JP7574339B2 - Notification System - Google Patents

Description

The present invention relates to a notification system.

Conventionally, there is known a technology for acquiring vital signs from a patient in a hospital bed, and outputting an alarm sound when the measured values of the vital signs deviate from a set range, posing a risk to the patient's body. The alarm sound is output from a nursing station or the like to call staff (nurses, care staff, etc.).

However, there are cases where the measurement value of the acquired biometric information suddenly rises (or falls) due to factors such as noise. In this case, the measurement value falls outside the set range, and an unnecessary alarm sound is output.

Therefore, in the technology described in Patent Document 1, in order to prevent unnecessary alarm sounds from being output, an alarm sound is output when the amount of time (continuous time) during which the measured value of a biological parameter (biological information) is outside a predetermined range (set range) exceeds a predetermined level (set time).

Patent No. 4553337

As mentioned above, if there is a risk to the patient's body, an alarm sound is output from a nursing station or other location to call staff (nurses, care staff, etc.). In this case, when the staff arrives near the patient, they give instructions (operations) to stop the alarm sound and respond to the patient.

However, in the technology described in Patent Document 1, an alarm sound is output each time the continuous time that the measured value of the vital sign is outside the set range exceeds the set time. In this case, the alarm sound is bothersome when the staff is attending to the patient, so it is necessary to give an instruction (operation) to stop the output of the alarm sound. This means that even though the staff is attending to the patient, it is necessary to perform the above operation every time the alarm sound is output, and not only the alarm sound but also the above operation is bothersome.

However, even though the alarm sound is annoying, the fact remains that if the measurement value is outside the set range while staff are caring for the patient, the risk to the patient's body remains unresolved.

In view of the above-mentioned problems, the object of the present invention is to provide an alarm system that can issue an alarm to call staff when there is a risk to the patient's body, and can issue an alarm to make staff aware that the risk to the patient's body has not yet been resolved while they are treating the patient.

The notification system of the present invention is an alarm system that monitors the state of a person being assisted under a set first condition in an alarm monitoring state and issues a notification, and includes a first notification unit mounted on a first device that outputs an alarm in an alarm notification state in which the state of the person being assisted deviates from the first condition, and a second notification unit mounted on a second device different from the first device that displays first information when the alarm is output, and is characterized in that, in the alarm notification state in which the alarm and the first information are output, if a caregiver instructs the first device to stop the alarm, the first notification unit stops outputting the alarm and the second notification unit continues to display the first information.

According to the present invention, it is possible to issue a notification (alarm, first warning display information) to call staff when there is a risk to the patient's body, and to issue a notification (first warning display information) to make staff aware that the risk to the patient's body has not yet been resolved while they are treating the patient.

1 is a diagram for explaining an overall patient condition display system 1 to which a notification device of the present invention is applied. FIG. 2 is a diagram for explaining a patient condition display device 10 of the patient condition display system 1 of FIG. 1. 3 is a diagram for explaining the functional configuration of a display terminal 1000 and a connection device 2000 of the patient condition display device 10 of FIG. 2. 1 shows an example of continuous biological information 114 stored in the storage unit 110 of the display terminal 1000 of FIG. 1 shows an example of measured biological information 116 stored in the storage unit 110 of the display terminal 1000 of FIG. 4 is a screen transition diagram (state transition diagram) showing screens displayed on the display unit 170 of the display terminal 1000 of FIG. 3. 4 is a flowchart showing the operation (main processing) of the display terminal 1000 in FIG. 3 . FIG. 8 is a diagram for explaining the setting process of FIG. 7 . 8 is a diagram for explaining a state set in the setting process, and is a flowchart showing the alarm process of FIG. 7 . 10 is a timing chart for explaining an example of the alarm process of FIG. 9 .

The best mode for carrying out the present invention will now be described with reference to the drawings. The following embodiment is an example of application of the notification device of the present invention, and the content of the invention is of course not limited to this embodiment.

[1. The entire system]
Fig. 1 is a diagram for explaining the whole of a patient condition display system 1 to which the notification device of the present invention is applied. As shown in Fig. 1, the patient condition display system 1 comprises a patient condition display device 10, which is the notification device of the present invention, and a condition detection device 20.

First, as shown in FIG. 1, a patient P lies on a mattress 5 placed on a bed 3. A state detection device 20 is provided on the bed 3.

The condition detection device 20 is a device capable of continuously acquiring biometric information of the patient P, and acquires values such as the weight, body movement, blood pressure, and blood glucose level of the patient P. As an example of the condition detection device 20, for example, as shown in FIG. 1, it may be provided between the bed 3 and the mattress 5, or a sensor may be provided on the patient P to detect the condition of the patient P. It may also be provided directly on the bed device (for example, by utilizing the load on an actuator). The condition detection device 20 is connected to the patient condition display device 10.

The patient status display device 10 is connected to a status detection device 20, a measurement device 60, and other devices via a network. In addition, by holding an authentication card 65 over the patient status display device 10, authentication processing (login processing) can be realized.

The other devices connected to the network include, for example, a server 30, an electronic medical record server 40, a terminal device 50, and a mobile terminal device 55.

Server 30 is a server that provides various services and may be connected to a LAN within a hospital or facility, or may be provided externally via the Internet.

The electronic medical record server 40 is a server that stores electronic medical record information related to patient P. It is usually connected to a network within a hospital or facility, but for example, an external cloud server may also be used.

The terminal device 50 is a terminal device for connection at a nurse's station or a management room, and makes it possible to grasp the status of the patient status display device 10 even when remote. In addition, the mobile terminal device 55 can be wirelessly connected to a LAN, for example, so that staff (nurses, care staff, etc.) can easily check the information on the patient status display device 10.

The patient status display device 10 will be described in detail with reference to FIG. 2. FIG. 2 is a diagram for explaining the patient status display device 10 of the patient status display system 1 of FIG. 1.

As shown in FIG. 2, the patient status display device 10 includes a display terminal 1000 and a connection device 2000. The display terminal 1000 is, for example, a tablet-type display terminal that displays various information and accepts input for various operations. The display terminal 1000 may be a dedicated terminal that constitutes the patient status display device 10, or may be realized by installing an application (program) on a general-purpose tablet terminal.

The connection device 2000 is a device for connecting the display terminal 1000 to various devices. In other words, it acts as a hub for various devices. For example, by connecting the connection device 2000 to the condition detection device 20 (Figure 1), it is possible to continuously acquire vital information of the patient P (Figure 1), and it is also possible to receive vital information from a measurement device 60 (e.g., a thermometer).

The connection device 2000 is also provided with an NFC (Near Field Communication) communication unit 220, and authentication processing (login processing) can also be realized by connecting the authentication card 65 to the NFC communication unit 220.

The connection device 2000 is also provided with a notification unit 260, which can, for example, notify the user when an error occurs. Furthermore, the connection device 2000 can also be connected to a server device or the like via a LAN (which may be a wired LAN or a wireless LAN).

[2. Functional configuration]
FIG. 3 is a diagram for explaining the functional configuration of the display terminal 1000 and the connection device 2000 of the patient condition display device 10 of FIG.

2.1 Display Terminal
First, a description will be given of the functional configuration of the display terminal 1000. As shown in Fig. 3, the display terminal 1000 includes a control unit 100, a storage unit 110, a device communication unit 150, an operation unit 160, a display unit 170, and a LAN communication unit 180.

The control unit 100 is a functional unit for controlling the entire display terminal 1000. The control unit 100 realizes various functions by reading and executing various computer programs (hereinafter referred to as programs) stored in the storage unit 110, and is configured, for example, by a CPU (Central Processing Unit) etc.

The storage unit 110 is a functional unit that stores various programs and various data required for the operation of the display terminal 1000. The storage unit 110 is configured, for example, by a semiconductor memory, a hard disk drive (HDD), etc.

Also, as shown in FIG. 3, biometric information 112 is stored in the memory unit 110.

The biometric information 112 includes continuous biometric information 114, which is biometric information continuously detected by the condition detection device 20 (Fig. 1), and measured biometric information 116 received from the measurement device 60 (Figs. 1 and 2) at any timing.

Figure 4 shows an example of the continuous biological information 114 stored in the storage unit 110 of the display terminal 1000 of Figure 3. In the storage unit 110, the measurement date and time (e.g., "2016/05/16"), pulse (e.g., "126"), systolic blood pressure (e.g., "159"), diastolic blood pressure (e.g., "99"), body temperature (e.g., "37.8"), and blood glucose level (e.g., "110") are stored as the continuous biological information 114 in association with each other as values detected by the condition detection device 20 (Figure 1). In other words, the continuous biological information 114 can obtain a predetermined measurement value at any time. The continuous biological information 114 may be provided by the condition detection device 20 (Figure 1), or a detection device may be provided in the bed 3 (Figure 1). Also, various sensors may be provided on the body of the patient P (Figure 1) to detect the continuous biological information.

The continuous biological information 114 can manage various types of acquired biological information together as continuous biological information. The measurement values of these biological information are detected for different items as needed (for example, if only the body movement detection sensor is used, weight, sleep state, and pulse rate are detected as continuous biological information).

Figure 5 shows an example of measured biological information 116 stored in the memory unit 110 of the display terminal 1000 of Figure 3. The measured biological information 116 is biological information received from an external measurement device such as a thermometer, blood pressure monitor, or body fat monitor. For example, the memory unit 110 stores, as measured biological information 116, a reception date and time (e.g., "20016/05/16"), a type of biological information (vital sign) (e.g., "body temperature"), and its measured value (e.g., "37.8") in association with each other.

As shown in FIG. 3, the memory unit 110 further stores individual electronic medical record data 120 and an alarm threshold table 122, and stores a main program 132, an alarm program 134, a patient status display program 136, and a vital sign display program 138 as programs. Here, the alarm threshold table 122 and the above programs are stored in the memory unit 110 of the display terminal 1000 in FIG. 3, but may also be stored in a memory unit of the connection device 2000, which will be described later.

Individual electronic medical record data 120 is stored as data of the electronic medical record of each individual patient. Information representing this individual medical record is collected as individual electronic medical record data 120 and stored in the electronic medical record server 40 (Figure 1). Note that, although this embodiment is described as being stored in the storage unit 110, data from the electronic medical record server 40 (Figure 1) may also be used directly. In this case, it is not necessary to store the individual electronic medical record data 120 in the storage unit 110.

The alarm threshold table 122 stores alarm thresholds as thresholds for various measurement values. If a measured (received) measurement value deviates from a predetermined range (if the measurement value exceeds an upper alarm threshold or is below a lower alarm threshold), an alert is issued or error processing is performed. This alarm threshold may be preset or may be set arbitrarily.

The control unit 100 can read out the various programs stored in the memory unit 110 to realize various functions. Specifically, the control unit 100 reads out and executes the main program 132 to realize the main function. The control unit 100 reads out and executes the alarm program 134 to realize the alarm function. The control unit 100 reads out and executes the patient status display program 136 to realize the patient status display function. The control unit 100 reads out and executes the bioinformation display program 138 to realize the bioinformation display function.

The device communication unit 150 is a functional unit for communicating with the device communication unit 250 described below. In this embodiment, for example, the device is connected and communication is performed via a Universal Serial Bus (USB), but other general-purpose connection methods or wireless connection (Bluetooth (registered trademark), wireless LAN (Local Area Network), etc.) may be used. Communication may also be performed by providing a dedicated connection interface.

The operation unit 160 is a functional unit that accepts operation input from the user, and may be, for example, software keys implemented by a touch panel, a keyboard, a mouse, etc. Voice input, etc. may also be used.

The display unit 170 is a functional unit that displays various information to the user and performs notification processing. For example, it is realized by a liquid crystal display or the like. It may also be realized by a touch panel in which the operation unit 160 and the display unit 170 are integrally formed.

The LAN communication unit 180 is an interface unit that can be connected to a LAN. It is configured with a NIC (Network Interface Controller) for connecting to Ethernet (registered trademark), etc. The LAN communication unit 180 may be provided in the connection device 2000. In this case, the data to be transmitted is first sent to the connection device 2000 via the device communication unit 150 (250) and then transmitted to the network.

2.2 Connection Device
Next, a description will be given of the functional configuration of the connection device 2000. As shown in Fig. 3, the connection device 2000 further includes a control unit 200, a storage unit 210, an interface unit 230, a wireless communication unit 240, and a device communication unit 250 in addition to the above-mentioned NFC communication unit 220 and notification unit 260.

The control unit 200 is a functional unit for controlling the entire connection device 2000. The control unit 200 realizes various functions by reading and executing various programs stored in the storage unit 210, and is configured, for example, by a CPU.

The storage unit 210 is a functional unit that stores various programs and data necessary for the operation of the connection device 2000. The storage unit 210 is configured, for example, by a semiconductor memory, a HDD, etc.

The NFC communication unit 220 is a functional unit for performing NFC communication with other devices or authentication cards. Authentication processing is performed by holding the authentication card 65 (FIGS. 1 and 2) over the connection device 2000. If the measurement device 60 (FIGS. 1 and 2) has an NFC communication function, biometric information can be received via the connection device 2000 by holding the measurement device 60 over the connection device 2000. The measurement device 60 may be, for example, a communication device such as a smartphone.

The interface unit 230 is a functional unit for communicating with other devices. For example, it is provided as a functional unit for connecting to the state detection device 20. In addition, if the connection device 2000 is connected to a LAN, it may have the function of a LAN communication unit.

The wireless communication unit 240 is a functional unit for wireless communication with other devices. For example, by using Bluetooth (registered trademark), it is possible to receive biological information from the measurement device 60. Other communication methods such as wireless USB, WiFi, and ZigBee (registered trademark) may also be used.

The device communication unit 250 is a functional unit for communication between the display terminal 1000 and the connection device 2000 via the device communication unit 150 described above. Note that, for convenience of explanation in this embodiment, the functional configuration of each communication unit is explained separately, but they may be configured as one. In other words, when all communication is performed by Bluetooth, the device communication unit 250, NFC communication unit 220, interface unit 230, and wireless communication unit 240 are configured as one functional unit.

The notification unit 260 is a functional unit that operates when the connection device 2000 executes notification processing. For example, if an error display is desired, the notification unit 260 notifies the user of this. Possible notification methods include sound, light, display, vibration, etc. The notification unit 260 includes a sound notification unit 262 (first notification unit) that notifies with sound (alarm), and a light notification unit 264 (second notification unit) that notifies with light. The light notification unit 264 may be configured to be normally invisible, and to light up or flash only when issuing a notification.

[3. Screen (state) transition diagram]
FIG. 6 is a screen transition diagram (state transition diagram) showing screens displayed on the display unit 170 of the display terminal 1000 of FIG.

First, when the system is started, it determines whether an alarm has occurred, that is, whether each measurement value exceeds the alarm threshold (or is below the alarm threshold). Then, if necessary, an alarm screen (P100) is displayed. This alarm screen allows the user to confirm that a problem has occurred, but the details of the error are not displayed until the user logs in. This makes it possible to prevent error details that should not be shown to patient P (Figure 1) or family members from being displayed.

The alarm screen is also displayed when the system is started, such as when the power is turned on, but it may be determined at any time whether an alarm has occurred. If an alarm has occurred, the system may be configured to transition to the alarm screen as an interrupt process.

Next, the patient status display screen (P102) is displayed as the main state. On this screen, the nameplate information, pictogram information, warning information, error status, etc. of patient P (Figure 1) are displayed. This makes it possible to display necessary information to medical staff such as nurses and doctors, caregivers, and family members providing care.

The patient condition display screen (P102) does not display detailed information because it can be seen by patient P (Figure 1), his/her family at the hospital, and third parties who come to visit. If necessary, an authentication process is performed and logging in is performed to switch to a login screen (P104). From the login screen, it is possible to transition to various screens. For example, it is possible to switch to a vital information display screen (P106) that displays vital information (each measured value), a graph display screen (P108) that can display the progress of the measured values, and a vital registration screen (P110) that registers the measured values in the electronic medical record.

It is also possible to switch to the alarm settings and history screen (P116), which sets the conditions that will trigger an alarm. On this alarm settings and history screen, not only can you set the alarm threshold, but you can also operate other warning information and the next thing to do (for example, medication instructions, etc.).

In this way, the patient condition display system 1 (Figure 1) makes it possible to display information about patient P (Figure 1) in a centralized manner, and by switching screens as necessary, it becomes possible to display appropriate information. In addition, by obtaining information from multiple measuring devices in a centralized manner and registering it in the electronic medical record, it becomes possible to manage information about patient P (Figure 1) in a centralized manner.

4. Processing Flow
Next, a process flow in the display terminal 1000 (FIG. 3) of the patient condition display device 10 (FIGS. 1 and 2) of the patient condition display system 1 (FIG. 1) will be described.

[4.1 Main Processing]
Fig. 7 is a flowchart showing the operation (main processing) of the display terminal 1000 in Fig. 3. The main processing is realized by the control unit 100 of the display terminal 1000 in Fig. 3 reading and executing the main program 132 stored in the storage unit 110.

First, it is determined whether an alarm has occurred (step S102). Specifically, it is determined whether the various measurement values deviate from a predetermined range (whether the various measurement values exceed the upper alarm threshold or are below the lower alarm threshold). If the various measurement values deviate from the predetermined range (if the various measurement values exceed the upper alarm threshold or are below the lower alarm threshold), an alarm has occurred and an alarm sound needs to be issued. If an alarm sound needs to be issued, alarm processing is executed (step S102; Yes -> step S104). Here, in the alarm processing, an alarm screen may be displayed on the display unit 170 (Fig. 3) as an interrupt process.

Whether or not the various measurement values are outside a specified range (whether or not the various measurement values exceed the upper alarm threshold, or whether or not the various measurement values are below the lower alarm threshold) varies depending on the type of biometric information. In addition, there are also cases where the judgment criteria is not a specified range, but rather a single alarm threshold (i.e., cases where it is judged only whether or not the measurement value exceeds the upper alarm threshold, or cases where it is judged only whether or not the measurement value is below the lower alarm threshold).

Next, the patient condition display process is executed (step S106). In the patient condition display process, the patient condition display screen (P102) (FIG. 6) is displayed on the display unit 170 (FIG. 3). If login authentication is not performed (or if login has failed), the process is repeated from step S102 (step S108; No → step S102).

If the login authentication is performed correctly (step S108; Yes), the login screen (P104) (Figure 6) is displayed on the display unit 170 (Figure 3) (step S110). That is, the screen displayed on the display unit 170 (Figure 3) switches from the patient condition display screen (P102) to the login screen (P104). The login screen (P104) is a screen on which the staff can select various processes.

Here, if "Display bioinformation" is selected as the staff process, the bioinformation display process is executed (step S112; Display bioinformation -> step S116). In the bioinformation display process, the bioinformation display screen (P106) (Figure 6) is displayed on the display unit 170 (Figure 3).

Also, when "Settings" is selected, the setting process is executed (step S112; Setting → step S118). In the setting process, the alarm setting and history screen (P116) (Figure 6) is displayed on the display unit 170 (Figure 3). The setting process includes setting the alarm thresholds and registering and updating patient information.

If logout is not performed, the logged-in state continues (step S114; No → step S110), and if logout is performed, the user is logged out and the process is repeated from step S102 (step S114; No → step S102).

4.2 Setting process
In the setting process, a condition for changing from an alarm monitoring state (described later) to an alarm notification state (described later), a notification method, and a condition for changing to the alarm monitoring state are set according to the type, type, and item of the biological information 112. Fig. 8 is a diagram for explaining the setting process of Fig. 7.

First, a case will be described in which the biometric information 112 is continuous biometric information 114, the measurement is "measurement", and the item is "breathing". The condition for changing from the alarm monitoring state (e.g., see step S202 in Figs. 9 and 10) to the alarm notification state (e.g., see step S206 in Figs. 9 and 10) is when the continuous time during which the measurement value deviates from the set range (continuous time during which the measurement value exceeds the upper alarm threshold, continuous time during which the measurement value is less than the lower alarm threshold) (e.g., see continuous time T1 in Fig. 10) is equal to or longer than the first set time (e.g., see first set time Tth1 in Fig. 10), and as a notification method at this time, an alarm sound output (e.g., see alarm sound AL in Fig. 10) or a warning display process (e.g., see warning display information W1 (flashing), warning display information W2 (lighting) in Fig. 10) is executed. In addition, the condition for entering the alarm monitoring state is when, after the alarm response is completed, the continuous time that each measurement value is within a set range (the continuous time that the measurement value is equal to or less than the upper alarm threshold, and the continuous time that the measurement value is above the lower alarm threshold) (for example, see the continuous time T2 in FIG. 10) is equal to or greater than a second set time (for example, see the second set time Tth2 in FIG. 10).

Next, a case will be described where the biometric information 112 is continuous biometric information 114, the measurement is "measurement", and the item is "pulse". The condition for changing from the alarm monitoring state (for example, see step S202 in Figs. 9 and 10) to the alarm notification state (for example, see step S206 in Figs. 9 and 10) is when the continuous time during which the measurement value deviates from the set range (continuous time during which the measurement value exceeds the upper alarm threshold, continuous time during which the measurement value is less than the lower alarm threshold) (for example, see continuous time T1 in Fig. 10) is equal to or longer than the first set time (for example, see first set time Tth1 in Fig. 10), and as a notification method at this time, an alarm sound output (for example, see alarm sound AL in Fig. 10) or a warning display process (for example, see warning display information W1 (flashing), warning display information W2 (lighting) in Fig. 10) is executed. Furthermore, the condition for entering the alarm monitoring state is when, after the alarm response is completed, the continuous time that each measurement value is within the set range (the continuous time that the measurement value is equal to or less than the upper alarm threshold, the continuous time that the measurement value exceeds the lower alarm threshold) (for example, see the continuous time T2 in FIG. 10) is equal to or greater than the second set time (for example, see the second set time Tth2 in FIG. 10). Here, the set ranges (upper alarm threshold, lower alarm threshold), first set time, second set time, etc. are different from those in the case of "breathing".

Next, a case will be described where the vital sign information 112 is continuous vital sign information 114, the measurement is "bed determination" based on the determination of bed 3 (Figure 1), and the item is "getting out of bed." The condition for changing from the alarm monitoring state to the alarm notification state is when bed 3 (Figure 1) determines that the patient has gotten out of bed in the bed-getting alarm setting state, and the notification method at this time is to output an alarm sound and to display a warning (e.g., warning display information (flashing)). The condition for changing to the alarm monitoring state is when bed 3 (Figure 1) determines that the patient is in bed after having been determined as getting out of bed.

Next, a case will be described where the vital sign information 112 is continuous vital sign information 114, the measurement is "bed judgement" based on the judgement of the bed 3 (Fig. 1), and the item is "sitting on the edge of the bed". The condition for changing from the alarm monitoring state to the alarm notification state is when the bed 3 (Fig. 1) judges the bed to be sitting on the edge of the bed in the edge of the bed setting state, and the notification method at this time is to output an alarm sound and to display a warning (for example, warning display information (flashing)). The condition for changing to the alarm monitoring state is when the bed 3 (Fig. 1) judges the bed to be in bed after being judged to be sitting on the edge of the bed.

Next, a case will be described where the vital sign information 112 is continuous vital sign information 114, the measurement is a "bed judgement" based on the judgement of the bed 3 (Fig. 1), and the item is "getting up". The condition for changing from the alarm monitoring state to the alarm notification state is when the bed 3 (Fig. 1) is judged to have gotten up in the state where the alarm is set for getting up, and as a notification method at this time, an alarm sound is output and a warning display process (for example, warning display information (flashing)) is executed. Also, the condition for changing to the alarm monitoring state is when the bed 3 (Fig. 1) is judged to have gotten up and then to have gotten into bed.

Next, we will explain the case where the vital sign 112 is measured vital sign 116, the measurement is "measurement", and the items are "blood pressure", "SpO2 (percutaneous arterial oxygen saturation)", "blood glucose", and "body temperature". The condition for changing from the alarm monitoring state to the alarm notification state is when various measurement values deviate from the set range when a staff member measures patient P (Figure 1) during rounds, and as a method of notification at this time, a warning display process is executed. At this time, the staff member stops executing the warning display process, so the condition for changing to the alarm monitoring state is not set.

Figure 9 is a diagram for explaining the state set in the setting process, and is a flowchart showing the alarm process in Figure 7. As shown in Figure 9, in the setting process, the procedure for executing the alarm process is as follows: if an alarm situation occurs during "alarm monitoring", the state transitions to "alarm occurring", and if the alarm situation is cleared, the state returns to "alarm monitoring". Also, if a staff member issues an instruction to stop alarm monitoring during "alarm monitoring", the state transitions to "alarm monitoring stopped". During "alarm monitoring", the state transitions to the alarm monitoring state (step S202) described below. During "alarm occurring", the state transitions to the alarm notification state (step S206), alarm response state (step S208), and alarm observation state (step S212) described below. During "alarm monitoring stopped", the state transitions to the alarm monitoring state (step S202) described below, because a staff member issues an instruction to stop alarm monitoring.

4.3 Alarm Processing
The alarm process needs to be performed based on the measured value (measurement value) even when the staff is not near the patient P (FIG. 1). Therefore, the alarm process will be described with reference to FIG. 9 for a case where the biological information 112 (FIG. 8) is the continuous biological information 114 (FIG. 8), the measurement is "measurement", and the item is "respiration" or "pulse". The alarm process is a process executed in step S104 in FIG. 7, and is realized by the control unit 100 of the display terminal 1000 in FIG. 3 reading and executing the alarm program 134 stored in the storage unit 110.

First, in the alarm monitoring state (step S202), the control unit 100 (FIG. 3) monitors whether the measurement value of "respiration" or "pulse" is outside the set range (whether the measurement value exceeds the upper alarm threshold or whether the measurement value is below the lower alarm threshold).

Now, in the alarm monitoring state (step S202), the measurement value of "respiration" or "pulse" does not deviate from the set range (the measurement value does not exceed the upper alarm threshold, or the measurement value is not below the lower alarm threshold). In this case, since an alarm situation has not occurred (step S204-No), the control unit 100 (Figure 3) executes step S202.

Now, in the alarm monitoring state (step S202), the measured value of "respiration" or "pulse" is outside the set range (the measured value exceeds the upper alarm threshold, or the measured value is below the lower alarm threshold). In this case, the control unit 100 (FIG. 3) needs to monitor whether an alarm condition occurs. Therefore, if the continuous time during which the measured value of "respiration" or "pulse" is outside the set range is equal to or longer than the first set time, an alarm condition has occurred (step S204-Yes), and the alarm processing transitions from the alarm monitoring state (step S202) to the alarm notification state (step S206).

In the alarm notification state (step S206), the control unit 100 in FIG. 3 controls the sound notification unit 262 of the notification unit 260 of the connection device 2000 to output an alarm sound, and controls the light notification unit 264 of the notification unit 260 of the connection device 2000 to output the first alarm display information. Here, the sound notification unit 262 in FIG. 3 may be in the display terminal 1000. Also, if the alarm program 134 in FIG. 3 is in the connection device 2000, the control unit 200 may control the sound notification unit 262.

In the alarm notification state (step S206), if the staff instructs the display terminal 1000 (or the connection device 2000) of the patient status display device 10 in FIG. 2 to stop the alarm, the control unit 100 (FIG. 3) controls the sound notification unit 262 (FIG. 3) to stop outputting the alarm sound. The alarm processing transitions from the alarm notification state (step S206) to the alarm response state (step S208). Here, in the alarm notification state (step S206), the alarm notification is also notified to the terminal device 50 (FIG. 1) and the mobile terminal device 55 (FIG. 1), and an alarm sound and vibration are generated in the terminal device 50 and the mobile terminal device 55. Even if the alarm stop is instructed by the terminal device 50 and the mobile terminal device 55, the control unit 100 may control the sound notification unit 262 to stop outputting the alarm sound.

In the alarm response state (step S208), the staff is responding to patient P (Figure 1). In this case, the optical alarm unit 264 (Figure 3) continues to output the first alarm display information.

In the alarm response state (step S208), when a staff member responds to patient P (FIG. 1) and performs an alarm response completion operation on the display terminal 1000 (or the connection device 2000) of the patient status display device 10 in FIG. 2, the alarm response state (step S208) is completed. In other words, the alarm response is completed. If, after the alarm response completion operation, a measurement value that was out of the set range is within the set range (a measurement value that exceeded the upper alarm threshold does not exceed the upper alarm threshold, or a measurement value that was below the lower alarm threshold is not below the lower alarm threshold), the alarm situation is resolved (step S210-Yes). In this case, the alarm processing transitions from the alarm response state (step S208) to the alarm monitoring state (step S202).

On the other hand, in the alarm response state (step S208), the staff member deals with patient P (Figure 1) and performs an alarm response completion operation on the display terminal 1000 (or the connection device 2000) of the patient status display device 10 in Figure 2, but the measurement value of "respiration" or "pulse" is still outside the set range (the measurement value exceeds the upper alarm threshold, or the measurement value is below the lower alarm threshold). In this case, the alarm situation has not been resolved (step S210-No), so the control unit 100 (Figure 3) needs to observe whether the alarm situation occurs again. Therefore, the alarm processing transitions to the alarm observation state after the alarm response completion operation in the alarm response state (step S208) (step S212).

In the alarm observation state (step S212), if a measurement value that was outside the set range falls within the set range (if a measurement value that exceeded the upper alarm threshold does not exceed the upper alarm threshold, or if a measurement value that was below the lower alarm threshold is not below the lower alarm threshold), the control unit 100 (Figure 3) must further monitor whether an alarm situation occurs. Therefore, the control unit 100 (Figure 3) controls the optical notification unit 264 (Figure 3) to output second alarm display information that is different from the first alarm display information.

Now, in the alarm observation state (step S212), if the continuous time during which the measured value of "respiration" or "pulse" does not deviate from the set range is equal to or longer than the second set time, an alarm situation has not occurred (step S214-Yes), so the control unit 100 (Figure 3) controls the optical notification unit 264 (Figure 3) to stop outputting the second alarm display information. The alarm processing transitions from the alarm observation state (step S212) to the alarm monitoring state (step S202).

On the other hand, if the continuous time during which the measured values of "respiration" or "pulse" do not deviate from the set range during the alarm observation state (step S212) is less than the second set time, an alarm condition may occur again (step S214-No).

Here, if the time since the alarm response completion operation has not elapsed a third set time that is longer than the second set time, i.e., if the time has not expired (step S216-No), the control unit 100 (Figure 3) executes step S212.

Alternatively, if the time since the alarm response completion operation has elapsed the third set time but the alarm processing has not transitioned from the alarm observation state (step S212) to the alarm monitoring state (step S202), i.e., if the time has expired (step S216-Yes), the alarm processing transitions from the alarm observation state (step S212) to the alarm notification state (step S206).

[5. Operational Example]
Next, an example of the operation of this embodiment will be described with reference to Fig. 10. Fig. 10 is a timing chart for explaining an example of the alarm process of Fig. 9.

First, it is monitored whether the measured value V of "respiration" or "pulse" falls outside the set range Rth (whether the measured value V exceeds the upper alarm threshold Vth1, or whether the measured value V is less than the lower alarm threshold Vth2) (step S202: alarm monitoring state).

Now, at time t1, the measured value V of "respiration" or "pulse" is outside the set range Rth. For example, the measured value V exceeds the upper alarm threshold Vth1. Furthermore, if, at time t2 after time t1, the continuous time T1 during which the measured value V of "respiration" or "pulse" is outside the set range Rth is equal to or longer than the first set time Tth1 as the first set time described above (T1≧Tth1), then an alarm condition has occurred (step S204-Yes).

At time t2, the sound notification unit 262 outputs an alarm sound AL. The light notification unit 264 outputs the first alarm display information W1. For example, the light notification unit 264 is a light emitting element such as an LED (Light Emitting Diode), and the LED is displayed by blinking as the first alarm display information W1 (Step S206: Alarm notification state)

If the staff instructs the alarm to be stopped at time t3 after time t2, the sound alarm unit 262 stops outputting the alarm sound. In this case, the light alarm unit 264 continues to output the first alarm display information W1. In other words, the light alarm unit 264 flashes. At this time, the staff responds to the patient P (Figure 1) (step S208: alarm response state).

At time t4, which is after time t3, the staff attends to patient P (Figure 1). Here, the staff attends to patient P (Figure 1) and performs an operation to complete the alarm response on the display terminal 1000 (or the connection device 2000) of the patient status display device 10 in Figure 2. In this case, the optical alarm unit 264 outputs second alarm display information W2, which is different from the first alarm display information W1 (blinking display). For example, if the optical alarm unit 264 is a light-emitting element such as an LED, the LED is displayed as lit rather than blinking as the second alarm display information W2 (step S212: alarm observation state).

At time t5 after time t4, the measurement value V, which had been outside the set range Rth, becomes within the set range Rth (the measurement value V, which had been exceeding the upper alarm threshold Vth1, does not exceed the upper alarm threshold Vth1). Even in this case, the optical alarm unit 264 continues to output the second alarm display information W2. In other words, the optical alarm unit 264 is lit.

At time t6 after time t5, the continuous time T2 during which the measured value V of "respiration" or "pulse" does not deviate from the set range Rth is equal to or longer than the second set time Tth2 (T2≦Tth2). In this case, since no alarm condition has occurred (step S214-Yes), the optical notification unit 264 stops the light display by stopping the output of the second alarm display information W2 (step S202: alarm monitoring state).

At time t7 after time t6, the measured value V of "respiration" or "pulse" falls outside the set range Rth. For example, the measured value V exceeds the upper alarm threshold Vth1. Furthermore, at time t8 after time t7, if the continuous time T3 during which the measured value V of "respiration" or "pulse" falls outside the set range Rth is equal to or longer than the first set time Tth1 (T3≧Tth1), an alarm condition has occurred (step S204-Yes).

At time t8, the sound notification unit 262 outputs an alarm sound AL. The light notification unit 264 outputs the first alarm display information W1 to cause it to flash (step S206: alarm notification state). As described above, when the staff instructs to stop the alarm, the alarm notification state transitions to the alarm response state.

As explained above, the alarm device of the present invention realizes the above-mentioned alarm processing (step S104 in Figure 7, Figures 9 and 10) by the patient status display device 10 (Figures 1 and 2) of the patient status display system 1 (Figure 1). In order to realize this alarm processing, the alarm device (patient status display device 10) of the present invention comprises a control unit 100 (FIG. 3) which monitors whether or not the measured value V (FIG. 10) deviates from a set range Rth (FIG. 10) in the alarm monitoring state (step S202 in FIGS. 9 and 10), a sound alarm unit 262 (FIGS. 3, 10) which outputs an alarm sound AL (FIG. 10) if the continuous time T1 (FIG. 10) during which the measured value V deviates from the set range Rth is equal to or longer than a first set time Tth1 (FIG. 10) (step S204-Yes in FIGS. 9 and 10), and an optical alarm unit 264 (FIGS. 3, 10) which outputs first alarm display information W1 (FIG. 10) when the alarm sound AL is output. In the alarm notification state (step S206 in FIGS. 9 and 10) where the alarm sound AL and the first alarm display information W1 are output, if the staff instructs to stop the alarm, the sound notification unit 262 stops outputting the alarm sound AL. After the alarm response completion operation, the light notification unit 264 outputs the second alarm display information W2 (FIG. 10) that is different from the first alarm display information W1.

The notification device (patient status display device 10) of the present invention also realizes the above-mentioned alarm processing (step S104 in FIG. 7, FIGS. 9 and 10) by the patient status display device 10 (FIGS. 1 and 2) of the patient status display system 1 (FIG. 1). In order to realize this alarm processing, in the alarm observation state (S210-No, S212 in FIGS. 9 and 10) in which the output of the first alarm display information W1 (FIG. 10) continues after the alarm response completion operation, even if the measurement value V (FIG. 10), which had deviated from the set range Rth (FIG. 10), falls within the set range Rth, the optical notification unit 264 (FIGS. 3 and 10) continues to output the second alarm display information W2.

The notification device (patient status display device 10) of the present invention realizes the above-mentioned alarm processing (step S104 in FIG. 7, FIG. 9, FIG. 10) by the patient status display device 10 (FIG. 1, 2) of the patient status display system 1 (FIG. 1). In order to realize the alarm processing, in the alarm observation state (S212 in FIG. 9, 10), if the continuous time T2 (FIG. 10) during which the measured value V (FIG. 10) does not deviate from the set range Rth (FIG. 10) is equal to or longer than the second set time Tth2 (FIG. 10) (S214-Yes in FIG. 9, 10), the optical notification unit 264 (FIG. 3, 10) stops outputting the second alarm display information W2. In the alarm monitoring state (S202 in FIG. 9, 10) after the output of the second alarm display information W2 is stopped, the control unit 100 (FIG. 3) monitors whether the measured value V deviates from the set range Rth.

The alarm device (patient status display device 10) of the present invention also realizes the above-mentioned alarm processing (step S104 in FIG. 7, FIGS. 9 and 10) by the patient status display device 10 (FIGS. 1 and 2) of the patient status display system 1 (FIG. 1). In order to realize the alarm processing, if the alarm observation state (S212 in FIG. 9 and 10) has not been changed to the alarm monitoring state (S202 in FIG. 9 and 10) even after the third set time, which is longer than the second set time Tth2 (FIG. 10), has elapsed since the alarm response completion operation, the sound alarm unit 262 (FIGS. 3 and 10) outputs an alarm sound AL (FIGS. 10), and the light alarm unit 264 (FIGS. 3 and 10) outputs the first alarm display information W1 (FIG. 10).

In this way, the notification device of the present invention (patient status display device 10) can issue notifications (alarm sound AL, first alarm display information W1) to call staff when there is a risk to the patient's body, and notifications (first alarm display information W1 or second alarm display information W2) to make staff aware that the risk to the patient's body has not yet been resolved while they are treating patient P.

[6. Modifications]
Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and designs and the like within the scope of the claims are also included in the scope of the invention. For example, the notification device of the present invention realizes the above-mentioned alarm processing (step S104 in FIG. 7, FIGS. 9 and 10) by the patient condition display device 10 (FIG. 1), but if the same function is required away from the bed 3 (FIG. 1), it may be realized by the terminal device 50 (FIG. 1) or the mobile terminal device 55 (FIG. 1).

In the embodiments, the programs that run on each device are programs that control the CPU and the like (programs that make the computer function) to realize the functions of the above-mentioned embodiments. Information handled by these devices is temporarily stored in a temporary storage device (for example, RAM (Random Access Memory)) during processing, and is then stored in various ROM (Read Only Memory) or HDD storage devices, and is read, modified, and written by the CPU as necessary.

The recording medium for storing the program may be any of semiconductor media (e.g., ROM, non-volatile memory cards, etc.), optical recording media, magneto-optical recording media (e.g., DVD (Digital Versatile Disc), MO (Magneto Optical Disc), CD (Compact Disc), BD, etc.), and magnetic recording media (e.g., magnetic tape, flexible disk, etc.). In addition, not only are the functions of the above-mentioned embodiments realized by executing the loaded program, but the functions of the present invention may also be realized by processing in cooperation with an operating system or other application programs, etc., based on the instructions of the program.

When distributing the program on the market, the program can be stored on a portable recording medium and distributed, or transferred to a server computer connected via a network such as the Internet. In this case, the server's storage device is of course included in the present invention.

In addition, some or all of the devices in the above-mentioned embodiments may be realized as LSI (Large Scale Integration), which is typically an integrated circuit. Each functional block of each device may be individually chipped, or some or all of them may be integrated into a chip. The integrated circuit method is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Furthermore, if an integrated circuit technology that can replace LSI appears due to advances in semiconductor technology, it is of course possible to use an integrated circuit based on that technology.

1: Status display system 3: Bed 5: Mattress 10: Patient status display device 1000: Display terminal 100: Control unit 110: Storage unit 112: Biological information
114: Continuous biometric information
[0043] 116: Measured biological information 120: Individual electronic medical record data 122: Alarm threshold table 132: Main program 134: Alarm program 136: Patient condition display program 138: Biological information display program 150: Device communication unit 160: Operation unit 170: Display unit 180: Communication unit 2000: Connection device 200: Control unit 210: Storage unit 220: Communication unit 230: Interface unit 240: Wireless communication unit 250: Device communication unit 260: Notification unit 262: Sound notification unit 264: Light notification unit 20: Condition detection device 30: Server 40: Electronic medical record server 50: Terminal device 55: Portable terminal device 60: Measuring device 65: Authentication card

Claims (2)

A notification system including a control unit and a notification unit, the system monitoring whether a measurement value is out of a set range in an alarm monitoring state and notifying the notification unit,
the notification system is capable of selecting and setting a condition for transitioning from the alarm monitoring state to the alarm notification state from a plurality of conditions;
The control unit is
In an alarm monitoring state, a state of a person being assisted on the bed is determined;
When the condition that the person being assisted has left the bed is set as one of the plurality of conditions, when it is determined that the state of the person being assisted has changed from a state in which the person is in the bed to a state in which the person has left the bed or is in a sitting position on the edge of the bed, the device transitions to an alarm notification state in which an alarm is notified from the notification unit,
After transitioning to the alarm notification state, when it is determined that the state of the person being assisted is in the bed, transitioning again to the alarm monitoring state,
The notification system can set a condition for transitioning from the alarm monitoring state to an alarm notification state after a staff member logs in and authenticates the patient from the patient status display screen for the patient being assisted,
When a condition for transitioning from the alarm monitoring state to the alarm notification state is met without login authentication of the staff from the patient state display screen for the person being assisted, the notification unit issues a notification ,
The notification unit is
A first notification unit mounted on a first device that outputs the alarm;
a second notification unit that outputs first display information when the alarm is output and is mounted on a second device different from the first device;
having
The control unit is
In the alarm notification state in which the alarm and the first display information are output, when the staff member instructs the first device to stop the alarm, the first notification unit stops outputting the alarm,
After an alarm response completion operation is performed on the second device, the second notification unit outputs second display information different from the first display information.
Notification system. A notification system including a control unit and a notification unit, the system monitoring whether a measurement value is out of a set range in an alarm monitoring state and notifying the notification unit,
the notification system is capable of selecting and setting a condition for transitioning from the alarm monitoring state to the alarm notification state from a plurality of conditions;
The control unit is
In an alarm monitoring state, a state of a person being assisted on the bed is determined;
when it is determined that the state of the person being assisted has changed from a state in which the person is lying on the bed to a state in which the person is sitting up on the bed, among the plurality of conditions, the state is transitioned to an alarm notification state in which an alarm is notified from the notification unit,
When it is determined that the state of the person being assisted has become a state of lying on the bed after transitioning to the alarm notification state, the notification system transitions again to the alarm monitoring state, and the notification system can set a condition for transitioning from the alarm monitoring state to the alarm notification state after a staff member has logged in and authenticated the patient from a patient status display screen for the person being assisted,
When a condition for transitioning from the alarm monitoring state to the alarm notification state is met without login authentication of the staff from the patient state display screen for the person being assisted, the notification unit issues a notification .
The notification unit is
A first notification unit mounted on a first device that outputs the alarm;
a second notification unit that outputs first display information when the alarm is output and is mounted on a second device different from the first device;
having
The control unit is
In the alarm notification state in which the alarm and the first display information are output, when the staff member instructs the first device to stop the alarm, the first notification unit stops outputting the alarm,
After an alarm response completion operation is performed on the second device, the second notification unit outputs second display information different from the first display information.
Notification system.

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