JP2001170017A - Biological data processing instrument and method of controlling biological data display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological data processing instrument enabling a user to easily grasp the time-wise relation between displayed waveforms only by checking the display screen and to easily check the peak value in each part. SOLUTION: The latest waveform is displayed at the right end both in a current display region on the right side in the middle on the display screen for displaying the current waveform of selected induced waveforms and in a rhythm waveform display region in the bottom on the display screen, to be scrolled toward the left side in time. In addition, overlapping grids are superposedly displayed with intervals corresponding to the size of the waveform in the region.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biological information processing apparatus having a display means capable of displaying a waveform of information collected from a living body, and a biological information display control method.

[0002]

2. Description of the Related Art An electrocardiogram (ECG) is widely used for finding and verifying the symptoms of various heart patients, and the accuracy of the electrocardiogram diagnosis has been greatly increased with the development of electrocardiographs. In conventional clinical medicine, an electrocardiogram measured by an electrocardiograph is printed and recorded on a recording paper on which a grid is printed in advance, and a change in a waveform is confirmed to detect and treat a heart disease.

[0003] Further, with the development of electronic technology, signal processing technology has advanced, and a CRT display device and an LCD display device have been provided. Electrocardiogram information has been input, and an electrocardiogram waveform has been displayed on the display screen of the display device. Patient monitoring devices that are used to monitor the condition of patients are also appearing.

The display of an electrocardiogram waveform displayed on the display screen of this type of display device is such that, for example, a waveform is displayed sequentially from the left to the right of the display screen, and when displayed to the right end, the electrocardiogram waveform is displayed again from the left end. At this time, the ECG waveform is displayed while being updated to a new ECG waveform while overwriting the previously displayed ECG waveform.

In order to indicate which waveform is the latest display waveform, the brightness of the latest waveform display portion is increased, and this high-luminance portion moves from left to right to determine which portion of the display is the latest display waveform. It was configured so that the user could visually recognize the electrocardiogram waveform part.

In another example, in order to indicate which waveform is the latest display waveform, the latest waveform display portion is represented by a gap, and the gap moves from left to right, and which portion of the display is the latest display waveform. It was configured so that the user could visually recognize the electrocardiogram waveform part.

In any case, when an abnormality is confirmed in the displayed waveform, the display state of the waveform can be fixed to confirm the abnormal waveform.

[0008]

However, in the conventional apparatus, if the display state is set to the fixed state in order to check the electrocardiogram, the high-brightness display is canceled and all the waveforms have the same luminance. It is difficult to determine which part of the waveform is the latest display waveform by simply using it, and it is difficult to determine the context of the waveform, so that it is difficult to determine.

Further, since the latest display waveform portion is represented by a small gap, it is difficult to determine the latest waveform portion, and the latest waveform portion can be determined only by sequentially examining the display waveform.

Further, in the overwriting method, when the latest waveform portion is not at the right end, the past waveform cannot be viewed continuously, which hinders accurate determination.

[0011]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and has the following arrangement as one means for solving the above-mentioned problems.

That is, in a biological information processing apparatus provided with display means capable of displaying biological information, an input means for inputting biological information, and a waveform display means for displaying the biological information waveform input by the input means on the display means. The waveform display means is characterized in that the latest waveform display position is fixed near one end of the display area of the display screen, and the display waveform is scrolled sequentially toward the other end and displayed.

[0013] For example, grid storage means for storing grid information in advance, and grid display means for reading a grid stored in the grid storage means and superimposing and displaying the input biological information waveform displayed by the waveform display means are provided. It is characterized by having.

Further, for example, the waveform display means can change the size of a display waveform according to a display area and can display the waveform, and the grid display means displays a grid corresponding to the size of the waveform.

Further, for example, a display buffer for storing display image information to be displayed on the display means is provided, and the grid display means stores the grid information stored in the grid storage means in an input biological information waveform display area of the display buffer. The waveform display means stores the display waveform in the display buffer, changes the read address according to the display mode, and scrolls the waveform display together with the grid by storing the display waveform in the display buffer. I do.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic block diagram of a biological information processing apparatus according to one embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a control unit (CPU) provided with, for example, a microprocessor chip or the like, which controls the overall control of the apparatus of this embodiment according to a program stored in a ROM 2; A ROM 3 for storing a grid pattern, which will be described later, and a RAM 3 for temporarily storing the processing progress of the CPU 1 and the like.

Reference numeral 4 denotes a timer for counting various times, and notifies a sampling timing of input data. Reference numeral 5 denotes a PC interface for connecting to another information processing apparatus, for example, a host computer or the like, and can be configured by a serial interface of the RC232C standard or the like.

Reference numeral 10 denotes a shared buffer used for an interface between the print output CPU 11 and the control unit 1, and is composed of, for example, a 256 Kbyte RAM.
An output CPU 11 has a built-in ROM for storing an operation program and a large-capacity RAM. Reference numeral 12 denotes a printer driver that controls an interface with a printer under the control of the output CPU 11, and reference numeral 13 denotes a printer that prints and outputs a biological information collection result and an analysis result. Reference numeral 14 denotes a CP for output via a serial interface (such as RS232C specification).
It is a load device for applying a predetermined load to the subject connected to U11, and can control various load devices such as an ergometer and a treadmill if the load device has a serial interface specification. Reference numeral 15 denotes a treadmill, which is a load device that forms a parallel interface and is directly connected to the CPU 11 for output.

Reference numeral 20 denotes a shared buffer used for an interface between the display CPU 21 and the control unit 1 and is constituted by, for example, a RAM of 256 Kbytes.
A display CPU 21 has a built-in ROM for storing an operation program and a large capacity RAM. Reference numeral 22 denotes a display buffer for storing display data of the display unit 23, and a text buffer 2 for displaying text on the display unit 23.
2a, an average waveform buffer 22b for displaying an average waveform, a current waveform buffer 22c for displaying a current waveform, and a rhythm waveform buffer 22d for displaying a rhythm waveform. Each of the display buffers 22a to 22d can be composed of, for example, a VRAM.

Reference numeral 23 denotes a display unit for displaying information collected from a living body and information processed by the control unit 1 under the control of the display CPU 21. In this embodiment, the display unit 23 is constituted by a color CRT display device. However, the display unit 23 is not limited to this display device, and may be a liquid crystal display device, an electroluminescence (EL) display device, or a plasma display device. It goes without saying that any type of display device may be used.

24 is a gas analyzer which can be connected as an option, and 25 is a speaker 2 according to the control of the display CPU 21.
An amplifier 26 for driving the amplifier 6 and a speaker 26 output, for example, an alarm sound. 27 is a display CPU 2
A keyboard for keying in various data according to the control of 1 is a touch panel arranged on the front surface of the display screen of the display unit 23, and various instruction inputs corresponding to the display data of the display unit 23 under the control of the display CPU 21. Can be.

Reference numeral 31 denotes a shared buffer having an interface function with an external storage device, and is composed of, for example, a 64 Kbyte SRAM. Reference numeral 32 denotes a flexible disk controller (FDC) that controls the flexible disk device 35 according to the control of the control unit 1, and exchanges data with the flexible disk device 35 via a DMAC (direct memory access controller) 34 in the shared buffer 31. This is performed directly with a predetermined area.

Reference numeral 33 denotes, for example, a hard disk drive (HD)
37, a SCSI controller which manages an interface with the magneto-optical disk drive (MO) 36;
The transfer of data between / O is directly performed between DMAC 34 and a predetermined area in shared buffer 31.

Reference numeral 34 denotes a DMAC (Direct Memory Access Controller), and reference numeral 35 denotes a flexible disk device (F) on which a 3.5-inch flexible disk can be mounted.
D) and 36 are magneto-optical disk devices (MO), which can be connected to 3.5-inch 128 Mbytes in this embodiment, but 640 Mbytes or more MOs can be connected if necessary. May be configured. 37 is a magnetic disk drive (HD).

Reference numeral 40 denotes a shared buffer used for an interface between the input CPU 41 and the control unit 1 and is constituted by, for example, a 256 Kbyte RAM.
An input CPU 41 includes a ROM for storing an operation program and a large-capacity RAM. An analog signal input port to which the following various I / Os are connected is provided, and an analog signal input from the analog signal input port is provided in accordance with a sampling timing from a timer 4 connected to the control unit 1. An analog-to-digital converter for sampling and converting to a corresponding digital signal is built in.

Reference numeral 42 denotes an ECG amplifier for amplifying an electrocardiogram signal collected from the input box 43, reference numeral 43 denotes an input box to which a plurality of bioelectrodes 44 can be connected, and reference numeral 44 denotes a bioelectrode. An electrocardiogram signal can be processed. Reference numeral 45 denotes a sphygmomanometer capable of measuring a subject's systolic and diastolic blood pressures, and reference numeral 46 denotes a telemeter for wirelessly inputting an electrocardiogram measured at a remote location. In this embodiment, a 9-channel 12-lead electrocardiogram signal is used. Can be processed.

Reference numeral 47 denotes a temperature measuring unit capable of measuring the ambient temperature, the body temperature of the subject, and the like; and 48, an SP for detecting the SPO2 of the subject.
O2 detector. Further, the device of the present embodiment is LAN1.
00 and can communicate with other information processing devices under the control of the control unit 1.

The operation control of the biological information processing apparatus of the present embodiment having the above configuration will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart showing the operation control in this embodiment. The following control is performed by, for example, R
In accordance with the overall control of the microcomputer of the control unit 1 according to the program stored in the OM 2, the display CPU
21, an example of executing in cooperation with the output CPU 11 and the input CPU 41 will be described.

In the present embodiment, first, in step S1, an electrocardiogram (eg, a collected electrocardiogram obtained by a 12-lead method) input to the input CPU 41 via the input box 43 and the ECG amplifier 42 is displayed on the display section 23. Select the lead to be performed. For example, it is selected to display the waveforms of V2, aVF, and V5 of the mounting electrodes in the 12-lead method.

Subsequently, in step S2, the display unit 23
, The size of the grid to be displayed together with the waveform to be displayed and, if necessary, the size of the displayed grid, that is, the size of the waveform. As described above, a plurality of types of grids are stored in the ROM 2 in advance. For example, the grid may be represented by dots arranged at regular intervals, or at regular intervals (e.g., 5 dots) among the dots arranged at regular intervals. Each)
There is a mode in which the dot diameter is increased, a mode in which a grid is expressed by drawing a thin line in a grid instead of expressing the grid with dots, and which is displayed is selected.

Then, in step S3, the input CPU
41 starts input of an electrocardiogram signal. Input CPU 41
In step S4, an A / D conversion process of inputting the electrocardiogram signal from the analog input port to convert into a corresponding digital signal according to the sampling timing signal from the timer 4 sent from the control unit 1 and writing the same into the shared buffer 40 Start. Thereafter, the input CPU 41 takes in the electrocardiogram signal at each sampling timing, converts the signal into a corresponding digital signal, and continues the process of writing the digital signal into the shared buffer 40.

At this time, instead of converting the analog electrocardiogram signal at the time of generation of the sampling timing into a corresponding digital signal, a peak hold of a waveform between one sampling timing and the next sampling timing is performed, and this peak value is calculated. Control may be performed such that the data is converted into a corresponding digital value and written into the shared buffer 40. By controlling in this way, even if there is a peak between sampling timings, the peak value can be reliably captured so as to be recognizable. Further, if the control unit 1 can be notified of the peak value generation time when the peak value is detected, more accurate waveform recognition can be performed.

After starting the A / D conversion processing in step S3, the control section 1 determines in step S5 that the input C
The storage of the electrocardiogram signal in the shared buffer 40 by the PU 41 is detected, and a digital signal reading process to be taken into, for example, a built-in RAM is started. Thereafter, the control unit 1 sets the input C
Each time the PU 41 detects that the electrocardiogram signal is stored in the shared buffer 40, the reading process of the write data is continued.

In step S6, the control section 1 starts a process of analyzing the captured information. Thereafter, the analysis processing is performed every time digital data is taken. The digital signal storing process of the input CPU 41 described above using the electrocardiogram signal as an example is the same for the temperature measurement data from the other temperature measurement section 47 and the blood pressure value data from the sphygmomanometer.

In the above description, the input CPU 41
Shows an example of directly inputting a collected signal from a living body. In the present embodiment, not only information collected directly from a living body but also previously collected data is stored in a magnetic storage medium. Of course, it is also possible to analyze data in which the biological information stored in the medium is taken into the control unit 1 via the MO 36 or the FD 35, for example.

The control unit 1, which has received the processing information through such various routes and started the analysis processing, simultaneously executes step S7.
, It is determined whether or not printout is necessary as a result of the data analysis processing. If print processing is not required, the process proceeds to step S9.

On the other hand, if the printing process is necessary in step S7, the flow advances to step S8 to instruct the output CPU 11 to start the printer 13 via the printer driver 12 and perform the printing process. Then, processing for storing the print data in the shared buffer 10 is started as necessary, and the process proceeds to step S9.

The control unit 1 thereafter writes the print data into the shared buffer 10 every time there is a request from the output CPU 11, and the output CPU 11 sequentially reads the print data from the shared buffer 10 and needs the print data to be printed out by the printer 13. When the required amount is reached, a process of printing out from the printer 13 is performed. The printing control of the control unit 1 and the output CPU 11 is repeated until necessary printing is completed.

Separately from the above processing, the control unit 1 checks in step S9 whether display control processing for changing the display on the display unit 23 is necessary. If the timing does not require the display control process, the process proceeds to step S11.

On the other hand, if the display control is required in step S9, the process proceeds to step S10, and the display CPU 21 is instructed to perform the display control process. Then, a process of storing necessary display change data in the shared buffer 20 is started, and the process proceeds to step S11.

Thereafter, the control unit 1 sequentially writes the display change data into the shared buffer 20. The display CPU 21 sequentially takes in display change data from the shared buffer 20, writes the data in the corresponding area of the display buffer 22, updates the display data in the display buffer 22, and changes the display on the display unit 23. The above-described display change control of the control unit 1 and the display CPU 21 is repeated until the necessary rewriting of the display data in the display buffer 22 is completed.

Separately from the above processing, the control unit 1 checks in step S11 whether it is necessary to control the load control device. If the timing does not require the control of the load control device, the process proceeds to step S13, executes other necessary processes, returns to step S7, and performs necessary signal processing.

On the other hand, if it is determined in step S11 that the timing requires the control of the load control device, the flow advances to step S12.
The output CPU 11 activates a load device to be controlled and controls the load device to apply a desired load. For example, when the load device is the treadmill 15, the treadmill 15 is controlled to drive the load to a desired load. On the other hand, in the case of the load device 14, it is controlled to drive the load device 14 to a desired load.

On the other hand, if it is determined in step S11 that the control of the load control device 20 is not necessary, the process proceeds to step S13. Then, in step S13, the other control unit 1
Perform other necessary processing to be processed by.

FIG. 3 shows an example of a basic display screen on the display section 23 of the present embodiment, which is display-controlled by the above control. The basic display screen of the display unit 6 of the present embodiment is roughly divided into four display blocks, a digital display area for displaying the measurement results in the upper row as specific digital numbers, and an average of the selected induction waveform on the left side in the middle row. It comprises an enlarged display area for displaying the waveform, a current display area for displaying the current waveform of the selected guide waveform on the right in the middle, and a rhythm display area for displaying the rhythm waveform of one selected guide waveform in the lower row. Then, in the middle waveform display area, grids at intervals corresponding to the magnitude of the display waveform in the area are superimposed and displayed. As a result, as described later, the absolute value of the display waveform can be easily recognized only by checking the display screen.

The real-time display area is an area in which one selected guiding waveform is constantly displayed while scrolling (moving display). However, the control may be performed so that the grid is superimposed and displayed in addition to the waveform display.

As the displayed waveform in the middle, up to three induced waveforms can be selected. However, the present invention is not limited to the above example. For example, two or four or more induced waveforms may be selectable. The size of the waveform to be displayed may be changed in proportion to the number of waveforms selected and actually displayed. This waveform display is also a moving display (scroll display) described in detail below.

When the display section 6 is capable of color display, the color of the grid is changed to the display color of the waveform to make the display more visible.

More specifically, the text display buffer 22a of the display buffer 22 stores data obtained by developing the display data of the character portion in the display screen into an image, and the average waveform display buffer 22b displays the enlarged display area. The waveform is stored. The current waveform buffer 22c
Stores the waveform data of the current waveform display area, and stores the waveform data of the real-time display area in the rhythm waveform buffer 22d.

Further, the grid is previously stored in the RO as described above.
For example, for display in an enlarged display area, grid display data corresponding to the display magnification is read out from the ROM 2 and superimposed on display waveform data in the average waveform display buffer 22b. Is stored. The current waveform display buffer 22
For c, grid data corresponding to the display magnification of the current waveform is read from the ROM 2 and stored in the current waveform display buffer 22c.

At the time of display on the display unit 6, the grid can be displayed together with the induced waveform by simply reading the data stored in each display buffer.

In particular, when the apparatus of this embodiment is applied to the measurement of a load electrocardiogram, since the grid and the waveform are displayed together, the display screen of the display unit 6 can be displayed without printing each waveform. The state of the subject can be accurately grasped only by checking. Furthermore, by displaying a waveform of particular interest in the enlarged display area, for example, by specifying it, it is possible to display it in a larger scale than in the case of printing, which facilitates confirmation.

The grid stored in the ROM 2 is not limited to the form shown in FIG. 3, but stores a plurality of types of grids so that the operator of the apparatus can select a grid that is easy to see. It is configured. For example, even if the grid is represented by dots and the dots are enlarged at regular intervals, the grid may be represented by thin lines instead of the dots in principle, and the grid may be easy for the observer to see. Needless to say, a grid of any expression format can be applied.

An example of basic screen display control on the display unit 6 when the electrocardiogram information is input in the biological information processing apparatus of the present embodiment described above will be described with reference to the flowchart of FIG. FIG. 4 is a flowchart showing an example of the basic screen display control in step S10 of FIG. 2 in the present embodiment. The following control is performed by, for example, RO
An example in which the microcomputer of the control unit 1 executes the program according to the program stored in M2 will be described.

The display process is performed by developing the display data into patterns in the display buffers 22a to 22d for the respective waveforms.
The stored data of 2a to 22d is sequentially read out and a pattern corresponding to the developed dot pattern is displayed.

Step S20 for each display buffer,
The buffer control processing in steps S30, S40 and S50 is performed in synchronization with the vertical synchronization interval timing signal (vertical synchronization signal) from the timer 4.

For example, first, an average waveform is stored in the average waveform display buffer (VRAM) 22b in step S20. That is, first, step S2
At step 1, the analog electrocardiogram signal from the shared buffer 40 is sampled according to the sampling timing from the timer 4 and written into the waveform buffer in the built-in RAM.
Then, in step S22, it is determined whether the waveform information for one waveform has been accumulated in the waveform buffer. If the information for one waveform has not been stored, the process proceeds to step S60.

On the other hand, if information for one waveform is stored in step S22, it is checked whether or not this waveform is an averaged waveform. If it is not the waveform to be averaged, step S
The process advances to step S60, and if the waveform is an average target waveform, the process advances to step S24. Then, in step S24, the waveform stored in the waveform buffer is written to the average waveform display buffer (VRAM) 22b, and the waveform information is updated from the previous waveform to the waveform information newly stored in the waveform buffer. Then, the process proceeds to step S60.

Next, the storage control for the rhythm waveform display buffer 22d shown in step S30 will be described. In the storing process to the rhythm waveform display buffer 22d, first, in step S31, the contents of one vertical line at the erasing point of the rhythm waveform display buffer 22d are erased. Then, in the subsequent step S32, the grid pattern corresponding to the display scale of the electrocardiogram for displaying the rhythm waveform is stored in the ROM
From the rhythm waveform display buffer 22
Write point d Writes in the rhythm waveform display area. Then, the process proceeds to step S34.

In step S34, the rhythm waveform for one vertical line of the rhythm waveform is written in the rhythm waveform display buffer 22d area for one vertical line deleted in step S31. Then, the process proceeds to step S34, in which the read point of the rhythm waveform display buffer 22d is moved rightward by one line, and then the process proceeds to step S60.

Next, the storage control for the current waveform display buffer 22c shown in step S40 will be described. In the storing process in the current waveform display buffer 22c, first, in step S41, the contents of one vertical line of the erasure point of the current waveform to be rewritten in the current waveform display buffer 22c are erased. In the subsequent step S42, a grid pattern corresponding to the display scale of the electrocardiogram on which the current waveform is displayed is read out from the ROM 2, and written in the write point current waveform display area of the current waveform display buffer 22c. Then, the process proceeds to step S44.

In step S44, the current waveform is written for one vertical line to the writing point for one vertical line erased in step S41 in the current waveform display area to be drawn in the current waveform display buffer 22c. Then, the process proceeds to step S44, where the read point of the current waveform in the current waveform display buffer 22c is set to the right by one.
After moving by the line, the process proceeds to step S60.

Next, the storage control for the text display buffer 22a shown in step S50 will be described. In the process of storing data in the text display buffer 22a, first, it is checked in step S51 whether data needs to be updated, that is, whether there is a text rewrite request. If there is no need to update the data, the process proceeds directly to step S60.

On the other hand, if a text rewriting request is generated in step S51 and data updating is necessary, step S5
Proceeding to 2, the text storage area to be rewritten in the text display buffer 22a is rewritten with a text pattern to be newly displayed. Then, the process proceeds to step S60. For example,
If it is necessary to change the text display, such as when the heart rate changes or the exercise load changes, step S
At 52, the display data is updated to new display data. And step S
Proceed to 60.

In step S60, display screen data is generated by combining the contents of all the display buffers 22a to 22d. The display unit 6 performs display according to the contents of the display buffer, for example, as shown in FIG.

In the present embodiment, step S3
0, or by performing the display control shown in step S40, the waveform at the right end of the screen is the latest waveform display,
The waveform is displayed in such a manner that the waveform scrolls sequentially to the left and disappears sequentially from the left end. The principle of the scroll display according to the present embodiment will be described in more detail with reference to FIG.

The display buffer (V
The waveform display area of the current waveform display buffer 22c and the rhythm waveform display buffer 22d of the RAM 4 only needs to have an area capable of storing display information of approximately one stage of each of the waveform display areas. It is good if you can afford.

The control of storing the waveform information in the waveform display area is performed as shown in the upper part of FIG. Specifically, when rewriting a predetermined area of the display buffer corresponding to the display waveform, the next writing point is a point on the right of one vertical line of the writing point rewritten in the immediately preceding rewriting process. The erasing point is a point on the vertical one line at the end of the information storage area for the waveform display information for the display area of the waveform on the display unit 6 from the writing point.

That is, display waveforms are sequentially stored in the area on the left side of the drawing from the writing point shown in the upper part of FIG. 5, and become the display waveform on the right end continuously to the display waveform on the left end, and displayed as it is in the left direction. Waveform information is stored. Then, a display information area for the waveform display area is secured on the left side of the write point in the above order, and the storage point of the last vertical one line being displayed is set as the erase point.

When the stored waveform information is read out to the display control unit 5, the information of one vertical line at the writing point is first read out, and the vertical one line at the right end of the display area of the waveform on the display screen is read. Control to display on the line. Subsequently, control is performed so that information of one vertical line at the left of the writing point is read and displayed on two vertical lines from the right end of the display area of the waveform on the display screen.

In this way, reading is performed so as to be sequentially displayed from the left end of the display screen, and when reading is performed up to the left end of the storage area of the display buffer, the read point is set to the opposite end of the display buffer. For example, when the read address is read up to the last address of the area, the first address of the area is set to the next read address. As a result, for example, when reading is performed from the left end shown in the upper part and reading is performed up to the erasing point, the waveform is displayed in the entire area of the waveform display area on the screen.

By moving the writing point and the erasing point at the time of storage to the right side of the drawing as described above, the waveform information of the latest vertical one line is always displayed on the right side of the screen, and thereafter, the waveform information is displayed on the right side. The waveforms are sequentially displayed, and the waveform information at a certain point moves from the right end to the left end of the display screen. When the display reaches the left end, the waveform display is not performed.

By controlling the display in this manner, the waveform is scrolled and displayed together with the grid.

When a request for confirming the details of the current waveform is made while viewing the scroll waveform display, the latest waveform is displayed at the right end even if the display state of the current waveform is fixed. By making the grid correspond to the absolute value of the display waveform, the absolute value of the waveform can be confirmed simply by checking the display waveform on the display screen, and appropriate judgment can be made. .

The waveform display can be fixed by, for example, suspending the writing process to the display buffer and reading the data with the read point fixed, so that the current waveform display can be easily stopped.

As described above, according to the present embodiment, the display position of the latest display waveform can be easily specified by scrolling the waveform on the display screen, and the latest waveform is displayed on the right end. I can recognize that. As a result, for example, even when the display state of the current waveform is fixed in order to confirm the details of the current waveform, the relationship before and after the displayed waveform can be easily recognized.

Further, together with the waveform display on the display screen, for example, R
The grids stored in the OM2 can be displayed in a superimposed manner, and the display unit 7 can be displayed without printing each time.
By simply looking at the display screen, the state of the waveform can be easily recognized. At this time, by making the grid correspond to the absolute value of the display waveform, the absolute value of the waveform can be checked only by checking the display waveform on the display screen, and appropriate judgment can be made.

The grid stored in the ROM 2 is not limited to the form shown in FIG. 3, but stores a plurality of types of grids so that the operator of the apparatus can select a grid that is easy to see. It is configured.

FIGS. 6 and 7 show other examples of this grid. In contrast to the example shown in FIG. 3 in which the grid is represented by dots in principle, and the grid is formed by separating the lines with straight lines (every five) at regular intervals, in the case of FIG. Is expressed, and the dots are enlarged at regular intervals. In the example of FIG. 7, the grid is not expressed by dots in principle, but the grid is expressed by thin lines. It should be noted that the expression form of the grid is not limited to the above example, and it goes without saying that a grid of any expression form can be applied as long as the grid is easy for the observer to see. As described above, according to the present embodiment, for example, the grid stored in the ROM 2 can be displayed on the display screen so as to be superimposed on the waveform display, and the display unit 23 can be displayed without printing each time. The state of the waveform can be easily recognized simply by looking at the display screen. At this time, by making the grid correspond to the absolute value of the display waveform, the absolute value of the waveform can be checked only by checking the display waveform on the display screen, and appropriate judgment can be made.

In the above description, the grid and the waveform information are stored in the same display buffer. However, they may be stored in different display buffers, and may be superimposed when read and output. Thus, once the grid is selected, if only the waveform display control is performed in real time, the troublesome control of the grid display can be omitted.

As described above, according to the present embodiment, the temporal relationship between the biological signal waveforms can be reliably grasped. Furthermore, since the waveform and the grid are displayed at the same time, it is possible to easily recognize the detailed peak values of the respective parts of the waveform displayed as the biological signal waveform simply by checking the display on the display means, and to make an appropriate determination. I can do it. For this reason, it is possible to omit the trouble of printing out for checking the waveform and measuring each waveform value with a ruler, and the running cost can be suppressed.

As described above, according to the present invention, the temporal relationship between the biological signal waveforms can be reliably grasped. Furthermore, since the waveform and the grid are displayed at the same time, it is possible to easily recognize the detailed peak values of the respective parts of the waveform displayed as the biological signal waveform simply by checking the display on the display means, and to make an appropriate determination. I can do it. For this reason, it is possible to omit the trouble of printing out for checking the waveform and measuring each waveform value with a ruler, and the running cost can be suppressed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment according to the present invention.

FIG. 2 is a flowchart showing operation control in the apparatus of the embodiment.

FIG. 3 is a diagram showing a display example of a basic display screen of the embodiment.

FIG. 4 is a flowchart showing basic screen display control according to the embodiment.

FIG. 5 is a diagram for explaining the principle of scroll display of a waveform according to the embodiment;

FIG. 6 is a diagram showing a display example of another basic display screen of the embodiment.

FIG. 7 is a diagram showing a display example of still another basic display screen of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Control part (CPU) 2 ROM 3 RAM 4 Timer 5 PC interface 10, 20, 31, 40 Shared buffer 11 Output CPU 12 Printer driver 13 Printer 14 Load device 15 Treadmill 21 Display CPU 22 Display buffer 22a Text buffer 22b Average waveform buffer 22c Current waveform buffer 22d Rhythm waveform buffer 23 Display unit 24 Gas analyzer 25 Amplifier 26 Speaker 27 Keyboard 28 Touch panel 32 Flexible disk controller (FDC) 33 SCSI controller 34 DMAC (Direct memory access controller) 35 Flexible Disk device (FD) 36 Magneto-optical disk device (MO) 37 Magnetic disk device (HD) 41 Input CPU 42 E CG amplifier 43 input box 44 bioelectrode 45 sphygmomanometer 46 telemeter 47 temperature measuring unit 48 SPO2 detecting unit.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toru Ishii 3-39-4 Hongo, Bunkyo-ku, Tokyo Fukuda Electronics Co., Ltd. (72) Inventor Kazuo Fukui 3-39-4 Hongo, Bunkyo-ku, Tokyo Fukuda Electronics Co., Ltd. Within the company (72) Inventor Tatsuo Nagasawa 1-Denjiyama, Narumi-cho, Midori-ku, Nagoya-shi, Aichi Pref. F-term in electronic (reference) 4C027 AA02 CC00 HH03 HH16

Claims (8)

[Claims] 1. A biological information processing apparatus comprising display means capable of displaying biological information, input means for inputting biological information, and waveform display means for displaying the biological information waveform input by the input means on the display means. Wherein the waveform display means fixes the latest waveform display position near one end of the display area of the display screen, and sequentially scrolls the display waveform toward the other end to display the biological information. Processing equipment. 2. A grid storage means for storing grid information in advance, and a grid display means for reading a grid stored in the grid storage means and superimposing and displaying the input biological information waveform displayed by the waveform display means. The biological information processing apparatus according to claim 1, wherein: 3. The waveform display device according to claim 1, wherein a size of a display waveform is changed according to a display area, and the grid display device displays a grid corresponding to the size of the waveform. 2. The biological information processing apparatus according to 2. 4. A display buffer for storing display image information to be displayed on said display means, wherein said grid display means stores grid information stored in said grid storage means in an input biological information waveform display area of said display buffer. A grid is displayed by storing in a corresponding area, and the waveform display means stores the display waveform in the display buffer, changes a read address according to a display mode, and scrolls the waveform display together with the grid. The biological information processing apparatus according to claim 2 or 3. 5. A biological information display control method in a biological information processing apparatus including a display unit capable of displaying a waveform of information collected from a living body, the display unit displaying an input biological information waveform on the display unit. A biological information display control method, characterized in that a waveform display position is fixed near one end of a display area of a display screen, and display waveforms are sequentially scrolled and displayed in the direction of the other end. 6. The biological information display control method according to claim 5, wherein a grid stored in grid storage means for storing grid information is read out and superimposed and displayed on the input biological information waveform. 7. The signal waveform display according to claim 1, wherein a size of the display waveform can be changed according to a display area, and a grid corresponding to the size of the display waveform is read out and displayed. 7. The biological information display control method according to 6. 8. The living body according to claim 6, wherein display image information to be displayed on the display means is stored in a display buffer, and a read address is changed according to a display mode to scroll a waveform display. Information display control method.