B01L2300/041

Modular Active Surface Devices for Microfluidic Systems and Methods of Making Same

Modular active surface devices for micro fluidic systems and methods of making same is disclosed. In one example, the modular active surface device includes an active surface layer mounted atop an active surface substrate, a mask mounted atop the active surface layer wherein the mask defines the area, height, and volume of the reaction chamber, and a substrate mounted atop the mask wherein the substrate provides the facing surface to the active surface layer. In other examples, both facing surfaces of the reaction chamber include active surface layers. Further, the modular active surface device can include other layers, such as, but not limited to, adhesive layers, stiffening layers for facilitating handling, and peel-off sealing layers. Further, a large-scale manufacturing method is provided of mass-producing the modular active surface devices. Further, a method is provided of using a plasma bonding process to bond the active surface layer to the active surface substrate.

Lateral-flow assay device having flow constrictions

A lateral-flow assay device includes a substrate having a sample addition zone and a wash addition zone downstream thereof along a fluid flow path through which a sample flows. The fluid flow path is configured to receive a wash fluid in the wash addition zone. A hydrophilic surface is arranged in the wash addition zone. Flow constriction(s) are spaced apart from the fluid flow path and arranged to define, with the hydrophilic surface, a reservoir configured to retain the wash fluid by formation of a meniscus between the hydrophilic surface and the flow constriction(s). The fluid flow path draws the wash fluid from the reservoir by capillary pressure. Apparatus for analyzing a fluidic sample and methods of displacing a fluidic sample in a fluid flow path of an assay device are also described.

Test set for a photometric measuring device, and photometric measuring method for a sample liquid
09804095 · 2017-10-31 ·

The invention relates to a test set (1) for a photometric measuring device, comprising a mixing container (2) which has a filling opening (3) and comprising a metering container (8) which can be sealingly inserted into the filling opening (3) of the mixing container (2) and which contains a liquid reagent (13) in a closed cavity (9). The cavity (9) has a closure plunger (11), which can be moved axially in the cavity (9), at a first end of the metering container (8), said closure plunger generating a specifiable filling pressure in the reagent (13), and the metering container (8) has a closure membrane (10) at a second metering container and which can be inserted into the mixing container (2). According to the invention, the closure membrane (10) is equipped with a predetermined breaking point (20) which breaks open when the filling pressure is exceeded in a defined manner as a result of an axial movement of the closure plunger (11), said predetermined breaking point (20) of the closure membrane (10) being formed as a linearly extending material taper of the closure membrane (10), wherein the taper is arranged eccentrically in the region of an opening (24) in the base (23) of the substantially cylindrical metering container (8).

Sampling device for samples containing DNA in particular

Sampling device for samples containing DNA in particular, with a sample-collecting area provided at the free end of an elongate holding device, wherein the sample-collecting area is designed to be separable from the sampling device.

Detector and detection method

There are provided a detector and a detection method capable of detecting a biological sample with high sensitivity. A detector is provided with a microchamber array including a plurality of storage sections to be filled with a hydrophilic solvent containing a biological sample; and an image sensor in which picture elements are disposed corresponding to the storage sections, wherein the microchamber array includes a flow channel in communication with openings of the storage sections; a hydrophobic solvent supply unit arranged in continuity with the flow channel; and a through-hole which allows the hydrophilic solvent to enter and exit the flow channel, and the hydrophobic solvent supply unit flows a hydrophobic solvent into the flow channel by an externally-applied force.

Sample analyzer and reagent container

A sample analyzer comprises a reagent container setting part configured to install a reagent-container retainer for retaining a reagent container having an opening, an aspirating tube configured to aspirate a reagent in the reagent container, and an aspirating tube holder configured to hold the aspirating tube. The aspirating tube holder includes a cover, the cover having an open portion provided from a bottom face thereof to a side face thereof, the cover covering the aspirating tube with a region thereof other than the open portion. The aspirating tube holder includes a guide portion configured to guide the aspirating tube holder relative to the reagent-container retainer such that the aspirating tube holder is allowed to reach a state where the aspirating tube has entered the reagent container or a state where the aspirating tube has retreated from the reagent container.

Detection Device For A Sample Detection
20220055029 · 2022-02-24 ·

The present invention provides a detection device for sample detection, where the detection device includes a device body and a device cover, the device cover is configured to cover the device body, the device body is spirally connected to the device cover, a signal apparatus is disposed between the device body and the device cover, a completely screwed state exists between the device body and the device cover, and when the device body and the device cover are in the completely screwed state, the signal apparatus makes a sound. The detection device is provided with a two-stage sealing apparatus and the signal apparatus. As the device cover performs covering, a first sealing apparatus first seals the device body and the device cover, and the signal apparatus makes a first sound, to prompt an operator that the detection device has completed primary sealing, which is suitable for short-distance and gentle-vibration transportation after sampling is performed by using the detection device. As the device cover continues performing covering, a second sealing apparatus seals the device body and the device cover again, and the signal apparatus makes a second sound, to prompt the operator that the detection device has completed secondary sealing, and covering no longer needs to be continued.

SOLID-STATE, MULTI-WELL PLATE READER
20220362776 · 2022-11-17 ·

The present invention generally relates to a solid-state, multi-well plate reader including an emitter assembly having a plurality of emitters and a receptor assembly having a plurality of receptors, where the positions of these assemblies are not fixed relative to each other but are temporarily aligned for measurement by way of two alignment trays.

ASSEMBLIES FOR STORING SAMPLE PROCESSING CONSUMABLES, SAMPLE PROCESSING INSTRUMENTS, AND METHODS
20170297027 · 2017-10-19 ·

An assembly for storing sample processing consumables can include a cover and a tray. The cover defines a cover cavity. The tray defines a first plurality of wells. The tray includes a first portion received within the cover cavity such that a press fit is formed between a first tray surface of the first portion of the tray and a first cover surface of the cover defining the cover cavity, thereby releasably coupling the cover to the tray. Each of the first plurality of wells contains a sample processing consumable. The assembly can be used to load sample processing consumables into a sample processing instrument.

Device for separation of fluid biological material, a separating float and a kit
11666694 · 2023-06-06 · ·

The invention relates to a device for separation of fluidal biological material components, particularly separation of components of the material collected by liposuction for subsequent transfer of the adipose tissue in an injection form. The device comprises a container with an outlet duct arranged in it, the outlet duct having its upper end adapted for collecting the material, and its lower end that is in fluid communication with the inner space of the container at its bottom. Further, the invention relates to a separating float for separation of the fluidal biological material components, the float being intended to be used in the device, wherein the float comprises at least one by-pass opening for passage of the fluidal biological material contained in the container from the area below the separating float into the area above it. The invention also relates to a kit including the device and the float.