Sample metering port for analytical rotor having overflow chamber
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United States of America Patent
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-
Sep 7, 1993
Issued Date -
N/A
app pub date -
Oct 29, 1991
filing date -
Jun 4, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An analytical rotor for separating plasma whole blood comprises a rotor body having a sample application port in an upper surface thereof. Blood introduced to the sample application port is metered into a metering chamber by capillary flow while the rotor remains stationary. Excess blood passes into an overflow chamber by capillary flow, either simultaneously with the metered flow or after opening of a vent in the overflow chamber. Subsequent rotation of the rotor causes metered blood in the metering chamber to flow into a receiving chamber, typically a plasma separation chamber.
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