Self-contained, safety blood collection system

Details Self-contained, safety blood collection system Self-contained, safety blood collection system

1989-12-29

1991-10-01

Hindenburg, Max

Surgery

Truss

Pad

A61B 500

Patent

active

050524038

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.

REFERENCES:
patent: 3577980 (1971-05-01), Cohen
patent: 3753432 (1973-08-01), Guerra
patent: 4890627 (1990-01-01), Haber et al.
patent: 4900310 (1990-02-01), Ogle

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