JP7076151B2 - Vital data display device and vital data display program - Google Patents

Description

The present invention relates to a vital data display device and a vital data display program for displaying vital data such as heart rate as a graph.

Conventionally, a vital data display device that displays vital data such as heart rate as a graph has been known. "Vital data" means biological information that can be acquired from the human body. The sleep monitoring device disclosed in Patent Document 1 is a kind of vital data display device. This conventional device detects the body movement of the care recipient by a pressure sensor placed under the care recipient's body, removes noise, and removes noise, such as heart rate, respiratory rate, turning over, coughing, swelling, and getting out of bed. It is configured to be organized and divided into signals such as, and provided as a graph in real time to a caregiver who monitors at a distance (see the abstract of Patent Document 1).

To display vital data as a graph, it is common to display changes in measured values as a set of points, broken lines, or curves on a coordinate system with the time axis as the horizontal axis and the measured value axis as the vertical axis. Is. The graph disclosed in Patent Document 1 is also one of them (see FIG. 3 of Patent Document 1). However, in such a general display form, there is a problem that when the measured value fluctuates momentarily due to a sudden change in physical condition, it is not easy to visually grasp the fluctuation.

Japanese Unexamined Patent Publication No. 2009-82511

The present invention has been made in view of the above problems, and an object of the present invention is to provide a vital data display device and a vital data display program for displaying vital data as a graph in a form in which momentary fluctuations can be easily visually grasped. do.

In order to achieve the above object, the first aspect of the present invention is a vital data display device in which a vital data receiving unit that accepts input of vital data of a subject and the vital data receiving unit are used. It includes a display data generation unit that generates display data for displaying the received vital data on a display screen, and a display data output unit that outputs the generated display data. Then, the display data displays the vital data by arranging a predetermined figure on the coordinate system having the time axis and the vital data axis as the coordinate axes, and the position of the figure on the coordinate system is set. , The value of the vital data at each time is displayed, and the size of the figure emphasizes the variation of the vital data from the representative value indicating the tendency of the vital data.

According to this configuration, the vital data can be visually recognized by displaying the output display data on the display screen. The value of the vital data at each time can be visually recognized by the position on the coordinate system of the predetermined figure displayed on the display screen. Further, depending on the size of the figure, it is possible to visually recognize the fluctuation of the vital data at each time from the representative value. Since the fluctuation from the representative value is shown for the vital data at each time, it is possible to grasp whether or not there is a change in the vital data. Since the fluctuation from the representative value of the vital data at each time is emphasized by the size of the figure, it is possible to easily grasp the instantaneous fluctuation of the vital data, which is difficult to grasp only by the position of the figure. can. The figure is, for example, a circle.

The second aspect of the present invention is the vital data display device according to the first aspect, wherein the area of the figure is a second or higher power of the ratio or difference of the vital data to the representative value. Is defined to contain components proportional to.

According to this configuration, the fluctuation from the representative value of the vital data is emphasized by the size of the figure by a simple operation.

The third aspect of the present invention is the vital data display device according to the first or second aspect, and the representative value is an average value or a median value of the vital data over a predetermined time range.

According to this configuration, it can be obtained by a representative value of vital data or by a simple operation.

The fourth aspect of the present invention is a vital data display device according to any one of the first to third aspects, wherein the vital data includes heart rate, pulse rate, respiratory rate, body temperature, and blood oxygen. One of the saturation levels.

According to this configuration, among the vital data, the data that may cause a momentary change in relation to the sudden change in the physical condition of the subject is targeted for display, so that it is particularly suitable for risk avoidance due to the sudden change in the physical condition. It is useful.

The fifth aspect of the present invention is a vital data display device according to any one of the first to fourth aspects, and the vital data receiving unit receives input of vital data of a plurality of subjects. .. Then, the display data generation unit generates the display data for each of the plurality of subjects, and displays the display data side by side in descending order of the maximum size of the figure.

According to this configuration, the vital data is displayed in the order of the subjects with the largest fluctuations in the vital data, so that it is easy to pay attention to the vital data of the subjects with the largest fluctuations.

The sixth aspect of the present invention is a vital data display device according to any one of the first to fifth aspects, further comprising a display screen for displaying the output display data.
According to this configuration, the display data displayed on the display screen can be visually observed without connecting the external display screen to the display device.

The seventh aspect of the present invention is a vital data display program, which causes a computer to function as a vital data display device according to any one of the first to sixth aspects.
The vital data display program having this configuration can make the computer function as a vital data display device according to each aspect of the present invention.

As described above, according to the present invention, a vital data display device and a vital data display program for displaying vital data as a graph are realized in a form in which momentary fluctuations can be easily visually grasped.

It is a figure which illustrates the structure of the vital data display system which includes the vital data display apparatus by one Embodiment of this invention. It is a block diagram which illustrates the structure of the vital data display device of FIG. It is a graph which illustrates the vital data displayed by the vital data display device of FIG. It is another graph which illustrates the vital data displayed by the vital data display device of FIG. It is a graph which shows the display example of the vital data as a comparative example. It is another graph which shows the display example of vital data as a comparative example. It is still another graph which illustrates the vital data displayed by the vital data display device of FIG.

FIG. 1 is a diagram illustrating a configuration of a vital data display system including a vital data display device according to an embodiment of the present invention. The vital data display system 100 includes a sleep sensor 1, a user communication terminal 3, and a network 5 in addition to the vital data display device 101. The sleep sensor 1, the user communication terminal 3, and the network 5 are devices that are directly or indirectly connected to the vital data display device 101 and cooperate with the vital data display device 101.

The vital data display device 101 is a device that receives input of vital data of the subject 11, generates display data that displays the received vital data in the form of a graph, and outputs the generated display data. Thereby, the vital data display device 101 can be useful for health management, occupational therapy, physical therapy, medical diagnosis, medical treatment, etc. of the subject 11. The vital data display device 101 is incorporated in the computer 10 in the illustrated example. That is, by installing and starting a specific application on the computer 10, the processing device (processor) such as the central processing unit (CPU) of the computer 10 functions as the vital data display device 101.

The sleep sensor 1 is a sensor that automatically acquires the sleep data of the subject 11, and as an example, has a communication function of wirelessly transmitting the acquired data to the user communication terminal 3 or the vital data display device 101. Have. The sleep data is data related to the sleep of the subject 11 such as the heart rate and the respiratory rate when sleeping. In the illustrated example, the sleep sensor 1 is a mat-shaped sensor used by the subject 11 laid under the bedding lying down. Such a form of sleep sensor 1 is already commercially available and well known.

The user communication terminal 3 is a smartphone owned by the user in the illustrated example. The user is the subject 11 himself or a relative who takes care of the subject 11. By installing a specific application on the user communication terminal 3 in advance, the user communication terminal 3 can communicate with the sleep sensor 1. Communication can prevent information leakage, for example, by requiring the input of an identification code (ID) and a password. The measurement data received by the user communication terminal 3 from the sleep sensor 1 is transmitted to the vital data display device 101 through the network 5. Information leakage can also be prevented in communication between the user communication terminal 3 and the vital data display device 101, for example, by requiring the input of an identification code (ID) and a password. The network 5 is the Internet in the illustrated example.

FIG. 1 shows an example in which vital data of a subject such as a heart rate and a respiratory rate is measured as sleep data by the sleep sensor 1. On the other hand, vital data such as heart rate, pulse rate, respiratory rate, body temperature, and blood oxygen saturation are measured for the subject 11 by a measuring device other than the sleep sensor 1, and the vital data is the vital data. It may be input to the display device 101.

As illustrated in FIG. 1, the vital data display system 100 may have a server 9 connected to the network 5. As a result, for example, the vital data of a large number of subjects 11 is accumulated in the server 9 through, for example, each user communication terminal 3, and one or a plurality of specific subjects selected by the vital data display device 101. The vital data of the person 11 may be input to the vital data display device 101 through the server 9. It should be noted that even in the communication between the computer 10 and the server 9, information leakage can be prevented by requiring the input of the identification code (ID) and the password, for example.

FIG. 2 is a block diagram illustrating the configuration of the vital data display device 101. The vital data display device 101 has an interface 13, a vital data reception unit 15, a display data generation unit 16, and a display data output unit 17. The interface 13 is a device portion that enables communication between the vital data display device 101 itself and the external device according to a predetermined protocol for each external device. Sleep sensor 1, user communication terminal 3, server 9, input device 27 such as keyboard, output device 29, 33 such as printer 29 or display (display screen) 33, storage medium 31 such as USB memory or CDROM, and vital data display. Communication with the device 101 is done through the interface 13.

The vital data reception unit 15 accepts input of input data including vital data of the subject 11. The display data generation unit 16 generates display data for displaying the input data for which the input data reception unit 15 has received the input on the display screen. The display data output unit 17 outputs the display data generated by the display data generation unit 16. The display data output by the display data output unit 17 is transmitted to, for example, the user communication terminal 3 or the display 33 through the interface 13. As a result, the user of the vital data display device 101, such as a caregiver, a caregiver, a nurse, an occupational therapist, a physical therapist, and a doctor of the subject 11, can visually recognize the vital data of the subject 11. , Appropriate measures can be taken for the subject 11 based on the contents of the visually recognized vital data.

The display data generation unit 16 generates data for displaying the time change of vital data such as heart rate in the form of a graph. The generated display data emphasizes the magnitude of the fluctuation of the vital data when there is a fluctuation of the vital data from the representative vital data value of the subject 11, for example, the average value or the median value retroactive to the past. .. The details will be described later with an example of a graph.

The vital data receiving unit 15 can also receive input of input data including vital data of a plurality of subjects 11. The display data generation unit 16 can also generate data for displaying the graphs representing the time changes of the vital data of the plurality of subjects 11 side by side. Further, the display data generation unit 16 has a display data sorting unit 21, and the display data sorting unit 21 can sort the graphs of a plurality of subjects 11. The sorting is performed so that the graphs are arranged in the order of the subject 11 having the largest variation from the representative value of the vital data. The sorting is performed automatically or by the user inputting a command through the input device 27. The details of the sorting will be described later while exemplifying the graph.

The computer 10 (see FIG. 1) in which the vital data display device 101 is incorporated may be provided in, for example, an occupational therapist / physical therapist's facility, a hospital, or the like, or the occupational therapist or the like may be examined. It may be a mobile computer that can be carried to the home of the person 11, for example, a smartphone. When the subject 11 is hospitalized in a facility, hospital, etc. and the computer 10 is equipment of those facilities, hospitals, etc., the communication between the vital data display device 101 and the sleep sensor 1 is performed by the user. It is also possible to perform it directly without going through the communication terminal 3.

The vital data display device 101 not only acquires the vital data of the subject 11 in real time and outputs the data for displaying the acquired vital data as a graph in real time, but is also stored in, for example, the storage medium 31 or the server 9. You may acquire the vital data of the subject 11 and output the data for displaying the acquired vital data as a graph. As a result, the user of the vital data display device 101 such as an occupational therapist can statically visually recognize the past vital data of the subject 11, and the subject 11 is based on the content of the visually recognized vital data. Can take appropriate measures

FIG. 3 is a graph illustrating vital data displayed by the vital data display device 101. As vital data, the heart rate of the subject 11 is exemplified. The horizontal axis of the graph represents the time in minutes, and the vertical axis represents the measured heart rate per minute. The measured heart rate data is displayed every minute by a circular bubble. That is, the position on the horizontal axis of the bubble represents the measured time, and the position on the vertical axis represents the heart rate measured at that time. The bubble also expresses the magnitude of the fluctuation from the representative value of the heart rate of the subject 11 by its size, and also expresses the magnitude of the fluctuation by emphasizing it. The representative value is not an instantaneous value, but a value representing the tendency of vital data over a certain period of time. A certain period can be set, for example, in a time range that goes back to the past from the measurement time. The length of a certain period can be determined according to the type of vital data and the speed of transition of the representative value.

The representative value can be calculated, for example, as an average value in a predetermined time range that goes back to the past with respect to each measurement time. It is also possible to use the median instead of the mean. FIG. 3 is not an example in which the heart rate, which is vital data, is acquired in real time and displayed as a graph in real time. The displayed example is shown. Therefore, the representative value is calculated as the average value of the heart rate in the time range going back to the measurement start time with the final measurement time as a reference, not with each measurement time as a reference. In the period when the measurement is not performed, the measured value becomes zero, but the measured value in the period when the measurement is not performed is not reflected in the calculation of the representative value.

In order to highlight and display the variation of the vital data from the representative value, for example, the area of the bubble can be calculated to be proportional to the second or higher power of the ratio of each measured value to the representative value. .. In the illustrated example, the area of the bubble is calculated to be proportional to the 7th power of the ratio of each measured value to the representative value. By using the exponentiation calculation, the fluctuation from the representative value of the vital data can be easily emphasized and displayed by the area of the bubble. The power order can be set to an appropriate value for each type of vital data, for example.

It is also possible to use the power of difference instead of the power of the ratio of each measured value to the representative value to represent the area of the bubble. In this case, the difference means the value obtained by subtracting the smaller value from the larger value so as not to be a negative value. When the difference is zero, that is, when the measured value matches the representative value, the size of the bubble becomes zero and the measured value is not displayed on the graph. In order to avoid this, the area of the bubble can be a value obtained by adding a component proportional to the power of the difference to a certain size for displaying a small point that can display a measurement point. Alternatively, when the component proportional to the power of the difference is less than a certain size, the area of the bubble is a certain size, and when it is more than a certain size, the component proportional to the power of the difference is a bubble. It can also be the area of.

In FIG. 3, in order to make the change of the measurement point easier to understand, the change of the measurement point along the time is displayed by a polygonal line. On the other hand, the graph illustrated in FIG. 4 shows the change of the heart rate over time without a line. FIG. 4 is a graph display of the same measurement data as in FIG. 3, and is different from FIG. 3 only in that a polygonal line is not displayed. In any display format, fluctuations from the representative values of vital data are highlighted and displayed according to the size of the bubble. Therefore, the user who visually observes the graph can easily grasp the momentary fluctuation from the representative value of the vital data, which is difficult to grasp only by the position of the bubble. Thereby, the change of the subject 11 appearing in the vital data can be easily grasped.

5 and 6 are graphs showing a display example of vital data as a comparative example. FIG. 5 expresses the change of the heart rate, which is vital data, with respect to time only by a general curve. FIG. 6 also represents changes in heart rate over time with only general measurement points. In each case, the measurement data is the same as the measurement data in FIGS. 3 and 4. In these comparative examples, it will be understood that the instantaneous fluctuation from the representative value of the heart rate is difficult to visually recognize.

FIG. 7 is yet another graph illustrating the vital data displayed by the vital data display device 101. In the illustrated example, graphs showing the time change of vital data of a plurality of subjects 11 are displayed side by side. Until a certain time, the graphs of the plurality of subjects 11 are displayed in parallel in the order illustrated in FIG. 7A. At a certain time, the user of the vital data display device 101 inputs a command through the input device 27, so that the graphs of the plurality of subjects 11 displayed are rearranged in the order illustrated in FIG. 7 (b). .. In the illustrated example, the maximum value of the fluctuation from the representative value, that is, the maximum size of the bubble is compared among the plurality of subjects 11 within the displayed measurement time range, and the maximum value of the fluctuation is large. The graphs are sorted in order. The sorting may be performed automatically without waiting for the user's command.

When the vital data display device 101 acquires vital data of a plurality of subjects 11 in real time and displays the acquired vital data as a graph in real time, the vital data earlier than the current time is used as a reference. The maximum value of the fluctuation, that is, the maximum size of the bubble may be compared among the plurality of subjects 11, and the graphs may be rearranged in descending order of the maximum value of the fluctuation. The sorting may be performed automatically each time the order of the maximum value of the variation changes, or may be performed in response to a user command. In FIG. 7, the change in the size of the bubble is not shown.

1 Sleep sensor, 3 User communication terminal, 5 Network, 9 Server, 10 Computer, 11 Subject, 13 Interface, 15 Vital data reception unit, 16 Display data generation unit, 17 Display data output unit, 21 Display data sorting unit, 27 Input device, 29 Printer (output device), 31 Storage medium, 33 Display (display screen, output device), 100 Vital data display system, 101 Vital data display device.

Claims (7)

The vital data reception unit that accepts the input of the subject's vital data,
A display data generation unit that generates display data for displaying the vital data received by the vital data reception unit on a display screen, and a display data generation unit.
A display data output unit that outputs the generated display data is provided.
The display data displays the vital data by arranging a predetermined figure on a coordinate system having a time axis and a vital data axis as coordinate axes, and the position of the figure on the coordinate system is each. A vital data display device that displays the value of the vital data at a time and emphasizes the variation of the vital data from a representative value in which the size of the figure indicates a tendency of the vital data. The vital data display device according to claim 1, wherein the area of the graphic is determined to include a component proportional to a second or higher power of the ratio or difference of the vital data to the representative value. The vital data display device according to claim 1 or 2, wherein the representative value is an average value or a median value of the vital data over a predetermined time range. The vital data display device according to any one of claims 1 to 3, wherein the vital data is any one of heart rate, pulse rate, respiratory rate, body temperature, and blood oxygen saturation. The vital data reception unit accepts input of vital data of a plurality of subjects and receives the input.
Claims 1 to 4 are such that the display data generation unit generates the display data for each of the plurality of subjects and displays the display data side by side in descending order of the maximum size of the figure. Vital data display device according to any one of. The vital data display device according to any one of claims 1 to 5, further comprising a display screen for displaying the output display data. A vital data display program that causes a computer to function as the vital data display device according to any one of claims 1 to 6.

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