Glucose analysis instrument

• US 7,695,677 B2
• Filed: 06/19/2006
• Issued: 04/13/2010
• Est. Priority Date: 06/18/2005
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Stephan, Peter, Lorenz, Robert, Werner, Karl
• Primary Examiner(s): Warden; Jill
• Assistant Examiner(s): Handy; Dwayne K
• Application Number:
  US11/424,883
• Publication Number:
  US 20060286620A1
• Time in Patent Office: 1,394 Days
• Field of Search: 422/61, 422/82.05, 422/98, 422/68.1, 435/14, 436/55, 436/95, 436/149, 436/150, 600/301, 600/316, 600/317, 600/322
• US Class Current: 422/403
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: Y10T 436/12 Condition responsive control
• CPC Class Codes: Y10T 436/144444 Glucose

Abstract

Glucose analysis instrument for diabetics, comprising a measuring device for determining glucose concentration values, a displaying device for displaying glucose concentration values, a signaling device for generating a reminder signal, and a control and evaluation device that comprises a processor and a data memory and is used to determine reminder times at which the signaling device is actuated. Event data are stored in the data memory, the event data containing information on events occurring in the life of a user of the glucose analysis instrument and on the time of occurrence of such events. The reminder times are determined by means of a reminder time determination algorithm taking into consideration event data from at least one previous day.

Claims

1. Glucose analysis instrument for diabetics, comprising:

a measuring device for determining glucose concentration values,

a displaying device for displaying the glucose concentration values,

a signaling device for generating a reminder signal, and

a control and evaluation device which comprises a processor and a data memory and is used to determine reminder times at which the signaling device is actuated,

wherein event data are stored in the data memory, said event data comprising information on one or more events occurring in the life of a user of the instrument, said events belonging to at least one predefined type of events, said type of events including food intake, said information including the type of the event and the time the event occurs; and

wherein the reminder times are determined by means of a reminder time determination algorithm executed with the processor using event data including the type of event and the time the event occurs from a plurality of days; and

wherein information relating to a time an event occurs is used as a floating reference point in the reminder time determination algorithm for calculating the reminder time by adding a time period to the floating reference point.

2. Glucose analysis instrument according to claim 1, wherein the event data are accumulated in the data memory for between about 5 previous days and about 12 previous days during the use of the instrument.

3. Glucose analysis instrument according to claim 1, wherein the event data are accumulated in the data memory for between about 4 previous days and about 14 previous days during the use of the instrument.

4. Glucose analysis instrument according claim 1, wherein the type of the event comprises an internal event corresponding to use of the glucose analysis instrument.

5. Glucose analysis instrument according to claim 4, wherein the use of the glucose analysis instrument comprises glucose concentration measurements.

6. Glucose analyses instrument according to claim 5, wherein the reminder time determination algorithm comprises a functional step that prevents actuation of the signaling device at a reminder time if a glucose concentration measurement was carried out in a pre-set waiting period of at least 20 minutes prior to the reminder time.

7. Glucose analysis instrument according to claim 1, wherein the type of the event comprises an external event corresponding to actions or activities of a user conducted other than by using the glucose analysis instrument.

8. Glucose analysis instrument according to claim 7, wherein the external event comprises one or more of the group consisting of food intakes of the user, resting periods of the user, insulin administrations, basal injections, and periods of physical activity of the user.

9. Glucose analysis instrument according to claim 7, wherein information about the occurrence of the external event is generated automatically by means of an event sensor included with the glucose analysis instrument.

10. Glucose analysis instrument according to claim 7, wherein information about the occurrence of the external event is entered manually by means of an input device included with the glucose analysis instrument.

11. Glucose analysis instrument according to claim 1, wherein the reminder time determination algorithm comprises a pattern recognition method.

12. Glucose analysis instrument according to claim 1, wherein the reminder times for working days and for non-working days are determined by means of different reminder time determination algorithms.

13. Glucose analysis instrument according to claim 1, wherein the data memory is non-volatile.

14. Glucose analysis instrument according to claim 1, wherein the signaling device generates acoustic reminder signals.

15. Glucose analysis instrument according to claim 1, wherein the control and evaluation device determines a first class of reminder times at which the signaling device generates a first type of reminder signal as a reminder of a blood glucose concentration measurement, and wherein the control and evaluation device determines a second class of reminder times at which the signaling device generates a second type of reminder signal as a reminder of an insulin injection.

16. A method for reminding a diabetic to conduct a certain action, comprising the steps of:

(a) providing a glucose analysis instrument comprising;

a measuring device for determining glucose concentration values,

a displaying device for displaying the glucose concentration values,

a signaling device for generating a reminder signal, and

a control and evaluation device comprising a processor including a reminder time determination algorithm and comprising a data memory;

(b) storing event data in the data memory, said event data comprising information on one or more events, said events belonging to at least one predefined type of events, said type of events including food intake, said information including the type of the event and the time the event occurs, said event data being from a plurality of days;

(c) determining, using the reminder time determination algorithm, reminder times at which the control and evaluation device is to actuate the signaling device, wherein the reminder time determination algorithm is executed using event data including the type of event and the time the event occurs, and wherein information relating to a time an event occurs is used as a floating reference point in the reminder time determination algorithm for calculating the reminder time by adding a time period to the floating reference point.

17. The method of claim 16, wherein the action to be reminded comprises a glucose concentration measurement or an insulin injection.

18. The method of claim 16, wherein the one or more events comprise one or more from the group consisting of a glucose concentration measurement, an insulin injection, food intake by a user of the glucose analysis instrument, a resting period of the user, and a period of physical activity of the user.

19. The method of claim 16, comprising the steps of determining a first class of reminder times at which the signaling device generates a first type of reminder signal as a reminder of a blood glucose concentration measurement, and determining a second class of reminder times at which the signaling device generates a second type of reminder signal as a reminder of an insulin injection, wherein the processor of the control and evaluation device includes different reminder time determination algorithms for each of the first and second class of reminder times.