Patent ID: 8454576

Claim:
A method for providing therapy modification in an infusion system, the method comprising: delivering insulin at a current basal rate in an existing basal pattern for a user; obtaining a plurality of measured blood glucose values including a current measured blood glucose value and historical measured blood glucose values; triggering an alarm when the current measured blood glucose value is higher or lower than a target blood glucose value; informing the user that calibration of a glucose sensor system needs to be performed when the alarm is triggered; prompting the user to decide whether the calibration is to be performed; performing the calibration if the user decides to perform the calibration; determining a basal rate adjustment from the current basal rate to an adjusted basal rate if the user decides not to perform the calibration in order to bring the current measured blood glucose value to be consistent with the target blood glucose value, wherein the basal rate adjustment is limited to be within a boundary based on the current basal rate; and delivering insulin at the adjusted basal rate if the basal rate adjustment is within the boundary.