Abstract: Embodiments of a container for holding an item are disclosed. In one embodiment, the container comprises an open end, a closed end and a shank connecting the open end with the closed end. A flange extends from the open end. The flange has a configuration which supports the container in an intended relationship with respect to a relatively large tube, a relatively small tube or a carrier.

Abstract: Disclosed is a fluid collection device wherein multiple, individual, samples of fluid can be withdrawn simultaneously. The device includes an evacuated chamber and an adapter which substantially simultaneously distributes the blood to each individual chamber.

Abstract: The present invention provides a diagnostic flow cell for determining the presence or amount of an analyte which may be contained in a test sample. The flow cell comprises a spacing layer having a longitudinal void disposed between a pair of opposed substrates. The spacing layer and the opposed substrates define a flow channel wherein reagent means can be immobilized. When the immobilized reagent means is contacted with an analyte, the reagent means can produce an electrically, optically, or electrically and optically detectable response to the analyte. Hence, the reagent means that is immobilized within the flow channel can comprise (i) a counter electrode, a reference electrode and a working electrode, (ii) an optically sensitive dye or (iii) a counter electrode, a reference electrode and a working electrode and an optically sensitive dye.