Patent ID: 7745228

Claim:
A device for the simultaneous and qualitative or quantitative determination of a plurality of analytes, wherein at least one of the plurality of analytes is a cellularly bonded analyte, in a liquid sample, the device comprising: a single membrane with an application zone for the application of the liquid sample, at least one group of at least two indicator zones, which are able to interact with the analytes, and at least one absorption region which takes up the liquid after having passed the indicator zones; wherein the indicator zones are located between the application zone and the absorption region; wherein the at least two indicator zones are positioned on the membrane substantially parallel and absent a physical divider between indicator zones, the at least two indicator zones comprise at least two types of indicator particles of which at least one type being erythrocytes; and wherein the at least two indicator zones comprise a first indicator zone containing a bonding element for binding the cellularly bound analyte and the at least two indicator zones comprise a second indicator zone containing a binding element for binding an analyte comprising an erythrocyte in the liquid sample, wherein the erythrocyte serves as both the indicator particle and the analyte.