Method for visualizing a chronological sequence of measurements

• US 8,684,929 B2
• Filed: 12/14/2007
• Issued: 04/01/2014
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG)
• Inventors: Heaton, Kelly
• Primary Examiner(s): Mallari, Patricia
• Assistant Examiner(s): WESTON, TIFFANY C
• Application Number:
  US11/956,840
• Publication Number:
  US 20080208027A1
• Time in Patent Office: 2,300 Days
• Field of Search: 600/365, 600/309, 600/345, 600/347, 345/44, 702176-178
• US Class Current: 600/365
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

The invention comprises a method for visualising a chronological sequence of measurements, in particular obtained from a continuous glucose monitoring (CGM) process, comprising the step of presenting measured data in polar coordinate graphing system. A device 100 is disclosed that comprises a measuring unit 101, in particular a continuous glucose measuring unit, a communication link 103 for transmitting the measured data, in particular a wireless transmission device with a sending 104 and a receiving part 105, and a display 110, optionally with a computing unit 107 that is designed and programmed to visualise data obtained from the measuring unit according to the previously described method, in particular a mobile phone display, MP3 player display, handheld computer display, laptop computer display, personal computer display or other display device being addressable by the communication link. The method and the device enable both the patient and the physician or HCP to improve their recognition of important and/or periodic events during a chronological sequence of (CGM) measurements.

Claims

1. A method for visualizing a chronological sequence of measurements comprising:

receiving measured data from a continuous glucose monitoring process for a measured parameter;

transforming, automatically with a computing unit, the measured data into presented measured data; and

presenting the presented measured data with a display communicably coupled to the computing unit wherein;

first values of the presented measured data above a first reference value are plotted by the computing unit in a first polar coordinate system;

second values of the presented measured data below a second reference value are plotted by the computing unit in a second polar coordinate system;

the second polar coordinate system having a differently and oppositely scaled radial axis from a radial axis of the first polar coordinate system but with both a common point of origin and a common circular axis with the first polar coordinate system;

the first and second polar coordinate systems are displayed simultaneously by the computing unit, such that the second polar coordinate system is laid over the first polar coordinate system; and

remaining values of the presented measured data below the first reference value and above the second reference value being plotted as a point in the common point of origin, wherein the first reference value of the first polar coordinate system is a different value from the second reference value of the second polar coordinate system.

2. The method as recited in claim 1, further comprises plotting time along the circular axis.

3. The method as recited in claim 2, further comprises representing as a radian of 2π

a measurement pattern of 12 hours or 24 hours.

4. The method as recited in claim 2, wherein a radian of 2π

represents a fixed period of elapsed time and said method further comprises displaying data of the fixed period of elapsed time.

5. The method as recited in claim 4, further comprises interpolating the presented measured data to build a smooth curve.

6. The method as recited in claims 5, further comprises displaying in color or grey shade an area between the origin of the first coordinate system and the smooth curve.

7. The method as recited in claim 6, further comprises having the color or grey shade show a transparency such that multiple coverings of the area in subsequent revolutions leads to gradual darkening of the area.

8. The method as recited in claim 6, further comprises transmitting the measured data via a communication link, wherein the communication link comprises a wireless transmission device with a sending and a receiving part;

and the display is a mobile phone display, MP3player display, handheld computer display, laptop computer display, or personal computer.

9. The method as recited in claim 4, wherein the fixed period of elapsed time is switchable between 12 hours, 24 hours, a week, and a month.

10. The method as recited in claim 1, further comprises plotting numerical values of the presented measured data along the scaled radial axis, wherein the numerical values comprise a monitored glucose concentration.

11. The method as recited in claim 1, further comprises highlighting graphically a critical boundary as a highlighted circle that is fixed over time, wherein the critical boundary comprises a threshold for hyperglycemia or hypoglycemia.

12. The method as recited in claim 11, further comprises representing different numerical ranges of the numerical values that are target values by different colors or grey shades.

13. The method as recited in claim 1, further comprises displaying a difference to at least one of the first and second reference values or a modulus of the difference to at the least one of the first and second reference values.

14. The method as recited in claim 1, further comprises plotting time along the circular axis, wherein the time is selected from hours per day, days per week, weeks per month and combinations thereof.

15. The method as recited in claim 1, further comprises averaging previously recorded and stored data for the measured parameter and displaying on the display a resulting average curve from the averaging of the previously recorded and stored data along with the presented measured data.

16. A method for visualizing a chronological sequence of measurements comprising:

receiving measured data from a continuous glucose monitoring process for a measured parameter;

transforming, automatically with a computing unit, the measured data into presented measured data; and

presenting the presented measured data with a display communicably coupled to the computing unit wherein;

first values of the presented measured data above a first reference value are plotted by the computing unit in a first polar coordinate system;

second values of the presented measured data below a second reference value are plotted by the computing unit in a second polar coordinate system having a differently and oppositely scaled radial axis from a scaled radial axis of the first polar coordinate system but with both a common point of origin and a common circular axis with the first polar coordinate system;

the first and second polar coordinate systems are displayed simultaneously by the computing unit, such that the second polar coordinate system is laid over the first polar coordinate system;

the scaled radial axis of the first polar coordinate system increases radially;

the differently and oppositely scaled radial axis of the second coordinate system decreases radially;

remaining values of the presented measured data below the first reference value and above the second reference value are plotted as a point in the common point of origin; and

first and second critical threshold values are each plotted by the computing unit as a highlighted circle that is fixed over time,

wherein the first values plotted and the first critical threshold value have the same units and relate to the same measured parameter, and in which the first critical threshold value is a value greater than the first reference value,

wherein the second values plotted and the second critical threshold value have the same units and relate to the same measured parameter, and in which the second critical threshold value is a value less than the second reference value, and

wherein the first reference value of the first coordinate system is a different value from the second reference value of the second coordinate system.

17. A method for visualizing a chronological sequence of measurements comprising:

receiving measured data from a continuous glucose monitoring process for a measured parameter, wherein the measured parameter is a glucose level;

transforming, automatically with a computing unit, the measured data into presented measured data; and

presenting the presented measured data with a display communicably coupled to the computing unit via the computing unit;

plotting first values of the presented measured data in a first polar coordinate system,

plotting second values of the presented measured data in a second polar coordinate system,

displaying simultaneously the first and second polar coordinate systems such that the second polar coordinate system is laid over the first polar coordinate system with a common point of origin, wherein;

a radial axis of the first polar coordinate system increases radially,

a radial axis of the second polar coordinate system decreases radially,

the first values plotted in the first polar coordinate system are above a first reference value that indicates hyperglycemia,

the second values plotted in the second polar coordinate system are below a second reference value that indicates hypoglycemia,

the first values plotted and the first reference value have the same units and relate to the same measured parameter,

the second values plotted and the second reference value have the same units and relate to the same measured parameter, and

the first reference value of the first polar coordinate system is a different value from the second reference value of the second polar coordinate system, and

plotting first and second critical threshold values each as a highlighted circle that is fixed over time,

plotting remaining values of the presented measured data below the first reference value and above the second reference value as a point in the common point of origin;

plotting time along a circular axis in which a radian of 2π

represents a fixed period of elapsed time,

permitting periodicity of the circular axis to be switchable from a hours per day, days per week, weeks per month, and combinations thereof,

displaying a difference to at least one of the first and second reference values or a modulus of the difference to at least one of the first and second reference values, and

representing different numerical ranges of the first and second values that are target values by different colors or grey shades.

18. The method as recited in claim 17, further comprises interpolating the presented measured data to build a smooth curve.

19. The method as recited in claims 18, further comprises displaying in color or grey shade an area between the origin of the first polar coordinate system and the smooth curve.

20. The method as recited in claim 19, further comprises having the color or grey shade show a transparency such that multiple coverings of the area in subsequent revolutions leads to gradual darkening of the area.