Biosensor and methods for manufacturing

US8992750B1 · kind B1 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• Terry A. Beaty · Indianapolis, US
• Eric R. Diebold · Fishers, US
• Abner D. Joseph · Carmel, US
• Randall K. Riggles · Indianapolis, US

Key dates

• Filing date: Jul 2, 2013
• Grant date: Mar 31, 2015
• Expiry date: Jul 2, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/3272
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments of the invention include a test strip with a sample chamber opening spanning the width of the test strip at the sampling end and including a portion of the lateral sides at that end. The chamber is vertically bounded by upper and lower substrate layers, horizontally bounded by the front face of a spacer layer, and open on the remaining sides. The test strip fills rapidly and requires small sample volumes. Both 1-up and 2-up manufacturing techniques for producing such test strips eliminate registration and alignment steps, and other techniques relating to the 2-up technique (simultaneously manufacturing test strips arranged in multiple columns) are also disclosed.