Roche Diagnostics Operations, Inc.

Erich Haendler

Norbert Oranth

Carlo S Effenhauser

A method and device for optically scanning an object is provided. A detection device optically scans a scanning region of the object by displacing the detection device and the object relative to one another into successive scanning positions spaced apart by a scanning step size along a scanning direction in an object plane. An optical imaging device generates a plurality of scanned images by imaging a partial scanning region from the object plane onto a detection surface in an image plane in the scanning positions. The plurality of scanned images are broken down into scanned part images and are combined to generate combined result images. At least one object measurement image is selected from the combined result images in accordance with one or more predetermined selection criteria.

Method and device for optically scanning an object and device

A method for the determination of an analyte in a liquid sample, especially a body liquid sample, with the aid of an analytical apparatus. The apparatus receives a first measuring signal s(i=0, 1, . . . ) and a second measuring signal s(j=1, 2, . . . ; j&#x3e;i) for a test system with several successively arranged measuring areas through which a liquid sample with an analyte can flow after being applied on the test system are received by an evaluation apparatus comprised by the analytical apparatus, wherein the first measuring signal sindicates a part of the analyte bound in a first measuring area and the second measuring signal sindicates a part of the analyte bound in a second measuring area that is arranged downstream the first measuring area on the test system after the application of the liquid sample on the test system, a concentration measure N correlating with the concentration of the analyte in the liquid sample is determined by the evaluation apparatus in accordance with the following linkage of measuring signals: the concentration measurement is outputted by the evaluation apparatus after a selective further processing. Furthermore, the invention relates to an analytical apparatus for the determination of an analyte in a liquid sample as well as to a computer readable medium for performing function to determine an analyte in a liquid sample.

Method and apparatus for determining an analyte in a liquid sample

The invention relates to a method and an apparatus for analyzing a dry-chemical test element, in particular an immunological test element, wherein, in the method, a dry-chemical test element is analyzed by optical scanning, whereby measurement light beams leaving assay regions of the test element, which are loaded with one or more immobilized optically active substances, with a respective measurement light intensity are detected by a detector device. The method comprises the following steps: during the optical scanning of a first assay region, from which the measurement light beams leave with a first measurement light intensity, a first quantity of light from measurement light beams which impinges on the detector device and a working range of the detector device are adapted to one another by selecting scanning parameters according to a first set of scanning parameters, and during the optical scanning of a second assay region, from which the measurement light beams leave with a second measurement light intensity which differs from the first measurement light intensity, a second quantity of light from measurement light beams which impinges on the detector device and the working range of the detector device are adapted to one another by selecting scanning parameters according to a second set of scanning parameters which differs from the first set of scanning parameters.

Growing community of inventors

Lampertheim, Germany

Erich Haendler