| 摘要 |
<p>Blood collecting unit comprising a tube (main tube), said main tube having at one end thereof a cannula to be inserted into the vein of a blood donor and having at its other end a vessel for collecting blood from the donor. The characteristic feature is that the main tube has a bifurcation situated between the cannula and vessel and provided with a second tube, so-called secondary tube, which (a) at its outer end provides means for collecting minor amounts of blood (blood samples) and (b) is equipped with a device preventing liquid flow through the secondary tube and constructed in such a manner that it can be opened up by being acted upon externally, so that then liquid is enabled to flow through the secondary tube.</p> |
