Nurse call system

Abstract

To change an image to display in a portable terminal of a nurse according to a type of a call signal sent from a nurse call child device.SOLUTION: The present invention includes: a chile device 2 for calling for a nurse; a portable terminal 9 for a nurse carrying the portable terminal 9 to respond to the call from a patient; a camera 6 for imaging a bed and a region around the bed; a controller 4 for controlling communication between apparatuses; and a history server 11 for storing history information including a treatment history of the patient. The child device 2 sends different types of call signals. The portable terminal 9 has a display unit 9a for displaying an image taken by the camera 6 or a history image of a history server 11, and has a function of an image control unit for receiving a call signal and displaying one of the taken image and the history image which is set in advance according to the type of a call on the display unit 9a.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a nurse call system, and more particularly to a nurse call system that, when receiving a call from a patient, displays a captured image of the patient together with a call notification on a mobile terminal carried by a nurse.

Background Art

[0002] A camera for imaging a patient is installed in a hospital room. When a call from a patient occurs, in addition to the nurse call master unit, a call notification is also carried out on a mobile terminal carried by a nurse, and further, a captured image of the calling patient is displayed so that the responding nurse can communicate while confirming the patient in the image. Such a nurse call system has become widespread (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described conventional nurse call system, since the calling patient can be confirmed in the image during the call, it is easy to grasp the situation and effective for smooth response. However, call signals include, in addition to calls from patients (nurse calls), staff calls from nurses during treatment, and further notifications such as abnormal notification signals from separately connected devices, and there are multiple types. In the case of a nurse call, it was beneficial to be able to confirm the current state of the patient in the image. However, depending on the type of call, an image showing past treatments or information on the treatment history may be more beneficial to the nurse than the current image of the patient.

[0005] For example, in the case of a staff call, since the current patient situation is grasped by the bedside nurse who made the staff call, the nurse who responds to the call often wants to check the previous state. Therefore, if the most recent treatment history is displayed from the current image of the patient, the responding nurse can obtain the information they want at the time of response, which is effective for the accurate treatment of the patient.

[0006] Therefore, in view of such problems, an object of the present invention is to provide a nurse call system that can change the image displayed on the portable terminal carried by a nurse according to the type of call signal transmitted from the nurse call sub-unit.

Means for Solving the Problems

[0007] In order to solve the above problems, the invention of claim 1 is a nurse call system including a nurse call sub-unit arranged on a bed for a patient to call a nurse, a portable terminal carried by the nurse to respond to a call from the patient, a camera for imaging the bed and its surroundings, and a control device for controlling the transmission of images and communication between devices. The system has a history server in which history information including the treatment history of the patient is stored. There are multiple types of call signals with different call types sent from the nurse call sub-unit. The portable terminal is provided with an image display unit for displaying the captured image of the camera or the history image of the history server, and further includes an image control unit for receiving the transmission of the call signal and displaying one of the captured image and the history image preset according to the call type on the image display unit. According to this configuration, even for a call from the nurse call sub-unit, the image displayed on the portable terminal can be changed according to the call type. Therefore, it becomes possible to display the image desired by the nurse on the portable terminal according to the call type, and it is easier for the responding nurse to proceed with the subsequent treatment.

[0008] The invention of claim 2 is characterized in that, in the configuration according to claim 1, the portable terminal is provided with a display operation unit for switching the image to be displayed on the image display unit between the captured image of the camera and the history image of the history server. According to this configuration, the image to be confirmed can be changed according to the situation of the calling patient, which is highly convenient.

[0009] The invention of claim 3 is a nurse call system including a nurse call sub-unit arranged on a bed for a patient to call a nurse, a portable terminal carried by the nurse to respond to a call from the patient, a camera for imaging the bed and its surroundings, a recording device for storing the captured image of the camera, and a control device for controlling the transmission of the image and the communication between devices. The system has a history server in which history information including the treatment history of the patient is stored. There are multiple types of call signals with different call types sent by the nurse call sub-unit. The portable terminal is provided with an image display unit for displaying any one of the captured image of the camera, the history image of the history server, and the recorded image of the recording device. Further, the portable terminal is provided with an image control unit for, upon receiving the transmission of the call signal, causing the image display unit to display a preset image among the captured image, the history image, and the recorded image according to the call type. According to this configuration, even for a call from the nurse call sub-unit, the image displayed on the portable terminal can be made different according to the call type. Therefore, it becomes possible to display on the portable terminal the image desired by the nurse according to the call type, and it is easier for the responding nurse to proceed with the subsequent treatment.

[0010] The invention of claim 4 is characterized in that, in the configuration according to claim 3, the portable terminal is provided with a display operation unit for switching the image to be displayed on the image display unit among the captured image of the camera, the history image of the history server, and the recorded image of the recording device. According to this configuration, the image to be confirmed can be changed according to the situation of the calling patient, which is highly convenient.

[0011] The invention of claim 5 is characterized in that, in the configuration according to any one of claims 1 to 4, the image control unit is built in the portable terminal. According to this configuration, by providing the image control unit in the portable terminal, it is not necessary to impose a burden on the control device or the like. Also, it can be implemented without changing the configuration of devices other than the portable terminal, and the cost can be reduced.

[0012] The invention according to claim 6 is configured as described in any one of claims 1 to 4, wherein the image control unit is a web server, the control device transmits a call signal to the mobile terminal and also transmits the call signal and the captured image of the camera to the web server, the web server that has received the call signal transmits a URL for displaying an image set according to the call type to the mobile terminal, and the mobile terminal acquires a display image based on the URL and displays it on the image display unit. According to this configuration, since the web server controls the image displayed on the mobile terminal, the operating loads on the mobile terminal and the control device do not increase, and the time from the call to the image display is shortened.

[0013] The invention according to claim 7 is configured as described in any one of claims 1 to 4, wherein the image control unit is built into a switch that manages calls to / from the mobile terminal, the control device transmits the call signal and the captured image of the camera to the mobile terminal, the switch that has received the call signal transmits a URL for displaying an image set according to the call type to the mobile terminal together with the call signal, and the mobile terminal acquires a display image based on the URL and displays it on the image display unit. According to this configuration, since the switch controls the image displayed on the mobile terminal, the operating loads on the mobile terminal and the control device do not increase, and the time from the call to the image display is shortened.

[0014] The invention according to claim 8 is configured as described in any one of claims 1 to 7, and has a nurse call master unit for a nurse to respond at the nurse station to a call from the nurse call slave unit. The nurse call master unit has a master unit display unit for displaying the captured image of the camera, the control device transmits the call signal and the captured image of the camera to the nurse call master unit, and the nurse call master unit notifies of the call upon receiving the call signal and displays the image of the camera on the master unit display unit. According to this configuration, there is no need to connect a history server or the like to the nurse call master unit, and the operating load on the control device can be reduced.

Advantages of the Invention

[0015] According to the present invention, even in the case of a call from a nurse call slave unit, the image displayed on the mobile terminal can be changed according to the call type. Therefore, it becomes possible to display on the mobile terminal an image desired by the nurse according to the call type, and it is easier for the responding nurse to proceed with subsequent treatment.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0017] Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a first form of the nurse call system. The nurse call system 1 includes a nurse call slave unit 2 (hereinafter simply referred to as "slave unit") installed for each bed for a patient to call a nurse, a corridor light 3 for notifying the occurrence of a call in front of the ward, a control device 4 for controlling communication between devices, a nurse call master unit 5 (hereinafter simply referred to as "master unit") installed at the nurse station for responding to calls from patients, a camera 6 for imaging the bed and its surroundings, a recording device 7 for recording the imaging image of the camera 6, a bedside monitor 8 as an external device that is installed near the bed as needed to obtain the patient's vital information or display patient-related information, a mobile terminal 9 carried by a nurse and capable of responding to calls from patients, a history server 11 for storing history information such as the treatment history of patients, and the like. Reference numeral 13 denotes a base station for communicating with the mobile terminal 9, 14 denotes a private branch exchange (PBX) for managing connection / switching of communication of the mobile terminal 9, and 16 denotes a LAN backbone disposed in the hospital.

[0018] The corridor light 3, the control device 4, the master unit 5, the camera 6, the recording device 7, the history server 11, and the switch 14 are connected to the LAN via the HUB 15. Further, the slave unit 2 is connected to the corridor light 3 via the transmission line L1, and the bedside monitor 8 is connected to the corridor light 3 via the transmission line L2. Note that "image" includes "video", and the image captured by the camera 6 includes moving images.

[0019] The slave unit 2 is composed of a plate-shaped slave unit 2b having a call grip button 2a operated by a patient and a staff call button 2c operated by a nurse for a call function in addition to a call function, and the call grip button 2a is connected to the plate-shaped slave unit 2b.

[0020] The master unit 5 includes a call unit composed of a handset 5a and a display unit 5b having an operation unit for performing various operations. The display unit 5b can display images such as the captured image of the camera 6.

[0021] FIG. 2 shows a block diagram of the control device 4. The control device 4 includes a patient-related information storage unit 41 in which patient-related information associating a patient with a bed number and the camera 6 is stored, a control device CPU 24 that controls communication between devices and controls the control device 4, a control device communication IF 43 for connecting to the LAN backbone 16, and the like.

[0022] The recording device 7 stores the patient image captured by the camera 6. The stored image is stored in association with a bed number, a patient name, and the like.

[0023] The bedside monitor 8 has a vital measurement function for measuring a pulse and blood pressure. When these numerical values indicate abnormal values, a notification signal for notifying an abnormality is sent as a call signal. The bedside monitor 8 that is connected to the common corridor light 3 with the slave unit 2 and sends out a call signal is configured as a part of the slave unit 2. Furthermore, the vital measurement may be performed not by the bedside monitor 8 but by another dedicated measuring device, and in any case, the notification signal is transmitted as a call signal.

[0024] As the mobile terminal 9, a so-called smartphone in which an operation unit and a display unit 9a are integrally configured is preferably used. An application that displays an image in response to the reception of a call signal is installed, and when the call signal is received, a predetermined image is displayed on the display unit 9a.

[0025] In the history server 11, the treatment details for the patient input by the nurse each time are recorded and stored in chronological order. The treatment details are input by the nurse.

[0026] The operation of the nurse call system configured as described above is as follows. However, the control in which a call from the patient (nurse call) is made by operating the slave unit 2, and the call signal is transmitted to the master unit 5 and the mobile terminal 9, the control in which a communication path is formed between the responding master unit 5 or mobile terminal 9 and the slave unit 2, and the control in which a call is made between the nurse and the patient are the same as those in the prior art, so the description is omitted here. Here, the description will focus on the control in which the image displayed on the mobile terminal 9 is changed according to the type of the call signal. In addition to the nurse call signal by operating the call grip button 2a and the staff call signal by operating the staff call button 2c as described above, the call signal includes a notification signal from an external device such as the bedside monitor 8.

[0027] First, the case where the mobile terminal 9 itself selects and controls the image to be displayed on the mobile terminal 9 will be described. In this configuration, the application installed in the mobile terminal 9 is provided with a setting storage unit in which images to be displayed are set for each call type, and a function as an image control unit that obtains the set images and performs display control. In the setting storage unit, the relationship between the call type and the display image is set and stored in advance. As an example, the case where the nurse operates the staff call button 2c of the slave unit 2 in a state where there is a recorded image or treatment history associated with the bed will be described. When the staff call button 2c is operated, the control device 4 transmits a staff call signal and an imaging image of the camera 6 that images the bed of the slave unit 2 that has been operated to the mobile terminal 9 and the master unit 5.

[0028] The staff call signal and the imaging image transmitted to the mobile terminal 9 are transmitted to the mobile terminal 9 via the switch 14 and the base station 13. When the mobile terminal 9 that has received the staff call signal recognizes that the call type is a staff call, it reads out from the setting storage unit provided in itself the image to be displayed among the imaging image of the camera 6, the recorded image of the patient associated with the bed of the staff call signal transmitter stored in the recording device 7, and the history image that is the treatment history of the patient.

[0029] If it is stored in the setting storage unit that the content of the history server 11 is to be displayed in the case of a staff call signal, a browsing signal is transmitted from the mobile terminal 9 to the history server 11. The browsing signal includes the bed information of the staff call signal transmitter. The history server 11 that has received this browsing signal transmits the latest one of the treatment histories of the corresponding bed from the treatment history to the mobile terminal 9 as an image. The mobile terminal 9 that has received this image displays the history image on the display unit 9a. In this way, the calling operation is performed and the image of the treatment history is displayed on the display unit 9a. In addition, the mobile terminal 9 performs control to transfer the imaging image of the camera 6 sent from the control device 4 to the recording device 7, and the recording device 7 records the imaging image of the camera 6.

[0030] On the other hand, the master unit 5 that has received the staff call signal and the imaging image of the camera 6 performs an operation to notify the occurrence of the call, and performs a call display and a display of the imaging image of the camera 6 on the display unit 5b provided in the master unit 5.

[0031] In addition, when there is no selected treatment history, the mobile terminal 9 that has received the staff call signal recognizes it at the stage of inquiring the history server 11 about the treatment history of the bed. The mobile terminal that has recognized that there is no history information displays the imaging image of the camera 6 received from the control device 4 or the recorded image read from the recording device 7 on the display unit 9a.

[0032] When the outgoing signal is a nurse call signal by a patient operation, the mobile terminal 9 recognizes that the call type is a nurse call. When the setting in the setting storage unit is to display the captured image of the camera 6, the captured image of the camera 6 is displayed on the display unit 9a, and the recording device 7 records the captured image of the camera 6.

[0033] Furthermore, when the outgoing signal is a notification signal for notifying an abnormal value sent from the bedside monitor 8 or the like, the mobile terminal 9 recognizes that it is a notification signal and reads from the setting storage unit which image should be displayed in the case of the notification signal. In the case of the notification signal, if it is set to display the recorded image, the latest image among the past recorded images of the patient in the bed is read from the recording device 7 and displayed.

[0034] FIG. 3 is an explanatory diagram of the display of the mobile terminal 9 thus displayed, showing a state in which the captured image of the camera 6 is displayed in response to a nurse call signal. As shown in FIG. 3, an image display section G1 and a call information display section G2 are provided on the display unit 9a. The selected image is displayed on the image display section G1, and a switching button G3 as a display operation section for switching the display image is also displayed. In addition, the call type, the ward number, and the patient's name are displayed on the call information display section G2.

[0035] The switching button G3 is a button for switching the image to be displayed on the mobile terminal 9 in a predetermined order among the captured image of the camera 6, the image stored in the recording device 7, and the history image of the history server 11. For example, when the patient history is initially displayed and the next display is set to the captured image of the camera 6, the captured image of the camera 6 is displayed by a single touch operation. Also, the past image of the patient is displayed by a double touch operation.

[0036] In this way, even for a call from the slave unit 2, since the image displayed on the mobile terminal 9 is changed according to the call type, it is possible to display the image desired by the nurse according to the call type on the mobile terminal, and it is easier for the responding nurse to proceed with subsequent treatment. In addition, by providing the mobile terminal 9 with an image control unit that controls the displayed image, it is possible to avoid imposing a burden on the control device 4 and other components, and it can be implemented without changing the configuration of devices other than the mobile terminal 9, thus reducing costs. Furthermore, since the displayed image can be switched by operating the switching button G3, the image to be confirmed can be changed according to the situation of the calling patient, which is highly convenient. In addition, since the image displayed on the master unit 5 upon receiving a call is the captured image of the camera 6 regardless of the call type, there is no need for the history server 11 and others to be connected to the master unit 5, and the operating load on the control device 4 can be reduced.

[0037] Figure 4 is a configuration diagram showing a second form of the nurse call system, and the second form will be described with reference to Figure 4. It is different from the form of Figure 1 in that it includes a Web server 12. The Web server 12 is provided with the function of an image control unit that obtains the set image and performs display control. Also, 12a indicates a setting storage unit that stores the relationship between the call type and the displayed image. Note that except for including the Web server 12, the configuration is the same as that of the nurse call system in Figure 1, so the description of the entire system is omitted. Hereinafter, the control in which the image displayed on the mobile terminal 9 is changed according to the type of call signal will be mainly described. Also, a predetermined application for receiving a call signal and displaying an image or the like is installed on the mobile terminal 9, but it does not have the function of the setting storage unit shown in the first form.

[0038] Taking the case where a nurse makes a staff call from the slave unit 2 to call another nurse as an example. When a staff call signal is sent from the slave unit 2, the control device 4 transmits the staff call signal and the captured image of the camera 6 that captures the bed of the staff call signal transmission source (captures the calling patient) to both the Web server 12 and the master unit 5. The operation of the master unit 5 that has received the staff call signal is the same as in the above form, so the description is omitted. Here, the operation of the Web server 12 that has received the staff call signal will be mainly described.

[0039] When the web server 12 recognizes that the call type of the call signal is a staff call, it reads out the image to be displayed on the mobile terminal 9 from the setting storage unit 12a. At this time, if it is pre-set in the setting storage unit 12a to display the content of the history server 11 for the staff call signal, the web server 12 makes an inquiry to the history server 11 about the existence of the treatment history of the relevant bed.

[0040] Upon receiving the inquiry, the history server 11 selects the latest treatment history if there is a treatment history, and transmits to the web server 12 the URL for displaying the history image on the mobile terminal 9. The web server 12 transfers the received URL to the mobile terminal 9. The mobile terminal 9 that has received this URL obtains the URL information from the history server 11 without going through the control device 4. The history image thus obtained is displayed on the display unit 9a. That is, the image of the treatment history of the patient associated with the calling bed is displayed. In this way, the mobile terminal 9 that has transmitted the call signal (staff call signal) from the control device 4 performs a call operation and displays a predetermined image. On the other hand, the web server 12 transfers the captured image of the camera 6 sent from the control device 4 to the recording device 7, and the recording device 7 records the image of the patient captured by the camera 6.

[0041] In addition, when there is no treatment history of the corresponding patient, either the captured image of the camera 6 transmitted from the control device 4 or the recorded image read from the recording device 7 is displayed on the display unit 9a of the mobile terminal 9. In this case, the URL for display is created by the web server 12 and transmitted to the mobile terminal 9.

[0042] In this way, by giving the web server 12 the function of the image control unit, the web server 12 performs the creation control of the image to be displayed, rather than the mobile terminal 9 or the control device 4 creating it. Therefore, the operation load is reduced and the time from the call to the image display is shortened.

[0043] FIG. 5 is a configuration diagram showing a third form of a nurse call system. The third form will be described with reference to FIG. 5. The configuration of the switch 14 is different from that in the form of FIG. 1 above, and a setting storage unit 14a is arranged in the switch 14 to provide the functions of an image control unit. In addition, since the configuration other than the switch 14 is the same as that of the nurse call system in FIG. 1, the description of the entire system is omitted, and the following will focus on the control in which the image displayed on the mobile terminal 9 is changed according to the type of call signal.

[0044] When a nurse makes a staff call from the slave unit 2, a staff call signal is transmitted to the control device 4. The control device 4 that has received the staff call signal transmits the staff call signal, the imaging image of the camera 6 installed near the bed, and the imaging image to the mobile terminal 9 and the master unit 5. Since the operation of the master unit 5 that has received the staff call signal from the control device 4 is the same as that in the form of FIG. 1 above, the description is omitted, and here the operation of the switch 14 that has received the staff call signal will be mainly described. When the switch 14 recognizes that the call type is a staff call, it reads out the image to be displayed from various images such as the imaging image of the camera 6 and the recorded image from the setting storage unit 14a.

[0045] At this time, if the setting information in the setting storage unit 14a is set to display the content of the history server 11 in the case of a staff call, the switch 14 inquires of the history server 11 whether there is a treatment history of the bed where the call signal was sent. If there is a treatment history, the history server 11 transmits a URL for displaying the latest one of the treatment histories to the switch 14.

[0046] In the switch 14 that has received this URL, the received URL is added to the staff call signal and transmitted to the mobile terminal 9. When the mobile terminal 9 receives the staff call signal with this URL added, it performs a call operation and obtains the image of the treatment history linked to the URL from the history server 11 and displays it on the display unit 9a. In addition, the mobile terminal 9 transfers the imaging image of the camera 6 sent from the control device 4 to the recording device 7, and the recording device 7 records the imaging image of the camera 6.

[0047] When there is no treatment history of the bed (patient) which is the call signal transmission source yet, the switch 14 creates a URL for displaying the captured image of the camera 6 received from the control device 4 or the recorded image read from the recording device 7 on the display unit 9a of the mobile terminal 9.

[0048] In this way, by giving the switch 14 the function of the image control unit, the control of the image to be displayed is all performed by the switch 14 except for the captured image of the camera 6. Therefore, no additional hardware is required, the operation load of the mobile terminal 9 can be reduced, and the time from the call to the image display can be shortened.

[0049] Moreover, in the above embodiment, the case where the image displayed on the mobile terminal 9 is any one of the captured image of the camera 6, the history image of the history server 11, and the recorded image of the recording device 7 according to the type of the call signal has been described. However, the selection of the recorded image may be omitted, and either the captured image of the camera 6 or the history image of the history server 11 may be displayed. Also, although the display images according to the call types of the call signals are unified in the system, it is also possible to set them for each mobile terminal 9, or the settings may be changed for each nurse. Furthermore, the settings may be made for each bed (each patient).

Explanation of Signs

[0050] 1 ·· Nurse call system, 2 ·· Nurse call sub-machine, 3 ·· Corridor light, 4 ·· Control device, 5 ·· Nurse call master machine, 5b ·· Display unit (master machine display unit), 6 ·· Camera, 7 ·· Recording device, 8 ·· Bedside monitor, 9 ·· Mobile terminal, 9a ·· Display unit (image display unit), 11 ·· History server, 12 ·· Web server, 12a ·· Setting storage unit, 14 ·· Switch, 14a ·· Setting storage unit, 16 ·· LAN trunk line, G3 ·· Switching button (display operation unit).

Claims

1. A nurse call system comprising a nurse call sub-unit placed on a bed for a patient to call a nurse, a mobile terminal carried by the nurse to respond to calls from the patient, a camera for imaging the bed and its surroundings, and a control device for controlling image transmission and communication between devices, having a history server in which history information including the treatment history of the patient is stored, wherein there are a plurality of types of call signals sent from the nurse call sub-unit with different call types, and the mobile terminal is provided with an image display unit for displaying the captured image of the camera or the history image of the history server, and further comprising an image control unit that, upon receiving the transmission of the call signal, causes one of the captured image and the history image, which is preset according to the call type, to be displayed on the image display unit.

2. The nurse call system according to claim 1, wherein the mobile terminal is provided with a display operation unit for switching the image to be displayed on the image display unit between the captured image of the camera and the history image of the history server.

3. A nurse call system comprising a nurse call sub-unit placed on a bed for a patient to call a nurse, a mobile terminal carried by the nurse to respond to calls from the patient, a camera for imaging the bed and its surroundings, a recording device for storing the captured image of the camera, and a control device for controlling image transmission and communication between devices, having a history server in which history information including the treatment history of the patient is stored, wherein there are a plurality of types of call signals sent by the nurse call sub-unit with different call types, and the mobile terminal is provided with an image display unit for displaying any one of the captured image of the camera, the history image of the history server, and the recorded image of the recording device, and further comprising an image control unit that, upon receiving the transmission of the call signal, causes a preset image among the captured image, the history image, and the recorded image to be displayed on the image display unit according to the call type.

4. The nurse call system according to claim 3, wherein the mobile terminal is provided with a display operation unit for switching the image to be displayed on the image display unit among the captured image of the camera, the history image of the history server, and the recorded image of the recording device.

5. The nurse call system according to claim 1 or 4, wherein the image control unit is built in the mobile terminal.

6. The image control unit is a Web server, The control device transmits the call signal to the mobile terminal and transmits the call signal and the captured image of the camera to the Web server. The Web server that has received the call signal transmits a URL for displaying an image set according to the call type to the mobile terminal. The nurse call system according to any one of claims 1 to 4, wherein the mobile terminal acquires a display image based on the URL and displays it on the image display unit.

7. The image control unit is built in a switch that manages calls / calls to the mobile terminal. The control device transmits the call signal and the captured image of the camera to the mobile terminal. The switch that has received the call signal transmits a URL for displaying an image set according to the call type to the mobile terminal together with the call signal. The nurse call system according to any one of claims 1 to 4, wherein the mobile terminal acquires a display image based on the URL and displays it on the image display unit.

8. There is a nurse call master unit for a nurse to respond at the nurse station to a call by the nurse call slave unit. The nurse call master unit has a master unit display unit for displaying the captured image of the camera, and the control device transmits the call signal and the captured image of the camera to the nurse call master unit. The nurse call system according to any one of claims 1 to 7, wherein the nurse call master unit performs a call notification upon receiving the call signal and displays the image of the camera on the master unit display unit.

Images