Gas flow cartridge with improved coagulation detection and expan

Details Gas flow cartridge with improved coagulation detection and expan Gas flow cartridge with improved coagulation detection and expan

1982-10-15

1985-08-13

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

422101, 422 73, 73 641, 436 69, G01N 3348

Patent

active

045349398

ABSTRACT:
A gas flow cartridge includes a tube-like member which defines a reaction chamber in which a pool of liquid is subjected to an analytical test. A coating of debubbling agent is applied to an area of the tube-like member above the reaction chamber. The debubbling agent collapses bubbles of noncoagulated fluid but allows bubbles of coagulated fluid to continue an upward movement above the area where the coating is applied. Coagulation is detected by sensing the coagulated bubbles moving upward in the tube-like member. A quantity of activator agent is initially confined with the reaction chamber, preferably within a structure defined by a segment of paper-like material formed into an activator retaining form. The paper-like material unrolls or unfolds during the analytical test.

REFERENCES:
patent: 3775339 (1973-11-01), Kasulin et al.
patent: 4058367 (1977-11-01), Gilford
patent: 4074971 (1978-02-01), Braun et al.
patent: 4332264 (1982-06-01), Gortz et al.

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