JP2009045123A - Biological information processing device and biological information processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily analyze the waveform while retaining the visibility of the waveform of biological information on the display screen. <P>SOLUTION: In the biological information processing device 10, an input device interface 18 inputs a signal to specify at least a part of the waveform of the biological information displayed on the screen of a display. When the signal is input, a control part 11 displays meshes in such a way as superimposed on the specified part of the waveform on the display screen as analysis assisting information to be provided for the analysis of the waveform of the biological information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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

Some biological information processing apparatuses can display various biological information such as an electrocardiogram waveform, a heart sound diagram, and a pulse wave on a screen together with auxiliary information. For example, the conventional apparatus described in Patent Document 1 facilitates observation of each waveform by displaying marker lines superimposed on a plurality of types of waveforms in synchronization with the cardiac cycle of an electrocardiogram.
JP-A-5-161612

  However, in the above-described conventional apparatus, the marker line displayed as auxiliary information is useful for comparing different types of waveforms such as an electrocardiogram and a pulse wave that are displayed synchronously on the screen. It is not useful for detailed analysis of waveforms on the screen.

  In general, when performing detailed waveform analysis, waveforms are printed on recording paper that is preprinted with fine vertical and horizontal ruled lines, such as graph paper. Such ruled line displays are applied to waveform analysis on the screen. In such a case, the display of fine ruled lines may affect the visibility of the waveform.

  For this reason, it has been required to display auxiliary information that can facilitate waveform analysis on the screen together with the waveform.

  The present invention has been made in view of this point, and provides a biological information processing apparatus and a biological information processing method that can facilitate waveform analysis while maintaining the visibility of the waveform of biological information on the screen. With the goal.

  The biological information processing apparatus of the present invention is a biological information processing apparatus that displays a waveform of biological information on a screen of a display, an input unit that inputs a signal designating at least a part of the waveform displayed on the screen; And a display means for displaying a mesh superimposed on a waveform of a designated portion when input.

  The biological information processing method of the present invention includes a step of displaying a waveform of biological information on a display screen, a step of inputting a signal designating at least a part of the waveform displayed on the screen, and the input of the signal And a step of displaying a mesh superimposed on the waveform of the designated portion.

  According to the present invention, it is possible to facilitate waveform analysis while maintaining the visibility of the waveform of biological information on the screen.

  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 10 includes a control unit 11, a storage unit 12, a display interface (hereinafter abbreviated as “I / F”) 13, a network I / F 16, a removable media drive 17, and an input device I / F 18. Have.

  The control unit 11 includes a CPU (Central Processing Unit) and a storage device that stores a control program executed by the CPU. The control unit 11 controls the operation of the entire apparatus described below by executing a control program, and realizes all functions described below.

  The storage unit 12 includes a magnetic recording medium and its driving device, or a semiconductor storage device, and stores data acquired from outside the biological information processing apparatus 10.

  The display I / F 13 is an I / F that connects the display 30 such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube) display device and the biological information processing apparatus 10 so that they can communicate with each other. Data input / output to / from the processing device 10 passes through the display I / F 30.

  The network I / F 16 connects the data server 60 in a network such as a LAN (Local Area Network) installed in a facility where the biological information processing apparatus 10 is used and the biological information processing apparatus 10 so as to communicate with each other. F, and data transmitted and received between the data server 60 and the biological information processing apparatus 10 passes through the network I / F 16. The external device connected to the biological information processing apparatus 10 via the network I / F 16 may not be the data server 60 but may be a terminal device such as a personal computer.

  The removable media drive 17 loads the removable medium 70 by a tray type, slot-in type, or the like, reads data from the loaded removable medium 70, and writes data to the loaded removable medium 70. Depending on the type of the removable medium 70, an I / F suitable for the type may be provided in the biological information processing apparatus 10 instead of the removable media drive 17.

  The input device I / F 18 is an I / F that connects the input device 80 such as a keyboard, a mouse, and a touch panel and the biological information processing apparatus 10 so that they can communicate with each other, and is input from the input device 80 to the biological information processing apparatus 10. Data passes through the input device I / F 18.

  In the above configuration, the control unit 11 has a function as a display unit and a calculation unit of the present invention, and the input device I / F 18 has a function as an input unit of the present invention.

  Although the configuration of the biological information processing apparatus 10 has been described above, the biological information processing apparatus 10 connects the biological information measuring device such as an electrocardiogram and a bedside monitor and the biological information processing device 10 so that they can communicate with each other. A measurement device I / F that realizes data transfer to the biological information processing apparatus 10 may be further provided.

  Next, analysis auxiliary information display processing executed in the biological information processing apparatus 10 will be described with reference to FIGS.

  FIG. 2 is a flowchart for explaining the display processing of analysis auxiliary information according to the present embodiment, and FIGS. 3 to 10 are diagrams for explaining display modes of waveforms and various types of analysis auxiliary information. is there. Here, a case where a mesh, a reference line, an auxiliary line, and time length information are displayed as analysis auxiliary information together with an electrocardiogram waveform will be described as an example.

  First, in step S1, the control unit 11 acquires electrocardiogram waveform data from the data server 60 via, for example, the network I / F 16, outputs the acquired data to the display 30 via the display I / F 13, and displays the electrocardiogram on the screen of the display 30. A waveform is displayed (step S1). As shown in FIG. 3, an electrocardiogram waveform 101 is displayed on the screen 100 together with the mouse pointer 102.

  The control unit 11 may store the electrogram waveform data acquired from the data server 60 in the storage unit 12 and output the stored data to the display 30. Further, the control unit 11 may acquire electrocardiogram waveform data from the removable medium 70 via the removable media drive 17. The acquired electrocardiogram waveform data includes the electrocardiogram waveform data obtained by measurement during the period when the user designates the period by operating the input device 80 such as a keyboard.

  In step S2, the user operates the mouse as the input device 80 to move the mouse pointer displayed on the screen 100 to a desired drag start coordinate, and then starts dragging the mouse pointer. When dragging is started, input of a signal (hereinafter simply referred to as “designated signal”) for designating the analysis target range of the electrocardiogram waveform from the input device 80 to the control unit 11 via the input device I / F 18 is started. At this time, the control unit 11 outputs a signal for displaying the reference line and the auxiliary line on the screen of the display 30 to the display 30 via the display I / F 13 (step S4).

  Specifically, at the start of dragging, a designation signal is input that designates the position on the electrocardiogram waveform whose horizontal axis coordinates are the same as the dragging start coordinates of the mouse pointer as the starting point of the analysis target range. During dragging, a designation signal for designating the position on the electrocardiogram waveform whose horizontal axis coordinates are the same as the current coordinates of the mouse pointer as the end point of the analysis target range is input. Since the start point is invariant, it is determined at the start of the drag, but the end point moves with the drag, so it is not determined during the drag and is determined at the end of the drag.

  Thereby, as shown in FIG. 4, when the dragging of the mouse pointer 102 is started, the reference line 103 is displayed. The reference line 103 passes through the start point designated by the designation signal, extends perpendicularly to the time axis direction of the electrocardiogram waveform 101, and intersects the electrocardiogram waveform 101. As shown in FIG. 5, when the mouse pointer 102 is moved by dragging, auxiliary lines 104, 105, and 106 are displayed. The auxiliary line 104 is a line that moves along the arrow a along with the movement of the mouse pointer 102, passes through the end point designated by the designation signal, extends parallel to the reference line 103, and intersects the electrocardiogram waveform 101. The auxiliary line 105 is a line that moves while maintaining the distance between the reference line 103 and the reference line 103 equal to the distance between the reference line 103 and the auxiliary line 104 along the arrow b as the mouse pointer 102 moves. And extends in parallel with the ECG waveform 101. The auxiliary line 106 is a line that moves while keeping the distance between the auxiliary line 104 equal to the distance between the reference line 103 and the auxiliary line 104 along the arrow c as the mouse pointer 102 moves. It extends parallel to the line 103 and intersects the electrocardiogram waveform 101.

  4 to 10, the illustration of the screen 100 is omitted for simplification of the drawings.

  Moreover, in this Embodiment, although the number of the auxiliary lines displayed is three, it is not limited to this number. In other words, the display of the auxiliary line 104 is essential, but the display of the auxiliary lines 105 and 106 is arbitrary, and the number of auxiliary lines for arbitrary display may not be two. However, in order to display the minimum auxiliary information necessary for waveform analysis and to maintain the visibility of the waveform being displayed, the range may be limited so that auxiliary lines are not displayed over the entire screen. preferable.

  In this embodiment, since the analysis target range is designated by a mouse operation, the waveform analysis work can be performed efficiently. However, the scope of revision can be specified by other methods.

  In step S5, the user moves the mouse pointer by the mouse operation to a desired drag end coordinate, and then finishes dragging the mouse pointer. When the dragging is finished, the input of the designation signal from the input device 80 (that is, the mouse) to the control unit 11 is finished (step S6).

  Specifically, at the end of dragging, a designation signal is input to designate the position on the electrocardiogram waveform whose horizontal axis coordinate is the same as the dragging end coordinate of the mouse pointer as the end point of the analysis target range. Therefore, the control unit 11 outputs a signal for fixing the position of the auxiliary line displayed on the screen of the display 30 to the display 30 via the display I / F 13.

  Thereby, as shown in FIG. 6, the display positions of the reference line 103 and the auxiliary lines 104 to 106 are determined. Since these lines are always arranged at equal intervals, for example, by specifying the start point and the end point with two adjacent R waves as shown in FIG. Uniformity can be determined. In addition, since the auxiliary line is not displayed in the other portions of the cardiac cycle, the visibility of the electrocardiogram waveform can be maintained well.

  In step S7, the control unit 11 determines whether or not the drag start coordinates and drag end coordinates recognized at the start and end of the drag operation are within a predetermined effective range (FIG. 7).

  In step S8, the control unit 11 calculates the time length of the analysis target range from the start point to the end point. In step S9, the control unit 11 outputs a signal for displaying the mesh and the time length information on the screen of the display 30 to the display 30 via the display I / F 13 substantially simultaneously with the end of the drag. The mesh has a grid formed by ruled lines as time scales for measuring the time interval of the characteristic portion of the waveform and ruled lines as amplitude scales for measuring the amplitude of the waveform. The time length information indicates the time length calculated in step S8.

  Thereby, as shown in FIG. 8, the mesh 108 and the time length information 109 are displayed. One of the vertical ruled lines of the mesh 108 is displayed aligned with the starting point. This makes it easy to determine the interval from the start point on the electrocardiogram waveform. Since the mesh 108 is displayed superimposed on the electrocardiogram waveform included in the analysis target range from at least the start point to the end point, waveform analysis within the analysis target range becomes easy. In the present embodiment, since the mesh 108 is displayed over the range from the auxiliary line 105 to the auxiliary line 106 that is wider than the analysis target range, waveform analysis (time interval measurement and amplitude measurement) in a wider range is possible. In addition, since the time length information 109 indicating the time length of the designated analysis target range is displayed, the time interval measurement of the characteristic portion of the waveform can be made more efficient.

  In step S10, the control unit 11 displays the mesh 108, the reference line 103, the auxiliary lines 104 to 106, and the time length information from the start of the mesh display until a certain period of time has elapsed, and then displays a signal for erasing them. It outputs to the display 30 via F13.

  Thereby, the screen of the display 30 is in a state where only the electrocardiogram waveform 101 and the mouse pointer 102 are displayed as shown in FIG. 3, for example. As described above, in the present embodiment, analysis auxiliary information such as a mesh is displayed only when necessary, so that the visibility of the waveform can be maintained well.

  In step S7, if the drag start coordinate or drag end coordinate is outside the valid range, it is determined that an appropriate operation has not been performed, and the process proceeds to step S11. For example, as shown in FIG. 9, this corresponds to the case where the drag end coordinates are located outside the predetermined effective range 107.

  In step S11, in order to suppress the execution of useless processing, the control unit 11 displays error information indicating the fact that an error has occurred on the screen of the display 30 simultaneously with the end of the drag without calculating the time length of the analysis target range. A signal to be displayed is output to the display 30 via the display I / F 13.

  As a result, as shown in FIG. 10, the error information 110 is displayed on the screen, but the mesh is not displayed. This can prompt the user to perform a re-operation.

  In step S12, the control unit 11 displays the error information 110, the reference line 103, and the auxiliary lines 104 to 106 from the start of the error information display until a lapse of a certain period of time, and then displays a signal for deleting them as a display I / F 13 Is output to the display 30.

  Thereby, the screen of the display 30 is in a state where only the electrocardiogram waveform 101 and the mouse pointer 102 are displayed as shown in FIG. 3, for example.

  When the drag start coordinate or drag end coordinate is outside the valid range in step S7, the analysis auxiliary information display process is immediately terminated, and no error notification such as error information display is performed. There can be variations. Alternatively, there may be a modification in which the display processing of the revision auxiliary information is ended after a beep sound is generated instead of the error information display. These modified examples have improved operability compared to the error information display example described above, and are more convenient for the skilled person.

  The analysis auxiliary information display process is executed as described above. Here, the case where the biological information waveform is an electrocardiogram waveform is taken as an example, but other biological information such as an impedance respiratory waveform may be used.

  As described above, according to the present embodiment, a part of the waveform displayed on the screen is designated as the analysis target range, and the mesh is superimposed on the waveform in the range for a certain period from the time the range is designated. Since it is displayed, detailed analysis of waveform characteristics such as measurement of time intervals can be easily performed. Moreover, since the mesh is not displayed when it is not necessary, the visibility of the waveform on the screen can be maintained.

  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 display process of the analysis auxiliary information which concerns on one embodiment of this invention The figure which shows the initial display screen in the display process shown in FIG. The figure which shows the display screen at the time of the drag start in the display process shown in FIG. The figure which shows the display screen during dragging in the display process shown in FIG. The figure which shows the display screen at the time of the completion | finish of dragging in the display process shown in FIG. The figure for demonstrating the effective range of the mouse pointer coordinate in the display process shown in FIG. The figure which shows the display screen of the mesh in the display process shown in FIG. The figure for demonstrating the validity judgment of the mouse pointer coordinate in the display process shown in FIG. The figure which shows the display screen of the error information in the display process shown in FIG.

Explanation of symbols

10 Biological Information Processing Device 11 Control Unit 13 Display I / F
16 Network I / F
18 Input device I / F
30 display 60 data server 80 input device

Claims (9)

In a biological information processing apparatus that displays a waveform of biological information on a display screen,
Input means for inputting a signal designating at least a part of the waveform displayed on the screen;
When the signal is input, display means for displaying a mesh superimposed on the waveform of the specified portion;
A biological information processing apparatus characterized by comprising: The mesh has a plurality of ruled lines as time scales;
The input means inputs the signal designating a starting point of the waveform of the at least part;
The biological information processing apparatus according to claim 1, wherein the display unit displays one of the plurality of ruled lines in alignment with the start point.   The biological information processing apparatus according to claim 1, wherein the display unit deletes the mesh after displaying the mesh over a certain period. The input means inputs the signal designating a start point and an end point of the at least part of the waveform,
When the signal is input, the display means displays a reference line on the start point, a first auxiliary line on the end point, and a second auxiliary line from the designated portion. The start point side is displayed so that the distance from the reference line is equal to the distance between the reference line and the first auxiliary line, and a third auxiliary line is placed closer to the end point than the designated portion. The biological information processing apparatus according to claim 1, wherein an interval between the first auxiliary line is displayed so as to be equal to an interval between the reference line and the first auxiliary line. The input means designates the position on the waveform corresponding to the drag start position of the pointer displayed on the screen as the start point, and drags the pointer to the current position of the pointer while the pointer is being dragged. After the end, input the signal that specifies the position on the waveform corresponding to the drag end position of the pointer as the end point,
The biological information processing apparatus according to claim 4, wherein the display unit displays the reference line and the first to third auxiliary lines after the start of dragging of the pointer. The mesh has a plurality of ruled lines as time scales;
The display means superimposes the mesh on a portion of the waveform included in a range from the second auxiliary line to the third auxiliary line while aligning one of the plurality of ruled lines with the start point. The biological information processing apparatus according to claim 5, wherein the biological information processing apparatus is displayed.   The display means displays the mesh over a certain period after the end of dragging the pointer, and then deletes the mesh, the reference line, and the first to third auxiliary lines. The biological information processing apparatus according to claim 5. A calculation means for calculating the time length of the specified portion;
The biological information processing apparatus according to claim 1, wherein the display unit displays the calculated time length when the signal is input. Displaying a waveform of biological information on a display screen;
Inputting a signal designating at least a part of the waveform displayed on the screen;
When the signal is input, displaying the mesh over the waveform of the specified portion; and
A biological information processing method characterized by comprising:

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