Device for determining the glucose level in body tissue

US9713447B2 · kind B2 · utility

Assignee

• BIOVOTION AG · CH

Inventors

• Andreas Caduff · Zürich, CH
• Mark Stuart Talary · Zürich, CH
• Francois Dewarrat · Zürich, CH
• Daniel Huber · Reutlingen, DE
• Gianluca Stalder · Thalwil, CH

Key dates

• Filing date: Nov 10, 2005
• Grant date: Jul 25, 2017
• Expiry date: Mar 21, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0247
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The apparatus for the non-invasive glucose detection comprises an electrical detection device (2) for measuring the response of the tissue or blood to an electric field at low frequencies below 1 MHz and at high frequencies above 10 MHz. The former is primarily dominated by skin hydration and sweat, while the latter contains contributions from the current glucose level. Combining the two signals allows an increased degree of accuracy. The apparatus further comprises a force or acceleration sensor (4, 5), which allows to detect the pressure of the apparatus against the skin and/or quick movements. Further sensor modules, such as a temperature sensor (6) or alternative perfusion sensor (7), improve the accuracy of the measured result.