Method and apparatus for improving clinical accuracy of analyte measurements
First Claim
1. A blood glucose detection system comprising a processing circuit which:
- identifies possible zone D errors among estimated blood glucose concentration values; and
converts those of said estimated blood glucose concentration values which are identified as possible zone D errors, into adjusted blood glucose concentration values which are lower in blood glucose concentration magnitude than their corresponding estimated blood glucose concentration values, thereby decreasing the occurrence of zone D errors.
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Accused Products
Abstract
Herein is described a system that includes a processing circuit for identifying possible zone D errors among estimated blood glucose concentration values. The system converts estimated blood glucose concentration values which are identified as possible zone D errors into adjusted blood glucose concentration values which are lower in blood glucose concentration magnitude than their corresponding estimated blood glucose concentration values, thereby decreasing the occurrence of zone D errors. Herein is also disclosed a method for improving the clinical accuracy of an analyte concentration measurement. One method includes a first act of computing an estimated analyte concentration having an associated first error that is clinically significant and a second act of processing the estimated analyte concentration to generate an adjusted analyte concentration having a second error that is clinically insignificant.
238 Citations
106 Claims
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1. A blood glucose detection system comprising a processing circuit which:
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identifies possible zone D errors among estimated blood glucose concentration values; and
converts those of said estimated blood glucose concentration values which are identified as possible zone D errors, into adjusted blood glucose concentration values which are lower in blood glucose concentration magnitude than their corresponding estimated blood glucose concentration values, thereby decreasing the occurrence of zone D errors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A blood glucose detection system for reducing occurrences of measurement errors that exceed a threshold value of clinical significance, the system having an associated error band, the system comprising:
a processor that converts an estimated blood glucose concentration value of at least the threshold value and less than the sum of the threshold value and the error band into an adjusted blood glucose concentration value that is below the border between zones D and A of the Clarke error grid. - View Dependent Claims (12, 13, 14, 15)
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16. An analyte detection system comprising:
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a processing circuit; and
a module executable by the processing circuit whereby the processing circuit receives an estimated analyte concentration having an associated first error that is clinically significant, and the processing circuit applies a transfer function to the estimated analyte concentration to generate an adjusted analyte concentration having a second error that is clinically insignificant. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. An apparatus for providing an adjusted analyte concentration, wherein reporting an analyte concentration having a value below a threshold value of clinical significance causes a first course of treatment and reporting an analyte concentration having a value above the threshold value of clinical significance causes a second course of treatment, the apparatus comprising:
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a processing circuit that receives an estimated analyte concentration and applies a transfer function to the estimated analyte concentration to provide an adjusted analyte concentration;
wherein the adjusted analyte concentration differs from the estimated analyte concentration when the estimated analyte concentration is in the proximity of the threshold value of clinical significance. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. An apparatus for improving the clinical accuracy of an analyte concentration measurement, the apparatus comprising:
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detection means for obtaining the analyte concentration measurement;
processor means for adjusting the measurement to avoid reporting erroneous measurements that are clinically significant.
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64. A system for determining an analyte concentration, said system comprising a processing circuit which:
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computes a first analyte concentration measurement value accurate within a first error band of said system;
determines whether said first analyte concentration measurement value is greater than or equal to a threshold value of clinical significance and less than the sum of said threshold value and said first error band; and
computes a second analyte concentration measurement value when said first analyte concentration measurement value is greater than or equal to said threshold value of clinical significance and less than the sum of said threshold value and said first error band, wherein said second analyte concentration is accurate within a second error band of said system. - View Dependent Claims (65, 66, 67)
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68. A method for improving the clinical accuracy of an analyte concentration measurement, the method comprising:
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computing an estimated analyte concentration having an associated first error that is clinically significant; and
processing the estimated analyte concentration to generate an adjusted analyte concentration having a second error that is clinically insignificant. - View Dependent Claims (69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106)
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Specification