Test elements for detecting at least one analyte in a body fluid, as well as methods of manufacturing the same

US10150114B2 · kind B2 · utility

Assignee

• Roche Diabetes Care, Inc. · US

Inventors

• Bernd Hiller · Lampertheim, DE
• Rudolf Pachl · Ellerstadt, DE
• Daniela Pfiffi · Mannheim, DE
• Ewald Rieger · Frankenthal (Pfalz), DE
• Christa Sternberger · Hockenheim, DE

Key dates

• Filing date: Jun 21, 2018
• Grant date: Dec 11, 2018
• Expiry date: Jun 21, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/7796
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods are disclosed for manufacture of test elements for detecting at least one analyte in a body fluid, where the test elements include a housing having at least one base element and at least one cover element. The methods include providing the base element, and mounting the cover element to the base element with an adhesive, wherein the adhesive contacts at least one test field of the cover element such that the adhesive is interposed between the test field and the base element and at least partially covers the test field. The test elements also include at least one fluid channel formed within the housing, where the the fluid channel includes a capillary region and a measurement region. The capillary region and the measurement region have differing aspect ratios. The at least one test field has at least one test chemical, where the test chemical is adapted to change at least one optically measurable property in the presence of the analyte.