Insulin pump having selectable insulin absorption models

• US 8,734,428 B2
• Filed: 05/22/2012
• Issued: 05/27/2014
• Est. Priority Date: 10/17/2006
• Status: Expired due to Fees

• Current Assignee: Tandem Diabetes Care Incorporated
• Original Assignee: Tandem Diabetes Care Incorporated
• Inventors: Blomquist, Michael L.
• Primary Examiner(s): FLICK, JASON E
• Application Number:
  US13/477,657
• Publication Number:
  US 20120239362A1
• Time in Patent Office: 735 Days
• Field of Search: 604/890.1
• US Class Current: 604/890.1
• CPC Class Codes: A61M 2202/07 Proteins
• CPC Class Codes: A61M 2205/35 Communication
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

Methods of estimating human insulin absorption for use in an insulin pump are disclosed. A method includes prompting a user to select between a first insulin absorption model and a second insulin absorption model. The method also includes prompting a user to provide at least one model parameter. The method further includes forming an applied insulin absorption model from the selected insulin absorption model and the at least one model parameter.

Claims

1. A method of estimating human insulin absorption for use in an insulin pump, the method comprising:

prompting a user to select between a first insulin absorption model and a second insulin absorption model on a user interface associated with an insulin pump;

prompting a user to input at least one model parameter on the user interface; and

forming an applied insulin absorption model operable with the pump from the selected insulin absorption model and the at least one model parameter, the applied insulin absorption model used to estimate a remaining amount of insulin in the user'"'"'s body at a given time after insulin has been delivered to the user.

2. The method of claim 1, further comprising employing the applied insulin absorption model to calculate an insulin level of the user.

3. The method of claim 2, wherein employing the applied insulin absorption model to calculate the insulin level of the user includes applying the equation Current IOB=Initial Bolus Amount * (Total Time Start+time−

Elapsed Time) Duration of Activity.

4. The method of claim 1, wherein the first insulin absorption model is linear.

5. The method of claim 1, wherein the second insulin absorption model is nonlinear.

6. The method of claim 1, further comprising providing a third insulin absorption model, t Therein the third insulin absorption model is a customizable insulin absorptions nodal.

7. The method claim 1 wherein the at least one parameter includes a start time.

8. The method of claim 1, wherein the at least one parameter includes a tail time.

9. The method of claim 8, further comprising employing the applied insulin absorption model to calculate an insulin level of the user within the tail time by employing the equation

10. The method of claim 8, further comprising employing the applied insulin absorptions model to calculate an insulin level of the user within the tail time by employing the equation

11. The method of claim 1, wherein the at least one parameter includes a duration.

12. The method of claim 1, wherein prompting the user to select between the first and second insulin absorption models is performed by the insulin pump.

13. The method of claim 1, wherein prompting to user to select between the first and second insulin absorption models is performed by a computer interfaced with the insulin pump.

14. The method of claim 2, wherein the insulin level is a current insulin level of the user at a time that the insulin level is calculated.

15. The method of claim 1, further comprising modifying the applied insulin absorption model based on user entered data.

16. The method of claim 15, wherein the user entered data is selected from a group consisting of:

age;

weight;

sex;

type of insulin;

fitness level; and

body mass index.

17. The method of claim 1, further comprising modifying the applied insulin absorption model based on non-user entered data.

18. The method of claim 17 wherein the non-user entered data includes bolus size.

19. An insulin pump comprising:

a pump mechanism;

a memory configured to store a first insulin absorption model, a second insulin absorption model, and at least one model parameter;

a programmable circuit arranged to control the pump mechanism and operatively connected to the memory, the programmable circuit programmed to;

prompt a user to select between the first insulin absorption model and the second insulin absorption model on a user interface associated with the insulin pump;

prompt a user to provide the at least one model parameter on the user interface; and

form an applied insulin absorption model operable with the pump from the selected insulin absorption model and the at least one model parameter, the applied insulin absorption model used to estimate a remaining amount of insulin in the user'"'"'s body at a given time after insulin has been delivered to the user.

20. The insulin pump of claim 19, wherein the programmable circuit is further programmed to employ the applied insulin absorption model to calculate an insulin level of the user.

21. The insulin pump of claim 19, wherein employing the applied insulin absorption model to calculate the insulin level of the user applies the equation Current IOB=Initial Bolus Amount * (Total Time+Start Time−

Elapsed Time) Duration of Activity.

22. The insulin pump of claim 19, wherein the at least one model parameter includes a start time.

23. The insulin pump of claim 19, wherein the at least one model parameter includes a tail time.

24. The insulin pump of claim 19, wherein at least one model parameter includes a duration.

25. The insulin pump claim 19, wherein the first insulin absorption model is linear.

26. The insulin pump of claim 19, wherein the second insulin absorption model is nonlinear.

27. The insulin pump of claim 19, wherein the programmable circuit is further programmed to modify the applied insulin absorption model based on user en entered data.

28. The insulin pump of claim 19, wherein the programmable circuit is further programmed to modify the applied insulin absorption model based on non-user entered data.

29. A method of estimating human insulin absorption for use in an insulin pump, the method comprising:

prompting at user to select between a linear insulin absorption model and a nonlinear insulin absorption model on a user interface associated with an insulin pump;

prompting a user to input a duration of insulin absorption on the user interface;

prompting a user to input a start time on the user interface;

prompting a user to input a tail time on the user interface;

forming an applied insulin absorption model operable with the insulin pump from the selected insulin absorption model, the duration, the start time, and the tail time;

employing the applied insulin absorption model to calculate an insulin level of the user at a time after insulin has been delivered to the user.

30. The method of claim 29, wherein prompting the user to select between the linear insulin absorption model and the nonlinear insulin absorption model is performed by the insulin pump.