F. Hoffmann-la Roche Ag

Dynabyte Informationssysteme Gmbh

Marc Wittwer

Andreas Calatzis

Ben Krüger

A cartridge device having a receiving portion for receiving a blood sample and a jack portion for receiving a plug; a stirring device for circulating the blood sample within the receiving portion; and an electrode holder having at least one incorporated electrode wire pair; wherein the electrode holder is attachable to the cell such that one end of the at least one electrode wire pair forms a sensor unit for measuring the electrical impedance between the two electrode wires of the at least one electrode wire pair within the blood sample and that the opposite end of the at least one electrode wire pair forms a plug portion being connectable directly to the plug for an electrical connection of the sensor unit to an analyzer.

Method for conducting platelet aggregation analysis

Cartridge device for blood analysis

Methods and devices for conducting platelet aggregation analysis. A method for conducting platelet aggregation analysis by a cartridge device, including providing a blood sample in the cartridge device, stirring the blood sample within the cartridge device, measuring the electrical impedance between electrodes to obtain measured electrical impedance values, comparing measured electrical impedance values, discarding and repeating the measurements of the electrical impedance in case a variation of the measurements is outside a predetermined threshold range, or reporting the measured electrical impedance values in case the variation of the measurements is within the predetermined threshold range. Reported measured electrical impedance values indicate platelet aggregation in a blood sample.

Method for conducting platelete aggregation analysis by a cartridge device

A cartridge device having a receiving portion for receiving a blood sample and a jack portion for receiving a plug; a stirring device for circulating the blood sample within the receiving portion; and an electrode holder having at least one incorporated electrode wire pair; wherein the electrode holder is attachable to the cell such that one end of the at least one electrode wire pair forms a sensor unit for measuring the electrical impedance between the two electrode wires of the at least one electrode wire pair within the blood sample and that the opposite end of the at least one electrode wire pair forms a plug portion being connectable directly to the plug for an electrical connection of the sensor unit to an analyser.

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Munich, Germany

Marc Wittwer