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:
Oct. 25, 2011
Filed:
Jun. 19, 2009
Rafael Egger, München, DE;
Rafael Egger, München, DE;
LRE Medical GmbH, München, DE;
Abstract
In a method for determining the concentration of at least one substance in a liquid the liquid is applied onto a test strip containing at least one test zone, wherein an optical sensor arrangement is moved step-by-step in a first direction over the surface of the test strip while the test trip is at the same time irradiated with light of a predetermined wave length and wherein in each step the radiation reflected from the surface of the test strip is measured, and wherein in each measurement step the test strip surface is irradiated alternately with light of at least two different wave lengths and the irradiation is measured at the same time and the difference between the measurement signals obtained in each measurement step using irradiation light of different wave lengths is analyzed.