摘要:
A microfluidic element for analyzing a bodily fluid sample for an analyte contained therein is provided, the element having a substrate, a channel structure that is enclosed by the substrate, and a cover layer, and is rotatable around a rotational axis. The channel structure of the microfluidic element includes a feed channel having a feed opening, a ventilation channel having a ventilation opening, and at least two reagent chambers. The reagent chambers are connected to one another via two connection channels in such a manner that a fluid exchange is possible between the reagent chambers, one of the reagent chambers having an inlet opening, which has a fluid connection to the feed channel, so that a liquid sample can flow into the rotational-axis-distal reagent chamber. At least one of the reagent chambers contains a reagent, which reacts with the liquid sample.
摘要:
A device for sampling, transporting and/or disposal of fluid media in the nl and μl-range comprises a substrate with and open or closed capillary-like groove or channel respectively, the substrate with the open or closed groove or capillary respectively is bent or arcuated at least at one location. The substrate comprises at least one end into which the open closed capillary-like groove or channel respectively is extended, which end is shaped according to its application or use as e.g. needle-like, straight-lined cut, tip-like, at least most half circle-shape, rounded, etc.
摘要:
A micro fluidic device comprises a laminate structure, comprising a plurality of individual layers. At least one layer comprises a micro fluidic channel structure and at least on one side of said layer a further layer is arranged comprising a three-dimensional (3D) micro structure such that the 3D micro structure is influencing a flow characteristic of a fluid within the micro fluidic channel structure.
摘要:
The invention relates to the technical field of microfluidic channel structures. The invention discloses a microfluidic channel system with a high aspect ratio as well as a process for producing the microfluidic system. The process according to the invention enables the production of channel structures with aspect ratios of any magnitude without the process being limited by the manufacturing conditions to certain materials for the channel system. The channel system can thus be optimally adapted to a desired field of application.
摘要:
A microfluidic device is provided including at least one chamber accessible by microfluidic channels characterized in that the surface of the channels and the chambers are patterned and comprise hydrophilic and hydrophobic areas. The surface energy in correspondence of the areas, i.e., the capillary force, being such that a liquid can be guided along the hydrophilic path, enter the chamber from one side, wet part of one surface of the chamber as a thin layer without touching the opposite surface of the chamber, thus avoiding to fill the volume inside the chamber in correspondence of the hydrophilic pattern until a second liquid, either sequentially or in parallel, comes to wet part of the opposite surface of the chamber and eventually touches the first liquid layer, resulting in a sudden coalescence and efficient mixing between the liquids.
摘要:
A system is provided for withdrawing small amounts of body fluid from an animal or human. The system includes a holder and a disposable lancing unit attached to the holder. The lancing unit also includes an open capillary channel for transporting the body fluid and piercing the skin.
摘要:
A system is provided for withdrawing small amounts of body fluid from an animal or human. The system includes a holder and a disposable lancing unit attached to the holder. The lancing unit also includes an open capillary channel for transporting the body fluid and piercing the skin.
摘要:
A micro fluidic device comprises a laminate structure, comprising a plurality of individual layers. At least one layer comprises a micro fluidic channel structure and at least on one side of said layer a further layer is arranged comprising a three-dimensional (3D) micro structure such that the 3D micro structure is influencing a flow characteristic of a fluid within the micro fluidic channel structure.
摘要:
A system is provided for withdrawing small amounts of body fluid from an animal or human. The system includes a holder and a disposable lancing unit attached to the holder. The lancing unit also includes an open capillary channel for transporting the body fluid and piercing the skin.
摘要:
The invention relates to a method and an apparatus for analyzing a dry-chemical test element, in particular an immunological test element, wherein, in the method, a dry-chemical test element is analyzed by optical scanning, whereby measurement light beams leaving assay regions of the test element, which are loaded with one or more immobilized optically active substances, with a respective measurement light intensity are detected by a detector device. The method comprises the following steps: during the optical scanning of a first assay region, from which the measurement light beams leave with a first measurement light intensity, a first quantity of light from measurement light beams which impinges on the detector device and a working range of the detector device are adapted to one another by selecting scanning parameters according to a first set of scanning parameters, and during the optical scanning of a second assay region, from which the measurement light beams leave with a second measurement light intensity which differs from the first measurement light intensity, a second quantity of light from measurement light beams which impinges on the detector device and the working range of the detector device are adapted to one another by selecting scanning parameters according to a second set of scanning parameters which differs from the first set of scanning parameters.