Liquid conductivity measuring system and sample cards therefor
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United States of America Patent
Stats
-
Nov 17, 1981
Grant Date -
N/A
app pub date -
Oct 29, 1979
filing date -
Oct 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for measuring a parameter of a liquid sample, such as the hematocrit and an approximation of hemoglobin for a blood sample. The system basically comprises a hand-held instrument and a disposable sample card. The instrument accepts the disposable sample card, which is used for the one-time conveyance and application of a liquid sample, such as blood, to the instrument. The instrument has provision for digital displays for readouts. The disposable sample card is a micro-volume conductivity cell precision molded from plastic with built-in stainless steel electrodes. The instrument basically comprises an electronic portion for processing data obtained from the liquid sample on the sample card, a front-end mechanism for positioning the sample card within the instrument, and a digital display for displaying in eye-readable form the results of a parameter measurement made in the instrument.
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