Automated system for continuously and automatically calibrating electrochemical sensors
First Claim
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1. A method for automatic monitoring of an electrochemical sensor system comprising:
- (i) providing an electrochemical sensor system comprising at least one electrochemical sensor;
(ii) analyzing an analyte comprising a known concentration in a first reference solution to determine a first measurement of said known concentration of said analyte in said first reference solution;
(iii) analyzing said analyte in said first reference solution to determine a second measurement of said known concentration of said analyte in said first reference solution;
(iv) comparing said known concentration, said first measurement of said known concentration and said second measurement of said known concentration of said analyte in said first reference solution; and
(v) automatically initiating corrective action if said first measurement of said analyte is substantially similar to said second measurement of said analyte and said first and said second measurements are substantially dissimilar to said known concentration of said analyte in said first reference solution.
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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
16 Claims
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1. A method for automatic monitoring of an electrochemical sensor system comprising:
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(i) providing an electrochemical sensor system comprising at least one electrochemical sensor;
(ii) analyzing an analyte comprising a known concentration in a first reference solution to determine a first measurement of said known concentration of said analyte in said first reference solution;
(iii) analyzing said analyte in said first reference solution to determine a second measurement of said known concentration of said analyte in said first reference solution;
(iv) comparing said known concentration, said first measurement of said known concentration and said second measurement of said known concentration of said analyte in said first reference solution; and
(v) automatically initiating corrective action if said first measurement of said analyte is substantially similar to said second measurement of said analyte and said first and said second measurements are substantially dissimilar to said known concentration of said analyte in said first reference solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for automatic monitoring of an electrochemical sensor system for measuring an analyte in a fluid sample comprising:
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(i) providing an electrochemical sensor system comprising at least one electrochemical sensor;
(ii) analyzing an analyte comprising a known concentration in a first reference solution to determine a first measurement of said known concentration of said analyte;
(iii) analyzing said analyte in said first reference solution to determine a second measurement of said known concentration of said analyte;
(iv) comparing said known concentration, first measurement of said known concentration and second measurement of said known concentration; and
(v) measuring said analyte concentration in said fluid sample if said first measurement of said known concentration of said analyte in said first reference solution and said second measurement of said known concentration of said analyte in said first reference solution are sufficiently dissimilar and said second measurement of said known concentration of said first reference solution is sufficiently similar to said known concentration of said reference solution.
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11. An electrochemical sensor system comprising:
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(a) a first reference solution comprising a known concentration of at least one analyte;
(b) an electrochemical sensor analyzing said analyte to determine a first measurement and a second measurement of said known concentration of said analyte;
(c) a comparator comparing said known concentration, said first measurement of said known concentration, and said second measurement of said known concentration of said analyte; and
(d) a corrective action device initiating corrective action if said first measurement of said analyte in said first reference solution is substantially similar to said second measurement of said analyte in said first reference solution and said first and said second measurements are substantially dissimilar to said known concentration of said analyte in said first reference solution.
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16. An electrochemical sensor system comprising:
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(i) means for analyzing an analyte comprising a known concentration in a first reference solution to determine a first measurement of said known concentration of said analyte in said first reference solution;
(iii) means for analyzing said analyte in said first reference solution to determine a second measurement of said known concentration of said analyte in said first reference solution;
(iv) means for comparing said known concentration, said first measurement of said known concentration and said second measurement of said known concentration of said analyte in said first reference solution; and
(v) means for automatically initiating corrective action if said first measurement of said analyte is substantially similar to said second measurement of said analyte and said first and said second measurements are substantially dissimilar to said known concentration of said analyte in said first reference solution. - View Dependent Claims (12, 13, 14, 15)
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Specification