Vacuum blood sample collecting device

Details Vacuum blood sample collecting device Vacuum blood sample collecting device

1989-05-15

1991-07-30

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422112, 604319, 604320, 604119, 604146, G05D 1600, A61M 100

Patent

active

050358650

ABSTRACT:
A blood sample collecting device includes a vacuum blood sampling chamber having a blood container disposed therein, and a vacuum pump for evacuating the vacuum blood sampling chamber to collect a blood sample into the blood container under a vacuum developed in the vacuum blood sampling chamber. The amount of collected blood in the blood container, and the vacuum in the vacuum blood sampling chamber is lowered below a preset pressure on the condition that a rate of increase in the measured amount of collected blood does not reach a predetermined normal rate of increase.

REFERENCES:
patent: 3098480 (1960-11-01), Worthington
patent: 4127111 (1978-11-01), Drolet
patent: 4184510 (1980-01-01), Murry et al.
patent: 4231366 (1980-11-01), Schael
patent: 4648385 (1987-03-01), Oumi et al.
patent: 4795448 (1989-01-01), Stacey et al.
patent: 4888003 (1989-12-01), Johnson et al.

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