Test carrier analysis system

US5281395A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Ernst Markart · Munich, DE
• Franz Bolduan · Mannheim, DE
• Jorg Schreiber · Heddesheim, DE

Key dates

• Filing date: Dec 18, 1991
• Grant date: Jan 25, 1994
• Expiry date: Dec 18, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/114165
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Test carrier analysis system for analyzing a constituent of a body fluid, consisting of test carriers (2), code carriers (3) and an evaluation device (4). The test layers (5) of the test carrier (2) contain reagents whose reaction with the sample leads to a color change characteristic of the analysis in a detection layer. The code carriers (3) contain in machine-readable form an evaluation code with an evaluation curve required for the evaluation of the test carriers. The evaluation device (4) comprises a measuring device, a code reading device and evaluation electronics. Possible operating errors are eliminated, almost without additional expenditure, by the fact that single code reader containing two reading units offset relative to one another both laterally and in the reading direction is positioned on a common insertion path (28) both for the test carriers (2) and for the code carriers (3), the test carriers (2) possess a batch-specific identification code in the form of continuous strips, the evaluation code on the code carriers (3) is a two-track code and contains a batch identification, and the evaluation device (4) comprises a comparison unit for checking the correlation of…