Infusion pump with activity monitoring

• US 8,840,582 B2
• Filed: 05/29/2012
• Issued: 09/23/2014
• Est. Priority Date: 01/09/2008
• Status: Active Grant

• Current Assignee: Tandem Diabetes Care Incorporated
• Original Assignee: Tandem Diabetes Care Incorporated
• Inventors: Blomquist, Michael, Bresina, Timothy, Bynum, Gail Beth, Welsch, Michael, VanDyke, William
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): LANDRY II, GERALD ERNEST
• Application Number:
  US13/482,106
• Publication Number:
  US 20120302991A1
• Time in Patent Office: 847 Days
• Field of Search: 604/66, 604/67, 604131-155, 604/503, 604/504
• US Class Current: 604/66
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2209/02 Equipment for testing the apparatus
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G08B 21/24 Reminder alarms, e.g. anti-loss alarms

Abstract

This document discusses, among other things, an apparatus comprising a pump configured to deliver a fluid, an input and a controller. The controller is configured to receive via the input information related to physical activity of a user and to automatically calculate a change in insulin therapy based on an amount of carbohydrates metabolized by the physical activity.

Claims

1. An apparatus comprising:

a pump configured to deliver insulin;

an input; and

a controller communicatively coupled to the pump and the input, wherein the controller is configured to receive via the input information related to physical activity of a user of the apparatus, wherein the controller includes an insulin calculation module to automatically calculate, using the physical activity information, an amount of carbohydrates metabolized by the physical activity and to further automatically calculate a change in insulin therapy based on the calculated amount of carbohydrates, and wherein the controller is configured to initiate the delivery of insulin according to the change in insulin therapy.

2. The apparatus of claim 1, including a user interface communicatively coupled to the input, wherein the information related to physical activity is received via the user interface, and wherein the insulin calculation module is configured to change the insulin therapy by reducing insulin in at least one of an insulin meal bolus or a correction insulin bolus by an amount that covers the metabolized amount of carbohydrates.

3. The apparatus of claim 1, including a user interface communicatively coupled to the input, wherein the information related to physical activity is received via the user interface, and wherein the insulin calculation module is configured to change the insulin therapy by

temporarily reducing a basal insulin rate pattern by an amount that covers the metabolized amount of carbohydrates.

4. The apparatus of claim 1, including:

a user interface communicatively coupled to the input; and

a display communicatively coupled to the controller, wherein the information related to physical activity is received via the user interface, and wherein the insulin calculation module is configured to recommend, via the display, that the user consume the calculated amount of carbohydrates.

6. The apparatus of claim 1, including an activity sensor communicatively coupled to the input, to provide an activity sensors signal, wherein the activity sensor signal is an electrical signal representative of the patient physical activity.

7. The apparatus of claim 6, including:

a second input, wherein the controller is configured to receive information related to blood glucose into the insulin pump device via the second input; and

a display, wherein the controller is configured to display the physical activity information in association with the blood glucose information on the insulin pump device.

8. The apparatus of claim 7, wherein the controller is configured to display an indication of a period of high blood glucose level, a period of low blood glucose level, or both periods of high and low blood glucose levels together with an indication of physical activity level.

9. The apparatus of claim 6 including:

a memory to store a basal insulin rate pattern and an indicated activity level corresponding to the basal insulin rate pattern; and

a display;

wherein the controller includes an activity module configured to determine, using the activity sensor signal, an actual activity level of the patient during delivery of the basal insulin rate pattern, and wherein the controller is configured to display an indication when the actual activity level deviates from the indicated activity level based on the physical activity information and display a recommended change to the basal rate pattern.

11. The apparatus of claim 6, including a memory to store a basal rate pattern in association with a patient activity level;

wherein the controller includes an activity module configured to determine a level of patient activity using the activity sensor signal, and wherein the controller is configured to activate an exercise basal rate pattern according to the level of patient activity.

12. The apparatus of claim 6, wherein the controller includes an activity module configured to determine that the activity signal exceeds a signal threshold value associated with the insulin pump device undergoing an impact, and wherein the controller is configured to display a recommendation to check the insulin pump device, an insulin cartridge, or both the insulin pump device and insulin cartridge for damage.

5. An apparatus comprising:

a pump configured to deliver insulin;

an input; and

a controller communicatively coupled to the pump and the input;

a memory communicatively coupled to the controller and configured to store an exercise regimen comprising predefined physical activity of the user that metabolizes carbohydrates;

a user interface communicatively coupled to the controller and configured to receive an indication that the user will exercise according to the exercise regimen; and

wherein the controller is configured to receive via the user interface the indication that the user will exercise according to the exercise regimen, and wherein the controller includes an insulin calculation module to automatically calculate a change in insulin therapy according to the exercise regimen, and wherein the controller is configured to initiate the delivery of insulin according to the change in insulin therapy.

13. The apparatus of claim 5, further comprising a display communicatively coupled to the controller, wherein the controller is configured to present on the display an exercise insulin delivery pattern calculated as the change in insulin therapy corresponding to the exercise regimen, and to receive, via the user interface, at least one of a selection of the exercise insulin delivery pattern into the device or a modification to the exercise insulin delivery pattern into the device.

14. The apparatus of claim 5, including an activity sensor communicatively coupled to the input, to provide an activity sensor signal, wherein the activity sensor signal is an electrical signal representative of the patient physical activity.

15. The apparatus of claim 14, including:

a second input, wherein the controller is configured to receive information related to blood glucose into the insulin pump device via the second input; and

a display, wherein the controller is configured to display the physical activity information in association with the blood glucose information on the insulin pump device.

16. The apparatus of claim 15, wherein the controller is configured to display an indication of a period of high blood glucose level, a period of low blood glucose level, or both periods of high and low blood glucose levels together with an indication of physical activity level.

17. The apparatus of claim 14, wherein the controller includes an activity module configured to determine that the activity signal exceeds a signal threshold value associated with the insulin pump device undergoing an impact, and wherein the controller is configured to display a recommendation to check the insulin pump device, an insulin cartridge, or both the insulin pump device and insulin cartridge for damage.

10. An apparatus comprising:

a pump configured to deliver insulin;

an input;

a controller communicatively coupled to the pump and the input, wherein the controller is configured to receive via the input information related to physical activity of a user of the apparatus, wherein the controller includes an insulin calculation module to automatically calculate a change in insulin therapy according to the physical activity information, and wherein the controller is configured to initiate the delivery of insulin according to the change in insulin therapy;

an activity sensor communicatively coupled to the input, to provide an activity sensor signal, wherein the activity sensor signal is an electrical signal representative of the patient physical activity; and

a display, and wherein the controller includes;

an activity module configured to;

establish a baseline level of patient activity for a period of time;

determine an actual level of patient activity during the period using the activity sensor signal; and

compare the actual level of patient activity to the baseline level; and

the insulin calculation module is configured to;

calculate and display an amount of carbohydrates for the patient to consume when the actual level of patient activity exceeds the baseline level by a threshold value.

18. The apparatus of claim 10, wherein the insulin calculation module is further configured to prompt the user, via the display, to initiate blood glucose tests when the actual level of patient activity is less than the baseline level by the same or a different threshold value.

19. The apparatus of claim 10, including:

a second input, wherein the controller is configured to receive information related to blood glucose into the insulin pump device via the second input; and

a display, wherein the controller is configured to display the physical activity information in association with the blood glucose information on the insulin pump device.

20. The apparatus of claim 19, wherein the controller is configured to display an indication of a period of high blood glucose level, a period of low blood glucose level, or both periods of high and low blood glucose levels together with an indication of physical activity level.

21. The apparatus of claim 10, wherein the controller includes an activity module configured to determine that the activity signal exceeds a signal threshold value associated with the insulin pump device undergoing an impact, and wherein the controller is configured to display a recommendation to check the insulin pump device, an insulin cartridge, or both the insulin pump device and insulin cartridge for damage.