SAFETY LIMITS FOR CLOSED-LOOP INFUSION PUMP CONTROL
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Abstract
A system and process for providing safety limits on the delivery of an infusion formulation by an infusion pump system in response to a sensed biological state. The safety limits may comprise user-initiated event signals corresponding to events that may significantly affect the biological state. The safety limits may further comprise user-initiated event ranking signals for respective events which specify a degree, quantity, or measure for the respective event. The user-initiated event and event ranking signals may be communicated to a computing element associated with the infusion pump by an associated communication device having a user interface which comprises a plurality of user-selectable operators for entering information about the events and event rankings.
41 Citations
61 Claims
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1-41. -41. (canceled)
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42. An infusion pump system to deliver an infusion formulation to a user, comprising:
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a sensing device to monitor glucose levels in the user; a computing element to receive sensing device input and to adjust delivery of the infusion formulation as a function of the rate of change of the glucose levels in the user over time, wherein the infusion formulation delivered to the user is limited to maximum and minimum values; and a pump in communication with the computing element to deliver the infusion formulation to the user. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A method of delivering an infusion formulation to a user, comprising:
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monitoring glucose levels in the user; receiving input of the glucose levels monitored and adjusting delivery of the infusion formulation as a function of the rate of change of the glucose levels in the user over time, wherein the infusion formulation delivered to the user is limited to maximum and minimum values; and delivering the infusion formulation to the user. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61)
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Specification