Laminated assay device

Details Laminated assay device Laminated assay device

1993-09-28

1995-04-25

Redding, David A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 58, 436 71, 436170, 436178, 436805, 436810, 435 11, 435 19, 435 28, 435805, 435970, G01N 2175, G01N 3392

Patent

active

054096642

ABSTRACT:
A laminated assay device for use in determining the presence or amount of an analyte in a sample involving a bibulous assay strip having a sample application zone, a reagent zone and a pair of liquid impervious barriers defining a measurement zone extending from and in fluid communication with the application zone. The measurement zone has a volume measuring the amount of sample required for the assay. A substantially nonabsorbent first supporting film extends across and is laminated to the front surface of the assay strip, while a substantially nonabsorbent second supporting film extends across and is laminated to the back surface of the assay strip. The assay strip is impregnated with the members of a signal producing system which, upon reaction with a component in the sample, produce a detectable signal.

REFERENCES:
patent: 4973549 (1990-11-01), Khanna et al.
patent: 4987085 (1991-01-01), Allen et al.
patent: 4999287 (1991-03-01), Allen et al.
patent: 5132086 (1992-01-01), Allen et al.
patent: 5215886 (1993-06-01), Patel et al.
patent: 5234813 (1993-08-01), McGeehan et al.

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