Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Patent
1996-07-30
1998-08-04
Le, Long V.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
422 58, 422 67, 422 81, 422 8205, 422100, 422103, 436 43, 436164, 436165, 436174, 436180, G01N 3510, G01N 2101
Patent
active
057889279
ABSTRACT:
A unified fluid cell circuit assembly for an analytical instrument, such as a clinical hematology, immunoassy or chemistry or a flow cytometry instrument. The assembly includes a unified fluid circuit, a shear valve, a fluid pump assembly, and a plurality of solenoid valves. The unified fluid circuit is made of a plurality of acrylic plates which have formed in the various plate surfaces chamber cavities, pneumatic, hydraulic and vent line, and valve cavities. The plates, when secured together, form a plurality of reaction chambers, a plurality of control valves and various lines as a network for controlling the flow and mixing of aliquots of a sample and fluids (rinse, reagents, etc.) to perform the reactions for analyzing the sample. The fluid pump assembly is connected to the unified flow circuit and has a plurality of diaphragm pumps which pump precise volumes of fluids. The solenoid valves provide the pressure and vacuum to operate the pumps and to provide a sample into the shear valve to form sample aliquots, and to mix the various aliquots with the reagents and diluents to form the reaction mixtures.
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Behringer Bruce E.
Carlucci Joseph
Cremins John
Farrell Gregory A.
Mawhirt James
Bayer Corporation
Le Long V.
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