SHAPE RECOGNITION OF HYPOGLYCEMIA AND HYPERGLYCEMIA

• US 20080114215A1
• Filed: 11/09/2006
• Published: 05/15/2008
• Est. Priority Date: 11/09/2006
• Status: Abandoned Application

• Current Assignee: Konamite Limited
• Original Assignee: Isense Corporation (Bayer AG)
• Inventors: Bruce, Robert, Ward, William Kenneth
• Application Number:
  US11/558,399
• Publication Number:
  US 20080114215A1
• Time in Patent Office: Days
• US Class Current: 600/300
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/70 for mining of medical data, e.g. analysing previous cases of other patients

Abstract

Embodiments of the present invention teach the use of shape recognition methods, apparatuses, and systems to classify the shape of one or more recent glucose trends during continuous glucose monitoring and to warn the user when specific shapes or trends are identified. Using such embodiments, patients with diabetes may be warned before they become overtly hypoglycemic or hyperglycemic.

Claims

1. A method, comprising:

measuring with a glucose sensing device a plurality of glucose values of an individual for a plurality of points of time over a defined time period;

fitting the plurality of glucose values to at least a portion of a curve;

identifying a glucose level condition of the individual based on said at least a portion of a curve to which the plurality of glucose values fit; and

providing a notification of the glucose level condition to the individual.

2. The method of claim 1, wherein said at least a portion of a curve comprises at least a portion of a parabola.

3. The method of claim 1, wherein said at least a portion of a curve to which the plurality of glucose values fit is one of a predefined set of curves, and said glucose level condition is predetermined for each curve of said predefined set of curves.

4. The method of claim 1, wherein said time period has a duration of approximately 5-30 minutes.

5. The method of claim 1, wherein said notification comprises an audible, visual, or vibratory alarm.

6. The method of claim 1, wherein said notification comprises a display of a graphical representation of said at least a portion of a curve.

7. The method of claim 1, wherein said notification comprises a display of text indicating a condition of concern.

8. The method of claim 1, wherein said notification comprises an indication of a relative level of concern based on the identified glucose level condition.

9. The method of claim 1, wherein said glucose level condition comprises an indication of a prediction of impending hypoglycemia or hyperglycemia.

10. The method of claim 1, further comprising providing a prediction of a future glucose value of the individual for a future point in time based on an extrapolation of the curve to the future point in time.

11. The method of claim 10, wherein said prediction of a future glucose value is displayed on said glucose sensing device or a device associated with said glucose sensing device.

12. The method of claim 10, wherein said prediction of a future glucose value is utilized to determine and provide to the individual a recommended action.

13. The method of claim 12, wherein said recommended action comprises recommending that the individual take a dose of insulin, eat, drink, exercise, and/or contact a medical professional.

14. The method of claim 10, wherein said notification is provided only when the predicted future glucose level of the individual is above or below an established threshold glucose level.

15. The method of claim 14, wherein said threshold is set at or below 70 mg/dl.

16. The method of claim 14, wherein said threshold is set at or above 126 mg/dl.

17. The method of claim 10, wherein said notification is provided when the predicted future glucose level is below an established threshold glucose level and the current glucose level is approximately 5-25 mg/dl above the established threshold glucose level.

18. The method of claim 10, wherein said notification is provided when the predicted future glucose level is above an established threshold glucose level and the current glucose level is approximately 5-25 mg/dl below the established threshold glucose level.

19. An apparatus, comprising:

a glucose sensing device coupled to an electronic monitoring unit, said electronic monitoring unit comprising a storage medium and a plurality of programming instructions stored in the storage medium adapted to program an apparatus to enable the apparatus to;

measure with a glucose sensing device a plurality of glucose values of an individual for a plurality of points of time over a defined time period;

fit the plurality of glucose values to at least a portion of a curve;

identify a glucose level condition of the individual based on said at least a portion of a curve to which the plurality of glucose values fit; and

provide a notification of the glucose level condition to the individual.