Abstract: Disclosed is a sensor assembly including a flow channel; two or more working electrodes located in the flow channel; and one or more reference electrodes located in the flow channel, wherein a total number of working electrodes is greater than a total number of reference electrodes. Volume in the flow channel may be minimized Liquid testing apparatus and methods of testing test liquids are provided, as are other aspects.

Abstract: The present disclosure describes a method in which a sample is passed through a fluid flow path of a sensor assembly such that the sample intersects at least one sensor comprising at least three electrodes arranged such that two or more electrodes are opposing and two or more electrodes are beside one another. The sensor is read by a reader monitoring changes to the sensor due to the presence of the sample. The reader measures the presence and/or concentration of one or more analytes within the sample based upon data obtained by the reader.

Abstract: In one aspect, the inventive concepts disclosed herein are directed to a sensor assembly which contains a first planar substrate and a second planar substrate which respectively support opposing sensor arrays and contains an integrated flow path extending between the first and second substrates.

Abstract: A sensor array is disclosed. The sensor array includes a fluid inlet, a fluid outlet, a flow path extending between the fluid inlet and the fluid outlet; and at least one optimization sensor positioned outside of the flow path of the sensor array and configured to provide at least one performance parameter of the sensor array. The at least one performance parameter having performance data of the sensor array.

Abstract: Disclosed herein are compositions that include oxygen, a sugar or sugar alcohol, and an amino acid, wherein the amino acid is present in an amount sufficient to stabilize the oxygen. Also provided are aqueous diagnostic quality controls or calibration reagents and methods of stabilizing oxygen in a liquid solution.

Abstract: Single-use diagnostic consumables for use in performing multiple analyses on a fluid sample are provided. The diagnostic consumables include a first sensing region configured for analysis of at least one analyte in a fluid sample that has been received by the diagnostic consumable. The diagnostic consumable further includes a fluid transport material configured to flow a portion of the fluid sample into a second sensing region fluidically connected to the fluid transport material and configured for performing a second analysis of the fluid sample. Methods for performing multiple analyses of a fluid sample on a single-use diagnostic consumable are also provided.

Abstract: A tangent flow hemolysis blood testing assembly, device and method are described herein. The presently disclosed and claimed inventive concept(s) relate to a device(s), kit(s), and method(s) for injecting a patient's liquid test sample into a reaction vessel. More specifically, the presently disclosed and claimed inventive concept(s) relate to an improved liquid test sample injection device that comprises a plug that forms an airtight seal that facilitates the active injection of a liquid test sample into a reaction vessel, and kits and methods of use related thereto.

Abstract: In the various illustrative embodiments herein, test devices are described with opposing sensor arrays and same side contacts.

Abstract: The inventive concepts disclosed herein are generally directed to the need to measure a microsample and obtain one or more measurement for one or more analyte in the microsample by configuring a sensor array having one or more first reference signal source interlaced with one or more analyte sensor positioned along the longitudinal axis the sensor body and a second reference signal source positioned downstream of the sensor body along a sample flow path.

Abstract: Disclosed is a sensor assembly including a flow channel; two or more working electrodes located in the flow channel; and one or more reference electrodes located in the flow channel, wherein a total number of working electrodes is greater than a total number of reference electrodes. Volume in the flow channel may be minimized Liquid testing apparatus and methods of testing test liquids are provided, as are other aspects.

Abstract: In the various illustrative embodiments herein, test devices are described with opposing sensor arrays, same side contacts, and an integrated heating element.

Abstract: Disclosed is a sensor assembly 100 including a sensor body having a flow channel therein configured to receive a test liquid, such as a bio-liquid, one or more moveable walls defining one or more wall portions of the flow channel, the one or more moveable walls configured to be moveable, such as to a first position, a second position, or even an intermediate position, to change a volume of the flow channel 102, and one or more sensor elements positioned in the flow channel. Volume in the flow channel may be minimized for testing neonatal specimens. Liquid testing apparatus and methods of testing test liquids are provided, as are other aspects.

Abstract: A blood testing assembly and method are described. In the method, a blood testing device having a plasma separation membrane and a reagent is connected to a syringe containing blood having blood cells and plasma. A blood sample of the blood is passed from the syringe through a plasma separation membrane within the blood testing device to separate the plasma from the blood cells. A reagent is saturated with the plasma, and then the reagent is colorimetrically analyzed to determine a degree of hemolysis within the blood sample.

Abstract: A system that include an sample analyzer having a sensor array. The sensor array includes a housing having a base, a top spaced above the base, and an outer wall that extends from the base to the top. The sensor array includes an inlet that is sized to receive a sample of the fluid, and a plurality of partitions arranged around the fluid inlet. Each partition has a port at the fluid inlet for receiving a portion of the sample of fluid received by the fluid inlet. The sensor array includes at least one sensor in each partition. The sensor array is configured to selectively direct the sample of fluid received by the fluid inlet into one or more of the plurality of partitions into contact the at least one sensor.

Abstract: Disclosed is a syringe apparatus. Syringe apparatus has a barrel including an inner surface, an open end, and an inlet end; a plunger including a plunger head received in slidable sealing contact with the inner surface of the barrel and forming a reservoir therein; and an extensible member, optionally including an additive, is contained in the reservoir. Extensible member can be coupled between the inlet end and the plunger head and is extensible in length L as a bio-liquid (e.g., whole blood) is drawn into the reservoir. Methods of mixing or adding an additive such as an anticoagulant, coagulant, or marker, to a bio-liquid are provided, as are other aspects.

Abstract: A device including a housing, a zone and a means for testing a fluid sample within the housing is disclosed. The housing is constructed of a fluid impermeable material, and defines a first fluid port, and a second fluid port. The first fluid port is configured to connect to a fluid collection device to receive a fluid sample from the fluid collection device into the housing. The second port is configured to pass the fluid sample from the housing into a testing instrument. The zone is formed in the housing. The zone is constructed of a material that allows an analysis of the fluid sample positioned within the housing, and located adjacent to the zone.

Abstract: A blood testing device for detecting hemolysis in a blood sample is described. The blood testing device comprises an housing for containing the blood sample. The housing has a treatment window and an optical zone formed therein. The blood testing device further includes an acoustic transducer positioned to selectively generate acoustic forces directed into the treatment window of the housing and a control unit for selectively actuating and deactuating the acoustic transducer to permit colorimetric analysis of plasma within the blood sample.

Abstract: Disclosed herein are compositions comprising oxygen, a sugar or sugar alcohol, and an amino acid, wherein the amino acid is present in an amount sufficient to stabilize the oxygen. Also provided are aqueous diagnostic quality controls or calibration reagents and methods of stabilizing oxygen in a liquid solution.