Automated system for continuously and automatically calibrating electrochemical sensors
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Abstract
An electrochemical sensor system that continuously monitors and calibrates the sensors included in the system. The invention also includes a method for determining failure patterns of a sensor and incorporating into an electrochemical sensor system the ability to recognize the failure pattern and initiate remedial action.
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Citations
34 Claims
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1-16. -16. (canceled)
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17. A method for monitoring sensor system performance for an in vitro diagnostic test on a patient sample, comprising:
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(a) exposing a plurality of sensors to an internal reference solution comprising a plurality of analytes each having a known concentration;
(b) determining at least one response of each of the plurality of sensors to the internal reference solution;
(c) comparing the response of at least two sensors;
(d) identifying a response pattern of the at least two sensors in step (c); and
(e) comparing the response pattern identified in step (d) to a failure pattern in a stored set of known failure patterns to identify the failure pattern of the sensor system. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method for performing quality control on a sensor, the method comprising the steps of:
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(a) implementing a first calibration protocol for the sensor using an internal reference solution;
(b) analyzing a performance characteristic of the sensor for the first calibration protocol;
(c) comparing the performance characteristic of the sensor to a predetermined performance characteristic; and
(d) changing the first calibration protocol to a second calibration protocol based on the comparison in step (c) if the performance characteristic of the sensor is not substantially similar to the predetermined performance characteristic. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification