Biovotion Ag

Francois Dewarrat

Andreas Caduff

Mark Stuart Talary

Hans-Joachim Krebs

Gianluca Stalder

Daniel Huber

Alexander Megej

The apparatus for the non-invasive glucose detection comprises an electrical detection device () 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 (), which allows to detect the pressure of the apparatus against the skin and/or quick movements. Further sensor modules, such as a temperature sensor () or alternative perfusion sensor (), improve the accuracy of the measured result.

Device for determining the glucose level in body tissue

A device is described for measuring a parameter of living tissue, in particular a glucose level, which parameter affects a response of said tissue to an electric field. The device comprises a substrate (), which carries a ground electrode () as well as a plurality of signal electrodes (-). The gaps () between the ground electrode and the signal electrodes are filled with a solid filler material () in order to provide an even surface. Optical reflection detectors () can also be located in these gaps in order to avoid field distortions and obtain a compact design. The backside of substrate () carries electronic high-frequency components for improving signal quality.

Sensing device for body tissue properties

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Zurich, Switzerland

Francois Dewarrat