Control solution for a blood glucose monitor
AssigneeLifeScan, Inc.
InventorsSaker A. Karimi, Geoffrey McGarraugh, Yeung S. Yu
Life of this patent
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Abstract
A control solution for use with a photometric blood glucose strip contains glucose in an aqueous suspension of carbon black. The control solution mimics blood when applied to a whole blood glucose test strip, which is then inserted into a meter. A meter reading within a predetermined range indicates that meter and strip are operating satisfactorily. Preferably the control solution is buffered to a neutral pH and includes chloride ion to provide a stable end point for the glucose reaction. Depending on the glucose concentration, the solution checks meter and strip operation at high, low, and normal blood glucose levels.
Claims16
The control solution that mimics whole blood for use with a photometric blood glucose strip, which comprises a suspension of opaque iron oxide or carbon water, a dispersant to keep the particles in suspension, and a predetermined concentration of glucose.
Dependencies are inferred from the claim text.