Method and System for Manual and Autonomous Control of an Infusion Pump

Abstract

A method and system for both autonomous and manual control of an infusion pump for delivering medication to a patient is provided.

1 . A method of determining a treatment amount for an infusion pump system, comprising:
 obtaining treatment information including foodstuff composition information, food on board information, and insulin on board information; and   determining a recommended bolus amount based on the treatment information.   
     
     
         2 . The method of  claim 1 , wherein the step of obtaining treatment information comprises receiving data input from a user of the infusion pump system indicative of at least one of foodstuff composition information, food on board information, and insulin on board information. 
     
     
         3 . The method of  claim 1 , wherein the foodstuff composition information is obtained in response to receiving device-assisted data entry of a foodstuff identification into the infusion pump system. 
     
     
         4 . The method of  claim 3 , wherein the infusion pump system comprises a foodstuff data input device configured to provide said device-assisted data entry of said foodstuff identification. 
     
     
         5 . The method of  claim 4 , wherein the infusion pump system comprises: a pump body; a medicine reservoir insertable into an interior space of the pump body through an opening in the pump body; a drive system positioned in the pump body; and a control system configured to communicate with the foodstuff data input device. 
     
     
         6 . The method of  claim 3 , wherein the infusion pump system is configured to use the entered foodstuff identification to retrieve foodstuff composition information. 
     
     
         7 . The method of  claim 6 , wherein said foodstuff composition information is retrieved from an onboard data repository of said infusion pump system. 
     
     
         8 . The method of  claim 6 , wherein the foodstuff composition information retrieved by the infusion pump system includes carbohydrate, fat, and protein composition information of a foodstuff. 
     
     
         9 . The method of  claim 1 , wherein the step of determining the recommended bolus amount is based the following equation:
   Recommended bolus amount=Food Now*Carb Ratio+( BG−BG target)*insulin sensitivity−IOB+FOB,
   where: IOB=f(t)*bolus;
   FOB= f ( t )*grams Carb Ratio+ f ( t )*grams Protein Ratio+ f ( t )*grams Fat ratio; and 
 Food Now=the amount and type of foodstuffs ingested expressed in terms of grams, carbohydrates, proteins or fat. 
   
     
     
         10 . The method of  claim 1 , wherein the foodstuff composition information comprises a carbohydrate ratio. 
     
     
         11 . The method of  claim 1 , wherein the foodstuff composition information further comprises quantity information. 
     
     
         12 . The method of  claim 1 , wherein the foodstuff composition information comprises carbohydrate, fat, and protein information. 
     
     
         13 . The method of  claim 1 , further comprising using user metabolism information in calculating a bolus amount. 
     
     
         14 . The method of  claim 13 , wherein the user metabolism information comprises insulin sensitivity information. 
     
     
         15 . The method of  claim 13 , wherein the user metabolism information comprises glucose sensitivity information. 
     
     
         16 . A method of determining a treatment amount for an infusion pump system,
 comprising:   obtaining foodstuff composition information including carbohydrate, fat, and protein composition information of a foodstuff; and   determining a recommended bolus amount based on the foodstuff composition information.   
     
     
         17 . The method of  claim 16 , wherein determining a recommended bolus amount is also based on user metabolism information. 
     
     
         18 . The method of  claim 16 , wherein determining a recommended bolus amount is also based on a user's food on board and insulin on board information. 
     
     
         19 . The method of  claim 16 , wherein the foodstuff composition information is obtained in response to receiving device-assisted data entry of a foodstuff identification into the infusion pump system. 
     
     
         20 . The method of  claim 19 , wherein the infusion pump system comprises a foodstuff data input device configured to provide said device-assisted data entry of said foodstuff identification. 
     
     
         21 . The method of  claim 20 , wherein the infusion pump system comprises: a pump body; a medicine reservoir insertable into an interior space of the pump body through an opening in the pump body; a drive system positioned in the pump body; and a control system configured to communicate with the foodstuff data input device. 
     
     
         22 . The method of  claim 19 , wherein the infusion pump system is configured to use the entered foodstuff identification to retrieve foodstuff composition information. 
     
     
         23 . A method of determining a recommended bolus amount, comprising:
 obtaining user metabolism information;   obtaining foodstuff composition information including carbohydrate, fat, and protein composition information using device assisted data entry; and   determining a recommended bolus amount using the following equation:
   Recommended bolus amount=Food Now*Carb Ratio+( BG−BG target)*insulin sensitivity−IOB+FOB,
 
   where: IOB=f(t)*bolus;
   FOB= f ( t )*grams Carb Ratio+ f ( t )*grams Protein Ratio+ f ( t )*grams Fat ratio; and 
 Food Now=the amount and type of foodstuffs ingested expressed in terms of grams, carbohydrates, proteins or fat. 
   
     
     
         24 . The method of  claim 23 , wherein the foodstuff composition information is obtained in response to receiving device-assisted data entry of a foodstuff identification into the infusion pump system. 
     
     
         25 . The method of  claim 24 , wherein the infusion pump system comprises a foodstuff data input device configured to provide said device-assisted data entry of said foodstuff identification. 
     
     
         26 . The method of  claim 25 , wherein the infusion pump system comprises: a pump body; a medicine reservoir insertable into an interior space of the pump body through an opening in the pump body; a drive system positioned in the pump body; and a control system configured to communicate with the foodstuff data input device. 
     
     
         27 . The method of  claim 24 , wherein the infusion pump system is configured to use the entered foodstuff identification to retrieve foodstuff composition information.