System and method for coding information on a biosensor test strip

• US 20050019805A1
• Filed: 06/18/2004
• Published: 01/27/2005
• Est. Priority Date: 06/20/2003
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Operations Limited (Roche Holding AG)
• Inventors: Groll, Henning
• Granted Patent: US 7,645,421 B2
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: G01N 33/48771 Coding of information, e.g. calibration data, lot number
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387

Abstract

The present invention provides a test strip for measuring a concentration of an analyte of interest in a biological fluid, wherein the test strip may be encoded with information that can be read by a test meter into which the test strip is inserted.

Claims

1. A test system for measuring a concentration of an analyte of interest in a biological fluid, the test system comprising:

a test meter comprising a connector having at least ten contacts; and

a test strip adapted to be inserted into the test meter connector, the test strip comprising;

a substrate having a surface;

at least ten contact pads formed on the surface;

wherein the at least ten contacts make contact with the respective at least ten contact pads when the test strip is inserted into the test meter connector.

2. The test system of claim 1, wherein:

the at least ten contacts comprise at least eleven contacts; and

the at least ten contact pads comprise at least eleven contact pads.

3. The test system of claim 1, wherein:

the at least ten contacts comprise at least sixteen contacts; and

the at least ten contact pads comprise at least sixteen contact pads.

4. The test system of claim 1, wherein all ten contact pads remain functional even when the ten contacts each remove all conductive material from the test strip under the respective contact as the test strip is inserted into the test meter.