Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals
Patent
1995-03-06
1997-07-29
Chin, Christopher L.
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
422 55, 422 57, 422 58, 422 681, 422 73, 422 8205, 4352071, 4352072, 4352073, 4352884, 4352887, 435808, 435810, 435970, 435973, 436165, 436514, 436523, 436531, 436533, 436534, 436535, 436809, G01N 33543, G01N 33546, G01N 33558
Patent
active
056521499
ABSTRACT:
An assay device for detecting the presence of analytes in an unknown sample includes a reaction system wherein resilient storage reservoirs containing reagents are fluidly connected to a track containing the sample. An actuation mechanism forces the reagent from each of the reservoirs into the track where the reagents mix together and with the sample. The mechanism produces a first flow rate and the mechanism is operable to reverse the pressure applied to the reservoirs to reverse the direction of flow of the fluids in the track for a predetermined period of time after which the flow is again reversed. The mechanism then reduces the force applied to allow a second flow rate less than the first flow rate so that reaction can occur whereby a determination may be made as to whether the target analyte is present in the sample.
REFERENCES:
patent: 4918025 (1990-04-01), Grenner
patent: 5154888 (1992-10-01), Zander et al.
patent: 5254479 (1993-10-01), Chemelli
Mileaf Daryl S.
Rodgriguez, II Noe E.
Chin Christopher L.
Westinghouse Electric Corporation
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