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Method and apparatus for real-time estimation and control of physiological parameters

  • US 20040034295A1
  • Filed: 03/18/2003
  • Published: 02/19/2004
  • Est. Priority Date: 09/26/2000
  • Status: Active Grant
First Claim
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1. A method for providing a best estimate of glucose level in real time comprising the acts of:

  • obtaining a measurement which is a function of glucose level, wherein noise associated with the measurement is within limits of a predefined measurement uncertainty;

    supplying the measurement to an extended Kalman filter in real time, wherein the extended Kalman filter has a dynamic process model, a dynamic measurement model, a state vector with at least one element corresponding to glucose level, and an error covariance matrix of the state vector; and

    determining the best estimate of glucose level in real time using the extended Kalman filter.

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