26 results about "Liquid Specimen" patented technology

The disclosure discloses a liquid specimen lysis detection device. The device includes a detection unit, a lysis unit and a detachable limit structure, where the detection unit includes a detection shell, a sample acquisition unit and a detection reagent strip, the lysis unit includes a base, a piercing sleeve, a sealing film and a bottom bottle. The detachable limit structure is installed between the detection unit and the lysis unit to limit the depth of the detection unit inserted into the top opening of the base in the initial state, so as to prevent the piercing sleeve from piercing the sealing film. In the detection state, the detachable limit structure is removed, and the piercing sleeve pierces the sealing film under the push of the plug-in section of the detection shell; the sample acquisition unit extends into the bottom bottle.

Apparatus (2) for testing a liquid specimen, which apparatus (2) comprises: (i) a container (4) for the liquid specimen; (ii) a lid (6) for closing the container (4) after the liquid specimen has been provided in the container (4); (iii) first securing means (8) by which the lid (6) is secured to the container (4); (iv) a test capsule (10) for securing to the lid (6) when the lid (6) is on the container (4); (v) second securing means (12) by which the test capsule (10) is secured to the lid (6); and (vi) a response chart (14) which is operable in response to contact with the liquid specimen, and the apparatus (2) being such that: (vii) the lid has an openable portion (18) which when opened permits a liquid specimen in the container (4) to enter the test capsule (10); (viii) the test capsule (10) has opener means (20) for opening the openable portion on the lid (6) when the test capsule (10) is secured to the lid (6); and (ix) the response chart (14) is inside the test capsule (10) and is contacted by the liquid specimen when the liquid specimen enters the test capsule (10).

Disclosed in the present invention are a particle accommodating device, and a particle contactless processing apparatus and a light sensing structure thereof. The particle accommodating device is used for accommodating a liquid specimen that contains a plurality of particles. The accommodating device comprises a light sensing structure and a mating structure spaced apart from the light sensing structure. The light sensing structure comprises a substrate, an electrode layer and a photoelectric layer which are formed on the substrate, and an insulator formed on the photoelectric layer. The insulator comprises a charge-type track protruding from the photoelectric layer. The photoelectric layer is operable to generate a plurality of charges that are concentrated on the charge-type track, so that the charge density of the charge-type track is greater than that of the outer surface of the photoelectric layer, and thus the charge-type track can position at least one of the particles thereon by electrostatic adsorption. Thus, the particles are moved and positioned by means of the electrostatic adsorption, thereby achieving precise positioning of the particles.

This reaction device, which reduces the possibility of aerosols derived from discarded waste liquid being mixed into unused reagents, comprises a reaction chamber in which a reaction is carried out to fix a reaction product to a translucent array plate using a plate unit which comprises the array plate and an embankment portion and in which a liquid can be collected, a chemical liquid placement portion which is disposed within the reaction chamber and on which a container for storing a liquid specimen or a chemical liquid to be supplied to the array plate is placed, a liquid discarding portion which is disposed within the reaction chamber and into which the liquid that has been collected in the array plate after the liquid specimen or the chemical liquid has been supplied is discarded, and a reaction chamber evacuating portion which evacuates the atmosphere within the reaction chamber to reduce the pressure, wherein the liquid discarding portion is positioned closer to the reaction chamber evacuating portion than the chemical liquid placement portion.

A flushable apparatus (10) for testing a liquid specimen such as urine for a condition such as pregnancy. The apparatus includes a pliable sheet (11) that can be secured to the rim of a toilet bowl. The sheet is shaped and dimensioned to cause a flow of urine to impact a testing unit (30) such as a pH indicator patch, a biodegradable immunoassay, a metal organic framework composite containing assay, or a removable, non-flushable chromatographic strip, and to dram excess urine away from the testing unit. The apparatus can be disposed of in a convenient, environmentally responsible way. The testing unit can provide results in a color-coded manner that can be easier to read by inexperienced users.

The present invention is a multifunctional portable body fluid detection device, which is composed of a cover glass and a slide glass. A liquid specimen filling chamber is formed between the cover glass and the slide glass, wherein: a slidable wedge is provided between the cover glass and the slide glass. An inclined surface corresponding to the wedge surface of the wedge is provided on one of the lower surface of the cover glass and the upper surface of the slide glass; the cover glass is movable relative to the slide glass. The different corresponding positions of the wedge surface and the inclined surface enable the liquid specimen filling chamber to have an adjustable height that can adapt to the inflow of liquids with different liquid tensions. The present invention can adjust the gap between the cover glass and the slide glass to adapt to the smooth inflow of liquids with different liquid tensions between the cover glass and the slide glass. Therefore, it has the function of being applicable to a variety of liquids.

To detect a solid such as an aggregate contained in a liquid specimen with high accuracy.SOLUTION: An aggregate detecting device includes a light source configured to irradiate light to a specimen sealing tube in which a liquid specimen is sealed, a light receiving unit configured to detect polarized light transmitted through the specimen sealing tube, and a processor, wherein the processor calculates a polarization intensity value from image data of the polarized light detected by the light receiving unit, and performs peak analysis from a distribution of the polarization intensity value to determine presence or absence of a solid material.SELECTED DRAWING: Figure 4

A wastewater solid and / or liquid specimen / sample collection system provides continuous time sampling of a liquid source. The system includes an enclosure whose temperature is maintained within a temperature range for sample collection and storage. A sample collection container within the enclosure has an inlet for receiving intake liquid flow containing the sample being collected. An intake liquid conduit in fluid connection with the enclosure / container has a second end submerged into the liquid source. A pump provides an inlet connector in fluid connection with the intake liquid conduit. A controller communicatively coupled to an electrical motor of the pump transmits a pump activation signal with pump speed and length of time for sample collection, which activates the pump to initiate suction at the inlet connector. The pump suctions intake liquid at a flow rate that allows continuous sampling of the liquid source over an entirety of the length of sampling time.

One of the problems addressed by the present invention is to provide a novel method for capturing a nucleotide chain. The problem is solved by a method for capturing a nucleotide chain from a liquid specimen collected from a subject, the method comprising bringing a liquid specimen into contact with capture probe-bound cationic polymer-modified PLGA nanoparticles and recovering a nucleotide chain from the capture probe-bound cationic polymer-modified PLGA nanoparticles that have been brought into contact with the liquid specimen. The capture probe-bound cationic polymer-modified PLGA nanoparticles each include a nanoparticle core containing PLGA, a coating layer containing a cationic polymer and covering the surface of the core, and a capture probe bound to the coating layer, wherein the capture probe is an oligonucleotide.

Provided is an apparatus that integrates the collection and detection of a liquid sample. 【Solution means】The apparatus includes a rod-shaped case and a rod-shaped main body. A first liquid chamber is provided in the rod-shaped case, a sealing layer is provided at the opening of the first liquid chamber, a connection part 5 corresponding to the first liquid chamber is provided on the rod-shaped main body, a sampling head 6 is provided at the end of the connection part, and a reagent strip 4 communicating with the sampling head is provided inside the rod-shaped main body. The sampling head utilizes its capillary action to absorb the liquid specimen. The connection part corresponds to the first liquid chamber, and the sampling head that has absorbed the liquid specimen breaks through the sealing layer and is inserted into the first liquid chamber. The liquid specimen is mixed in the first liquid chamber, enters the reagent strip through the sampling head, and liquid mixing and detection are performed inside the apparatus. The operation procedure can be simplified, secondary contamination of the reagent can be prevented, and the detection accuracy can be improved.

The utility model relates to the field of medical instruments, in particular to a drainage liquid sample collecting bottle with negative pressure, which comprises a negative pressure cavity, a bottle cap and a connector, the negative pressure cavity is used for collecting drainage liquid, the bottle cap is mounted on the negative pressure cavity, the connector is penetratingly arranged in the bottle cap and comprises a clamping ring, and a drainage bag extends into the clamping ring. The problems that in the prior art, when drainage liquid is collected, enough drainage liquid cannot be collected, and related personnel are infected due to splashing of the drainage liquid are solved, the suction capacity of the drainage liquid sample collection bottle with negative pressure is improved through the negative pressure cavity, it is guaranteed that the drainage liquid cannot be splashed out to affect the external environment through the bottle cap and the connector, and the drainage liquid sample collection bottle is convenient to use. And meanwhile, the drainage liquid in the drainage liquid sample collecting bottle with negative pressure cannot be polluted by the external environment, so that the accuracy of a detection result of the drainage liquid is ensured.

The present invention provides a method for measuring the K value of fresh food, the method comprising: (a) a step for loading, onto a carrier having zirconium dioxide, an acidic liquid specimen that is prepared from fresh food and that contains ATP-related compounds, and allowing phosphate group-containing compounds in the liquid specimen to adsorb onto the carrier; (b) a step for measuring, under acidic conditions, the absorbance of a liquid phase that is collected after the step (a) at any wavelength within the range of 240 nm to 260 nm; and (c) a step for calculating the ratio of the absorbance of the liquid phase measured in the step (b) to the absorbance of the original liquid specimen at any wavelength within the range. The present invention also provides a kit and a liquid chromatograph for measuring the K value, each suitable for use in the method.

A sampling device (2220F, 2620, 2720) is provided for concentrating a liquid specimen sample (22), including a filtration assembly (2224F, 2624, 2724) which includes a tubular container (1630, 2030), a filter (60), a filter support (1662, 2362), and an inflatable chamber (2700). The filter support (1662, 2362) defines a support surface on which the filter (60) is removably disposed. The inflatable chamber (2700) includes a flexible wall (2702). An interior of the inflatable chamber (2700) is shaped so as to define a space (2733) having an initial volume. A source of gas (2204) is configured to provide gas (2208) into the space (2733). The filtration assembly (2224F, 2624, 2724) is configured such that providing of the gas (2208) into the space (2733), when the liquid specimen sample (22) is contained in the tubular container (1630, 2030) and the filter (60) is disposed on the support surface, increases the initial volume to an inflated volume, so as to push at least a portion of the liquid specimen sample (22) through the filter (60). Other embodiments are also described.

1. The name of the design product: microscope heating box. 2. The use of the design product: for drying the liquid specimen on the slide of the microscope. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best shows the design points: perspective view.

A grid for sampling liquid specimens includes a mesh having a plurality of grid bars defining a plurality of openings, and a foil coupled to the mesh. The foil includes a plurality of sections, each section aligned with one of the plurality of openings. At least one of the plurality of sections includes a first portion including a plurality of holes, and a second portion surrounding the first portion and positioned between the first portion and the plurality of grid bars. The second portion is solid.

To provide a specimen support device for a transmission electron microscope that can confine a liquid specimen in a liquid pocket highly reproducibly and reliably.SOLUTION: A specimen support device for a transmission electron microscope is configured to include: (a) a transmission electron microscope grid 10 having an observation area; (b) a support film 12 attached to the transmission electron microscope grid 10; (c) a hydrophilic bottom film 14 attached to a top of the support film 12; (d) a hydrophobic top film 16 attached to the hydrophilic bottom film 14 so as to include and cover the observation area; and (e) a liquid specimen that is encapsulated in a region formed between the hydrophilic bottom film 14 and the hydrophobic top film 16. Therein the hydrophilic bottom film 14 is graphene oxide, and the hydrophobic top film 16 is graphene.SELECTED DRAWING: Figure 1

To provide a particle accommodating device, non-contact particle processing apparatus and its light sensing structure.SOLUTION: A particle accommodating device 1 is configured to accommodate a liquid specimen including a plurality of particles therein. The accommodating device includes: a light sensing structure 11; and a mating structure 12 disposed spaced apart from the light sensing structure. The light sensing structure includes: a substrate 111; an electrode layer 112 and a photoelectric layer 113 formed on the substrate; and an insulating body 114 formed on the photoelectric layer. The insulating body includes a charge track T projecting from the photoelectric layer. The photoelectric layer is operable to generate a plurality of charges concentrated on the charge track, such that a density of the charges on the charge track is greater than a density of the charges on an outer surface of the photoelectric layer for enabling at least one of the particles to be positioned onto the charge track through electrostatic adsorption.SELECTED DRAWING: Figure 2

A particle accommodating device is configured to accommodate a liquid specimen having a plurality of particles therein. The particle accommodating device includes a light sensing structure and a mating structure spaced apart from the light sensing structure. The light sensing structure includes a substrate, an electrode layer formed on the substrate, a photoelectric layer formed on the substrate, and an insulating body that is formed on the photoelectric layer. The insulating body includes a charge track. The photoelectric layer is operable to generate charges concentrated on the charge track, such that a density of the charges concentrated on the charge track is greater than a density of the charges on an outer surface of the photoelectric layer for enabling at least one of the particles to be moved and held onto the charge track through electrostatic adsorption.

A filter support (2662) of a filtration assembly (2524) includes a rigid solid base (2664), which includes a first portion (2666), which defines filtrate -passage openings (1668) through the rigid solid base (2664) into a waste liquid receptacle (1656); and a second portion (2668), which defines a pres sure -release opening (2602) through the rigid solid base (2664) into the waste liquid receptacle (1656). A fluid-permeable layer (2604) is fixed to the rigid solid base (2664) covering the first portion (2666) without covering the second portion (2668). The fluid-permeable layer (2604) and the second portion (2668) of the rigid solid base (2664) together define a support surface (2659), on which a filter (60) is removably disposed. Pressurizing a liquid specimen sample in a tubular container (2030) at a pressure greater than a threshold pressure perforates a portion (2606) of the filter (60) covering the pressure-release opening (2602), and pushes a portion of the liquid specimen sample through the perforated portion (2606) and the pressure-release opening (2602), and into the waste liquid receptacle (1656). Other embodiments are also described.

Provided is an optical measurement device including a reaction chamber and a measurement chamber. The reaction chamber: comprises a reaction chamber placement part on which an array plate is placed, and a liquid supply part that supplies a liquid specimen or a prescribed chemical solution to the array plate; and generates a reaction product on the array plate. The measurement chamber comprises: a measurement chamber placement part on which the array plate holding the reaction product thereon is placed; and an optical measurement part that optically measures the reaction product on the array plate. The optical measurement device further includes: an inter-chamber conveyance part that conveys the array plate between the reaction chamber and the measurement chamber; and a partition member that has a passage port allowing the array plate conveyed by the inter-chamber conveyance part to pass therethrough, and that partitions off the reaction chamber and the measurement chamber.

The invention discloses a helicobacter pylori detector. The helicobacter pylori detector comprises at least one detection structure, the detection structure comprises a detection shell, an adsorption ball, an inner pipe, an outer pipe, a liquid release cavity, an extrusion part and a discharge pipe; one end of the inner tube is fixedly connected with the adsorption ball and is movably accommodated in the outer tube; the adsorption ball is used for adsorbing a liquid specimen, and the extrusion part is used for extruding liquid adsorbed by the adsorption ball; a groove matched with the extrusion part is formed in the liquid release cavity, a discharge part is arranged at the bottom of the groove, and the discharge part is communicated with the discharge pipe; one end of the discharge pipe is fixedly connected with the liquid release cavity; an insertion groove for insertion of the discharge pipe is formed in the detection shell; the insertion groove is communicated with the inclined groove; and helicobacter pylori detection test paper is arranged in the inclined groove.

For each of reagent pads and by extracting a region of a portion of an image of urine test paper captured using a camera, an image processing unit 21 generates: a first extracted image, which is an image of a region smaller than the shape of the reagent pad and does not include the outer edge of the reagent pad; and a second extracted image, which is an image of a region larger than the shape of the reagent pad and includes a region situated outside the outer edge of the reagent pad. A measurement unit 22 measures the coloration state of a urine specimen by using the first extracted image generated by the image processing unit 21. An abnormality detection unit 23 detects an abnormality of the reagent pad or an abnormality in the adhesion of the urine specimen to the reagent pad by using the second extracted image generated by the image processing unit 21.

The utility model discloses a peritoneal drainage liquid specimen collecting device, which belongs to the field of peritoneal drainage liquid specimen collecting, and comprises a collecting component and a cleaning component, the collecting component comprises a collecting bottle, the upper end of the collecting bottle is provided with a conical cover, the upper end of the conical cover is connected with a connecting nozzle, and the connecting nozzle is internally provided with a ball valve; a through hole is formed in the side surface of the ball valve, a handle is fixedly connected to the side surface of the ball valve, a water outlet is connected to the lower end of the taking bottle, a sealing plug is installed in the water outlet, scale marks are engraved on the side surface of the taking bottle, and a connecting pipe is connected to the upper end of the connecting nozzle. According to the utility model, the collecting assembly is matched with the cleaning assembly, so that other liquids such as urine can be respectively drained and collected, the sealing performance of the collecting bottle is ensured, the liquid drainage operation is carried out, the practicability of the collecting device can be further enhanced, in addition, the interior of the collecting bottle can be cleaned through the mutual matching of the structures, and the use is convenient. And therefore, the cleaning convenience of the retaining and taking device can be improved.

The application discloses a convenient opening and conducting dilution pipette, which comprises a closed air bag, an external positioning sleeve, an internal positioning tube, a liquid sampling tube and an opening and closing conducting assembly. The upper end of the internal positioning tube is provided with an opening and closing ring which can be separated upward. The opening and closing ring is driven to move upward by rotating the driving threaded column, and the lower end of the opening and closing ring is separated from the upper end of the internal positioning tube, and the lower end of the opening and closing ring is separated upward from the inner side of the annular sealing sleeve. In this way, the upper end of the internal positioning tube and the lower end of the opening and closing ring are notched, the inside of the closed air bag is conducted with the internal positioning tube, and after the liquid sample is collected through the liquid sampling tube, the closed air bag is directly squeezed, the dilution liquid in the closed air bag passes downward through the internal positioning tube and is discharged together with the liquid sample, and thus the liquid is conveniently conducted, diluted and discharged.

A drainage bag capable of quantitatively collecting liquid specimens belongs to the technical field of medical instruments, is used for collecting specimens and can quantitatively and automatically stop. According to the technical scheme, a liquid leading-in cylinder is placed in a drainage bag, the upper end of the liquid leading-in cylinder is connected with the periphery of a liquid inlet hole of the drainage bag, the lower end of the liquid leading-in cylinder is closed, small communicating holes are evenly distributed in the bottom face of the liquid leading-in cylinder, positioning scales are arranged on the outer wall of the liquid leading-in cylinder, and the lower portion of a quantitative adjusting pull tube is placed in the liquid leading-in cylinder. The upper portion of the quantitative adjusting pull tube is connected with the lower end of the drainage hose, the hollow piston is installed at the lower end of the quantitative adjusting pull tube, the outer wall of the hollow piston is in tight sliding fit with the inner hole wall of the liquid introduction cylinder, the closed floating ball is placed below the hollow piston, and the diameter of the closed floating ball is larger than that of a center through hole of the hollow piston. The quantitative liquid sample collector is simple in structure and convenient to use, liquid samples can be quantitatively collected, the work of staring and controlling the drainage amount is relieved, and the risk of excessive drainage easily caused is avoided.