Method and apparatus for setting a basal rate profile for an insulin pump

• US 8,684,996 B2
• Filed: 03/02/2011
• Issued: 04/01/2014
• Est. Priority Date: 09/02/2008
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG)
• Inventors: Haueter, Ulrich, Cris, Catalin, Marcin, Stephan, Von Buren, Daniel
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): PENG, LAUREN MICHELE
• Application Number:
  US13/038,635
• Publication Number:
  US 20120059348A1
• Time in Patent Office: 1,126 Days
• Field of Search: 604/500, 604/890.1, 604/892.1, 604/131, 715/700, 700/282
• US Class Current: 604/500
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06T 11/203 Drawing of straight lines or curves
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

Methods for setting a basal rate profile for an insulin pump, wherein the basal rate profile defines a basal rate delivery for a selected time interval and has a pre-defined number of profile segments each of which define the basal rate delivery for a subset of the selected time interval, include providing a curve representing the basal rate as a continuous function of time as an input for an input unit and generating the basal rate profile from the curve by a calculation unit by assigning curve values at selected time instances to the pre-defined number of profile segments.

Claims

1. A method for setting a basal rate profile for an insulin pump, wherein the basal rate profile defines a basal rate delivery for a selected time interval and has a pre-defined number of profile segments each of which define the basal rate delivery for a subset of the selected time interval, the method comprising:

providing a curve representing a basal rate as a continuous function of time as an input for an input unit; and

generating the basal rate profile from the curve by a the calculation unit by assigning curve values at selected time instances to the pre-defined number of profile segments;

wherein the respective subset of the selected time interval varies for each profile segment, there is a threshold for the average deviation over a number of consecutive profile segments, and when the threshold is exceeded, a proposal for corrected amplitude of adjacent profile segments is calculated and presented to a user for approval; and

wherein the basal rate delivery is repeated in time and a first profile segment in time is considered adjacent to a last profile segment in time;

providing the curve by continuously moving the object across a display area of a touch screen and drawing the curve backward in time or providing the curve as a pre-drawn curve that has been scanned by a scanner; and

wherein the user can select either one of the steps of providing the curves.

2. The method of claim 1, wherein the curve is provided by continuously moving the object, across the display area.

3. The method of claim 2, wherein the object comprises a finger.

4. The method of claim 1, wherein the input unit comprises a pointing device for inputting continuous data and that the curve is provided by continuously moving the pointing device.

5. The method of claim 4, wherein the pointing device comprises a mouse.

6. The method of claim 1, wherein the the curve is provided as the pre-drawn curve that has been scanned by the scanner.

7. The method of claim 1, wherein each profile segment is assigned that curve value whose time instance lies in the middle of that time interval subset of that particular profile segment.

8. The method of claim 1, wherein the curve values that are assigned to the profile segments are rounded according to a pre-defined resolution.

9. The method of claim 1, wherein a monitoring unit is provided and a deviation between curve values assigned to the adjacent profile segments is monitored by the monitoring unit for an excess of a pre-defined threshold, and wherein a warning is generated by the monitoring unit if excess of the pre-defined threshold is detected.

10. The method of claim 9, wherein a type of the warning, depends on an amount of deviation.

11. The method of claim 10, wherein the type comprises an intensity and/or a distinctness of the warning;

and wherein the warning is a sliding indication wherein profile segments are modified in a substantially continuous way by a continuous change of a color from white to black depending on the amount of deviation.

12. The method of claim 1, wherein a reference profile is depicted on the display area of the input unit.

13. The method of claim 1, wherein the generated basal rate profile is scaled with a specific scaling factor while its mean value is kept constant.

14. The method of claim 1, wherein the provided curve is smoothed by filtering.

15. An apparatus that sets the basal rate profile, wherein the basal rate profile defines the basal rate delivery for the selected time interval and has the pre-defined number of profile segments each of which define the basal rate delivery for the subset of the selected time interval, the apparatus comprising:

the input unit that receives the input of the curve representing the basal rate as the continuous function of time; and

the calculation unit that generates the basal rate profile from the curve by assigning curve values at selected time instances to the pre-defined number of profile segments according to the method of claim 1.

16. The apparatus of claim 15, wherein the input unit further comprises the touch screen with the display.

17. The apparatus of claim 15, wherein the input unit further comprises a pointing device that inputs continuous data.

18. The apparatus of claim 17, wherein the pointing device comprises a mouse.

19. The apparatus of claim 15, wherein the input unit further comprises the scanner.

20. The apparatus of claim 15 further comprising a monitoring unit that monitors a deviation between curve values assigned to the adjacent profile segments for an excess of the threshold which is pre-defined and generates a warning if excess of the pre-defined threshold is detected.