Self-contained, safety blood collection system
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United States of America Patent
Stats
-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Dec 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-contained, safety blood collection system comprising a shatter-resistent blood collection tube in which a vacuum may be manually established and in which a blood sample, or the like, may be collected by way of a retractable, single ended needle cannula. A piston is relocated from an as-packaged, distal position within the blood collection tube to a proximal position so as to evacuate the tube, whereby the tube is automatically infused with blood under the influence of suction. A controllable fluid valve is formed in an elastomeric stopper, and the stopper is located within the distal end of the blood collection tube, such that the volume and rate at which blood is collected within the tube can be selectively varied. An auxiliary fluid port is formed in the stopper through which successive blood samples may be collected in additional blood collection systems from the same veni puncture.
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