Method and system for investigating glucose metabolism
First Claim
1. A method for investigating a glucose metabolism of a human being for particularities, the method comprising:
- measuring, using a sensor, a glucose concentration g(t1) to g(tn) of a body fluid at time points t1 to tn that are distributed over a period of at least six hours and are consecutive with time intervals of less than 10 minutes;
determining, using a microprocessor, data points in phase space coordinates from the glucose concentration g(t1) to g(tn); and
processing, using the microprocessor, the data points to identify particularities of the glucose metabolism of the investigated human being;
wherein the processing step includes performing a statistical analysis of the data points situated within a phase space boundary of a predetermined size having at least two dimensions to determine a disturbance parameter that indicates a severity of a disturbance of glucose metabolism and indicates a stage of a disease of glucose metabolism.
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Abstract
The invention relates to a method for investigating the glucose metabolism of a human being for disease-relevant and/or disease-related particularities. The glucose concentration g(t1) to g(tn) of a body fluid is measured at time points t1 to tn that are distributed over a period of at least six hours. The data points are then determined in phase space coordinates from the glucose concentration measuring values g(t1) to g(tn). The data points are then processed to highlight disease-relevant and/or disease-related particularities of the glucose metabolism of the investigated human being. The processing of the data points can be implemented by plotting them in a phase space representation or by determining from the data points a disturbance parameter that is correlated to the severity of a disturbance of glucose metabolism.
8 Citations
30 Claims
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1. A method for investigating a glucose metabolism of a human being for particularities, the method comprising:
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measuring, using a sensor, a glucose concentration g(t1) to g(tn) of a body fluid at time points t1 to tn that are distributed over a period of at least six hours and are consecutive with time intervals of less than 10 minutes; determining, using a microprocessor, data points in phase space coordinates from the glucose concentration g(t1) to g(tn); and processing, using the microprocessor, the data points to identify particularities of the glucose metabolism of the investigated human being; wherein the processing step includes performing a statistical analysis of the data points situated within a phase space boundary of a predetermined size having at least two dimensions to determine a disturbance parameter that indicates a severity of a disturbance of glucose metabolism and indicates a stage of a disease of glucose metabolism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26, 27, 28, 29, 30)
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19. A system for investigating a glucose metabolism of a human being for particularities, the system comprising:
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means for measuring a blood glucose concentration g(t1) to g(tn) at time points t1 to tn that are distributed over a period of at least four hours; and means for determining data points in phase space coordinates from the glucose concentration g(t1) to g(tn); wherein the determining means is used to process the data points to identify a boundary having at least two dimensions in phase space having the data points therein which corresponds to a particularity of the glucose metabolism of the investigated human being and indicates a stage of a disease of glucose metabolism. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method for investigating a glucose metabolism of a human being for particularities, the method comprising:
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measuring, using a sensor, a glucose concentration g(t1) to g(tn) of a body fluid at time points t1 to tn that are distributed over a period of at least six hours and are consecutive with time intervals of less than 10 minutes; determining, using a microprocessor, data points in phase space coordinates from the glucose concentration g(t1) to g(tn); and processing, using the microprocessor, the data points to identify particularities of the glucose metabolism of the investigated human being; wherein the processing step includes performing a statistical analysis of the data points to determine a disturbance parameter that indicates a severity of a disturbance of glucose metabolism, the disturbance parameter being determined from a curvature of a loop of a trajectory in phase space described by a sequence of data points, the loop being approximated by an ellipse having main axes, and wherein the disturbance parameter is determined from the curvature of the loop by determining a ratio of the axes.
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Specification