JP2003093360A - System for displaying pulse shaking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for displaying an information of time series pulse data in a way that makes it possible to recognize pulse shaking. SOLUTION: The system 1 for displaying the pulse shaking is equipped with a means 2 for measuring the pulse data of a subject and a means 3 for displaying the time series pulse data on the two-dimensional coordinates whose transverse and vertical axes are specified (transverse and vertical axes) where the means 3 displays the first pulse data of the time series information at the specified time on either the transverse or the vertical axis and displays the second pulse data on the other axis at the specified time next to the first pulse data, thereby displaying the time series information on the coordinates which can distinguish the large and small relationship between the first pulse data and the second pulse data, namely (the first pulse data, the second pulse data) or (the second pulse data, the first pulse data).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heartbeat fluctuation display system for measuring and displaying fluctuations in heartbeat data of a person to be measured.

[0002]

2. Description of the Related Art It is known that human heartbeat data, such as heartbeat rate and heartbeat interval (RR interval of electrocardiographic waveform), increases or decreases depending on the physical and mental conditions. For example, there is a device that measures the instantaneous heart rate (beats / minute) of a person who is exercising and displays the numerical value of the instantaneous heart rate to the person at any time. You can see how much load your heart has by looking at the numbers. Also, instead of displaying the numerical value of the instantaneous heart rate, there is also a method of displaying the elapsed time of the instantaneous heart rate using a line graph in which the horizontal axis indicates the elapsed time and the vertical axis indicates the instantaneous heart rate.

Furthermore, it is known that the human heart rate or heartbeat interval fluctuates (flucturates) with time even when the load is not applied and at rest. The state of (sympathetic nerve, parasympathetic nerve) is presumed. Generally, it can be considered that the greater the fluctuation of the heart rate or the heartbeat interval, the more active and relaxed the activity of the autonomic nerves. Here, the conventional method for obtaining the state of heartbeat fluctuation includes a method for obtaining the standard deviation of the heart rate and a method for performing frequency analysis on the temporal change of the heart rate to obtain the peak frequency and the height of the peak value. There is.

[0004]

However, in the method of numerically displaying the instantaneous heart rate, the person to be measured cannot know the state of heartbeat fluctuation, and as a result, the state of his own autonomic nerve is evaluated. There is a problem that you can not. In addition, the method of displaying the elapsed time of the instantaneous heart rate in a line graph has a problem that the graph becomes difficult to see if the measurement takes a long time.

Further, a method for obtaining the standard deviation of the heart rate in order to know the state of heartbeat fluctuation or a method for obtaining the peak frequency and the height of the peak value by frequency-analyzing the time change of the heart rate is required. There is a lot of calculation, and as a result,
There is also a problem that the amount of memory required in a device configuration that derives and displays heartbeat fluctuations increases.

The present invention has been made in view of the above problems, and an object thereof is to provide a display system for displaying time-series information of heartbeat data so that heartbeat fluctuations can be recognized.

[0007]

The first characteristic configuration of the heartbeat fluctuation display system according to the present invention for solving the above-mentioned problems is, as described in claim 1 of the scope of claims, the person to be measured. Heartbeat data measuring means for measuring the heartbeat data of
Display means for displaying the time-series information of the heartbeat data on two-dimensional coordinates (horizontal axis, vertical axis) whose vertical axis and horizontal axis are defined. By taking the first heartbeat data at a predetermined time point on one of the horizontal axis and the vertical axis and taking the second heartbeat data at the next time point of the first heartbeat data on the other axis, A point where a predetermined marker is displayed at a coordinate point (first heartbeat data, second heartbeat data) or (second heartbeat data, first heartbeat data) capable of identifying the magnitude relationship between the first heartbeat data and the second heartbeat data. is there.

A second characteristic configuration of the heartbeat fluctuation display system according to the present invention for solving the above-mentioned problems is, in addition to the first characteristic configuration, as described in claim 2 of the scope of claims. The display means cumulatively displays a plurality of the markers.

A third characteristic configuration of the heartbeat fluctuation display system according to the present invention for solving the above-mentioned problems is, in addition to the above-mentioned second characteristic configuration, as described in claim 3 of the scope of claims. The plurality of markers are displayed by different types of markers grouped in time series.

A fourth characteristic constitution of the heartbeat fluctuation display system according to the present invention for solving the above-mentioned problems is the second or third characteristic constitution as described in claim 4 of the scope of claims. In addition to that, a figure surrounding one or more markers corresponding to a predetermined time series range is displayed so as to be superimposed on the one or more markers.

A fifth characteristic configuration of the heartbeat fluctuation display system according to the present invention for solving the above-mentioned problems is any one of the first to the fourth as described in claim 5 of the scope of claims. In addition to the characteristic configuration of the above, the time-series information of the heartbeat data is displayed on a two-dimensional screen (horizontal axis, vertical axis) in which a horizontal axis having a scale of time and a vertical axis having a scale of heartbeat data are defined. The second display means for displaying is further provided.

The operation and effect will be described below. According to the first characteristic configuration of the heartbeat fluctuation display system according to the present invention, the heartbeat data measuring unit measures the heartbeat data (heartbeat rate or heartbeat interval) of the measurement subject and outputs time-series information of the heartbeat data. The display means can display the time-series information of the heartbeat data output from the heartbeat data measuring means,
Two-dimensional coordinates (horizontal axis, vertical axis) with vertical and horizontal axes specified
Can be displayed on top. Here, the display means further
The first heartbeat data at a predetermined time point in the time-series information is set to either the horizontal axis or the vertical axis, and the other axis is set to the second heartbeat data at the time point subsequent to the first heartbeat data. At the coordinate point (first heartbeat data, 1st heartbeat data,
A predetermined marker can be displayed on (second heartbeat data) or (second heartbeat data, first heartbeat data). That is, when the first heartbeat data and the second heartbeat data are the same (for example, when heartbeats and heartbeat intervals are not fluctuating)
, The markers are displayed at coordinate positions equidistant from the vertical and horizontal axes, and when either is large or small (when the heart rate or heartbeat interval is fluctuating), the coordinates near either axis are displayed. Since the marker is displayed at the position, the state of heartbeat fluctuation can be known from the display position of the marker.

According to the second characteristic configuration of the heartbeat fluctuation display system according to the present invention, since a plurality of markers are cumulatively displayed, the temporal fluctuation state of the heartbeat fluctuation is determined from the distribution state of the marker display positions. I can know.

According to the third characteristic configuration of the heartbeat fluctuation display system according to the present invention, when a plurality of markers are displayed, they are displayed by different types of markers grouped in time order, It is possible to know how heartbeat data and heartbeat fluctuations are changing with time. For example, 15 markers are displayed in time order, the first 5 markers in time order are triangular markers, and the next 5 markers are displayed.
When each marker is a circular marker and the next marker is displayed in the coordinate position corresponding to each heartbeat data in the display format based on the rule that the marker is a quadrangle marker, instead of following the transition of 15 markers, By following the transitions of the three types of markers, it is possible to know the trend of the temporal change in the heartbeat data and heartbeat fluctuation.

According to the fourth characteristic configuration of the heartbeat fluctuation display system according to the present invention, a graphic surrounding one or more markers corresponding to a predetermined time zone among the plurality of displayed markers is defined by the above-mentioned markers. By overlapping and displaying it, it is possible to clarify at which coordinate position the marker measured in a specific time zone is displayed, that is, the size of the heartbeat fluctuation from the size of the figure at that time. . For example, when 15 markers are displayed in chronological order, by displaying a rectangle surrounding the 5 most recent markers, it is buried in the 15 markers and cannot be clearly identified. The coordinate positions of the other five markers become clear, and the recent heartbeat data and heartbeat fluctuation state can be clearly identified.

According to the fifth characteristic configuration of the heartbeat fluctuation display system according to the present invention, the time fluctuation of the heartbeat data can be further displayed using a line graph, so that the time course of the heartbeat data can be more clearly known. .

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A heartbeat fluctuation display system 1 shown in FIG. 1 is a heartbeat data measurement for measuring heartbeat data (for example, heart rate and heartbeat interval (RR interval of electrocardiographic waveform)) of a person to be measured. Means 2 and display means 3 for displaying the measured heartbeat data (time series information) are provided. Display means 3
Can directly display the heartbeat data measured by the heartbeat data measuring means 2 to display the heartbeat data in real time. Alternatively, the heartbeat data measuring means 2
It is also possible to transmit the heartbeat data measured in 2 to the control means 4, store it in the memory 5, and display the data after the predetermined arithmetic processing in the control means 4 on the display means 3. Here, as the heartbeat data measuring means 2, an existing measurement means capable of measuring instantaneous heartbeat data can be used, and for example, an output signal may be taken out from a heartbeat rate measuring device provided in the exercise bike. Alternatively, the RR of the electrocardiographic waveform measured by a normal electrocardiographic signal measuring device
Outputting the interval (heartbeat interval), or the above-mentioned RR
The time-series information of the heartbeat data can also be created by deriving the instantaneous heart rate (beats / minute) from the reciprocal of the interval and using that value. In addition, the electrode is installed on the inner wall of the bathtub, and the RR interval (heartbeat interval) of the electrocardiographic waveform is measured using a bathtub electrocardiograph that measures the electrocardiographic signal of the bather without contact, Also, heart rate data can be created by deriving the heart rate from the reciprocal of the RR interval. Note that heart rate fluctuations are displayed using the heart rate (unit is beat / minute) in the following FIGS. 2 to 5, and heart rate intervals (RR intervals) (unit is m in FIGS. 6 to 9).
sec) is used to display heart rate fluctuations.

FIG. 2 shows a display example on the display means 3. The display means 3 has a two-dimensional screen in which the vertical axis and the horizontal axis are defined, and the scales of the vertical axis and the horizontal axis are both values of the instantaneous heart rate (minimum value: 68 beats / minute to maximum value: 90 beats / minute). In FIG. 2, when there are two temporally continuous heartbeat data, the horizontal axis represents the value of the previous heartbeat data (first heartbeat data) and the vertical axis represents the value of the subsequent heartbeat data (second heartbeat data). A predetermined marker is plotted on the coordinates (first heartbeat data, second heartbeat data) in the case of. Therefore, the magnitude relationship between the first heartbeat data and the second heartbeat data can be known from the coordinate position where the markers are plotted.

For example, when the first heartbeat data is equal to the second heartbeat data (when there is no heartbeat fluctuation), the markers are plotted at positions equidistant from the horizontal axis and the vertical axis. In other words, when the horizontal axis is regarded as the x-axis and the vertical axis is regarded as the y-axis, the marker is plotted on the straight line represented by y = x. Therefore, the state in which there is heartbeat fluctuation is a state in which the marker is plotted outside the straight line represented by y = x. Therefore, the state of heartbeat fluctuation can be known by looking at the coordinate position where the marker is plotted. In addition, markers are grouped in chronological order and plotted using markers of different types and shapes (triangle, quadrangle, round) for each group, and how heartbeat data and heartbeat fluctuations over time are plotted. The tendency of the change can be immediately known from the distribution state of the markers.

3 to 5 show how the display screen changes with the passage of time. In FIGS. 3 to 5, as in the case shown in FIG. 2, markers of different shapes are plotted as the measurement time of heartbeat data elapses, so that the transition of heartbeat fluctuation can be known. Furthermore, FIG.
In FIG. 5, the latest 20 (in the figure, rectangular display interval: 2
By drawing a figure 7 (here, a quadrangle) surrounding a marker of 0), it is possible to know the magnitude of the fluctuation of the current heartbeat data from the size of the quadrangle 7. Therefore, it can be said that the larger the drawn square 7 is, the larger the fluctuation of the heartbeat data is. Furthermore, in FIGS. 3 to 5, a two-dimensional screen (horizontal axis, vertical axis) in which the horizontal axis of the time scale and the vertical axis of the heart rate data scale are further provided, and a line graph of the heart rate data is provided. Is displayed. Further, a mesh portion 6 for drawing a time zone (20 pieces of measurement data) corresponding to the heartbeat data surrounded by the rectangle 7 is drawn. Although a quadrangle 7 surrounding the marker is drawn in the drawing, it may be any other figure such as a triangle.

How the display screen changes over time will be described below with reference to FIGS. First, FIG. 3 is an example of a screen immediately after the start of measurement, as can be seen from the line graph of the heart rate.
The heart rate fluctuates to some extent, and it can be seen from the size of the quadrangle 7a surrounding the marker that the subject is in an appropriately relaxed state. Note that the heart rate data of the mesh portion 6a in the line graph displayed at the same time corresponds to the enclosed marker.

Next, FIG. 4 shows a display example after a predetermined time has elapsed from the time point shown in FIG. As can be seen from the mesh portion 6b of the line graph showing the time variation of the heart rate,
The heart rate at the time point shown in FIG. 4 is lower than the heart rate at the time point shown in FIG. However, the size of the heartbeat fluctuation represented by the size of the quadrangle 7b surrounding the marker has almost no change from the time point shown in FIG. 3, and it can be seen that the subject is in an appropriately relaxed state.

Next, FIG. 5 shows a display example after a predetermined time has elapsed from the time point shown in FIG. As can be seen from the mesh portion 6c of the line graph showing the fluctuation in heart rate,
The heart rate at the time shown in FIG. 5 is almost the same as the heart rate at the time shown in FIG. However, the size of the quadrangle 7c surrounding the marker is much larger than that of the quadrangle 7a shown in FIG. 3, and it can be seen that the heartbeat fluctuation is much larger than that at the time shown in FIG.

As described above, the time change of the heartbeat data and the state of the heartbeat fluctuation at that time have been described with reference to FIGS. 3 to 5, and the state of the mind and body of the person to be measured is inferred from the transition thereof. can do. For example, a healthy person who does not have a heart disease can see large heart rate fluctuations in normal times, but when exercise is started and the heart is loaded,
Heart rate increases and heart rate fluctuations decrease. That is, in the display method as shown in FIG. 3, the quadrangle 7 surrounding the marker becomes small. When the heart rate fluctuation is maintained in a small state, it is known that the load level on the measurement subject is a safe and highly effective exercise state, and while watching the display screen shown in FIG. 3 in real time. The subject who is exercising can create a detailed training menu, such as exercising with a load applied to the body such that the size of the rectangle 7 surrounding the marker is reduced.

Alternatively, the heart rate and the fluctuation state of the heart rate during bathing are generally as follows. For example, when taking a bath in hot water, the body is activated over time, the heart rate rises and the heart rate fluctuation decreases as in the above-described exercise state. In addition, when bathing in lukewarm water, the body calms down over time, the heart rate decreases, and heartbeat fluctuation increases (becomes a relaxed state). In this way, when the heart rate during bathing is measured and the state of heartbeat fluctuation of the bather at that time is displayed, it is possible to confirm the state change of heartbeat fluctuation according to the hot water temperature as described above. Therefore, if you know the changes in the heartbeat fluctuation, you can know the body condition (relaxation degree, warming degree, etc.) during bathing, which allows you to determine the optimal bathing time and hot water temperature. The effect that the timing can be known in real time can be obtained.

As described above, in FIG. 3 to FIG. 5, the heart rate data is characterized by being surrounded by meshed squares, but as shown in FIG. 6 (displaying the heartbeat interval), an arbitrary character mark (graphic) is displayed. May be displayed in a rectangle. in this case,
When the heartbeat interval is close to normal (for example, 600 msec
Above (100 beats / minute or less when converted to a heart rate), a slow character image (shown in FIG. 6) is displayed, and when the heartbeat interval is short due to exercise or the like (for example, An image of an active character is displayed for 500 msec to 600 msec (100 beats / minute to 120 beats / minute when converted to a heart rate), and when the heartbeat interval is further shortened (for example, 500 msec or less (converted to a heart rate). At 120 beats / minute or more)), an image of a tired character or the like can be displayed.

The example of the display screen in the heartbeat fluctuation display system 1 is shown above, but some patterns of the heartbeat fluctuation measured during bathing will be described below.

In each of the screen examples shown in FIGS. 7 to 9, the heartbeat data of the subject being bathed is collected, but both the vertical axis and the horizontal axis show the heartbeat interval (of the electrocardiographic waveform). R-
R interval) (unit is msec)
The interval data is plotted. In addition, the marker types are plotted in the order of black squares, white squares, black circles, white circles, black triangles, and white triangles every time a certain time has elapsed.

In the screen example shown in FIG. 7, RR immediately after bathing
From the state where the interval is small (the heart rate is large) and the heart rate fluctuation is small, the RR interval is large (the heart rate is small) and the heart rate fluctuation is large with the passage of time, and the body and mind of the bather is relaxed by bathing. You can see that it has become a state. The screen example shown in FIG. 8 shows the measurement results when the subject has a heart disease (arrhythmia).
In this case, it can be seen that the RR interval becomes smaller as the bathing time elapses, and the RR interval (heartbeat interval) suddenly changes largely due to arrhythmia. Further, the screen example shown in FIG. 9 shows the measurement result when the subject has diabetes or severe heart disease. In this case, it can be seen that although the RR interval decreases as the bathing time elapses, almost no heartbeat fluctuation is observed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a heartbeat fluctuation display system.

FIG. 2 is a diagram showing a display example in a heartbeat fluctuation display system.

FIG. 3 is a diagram showing a display example in a heartbeat fluctuation display system.

FIG. 4 is a diagram showing a display example in a heartbeat fluctuation display system.

FIG. 5 is a diagram showing a display example in the heartbeat fluctuation display system.

FIG. 6 is a diagram showing a display example in the heartbeat fluctuation display system.

FIG. 7 is a diagram showing a display example in the heartbeat fluctuation display system.

FIG. 8 is a diagram showing a display example in the heartbeat fluctuation display system.

FIG. 9 is a diagram showing a display example in the heartbeat fluctuation display system.

[Explanation of symbols]

1 Heart rate fluctuation display system 2 Heartbeat data measuring means 3 display means 4 Control means 5 memory 6 mesh part 7 figures (rectangle)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroaki Dema             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. (72) Inventor Tomoaki Ueda             17 Stock Association, Nakadouji Minami-cho, Shimogyo-ku, Kyoto-shi, Kyoto Prefecture             Inside Kansai Institute of New Technology F term (reference) 4C017 AA02 AA10 BC16 BC21 CC03                       FF06

Claims (5)

[Claims] 1. A heartbeat data measuring means for measuring heartbeat data of a person to be measured, and time-series information of the heartbeat data on two-dimensional coordinates (horizontal axis, vertical axis) with vertical and horizontal axes defined. Display means for displaying, wherein the display means takes the first heartbeat data at a predetermined time point in the time-series information on either the horizontal axis or the vertical axis, and the other axis on the other side. Coordinate points (first heartbeat data, second heartbeat data) capable of identifying the magnitude relationship between the first heartbeat data and the second heartbeat data by obtaining the second heartbeat data at a time point subsequent to the first heartbeat data, or A heartbeat fluctuation display system that displays a predetermined marker on (second heartbeat data, first heartbeat data). 2. The heartbeat fluctuation display system according to claim 1, wherein the display unit cumulatively displays a plurality of the markers. 3. The plurality of markers are displayed by different types of markers grouped in chronological order.
Heartbeat fluctuation display system described in. 4. The heartbeat fluctuation display system according to claim 2, wherein a figure surrounding one or more markers corresponding to a predetermined time-series range is displayed so as to be superimposed on the one or more markers. 5. The time-series information of the heartbeat data is displayed on a two-dimensional screen (horizontal axis, vertical axis) in which a horizontal axis having a scale of time and a vertical axis having a scale of heartbeat data are defined. Claim 1 to Claim 4 further comprising a second display means.
2. A heartbeat fluctuation display system according to any one of 1.