Solianis Holding Ag

Thomas W Schrepfer

Andreas Caduff

Etienne Hirt

Heinz Süsstrunk

For measuring the concentration of a substance in body fluid, such as the glucose level in blood or tissue, a strip electrode () and a ring electrode () are arranged at the specimen. The ring electrode () is in direct electrical contact with the specimen while the strip electrode () is electrically insulated therefrom. The strip electrode () is arranged parallel to an arm or a leg for obtaining a large interaction length. The electrodes () form a capacitor in a resonant circuit. A modulated voltage in the MHz range close to or at the resonance frequency is applied to the electrodes and the response of the body fluid is measured. This design allows a measurement of high accuracy.

Method and device for determining the concentration of a substance in body liquid

One aspect of the invention provides a device that non-invasively determines the concentration of a substance in a target. The device includes a first electrode, a measuring circuit, and a data processor. In one embodiment of the device, the first electrode can be electrically insulated from the target, e.g., a cover layer of insulating material covers the first electrode.

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Oberbözberg, Switzerland

Thomas W Schrepfer