Blood pressure monitor and cardiovascular disease risk analyzing program

• US 7,018,335 B2
• Filed: 10/31/2003
• Issued: 03/28/2006
• Est. Priority Date: 03/03/2003
• Status: Active Grant

• Current Assignee: Kazuomi Kario, Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: Shirasaki, Osamu, Kario, Kazuomi
• Primary Examiner(s): Nasser, Robert L.
• Assistant Examiner(s): MALLARI, PATRICIA C
• Application Number:
  US10/697,651
• Publication Number:
  US 20040176692A1
• Time in Patent Office: 879 Days
• Field of Search: 600300-301, 600485-507
• US Class Current: 600/485
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• 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: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

A blood pressure monitor associates information representing measuring time input from a clock with measured blood pressure values so as to store them in a memory. Blood pressure values measured in a morning time zone and blood pressure values measured in an evening time zone are grouped based on the time information associated with the blood pressure values so as to be stored in the memory. A data intra-group average calculating section calculates averages of the blood pressure values in the groups, and a risk calculating section calculates a risk value based on the calculated results of the data intra-group average calculating section.

Claims

1. A blood pressure monitor comprising:

a blood pressure data storage unit for storing blood pressure data groups each of which includes at least one blood pressure datum measured under one measuring condition;

an evaluating quantity calculating unit for calculating an evaluating quantity based on an interrelation between the blood pressure data in a first blood pressure data group and the blood pressure data in a second blood pressure data group with different measuring condition than the first blood pressure data group; and

an intra-group average calculating unit for calculating intra-group averages of blood pressure data in the blood pressure data groups for the blood pressure data groups with the different measuring conditions.

2. The blood pressure monitor according to claim 1, wherein the evaluating quantity calculating unit calculates the evaluating quantity based on an average value and a different value of the intra-group averages in the blood pressure data groups.

3. The blood pressure monitor according to claim 2, further comprising:

a cardiovascular disease risk calculating function unit for estimating a degree of cardiovascular disease risk in a numerical manner by using both the average values and the different values of the intra-group averages in the blood pressure data groups as input variables,

wherein a cardiovascular disease risk calculating function unit calculates or displays the cardiovascular disease risk when actual values of the average values and the different values of the intra-group averages are obtained.

4. The blood pressure monitor according to claims 1, wherein the evaluating quantity is related with a degree of a risk of cardiovascular diseases.

5. The blood pressure monitor according to any one of claims 1 to 4, wherein the measuring conditions are a plurality of specified time zones.

6. The blood pressure monitor according to claim 5, wherein the plural specified time zones include a first time zone which starts from about two hours before bedtime and ends until two hours after bedtime, and a second time zone which starts from about two hours before awakening and ends until about two hours after awakening.

7. The blood pressure monitor according to claim 5, further comprising:

a clock unit for outputting time information,

wherein the blood pressure data storage unit discriminates the measuring conditions for each blood pressure data based on the time information output from the clock unit and stores the blood pressure data according to measuring conditions.

8. The blood pressure monitor according to claim 1, further comprising:

an input unit through which a user inputs the measuring conditions,

wherein the blood pressure data storage unit stores the blood pressure data based on the measuring conditions input from the input unit.

9. The blood pressure monitor according to any one of claims 1 to 2, further comprising a diagnostic unit for providing at least one or more threshold values on at least one of a plurality of primary parameter axes obtained as intra-group averages of a plurality of blood pressure data groups with the different measuring conditions or average values and different values of the intra-group averages, defining a plurality of primary parameter areas, which are prescribed by the threshold values, in a primary parameter multi-dimensional area composed of the primary parameter axes, and determining or displaying which area of the primary parameter areas where actual values of primary parameters obtained based on the measured blood pressure data are present, so as to make a diagnosis based on the blood pressure data.

10. The blood pressure monitor according to claim 9, further comprising:

a primary parameter area display unit for displaying the primary parameter multi-dimensional area,

wherein the primary parameter area display unit displays the actual values of the primary parameters on the primary parameter multi-dimensional area.

11. The blood pressure monitor according to claim 10, further comprising:

a primary parameter set storage unit for storing a plurality of primary parameter sets which are composed of the intra-group averages of the blood pressure data groups with the different measuring conditions or pairs of the average values and the different values of the intra-group averages,

wherein the primary parameter area display unit displays the primary parameter sets on the primary parameter multi-dimensional area simultaneously.

12. The blood pressure monitor according to claim 9, further comprising:

a cardiovascular disease risk defining unit in which a degree of digitized cardiovascular disease risk is associated with the primary parameter areas, respectively,

wherein the risk calculating unit determines or displays the cardiovascular disease risk based on the determination as to which area of the primary parameter areas where the actual values of the primary parameters are present.

13. The blood pressure monitor according to claim 9, wherein the threshold values provided on the primary parameter axes obtained as the average values of the intra-group averages in the blood pressure data groups are threshold values of systolic blood pressure, and they are about 135 mmHg.

14. The blood pressure monitor according to claim 9, wherein the different values of the intra-group averages in the blood pressure data groups are increments of systolic blood pressure measured at time before and after uprising with respect to systolic blood pressure measured at time before bedtime, and the threshold values provided on the primary parameter axes obtained as the different values of the intra-group averages are about 20 mm Hg.

15. A cardiovascular disease risk analyzing program encoded on a computer readable medium, the program comprising a set of instructions for performing the following:

obtaining blood pressure data;

storing blood pressure data groups including at least one blood pressure datum measured under same measuring conditions in the obtained blood pressure data into a storage section according to measuring conditions; and

calculating an evaluating quantity based on interrelation between the blood pressure data in a first blood pressure data group and the blood pressure data in a second blood pressure data group with different measuring condition than the first blood pressure data group; and

calculating intra-group averages of the blood pressure data in the blood pressure data groups for the blood pressure data groups with the different measuring conditions.

16. The cardiovascular disease risk analyzing program according to claim 15 wherein the evaluating quantity is calculated based on average values and different values of intra-group averages in the blood pressure data groups.

17. The cardiovascular disease risk analyzing program according to claim 16, for allowing the computer to further execute the cardiovascular disease risk calculating function step of estimating a degree of the cardiovascular disease risk in a numerical manner by using both the average values and the different values of the intra-group averages in the blood pressure data groups as input variables,

wherein at the cardiovascular disease risk calculating function step, when the actual values of the average values and the different values of the intra-group averages are obtained, the cardiovascular disease risk is calculated or displayed.

18. The cardiovascular disease risk analyzing program according to claim 15, further comprising receiving the measuring conditions from a user,

wherein the blood pressure data are stored based on the measuring conditions input into the storage section according to the measuring conditions.

19. The cardiovascular disease risk analyzing program according to claim 15, wherein the evaluating quantity relates to a degree of the cardiovascular disease risk.

20. The cardiovascular disease risk analyzing program according to any one of claims 15 to 19, wherein the measuring conditions are a plurality of specified time zones.

21. The cardiovascular disease risk analyzing program according to claim 20, wherein the specified time zones include a first time zone which starts from about two hours before bedtime and ends about two hours after bedtime, and a second time zone which starts from about two hours before awakening and ends until about two hours after awakening.

22. The cardiovascular disease risk analyzing program according to claim 20, further comprising outputting time information,

wherein the measuring conditions are discriminated according to the blood pressure data based on the time information, and the blood pressure data are stored into the storage section according to the measuring conditions.

23. The cardiovascular disease risk analyzing program according to any one of claims 15 to 16, further comprising providing one or more threshold values on at least one of a plurality of primary parameter axes obtained as the intra-group averages in the blood pressure data groups with the different measuring conditions or the average values and the different values of the intra-group averages, defining a plurality of primary parameter areas which are prescribed by the threshold values in a primary parameter multi-dimensional area composed of the primary parameter axes, and determining or displaying as to which area of the primary parameter areas where actual values of primary parameters obtained based on the measured blood pressure data are present so as to make a diagnosis based on the blood pressure data.

24. The cardiovascular disease risk analyzing program according to claim 23, wherein the different values of the intra-group averages in the blood pressure data groups are increments of systolic blood pressure measured at time before and after uprising with respect to systolic blood pressure measured at time before bedtime, and the threshold values provided on the primary parameter axes obtained as the different values of the intra-group averages are about 20 mmHg.

25. The cardiovascular disease risk analyzing program according to claim 23, further comprising displaying the primary parameter multi-dimensional area,

wherein at the primary parameter area display step, the actual values of the primary parameters are displayed on the primary parameter multi-dimensional area.

26. The cardiovascular disease risk analyzing program according to claim 25, further comprising storing a plurality of primary parameter sets composed of the intra-group averages in the blood pressure data groups with the different measuring conditions or pairs of the average values and the different values of the intra-group averages,

wherein at the primary parameter area display step, the primary parameter sets are displayed on the primary parameter multi-dimensional area simultaneously.

27. The cardiovascular disease risk analyzing program according to claim 23, further comprising associating a degree of the digitized cardiovascular disease risk with the primary parameter areas, respectively,

wherein at the risk calculating step, the cardiovascular disease risk is determined or displayed based on the determination as to which area of the primary parameter areas where the actual values of the primary parameters are present.

28. The cardiovascular disease risk analyzing program according to claim 23, wherein the threshold values provided on the primary parameter axes obtained as the average values of the intra-group averages in the blood pressure data groups are threshold values of systolic blood pressure and are about 135 mmHg.