JP7261565B2 - BIOLOGICAL INFORMATION MEASURING DEVICE AND CONTROL METHOD THEREOF - Google Patents

Description

The present invention relates to a biological information measuring device and its control method, and more particularly to a biological information measuring device using a software key and its control method.

2. Description of the Related Art A biological information measurement apparatus that displays a biological signal waveform such as an electrocardiogram or a pulse wave on a screen is desired to have a display section as large as possible in order to improve the visibility of the biological signal waveform. On the other hand, from the viewpoint of reducing the installation area and improving portability, it is desirable to downsize the biological information measuring apparatus. In order to meet such conflicting demands, there is known a configuration in which some of the hardware keys and switches that were conventionally provided on the housing are changed to software switches (Patent Document 1).

Patent No. 4949685 (Fig. 3)

The combination of touch display and software keys allows virtually any number of keys or switches to be provided on the electrocardiograph without increasing the space of the housing. However, since it is desirable to display the biosignal waveform on the screen as large as possible, the size of the area on the screen where the software keys can be displayed is limited. In addition, since software keys must have a certain size from the viewpoint of operability and visibility, the number of software keys that can be displayed on the screen at one time cannot be greatly increased.

One of the reasons software keys need to have a certain size is to ensure the visibility of text indicating their function. In particular, non-kanji languages have more characters than kanji characters, so this is a particular problem in products that support multiple languages. Another reason is that a certain size is required in order to ensure that the software keys intended by the user can be touch-operated. Due to this background, especially in a small biological information measuring device, only 3 to 4 software keys can be arranged on the screen. To address this problem, some biological information measuring devices have a function of switching the set of software keys displayed on the screen each time the switching key is operated.

Although the user can set which function is assigned to which set, it takes time and effort. Therefore, a function for efficiently setting software keys has been desired.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a biological information measuring apparatus having a function of automatically determining functions to be assigned to software keys and a control method thereof. and

The above object is a biological information measuring device using a part of the display screen as an area for displaying software keys, and providing control means for automatically determining functions to be assigned to the software keys based on the frequency of use of the functions. It is achieved by a biological information measuring device characterized by having:

With such a configuration, according to the present invention, it is possible to realize a biological information measuring device having a function of automatically determining functions to be assigned to software keys, and a control method thereof.

1 is a block diagram showing a functional configuration example of an electrocardiograph as an example of a biological information measuring device according to an embodiment of the present invention; FIG. It is a figure which shows the example of a screen of the electrocardiograph which concerns on embodiment. It is a figure which shows the example of a screen of the electrocardiograph which concerns on embodiment. 4 is a flow chart relating to function key assignment operations in the electrocardiograph according to the embodiment. It is a figure which shows the example of a screen of the electrocardiograph which concerns on embodiment.

Exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. Here, an embodiment in which the present invention is applied to an electrocardiograph as an example of a biological information measuring device will be described. However, the present invention can also be applied to biological information measuring devices other than electrocardiographs, such as biological information monitoring devices.

(Configuration of electrocardiograph)
FIG. 1 is a block diagram showing a configuration example of an electrocardiograph 100 according to an embodiment of the present invention.
The electrode group 110 consists of limb electrodes (4) and chest electrodes (6), for example. The type and number of electrodes included in the electrode group 110 are determined by the type and number of electrocardiogram signals (leads) measured by the electrocardiograph 100 .

The electrode group 110 (electrocardiogram electrodes) is connected to a connector included in the input section 111 of the electrocardiograph 100 . The input unit 111 has, for example, a protection circuit, a lead selector, an amplifier circuit, etc., and outputs a preset type and number of electrocardiogram signals.
The A/D conversion unit 112 digitizes each electrocardiogram signal output from the input unit 111 and outputs the digitized electrocardiogram waveform data. The input section 111 and the A/D conversion section 112 are also called an analog front end (AFE).

The filter processing unit 113 applies a noise removal filter to the electrocardiogram waveform data input through the A/D conversion unit 112 according to settings from the control unit 120 . In the present embodiment, the filter processing unit 113 can selectively apply a myoelectric noise removal filter, an AC noise removal filter, and a drift noise removal filter, as an example. It is not limited to these.
The speaker 114 is used by the controller 120 to output, for example, warning sounds and voice messages.

The control unit 120 includes, for example, a ROM, a RAM, and a programmable processor, and controls the operation of the electrocardiograph 100 as a whole by loading a control program stored in the ROM into the RAM and executing the program by the programmable processor. In addition to the control program, the ROM stores various set values, GUI data, and the like, which are used as appropriate when executing the control program. Also, at least part of the ROM may be rewritable.

Note that, for example, the filter processing unit 113 may be implemented by executing a program by a programmable processor included in the control unit 120, or may be implemented by hardware such as ASIC or ASSP. Filter processing unit 113 may be realized by a combination of hardware and software.

The analysis unit 1201 corresponds to an automatic analysis function of electrocardiogram waveform data realized by the control unit 120, and applies automatic analysis processing to measured electrocardiogram waveform data. Automatic analysis processing can be broadly divided into measurement processing and finding classification processing. The measurement process is a process of detecting segment points (P, QRS, T) of an electrocardiogram and obtaining measured values (RR interval, ST level, PQ, QRS width, QT, etc.). Further, the finding classification process is a process of determining a finding based on the measured value and the determination condition determined in advance. Note that the measured values given here are merely examples, and other measured values may be obtained.

A memory card can be inserted into and removed from the card slot 116, and the control unit 120 can record electrocardiogram test data on the mounted memory card and read recorded electrocardiogram test data from the mounted memory card. . The electrocardiogram data includes electrocardiogram waveform data and subject information data. When the electrocardiogram waveform data is automatically analyzed, the examination data also includes the data of the automatic analysis result. Electrocardiography data is generated for each examination in a predetermined data format. The electrocardiography data may be composed of a plurality of data files, or may be composed of one data file.

The operation unit 117 is an input device for a user (medical personnel) to input various settings and instructions to the electrocardiograph 100, and buttons, keys, touch panels (software keys) and the like are generally used, but are not limited to these. . Input methods that do not require physical input manipulation, such as voice input, may be supported.

The display unit 118 is a display device such as an LCD, and displays an electrocardiogram being measured or an electrocardiogram and/or an analysis report based on the electrocardiogram test data stored in the memory card loaded in the card slot 116 under the control of the control unit 120. or to display the menu screen, etc. In this embodiment, the display unit 118 is assumed to be a touch display.
The printer 119 is, for example, a thermal printer, and prints out electrocardiogram waveforms and analysis reports in a predetermined format under the control of the control unit 120 .

The power supply unit 121 is, for example, a secondary battery or a commercial power supply (AC adapter), and supplies electric power to each unit of the electrocardiograph 100 .

The external I/F 123 is a general-purpose interface for wired connection with external devices. In this embodiment, the external I/F 123 is assumed to be an interface conforming to the USB 2.0 standard, but may be a general-purpose interface conforming to other standards. Also, the number of external I/Fs 123 may be two or more. Any USB-connectable external device 200 (for example, a USB memory or a personal computer) can be connected to the external I/F 123 .

When measuring and recording an electrocardiogram signal using the electrocardiograph 100 having such a configuration, the connector provided at the other end of the electrode group 110 is connected to the input unit 111, and the electrocardiograph 100 is powered on. In the ON state, the chest electrodes provided at one end of the electrode group 110 are attached to predetermined positions on the body surface of the subject's chest, and the limb electrodes are attached to the limbs of the subject.

When the electrode group 110 is connected to the input unit 111, the detected electrocardiogram signal is input to the input unit 111, processed by the A/D converter 112, the filtering unit 113, etc., and sent to the control unit 120 as electrocardiogram waveform data. is entered. The control unit 120 uses part of the internal RAM as a buffer to temporarily store electrocardiogram waveform data for the most recent predetermined number of seconds. Also, the control unit 120 starts displaying an electrocardiogram on the display unit 118 using the electrocardiogram waveform data in the buffer.

It is assumed that the electrocardiograph 100 of this embodiment has the following measurement modes.
(1) 12-lead automatic measurement mode Automatic analysis of 12-lead electrocardiogram signals measured in a predetermined period (for example, 10 seconds) from the time of inputting a recording start instruction (for example, pressing a start button of the operation unit 117). The electrocardiogram test data including the results are recorded and output to the display unit 118 and the printer 119 .
(2) 12-lead manual measurement mode From the time of inputting the recording start instruction until the time of inputting the recording stop instruction (for example, pressing the start button of the operation unit 117 again), the electrocardiogram of a part of the specified leads out of the 12 leads. The waveform is output from the printer 119 in real time.
(3) Arrhythmia measurement mode For three specified leads out of the 12 leads, the waveforms of the leads measured in a predetermined period (for example, several minutes) after the recording start instruction is input are displayed in real time by the printer 119. Output from
(4) Rhythm measurement mode For one of the 12 leads, the waveform of the lead measured in a predetermined period (for example, several minutes) after the recording start instruction is input is printed in real time by the printer 119. Output from
Note that these measurement modes and operations are merely examples, and it is not necessary to have all of these measurement modes, and other measurement modes may be provided.

When a recording start instruction is input from the operation unit 117, the control unit 120 executes a recording operation according to the set measurement mode, and when the set recording time elapses or the recording end instruction is received from the operation unit 117. When the input is detected, the recording operation is terminated.

When executing automatic analysis processing, the control unit 120 (analysis unit 1201) executes automatic analysis processing on the electrocardiogram waveform data for the recording period accumulated in the buffer. The control unit 120 generates examination data including electrocardiogram waveform data, its automatic analysis result data, and subject information data, and uses a memory card attached to the card slot 116 or an external device connected to the external I/F 123 to generate examination data. Record in the device 200 .

The format of the inspection data is not limited, and may be composed of a plurality of data files or a single data file. For example, when a data file containing subject information and electrocardiogram waveform data and data of automatic analysis results are generated as separate data files, a plurality of data files relating to the same examination are recorded so as to be distinguishable. For example, each data file can be recorded in the same folder, or can be recorded with the same file name but different extensions. In addition, when examination data is composed of one data file, a data file containing electrocardiogram waveform data, its automatic analysis result data, and subject information data is generated. These are merely examples, and inspection data may be generated in other ways.

In the case of the 12-lead automatic measurement mode, when the automatic analysis process is finished, the control unit 120 outputs the electrocardiogram waveform accumulated in the buffer and the automatic analysis result in a predetermined format to the display unit 118 and/or the printer 119. .

(Software key customization processing)
Next, software keys (function keys) and their setting screens in the electrocardiograph 100 of the present embodiment will be described with reference to FIGS. 2 and 3. FIG.
FIG. 2A is a diagram showing an example of a screen (examination screen 200) displayed on the display unit 118 when the electrocardiograph 100 is on standby for recording and during measurement. Here, it is assumed that electrodes are attached to the subject and the subject is in a state of waiting for an input of a recording start instruction (during recording standby).

The examination screen 200 has an index area 201 , an electrocardiogram area 202 and a function key area 203 .
In the header area 201, subject information, examination types, filter types applied by the filter processing unit 113, and the like are displayed, and a menu button 204 is arranged. Note that the number and types of information displayed in the heading area 201 are merely examples. The "buttons" and "keys" in the display screen are software keys. The electrocardiograph 100 of the present embodiment is configured such that the control unit 120 recognizes a predetermined touch operation (for example, tap operation) on the image area of the software key as the operation of the software key. Therefore, "operations" on "keys" and "buttons" in the following description mean predetermined touch operations on image areas of "keys" and "buttons." However, software key operations are not limited to direct operations on the image area. For example, an operation of a hardware key or button may be recognized as an operation of the associated software key.

In the electrocardiogram area 202, the electrocardiogram waveform being measured is displayed in a predetermined format in real time. The number and types of electrocardiogram waveforms to be displayed differ according to the set measurement mode. FIG. 2A shows a display example in the 12-lead automatic measurement mode.

The function key area 203 is arranged with software keys for the user to give instructions to the electrocardiograph 100 . Here, four function keys F1 to F4 and a page forward key 205 for instructing switching of the function keys displayed in the function key area 203 are arranged. In the present embodiment, function keys whose functions can be customized are so-called shortcut keys, and functions (menu items) assigned to function keys can be directly called without going through multiple levels of menus. Note that the functions assigned to the function keys F1 to F4 are not limited to functions for calling specific menu items. For example, a function that gives the electrocardiograph 100 a transition instruction to the previous screen may be fixedly (non-customizable) assigned.

The functions of the function keys F1 to F4 displayed in the function key area 203 are switched, for example, in the direction in which the number of pages increases each time the page forward key 205 is operated (returns to the first page after the last page). . The display "1/3" of the page turn key 205 indicates that a total of 3 pages (3 sets) of function keys F1 to F4 can be switched, and that the currently displayed page is the 1st page. there is Therefore, 12 function keys are available from the inspection screen 200 . Note that the total number of usable function keys may differ depending on the display screen.

When the menu button 204 is operated, the control unit 120 causes the display unit 118 to display a menu screen 220 as shown in FIG. 2(b).
Then, when a "function setting" button 221 included in the menu screen 220 is operated, the control unit 120 causes the display unit 118 to display a setting list screen 240 shown in FIG. 2(c).

When the "function key" button 241 is operated on the setting list screen 240, the control unit 120 displays function keys as shown in FIG. function allocation list screen 300 is displayed on the display unit 118 .

For the sake of convenience, in this embodiment, the target of function key setting is limited to the function keys on the inspection screen 200 , so the function assignment list screen 300 displays a list of settings related to the function keys on the inspection screen 200 . However, function keys on other screens may also be settable. In this case, the user is allowed to specify the screen on which the function keys are to be set, and a function allocation list screen corresponding to the specified screen is displayed. good.

As described above, since the electrocardiograph 100 has four measurement modes, functions assigned to function keys on the examination screen 200 can be set independently for each measurement mode. In other words, different functions can be assigned to one function key for each measurement mode.

FIG. 3A shows a state in which the function key function assignment list screen 300 is displayed for the 12-lead automatic measurement mode among the four measurement modes. When the control unit 120 detects an operation to change the measurement mode (an operation to select one of the tabs 303 to 308 corresponding to the measurement mode), the control unit 120 switches the display tab and displays a function assignment list screen for another measurement mode. .

A key selection area 301 of the function assignment list screen 300 displays a list of functions currently assigned to each of the function keys F1 to F4. Here, an example is shown in which function keys F1 to F4 displayed in the function key area 203 are displayed in a matrix in association with pages. Each function key displayed in the list can be selected.

When an operation to select any key is detected in the key selection area 301, the control unit 120 displays a function selection screen 310 that selectively displays a list of functions that can be assigned to the selected key. be displayed as For example, in the key selection area 301 of FIG. 3(a), when the selection operation of the function key 302 displayed as F1 on the first page is detected, the control unit 120 displays the function selection screen 310 shown in FIG. 3(b). display. Control unit 120 displays a function selection screen corresponding to the tab selected when the key selection operation is detected, that is, a function selection screen corresponding to the measurement mode. Accordingly, the function selection screen 310 in FIG. 3B is a function selection screen for the 12-lead automatic measurement mode. The measurement modes and the options of assignable functions are stored in association with the ROM in the control unit 120, for example.

A list of assignable functions is displayed on the function selection screen 310 so that currently assigned functions can be identified. As an example, the currently assigned function can be determined by selecting the radio button 311 corresponding to the currently assigned function among the radio buttons displayed in association with the function. In this example, the "freeze" function is assigned to the function key 302 displayed as the function key F1 on the first page, so the radio button 311 corresponding to "freeze" is displayed in a selected state.

For example, when an operation to a position corresponding to a function name on the function selection screen 310 or a selection operation of a radio button is detected, the control unit 120 changes the radio button corresponding to the function to the selected state, and keeps the radio button selected until then. The radio button that was in the state is changed to the non-selected state. Thus, only one option can be selected on function selection screen 310 .

A decision button 312 and a close button 313 are provided on the function selection screen 310 . An operation of the decision button 312 is a function decision operation. Upon detecting a function determination operation, control unit 120 assigns the function currently selected on function selection screen 310 to the key selected on function assignment list screen 300 , and then closes function selection screen 310 .

On the other hand, when detecting the operation of the close button 313, the control unit 120 closes the function selection screen 310 without changing the settings.

Thus, the electrocardiograph 100 of this embodiment has a function of manually changing functions assigned to function keys. However, using the function assignment list screen 300 and the function selection screen 310, it is not easy to change the functions assigned to the function keys so that frequently used functions are displayed on the first page.

Therefore, the electrocardiograph 100 of this embodiment provides a function of assisting in assigning functions to function keys. FIG. 4 is a flow chart relating to function key function assignment support operation performed by the processor of control unit 120 executing a program recorded in the ROM. The operations shown in FIG. 4 can be performed in parallel with other processes.

For example, the process shown in the flowchart of FIG. 4 can be started in the activation process of the electrocardiograph 100 . In S103, control unit 120 initializes a timer and a counter. Timers and counters may be values stored at specific addresses in RAM, for example. A timer is used to measure the elapsed time from the start of processing. The counter is used to count the number of function key operations from the start of processing for each function assigned to the function key. Therefore, the initial values of the timer and counter may both be zero.

Note that when the rewritable area of the non-volatile memory (ROM) is referenced at startup and the values of the timer and counter are stored, the control unit 120 sets the values read from the ROM as the initial values of the timer and counter.

In S105, the control unit 120 determines whether or not the function key has been operated. If it is determined that the function key has been operated, the process proceeds to S107, and if not determined, the process proceeds to S109. In order to detect a meaningful operation frequency, control unit 120 may determine that a function key has been operated only when operation of the function key is detected under a predetermined condition. For example, in the case of an electrocardiograph, from the input of one or more pieces of subject information (name, patient ID, etc.) or the detection of one or more electrocardiogram leads, at the start of the examination (operation of the start button of the operation unit 117) Only the function key operations detected during the period up to the time of detection) can be determined as valid function key operations. This is because in the case of an electrocardiograph, function keys are mainly operated until measurement is started. Also in other biological information measurement devices, conditions for detection as function key operations can be determined according to the contents of examination.

In S107, the control unit increments the count value corresponding to the operated function key by 1 and advances the process to S109. It is conceivable that the function assigned to the function key is changed during the period from the start of processing to the elapse of a predetermined time. Therefore, in this embodiment, the count value is managed for each assigned function, not for each function key position (combination of page number and position (F1 to F4)). Therefore, even if the function assigned to the function key is changed, the count value can be managed separately for the function before change and the function after change, and the number of times for each function can be correctly counted.

In S109, the control unit 120 compares the value of the timer with a predetermined threshold value to determine whether or not a predetermined time has elapsed since the start of processing. , and if not determined, the process returns to S105. Here, the predetermined period of time may be, for example, a period of about one week to one month. It should be noted that the predetermined period may be the accumulated time only during the period in which the power of the electrocardiograph 100 is on, or may simply be the elapsed time according to the calendar. Also, instead of time, the number of electrocardiogram measurements may be used as the threshold for the predetermined time.

In S111, the control unit 120 determines the function to be assigned to the function key displayed at each position on each page based on the count value (the number of operations). Specifically, the function with the largest count value (the function with the highest frequency of use) is assigned to F1 on page 1, and then assigned to F2 and subsequent pages on page 1 in descending order of the count value. Allocation continues in order from F1 on the next page. Note that functions having the same count value (frequency of use) can be assigned according to the arrangement in the initial state, for example.

Also, on the function assignment list screen 300 shown in FIG. 3A, it may be possible to set so that the assignment is not changed for each function key. In this case, in S111, the control unit 120 determines the allocation order by excluding the functions whose allocation is set not to be changed. Then, it skips the positions of the function keys to which the functions set so as not to change the allocation are assigned, and determines the functions to be assigned to the function keys at each position.

Although there are no restrictions on the setting method for preventing the assignment from being changed, for example, a predetermined operation of the function keys listed in the key selection area 301 of the function assignment list screen 300 (for example, selecting continuously for a certain time or longer) operation) can be configured to be recognized as a setting switching operation to disable or enable the assignment of the function to the function key. For example, the display form in the key selection area 301 may be different from the function keys whose function assignments are changeable, such as by graying out function keys whose function assignments are set not to be changed.

After determining the functions to be assigned to the function keys of each page and each position in S111, the control unit 120 advances the process to S113. In S113, the control unit 120 executes preview processing. The preview process is a process of presenting the function allocation automatically determined by the control unit 120 in S111 to the user and requesting confirmation before actually allocating the function keys.

Here, when the function to be assigned to the function key is determined in S111, the process unconditionally proceeds to S113, but the process may proceed from S111 to S113 only when a specific condition is satisfied. The specific condition may be, for example, when the electrocardiograph 100 is activated, when transitioning to a menu screen, or when transitioning to a function key setting screen, but is not limited to these.

In the preview process, the control unit 120 displays, for example, a key selection area 301 on a screen similar to the function allocation list screen 300, in which the functions are assigned in the order automatically determined based on the frequency of use within the predetermined period in S111. Further, as shown in FIG. 5, for example, the control unit 120 displays a message dialog 510 for inquiring of the user whether to approve the automatically determined function assignment so as not to hide the display of the function keys in the key selection area 301. indicate.

The message dialog 510 can include, for example, a “run” button 511 , a “modify” button 512 and a “cancel” button 513 . In S115, S117 and S119, the control unit waits for any button to be operated. When the operation of the "execute" button 511 is detected (S115, Y), the control unit 120 advances the process to S121, and executes the setting process of assigning the functions to the function keys so as to realize the preview-displayed assignment. . After that, the control unit 120 returns the process to S103.

On the other hand, when the operation of the "change" button 512 is detected (S117, Y), the control unit 120 advances the process to S123, erases the dialog message, and The process shifts to manual customization processing, changes the function allocation according to the user's operation, returns the processing to S113, and executes the preview processing again. If a change is made in S123, the change is reflected in the preview display.

Further, when the operation of the “cancel” button 513 of the message dialog is detected (S119, Y), the control unit 120 returns the processing to S103 without changing the setting of the function key. In this case, even if a change has been made in S123, the change is invalidated.

In addition, as described above, in the present embodiment, a function for each measurement mode can be assigned to one function key. Therefore, the function assignment operation described with reference to FIG. 4 is performed independently for each measurement mode (for each tab on the function key function assignment list screen 300 in FIG. 3A). That is, the number of selections and the elapsed time for each function are managed for each measurement mode. Therefore, the positions of function keys to which functions common to a plurality of measurement modes are assigned may differ depending on the measurement mode.

As described above, according to this embodiment, it is possible to realize a biological information measuring apparatus having a function of automatically determining functions to be assigned to software keys according to the frequency of use of the functions. Therefore, even if the user is not particularly aware of it, while using the biological information measuring device, allocation of functions suitable for the usage environment and/or the user is realized. In addition, since it is possible to change the allocation automatically determined by the biological information measuring device, it is possible to allocate functions according to the user's intention. In addition, by making it possible to set function keys that fix the assignment of functions, the same functions are always assigned to the function keys in the same position, and the rest of the function keys are set according to the determination of the device. be able to.

The biological information measuring device according to the present invention can also be realized as a program (application software) that causes a general-purpose information processing device such as a personal computer, a tablet terminal, and a smartphone to execute the operation of the control unit 120 described above. The present invention can also be implemented as a program that is stored in a ROM of the biological information measuring device and causes a processor of the biological information measuring device to implement the above-described operation of the control unit 120 . Therefore, such programs and recording media storing the programs (optical recording media such as CD-ROMs and DVD-ROMs, magnetic recording media such as magnetic discs, semiconductor memory cards, etc.) also constitute the present invention. .

DESCRIPTION OF SYMBOLS 100... Electrocardiograph, 118... Display part, 120... Control part, 123... External I/F, 1201... Analysis part

Claims (12)

A biological information measuring device using a part of a display screen as an area for displaying software keys,
A biological information measurement apparatus, comprising control means for automatically determining a function to be assigned to the software key based on the frequency of use of the function. The control means is
presenting a list of assignments of the determined functions before actually assigning the determined functions to software keys;
When an execution instruction is entered, assigning a function to a software key according to the list;
The biological information measuring device according to claim 1, characterized in that: 3. The biological information measuring apparatus according to claim 2, wherein said control means accepts changes to the presented allocation of functions. 4. The biological information measuring apparatus according to claim 3, wherein, when receiving a change in the allocation of the presented functions, the control means reflects the change in the list. The control means performs the determination by excluding functions whose assignments are set not to be changed, and presents the list so as not to change the assignments of functions whose assignments are set not to be changed. The biological information measuring device according to any one of claims 2 to 4, characterized by: 6. The biological information measuring apparatus according to claim 5, wherein the control means presents the list in such a manner that the functions set not to be changed are identifiable. The biological information measuring device has a plurality of measurement modes,
7. The biological information measuring apparatus according to any one of claims 1 to 6, wherein the control means determines the function to be assigned to the software key for each measurement mode. The control means further includes:
displaying a plurality of software keys and a switching key in the area;
switching the plurality of software keys displayed in the area each time the switching key is operated;
The biological information measuring device according to any one of claims 1 to 7, characterized in that: The control means determines the usage frequency by regarding only the operation of the software key detected under the condition corresponding to the type of the biological information measuring device as the use of the function assigned to the software key. The biological information measuring device according to any one of claims 1 to 8. 10. The biological information measuring device according to any one of claims 1 to 9 , wherein the biological information measuring device is an electrocardiograph or a biological information monitoring device. A control method for a biological information measuring device using a part of a display screen as an area for displaying software keys,
A control method for a biological information measurement device, wherein the control means automatically determines a function to be assigned to the software key based on the frequency of use of the function. A program for causing a processor included in the biological information measuring device to function as the control means included in the biological information measuring device according to any one of claims 1 to 9 .

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