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US 4,301,412 AGranted
Liquid conductivity measuring system and sample cards therefor
AssigneeUnited States Surgical Corporation
InventorsJeremy R. Hill, Allen E. Meyer
Life of this patent
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AssigneeUnited States Surgical Corporation
InventorsJeremy R. Hill, Allen E. Meyer
Estimating the term…
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.
A system for measuring temperature-dependent parameters of a liquid sample, said system comprising:
Apparatus for measuring parameters of a liquid sample contained in a liquid sample carrier having a guide member and a registration member, said apparatus comprising:
A system for measuring parameters of a liquid sample, said system comprising a liquid sample carrier and a measuring apparatus,
Dependencies are inferred from the claim text.