The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1994
Filed:
Mar. 17, 1993
Reiner Schlipfenbacher, Lampertheim, DE;
Joachim Steinbiss, Lorsch, DE;
Heinz-Friedrich Trasch, Ludwigshafen, DE;
Boehringer Mannheim GmbH, Mannheim, DE;
Abstract
A test carrier for the analytical determination of a component of a liquid sample, especially for the diagnosis of diseases, in which a reaction sequence taking place on a test carrier having a base layer, a liquid transport path which extends from a sample application region to an evaluation region and a signal formation layer in which, on the basis of a signal formation reaction, with the help of a signal formation reagent system, an optically determinable change characteristic for the component to be determined takes place. At least one signal formation reagent is present in the signal formation layer. In the evaluation region, there is provided a liquid transport layer which is an absorbent material which is in fluid contact with the liquid transport path. The signal formation layer runs parallel to the liquid transport layer, the signal formation layer is in liquid contact via a liquid exchange surface with the liquid transport layer perpendicularly to the plane of the base layer and the speed of liquid transport of the liquid transport layer and the chronological commencement of the signal formation reaction in the signal forming layer are adapted to one another in such a manner that the liquid first spreads out in the liquid transport layer and the signal formation reaction takes place substantially thereafter.