Dispensing – Processes of dispensing
Patent
1991-04-30
1993-05-18
Huson, Gregory L.
Dispensing
Processes of dispensing
222 82, 222167, 2224008, 222401, 422 67, 422100, B65G 5900
Patent
active
052113108
ABSTRACT:
A disposable apparatus to dispense an amount of liquid from a closed container such as a stoppered blood collection tube is described. The apparatus comprises a stopper piercing element to access the interior of a closed blood collection tube; a gas passage to allow a metered amount of gas to be forced into the blood collection tube; and, a liquid passage to allow fluid to be dispensed from the tube in proportion to the amount of gas forced into the tube. Also described is a machine which uses a disposable apparatus to dispense liquid from a sequence of closed blood collection tubes in a automated manner. Liquid contained within a blood collection tube is dispensed from the tube by a control system according to signals indicative of the amount of liquid that is desired to be dispensed. A manually operated machine that uses the disposable apparatus to dispense a sample of liquid from a closed blood collection tube is also described.
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Godolphin William J.
Killam Geoffrey T.
Pires David P.
Specht Winona C.
Andronic Devices Ltd.
Huson Gregory L.
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