Blood plasma test device including a semipermeable membrane made of an expanded hydrophobic material that has been treated with a surfactant

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United States of America Patent

PATENT NO 5130231
SERIAL NO

07364893

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Abstract

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Single or multiple blood plasma component concentrations are measured by a disposable stick having one or more blood plasma component reactive areas covered by a semipermeable membrane which is permeable by blood plasma or serum components and impermeable by blood cellular and particulate matter. A second overlay may be superposed with the semipermeable membrane over the reactive areas to receive a blood sample and meter and distribute that sample uniformly to the semipermeable membrane which in turn passes the plasma components uniformly to the reactive areas. The overlays are subsequently separable from the reactive area to remove the cellular components and particulate matter and expose the reactive areas for inspection by, for example, color comparison to standardized charts.

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Patent Owner(s)

Patent OwnerAddress
CHEM-ELEC INCNORTH WEBSTER IN 46555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adams, Ernest C North Webster, IN 5 236
Kennedy, Paul R Warsaw, IN 8 262
Woenke, William E Pierceton, IN 1 112

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