A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/83
A61M 5/00 (2006.01) A61B 5/15 (2006.01) B01L 3/14 (2006.01) B65D 51/00 (2006.01)
Patent
CA 1113817
ONE-WAY EVACUATED TUBE STOPPER ABSTRACT OF THE DISCLOSURE A stopper for an evacuated tube with an open end for collecting fluid such as blood samples. The stopper includes a plug adapted to be mounted in the opening in the tube so as to normally seal the tube. The plug permits access of a fluid sample needle therethrough into fluid communication with the reduced pressure interior of the tube so that fluid is collected in the tube from the needle. A check valve is on the plug to automatic- ally open when the needle is inserted through the plug and sub- jected to the reduced pressure in the tube and to automatically close when subjected to a predetermined amount of pressure from within the tube such as that caused by backflow thereby prevent- ing any fluid passing into the needle from the tube. The check valve includes a chamber which can be used as a reagent holder prior to tube use.
301642
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
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