Patent classifications
G01N2035/0436
CONTROLLED BLOOD DELIVERY TO MIXING CHAMBER OF A BLOOD TESTING CARTRIDGE
Embodiments of a blood coagulation testing system can operate as an automated thromboelastometry system that is particularly useful, for example, at a point-of-care site. In some embodiments, the blood coagulation testing system includes a single-use cartridge component configured to measure and mix reagents with blood received from a blood sample reservoir. A mixing chamber in the single-use cartridge includes different reagent beads that, when exposed to a pre-determined volume of blood, dissolve and mix specific reagents with the blood. The assembled blood cartridge further includes configurations that are designed to prevent blood from prematurely mixing with reagent beads in the mixing chamber and to guide blood flow in the mixing chamber to dissolve reagent beads in a desired order. Thus, the mixture obtained from the mixing chamber can be readily utilized to generate results for the blood coagulation testing system.
METHOD FOR RECONSTITUTING A REAGENT
A method for reconstituting a reagent within a reagent pack including one or more wells and at least one of the wells containing a lyophilized reagent comprises the steps of receiving reagent packs into a reagent pack input carousel, transferring one reagent pack with a rotary distributor from the input carousel to a reagent pack storage carousel, retrieving the reagent pack from the storage carousel with the rotary distributor and placing the reagent pack into a reagent pack loading station, and dispensing a reconstitution reagent with an automated pipettor into the well containing the lyophilized reagent to form a reconstituted reagent.
Controlled blood delivery to mixing chamber of a blood testing cartridge
Embodiments of a blood coagulation testing system can operate as an automated thromboelastometry system that is particularly useful, for example, at a point-of-care site. In some embodiments, the blood coagulation testing system includes a single-use cartridge component configured to measure and mix reagents with blood received from a blood sample reservoir. A mixing chamber in the single-use cartridge includes different reagent beads that, when exposed to a pre-determined volume of blood, dissolve and mix specific reagents with the blood. The assembled blood cartridge further includes configurations that are designed to prevent blood from prematurely mixing with reagent beads in the mixing chamber and to guide blood flow in the mixing chamber to dissolve reagent beads in a desired order. Thus, the mixture obtained from the mixing chamber can be readily utilized to generate results for the blood coagulation testing system.
AUTOMATED PIPETTING APPARATUS HAVING A COMBINED LIQUID PUMP AND PIPETTE HEAD SYSTEM
The technology described herein generally relates to systems for extracting polynucleotides from multiple samples, particularly from biological samples, and additionally to systems that subsequently amplify and detect the extracted polynucleotides. The technology more particularly relates to microfluidic systems that carry out PCR on multiple samples of nucleotides of interest within microfluidic channels, and detect those nucleotides. The technology still more particularly relates to automated devices for carrying out pipetting operations, particularly on samples in parallel, consistent with sample preparation and delivery of PCR-ready nucleotide extracts to a cartridge wherein PCR is run.
SYSTEM AND METHOD FOR CONDUCTING AN ASSAY
An automated method for analyzing a plurality of samples within a housing of a self-contained system. The system is loaded with a plurality of samples, after which a first assay is performed on a first sample subset and a second assay performed on a second sample subset. The two assays include exposing the samples to a target capture reagent having a solid support for directly or indirectly immobilizing a target nucleic acid that may be present in one or more of the samples. The two assays may be performed with the same or different target capture reagents and target nucleic acids, but the receptacles for performing the exposing step have substantially identical geometries. Following the exposing step, an amplification reaction for amplifying a region of the target nucleic acid is performed with each sample. The amplification reactions of the two assays are performed in receptacles having different geometries.
PROBES FOR BIOCHEMICAL TESTS
This invention relates to an apparatus for conducting immunoassay test. The apparatus includes a groove unit having a groove along a vertical direction configured to hold a rod-shaped portion of a probe along the vertical direction, and a push pin configured to move along a horizontal direction, the push pin being capable of residing at a first position and a second position. A tip of the push pin is capable of pressing the rod-shaped portion of the probe against the groove when the push pin resides at the first position. The distance between the tip of the push pin and the groove is larger than a diameter of the rod-shaped portion of the probe when the push pin resides at the second position.
Methods for the selective uncapping of gel cards
The invention relates to a station for uncovering a receptacle comprising a body in which a plurality of adjacent holes, initially sealed by a cover, are formed. The station comprises at least one cutting member for making at least one cut in the cover between two adjacent holes, so as to form at least one cover portion closing off at least one of the holes of the receptacle, i.e., the selected hole; and at least one heating gripping device which is arranged so as to heat and remove said cover portion, thereby opening the selected hole.
Biological sample processing
Systems and methods are provided for processing a biological sample. In one embodiment, the method comprises receiving a sample vessel containing the sample; retrieving information from an information storage unit associated with the sample; using said information for selecting at least one cartridge from at least two or more different cartridges, each configured for use with a sample processing device; loading at least one or more reagents onto the cartridge, wherein the one or more reagents to be added are selected based at least in part on the information or instructions derived from the information; and placing the sample vessel in the cartridge.
EXTRACTION SYSTEM AND METHOD FOR EXTRACTING MICROORGANISMS CONTAINED IN A SAMPLE
An extraction system includes a support bar including a sample well, a reagent well, at least one washing well, and at least one protection and retention housing; a pipetting element removably mounted on the support bar and extending at least partially into the at least one protection and retention housing; and a filtering and transfer device configured to capture and accumulate microorganisms contained in the sample and transfer the captured and accumulated microorganisms, the filtering and transfer device being removably mounted on the support bar and extending at least partially into the at least one protection and retention housing. The filtering and transfer device includes a hollow body having an elongated shape and including a proximal end portion and a distal end portion; and a filtering element fixed to the distal end portion of the hollow body.
SAMPLE PREPARATION SYSTEM AND CARTRIDGE
A sample preparation cartridge for use with a sample preparation device, the cartridge includes a housing defining plural separate segments, at least one of said segments comprising a fixed section of a pipette component; and a moveable head comprising a pipette tip, the head being configured, in use, to be moved between a position in which the pipette tip is in sealed engagement with the fixed section of pipette component and a position in which pipette tip is positioned adjacent to another of said plural segments. With the present invention a disposable sample preparation cartridge and corresponding analytical reader can be provided in a very cost effective and simple manner whilst still ensuring high quality sample preparation for analysis.