Patent ID: 7650244

Claim:
A device for continuous monitoring of an analyte concentration by determining its progression in the living body of a human or animal, comprising: a measuring unit configured to produce a measurement signal that is indicative of a concentration of the analyte, and an analytical unit configured to correlate analyte values y(t n ) with the concentration of the analyte for consecutive points in time t n based on the measurement signal, the analytical unit further configured to determine a function F(t k , t k-Δn , t k-2Δn , . . . , t k-(m-2) Δn , t k-(m-1) Δn ), which depends on corresponding analyte values y(t k ), y(t k-Δn ), y(t k-2 Δn ), . . . , y(t k-(m-2) Δn ), y(t k-(m-1) Δn ), and which approximates the progression of the analyte values y(t n ) at time t n0 in a vicinity U of an analyte value y(t n0 ) with a pre-determined accuracy σ, such that σ 2 ≥ ∑ t k ∈ U ⁢ [ y ⁡ ( t k ) - F ( t k - Δ ⁢ ⁢ t , t k - Δ ⁢ ⁢ n - Δ ⁢ ⁢ t , t k - 2 ⁢ Δ ⁢ ⁢ n - Δ ⁢ ⁢ t , … ⁢ t ( k - ( m - 2 ) ⁢ Δ ⁢ ⁢ n ) - Δ ⁢ ⁢ t , t ( k - ( m - 1 ) ⁢ Δ ⁢ ⁢ n ) - Δ ⁢ ⁢ t ) ] ⁢ wherein Δn is an integer, and to calculate a prediction value y(t n0 +Δt) for an analyte value over a prediction period Δt using the following equation: y ( t n0 +Δt )= F ( t n0 , t n0-Δn , . . . , t( n0-(m-2)Δn) , t (n0-(m-1)Δn) ).