DEVICE AND METHOD FOR IN VITRO DETECTION OF BLOOD

摘要

The present invention relates to a device and system for the in vitro detection of blood. The device comprises a support having immobilized thereon at least one polyelectrolyte reactant (24'), such as polyacrylic acid, capable of reacting with blood (30), the reaction resulting in an optical change. The system includes the device according to the invention in which the support is in communication with a detecting unit, capable of detecting a reaction resulting in an optical change between the polyelectrolyte (24') and blood (30). The support and immobilized reactant (24') are contacted in vitro with a sample (30) which possibly contains blood. The reaction occurring between the reactant (24') and blood (30) is detected, either while the substrate is in the sample (30) or when it is retrieved from the sample (30), either by eye or by the detecting unit.