Patent ID: 8591816
Filing Date: 2013-11-26
Classification: B01L,G01N

Abstract:
1. A cartridge device for conducting platelet aggregation analysis, comprising: a cell having a receiving portion for receiving a blood sample; a stirring device for circulating said blood sample within said receiving portion; an electrode holder having at least two sensor units, wherein each sensor unit comprises at least two electrodes for measuring the electrical impedance between the at least two electrodes within the blood sample in at least two different locations; and an analyser for comparing the electrical impedances measured by each one of the at least two sensor units in each of the at least two different locations in the blood sample in order to determine whether an acceptable or a non-acceptable variation in the impedance measurements exists, wherein the analyser stops an analysis of platelet aggregation when a non-acceptable variation is indicated, and reports a mean value of the impedance measurements by the at least two sensor units when an acceptable variation is indicated; wherein the electrode holder is attached to the cell such that one end of each one of the at least two electrodes forming one of the sensor units for measuring the electrical impedance between the at least two electrodes is within the blood sample and that the opposite end of each one of the at least two electrodes is connectable to the analyser; wherein the at least two electrodes consist of a metal comprising a first material comprising at least one of copper and copper alloy, which is covered by a second material comprising at least one of silver, platinum, and gold.