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US 6,123,827 AGranted
Method for calibrating sensors used in diagnostic testing
AssigneeVia Medical Corporation
InventorsDavid K. Wong, David Buse, Laurel Savage, Daiting Rong
Life of this patent
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AssigneeVia Medical Corporation
InventorsDavid K. Wong, David Buse, Laurel Savage, Daiting Rong
Estimating the term…
A method is disclosed for reliably calibrating a sensor used in diagnostic sensing of a predetermined parameter, e.g., CO.sub.2 partial pressure, O.sub.2 partial pressure, or pH, of a solution such as blood, the method compensating for expected variations over time in the value of the parameter in a calibration solution. The parameter of the calibration solution has a predetermined initial value, and the solution is initially located within a container that is configured to allow the value of that parameter to vary over time in a predetermined manner. Supplying the calibration solution to the sensor causes the sensor to produce a calibration solution signal, which is compared with a calculated value for the parameter based on its expected variation over time, to produce a calibration factor. Thereafter supplying the test fluid to the sensor causes the sensor produces a test fluid signal, and this test fluid signal then is adjusted in accordance with the calibration factor.
A method for calibrating a sensor of a kind that measures a predetermined parameter of a test fluid, comprising:
A method for calibrating a sensor of a kind that measures a predetermined parameter of a patient's blood, comprising:
Dependencies are inferred from the claim text.