Cross-sensitivity-compensated biosensor

US10274408B2 · kind B2 · utility

Assignee

• BIOTRONIK SE & Co. KG · DE

Inventors

• Henning Ebert · Berlin, DE
• Andreas Bunge · Leipzig, DE

Key dates

• Filing date: May 31, 2016
• Grant date: Apr 30, 2019
• Expiry date: Jan 13, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N15/01
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments of the invention include a biosensor, such as an implantable biosensor, that includes a sensor material sensitive to at least one analyte in a pressure measurement chamber coupled to a pressure sensor. In embodiments of the invention, a pressure prevailing in the pressure measurement chamber may be determined by the pressure sensor. The sensor material is coupled in the pressure measurement chamber to a compensation material, which includes a relationship between a temperature and a volume of the pressure. The relationship is opposite to a temperature-dependent change in pressure or volume of the sensor material and at least partially compensates for a cross-sensitivity-induced change in volume of the sensor material.