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US 12,270,780 B2Granted
Systems and methods for electrochemical hematocrit determination by alternate current impedance phase angle determinations
AssigneePolymer Technology Systems, Inc.
InventorsGary L. Hughes, Ryan D. Jesswein
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Abstract
A system for determining a level of hematocrit includes a test strip configured to receive a sample; a meter configured to receive the test strip; and further including circuitry and a microprocessor, the circuitry and microprocessor configured to apply electrical energy to the test strip and the sample and determine an electrical property of the sample, either the impedance phase angle or the impendence magnitude of the test strip and the sample and, based on the electrical property, calculate the level of hematocrit in the sample.
Claims10
A method for determining a level of hematocrit, comprising:
- providing a system, the system including:
- a test strip configured to receive a sample;
- a meter configured to receive the test strip and further including circuitry and a microprocessor, the circuitry and microprocessor configured to apply electrical energy to the test strip and the sample and determine an impedance phase angle of the test strip;
- receiving a sample at the test strip and inserting the test strip into the meter;
- applying a current to the test strip from the meter;
- determining a phase angle for the sample using the circuitry and microprocessor;
- calculating the level of hematocrit in the sample at the meter based on an amount of glucose in the sample that affects an impedance magnitude and the impedance phase angle at a different rate than the level of hematocrit, a level of glucose and the level of hematocrit;
- and
- providing an output of the level of hematocrit to a user.
6 more elements
Dependencies are inferred from the claim text.