Encoded biosensors and methods of manufacture and use thereof

US8888973B2 · kind B2 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• John T. Austera · Indianapolis, US
• Terry A. Beaty · Indianapolis, US
• Abner D. Joseph · Carmel, US
• Nathan E. Manlove · Noblesville, US
• Steven K. Moore · Carmel, US
• James L. Pauley · Salt Lake City, US
• Randall K. Riggles · Indianapolis, US

Key dates

• Filing date: Jul 29, 2011
• Grant date: Nov 18, 2014
• Expiry date: Dec 18, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/48771
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An analyte test sensor strip is disclosed having information coded thereon as well as a method of forming the same and conducting an analyte test using the analyte test sensor strip. Information relating to an attribute of the strip or batch/lot of strips may be coded based on resistance values pertaining to electrical aspects of the strip, such as a primary resistive element and a secondary resistive element, the secondary resistive element having one of a plurality of states defined by a location of a closed tap to form a unique resistive path for the secondary resistive element that includes a portion of the primary resistive element depending on the location of the closed tap. The states may be formed on the strip by a secondary processing step in the manufacture of the strip in which a plurality of taps are severed leaving only one tap in a closed state.