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| Number | Title | Issue Date |
| 5126271 | Method for determining the consumption rate of alcohol by a human subject An improved method for determining the approximate consumption rate of alcohol by a human subject includes the steps of using are blood sample from such subject to develop a subject serum panel. Such serum panel includes at least twelve constituents, pref... | 06/30/1992 |
| 5122451 | Dry liquid analysis element A dry multilayer analysis element which allows easy permeation of a high molecular weight component or hydrophobic component, which has, in order, at least a water permeable porous reagent layer, a water permeable light reflecting/screen layer, and a wate... | 06/16/1992 |
| 5114678 | Device for wiping a reagent strip The removal of excess fluid from a test strip should be performed in a consistent manner to provide consistent results. To eliminate user variability introduced by manual blotting techniques, the device of the present invention wipes fluid from a test str... | 05/19/1992 |
| 5106582 | Specimen test slide and method of testing for fecal occult blood A specimen slide in accordance with the present invention comprises a front panel including a test material placement side and a portion of a test sheet, the test material placement side including at least one aperture which is configured to accept a test... | 04/21/1992 |
| 5100619 | Device and method for collecting fecal occult blood specimens A method and specimen slide for obtaining fecal occult blood specimens. The slide includes first and second portions each including front and back panels. The first portion includes one or more apertures formed through its front panel which exposes a reag... | 03/31/1992 |
| 5094956 | Fecal sample immunoassay composition and method A method for preparing a fecal sample of immunoassay testing comprising the steps of dispersing a sample of from 1 to less than 10 wt. % of a stool sample in an aqueous fecal test solution formulated with one or more preservatives, analyte stabilizing age... | 03/10/1992 |
| 5089420 | Composition, device and method of assaying for a peroxidatively active substance utilizing amine borate compounds A new and improved test device and method of determining the presence or concentration of a peroxidatively active substance, such as hemoglobin, in a test sample are disclosed. The test device includes a test pad comprising a suitable carrier matrix incor... | 02/18/1992 |
| 5084395 | Reducible indicator compositions containing pyrogallol derivatives The invention relates to a composition useful in determining an analyte in a sample. The composition contains an indicator system which forms a detectable signal in the presence of said analyte, and which is not a coupling system, as well as a pyrogallol ... | 01/28/1992 |
| 5084382 | Agent and process for the detection of redox systems The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R1 is a hydrogen atom or a lower alkyl or aryl radical, R2 is a hydrogen atom or a lower alkyl radical which can be ... | 01/28/1992 |
| 5081040 | Composition and kit for testing for occult blood in human and animal excretions, fluids, or tissue matrixes A diagnostic kit is disclosed for the detection of hemoglobin, myoglobin, ferritin, or the like substances having peroxidase-like activity in different mixtures of biological origin, such as fecal blood in toilet bowl, occult blood in the breath of intern... | 01/14/1992 |
| 5081044 | Detection of hydrogen peroxide with optical indicator chalcogen compounds Optical indicator chalcogen (selenide or sulfide) compounds responsive to oxidants, e.g., hydrogen peroxide, and a method for using such indicators. Upon oxidation the resulting intermediate undergoes spontaneous elimination of the chalcogen residue to yi... | 01/14/1992 |
| 5071623 | Urinary test paper The test paper for urinalysis of the present invention is made up of water-soluble paper which consists of 99-45 weight per cent of carboxymethyl cellulose and 1-55 weight per cent of wood pulp. This water-soluble paper is covered or impregnated with one ... | 12/10/1991 |
| 5068197 | Fecal occult blood test methods An improved method for detecting peroxidatively active materials in a sample is provided, the method incorporating antimalarial drugs such as quinine, quinidine, chloroquine, primaquine, and quinacrine as modulating compounds. In a preferred embodiment, t... | 11/26/1991 |
| 5066463 | Multiple-purpose fecal examination apparatus A fecal examination apparatus includes: an extension tube laterally protruding from an upper hollow portion of a housing so that a test reagent may be dripped into the extension tube to be in contact with a fecal sample in the tube for performing an occul... | 11/19/1991 |
| 5064766 | Method for differentiating the source of occult gastrointestinal bleeding The specification discloses a fecal occult blood test device capable of determining whether the blood found during the test originated in the upper or lower gastrointestinal track. A fecal sample is applied to a test medium charged to be differentially at... | 11/12/1991 |
| 5061632 | Capillary tube hemoglobinometer and oximeter An oximeter that measures both the total hemoglobin concentration in whole, undiluted blood and the percentage of the hemoglobin saturated with oxygen. The oximeter uses red and infrared light-emitting diodes to illuminate a capillary tube filled with a s... | 10/29/1991 |
| 5053342 | Fecal occult blood test reagents An improved method for detecting peroxidatively active materials in a sample is provided, the method incorporating antimalarial drugs such as quinine, quinidine, chloroquine, primaquine, and quinacrine as modulating compounds. In a preferred embodiment, t... | 10/01/1991 |
| 5041387 | Determination of the acid-base status of blood In order to simplify the operation for determination of the acid-base status of blood, composed of the values for pH, pCO2 and the base excess BE, the base excess BE is determined through measurement of the pH-value at a pCO2 of abou... | 08/20/1991 |
| 5004584 | Device for testing fluids Blood tests are made using a diagnostic stick which has a testing chamber at one end of the stick. The chamber has an open end and is dimensioned so that blood can be drawn in to fill the chamber by capillary action. A testing surface is either mounted in... | 04/02/1991 |
| 4997769 | Method and an apparatus for determining blood components Method and apparatus for spectrophotometrically determining the concentration of a number of hemoglobin derivatives comprising at least deoxyhemoglobin and oxyhemoglobin or parameters derived from the concentration of individual hemoglobin derivatives, in... | 03/05/1991 |
| 4988616 | Method for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicators A method for detecting hydrogen peroxide wherein a sample is contacted with a peroxidase or a peroxidatively-active substance and a redox indicator of the following ##STR1## in which A and D independently of one another represent phenyl, pyridyl or ... | 01/29/1991 |
| 4983416 | Manufacturing method for an occult fecal blood test slide A test slide for conducting a test of occult blood in feces is fabricated with a sheet of filter paper or other reagent carrier material impregnated with a test reagent and packaged in an envelope enclosure which overlies both sides of the reagent carrier... | 01/08/1991 |
| 4978632 | Method of pre-treating samples in peroxidase-catalyzed enzyme assays A method for reducing the occurrence of falsely elevated results in a peroxidase-catalyzed, enzyme assay is described. Interference in an assay caused by blood or bood products in a clinical specimen is eliminated or reduced by reacting the specimen with ... | 12/18/1990 |
| 4971914 | Developer for fecal occult blood tests Fecal occult blood tests of enhanced sensitivity, specificity, and readability are provided by employing (1) a developer or complete reagent solution that uses as a solvent system a solvent comprising at least about 50% by volume of a solvent for iron pro... | 11/20/1990 |
| 4971918 | Reducible indicator compositions containing pyrogallol derivatives The invention relates to a composition useful in determining an analyte in a sample. The composition contains an indicator system which forms a detectable signal in the presence of said analyte, and which is not a coupling system, as well as a pyrogallol ... | 11/20/1990 |
| 4970171 | Denaturant reagents for convenient determination of hemoglobin derivatives in blood An analytical method for determining the relative amount of a particular hemoglobin derivative, e.g., glycated hemoglobin, in a blood sample wherein the amounts of both total hemoglobin and the hemoglobin derivative are measured and related mathematically... | 11/13/1990 |
| 4966855 | New redox indicators The invention provides new redox indicators and uses for these redox compounds (I): ##STR1## Wherein X is oxygen or sulphur, R1 is julolidine or tetrahydroquinoline, which can carry an alkyl radical on the nitrogen atom which, in turn... | 10/30/1990 |
| 4960710 | Device and method of assaying for trace mounts of proteins A new and improved method and composition for determining the presence and concentration of low to trace amounts of proteins, such as albumin, in a test sample, such as urine. The method includes using a reagent composition capable of interacting with low... | 10/02/1990 |
| 4959196 | Device for blood sampling and analysis The invention relates to a device for sampling and analyzing blood. It comprises an auto-pricker (1), a magazine (2) for strips, these strips comprising a reactive zone, and a reflectometer (6). Moreover, the magazine (2) is integral with the auto-pricker... | 09/25/1990 |
| 4957872 | Method for the determination of redox reactions using iodate to eliminate asorbic acid interference The present invention provides a process for the detection of redox reactions by introducing a redox reagent system into a test system, wherein a soluble iodate is additionally added to the test system in an amount which is in excess of the highest amount... | 09/18/1990 |
| 4956300 | Aid for determining the presence of occult blood, method of making the aid, and method of using the aid A guaiac reagent-based diagnostic aid for determining the presence of occult blood in an aqueous system contains a micron-sized silica gel into which a guaiac solution has been adsorbed. The guaiac-containing carrier is contacted with a dry, particulate, ... | 09/11/1990 |
| 4954451 | Agent for diminishing ascorbate interference in reagent systems and method relating thereto The present invention is directed to an agent and method for eliminating ascorbate interference in reagent systems, particularly assay systems using oxidase/peroxidase coupled reactions or similar type redox chemistry. The present invention can also be us... | 09/04/1990 |
| 4942132 | Reagent composition for fecal occult blood tests Fecal occult blood tests of enhanced sensitivity, specificity, and readability are provided by employing (1) a developer or complete reagent solution that uses as a solvent system a solvent comprising at least about 50% by volume of a solvent for iron pro... | 07/17/1990 |
| 4939097 | Fecal occult blood test methods An improved method for detecting peroxidatively active materials in a sample is provided, the method incorporating antimalarial drugs such as quinine, quinidine, chloroquine, primaquine, and quinacrine as modulating compounds. In a preferred embodiment, t... | 07/03/1990 |
| 4937197 | Fecal occult blood test method Fecal occult blood tests of enhanced sensitivity, specificity, and readability are provided by employing (1) a developer or complete reagent solution that uses as a solvent system a solvent comprising at least about 50% by volume of a solvent for iron pro... | 06/26/1990 |
| 4933277 | Method of quantitative analysis of hydrogen peroxide and reagent therefor A method for quantitative analysis of hydrogen peroxide at a high precision is disclosed. The method comprises reacting a divalent cobalt compound with hydrogen peroxide in the presence of peroxidase or a substance similar to peroxidase to produce a triva... | 06/12/1990 |
| 4920045 | Detection of occult blood in feces A method for detection of occult blood in a fecal sample which comprises acting a glycosidase type bacteriolytic enzyme on the fecal sample and subjecting the resulting fecal sample to simultaneous detection of hemoglobin, preferably in combination with t... | 04/24/1990 |
| 4916058 | Method and test composition for determination of hydrogen peroxide Disclosed is a method for the colorimetric determination of hydrogen peroxide in a sample by reacting a particular chromogen with the hydrogen perioxide in the presence of peroxidase and measuring the absorbancy of the reaction solution in the visible or ... | 04/10/1990 |
| 4910803 | Apparel having a breach indicator Disclosed is a composite material adaptable to form bodily fluid protection apparel that can alert a wearer that a breach in the apparel has occurred. The apparel comprises a first layer impervious to bodily fluid and a second layer supporting the first l... | 03/27/1990 |
| 4908323 | Method for the determination of organic peroxides in organic solutions A peroxide-testing method using a reagent based on Ti(IV) compounds which contains, in a lower aliphatic alcohol having 1-5 C atoms, a compound TiX4 in which X is Cl or OR with R being an alkyl group having 1-5 C atoms, and where appropriate, u... | 03/13/1990 |
