Analytic test device

Details Analytic test device Analytic test device

1974-12-19

1976-09-14

Yudkoff, Norman

Chemistry: physical processes

Physical processes

Crystallization

23253TP, 23259, 128 2F, G01N 3122, G01N 110, A61B 110

Patent

active

039804364

ABSTRACT:
An analytic test device of a one time use type formed by concentrically disposed tube and sleeve members. A test reagent is present in the annular region between tube and sleeve. A liquid sample placed inside the tube is unable to enter the reagent containing annular region until relative movement between tube and sleeve opens a passage for sample flow into the annular region and contact with the test reagent.
The test device is particularly adapted to testing urine samples.

REFERENCES:
patent: 2643940 (1953-06-01), Stevens
patent: 2667075 (1954-01-01), Blum et al.
patent: 3705012 (1972-12-01), Marmor et al.
patent: 3774455 (1973-11-01), Seidler et al.

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