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6335171 |
Immunochemical determination of substances contained on textile fibers or polymers
A method for the detection of substances contained on textile fibers or other natural or synthetic polymers is disclosed. The contained substances are identified with immunochemical methods, where...
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6335200 |
Device containing and method of making a composition having an elevated freezing point and change of color at selected temperatures
Composition containing two components, which together show an elevated freezing point and bring about a color change at selected temperatures and method of making the same. Use of the composition...
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6331278 |
Self-contained double handhold for preventing false urine specimens
A self-contained double handhold that is a complete device for preventing a subject's hands from putting a false specimen into a container. Previous hand-restricting apparatus was too cumbersome...
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6328931 |
Analyte collection and assaying assembly
Swabbing and assaying structures, and selected methods of use, enable a test surface to be swabbed, and subsequently facilitate a quantitative determination of the quantities of analyte collected...
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6325975 |
Suction generating device and sample analysis apparatus using the same
A suction generating device for a sample analysis device is provided. The device comprises four parts, namely, a cover plate 61, a middle plate 62, a bottom plate 63 and an operation plate 64. A...
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6325974 |
Package for decayable foodstuffs
Package (1) for decayable foodstuffs (2), consisting of a package material (3) and forming a mainly closed package space (4) and a mainly closed indicator space (5) for an indicator (6). The...
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6325980 |
Test strip incubation device
A test strip incubation device and method for developing a test strip having a reagent test pad disposed thereon, the reagent test pad requiring an incubation time, which allows greater accuracy...
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6326214 |
Immunity testing device
An immunity testing device formed of a thin sheet of material folded to three portions, and the two end portions; named "front cover"0 and "back cover"; fold back to different sides of the center...
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6326208 |
Assay for total and direct bilirubin
Methods for assay of both total bilirubin and direct bilirubin in a sample. The inventive methods enable the amounts of total and direct (conjugated) bilirubin to be colorimetrically measured in...
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6322750 |
Gas detector indicator strip providing enhanced dynamic range
The present disclosure is a tape responsive to gases. One version is paper impregnated with lead acetate, a backing layer of impervious sheet material, and a top face pervious, transparent layer....
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6323038 |
Diagnostic reagent for complications associated with diabetes or renal failure
In view of the situation of the prior art, the present invention specifies the structure of a late-stage product of Mailard reaction in vivo having a close relation with various tissue disorders,...
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6319466 |
Test device for detecting the presence of a residue analyte in a sample
A test device for detecting the presence of a residue analyte in a sample includes a support strip and a sample-absorbing matrix attached to the support strip. The sample-absorbing matrix has a...
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6319705 |
Microchip device for electrophoresis
A microchip device for electrophoresis includes not only a microchip having a separation flow route for separating a sample electrophoretically and an electrical power source for applying a...
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6319665 |
Home test kit and method with telephone verification of results
Self-testing for a disease or physiological condition is achieved by having the individual being tested obtain a sample of physiological fluid, e.g., blood, urine, sputum or saliva, from him or...
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6316267 |
Luminescent protein stains an their method of use
The invention relates to the staining of poly(amino acids), including peptides, polypeptides and proteins in gels and on solid supports, using neutral or anionic complexes of transition metals.
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6303288 |
Integrated microchip genetic testing system
A genetic testing system includes a miniaturized thermal cycling device and an integrated, unitary microchip based detection device with microfluidic controls, on chip electronics. The genetic...
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6300138 |
Methods for conducting tests
Methods and apparatus for automated sample analysis are provided in which a plurality actuators are involved in moving a samples from one compartment to another, and appropriate reactants are...
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6299838 |
Test apparatus for assaying a component in a liquid sample
A test apparatus for assaying a component in a liquid sample by measuring a reflected light, comprising a support having a through hole or a light permeable area, a reagent layer having a detecting...
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6297060 |
Assay devices comprising a porous capture membrane in fluid-withdrawing contact with a nonabsorbent capillary network
Devices for use in heterogeneous ligand-receptor assays, having a porous member in contact with a nonabsorbent textured surface, where the surface texturing is such that a capillary network is...
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6296807 |
Kits for the detection of human immunodeficiency virus type 2 (HIV-2) antigens
The invention relates to a novel retrovirus isolated from patients in West Africa that is capable of causing lymphadenopathies and the acquired immune deficiency syndrome (AIDS). This virus, which...
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6290838 |
Apparatus and method for characterizing liquids
An apparatus and a method of characterising liquids employ liquid sensors of different types of technology, in order to generate characterisation data from the whole of the output signals...
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6291249 |
Method using an apparatus for separation of biological fluids
A cell containing sample is separated into a cell containing portion and a substantially cell depleted portion, by mixing the sample with particles to produce a cell containing network, and...
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6287758 |
Methods of registering trans-membrane electric potentials
Sensitive methods for identifying compounds having biological activity comprising combining living cells with two fluorescent membrane permeable ionic dyes having the same charge sign, the first of...
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6284472 |
Method for extending the range of an immunoassay
Calibrating an immunoassay by generating two reaction rate measuring curves, from samples having higher and lower relative levels of antigen, extrapolating a combination of the curves to cover...
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6280687 |
Diagnostic method for detection of periodontitis or peri-implantitis
The invention relates to methods and test kits for diagnosis of periodontal disease activity in mammals, especially in human. The methods of the invention provide for rapid chair-side diagnosis of...
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6281004 |
Quality control for cytochemical assays
The invention describes quality control devices for assays that measure analytes in cells and tissue samples, and methods of use thereof. In particular, the quality control device comprises a...
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6277646 |
Fluid specimen collecting and testing apparatus
A device is provided for both collecting and testing a fluid specimen. The device includes a specimen container having a collection chamber, an isolation chamber and a test chamber. The collection...
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6270725 |
Diagnostic kit for assaying sucrose in physiological fluids
This invention provides a kit and a method for detecting sucrose in physiological fluids and said method. The kit comprises: (a) a solid mixture comprising ATP, NAD, hexokinase, G-6-PDH, and a...
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6265220 |
Assay for homocysteine
A non-immunochemical method is disclosed for determining homocysteine in a sample. A combination of the sample and a first compound that comprises a cis-1,4-dioxo-2-butene moiety or hydrolytically...
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6261519 |
Medical diagnostic device with enough-sample indicator
A fluidic medical diagnostic device permits measurement of analyte concentration or a property of a biological fluid, particularly the coagulation time of blood. The device has at one end a sample...
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6258548 |
Single or multiple analyte semi-quantitative/quantitative rapid diagnostic lateral flow test system for large molecules
Lateral flow device and method are provided for performing semi-quantitative visual or instrument-based detection in a test sample of a large molecule analyte that contains two binding domains, α...
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6248596 |
Liposome-enhanced immunoassay and test device
A test device for detecting or determining an analyte in a test solution includes an absorbent material having separate contact, competitive binding, and measurement portions. The contact portion...
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6248294 |
Self contained diagnostic test unit
A self contained diagnostic test unit is provided for use in the collection and analysis of a biological specimen or the like. The test unit comprises a tubular housing defining a specimen chamber...
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6248598 |
Immunoassay that provides for both collection of saliva and assay of saliva for one or more analytes with visual readout
A device that provides for both the collection of saliva and detection of at least one analyte therein, e.g., a drug, is provided. This device provides for rapid analysis of saliva samples, while...
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6245574 |
Sensors
Sensors for the qualitative and quantitative determination of K + ions in aqueous systems are described, which consist essentially of a carrier and an active layer applied to this carrier, whereby...
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6245295 |
Sample testing apparatus with high oxygen permeable tape providing barrier for closed reaction chamber
A test sample card has a well formed in the card body for receiving a fluid sample containing a microbiological agent or microorganism and a reagent. The test sample card has a membrane in the form...
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6245573 |
Rapid assessment of the coagulant activity of blood
This invention relates to diagnostic methods and test kits for rapidly assessing the coagulant activity of blood by measuring the rate of blood clotting in the presence of certain metal ions. A...
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6242261 |
Assessment of ion availability in heterogeneous media using ion-exchange membranes
The invention relates to a kit for the measurement of anion, cation or zwitterion availability in a medium or for the measurement of free inorganic ions in disrupted cells from plant or animal...
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6241946 |
Solventless protein assay standard
A method for preparing a solventless protein standard is disclosed in which a solventless dye indicator and a predetermined amount of solventless protein are placed in an appropriate receptacle...
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6235532 |
Furfuraldehyde detector and method of manufacturing the same
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6235489 |
Method for diagnosing and distinguishing stroke and diagnostic devices for use therein
A method for determining whether a subject has had a stroke and, if so, the type of stroke which includes analyzing the subject's body fluid for at least four selected markers of stroke, namely,...
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6232128 |
Package for container of liquid medicine containing bicarbonate and pH indicator
The invention relates to a bicarbonate-containing medical solution package. The package comprises a gas-permeable plastic container holding a bicarbonate-containing medical solution and a...
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6228657 |
Environmental material ticket reader and airborne hazard detection system
An airborne hazardous material reader device capable of receiving a collection element. The reader device has a body forming a slot area for receiving the collection element. The body has a...
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6225128 |
Color test card package for testing for the presence of lead
A package comprises a sealed plastic envelope containing a small amount of desiccant sufficient to absorb the moisture in the air entrapped in the envelope. The package contains a dry test card...
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6221655 |
Spin filter assembly for isolation and analysis
This invention relates to a spin filter assembly and its usage to facilitate the isolation and analyses of molecules and compounds such as proteins present in various biological and non-biological...
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6218134 |
Process for specific binding assay for measuring the amount of analyte in a liquid test sample
A specific binding assay process which is useful for quick qualitative or quantitative measurement and which can be used for various purposes, and a specific binding assay device suitable for the...
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6218189 |
Method for indicating exposure to an oxidative sterilant or disinfectant
A method and apparatus detect exposure to an oxidation-type sterilant using a non-PH-sensitive bleachable dye as a chemical indicator. A change in color indicates exposure to oxidation-type sterilant.
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6214627 |
Rapid colorimetric method for measuring polymers in aqueous systems
A method for measuring the concentration of an anionically charged polymer in an aqueous solution is described and claimed. The method requires a reagent solution that is also described and...
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6214291 |
Paint test apparatus
A test kit for determining whether paint applied to a surface is oil base paint or latex base paint. The test kit comprises a housing that has a tip at one end that retains a swab and encloses a...
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6207113 |
Device for sampling feces
A device for sampling feces, by which an approximately constant amount of feces can be sampled in simple manner and it is possible to easily identify whether occult blood is present in the feces or...
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