Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Patent
1996-06-20
1998-11-24
Smith, Lynette F.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
422100, 422101, 422104, 494 41, 494 38, 494 64, 494 16, G01N 2100, B01L 302, B01L 1100, B01L 900
Patent
active
058402535
ABSTRACT:
An apparatus and method are disclosed to wash blood cells in a discrete manner that is compatible with automated sample preparation systems. The test tube containing the cells to be washed is mounted on a rotatable spindle. The spindle includes central passageways for the introduction of wash fluid and air into the test tube, and radial exit passageways at the bottom of the spindle. The test tube is first spun about its vertical axis to centrifuge cells against the inner wall of the test tube. A vacuum is then applied to the exit passageways so cell supernatant is aspirated out through the exit passageways. Wash fluid is then introduced into the test tube, and aspirated out through the exit passageways, thereby washing the cells. Rotational acceleration and deceleration of the test tube then resuspends the cells in wash fluid.
REFERENCES:
patent: 4058252 (1977-11-01), Williams
patent: 5215376 (1993-06-01), Schulte et al.
Chase Eric
North Howard L.
Schulte Harvey
Cytek Development Inc
Hillman James P.
Nelson Brett
Smith Lynette F.
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