A specimen collecting, processing and analytical assembly, designed for testing small volumes of body fluids, substances and secretions, said assembly comprising a one piece barrel assembly with a volumetrically graduated capillary tube having an open end, and optionally coated internally with an anticoagulant,...http://www.google.fr/patents/US7378054?utm_source=gb-gplus-shareBrevet US7378054 - Specimen collecting, processing and analytical assembly
Specimen collecting, processing and analytical assembly