Apparatus for and method of assuring the quality of the results

Package making – Methods – With contents treating

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53449, 53470, B65B 316, B65B 714, B65B 3102

Patent

active

043757430

ABSTRACT:
Disclosed is an apparatus for a method for assuring the quality of the results obtained from a blood gas analyzer. The apparatus comprises a device for storing blood gas quality control reagent comprising a first variable volume, gas impermeable container for receiving the reagent. The reagent is stored exclusively in the liquid phase therein. A valved exit passageway emanates from the container which container is situated in a second container surrounding the first, a space being present therebetween and a compressed gas situated in the space. Upon opening the valve, the compressed gas decreases the volume of the first container and reagent is expelled through the exit passageway. The present device is uneffected by changes in ambient temperature since the reagent is stored exclusively in the liquid phase. The device is reusable since a portion of the reagent may be expelled without contamination of the remaining contents. Further, a method is disclosed for storing blood gas quality control reagent such that it is stored exclusively in a liquid phase.

REFERENCES:
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patent: 2715489 (1955-08-01), Kazmierczak et al.
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patent: 3520337 (1970-07-01), Irland et al.
patent: 3775015 (1973-11-01), Tsunoda et al.
patent: 3791098 (1974-02-01), Webster
patent: 3905517 (1975-09-01), Friedrich et al.
patent: 4116336 (1978-09-01), Sorensen et al.

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