Devices are provided for analyzing a fluid cell containing sample. The devices comprise a solid substrate, microfabricated to define at least one sample inlet port and a mesoscale flow system. The mesoscale flow system includes a sample flow channel, extending from the inlet port, and a cell handling...http://www.google.fr/patents/US5304487?utm_source=gb-gplus-shareBrevet US5304487 - Fluid handling in mesoscale analytical devices