Method and device for monitoring an analyte concentration in the living body of a human or animal
First Claim
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1. A method for continuous monitoring of an analyte concentration in the living body of a human or animal, the method comprising:
- determining an analyte values y(tn) correlating with the concentration of the analyte for consecutive points in time tn;
calculating a prediction value y(tn0+Δ
t) over a prediction period Δ
t based on the analyte value y(tn) using the following equation;
y(tn0+Δ
t)=F(tn0, tn0−
Δ
n, . . . , t(n0−
(m−
2)Δ
n), t(n0−
(m−
1)Δ
n)); and
generating a warning signal if the prediction value y(tn0+Δ
t) deviates from a predetermined value by more than a threshold value,wherein function F(tk, tk−
Δ
n, tk−
2Δ
n, . . . , tk−
(m−
2)Δ
n, tk−
(m−
1)Δ
n) depends on the analyte values y(tk), y(tk−
Δ
n), y(tk−
2Δ
n), . . . , y(tk−
(m−
2)Δ
n), y(tk−
(m−
1)Δ
n) and the function F is used to approximate the progression of the analyte values y(tn) at time tn0 in vicinity U of an analyte value y(tn0) with a pre-determined accuracy σ
, such that
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Abstract
The present invention generally relates to a method and a device for monitoring an analyte concentration in the living body of a human or animal. In particular to a method and device for determining analyte values y(tn) correlating with the concentration to be determined are determined for consecutive points in time tn. The analyte values y(tn) is used to predict a prediction value for an analyte y(tn0+Δt) over a prediction period Δt.
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Citations
15 Claims
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1. A method for continuous monitoring of an analyte concentration in the living body of a human or animal, the method comprising:
-
determining an analyte values y(tn) correlating with the concentration of the analyte for consecutive points in time tn; calculating a prediction value y(tn0+Δ
t) over a prediction period Δ
t based on the analyte value y(tn) using the following equation;
y(tn0+Δ
t)=F(tn0, tn0−
Δ
n, . . . , t(n0−
(m−
2)Δ
n), t(n0−
(m−
1)Δ
n)); andgenerating a warning signal if the prediction value y(tn0+Δ
t) deviates from a predetermined value by more than a threshold value,wherein function F(tk, tk−
Δ
n, tk−
2Δ
n, . . . , tk−
(m−
2)Δ
n, tk−
(m−
1)Δ
n) depends on the analyte values y(tk), y(tk−
Δ
n), y(tk−
2Δ
n), . . . , y(tk−
(m−
2)Δ
n), y(tk−
(m−
1)Δ
n) and the function F is used to approximate the progression of the analyte values y(tn) at time tn0 in vicinity U of an analyte value y(tn0) with a pre-determined accuracy σ
, such that - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for continuous monitoring of an analyte concentration in the living body of a human or animal, the method comprising:
-
determining an analyte values y(tn) correlating with the concentration of the analyte for consecutive points in time tn; calculating a prediction value y(tn0+Δ
t) over a prediction period Δ
t based on the analyte value y(tn) using the following equation;
y(tn0+Δ
t)=F(tn0, tn0−
Δ
n, . . . , t(n0−
(m−
2)Δ
n), t(n0−
(m−
1)Δ
n))generating a warning signal if the prediction value y(tn0+Δ
t) deviates from a predetermined value by more than a threshold value,wherein function F(tk, tk−
Δ
n, tk−
2Δ
n, . . . tk−
(m−
2)Δ
n, tk−
(m−
1)Δ
n) depends on the analyte values y(tk), y(tk−
Δ
n), y(tk−
2Δ
n), . . . , y(tk−
(m−
2Δ
n), y(tk−
(m−
1)Δ
n); andadapting the function F(tk, tk−
Δ
n, tk−
2Δ
n, . . . , tk−
(m−
2)Δ
n, tk−
(m−
1)Δ
n) in a vicinity U of an analyte value y(tn0+Δ
t) at a point in time tn=tn0+Δ
t for a calculated prediction value y(tn0+Δ
t), such that the adapted function F approximates the progression of analyte values y(tn) in the vicinity U with a predetermined accuracy and an additional prediction value y(tn0+2Δ
t) is calculated therefrom,whereby n0, m, and Δ
n are integers.
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Specification