Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1990-12-13
1992-10-27
Kummert, Lynn M.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
7386373, 7386412, 251355, G01N 120
Patent
active
051587513
ABSTRACT:
A liquid metering and transfer valve assembly having the capability of metering, isolating, transfering and delivering precise microliter volume aliquots of a blood sample, from a source thereof, to mixing and testing chambers of an electronic blood analysis system for analysis, and further, carrying a loop for metering and isolating an additional sample aliquot within the valve assembly in the loop, a first dedicated passageway for introducing a first fluid to the loop to force the additional aliquot from its isolated location to a first dedicated portion of the valve assembly displaced from the loop and a second dedicated portion of the valve assembly to establish a flow path for introducing a lysing reagent to the first dedicated portion to force the additional aliquot from its displaced disposition, as a lyse reagent/aliquot mixture, to a selected additional mixing and testing chamber exterior of the valve assembly without contaminating any interior flow path traversed by a blood sample and associated diluent thereof within the valve assembly.
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Cabrera Pedro P.
del Valle Roberto
Vargas Santos E.
Coulter Corporation
Fox Sidney N.
Hibnick Gerald R.
Kummert Lynn M.
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