Siemens Medical Solutions Diagnostics Patent applications |
Patent application number | Title | Published |
20100047778 | Methylation Specific Primer Extension Assay for the Detection of Genomic Imprinting Disorders - Provided is a method for determining genomic imprinting disorders in a patient based upon methylation specific primer extension in a format amenable to high throughput and multiplex formats. After bisulfite modification of a genomic sample, DNA is amplified and hybridized to discrimination primers specific for a CpG dinucleotide site in the sample. Because no extension products from the discrimination primers are produced from DNA that has a deletion or functional inactivation at the CpG site, the sample may be diagnosed as having a genomic imprinting disorder by way of comparison with a normal sample. | 02-25-2010 |
20090308183 | Assay Timing in a Clinical Analyzer Using a Cuvette Carrier - The clinical analyzer includes a cuvette carrier that is moved in a manner to provide flexible assay timing and variable incubation periods. Multiple assays having such varied incubation times can be run concurrently in random-access, avoiding timing conflicts. Fluid delivery stations are placed around the cuvette carrier in positions that are independent of assay timing. The cuvettes move in unison, in multiples of incremental steps, along a closed geometrical path. The cuvette carrier is movable variable distances in opposite directions in a single time cycle to position specific cuvettes at specific locations for delivery of sample or reagent. The direction of movement of the cuvette carrier is preferably based on a determination of the shortest distance between the cuvette and respective fluid delivery stations. However, in each time cycle there is a net progressive incremental stepwise movement of the cuvettes in a selected direction. | 12-17-2009 |
20090128816 | Miniature Optical Readhead and Colorimeter for Analysis Media - A miniature readhead is provided for photometric color detection using ambient light. The readhead is hand-held, including a superposed plate and tray. The tray receives sample media configured to react and to change color according to an amount of analyte in a sample. The plate is optically transmissive, so that ambient light is transmissible therethrough to the sample media indexed within the tray. An array of light detectors is disposed along the plate, including sets of detectors configured to detect light of at least three mutually distinct wavelengths reflected from the test areas. Light shields superposed with each of the light detectors selectively permit ambient light to pass to the tray, while substantially preventing ambient light from reaching the light detectors prior to reflecting from the test areas. The readhead may be incorporated into a photometric diagnostic instrument configured to analyze the reflections and derive a diagnosis value. | 05-21-2009 |
20090029349 | Novel Applications of Acridinium Compounds and Derivatives in Homogeneous Assays - Chemiluminescent acridinium compounds are used in homogeneous assays to determine the concentration of an analyte in a sample without strong acid or strong base treatment. The chemiluminescent acridinium compounds include acridinium esters with electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus to inhibit pseudo-base formation, or acridinium sulfonamides with or without electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus. | 01-29-2009 |
20080305557 | Novel Applications of Acridinium Compounds and Derivatives in Homogeneous Assays - Chemiluminescent acridinium compounds are used in homogeneous assays to determine the concentration of an analyte in a sample without strong acid or strong base treatment. The chemiluminescent acridinium compounds include acridinium esters with electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus to inhibit pseudo-base formation, or acridinium sulfonamides with or without electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus. | 12-11-2008 |