SYSTEM AND METHOD FOR PROVIDING CLOSED LOOP INFUSION FORMULATION DELIVERY
0 Assignments
0 Petitions
Accused Products
Abstract
A system and method for providing closed loop infusion formulation delivery which accurately calculates a delivery amount based on a sensed biological state by adjusting an algorithm'"'"'s programmable control parameters. The algorithm calculates a delivery amount having proportional, derivative, and basal rate components. The control parameters may be adjusted in real time to compensate for changes in a sensed biological state that may result from daily events. Safety limits on the delivery amount may be included in the algorithm. The algorithm may be executed by a computing element within a process controller for controlling closed loop infusion formulation delivery. The biological state is sensed by a sensing device which provides a signal to the controller. The controller calculates an infusion formulation delivery amount based on the signal and sends commands to an infusion formulation delivery device which delivers an amount of infusion formulation determined by the commands.
-
Citations
71 Claims
-
1-51. -51. (canceled)
-
52. An insulin formulation delivery system, comprising:
-
an infusion device that delivers an amount of insulin formulation in accordance with a basal rate component; and a controller that receives a sensor signal representative of a sensed blood glucose level from a sensor at predefined timed intervals, compares the sensed blood glucose level in the sensor signal to a predefined blood glucose level threshold, and generates commands that are communicated to the infusion device including a command to disable delivery of the basal rate component if the sensed blood glucose level crosses the predefined blood glucose level threshold. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61)
-
-
62. An insulin formulation delivery system, comprising:
-
an infusion device that delivers an amount of insulin formulation in accordance with a basal rate component; a sensor that generates a sensor signal representative of a sensed blood glucose level at predefined timed intervals; and a controller that receives the sensor signal from the sensor, compares the sensed blood glucose level in the sensor signal to a predefined blood glucose level threshold, and generates commands that are communicated to the infusion device including a command to disable delivery of the basal rate component if the sensed blood glucose level crosses the predefined blood glucose level threshold. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71)
-
Specification