48 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.

A grid for sampling a liquid specimen. The grid includes a mesh and a foil. The mesh includes a plurality of grid bars defining a plurality of openings. The plurality of grid bars forms an outer perimeter of each opening. The foil is coupled to the mesh and the foil includes a plurality of holes. A subset of the plurality of holes is aligned with each of the plurality of openings. Each hole of the subset is spaced from the outer perimeter of the corresponding opening defined by the plurality of grid bars.

A grid for sampling a liquid specimen. The grid includes a mesh and a foil. The mesh includes a plurality of grid bars defining a plurality of openings. The plurality of grid bars forms an outer perimeter of each opening. The foil is coupled to the mesh and the foil includes a plurality of holes. A subset of the plurality of holes is aligned with each of the plurality of openings. Each hole of the subset is spaced from the outer perimeter of the corresponding opening defined by the plurality of grid bars.

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.

A grid for sampling a liquid specimen includes a first layer and a backing material supporting the first layer. The first layer includes a plurality of lanes, each lane having a first end configured to receive a droplet of the liquid specimen, a second end opposite the first end, and a length extending from the first end to the second end.

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 filtration assembly is provided that includes a tubular container shaped so as to define a proximal container opening for receiving a liquid specimen sample. A plunger includes a plunger head and a plunger rod, and is insertable into the tubular container via the proximal container opening. A filter support is shaped so as to define a support surface on which a filter is removably disposed, and a plurality of filtrate-passage openings through the filter support into a waste liquid receptacle. The filtration assembly is configured such that provision of gas from a source of gas, when the liquid specimen sample is contained in the tubular container and the filter is disposed on the support surface, pushes at least a portion of the liquid specimen sample through the filter and the filtrate-passage openings and into the waste liquid receptacle. Other embodiments are also described.

A pipette comprises a housing extending from a lower end to an upper end and a neck extending from the lower end of the housing and configured to hold a pipette tip. A stroke rod comprising an upper end and a lower end is configured to displace a tip plunger in the pipette tip. A drive apparatus is configured to displace the stroke rod to: (1) aspirate a liquid specimen into the pipette tip held on the neck; and (2) to eject the specimen from the pipette tip by means of a tip plunger positively connected to the stroke rod. At least one locking sleeve is arranged coaxially with the stroke rod and configured to be displaceably guided toward the stroke rod in the housing The locking sleeve is configured to inhibit release of a tip plunger from the stroke rod.

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.

The utility model provides a detection device capable of simultaneously detecting various types of body fluid specimens of a human body, which relates to the technical field of medical detection and comprises a box body, a shell is arranged at the central position of the box body, a mass spectrometer is mounted on one side of the shell, a movable cavity is formed in the shell, a sample plate is arranged in the movable cavity and movably connected with the shell, and the mass spectrometer is mounted on one side of the shell. A turnover cover is hinged to the top surface of the shell, reagent boxes are arranged on the other side of the shell, hoses are connected to interfaces of the reagent boxes and the mass spectrometer, an electric push rod is arranged in the movable cavity, a rotating plate is connected to the bottom of the electric push rod, and a corresponding liquid sample on the sample disc can be rotated to a specified position in a mode that the sample disc ascends, descends and is matched with rotation. Specific reagents are added to different liquid samples according to detected items, finally, the sample disc continuously rotates, the samples and the reagents can be repeatedly mixed and wait for being extracted and detected, manual pretreatment of the samples is not needed, manual operation is facilitated, and automatic extraction and detection are achieved.

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.

A grid for sampling a liquid specimen includes a first layer and a backing material supporting the first layer. The first layer includes a plurality of lanes, each lane having a first end configured to receive a droplet of the liquid specimen, a second end opposite the first end, and a length extending from the first end to the second end.

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.

In various aspects, integrated specimen collection and analyte extraction devices are provided herein. For example, in accordance with various aspects of the present teachings. a device for extracting analytes from a specimen is provided, the device comprising a housing (12) defining an extraction chamber (14) for containing a known volume of a liquid specimen and having an inlet (16) for receiving the liquid specimen. A stationary phase (20) is configured to be disposed within the extraction chamber (14) in contact with the liquid sample so as to adsorb one or more analyte species thereto, wherein at least one of the stationary phase (20) and the one or more analytes adsorbed thereto within the extraction chamber (14) is removable from the extraction chamber (14) for analysis by a chemical analyzer.

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.

The utility model discloses a tumor postoperation specimen retaining bag, which relates to the technical field of retaining bags, and comprises a bag body, the inside of the bag body is divided into two parts, namely a liquid retaining part and a solid retaining part, the top of the bag body is provided with pressing teeth, and the top of the pressing teeth is also provided with a sealing part; the liquid retaining part is a liquid retaining tube, and the solid retaining part is a plurality of retaining bags capable of moving up and down in the bag body. According to the specimen storage bag, the liquid storage tube and the solid storage bag are respectively arranged in the bag body, so that the whole bag body can be used for storing liquid specimens and solid specimens, and the storage effect is improved; a sealing part is further arranged outside the pressing teeth of the bag body, the bag body is closed and sealed through the pressing teeth firstly, then secondary closing and sealing are completed through the sealing part, the sealing performance of the whole preservation bag is improved, and the preservation time of internal specimens is prolonged.

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

A method for preparing a syringe containing a sample of whole blood for centrifuging comprising: providing a syringe having a barrel with a flange at a proximal end thereof and a tip at a distal end thereof, the tip having a lumen in fluid communication with the barrel, the barrel of the syringe containing a liquid specimen, the syringe having a plunger provided in the barrel and sealing the liquid specimen therein; providing a jig for supporting the proximal and distal ends of the syringe, the jig having a blade pivotably mounted therein, the blade having an open position in which the blade is retracted to permit insertion of the syringe, the blade having a cut position in which the blade cuts the syringe; pivoting the blade into the cut position such that the blade cuts the proximal end of the syringe with the flanges and the plunger.

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.