Biological information displaying apparatus and biological information displaying method

• US 9,710,942 B2
• Filed: 05/20/2015
• Issued: 07/18/2017
• Est. Priority Date: 05/20/2015
• Status: Active Grant

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Tanishima, Masami, Takayanagi, Tsuneo, Kaiami, Takashi
• Primary Examiner(s): Bayat, Ali
• Application Number:
  US14/717,056
• Publication Number:
  US 20160342827A1
• Time in Patent Office: 790 Days
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/349 Detecting specific parameters of the electrocardiograph cycle
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take 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: G06F 2218/04 Denoising
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: G16H 10/20 for electronic clinical trials or questionnaires
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

A biological information displaying apparatus includes: a measuring section which is configured to measure a biological information waveform containing a specific measurement value; a calculating section which is configured to calculate the specific measurement value based on the biological information waveform that is measured by the measuring section in a designated unit time; a determining section which is configured to determine a level of a reliability of the specific measurement value that is calculated by the calculating section, based on the biological information waveform that is measured by the measuring section in the unit time; and a displaying section which is configured to display a trend graph of the specific measurement values while the specific measurement values are distinct according to the level of the reliability that is determined by the determining section.

Claims

1. A biological information displaying apparatus comprising:

a measuring circuit which is configured to measure a biological information waveform containing a specific measurement value;

at least one computer which is configured to calculate the specific measurement value based on the biological information waveform that is measured by the measuring circuit in a designated unit time;

the at least one computer being further configured to determine a level of a reliability of the specific measurement value, based on the biological information waveform that is measured by the measuring circuit in the unit time; and

a display which is configured to display a trend graph of the specific measurement values while the specific measurement values are distinct according to the level of the reliability that has been determined,

wherein the at least one computer determines the level of reliability according to a condition which is designated with respect to dispersion of the specific measurement values based on the respective biological information waveforms that are measured by the measuring circuit in the designated unit time, and

wherein the designated condition is a condition that a statistical dispersion of the specific measurement values that are calculated by the at least one computer based on the respective biological information waveforms that are measured by the measuring circuit in the designated unit time is equal to or smaller than a designated threshold.

2. The biological information displaying apparatus according to claim 1, wherein a statistical value of the specific measurement values in which the reliability is determined to be high by the at least one computer, in a predetermined time period is displayed superimposedly on the trend graph of the specific measurement values.

3. The biological information displaying apparatus according to claim 1, wherein the specific measurement value in which the level of the reliability is determined is a representative value which is calculated based on the biological information waveforms that are respectively measured by the measuring circuit in a plurality of places of a human body, or a waveform based on biological information waveforms of a plurality of beats which are respectively measured by the measuring circuit in the designated unit time in the plurality of places of the human body.

4. The biological information displaying apparatus according to claim 3, wherein the waveform based on the biological information waveforms of the plurality of beats is a waveform which is obtained by arithmetically averaging the electrocardiogram waveforms of the plurality of beats, or a median value.

5. The biological information displaying apparatus according to claim 3, wherein the representative value is at least one of:

an average value or a median value of the specific measurement values which are calculated respectively in the plurality of places of the human body based on the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats; and

a value which is defined as an interval between an earliest one of start timings and a latest one of end timings of waveform widths defining the specific measurement values appearing in the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats.

6. The biological information displaying apparatus according to claim 3, wherein the display further displays the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as a basis for calculating the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values.

7. The biological information displaying apparatus according to claim 6, wherein, while corresponding with the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as the basis for calculating the specific measurement value in the designated time, of the specific measurement values displayed in the trend graph of the specific measurement values, the display further displays level relationships of the specific measurement values which are calculated based on the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, in a form of a graph or numerical values.

8. The biological information displaying apparatus according to claim 7, wherein, in a case where the level relationships of the specific measurement values are displayed in the form of the numerical values, the display displays the specific measurement values in a manner that maximum and minimum values of the numerical values are distinguishable.

9. The biological information displaying apparatus according to claim 7, wherein the display displays the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, with superimposed on a display showing starting and ending timings of a time width defining the representative value.

10. The biological information displaying apparatus according to claim 2, wherein the display further displays a relationship among:

the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values;

a statistical value of the specific measurement values during a predetermined time period in the designated time; and

dispersion of the specific measurement values in the designated time.

11. The biological information displaying apparatus according to claim 10, wherein, in a case where the representative value is designated as a median value of the specific measurement values which are calculated based on the biological information waveforms that are measured in a plurality of places of a human body, or a waveform based on the biological information waveforms of a plurality of beats, the display displays the biological information waveforms or the waveform based on the biological information waveforms of the plurality of beats, and the specific measurement value in a manner that at least one of the biological information waveform which provides the median value, the waveform based on the biological information waveforms of the plurality of beats, and the median value which is calculated based on these waveforms is distinguishable.

12. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability, wherein, in the determining process, when dispersion of the specific measurement values which are respectively calculated in the calculating process based on the respective biological information waveforms that are measured in the measuring process in the designated unit time satisfies a designated condition, it is determined that the reliability is high, and when the dispersion does not satisfy the condition, it is determined that the reliability is low, and

wherein the designated condition is a condition that a statistical dispersion of the specific measurement values that are calculated in the calculating process based on the respective biological information waveforms that are measured in the measuring process in the designated unit time is equal to or smaller than a designated threshold.

13. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability, wherein, in the determining process, it is determined that the reliability of the specific measurement value which is calculated in the calculating process based on the biological information waveform in which a degree of fluctuation of the biological information waveform in an arbitrary time zone satisfies a designated condition is high, and it is determined that the reliability of the specific measurement value which does not satisfy the condition is low, and

wherein the designated time zone for the biological information waveform is an arbitral time zone in which a baseline is appearable in the biological information waveform.

14. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability,

wherein a statistical value of specific measurement values in which the reliability is determined to be high in the determining process, in a predetermined time period is displayed superimposedly on the trend graph of the specific measurement values.

15. The biological information displaying method according to claim 14, wherein, in the displaying process, further displaying a relationship among:

the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values;

a statistical value of the specific measurement values during a predetermined time period in the designated time; and

dispersion of the specific measurement values in the designated time.

16. The biological information displaying method according to claim 15, wherein, in the displaying process, in a case where the representative value is designated as a median value of the specific measurement values which are calculated based on the biological information waveforms that are measured in a plurality of places of a human body, or a waveform based on the biological information waveforms of a plurality of beats, displaying the biological information waveforms or the waveform based on the biological information waveforms of the plurality of beats, and the specific measurement value in a manner that at least one of the biological information waveform which provides the median value, the waveform based on the biological information waveforms of the plurality of beats, and the median value which is calculated based on these waveforms is distinguishable.

17. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability,

wherein the specific measurement value in which the level of the reliability is determined in the determining process is a representative value which is calculated in the calculating process based on the biological information waveforms that are respectively measured in the measuring process in a plurality of places of a human body, or a waveform based on biological information waveforms of a plurality of beats which are respectively measured in the measuring process in the designated unit time in the plurality of places of the human body, and

wherein the waveform based on the biological information waveforms of the plurality of beats is a waveform which is obtained by arithmetically averaging the electrocardiogram waveforms of the plurality of beats, or a median value.

18. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability,

wherein the specific measurement value in which the level of the reliability is determined in the determining process is a representative value which is calculated in the calculating process based on the biological information waveforms that are respectively measured in the measuring process in a plurality of places of a human body, or a waveform based on biological information waveforms of a plurality of beats which are respectively measured in the measuring process in the designated unit time in the plurality of places of the human body, and

wherein the representative value is at least one of;

an average value or a median value of the specific measurement values which are calculated respectively in the plurality of places of the human body based on the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats; and

a value which is defined as an interval between an earliest one of start timings and a latest one of end timings of waveform widths defining the specific measurement values appearing in the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats.

19. A biological information displaying method comprising:

measuring a biological information waveform containing a specific measurement value;

calculating the specific measurement value based on the biological information waveform that is measured in the measuring process in a designated unit time;

determining a level of a reliability of the calculated specific measurement value based on the biological information waveform that is measured in the unit time; and

displaying a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of the reliability,

wherein the specific measurement value in which the level of the reliability is determined in the determining process is a representative value which is calculated in the calculating process based on the biological information waveforms that are respectively measured in the measuring process in a plurality of places of a human body, or a waveform based on biological information waveforms of a plurality of beats which are respectively measured in the measuring process in the designated unit time in the plurality of places of the human body, and

wherein, in the displaying process, further displaying the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as a basis for calculating the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values.

20. The biological information displaying method according to claim 19, wherein, in the displaying process, while corresponding with the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as the basis for calculating the specific measurement value in the designated time, of the specific measurement values displayed in the trend graph of the specific measurement values, further displaying level relationships of the specific measurement values which are calculated based on the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats in a form of a graph or numerical values.

21. The biological information displaying method according to claim 20, wherein, in the displaying process, in a case where the level relationships of the specific measurement values are displayed in the form of the numerical values, displaying the specific measurement values in a manner that maximum and minimum values of the numerical values are distinguishable.

22. The biological information displaying method according to claim 20, wherein, in the displaying process, displaying the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, with superimposed on a display showing starting and ending timings of a time width defining the representative value.

23. A biological information displaying apparatus comprising:

a measuring circuit which is configured to measure a biological information waveform containing a specific measurement value;

at least one computer which is configured to calculate the specific measurement value based on the biological information waveform that is measured by the measuring circuit in a designated unit time;

the at least one computer being further configured to determine a level of a reliability of the calculated specific measurement value, based on the biological information waveform that is measured by the measuring circuit in the unit time; and

a display which is configured to display a trend graph of the specific measurement values while the specific measurement values are distinct according to the determined level of reliability,

wherein the at least one computer determines the level of reliability according to a condition which is designated with respect to a degree of fluctuation of the biological information waveform in a designated time zone, and

wherein the designated time zone for the biological information waveform is an arbitral time zone in which a baseline is appearable in the biological information waveform.

24. The biological information displaying apparatus according to claim 23, wherein a statistical value of the specific measurement values in which the reliability is determined to be high by the at least one computer, in a predetermined time period is displayed superimposedly on the trend graph of the specific measurement values.

25. The biological information displaying apparatus according to claim 24, wherein the display further displays a relationship among:

the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values;

a statistical value of the specific measurement values during a predetermined time period in the designated time; and

dispersion of the specific measurement values in the designated time.

26. The biological information displaying apparatus according to claim 25, wherein, in a case where the representative value is designated as a median value of the specific measurement values which are calculated based on the biological information waveforms that are measured in a plurality of places of a human body, or a waveform based on the biological information waveforms of a plurality of beats, the display displays the biological information waveforms or the waveform based on the biological information waveforms of the plurality of beats, and the specific measurement value in a manner that at least one of the biological information waveform which provides the median value, the waveform based on the biological information waveforms of the plurality of beats, and the median value which is calculated based on these waveforms is distinguishable.

27. The biological information displaying apparatus according to claim 23, wherein the specific measurement value is a representative value which is calculated based on the biological information waveforms that are respectively measured by the measuring circuit in a plurality of places of a human body, or a waveform based on biological information waveforms of a plurality of beats which are respectively measured by the measuring circuit in the designated unit time in the plurality of places of the human body.

28. The biological information displaying apparatus according to claim 27, wherein the waveform based on the biological information waveforms of the plurality of beats is a waveform which is obtained by arithmetically averaging the electrocardiogram waveforms of the plurality of beats, or a median value.

29. The biological information displaying apparatus according to claim 27, wherein the representative value is at least one of:

an average value or a median value of the specific measurement values which are calculated respectively in the plurality of places of the human body based on the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats; and

a value which is defined as an interval between an earliest one of start timings and a latest one of end timings of waveform widths defining the specific measurement values appearing in the biological information waveform, or the waveform based on the biological information waveforms of the plurality of beats.

30. The biological information displaying apparatus according to claim 27, wherein the display further displays the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as a basis for calculating the specific measurement value in a designated time, of the specific measurement values displayed in the trend graph of the specific measurement values.

31. The biological information displaying apparatus according to claim 30, wherein, while corresponding with the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, which is used as the basis for calculating the specific measurement value in the designated time, of the specific measurement values displayed in the trend graph of the specific measurement values, the display further displays level relationships of the specific measurement values which are calculated based on the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, in a form of a graph or numerical values.

32. The biological information displaying apparatus according to claim 31, wherein, in a case where the level relationships of the specific measurement values are displayed in the form of the numerical values, the display displays the specific measurement values in a manner that maximum and minimum values of the numerical values are distinguishable.

33. The biological information displaying apparatus according to claim 31, wherein the display displays the biological information waveform or the waveform based on the biological information waveforms of the plurality of beats, with superimposed on a display showing starting and ending timings of a time width defining the representative value.