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7632460 |
Test kits and devices
A test kit for determining the presence of one or more analytes in a fluid sample, including an assay device together with a reading device which engages with the assay device and wherein precisely...
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7632687 |
Hybrid phase lateral flow assay
The invention relates to devices for performing single step assays for the determination of the presence or absence of an analyte in a liquid sample, and methods of determining the presence or...
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7629175 |
Test element with a one layer reaction film
The invention concerns test elements and methods for the optical detection of an analyte in a sample. The test element includes a support having at least one transparent portion, and a one-layer...
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7629180 |
Test kit for the rapid detection and localization of digestive tract bleeding in equines
A diagnostic and testing apparatus and related methods for the use of the same are disclosed which derive and use antibodies to equine albumin and equine hemoglobin in testing apparatus, kits, and...
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7625763 |
Rapid diagnostic test systems and methods
A rapid diagnostic test system includes a lateral-flow strip for performing a binding assay. The lateral-flow strip contains a binding agent having a deposition density that varies periodically...
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7622729 |
Diagnostic test device including photodetector for scanning detection region
A diagnostic test device comprises means for sampling a liquid biological sample. Means is provided for reacting the sample with a reagent to provide one or more visible indicia. A photodetector...
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7618827 |
Thyroid hormone analysis by mass spectrometry
Methods, systems and kits for the simultaneous or sequential analysis of one or more hormones by mass spectrometry are disclosed. The methods require minimal sample size and minimal preparation...
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7615376 |
Masking background fluorescence and luminescence in the optical analysis of biomedical assays
In a process for the quantitative optical analysis of fluorescently labelled biological cells 5 , a cell layer on a transparent support at the bottom 2 of a reaction vessel 1 is in contact...
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7605004 |
Test strip for a lateral flow assay for a sample containing whole cells
A test strip for conducting a lateral flow assay for detection of an analyte in a sample that contains cells and fluid is provided, as well as methods for making and using the test strip. This test...
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7604997 |
Wipes and methods for removal of metal contamination from surfaces
Wipes, methods and kits useful for testing and/or removal of metal from surfaces (such as, dermal surfaces) are disclosed. Exemplar wipes, including the combination of a three-dimensionally...
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7601544 |
Method and apparatus for using infrared readings to detect misidentification of a diagnostic test strip in a reflectance spectrometer
A method and apparatus for using an infrared reading to detect the misidentification of a diagnostic test strip disposed on a feed table comprising the steps of determining if the test strip...
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7592181 |
Occult blood testing device
A self-contained system for testing for the presence of occult blood in a specimen has been provided. The system includes a housing holding a test element and a container for releasing a developing...
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7592184 |
Ammonia detection and measurement device
There is disclosed an apparatus and method for detecting and measuring volatile acidic or basic components including ammonia, ammonium, or volatile amines (compound) in a gas or liquid state fluid....
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7585680 |
Method and device for monitoring medication usage
The present invention provides methods for detecting and quantifying metabolites in a biological sample by measuring the concentration of a test metabolite in the sample and comparing that...
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7582484 |
High-density lipoprotein assay device and method
An assay device and method for measuring the concentration of HDL-associated cholesterol in a blood-fluid sample are described. The assay design is such that removal of non-HDL lipoproteins from a...
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7575915 |
Biosensor
A biosensor is provided with a development layer for developing an inspection target solution, that has a reagent immobilization part where an antibody for a measurement target in the inspection...
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7560272 |
Specimen collection and assay container
The present invention includes but is not limited to a specimen collection device that includes a chamber capable of collecting a specimen, a specimen passage slot, a reservoir, a reservoir seal,...
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7560289 |
Methods of quantitatively measuring biomolecules
The present invention is directed to methods for quantitatively measuring biomolecules by using magnetic nanoparticles. Through the use of the magnetic nanoparticles and the bioprobes coated to the...
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7556769 |
Fecal occult test packaging
A specimen testing device having a folding top having a top inside and a top outside; a back portion having at least one flap opening, the back portion in folding communication with the folding...
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7553675 |
Diagnostic assay device having an apparent non-signal line
A test device and method for determining the presence or absence of one or more analytes in a fluid sample, the test device including a support or member bearing a mark thereon, and a matrix or...
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7550112 |
Sample collection cup with integrated activatable sample analysis system
Medical and environmental diagnostic devices are described and claimed. Preferred embodiments feature cup within cup configurations wherein one cup is dedicated, for the most part, to sample...
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7549323 |
Diagnostic test strip for collecting and detecting an analyte in a fluid sample and method for using the same
A system and method for determining the concentration of an analyte in a fluid sample includes a test strip having a first and second portion separated by a bend line formed in the base. The bend...
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7544517 |
Stabilized reagent, apparatus and method for measuring cyanuric acid
Reagents for determining presence or concentration of cyanuric acid are described. The reagents include an indicator, a 2,4-diamino-6-alkyl-1,3,5-triazine, caffeine, which acts as a stabilizer, and...
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7537937 |
Lateral flow assay device
A test device and method for determining the presence or absence of an analyte in a fluid sample, the test device including a support bearing a mark thereon, and a matrix defining an axial flow...
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7534395 |
Hysteresis compensation system
A system and method for compensating for hysteresis in laboratory liquid handling apparatus. The system comprises a carriage holding a drive gear that meshes with and drives a gear rack. A...
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7531362 |
Rapid diagnostic assay
An improved rapid diagnostic device, assay and multifunctional buffer reagent are provided for the detection of a target analyte in a fluid test sample. The 2-step assay utilizes a dual component...
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7521259 |
Assay test strips with multiple labels and reading same
In one aspect, an assay test strip includes a test label that specifically binds a target analyte and a control label that is free of any specific binding affinity for the target analyte and has a...
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7521260 |
Assay test strips and reading same
An assay test strip includes a flow path, a sample receiving zone, a label, a detection zone that includes a region of interest, and at least one position marker. The at least one position marker...
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7517691 |
Device for and method of testing occult blood in feces
The presence of occult blood in feces is detected using device including a liquid tight packet containing a sheet of absorbent material impregnated with a liquid solution that reacts with feces to...
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7517693 |
Method and apparatus for determining a molecular descriptor of absorption for a candidate compound
A method of determining a molecular descriptor of absorption for a candidate compound is disclosed. The method includes: providing a test solution comprising one or more candidate compounds;...
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7507469 |
Multi-layer coated porous materials and methods of making the same
Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a...
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7501097 |
Positioning device for a test element
The invention relates an analysis system having a positioning device for positioning a test element and a method for positioning the test element in the analysis system. The positioning device has...
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7494824 |
Interactive system for presenting and eliminating substances
An interactive system is provided with at least one active surface of plastic from monomers containing at least one structural element derived from a carbon dioxide (A), and at least one substance...
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7491551 |
Quantitative lateral flow assays and devices
This invention provides solid phase specific binding lateral flow assay methods, devices and kits for quantitating high and low molecular weight analytes. The methods and devices of the invention...
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7491546 |
Reagent delivery and photometric chlorine analysis
Water soluble analytical agents for chlorine analysis of water are delivered into a sample from a support that is beneficially moved in the sample to assist delivery and mixing. Beneficially, an...
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7491542 |
Test device for determining the concentration of LDL-cholesterol in a sample
The present invention provides a test device for determining the concentration of LDL-cholesterol in a sample. The test device has a continuous solid surface with at least one reaction area on the...
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7488602 |
Method for detecting and compensating an underdosage of test strips
The invention concerns a method for detecting an underdosage of an analytical test element and optionally for compensating the underdosage. The invention also concerns an analytical system and a...
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7481975 |
Hydrogen peroxide indicator and method
The present invention provides a hydrogen peroxide indicator that includes a substrate on which is disposed an indicator composition that includes at least one of a select group of colorants. As a...
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7476548 |
Dry reagent strip configuration, composition and method for multiple analyte determination
An assay device, analytical instrument and assay method for determining the presence or amount of an analyte in a fluid is disclosed. The device is a one-step lateral flow dry reagent immunoassay...
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7476533 |
Diagnostic devices for use in the assaying of biological fluids
Diagnostic in-vitro devices for use in the assaying of biological fluids are provided which include cover plates or backing strips which exhibit hydrophilic properties to assist in transport of the...
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7470398 |
Method and apparatus for sample evaluation
A specimen testing apparatus includes an outer case and an inner case that adjustably extends beyond the bottom end of the outer case. The inner case has a plurality of test strips for biologically...
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7456025 |
Sintered polymer membrane for analyte detection device
The present invention relates to a sintered porous polymeric material useful as membrane in an analyte detection device, such as a lateral flow device, flow through device, or a dipstick device....
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7452505 |
Method for analyzing blood test sample and dry analytical element and analytical kit utilizing the method
Objects of the present invention are to provide a method for analyzing a blood test sample containing blood platelet collected from a human body to detect presence of an analyte in the test sample,...
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7442557 |
Bi-directional flow assay device with reagent bridge
A device for conducting an assay to determine the presence or amount of an analyte in a fluid sample. The device includes a flow path that facilitates fluidic flow by capillary action. The flow...
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7439079 |
Assay devices having detection capabilities within the hook effect region
A lateral flow assay device for detecting the presence or quantity of an analyte within a test sample is provided. The device utilizes multiple zones, one of which serves as an indicator of whether...
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7439033 |
Method and test strip for determining a fluid analyte
A reagent strip for measuring the concentration of glucose in whole blood has a polymer on at least one side thereof to increase the opacity thereof, thereby reducing the effect of hematocrit on...
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7432111 |
Non-continuous immunoassay device and immunoassay method using the same
A non-continuous immunoassay device which includes two or more separated pads for immunoassay analysis, and is capable of controlling the migration speed of a mobile phase between the separated...
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7432105 |
Self-calibration system for a magnetic binding assay
A self-calibrated, magnetic binding assay (e.g., sandwich, competitive, etc.) for detecting the presence or quantity of an analyte residing in a test sample is provided. The magnetic binding assay...
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7427511 |
Immunochromatographic test device
An immunochromatographic test device of the present invention comprises: a sample receiving member for receiving a sample; a label holding member for holding a labeling substance to bind to an...
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7399639 |
Sensors, and methods of making and using the same
The present invention is directed, in part, to sensors for detecting metal ions, and methods of making and using the same.
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