Method and apparatus for real-time estimation of physiological parameters
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United States of America Patent
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Jun 10, 2003
Issued Date -
N/A
app pub date -
Sep 21, 2001
filing date -
Sep 22, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A real-time glucose estimator uses a linearized Kalman filter to determine a best estimate of glucose level in real time. The real-time glucose estimator receives at least one measurement corresponding to glucose level. The measurement can be obtained with one or more sensors and is provided to the linearized Kalman filter in real time. The linearized Kalman filter has dynamic models and executes a recursive routine to determine the best estimate of glucose level based upon the measurement. Additional information can be provided to the linearized Kalman filter for initialization, configuration, and the like. Outputs of the linearized Kalman filter can be provided to a patient health monitor for display or for statistical testing to determine status of the real-time glucose estimator. The real-time glucose estimator can be implemented using a software algorithm.
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