JP5297008B2 - Biological information processing apparatus and biological information processing method - Google Patents

Description

  The present invention relates to a biological information processing apparatus and a biological information processing method.

The subject's respiratory rate, heart rate, blood pressure, SpO ₂ (oxygen saturation) and other biological information may be displayed in time series. Such a time series display includes a so-called graph trend displayed in a graph format and a so-called list trend displayed in a table format.

The graph trend displayed by the conventional biological information processing method is based on a two-dimensional orthogonal coordinate system in which the horizontal axis and the vertical axis are the measurement time axis and the parameter value (that is, the measurement value of some biological information). It is formed by drawing a waveform such as a curve or a broken line that represents a change in value over time (see, for example, Patent Document 1). This display mode is most commonly used regardless of whether the period of the parameter value to be displayed is short or long because it makes it easy to intuitively grasp the characteristics by visualizing changes over time of the parameter value. Display mode.
JP 2003-559 A

  However, in the above-described conventional biological information processing method, it may be difficult to capture the characteristic of the parameter value over time. For example, it is a case where biometric information in a relatively long period of 1 to 24 hours or several days is displayed as a graph trend instead of a relatively short period of several seconds or minutes. Assuming that parameter values can exhibit periodic changes over a long period of time, in the conventional graph trend, the waveform to be drawn extends horizontally along the time axis while moving up and down with changes in parameter values. Therefore, even if the increase / decrease in the parameter value can be easily grasped, it is difficult to intuitively grasp the periodicity of the occurrence of the increase / decrease. For example, to detect that an abnormal increase in parameter value occurred periodically, or that the peak of the parameter value that should occur periodically during normal operation did not occur periodically, the conventional graph trend It is not easy.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a biological information processing apparatus and a biological information processing method capable of easily grasping characteristics of a biological information measurement value over time.

The biological information processing apparatus of the present invention includes an acquisition unit that acquires a measurement value of biological information measured over a measurement period longer than 12 hours, and a coordinate having an annular axis as a measurement time axis and a radiation axis as a measurement value axis. And visualizing means for visualizing the trend of the acquired measurement value in the form of a radar chart by drawing the trend of the acquired measurement value on the system, and the visualization means of the coordinate system Assign a time of 0:00 or 12:00 to the coordinates located directly above the center coordinates, draw a trend of 12 hours from the time of 0:00 or 12:00 with the entire circumference of the annular axis, The latest trend which is a trend of a period after 12 hours before the latest measurement time and a past trend which is a trend of the measurement period before the latest trend are stored in the radar chart. Together is Cascade, the display lines of historical trends in line with different shading or line type of the latest trends, a configuration.

The biological information processing method of the present invention includes an acquisition step of acquiring a measurement value of biological information measured over a measurement period longer than 12 hours, and a coordinate having an annular axis as a measurement time axis and a radiation axis as a measurement value axis. Visualizing the trend of the acquired measurement value in the form of a radar chart by drawing the trend of the acquired measurement value on the system, the visualization step comprising: Assign a time of 0:00 or 12:00 to the coordinates located directly above the center coordinates, draw a trend of 12 hours from the time of 0:00 or 12:00 with the entire circumference of the annular axis, The latest trend which is a trend of a period after 12 hours before the latest measurement time and a past trend which is a trend of the measurement period before the latest trend in the measurement period Causes displayed superimposed in over preparative was the line of historical trends in the display with the latest line different shading or line type of trend, as.

  According to the present invention, it is possible to make it easier to capture the characteristics of a biological information measurement value over time.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a biological information processing apparatus according to an embodiment of the present invention.

  In FIG. 1, the biological information processing apparatus 100 includes a control unit 101, a storage unit 102, a display interface (hereinafter abbreviated as “I / F”) 103, a printer I / F 104, a measuring device I / F 105, a network I / F 106, A removable media drive 107 and an input device I / F 108 are included.

  The control unit 101 includes a CPU (Central Processing Unit) and a storage device that stores a control program executed by the CPU. The control unit 101 controls the operation of the entire apparatus described below by executing a control program, and realizes all functions described below.

  The storage unit 102 includes a magnetic recording medium and its drive device, or a semiconductor storage device, and stores data acquired from outside the biological information processing apparatus 100.

  The display I / F 103 is an I / F that connects the display 110 such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube) display device and the biological information processing apparatus 100 so that they can communicate with each other. Data input / output to / from the processing apparatus 100 passes through the display I / F 103.

  The printer I / F 104 is an I / F that connects the laser-type or thermal-head-type printer 120 and the biological information processing apparatus 100 so that they can communicate with each other. The data to be transmitted passes through the printer I / F 104.

  The measurement device I / F 105 is an I / F that connects the biological information measurement device 130 such as an electrocardiograph or a bedside monitor and the biological information processing apparatus 100 so as to communicate with each other. Data transmitted to and received from the apparatus 100 passes through the measuring device I / F 105.

  The network I / F 106 is an I / F that connects the biometric information processing apparatus 100 to a data server 140 in a network such as a LAN (Local Area Network) installed in a facility where the biometric information processing apparatus 100 is used. F, and data transmitted and received between the data server 140 and the biological information processing apparatus 100 passes through the network I / F 106. Note that the external device connected to the biological information processing apparatus 100 via the network I / F 106 may not be the data server 140 but may be a terminal device such as a personal computer.

  The removable media drive 107 loads the removable medium 150 by a tray type, slot-in type, or the like, and reads data from the loaded medium 150 and writes data to the loaded medium 150.

  The input device I / F 108 is an I / F that connects the input device 160 such as a keyboard, a mouse, and a touch panel and the biological information processing apparatus 100 so as to communicate with each other, and is input to the biological information processing apparatus 100 from the input device 160. Data passes through the input device I / F 108.

  In the above configuration, the control unit 101 constitutes an acquisition unit, a visualization unit, and a setting unit of the present invention.

  The biological information processing apparatus 100 having the above-described configuration can be used as various medical devices such as a central monitor, an electronic medical record, and a medical examination result report creation device by appropriately changing the I / F configuration with peripheral devices. Can be implemented. Furthermore, it can also be carried out by being integrated with various biological information measuring devices.

  Hereinafter, some processing examples for visualizing the trend of the measurement value of the biological information in the radar chart format in the biological information processing apparatus 100 will be described.

  First, a case where a radar chart showing measurement values in real time is displayed on the screen of the display 110 will be described using the flowchart shown in FIG.

  In step S111, a display target parameter is selected. For example, when measured values of non-invasive blood pressure, SpO2, heart rate and other biological information can be received from the biological information measuring device 130 via the measuring device I / F 105, one or more types of biological information are included. It can be selected as a display target parameter. An example of the display target parameter selection procedure is as follows. First, for example, when non-invasive blood pressure is designated by operating the input device 160 such as a keyboard, a signal indicating the designated content is input to the control unit 101 via the input device I / F 108. The control unit 101 analyzes this signal and recognizes that the designated biological information is non-invasive blood pressure. And the control part 101 sets non-invasive blood pressure as a display object parameter among several types of biometric information which can be selected. Note that the selection procedure is not limited to that described above, and display target parameters can be automatically set to eliminate the need for user operation.

  In step S112, the scale of the coordinate system of the radar chart to be displayed is set. The scale of the coordinate system can be determined, for example, by setting a measurement period to be displayed and a maximum value of measurement values that can be displayed.

  An example of the scale setting procedure is as follows. First, when the user operates the input device 160 such as a keyboard to specify, for example, 12 hours as a measurement period to be displayed, a signal indicating the specified content is input to the control unit 101 via the input device I / F 108. The The control unit 101 analyzes this signal and recognizes that the designated measurement period is 12 hours. Based on the recognition result, the control unit 101 assigns measurement times of 0 o'clock and 12 o'clock to coordinates positioned directly above the center coordinate of the coordinate system with respect to the scale of the annular axis of the radar chart coordinate system, A measurement period of 12 hours is assigned to the entire circumference of the, and one scale is provided every hour. Further, when the user operates the input device 160 such as a keyboard to specify, for example, 160 mmHg as the maximum non-invasive blood pressure that can be displayed, a signal indicating the specified content is controlled via the input device I / F 108. Input to the unit 101. The control unit 101 analyzes this signal and recognizes that the designated maximum value is 160 mmHg. Based on the recognition result, the control unit 101 assigns a measured value of 160 mmHg to the outer end of the shaft and assigns a measured value of 0 to 160 mmHg to the total length of the shaft with respect to the radial axis scale of the radar chart coordinate system. A scale is provided for every 50 mmHg. Note that the setting procedure is not limited to that described above, and the scale can be automatically set to eliminate the need for user operation.

  In step S <b> 113, a signal for displaying the coordinate system set in step S <b> 112 on the screen of the display 110 is output from the control unit 101 to the display 110 via the display I / F 103. At this time, only the coordinate system of the radar chart is displayed on the screen.

  In step S114, the measured value of the current time is acquired. The control unit 101 receives biological information at the current time from the biological information measuring device 130 via the measuring device I / F 105. Here, only the biological information selected in step S111 among the plurality of receivable biological information may be received, or all the receivable biological information is received regardless of whether or not it is selected in step S111. You may do it.

  In step S115, the measured value of the current time acquired in step S114 is plotted on the coordinate system displayed in step S113. The control unit 101 outputs, to the display 110 via the display I / F 103, a signal for plotting points or marks at the coordinates on the coordinate system obtained from the measurement value received at step S114 and the measurement time. Alternatively, a signal for plotting a line connecting the coordinate of the measurement value at the current time and the coordinate of the measurement value immediately before the coordinate may be output to the display 110 via the display I / F 103.

  The processes in steps S114 and S115 are repeatedly performed in parallel with the measurement of biological information unless the user inputs a stop instruction signal using the input device 160.

  In this way, the measured value is displayed in real time.

  FIG. 3 is an example of a radar chart displayed on the screen of the display 110 as a result of continuously performing the processing described with reference to FIG. In this example, non-invasive blood pressure (systolic blood pressure, average blood pressure, diastolic blood pressure) is selected as the biological information. Also, like the 12-hour display type analog clock, 12:00 (0 o'clock) is placed right above the center of the circle, and clockwise every 30 degrees thereafter (ie, 1 o'clock, 2 o'clock, ..., 11 o'clock) is set so that the scale of the coordinate system is set. This makes it possible to intuitively understand the trend characteristics. In the example of FIG. 3, the current time is 0:33, and a straight line is additionally drawn from the center coordinates at a position corresponding to the time. Since the straight line has the same movement in the circumferential direction as a short hand of a general timepiece by the scale setting described above, it is possible to make the trend easier to see. Furthermore, by drawing this straight line, it can be understood that the waveform on the radar chart shows measured values for the past 12 hours until 0:33, and the waveform update position is easily understood.

  FIG. 4 is another example of a radar chart displayed on the screen of the display 110 as a result of continuously performing the processing described with reference to FIG. In this example, non-invasive blood pressure (systolic blood pressure, average blood pressure, diastolic blood pressure) is selected as the biological information. The scale of the coordinate system is set so that 12 o'clock (0 o'clock) is placed right above the center of the circle and 5 minutes, 10 minutes, ..., 55 minutes are placed every 30 degrees clockwise. ing. This makes it possible to intuitively understand the trend characteristics. In the example of FIG. 4, the current time is 0:33, and a straight line is additionally drawn from the center coordinates at the position corresponding to the time. Since the straight line has the same movement in the circumferential direction as the long hand of a general timepiece by the scale setting described above, it is possible to make the trend easier to see. Furthermore, by drawing this straight line, it can be understood that the waveform on the radar chart shows measured values for the past one hour until 0:33, and the update position of the waveform is easily understood.

  Either one of the radar charts of FIGS. 3 and 4 may be selected and displayed, or both may be displayed side by side. In such a case, a method of displaying the currently viewed hour of the 12-hour trend in a different color or with higher luminance is also effective so that the relationship between the charts can be easily grasped.

  In the above-described two radar charts, a case where a trend of 12 hours or 1 hour is drawn over the entire circumference of the annular axis is taken as an example.

  In the above two radar charts, the radiation axis is fixed and the waveform update position is moved with the passage of time. However, the waveform update position is fixed and the radiation axis is moved with the passage of time. It may be (so-called moving display method).

  Next, a case where a radar chart indicating measured values measured over a certain period of time is collectively displayed on the screen of the display 110 will be described using the flowchart shown in FIG.

  In step S121, a display target parameter is selected. The details of this step are the same as step S111 in the flow of FIG.

  In step S122, the scale of the coordinate system of the radar chart to be displayed is set. The scale of the coordinate system can be determined, for example, by setting a measurement period to be displayed and a maximum value of measurement values that can be displayed.

  An example of the scale setting procedure is as follows. First, when the user operates the input device 160 such as a keyboard to specify, for example, two hours from 8:00 as a measurement period to be displayed, a signal indicating the specified content is controlled via the input device I / F 108. Input to the unit 101. The control unit 101 analyzes this signal and recognizes that the designated measurement period is 2 hours from 8:00. Based on the recognition result, the control unit 101 assigns the measurement time of 8 o'clock and 10 o'clock to the coordinates located directly above the center coordinate of the coordinate system on the scale of the annular axis of the radar chart coordinate system, A measurement period of 2 hours is assigned to the entire circumference of the slab, and one scale is provided every 10 minutes. Further, when the user operates the input device 160 such as a keyboard, for example, 160 mmHg (assuming that the selected display target parameter is non-invasive blood pressure) is designated as the maximum value of non-invasive blood pressure that can be displayed. A signal indicating the designated content is input to the control unit 101 via the input device I / F 108. The control unit 101 analyzes this signal and recognizes that the designated maximum value is 160 mmHg. Based on the recognition result, the control unit 101 assigns a measured value of 160 mmHg to the outer end of the shaft and assigns a measured value of 0 to 160 mmHg to the total length of the shaft with respect to the radial axis scale of the radar chart coordinate system. A scale is provided for every 50 mmHg. Note that the setting procedure is not limited to that described above, and the scale can be automatically set to eliminate the need for user operation.

  In step S123, the measured value measured over the past fixed period is acquired. The control unit 101 reads out the non-invasive blood pressure measurement value for 2 hours from 8:00, for example, specified as described above, from the information acquired by storing in the storage unit 102 in advance. Note that the measurement value is received from the data server 140 via the network I / F 106 instead of being read from the storage unit 102, read from the removable medium 150 by the removable media drive 107, or via the measurement device I / F 105. It can also be obtained by receiving from the biological information measuring device 130.

  In step S124, the coordinate system set in step S122 is displayed on the screen of the display 110 on the display 110 from the control unit 101 via the display I / F 103, and at the same time, the measurement values acquired in step S123 are plotted on the coordinate system. The signal to be output is output. The control unit 101 may plot points or marks at the coordinates on the coordinate system obtained from each measurement value read at step S123 and its measurement time, or the measurement values within the period may be plotted on the coordinate system. A line connecting the coordinates may be plotted.

  In this way, the batch display process of measured values is performed.

  FIG. 6 is an example of a radar chart displayed on the screen of the display 110 as a result of continuously performing the processing described with reference to FIG. In this example, non-invasive blood pressure (systolic blood pressure, average blood pressure, diastolic blood pressure) is selected as the biological information. Also, the scale of the coordinate system is set so that 8 o'clock (10 o'clock) is placed right above the center of the circle and 8:10, 8:20, ..., 9:50 are placed every 30 degrees clockwise. Is set. This makes it possible to intuitively understand the trend characteristics. In particular, it is possible to intuitively grasp the characteristics of the non-invasive blood pressure period change in 2 hours from 8:00 to 10:00.

  Note that the radar chart of FIG. 6 can be displayed not only on the screen of the display 110 but also on a document using the printer 120. This process can be performed, for example, according to the flow of FIG.

  In step S131, a print target parameter is selected. For example, when measured values of non-invasive blood pressure, SpO2, heart rate and other biological information can be received from the biological information measuring device 130 via the measuring device I / F 105, one or more types of biological information are included. It can be selected as a print target parameter. An example of the print target parameter selection procedure is as follows. First, for example, when non-invasive blood pressure is designated by operating the input device 160 such as a keyboard, a signal indicating the designated content is input to the control unit 101 via the input device I / F 108. The control unit 101 analyzes this signal and recognizes that the designated biological information is non-invasive blood pressure. And the control part 101 sets non-invasive blood pressure among several types of biometric information which can be selected as a printing object parameter. Note that the selection procedure is not limited to the above-described one, and it is also possible to automatically set the print target parameter and eliminate the need for user operation.

  In step S132, the scale of the coordinate system of the radar chart to be printed is set. The scale of the coordinate system can be determined, for example, by setting a measurement period to be printed and a maximum value of measurement values that can be printed.

  An example of the scale setting procedure is as follows. First, when the user operates the input device 160 such as a keyboard to specify, for example, two hours from 8:00 as a measurement period for printing, a signal indicating the specified content is controlled via the input device I / F 108. Input to the unit 101. The control unit 101 analyzes this signal and recognizes that the designated measurement period is 2 hours from 8:00. Based on the recognition result, the control unit 101 assigns the measurement time of 8 o'clock and 10 o'clock to the coordinates located directly above the center coordinate of the coordinate system on the scale of the annular axis of the radar chart coordinate system, A measurement period of 2 hours is assigned to the entire circumference of the slab, and one scale is provided every hour. Further, when the user operates the input device 160 such as a keyboard, for example, 160 mmHg (assuming that the selected print target parameter is non-invasive blood pressure) is designated as the maximum value of non-invasive blood pressure that can be printed. A signal indicating the designated content is input to the control unit 101 via the input device I / F 108. The control unit 101 analyzes this signal and recognizes that the designated maximum value is 160 mmHg. Based on the recognition result, the control unit 101 assigns a measured value of 160 mmHg to the outer end of the shaft and assigns a measured value of 0 to 160 mmHg to the total length of the shaft with respect to the radial axis scale of the radar chart coordinate system. A scale is provided for every 50 mmHg. Note that the setting procedure is not limited to that described above, and the scale can be automatically set to eliminate the need for user operation.

  In step S133, the measured value measured over the past fixed period is acquired. The details of this step are the same as step S123 in FIG.

  In step S134, the control unit 101 causes the printer 120 to print the coordinate system set in step S132 on the printer 120 via the printer I / F 104, and at the same time, plots the measurement values acquired in step S133 on the coordinate system. Is output. The control unit 101 may plot points or marks on the coordinates on the coordinate system obtained from each measurement value read in step S133 and the measurement time, or the measurement values within the period may be plotted on the coordinate system. A line connecting the coordinates may be plotted.

  In this way, the batch printing process of measured values is performed.

  In the above, several processing examples for visualizing the trend in the radar chart format have been described, and several radar charts have been described as output examples. However, the radar chart display format can be variously changed and implemented. . In the radar charts of FIGS. 3, 4, and 6 described above, the trend data that has passed a certain period of time is overwritten and deleted in order from the oldest, but in order to facilitate comparison with the latest trend data In addition, it is possible to adopt a form in which trend data of the past two to three revolutions is overwritten with light colors or dotted lines.

  As described above, according to the present embodiment, since the measurement value of biological information measured over a certain period is displayed or printed in the radar chart format, it is not a relatively short period of several seconds or minutes, but 1 to 24 When biological information in a relatively long period such as time or several days is displayed or printed as a trend, it is possible to easily grasp the periodicity of changes in measured values intuitively.

  The embodiment of the present invention has been described above. The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this. That is, the description of the configuration of each device and the operation during use of each device is an example, and it is obvious that various modifications and additions to these examples are possible within the scope of the present invention.

The block diagram which shows the structure of the biological information processing apparatus which concerns on one embodiment of this invention The flowchart which shows the real-time display process which concerns on one embodiment of this invention The figure which shows an example of the radar chart type | mold trend which concerns on one embodiment of this invention The figure which shows the other example of the radar chart type trend which concerns on one embodiment of this invention The flowchart which shows the batch display process which concerns on one embodiment of this invention The figure which shows the further another example of the radar chart type | mold trend which concerns on one embodiment of this invention. The flowchart which shows the printing processing which concerns on one embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Biological information processing apparatus 101 Control part 102 Storage part 103 Display I / F
104 Printer I / F
105 Measuring instrument I / F
108 Input device I / F
110 Display 120 Printer 130 Biological Information Measuring Device 160 Input Device

Claims (4)

An acquisition means for acquiring a measurement value of biological information measured over a measurement period longer than 12 hours;
Visualize the trend of acquired measurement values in the form of a radar chart by drawing the trend of acquired measurement values on a coordinate system with the annular axis as the measurement time axis and the radial axis as the measurement value axis And
Have
The visualization means includes
Assign a time of 0:00 or 12:00 to the coordinates located directly above the center coordinate of the coordinate system, and draw a trend of 12 hours from the time of 0:00 or 12:00 with the entire circumference of the annular axis;
In the radar chart, a latest trend that is a trend in a period after 12 hours before the latest measurement time in the measurement period and a past trend that is a trend in the measurement period before the latest trend in the measurement period. overlaid with is displayed, and displays the lines of historical trends in line with different shading or line type of the latest trends,
Biological information processing device.   The biological information processing apparatus according to claim 1, wherein the visualization unit displays a trend of acquired measurement values on a screen.   The biological information processing apparatus according to claim 1, wherein the visualization unit prints a trend of the acquired measurement value on a document. An acquisition step of acquiring a measurement value of biological information measured over a measurement period longer than 12 hours;
Visualize the trend of acquired measurement values in the form of a radar chart by drawing the trend of acquired measurement values on a coordinate system with the annular axis as the measurement time axis and the radial axis as the measurement value axis Step,
Have
The visualization step includes
Assign a time of 0:00 or 12:00 to the coordinates located directly above the center coordinate of the coordinate system, and draw a trend of 12 hours from the time of 0:00 or 12:00 with the entire circumference of the annular axis;
In the radar chart, a latest trend that is a trend in a period after 12 hours before the latest measurement time in the measurement period and a past trend that is a trend in the measurement period before the latest trend in the measurement period. overlaid with is displayed, and displays the lines of historical trends in line with different shading or line type of the latest trends,
Biological information processing method.

Images