JP6871680B2 - Biological information measuring device and its control method, program - Google Patents

Description

The present invention relates to a biological information measuring device and a control method thereof.

The biological information measuring device measures and outputs one or more of biological information such as electrocardiogram, respiratory rate, heart rate, blood pressure, body temperature, arterial oxygen saturation (SpO ₂ ), and terminal carbon dioxide concentration (EtCO _2). It is a device for displaying, printing, etc.) and is widely used in the medical field. For example, various biometric information measuring devices such as a sphygmomanometer, an electrocardiograph, a pulse oximeter, and a capnometer are known. Further, among the biometric information measuring devices, the device whose main purpose is to monitor the measured biometric information is also called a biometric information monitor or a monitoring device (Patent Document 1).

Normally, the biometric information measuring device has a display function and an alarm function, but customization that can change the type and number of information to be displayed, screen layout, display color, conditions for generating an alarm (alarm setting), etc. Some have a function.

In particular, when there are a plurality of biometric information to be measured (including the case where even one type has a plurality of measurement channels as in an electrocardiogram), displaying all the biometric information may make the display complicated or display. The size may become smaller and the visibility may decrease. Therefore, by using the customization function, it is possible to display only a part of the biological information at all times, or to display the information larger than the other biological information. Further, by changing the display color according to the type (or channel) of the biological information, it is possible to intuitively confirm the desired biological information among the plurality of biological information displayed at the same time. By changing the alarm setting according to the usage environment of the device (for example, whether it is during emergency transportation or in a hospital room), it is possible to generate an alarm with a sensitivity according to the environment.

JP-A-2015-29566

While such a customization function can improve the convenience of the user, it can also be a factor that confuses the user. For example, when a doctor belonging to one medical institution regularly performs medical treatment at another medical institution, different customization contents in each medical institution may cause misreading and stress. It may be possible to customize the settings of the equipment of the medical institution on the go to the settings that you are accustomed to, but it takes time and effort.

For example, by making it possible to save, recall, and use the customized contents in a data format such as a setting file, it is possible to easily realize the desired customized contents. However, as the number of customizable items increases, the customization will be subdivided according to the purpose, and the number of configuration files will also increase. When each of the medical staff who shares a certain device saves a plurality of setting files, it becomes difficult to find the desired setting file.

The present invention has been made in view of such problems of the prior art, and one of the objects of the present invention is to provide a biometric information measuring device whose setting contents can be easily changed and a control method thereof.

The above-mentioned purpose is a biometric information measuring device that measures the biometric information of a patient, and there is a storage means for storing the setting contents of the biometric information measuring device in association with a user as a setting file, and an instruction to call the setting file. In this case, the screen for identifying the user who gave the instruction based on the result of user authentication and selecting one of the configuration files saved in association with the identified user from the configuration files saved in the storage means is displayed. is displayed on the display unit, are accomplished by the biological information measuring apparatus characterized by having a control means for Ru reflect the settings of the selected configuration file into the biological information measuring device from the screen.

With such a configuration, according to the present invention, it is possible to provide a biometric information measuring device whose setting contents can be easily changed and a control method thereof.

It is a perspective view which shows the appearance example of the biological information monitor which concerns on embodiment of this invention. It is a block diagram which shows the functional structure example of the biological information monitor which concerns on embodiment. It is a figure which shows the example of the display screen of the biological information monitor which concerns on embodiment. It is a figure which shows the example of the display screen of the biological information monitor which concerns on embodiment. It is a figure which shows the example of the display screen of the biological information monitor which concerns on embodiment. It is a flowchart which concerns on the operation of the biological information monitor which concerns on embodiment. It is a figure which shows the example of the display screen of the biological information monitor which concerns on embodiment. It is a flowchart which concerns on the operation of the biological information monitor which concerns on the modification of embodiment.

Hereinafter, the present invention will be described in detail with reference to the drawings based on its exemplary embodiments. Hereinafter, an embodiment in which the present invention is applied to a biological information monitor as an example of a biological information measuring device will be described. The present invention is particularly useful in a biometric information measuring device that measures and displays a large amount of biometric information in parallel, such as a biometric information monitor, but is applicable to any biometric information measuring device provided with a display device. ..

FIG. 1 is a perspective view showing an appearance example of the biological information monitor 100 according to the embodiment of the present invention, and FIG. 2 is a block diagram showing a functional configuration example of the biological information monitor 100.
The biological information monitor 100 has an input unit 110 to which various sensors and measurement modules can be connected, displays biological information data (signal waveforms and measured values) sequentially obtained from the sensors, and detects an abnormality. This is a device for constantly monitoring the patient's condition. Since the biological information monitor 100 is mainly used for patients who need to constantly monitor vital signs, such as patients undergoing surgery and patients in the ICU, electrocardiogram, respiratory rate, heart rate, and blood pressure (open blood and non-open blood). It has a function of measuring a plurality of biological information such as open blood, body temperature, arterial oxygen saturation (SpO ₂ ), and terminal carbon dioxide concentration (EtCO _2).

The input unit 110 includes connectors and interfaces that mechanically and electrically connect various sensors and measurement modules. In this embodiment, it is assumed that the following sensors and measurement modules are connected as an example. Bidirectional communication is possible depending on the measurement module connected to the input unit 110.

The electrocardiographic electrode 111 is composed of a plurality of electrodes attached to a predetermined portion on the surface of the patient's limbs and / or chest, and detects an induction waveform according to the attachment site. The number and type of electrocardiographic electrodes 111 differ depending on the number and type of induced waveforms to be measured. In addition, the respiratory rate can be calculated by an impedance method in which a weak high-frequency current is applied between the electrocardiographic electrodes to measure the impedance of the thorax and the movement of the thorax is detected from the change. The blood pressure transducer 112 is attached to the end of a catheter inserted into a patient's blood vessel to convert blood pressure into an electrical signal.

The pulse wave / SpO ₂ sensor 113 is a so-called pulse oximeter, which _{optically detects and inputs arterial oxygen saturation (SpO 2} ) and fingertip volume pulse wave. Taking advantage of the fact that the light absorption of hemoglobin differs depending on whether or not it is bound to oxygen, and that the absorption also differs depending on the wavelength of light, arterial oxygen saturation is generally used at two wavelengths, red light and infrared light. To measure. Further, since the AC component of the transmitted light or the reflected light changes according to the blood volume, this AC component is detected as an optical fingertip plethysmograph (PTG).

The body temperature sensor 114 is, for example, a thermistor temperature sensor worn on a patient and shows a resistance value according to the temperature. The cardiac output sensor 115 is a thermistor temperature sensor placed in the blood vessel of the patient and measures the blood temperature. The thermal dilution curve can be obtained from the time change of blood temperature, and the cardiac output (CO) can be obtained from the formula applying the injectable temperature and the Stewart-Hamilton formula. In addition, vascular resistance (SVR) can be obtained from the cardiac output and the blood pressure value. The cardiac output may be determined non-invasively by the impedance method. The respiratory gas sensor 116 measures the _{exhaled terminal carbon dioxide concentration (EtCO 2} ) based on, for example, infrared light absorbance. The sensor and module connected to the input unit 110 shown in FIG. 2 are merely examples, and other ones may be included or some of the illustrated ones may not be included.

The non-invasive blood pressure monitor 117 includes a cuff, a pump, an exhaust valve, a pressure sensor, and the like. By acquiring the signal of the pressure sensor, the blood pressure can be measured non-invasively by the oscillometric method. Since non-invasive blood pressure cannot be measured continuously, measurement is performed at predetermined regular intervals or each time an instruction is given. The operation of the non-invasive blood pressure monitor 117 (operation of the pump and the exhaust valve) is controlled by the control unit 140 through the input unit 110.

The preprocessing unit 120 executes predetermined preprocessing according to the signal, such as A / D conversion processing and application of a power supply noise removal filter, to the biological signal or measured value received by the input unit 110, and buffer memory. Store at 130. The preprocessing unit 120 may be configured by hardware such as a DSP or ASIC, or at least a part of the functions may be realized by software by the control unit 140. The buffer memory 130 is used as a temporary storage of signals, a work area of the control unit 140, and a video memory.

The control unit 140 has, for example, a programmable processor such as a central processing unit (CPU), a RAM, and a ROM, and controls the operation of the biometric information monitor 100 by loading the program stored in the ROM into the RAM and executing the program in the CPU. And realize the overall function. At least a part of the ROM may be rewritable.

The external interface (I / F) 150 is a communication interface, and is connected to the external device directly by a connector provided in the housing of the device or via a cable 195. The external I / F 150 may also include a wired and / or wireless network interface and may be communicable with an external device on the network, such as a central monitor.

When the control unit 140 determines that the operation of the device, biometric information data, etc. satisfy the conditions specified in the predetermined conditions (alarm setting), the alarm indicator 160 outputs an alarm by, for example, light or sound. One or more output devices for notifying. The alarm indicator 160 may typically be a light emitting element or a speaker. Alarms can be divided into levels according to their importance (level), and alarms can be output according to their importance. The alarm can be combined not only with the alarm indicator 160 but also with a message display on the touch display 170. The control unit 140 stops the output of the alarm when, for example, a predetermined operation on the operation unit 180 is detected.

The touch display 170 is a display device having a touch panel function. The control unit 140 displays one or more of the measured biological information data, for example, electrocardiographic waveform, heart rate, body temperature, blood pressure value, respiratory rate, and respiratory waveform on the touch display 170 in real time by a predetermined display format (layout). Display it. Further, the control unit 140 changes the content and / or layout to be displayed on the touch display 170 in response to an instruction through the operation unit 180 or the touch display 170. For example, a plurality of initial settings for the combination of layout and display items are defined, and the user can switch the screen layout through the operation of the operation unit 180 or the touch display 170, and add or delete display items regarding the layout being displayed. Can be done.

The operation unit 180 is a group of keys and switches including a power switch and a menu display key, and enables a user to input instructions and information to the biometric information monitor 100. At least a part of the switches and keys constituting the operation unit 180 may be realized as software keys in which the touch panel provided on the touch display 170 and the GUI display by the control unit 140 are combined. Further, the operation unit 180 may include an external key or switch (remote controller or the like).

In the present embodiment, the operation unit 180 can have a biometric authentication information input unit 181. The biometric authentication information input unit 181 is configured to input user biometric information (for example, fingerprint, iris, voice print, vein pattern, face image, etc.) as user-specific information used for user authentication (specification) of the biometric information monitor 100. Is. Therefore, the biometric authentication information input unit 181 has sensors (fingerprint sensor, etc.) and input devices (microphone, camera, etc.) corresponding to the biometric information to be input.

The storage unit 190 is a storage device for storing measurement data and for storing registered user information and setting files, which will be described later. At least a part of the storage unit 190 may be configured to use a removable storage medium such as a memory card.

In addition to the configuration shown in the figure, a printer (recorder) or the like may be provided. Further, the power supply of the biological information monitor 100 may be supplied by any of a battery, a commercial power supply, or an external device connected to the external I / F 150. When the power is supplied through the external I / F 150, the biometric information monitor 100 operates with the power supply from the external I / F 150 and also charges the built-in battery.

In the biological information monitor 100 having such a configuration, for example, when the power is turned on through the operation unit 180, the processing for the biological signal and the measured value received through the input unit 110 is started. Specifically, the preprocessing unit 120 performs A / D conversion or filter processing on the biological signal or the measured value, and starts to save the biological information data in the buffer memory 130. Then, the control unit 140 starts calculation processing, display processing, evaluation processing, abnormality determination processing, and the like of various parameters based on the biological information data stored in the buffer memory 130.

Further, the control unit 140 transfers biometric information data from the buffer memory 130 to the storage unit 190, and when a preset event occurs, the control unit 140 sends predetermined information (for example, biometric information data at the time of event occurrence) as an event. It is associated with and saved in the storage unit 190. The control unit 140 further analyzes biometric information data in response to a user instruction through the operation unit 180 or the touch display 170 to generate a report in a predetermined format, displays the report on the touch display 170, or prints the data on the recorder. There are various types of reports, but list output and trend output, which are useful for grasping changes over time in biological signals and the occurrence of events, are typical examples of reports.

The control unit 140 monitors the external I / F 150, and when it detects that the external device is connected to the external I / F 150, it establishes communication with the external device and information on the external device (for example, regarding the type and function of the device). Information) is acquired. The control unit 140 also establishes communication with a management device (for example, a central monitor) on the network when the external I / F 150 is connected to the network. In response to a request from the management device, the control unit 140 starts outputting biometric information data through the external I / F 150, requests the management device to execute the user authentication process described later, or requests the management device to execute the user information. You can request a transmission.

(Customization function)
The biological information monitor 100 of the present embodiment has a function (customization function) that allows the user to change setting values for various items. The customization function can be called by, for example, a specific key operation included in the operation unit 180, and when the specific key operation is detected, the control unit 140 displays the setting screens of various items on the touch display 170. The biological information monitor of the present embodiment has a hierarchical screen configuration that matches the hierarchical menu configuration. The menu screen of each layer includes one or more menu items, and the control unit 140 displays the lower menu screen if the selected item has a lower menu item, and the lower menu item must be present. If so, the operation according to the selected item is executed.

FIG. 3A shows a screen display example in which the operation of selecting the item “setup” 3011 is performed on the top-level menu screen 301, and the menu screen 302 including the menu item related to “setup” is displayed. ing. In the example of FIG. 3A, among the items included in the uppermost menu screen 301, the menu items of the lower layer are included except for “patient entry / exit”. For menu items that include lower layer menu items, an index (here, a triangle pointing to the right as an example) is given to indicate it.

For example, when the item "screen configuration" (not including lower menu items) of the menu screen 302 is selected, the control unit 140 displays a setting screen related to the screen configuration. The user can change the current settings related to the screen configuration through the setting screen. The same applies to other items. When the operation of closing the setting screen is detected, the control unit 140 determines whether or not the setting content has been changed, and if it is not determined that the setting content has been changed, the control unit 140 closes the setting screen without doing anything in particular. On the other hand, when it is determined that there has been a change, the control unit 140 first inquires the user through the screen whether or not to reflect the changed content, and closes the setting screen without doing anything if instructed not to reflect the change. .. If instructed to reflect, the control unit 140 reflects the changed setting to the current setting and asks the user whether to save the setting file reflecting the setting change through the screen.

When the user instructs not to save the setting file, the control unit 140 does nothing in particular, but when instructed to save the setting file, the save screen of the setting file is displayed. The save screen of the setting file may be the same as the one displayed on a general OS, which can be saved by specifying the file name. However, the save destination may be limited to a specific folder. Therefore, the user can overwrite the setting file with the existing setting file or save it as another setting file. When the save instruction of the setting file is input, the control unit 140 executes the user authentication process to identify the user who has instructed to execute the save operation, and then the unique information of the specified user (for example, the user ID). ) And save the configuration file. Alternatively, it may be presumed that the saving operation is performed by the user who is logged in to the biometric information monitor 100, and the setting file may be saved in association with the unique information of the logged-in user without requesting authentication.

The configuration file can contain configuration values for all user-configurable items, but can be configured by the user, for example, excluding items that are not directly related to device operation, such as patient-specific information. Only some of the possible items may be included.

In the biological information monitor 100 of the present embodiment, the setting of the alarm generation condition for each measured value can be changed through the lower menu screen of the item "alarm". In addition, through the lower menu screen of the item "parameter setting", it is possible to change the setting of items related to measurement such as the method of guiding the electrocardiogram and the filter setting applied to the electrocardiogram signal. In addition, the settings related to the review function related to past measurement data such as trends and lists can be changed through the lower menu screen of the item "function". You can also change settings such as screen configuration (type and layout of biometric information displayed on the screen during measurement), color (display color), brightness, initial settings, and sound settings through the lower menu screen of the item "Setup". it can. It should be noted that these are merely examples, and the items that can be set are not particularly limited.

(User registration and authentication)
The biometric information monitor 100 of the present embodiment requires user authentication (identity verification) for executing a predetermined function. For example, if there is an instruction to change the setting that affects the measurement operation or monitoring of the measurement result (operation to change the setting through the lower menu screen of the item "alarm" or "parameter"), or the setting screen for changing. User authentication can be requested when a display instruction is given. In addition, when executing a function that uses data stored in association with a user, user authentication can be requested to identify the user. There are no particular restrictions on the functions that require (require) user authentication for execution.

User authentication may be performed by the biometric information monitor 100, but it can also be requested to an external device. When user authentication is performed by an external device, the biometric information monitor 100 transmits the unique information for user authentication input by the user to the external device, and receives the authentication result from the external device. There are no particular restrictions on the authentication method, and a combination of user identification information (for example, user ID, user name, etc.) and password can be used, or user-specific biometric information (for example, fingerprint, iris, voiceprint, vein pattern, face image, etc.). Or a specific input pattern can be used. Here, the specific input pattern may be, for example, gesture input to a contact sensing device such as a touch display 170, or operation of a specific key (including a software key) in a specific order. Not limited to.

The user-specific information for authentication can be registered as a part of the user information in the user registration process for the biometric information monitor 100 or the management device (for example, central monitor) of the medical network system in which the biometric information monitor 100 is used. It should be noted that a plurality of types of user-specific information for authentication can be registered for one user. In addition to user-specific information for authentication, user information may include a name, affiliation, occupation (doctor, nurse, laboratory engineer, etc.), and contact information (email address, etc.). In addition, management information such as the login status of the user (whether the user is logged in or not, from which device the user is logged in, etc.) can be retained for each user.

The user information can be stored in, for example, the storage unit 190 of the biological information monitor 100 or the non-volatile memory inside the control unit 140. Alternatively, or further, the user information can be stored in the storage device of the medical network management device with which the biometric information monitor 100 can communicate. User information can be stored in any location accessible by the biometric information monitor 100 or at least one of the devices on the medical network system with which the biometric information monitor 100 can communicate. The user registration process can be executed by any known method such as input through the user registration screen or the like on the biometric information monitor 100 or any device on the medical network.

When the biometric information is saved as the user's unique information, the biometric information is acquired from the user by using an input device (for example, biometric authentication information input unit 181) corresponding to the biometric information to be saved, and a format suitable for the authentication method. You can register at. When registering a gesture as user-specific information, for example, a screen as shown in FIG. 4A is displayed on the touch display, and the user is made to input a continuous trajectory touch-input by a finger or a stylus. As a result, the gesture can be registered as a locus that passes through the intermediate points in a specific order from the start point (401) to the end point (402). When registering a specific input pattern as user-specific information, for example, a plurality of software keys displaying different colors, symbols, pictures, patterns, etc. are displayed on the touch display, and the color selected by the user or the like. The order of symbols and the like can be registered as an input pattern. The registration method described here is merely an example, and biometric information, gestures, input patterns, and the like can be registered as unique information for user authentication by using any other method.

In addition, user authentication when logging in to the biometric information monitor 100 or the medical network to which the biometric information monitor 100 is connected (first user authentication), and further user authentication for the logged-in user (second and subsequent user authentication). May be carried out in another way. For example, the first user authentication can be performed more rigorously than the second and subsequent user authentications, or in a way that is more difficult to spoof. Alternatively, the second and subsequent user authentications can be performed by a method that facilitates the input of user-specific information, such as a smaller number of input items than the first user authentication.

(Setting restrictions according to authority)
The biological information monitor 100 can set restrictions according to the user's authority regarding setting changes. FIG. 3 (b) shows an example of a change restriction setting screen regarding the setting in the biological information monitor 100, and is displayed by selecting "initial setting" which is a subordinate item of "setup" in FIG. 3 (a). .. Similar to FIG. 3A, the change restriction setting screen 310 displays the menu items hierarchically and accepts the setting and cancellation of the change restriction for each item. FIG. 3B shows a state in which "alarm" is selected from the top-level menu items and subordinate items of "alarm" are displayed. The setting / release keys 311, 312 are displayed adjacent to the left of each item so that they can be selected. An icon imitating a padlock is displayed on the setting / unlock keys 311, 312, indicating that the locked icon has a limit set and the unlocked icon has no limit set. There is.

Therefore, in the state shown in FIG. 3B, the biological information monitor 100 is not restricted with respect to the selection of the top-level menu item, but the alarm setting is restricted with respect to any item. Restrictions can be set according to user privileges, such as administrator privileges and non-administrator privileges. The settings can be saved in the non-volatile memory inside the control unit 140 or the storage unit 190. Note that administrator authority is required to change the settings, and when the setting / release key is selected, the control unit 140 requests user authentication, and it was confirmed that this is an operation of a user with administrator authority. Change settings only if.

The authority for each user may be included in the user information. For example, a doctor or a laboratory technician has an administrator authority, and a nurse has a non-administrator authority (not an administrator authority). In addition, the determination may be made according to the type of job included in the user information.

FIG. 5 shows an example of display control according to user authority. 5 (a) and 5 (b) show menu display examples when the logged-in user of the biometric information monitor 100 has or does not have the administrator authority. When the logged-in user does not have the administrator authority, as shown in FIG. 5B, the locked icon 501 is attached to the item for which the restriction is set. When an item with the locked icon 501 is selected, the control unit 140 requests user authentication, and displays the setting screen only when it can be authenticated that the user has administrator authority. Alternatively, if the user does not have administrator authority, items for which restrictions are set may not be displayed.

Note that, for example, even if the logged-in user has administrator authority, the logged-in user does not necessarily perform the setting operation. In a place where a large number of medical personnel exist, such as an operating room, users with various privileges can operate the biometric information monitor 100. In such an environment, if the operation is performed assuming that the logged-in user is performing the operation, the restriction may not work sufficiently. Therefore, even if the logged-in user has administrator authority, he / she may request authentication again (from the second time onward) when executing a specific predetermined function.

(Operation during measurement)
Next, using the flowchart shown in FIG. 6, a process performed by the biometric information monitor 100 in the present embodiment in parallel with the biometric information measurement process will be described. The operation of the biometric information monitor 100 described below is realized by executing a program by one or more programmable processors included in the control unit 140 and controlling the operation of each unit of the biometric information monitor 100. Note that at least a part of the processing may be realized by dedicated hardware.

In the present embodiment, the control unit 140 of the biological information monitor 100 monitors the external I / F 150 while executing normal measurement processing such as measurement, storage, display, and monitoring processing of biological information. Then, when it is detected that the external device is connected due to a change in the potential of a specific signal line of the external I / F 150 or the like, the control unit 140 executes a predetermined procedure for establishing communication. , Establish communication with an external device connected to the external I / F 150. Further, the control unit 140 acquires information on the external device (for example, information on the type and function of the device) from the external device. Based on this information, the control unit 140 can know whether the external device is a network management device. In the following description, it is assumed that the biometric information monitor 100 is connected to the medical device network through the external I / F 150 and communication with the central monitor functioning as a network management device is established.

The control unit 140 also monitors whether or not any input (operation) has been performed on the touch display 170 or the operation unit 180 (S101). Then, when it is determined that the input has been made, the control unit 140 determines in S103 and S119 whether the input is a call instruction on the setting screen, a call instruction on the setting file, or another instruction. If the operation on the touch display 170 or the operation unit 180 is neither a call instruction on the setting screen nor a call instruction on the setting file, the control unit 140 advances the process to S135. In S135, the control unit 140 executes a process corresponding to the operation on the touch display 170 or the operation unit 180, and returns the process to S101.

On the other hand, when it is determined in S103 that the operation on the touch display 170 or the operation unit 180 is a call instruction on the setting screen, the control unit 140 proceeds to the process in S105 and requests the authentication input. The method of authentication here can be changed depending on whether or not the user is logged in to the biometric information monitor 100.

For example, when the user is not logged in (there is a logged-in user), the control unit 140 displays a login screen as shown in FIG. 5C on the touch display 170, and requests the user to input an ID and a password. For example, when the user ID field 403 or the password field 405 is tapped, the control unit 140 displays a software keyboard on the touch display 170 to assist the user in inputting the user ID and password. Then, when the OK button 407 is operated, the control unit 140 executes the user authentication process using the input user ID and password.

When the user is logged in (there is a logged-in user), the control unit 140 displays the gesture input screen as shown in FIG. 5B on the touch display 170, and requests the user to input the gesture. When a touch operation on the gesture input screen is detected, the control unit 140 periodically detects and records the touch position until the touch operation is completed. When the touch operation is completed, the control unit 140 executes the user authentication process using the recorded touch position information (gesture information). When it is detected that the authentication method change key 411 has been operated on the gesture input screen, the control unit 140 switches to the unique information input screen used in another authentication method. For example, FIG. 4D is a screen display example when changing to fingerprint authentication. In this case, the control unit 140 acquires fingerprint information from the fingerprint sensor of the biometric authentication information input unit 181. It should be noted that which authentication method can be used can be set in advance.

When the user information exists in the biometric information monitor 100, the control unit 140 determines whether or not the user information matching the input unique information (here, the combination of the user ID and the password or the gesture information) exists. Judgment is made by referring to the non-volatile memory or the storage unit 190 inside. Then, the control unit 140 refers to the user's authority when the authentication is successful.

When the user information does not exist in the biometric information monitor 100, the control unit 140 transmits an authentication request together with the input unique information to the management device on the network through the external I / F 150. The management device uses the unique information received from the biometric information monitor 100 to refer to its own storage unit and execute the authentication process. If there is a device other than the management device on the network that performs the authentication process, the biometric information monitor 100 or the management device may request the device to perform the authentication process. When the control unit 140 requests the device on the network for the authentication process, the control unit 140 receives the authentication result through the external I / F 150. The authentication result includes information about the success or failure of the authentication, and if successful, the user's privileges.

In S107, the control unit 140 determines whether or not the user has succeeded in authenticating, and if it is determined that the user has been successfully authenticated, the screen for authentication is erased and the process proceeds to S109. If it is not determined that the user has been successfully authenticated, for example. After displaying the message that the authentication has failed, the authentication screen is cleared and the process is returned to S101. If the authentication fails, S105 may be repeatedly executed until the cancel button on the authentication screen is operated or the authentication fails consecutively a predetermined number of times.

In S109, the control unit 140 confirms the authority of the logged-in user, and in S111, displays a setting screen according to the authority of the logged-in user on the touch display 170. For example, the control unit 140 displays a setting screen in which the alarm setting can be changed for a user who has administrator authority, and a setting in which the alarm setting cannot be changed for a user who does not have administrator authority. The screen can be displayed.

In S113, the control unit 140 executes display processing and setting change processing according to the user operation on the setting screen. Then, the control unit 140 advances the processing to S133 when the setting completion instruction (for example, the setting saving instruction) is detected, and to S117 if the setting completion instruction is not detected.

In S117, the control unit 140 returns the process to S101 when a cancel instruction (for example, an instruction to close the setting screen without saving the setting) is detected, and returns to S113 if the cancel instruction is not detected.

In S133, the control unit 140 reflects the setting changed through the setting screen on the current setting value of the biometric information monitor 100, and returns the process to S101.

When it is determined in S119 that the operation on the touch display 170 or the operation unit 180 is an instruction to call the setting file, the control unit 140 proceeds to the process in S121 and requests the authentication input. Similar to S105, the authentication process in S121 may change the authentication method depending on the presence or absence of a logged-in user, or the authentication method can be determined regardless of the presence or absence of a logged-in user. It is considered that the call to the setting file is executed more frequently during the measurement than the call to the setting screen, and it is also considered that it often affects only the settings that do not affect the measurement operation such as the display style. Therefore, it is possible to use an authentication method that emphasizes the ease of inputting unique information for authentication.

For example, biometric information, gesture input, and a specific key input pattern have a smaller number of input items than a method of keyboard input of each of two items such as a user ID and a password. Furthermore, biometric information and gesture input can be input with a single operation, and if face recognition is used, no input operation is substantially required.

In addition, face recognition, gesture input, and specific key input patterns are easy to input even when wearing gloves. In the case of gesture input, it is preferable because it saves the trouble of searching for a key and it is possible to trace the screen without operating an erroneous key. Further, if the environment is such that the user's face can be photographed satisfactorily, a method such as face recognition that does not require the user to directly input unique information may be preferable.

In S123, the control unit 140 determines whether or not the user has succeeded in authenticating, and if it is determined that the user has been successfully authenticated, the screen for authentication is erased and the process proceeds to S125. If it is not determined that the user has been successfully authenticated, for example. After displaying the message that the authentication has failed, the authentication screen is cleared and the process is returned to S101. If the authentication fails, S121 may be repeatedly executed until the cancel button on the authentication screen is operated or the authentication fails consecutively a predetermined number of times.

In S125, the control unit 140 extracts (searches) and extracts the setting file saved in association with the authenticated user from the setting files stored in the non-volatile memory or the storage unit 190 in the control unit 140. Acquire the identification information (for example, file name) of each searched file.

In S127, the control unit 140 displays the setting file selection screen on the touch display 170 using the identification information acquired in S125. FIG. 7 shows an example of the setting file selection screen. Here, an example of a file selection screen in which six setting files can be selected per screen is shown, but there is no particular limitation on the number of setting files displayed per screen.

The example shown in FIG. 7 shows the case where three setting files saved in association with the authenticated user are found, and among the buttons 901 to 906 for selecting the setting file, 3 of 901 to 903. First, the identification information of the configuration file (here, the file name excluding the extension) is displayed. The user can instruct the selection of the setting file by selecting (for example, tapping) the button corresponding to the desired setting file.

In S129, the control unit 140 determines whether or not the selection instruction of the setting file has been input, and if it is determined that the input has been input, the process proceeds to S133, and if it is not determined to have been input, the process proceeds to S131.

In S131, the control unit 140 processes the cancel instruction (for example, when there is no selection input for a certain period of time, the cancel input from the operation unit 180, etc.) in S101, and if the cancel instruction is not detected, in S129. return.

In S133, the control unit 140 changes the setting of the biometric information monitor 100 according to the selected setting file, and returns the process to S101.

When the contents of the setting file are reflected in the settings of the biometric information monitor 100 in S133, for example, when the settings of predetermined items such as alarm settings are changed, the authenticated user has the administrator authority in the control unit 140. Reflection can be executed only when it is confirmed that it has. Further, when the setting of a predetermined item is changed by reflecting the setting file, the control unit 140 may request the user authentication again.

As described above, according to the present embodiment, in the biometric information measuring device that can save the setting contents customized by the user as a reusable setting file, the authenticated user is selected from the saved setting files. The saved configuration file is automatically extracted. Therefore, even if a large number of setting files are stored in the biometric information measuring device shared by many users, the user can easily create the desired setting file simply by inputting the authentication information without being aware of it. Can be found.

For example, during measurement of biometric information of a patient who needs constant monitoring, such as a monitor device, the display of biometric information being measured may be hidden or medical practice may be interrupted due to calling or changing the setting file. It is preferable that the time to do this is short. On the other hand, since the reflection of the setting file may involve a setting change that affects the measurement and monitoring operation of biological information, it is preferable that only an authorized user can execute the setting file. In this embodiment, the user is authenticated by using the user-specific biometric information, gesture input, specific input pattern, and other unique information for authentication, which requires less input effort and is considered for security, like a monitoring device. It is possible to call and reflect an appropriate setting file even in a biometric information measuring device.

(Modification example)
In the above-described embodiment, when a call instruction for the setting screen is given, the user is first authenticated and the setting screen according to the user's authority is displayed. However, it is configured to display the setting screen with restrictions when the call instruction of the setting screen is given, and to confirm the user's authority by performing user authentication when the operation of the item for which the restriction is set is performed. May be good.

The operation during measurement of the biological information monitor 100 in this case will be described with reference to the flowchart shown in FIG. In FIG. 8, the same reference numbers are given to the steps of performing the same operation as in FIG. 6, and duplicate description will be omitted.

When it is determined in S103 that the operation on the touch display 170 or the operation unit 180 is a call instruction of the setting screen, the control unit 140 proceeds to the process in S141 and displays the setting screen. The setting screen displayed here has items for which restrictions are set, and may be the same as, for example, a setting screen for non-administrators.

In S143, the control unit 140 determines whether or not an operation for selecting an item for which a restriction has been set has been performed on the display setting screen, and if it is determined that the operation has been performed, the control unit 140 must be determined to have been performed in S145. If S115, each process proceeds.

In S145, the control unit 140 determines whether or not a limit is set for the selected item, and if it is determined that the limit is set, the control unit 140 goes to S105, and if it is not determined that the limit is set, the control unit 140 goes to S113. Proceed with processing.

In S105 and S107, the control unit 140 performs the authentication process in the same manner as in the above-described embodiment, and in S47, determines the authority of the authenticated user. The control unit 140 proceeds to S113 if it is determined that the authenticated user has the authority to set the restriction items, and to S115 if it is not determined to have the authority.
Since the processing after S113 is the same as that of the above-described embodiment, the description thereof will be omitted.

The same effect as that of the above-described embodiment can be obtained by this modification as well. Further, since the authentication process is not required for the setting items that do not require the confirmation of the authority, the user's trouble can be saved. In the flowchart of FIG. 8, it is described that the authentication process is executed every time the item for which the restriction is set is selected, but the authentication process may be omitted or the authority may be given for the second and subsequent times. The authentication process can be omitted within a certain period of time after confirmation.

(Other embodiments)
In the above-described embodiment, a configuration using a touch display as a display device has been described. Therefore, it was possible to perform touch operations of GUI (graphical user interface) such as buttons and keys included in the display screen. When the display device does not have the touch panel function, the same function can be realized by assigning the GUI included in the display screen to the hardware switches and buttons constituting the operation unit.

The present invention can also be realized as a program in which the processing according to the above-described embodiment is executed by one or more processors included in the biometric information measuring device. Therefore, such a program and a computer-readable recording medium on which the program is recorded also constitute the present invention. Further, the processing according to the above-described embodiment can also be performed using hardware (for example, ASIC, programmable logic, etc.).

100 ... Biological information monitor, 110 ... Input unit, 120 ... Preprocessing unit, 130 ... Buffer memory, 140 ... Control unit, 150 ... External I / F, 170 ... Touch display, 180 ... Operation unit

Claims (7)

A biometric information measuring device that measures the biometric information of a patient.
A storage means for storing the setting contents of the biometric information measuring device as a setting file in association with the user.
When there is an instruction to call the setting file, the user who has given the instruction is specified based on the result of user authentication, and among the setting files saved in the storage means, the user is saved in association with the specified user. setting either a screen for selecting is displayed on the display means of the file, and a control means for setting contents of the selected configuration file from the screen Ru is reflected in the biological information measuring device,
A biological information measuring device characterized by having. When the control means reflects the setting contents of the setting file selected from the screen on the biometric information measuring device, if the setting of a predetermined item is changed, the control means requests user authentication again. The biometric information measuring device according to claim 1. Further having a means for inputting user-specific information used for the user authentication,
The biometric information measuring device according to claim 1 or 2, wherein the user-specific information is either user-specific biometric information, a gesture registered in association with the user, or a specific input pattern. The biometric information measuring device according to any one of claims 1 to 3, wherein the method of user authentication is different between the first time and the second and subsequent times. The biometric information measuring device according to claim 4, wherein in the second and subsequent user authentications, the number of input items of user-specific information used for the user authentication is smaller than that in the first user authentication. It is a control method of a biological information measuring device that measures the biological information of a patient.
When there is an instruction to call up the setting contents of the biometric information measuring device saved in association with the user as a setting file, a step of identifying the user who has given the instruction based on the result of user authentication, and
A step of displaying a screen for selecting one of the saved setting files saved in association with the specified user on the display means, and a step of displaying the screen for selecting one of the saved setting files.
, The process of reflecting the setting contents of the setting file selected from the screen on the biometric information measuring device, and
A method for controlling a biometric information measuring device, which comprises. A program for causing a computer included in a biometric information measuring device to function as a control means for the biometric information measuring device according to any one of claims 1 to 5.

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