Device and method for determining blood glucose characteristics

• US 9,033,877 B2
• Filed: 02/23/2011
• Issued: 05/19/2015
• Est. Priority Date: 02/23/2011
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Werner, Karl, Blasberg, Peter
• Primary Examiner(s): D'Angelo, Michael
• Assistant Examiner(s): JANG, CHRISTIAN YONGKYUN
• Application Number:
  US13/032,672
• Publication Number:
  US 20120215085A1
• Time in Patent Office: 1,546 Days
• Field of Search: 600/345, 600/347, 600/365
• US Class Current: 600/365
• 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 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• 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

Abstract

A device is provided for determining blood glucose characteristics including a display configured for presenting a graphical representation of a plurality of measurements of blood glucose values, wherein the graphical representation comprises a trend indicator indicating an approximate value trend in the sensed blood glucose value over a recent series of measurements, based on graphical segments having different graphical styles assigned to different ranges of sensed blood glucose values to indicate a transition from a first range to a second range of sensed blood glucose values. An associated method for operating a device for determining blood glucose characteristics is also provided.

Claims

1. A device for determining blood glucose characteristics, comprising:

a sensor input configured for receiving a signal from a sensor, the signal being based on a sensed blood glucose value of a user;

a memory configured for storing a plurality of measurements of the sensed blood glucose value of the user from the received signal from the sensor;

a display configured for presenting a graphical representation of the plurality of measurements of the sensed blood glucose value; and

a controller configured for controlling the presentation of the graphical representation on the display,

wherein the graphical representation comprises a trend indicator adapted to indicate an approximate value trend in the sensed blood glucose value over a recent series of the plurality of measurements, wherein the trend indicator comprises a plurality of graphical segments, each of the graphical segments being of different graphical style and assigned to a different range of sensed blood glucose values, each segment being configured for indicating a transition from a first range of sensed blood glucose values to a second range of sensed blood glucose values, and wherein the trend indicator further comprises a slope for indicating a rate of change of the transition from the first range of sensed blood glucose values to the second range of sensed blood glucose values, and

wherein the controller is further configured to perform a time analysis for determining a measurement time for an early measurement providing a first sensed blood glucose value assigned to the first range of sensed blood glucose values and a later measurement providing a second sensed blood glucose value assigned to the second range of sensed blood glucose values, and wherein the controller is further configured to prevent the graphical representation of the trend indicator on the display if from the time analysis one of the following conditions is concluded;

a time interval between the early and the later measurement is shorter than a minimum time interval, and the time interval between the early and the later measurement is longer than a maximum time interval.

2. The device according to claim 1, wherein the graphical segments are selectable based on different graphical styles selected from the group of graphic styles consisting of color style and shading style.

3. The device according to claim 1, wherein the slope of the trend indicator is configured for indicating a trend mode for the sensed blood glucose values selected from the following group of trends:

moderate drop, moderate rise, steep drop, and steep rise.

4. The device according to claim 1, wherein the sensor comprises a device integrated sensor.

5. The device according to claim 4, wherein the device integrated sensor is configured to sense the blood glucose values from a test element analysis.

6. The device according to claim 1, wherein the signals received by the sensor input comprise sensed blood glucose values from a discontinuous mode of blood glucose measurement.

7. The device according to claim 1, wherein the graphical representation comprises a warning symbol indicating that a recent blood glucose value of the sensed blood glucose value belongs to a risk situation.

8. The device of claim 1, wherein the trend indicator has two graphical segments.