure, so that the modified SiO2 aerogel is obtained. The SiO2 aerogel prepared by the method has the advantages of high porosity, large specific surface area, good hydrophobic property, etc. The method has the advantages of mild reaction condition, easy control of the reaction as well as simple and convenient process flow.

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.

Some embodiments include a valve positioned within a test tube to maintain a separation between components of liquid with different densities after centrifugation. The valve preferably includes a cylindrically shaped housing with a conical plug configured to nest within the housing. The plug is not in contact with the housing during centrifugation, but comes into position post-centrifugation.

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.

A test tube rack for supporting, storing and carrying a plurality of test tubes in a laboratory environment comprising a tray, a central support panel and / or lower support panel and a cover. The tray and cover are identical and interchangeable, and tapered for storage in nested stacks. Wells in the tray bottom are in alignment with corresponding openings in the central support panel and corresponding holes in the lower support panel and with domes in the cover, and serve to locate and retain test tubes within the test tube rack. The cover snap-attaches to the tray with at least one molded-in tab on the tray or cover which is received and frictionally retained by a corresponding well on the opposite element, thereby locating and securing the cover to the tray, and also locating and securing the central support panel between the tray and the cover. A dual-purpose support panel has manually removable perforated edges allowing it to serve either as a central support panel or, with the perforated edges removed, as a lower support panel. The test tube rack is preferably made of transparent injection-molded or thermoformed plastic.

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.

A system and a method of the interaction and preservation of two or more reagents used in a chemical reaction is described, in which the reagents are put in contact one with another only when a wad (A) carrying a sample to be treated with said reagents breaks a partition barrier (4, 14) placed between two containers belonging to a device comprising a first upper container (2, 12) and a second lower container (3, 13) of a test tube (1), the bottom wall of the first container (2, 12) forming said partition barrier (4, 14) able to be perforated by the wad (A) carrying the sample to be treated.

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.

An apparatus and related method for optical calibration of spectrophotometers is described. The apparatus is a calibration plate including one or more cuvettes filled with solutions of interest. The cuvettes are sealed to prevent evaporation. The cuvettes also possess a compressible component to allow for expansion of the solution and a bubble control apparatus to ensure that the compressible component does not intersect the beam path. A piece of neutral density glass is optionally included in the apparatus to track optical changes of the solutions over time.

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.

A test tube holder includes a main body and an adapter. The main body includes a cylindrical hollow portion for accommodating a test tube. The adapter is provided in the cylindrical hollow portion to hold the test tube. The adapter includes bottom portions, holding portions and loop portions, which are U-shaped as a whole. The bottom portions are located to cross the center axis of the cylindrical hollow portion. The loop portions are provided at the ends of the bottom portions, and coiled at least one. The holding portions are continuous with the loop portions and the bottom portions. The bottom portions of first and second spring steel wires are provided in the cylindrical hollow portion to intersect with each other. The holding portions of the first and second spring steel wires are projected upwards from the cylindrical hollow portion.

The invention relates to the technical field of medical inspection equipment, and specifically discloses a full-automatic immediate check meter. The full-automatic immediate check meter comprises a shell, a frame body, a sample frame, a sample input device, a shaking device, a detecting clamping storage place, a sample reaction device, a detecting clamping transporter, a detecting device and a control panel, wherein the sample input device, the shaking device, the detecting clamping storage place, the sample reaction device, the detecting clamping transporter and the detecting device are all arranged on the frame body; the sample frame is arranged in the sample input device and is provided with a sample test tube, and the shaking device is arranged on the rear of the sample input device; the sample reaction device, the detecting clamping transporter and the detecting device are arranged on the rear of the shaking device. The full-automatic immediate check meter provided by the invention has the advantages that the structure is simple, the integration and automation degrees are high, and the non-stop loading is supported.

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.