Disposable cartridge for sampling and analyzing body fluids

Details Disposable cartridge for sampling and analyzing body fluids Disposable cartridge for sampling and analyzing body fluids

G - Physics

01

N

G01N 33/50 (2006.01) A61B 5/15 (2006.01) A61B 5/155 (2006.01) A61J 1/06 (2006.01) B01L 3/14 (2006.01)

Patent

CA 2055705

DISPOSABLE CARTRIDGE FOR SAMPLING AND ANALYZING BODY FLUIDS Abstract of the Disclosure A disposable sampling cartridge for use with a blood sample analyzer. The cartridge includes a blood reservoir communicating with a hypodermic needle, a waste collection chamber adapted to receive waste fluids from the blood sample analyzer, and a plurality of ampules each containing a respective analyzing fluid adapted for use by the blood sample analyzer. Each of the ampules contain a piston, and the analyzing fluids in the ampules are expelled by forcing an actuating rod through a frangible wall of the ampule to displace the piston. In one embodiment, the analyzing fluids are withdrawn through a conduit in the actuating rod while the blood and spent analyzing fluids flow through the blood reservoir port on which the hypodermic needle is mounted.. In another embodiment the waste fluid flows through an inlet port while the analyzing fluids from the ampules flow through a common port outlet port which selectively communicates with the blood reservoir and the ampules by a valve arrangement.

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