Sensor laminates and multi-sectioned fluid delivery devices for detecting by immunoassay target molecules in biological fluids

摘要

The present invention relates to a multi-sectioned liquid delivery device (6) and a treatment dock for use in assaying a target molecule. The multi-sectioned liquid delivery device (6) takes the form of a hollow syringe (9), the interior of which is provided with multiple individual compartments (8) which separately store various liquids. The device has a piercing element (7) located at one end, and a nozzle (10) and valve (11) at the other. In use, liquid or gas enters the syringe via the nozzle (10) and valve (11) thereby urging a first slidable piston (12) towards the compartments (8) which themselves are urged towards a second slidable piston (13), the second piston and compartments are pierced by the piercing element (7); thereby enabling sequential release of the stored liquids to a sensor laminate (1) positioned in the treatment dock.