Sensor device for determining the concentration of an analyte under in-vivo conditions and process of manufacturing

US11134869B2 · kind B2 · utility

Assignee

• Roche Diabetes Care, Inc. · US

Inventors

• Herbert Fink · Emmelshausen, DE
• Bernd Hiller · Lampertheim, DE
• Ulrich Mueller · Hamburg, DE
• Markus Siebenhaar · Penzberg, DE
• Christoph Grulke · Mannheim, DE

Key dates

• Filing date: Jun 3, 2019
• Grant date: Oct 5, 2021
• Expiry date: Dec 23, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/125
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A sensor device for determining the concentration of an analyte under in-vivo conditions that includes an electrode system having an electrode with immobilized enzyme molecules and a diffusion barrier that controls diffusion from the exterior of the electrode system to the immobilized enzyme molecules. The diffusion barrier may include an aliphatic polyurethane. A process of manufacturing such a sensor device is also disclosed.