JP2022083371A - Biological information monitoring device, management device, and biological information monitoring system - Google Patents

Abstract

To efficiently transmit biological information required in wireless communication in sub-gigahertz bands.SOLUTION: A control unit 31 of a bedside terminal 30 acquires a biological signal of a patient and regularly transmits measured value data (first biological information) regarding the biological signal to a station server (external device) 10, by wireless communication in sub-gigahertz bands. The control unit 31 of the bedside terminal 30 also transmits measured waveform data (second biological information) with a larger data volume than the measured value data to the station server 10, in response to a predetermined transmission request.SELECTED DRAWING: Figure 1

Description

The present invention relates to a biological information monitoring device, a management device, and a biological information monitoring system.

Conventionally, in medical institutions such as hospitals, a system for continuously measuring biological information such as a patient's respiratory rate, respiratory waveform, heart rate, and heart rate waveform using a radio wave sensor and monitoring the presence or absence of an abnormality has been used. ing.

In this system, when an abnormality occurs in the patient's biological information, the abnormality may be notified to the terminal device carried by a nurse or the like, and as a method of notifying the abnormality, for example, from a higher-level server to the terminal device. There is known a method of transmitting biometric information corresponding to the alarm information and displaying the alarm information and the biometric information corresponding to the alarm information together on the display unit of the terminal device (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2020-36733

By the way, in the biometric information management system described in Patent Document 1, in each ward, the biometric information of the patient acquired by the bedside monitor and the telemeter transmitter is collected in the central monitor, for example. When it is attempted to constantly transmit waveform data having a large amount of data, there is a problem that biometric information cannot be transmitted smoothly because the amount of data becomes enormous. In particular, when biometric information is transmitted using sub-giga band wireless communication in which the amount of data transfer is limited, the above problem becomes remarkable.

The present invention has been made in view of the above problems, and an object of the present invention is to efficiently transmit biometric information required for wireless communication in the sub-giga band.

In order to solve the above problems, the biometric information monitoring device according to claim 1 is used.
A biometric information monitoring device that monitors the biometric information of patients.
The acquisition unit that acquires the biological signal of the patient,
A communication unit that periodically transmits the first biological information related to the biological signal to an external device by wireless communication in the sub-giga band.
Equipped with
In response to a predetermined transmission request, the communication unit transmits a second biological information having a larger amount of data than the first biological information regarding the biological signal to the external device.
It is characterized by that.

The invention according to claim 2 is the biometric information monitoring device according to claim 1.
The first biometric information is characterized in that it is derived from the second biometric information.

The invention according to claim 3 is the biometric information monitoring device according to claim 1 or 2.
The transmission request is made when a change in the patient's condition is detected based on the biological signal.
It is characterized by that.

The invention according to claim 4 is the biological information monitoring device according to any one of claims 1 to 3.
The acquisition unit can acquire a plurality of types of biological signals, and can acquire a plurality of types of biological signals.
Priority is preset for each of the plurality of types of biological signals.
When transmitting the second biological information, the communication unit preferentially transmits the second biological information related to the high-priority biological signal.
It is characterized by that.

The invention according to claim 5 is the biological information monitoring device according to any one of claims 1 to 4.
The transmission request is made periodically.
It is characterized by that.

The management device of the invention according to claim 6 is
A management device that manages patient biometric information.
It is provided with a communication unit that periodically receives the first biological information regarding the patient's biological signal from the biological information monitoring device by wireless communication in the sub-giga band.
The communication unit receives a second biological information having a larger amount of data than the first biological information regarding the biological signal from the biological information monitoring device, triggered by a predetermined transmission request.
It is characterized by that.

The invention according to claim 7 is the management device according to claim 6.
It is provided with a designation unit for designating the biometric information monitoring device for which the second biometric information is to be acquired based on the user operation.
The communication unit
The transmission request is transmitted to the biometric information monitoring device designated by the designated unit, and the transmission request is transmitted.
The second biometric information is received from the biometric information monitoring device triggered by the transmission request transmitted to the biometric information monitoring device.
It is characterized by that.

The invention according to claim 8 is the management device according to claim 6 or 7.
A display control unit for displaying the second biological information received by the communication unit on the display unit is provided.
It is characterized by that.

The invention according to claim 9 is the management device according to any one of claims 6 to 8.
The transmission request is made when the biological information monitoring device detects a change in the patient's condition based on the biological signal.
It is characterized by that.

The invention according to claim 10 is the management device according to claim 9.
The biological signal is composed of a plurality of types, and the priority is set in advance for each type.
The communication unit
When a change in the patient's body is detected based on the biological signal in the biological information monitoring device, alarm information is received from the biological information monitoring device in addition to the first biological information.
When the alarm information is simultaneously received from the plurality of biological information monitoring devices, the second biological information related to the high-priority biological signal is preferentially received.
It is characterized by that.

The invention according to claim 11 is the management device according to any one of claims 6 to 10.
Equipped with a second communication unit that communicates with mobile terminals
When the second communication unit receives the second biometric information, the second communication unit transmits the second biometric information to the mobile terminal.
It is characterized by that.

The biological information monitoring system of the invention according to claim 12 is
A biometric information monitoring device that monitors the patient's biometric information,
A management device that manages the patient's biological information,
It is a biological information monitoring system equipped with
The biometric information monitoring device is
The acquisition unit that acquires the biological signal of the patient,
A communication unit on the biometric information monitoring device side that periodically transmits the first biomedical information regarding the biomedical signal to the management device by wireless communication in the sub-giga band.
Equipped with
In response to a predetermined transmission request, the communication unit on the biometric information monitoring device side transmits the second biometric information having a larger amount of data than the first biomedical information regarding the biomedical signal to the management device.
It is characterized by that.

The invention according to claim 13 is the biological information monitoring system according to claim 12.
The transmission request is made when the biological information monitoring device detects a change in the patient's condition based on the biological signal.
It is characterized by that.

The invention according to claim 14 is the biological information monitoring system according to claim 13.
The biometric information monitoring device consists of a plurality of units.
When a change in the patient's condition is detected based on the biological signal, the communication unit on the biological information monitoring device side of each of the biological information monitoring devices transmits alarm information in addition to the first biological information.
The biological signal is composed of a plurality of types, and the priority is set in advance for each type.
The management device includes a management device-side communication unit that preferentially receives a second biological information related to the high-priority biological signal when the alarm information is simultaneously received from the plurality of biological information monitoring devices.
It is characterized by that.

The invention according to claim 15 is the biological information monitoring system according to claim 14.
The management device includes a designated unit for designating a desired biometric information monitoring device from among the plurality of biometric information monitoring devices based on a user operation.
The management device-side communication unit transmits the transmission request to the biometric information monitoring device designated by the designated unit.
It is characterized by that.

The invention according to claim 16 is the biological information monitoring system according to claim 15.
The designated unit determines the upper limit number of the biometric information monitoring devices that can be designated according to the communication status of the wireless communication in the sub-giga band.
It is characterized by that.

The invention according to claim 17 is the biological information monitoring system according to claim 15 or 16.
Further equipped with a mobile terminal capable of communicating with the management device,
When a desired biometric information monitoring device is designated from among the plurality of biometric information monitoring devices based on a user operation, the mobile terminal acquires the second biometric information for the biometric information monitoring device. The instruction is sent to the management device, and the instruction is sent to the management device.
When the management device-side communication unit receives the acquisition instruction from the mobile terminal, the management device-side communication unit transmits the transmission request to the target biometric information monitoring device.
It is characterized by that.

According to the present invention, it is possible to efficiently transmit biometric information required for wireless communication in the sub-giga band.

It is a system block diagram of a biological information monitoring system. It is a block diagram which shows the functional configuration of a station server. It is a block diagram which shows the functional structure of a bedside terminal. It is a flowchart which shows an example of the operation of the biological information monitoring system corresponding to the 1st acquisition case. This is an example of the monitoring screen displayed on the display of the station server. This is an example of the waveform display screen displayed on the display unit of the station server. It is a flowchart which shows an example of the operation of the biological information monitoring system corresponding to the 2nd acquisition case. No. 1 to No. It is a timing chart which shows the acquisition timing of the measurement waveform data at the time of duplication of alarms in 3 bedside terminals of 3. It is a flowchart which shows an example of the operation of the biological information monitoring system corresponding to the 3rd acquisition case.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

[Configuration of biometric information monitoring system]
FIG. 1 shows the system configuration of the biological information monitoring system 100.
As shown in FIG. 1, the biological information monitoring system 100 includes a station server (external device, management device) 10 provided in the nurse station and a bedside terminal (biological information monitoring device) provided in each bed in the hospital room. 30 and are configured. The biological information monitoring system 100 is used in a medical facility such as a hospital. The station server 10 and the bedside terminal 30 can communicate with each other by wireless communication. Wireless communication in a medical facility shall be in the sub-giga band (a frequency band slightly lower than 1 GHz, which generally refers to the 920 MHz band in Japan) in which the frequency used for communication does not interfere with medical equipment. The number of bedside terminals 30 is not particularly limited.

The station server 10 centrally manages the measurement data (biological information) of each patient collected by the bedside terminal 30. The display unit 13 of the station server 10 displays a monitoring screen (see FIG. 5) for monitoring biological information of a plurality of patients. Examples of biological information include respiratory rate, pulse rate, SpO ₂ and the like. At the nurse station, the station server 10 can grasp changes in the physical condition of each patient.

Further, an external HDD (Hard Disk Drive) 20, an UPS (Uninterruptible Power Supply) 21, and a printer 22 are connected to the station server 10.
The external HDD 20 stores data such as biological information of each patient managed by the station server 10.
The UPS 21 is a device that has a built-in device for storing electric power such as a secondary battery and can supply electric power with a predetermined output for a certain period of time even if the electric power supply from the outside is interrupted due to a power failure or the like.
The printer 22 prints measurement data on paper, and prints various measurement data and the like displayed on the display unit 13 of the station server 10.

The bedside terminal 30 is installed on the bedside of each patient, acquires patient biometric information from the pulse oximeter 41 and the respiratory sensor 42 connected to the device 30, and displays the measurement result. Further, the bedside terminal 30 reads the IC card 51 to acquire identification information of a medical worker, and acquires biometric information of a patient from an NFC (Near Field Communication) compatible measuring device 52 such as a thermometer. The bedside terminal 30 transmits the measurement data of the biometric information to the station server 10.

[Station server configuration]
FIG. 2 shows the functional configuration of the station server 10.
As shown in FIG. 2, the station server 10 includes a control unit 11, an operation unit 12, a display unit 13, a wireless communication unit 14, a storage unit 15, a communication unit 16, I / F (interface) units 17 to 19, and the like. Each part is connected by a bus.

The control unit 11 is composed of a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like, and comprehensively controls the processing operation of each unit of the station server 10. Specifically, the CPU reads out various processing programs stored in the storage unit 15 and develops them in the RAM, and performs various processing in cooperation with the programs.

The operation unit 12 is configured to include a keyboard equipped with cursor keys, character / number input keys, various function keys, and a pointing device such as a mouse, and controls operation signals input by key operations on the keyboard or mouse operations. Output to unit 11.

The display unit 13 is configured to include a monitor such as an LCD (Liquid Crystal Display), and displays various screens according to instructions of display signals input from the control unit 11.

The wireless communication unit 14 is a wireless interface for transmitting / receiving data to / from the bedside terminal 30 by wireless communication in the sub-giga band.
In the present embodiment, the station server 10 receives the measured value data (first biological information) of the breathing rate, the pulse rate, the SpO ₂ from each bedside terminal 30 via the wireless communication unit 14, and the time data. Patient ID data, device status (including device alarm) data, and bedside terminal ID data are received periodically (for example, once every 5 seconds).
Wireless communication is a time division multiple access (TDMA) and carrier sense multiple access so that the communication between the bedside terminal 30 and the station server 10 will not be interrupted due to a collision or the like. (Carrier Sense Multiple Access with Collision Avoidance: CSMA / CA) is used properly. In the time division multiple access, the monitoring data which is the first biometric information is received, and in the carrier sense multiple access, other than the monitoring data, that is, packets for synchronizing the settings of the bedside terminal and the station server are transmitted and received. By doing so, it is possible to improve the stability of communication and improve the responsiveness of monitoring data without mixing different types of packets.
For example, when monitoring data is transmitted / received by carrier sense multiplex connection, there is a high possibility that collisions will occur with each other when a large number of bedside terminals 30 exist, and there is a problem that each data is delayed or lost. It can occur. However, as in this embodiment, time division multiple access and carrier sense multiple access are used properly, and important communication such as monitoring data is relatively important other than monitoring data by communicating in the order determined by the time division multiple access. Stable communication is possible without interference with low-level data.
On the other hand, when communication time is allocated only to the monitoring data of the bedside terminal 30, when transmitting a packet for other purposes such as synchronizing setting changes such as a threshold between the bedside terminal 30 and the station server 10. There is a problem that monitoring data may not be sent due to packet collision, and proper monitoring may not be possible. Therefore, this can be solved by providing a time for sending packets other than the monitoring data in addition to the time for sending the monitoring data in the monitoring cycle.
As the data other than the monitoring data, there are data such as changing the threshold value when setting an alarm on the bedside terminal 30, and changing various settings from the station server 10 to the bedside terminal. Unlike monitoring data, these do not need to be transmitted and received at all times, and it is desirable to communicate in real time when the need for communication arises. In this embodiment, carrier sense multiplex connection is assigned to the communication of these data. There is.
Time-division multiple access and carrier-sense multiple access are assigned by dividing one communication section. In time-division multiple access, the time corresponding to the assumed number of bedside terminals 30 is set in advance, and each within this time. It is possible to collect monitoring data of the bedside terminal 30. On the other hand, the carrier sense multiple access is assigned the remaining interval allocated to the time division multiple access. Communication of data other than monitoring data does not need to be as frequent as monitoring data, so there is no high risk of data loss due to collision even if carrier sense multiple connections are used in the remaining sections.
To solve the above problem, for example
A biometric information monitoring device that monitors the biometric information of patients.
Equipped with a communication unit that sends data to a management device that manages patient biometric information
The communication unit transmits the monitoring data acquired by the biometric information monitoring device to the management device by time division multiple access during the first transmission period, and data other than the monitoring data by carrier sense multiple access during the second transmission period. To send,
It is preferable to use a biological information monitoring device characterized by this.
It is also a management device that manages patient biometric information.
Equipped with a communication unit that receives data from a biometric information monitoring device that monitors the patient's biometric information.
The communication unit receives monitoring data acquired by the biometric information monitoring device by time division multiple access during the first transmission period, and receives data other than the monitoring data by carrier sense multiple access during the second transmission period.
It is preferable to use a management device characterized by the above.

Here, when each of the above-mentioned respiratory rate, pulse rate, and SpO ₂ measurement value data is 2Byte, time data is 4Byte, patient ID data is 3Byte, device state data is 2Byte, and bedside terminal ID data is 1Byte, each The amount of data transferred from the bedside terminal 30 at one time is 16 bytes.
Therefore, for example, when the number of bedside terminals 30 is 64, the data transfer rate is 205 (16 [Byte] × 64 [units] ÷ 5 [seconds]) Bps (Byte per second).
As a result, when the measured waveform (for example, respiratory waveform) data (second biological information) is 2Byte, 20 Hz, the data transfer rate of this data is 40 Bps, so that the data transmission speed by wireless communication in the sub-giga band can be increased. Assuming that it is 250 Bps, the measured waveform data can be transferred in real time if it is for one bedside terminal 30.
For example, it is possible to communicate the measurement waveform of one bedside terminal 30 by carrier sense multiplex connection.

The storage unit 15 is composed of an HDD, a non-volatile semiconductor memory, or the like, and stores various data. For example, the storage unit 15 stores the measurement data of the biological information received from the bedside terminal 30 in association with the patient. Further, the storage unit 15 stores patient information of each patient corresponding to each bedside terminal 30. The patient information includes patient identification information (patient name, patient ID), medical history of the patient, precautions, matters to be sent, and the like. The patient information is stored in advance in the storage unit 15 by inputting it in advance or by acquiring the information of the electronic medical record from an external device. The information managed in the station server 10 may be stored in the storage unit 15 or may be stored in the external HDD 20.

The communication unit 16 is composed of a network interface or the like, and is a LAN (Local Area).
Data is transmitted and received to and from external devices connected via communication networks such as Network), WAN (Wide Area Network), and the Internet.

The I / F units 17 to 19 are interfaces for connecting to various devices. Here, the I / F units 17 to 19 are connected to the external HDD 20, UPS 21, and the printer 22, respectively.

[Bedside terminal configuration]
FIG. 3 shows the functional configuration of the bedside terminal 30.
As shown in FIG. 3, the bedside terminal 30 includes a control unit 31, an operation unit 32, a display unit 33, a timekeeping unit 34, a wireless communication unit 35, a storage unit 36, an I / F unit 37, a data input unit 38, and the like. Each part is connected by a bus.

The control unit 31 is composed of a CPU, RAM, and the like, and comprehensively controls the processing operation of each unit of the bedside terminal 30. Specifically, the CPU reads out various processing programs stored in the storage unit 36, develops them in the RAM, and performs various processing in cooperation with the programs.

The operation unit 32 includes various switches, various function buttons, and the like, and outputs these operation signals to the control unit 31. The various function buttons include buttons for inputting various treatment contents (sputum suction, body temperature measurement, etc.), getting out of bed (toilet, bathing, etc.), and the like.

The display unit 33 is configured to include an LCD or the like, and displays various screens according to instructions of display signals input from the control unit 31. For example, the display unit 33 displays a screen for displaying biological information (measured values, measured waveforms, etc.) acquired from the pulse oximeter 41 and the respiratory sensor 42.

The timekeeping unit 34 has a timekeeping circuit (RTC: Real Time Clock), and the current time and time is timed by this timekeeping circuit and output to the control unit 31.

The wireless communication unit 35 is a wireless interface for transmitting / receiving data to / from the station server 10 by wireless communication.

The storage unit 36 is composed of a non-volatile semiconductor memory or the like, and stores various processing programs, parameters, files, etc. necessary for executing the program. The storage unit 36 stores the biological information of the patient corresponding to the bedside terminal 30.

Further, the storage unit 36 stores patient identification information (patient name, patient ID) of the patient corresponding to the bedside terminal 30.

The I / F unit 37 is an interface for connecting to the pulse oximeter 41 and the respiration sensor 42, and receives the biological signal of the patient from the pulse oximeter 41 and the respiration sensor 42.

The data input unit 38 is composed of an NFC (Near Field Communication) reader. The data input unit 38 acquires the identification information of the medical worker from the IC card 51 possessed by the medical worker. Further, the data input unit 38 acquires the patient's biological information from the NFC-compatible measuring device 52. For example, the information acquired by the data input unit 38 is associated with the current date and time acquired from the timekeeping unit 34 and transmitted to the station server 10.

[Operation of biometric information monitoring system]
First, transmission / reception of measured value data such as respiratory rate, pulse rate, and SpO2, which are the first biological information, will be described.
The first biometric information signal obtained by a biometric sensor such as a breathing sensor or a pulse oximeter is transmitted from the bedside terminal 30 to the station server 10 by sub-giga band wireless communication. The first biometric information signal is sequentially transmitted from each bedside terminal 30 to the station server 10 in a predetermined order or an order designated by the station server 10. At this time, a period during which the first biometric information can be transmitted from all the bedside terminals 30 to the station server 10 is secured as a time division multiple access period. The remaining period of one communication period can be set as a carrier sense multiplex connection period, and can be a period for transmitting and receiving information other than the first biometric information signal.
Next, the operation of the biological information monitoring system 100 corresponding to each acquisition case of the measured waveform data will be described with reference to FIGS. 4 to 9.

[First acquisition case]
FIG. 4 shows an example of the operation of the biometric information monitoring system 100 corresponding to the first acquisition case, that is, the case where the station server 10 acquires desired measurement waveform data from the bedside terminal 30 designated based on the user operation. It is a flowchart.

As shown in FIG. 4, first, the control unit 11 of the station server 10 requests the measurement waveform data on the monitoring screen 131 (see FIG. 5) displayed on the display unit 13 (for example, Toshi Jonouchi). When the type of measured waveform (respiratory rate, pulse rate, SpO ₂ ) is selected after the click operation of the waveform icon WI in the column of (Mr. Ko) is performed, the target patient is selected via the wireless communication unit 14. A transmission request for selected measurement waveform data (for example, respiratory waveform data) is made to the bedside terminal 30 (step S1).

Next, the control unit 31 of the bedside terminal 30 that has received the measurement waveform data transmission request from the station server 10 transmits the target measurement waveform data to the station server 10 via the wireless communication unit 35 (step S2).
When transmitting the target measurement waveform data, the control unit 31 may transmit pulse waveform data or SpO ₂ waveform data in addition to the target measurement waveform data if there is a margin in the amount of communication. Further, as incidental information, a device alarm, a body movement flag, or the like may be transmitted.

Next, the control unit 11 of the station server 10 acquires (receives) the measured waveform data from the bedside terminal 30 that has requested the transmission of the measured waveform data via the wireless communication unit 14 (step S3). At this time, on the monitoring screen 131 (see FIG. 5), a patient corresponding to the bedside terminal 30 (for example, Toshiko Jonouchi) for the purpose of making it possible to grasp the bedside terminal 30 for which measurement waveform data is being acquired. The ID of the bedside terminal 30 (bedside terminal ID) and the name of the patient in the column of (Mr.) are displayed in an unusual mode (shaded mode in the figure).

Next, when the control unit 11 of the station server 10 clicks the column of the target patient for which the measurement waveform data has been acquired on the monitoring screen 131 (see FIG. 5) displayed on the display unit 13, in step S3. Based on the acquired measured waveform data, the waveform display screen is displayed on the display unit 13 (step S4). This completes the operation processing of the biological information monitoring system 100 corresponding to the first acquisition case.

FIG. 6A shows an example of the waveform display screen 132 displayed on the display unit 13. On the waveform display screen 132, the ID (bedside terminal ID) of the bedside terminal 30 that requested the transmission of the measured waveform data and the name of the target patient are displayed. Further, on the waveform display screen 132, the acquired measured waveform data (for example, respiratory waveform data) WD is displayed, and arrow buttons B1 and B2 for changing the display section of the measured waveform data are displayed. .. As described above, when the station server 10 acquires, for example, pulse waveform data in addition to the target measurement waveform data, as shown in FIG. 6B, the acquired measurement waveform data (for example, for example). , Respiratory waveform data) The pulse waveform data may be displayed on the waveform display screen 132 together with the WD.

[Second acquisition case]
FIG. 7 shows a second acquisition case, that is, a case where a measurement waveform data which is a derivation source of the measured value is acquired when a certain measured value derived in the bedside terminal 30 becomes an abnormal value and an alarm is generated. It is a flowchart which shows an example of the operation of the corresponding biological information monitoring system 100.
In the figure, it is a flowchart showing the relationship between the station server 10 and one bedside terminal 30, but in reality, the station server 10 has the flowchart between each bedside terminal 30. The operation shown in is performed.

As shown in FIG. 7, first, the control unit 31 of the bedside terminal 30 measures measurement waveforms such as a respiratory waveform, a pulse waveform, and a SpO ₂ waveform based on biological signals acquired from the pulse oximeter 41 and the respiratory sensor 42. (Second biological information) is generated (step S11).

Next, the control unit 31 of the bedside terminal 30 derives measured values (first biological information) such as respiratory rate, pulse rate, and SpO ₂ from the measured waveform generated in step S11 (step S12).

Next, the control unit 31 of the bedside terminal 30 determines whether or not the measured value derived in step S12 is an abnormal value (step S13). For example, when the respiratory rate is less than 10 times or exceeds 30 times, the control unit 31 determines that the respiratory rate is an abnormal value.

When it is determined in step S13 that the measured value (for example, respiratory rate) is an abnormal value (step S13; YES), the control unit 31 via the wireless communication unit 35, the measurement waveform from which the abnormal value is derived. Data (for example, respiratory waveform data) is transmitted to the station server 10 (step S14). Then, the bedside terminal 30 returns the process to step S11, and repeats the subsequent processes.
On the other hand, when it is determined in step S13 that the measured value is not an abnormal value (step S13; NO), the bedside terminal 30 returns the process to step S11 and repeats the subsequent processes.

Next, the control unit 11 of the station server 10 acquires (receives) the measured waveform data from the bedside terminal 30 via the wireless communication unit 14 (step S15). However, when the control unit 11 acquires (receives) the measured waveform data from the bedside terminal 30, if the limit of wireless communication in the sub-giga band is exceeded, the control unit 11 does not acquire the measured waveform data. In such a case, the measurement waveform is manually notified on the monitoring screen 131 that the acquisition of the measurement waveform data has been stopped, and the waveform icon WI in the column of the target patient for which the acquisition of the measurement waveform data has been stopped is clicked. You may want to be notified of a message prompting the user to retrieve the data.
This completes the operation processing of the biological information monitoring system 100 corresponding to the second acquisition case.

In this way, when a certain measured value derived from the bedside terminal 30 becomes an abnormal value and an alarm is generated, the station server 10 automatically outputs the measured waveform data from the bedside terminal 30 from which the measured value is derived. By acquiring the data, it is possible to save the trouble of requesting the transmission of the desired measured waveform data based on the user operation, as in the first acquisition case described above. As a result, when the measured waveform data of the patient in which the alarm is generated is required, the trouble of requesting the transmission of the measured waveform data based on the user operation is saved, so that the measured waveform data can be efficiently acquired. You will be able to.

Here, a method of acquiring measurement waveform data when alarms are duplicated in a plurality of bedside terminals 30 will be described.
FIG. 8 shows No. 1 to No. 3 is a timing chart showing the acquisition timing of measurement waveform data when alarms are duplicated in the three bedside terminals 30 of 3. As for the alarm, for example, it is assumed that the priority of the alarm related to SpO ₂ is the highest, the priority of the alarm related to the pulse rate is high, and the priority of the alarm related to the respiratory rate is the lowest. Further, regarding the three bedside terminals 30, the priority is given to the youngest of the device numbers (No. 1 to No. 3).

As shown in FIG. 8, No. 1 to No. When an alarm is generated at the same time (timing t1) in the three bedside terminals 30 of No. 3, the priority of the alarm regarding SpO ₂ is the highest, and No. Since the bedside terminal 30 of 1 has the highest priority, the station server 10 has a period during which the alarm is generated and a certain period (for example, 1 minute) after the alarm ends, that is, timing t1. -During timing t2, No. SpO2 waveform data is acquired from the bedside terminal 30 of ₁ .

And No. At the timing t2 at which the acquisition of SpO2 waveform data from the bedside terminal 30 of No. ₁ is completed, No. Since the alarm regarding the respiratory rate is continuously generated in the bedside terminal 30 of No. 2, in the station server 10, the No. 1 is set between timing t2 and timing t3. Respiratory waveform data is acquired from the bedside terminal 30 of 2. Here, the timing t3 is No. The timing at which the alarm regarding the pulse rate is generated at the bedside terminal 30 of No. 3 is shown. That is, No. If an alarm with a higher priority occurs when an alarm related to the respiratory rate is generated at the bedside terminal 30 of No. 2, the station server 10 sets No. 1 at that timing (timing t3). The acquisition of the respiratory waveform data from the bedside terminal 30 of 2 is completed.

Then, in the station server 10, between timing t3 and timing t4, No. The pulse waveform data is acquired from the bedside terminal 30 of 3. Here, the timing t4 is No. 1 in the first acquisition case described above. It shows the timing at which the transmission request of the desired measurement waveform data is made to the bedside terminal 30 of 1. That is, when the measurement waveform data is acquired from the bedside terminal 30 in the second acquisition case, the first acquisition case in another bedside terminal 30 (for example, the No. 1 bedside terminal 30). When the transmission request of the desired measurement waveform data is made by the station server 10, the station server 10 sets the number at the timing (timing t4). The acquisition of the pulse waveform data from the bedside terminal 30 of 3 is completed.

Then, in the station server 10, the timing t4 to No. The desired measurement waveform data is acquired from the bedside terminal 30 of 1.

[Third acquisition case]
FIG. 9 is a flowchart showing an example of the operation of the biological information monitoring system 100 corresponding to the third acquisition case, that is, the case where predetermined measurement waveform data is sequentially acquired from each bedside terminal 30 by rotation.
In the figure, it is a flowchart showing the relationship between the station server 10 and one bedside terminal 30, but in reality, the station server 10 has the flowchart between each bedside terminal 30. The operation shown in is performed.

As shown in FIG. 9, first, the control unit 11 of the station server 10 sequentially requests each bedside terminal 30 to transmit predetermined measurement waveform data via the wireless communication unit 14 (step S21).

Next, the control unit 31 of the bedside terminal 30 that has received the measurement waveform data transmission request from the station server 10 transmits the target measurement waveform data to the station server 10 via the wireless communication unit 35 (step S22).

Next, the control unit 11 of the station server 10 acquires (receives) the measured waveform data from the bedside terminal 30 that has requested the transmission of the measured waveform data via the wireless communication unit 14 (step S23). Then, the control unit 11 returns the process to step S21, and repeats the subsequent processes. Here, in the second acquisition case described above, while the control unit 11 is acquiring the measurement waveform data from the bedside terminal 30, that is, while the alarm is being generated at the bedside terminal 30, the third acquisition is performed. The acquisition of the measured waveform data in the acquisition case is interrupted. This completes the operation processing of the biological information monitoring system 100 corresponding to the third acquisition case.

As described above, the station server 10 sequentially acquires predetermined measurement waveform data from each bedside terminal 30 by rotation number in the third acquisition case, so that the respiratory waveform data and pulse waveform data can be obtained from each bedside terminal 30. Measurement waveform data such as SpO ₂ can be acquired periodically. As a result, the station server 10 can grasp the past trend (trend) of each patient based on the measured waveform data acquired periodically.

As described above, the control unit 31 of the bedside terminal 30 of the present embodiment acquires the biological signal of the patient, and periodically obtains the measured value data (first biological information) related to the biological signal by wireless communication in the sub-giga band. It is transmitted to the station server (external device) 10. Further, the control unit 31 of the bedside terminal 30 transmits measurement waveform data (second biological information) having a larger amount of data than the measured value data to the station server 10 in response to a predetermined transmission request.
Therefore, according to the bedside terminal 30, measured value data having a relatively small amount of data is periodically transmitted to the station server 10 by sub-giga band wireless communication, and in response to a predetermined transmission request, the measured value data is higher than the measured value data. By transmitting the measured waveform data having a large amount of data to the station server 10, the required biometric information can be efficiently transmitted from the bedside terminal 30 to the station server 10.

Further, the control unit 31 of the bedside terminal 30 of the present embodiment makes the above transmission request when a change in the patient's condition is detected based on the biological signal of the patient, and the above transmission request is made in response to the transmission request. The measured waveform data having a larger amount of data than the measured value data is transmitted to the station server 10.
Therefore, according to the bedside terminal 30, when a change in the physical condition of the patient is detected based on the biological signal of the patient, the bedside terminal by transmitting the measurement waveform data related to the biological signal to the station server 10. The required biological information can be efficiently transmitted from 30 to the station server 10.

Further, according to the control unit 31 of the bedside terminal 30 of the present embodiment, it is possible to acquire a plurality of types of biological signals, and when transmitting the measured waveform data, priority is given to the measured waveform data related to the high-priority biological signal. Therefore, the required biological information can be efficiently transmitted from the bedside terminal 30 to the station server 10.

Further, according to the control unit 31 of the bedside terminal 30 of the present embodiment, the measurement waveform data is transmitted to the station server 10 based on the transmission request made periodically, so that the measurement waveform data is periodically acquired by the station server 10. Based on the measured waveform data, it becomes possible to grasp the past trends (trends) of each patient.

Although the embodiment of the present invention has been described above, the description content in the embodiment is a preferable example of the present invention and is not limited thereto.

For example, in the above embodiment, when the measured waveform data such as the respiratory waveform data is transmitted from the bedside terminal 30 to the station server 10, the measured waveform data may be compressed and transmitted.

Further, in the above embodiment, on the monitoring screen 131 displayed on the display unit 13 of the station server 10, the waveform icon WI in the column of the target patient requesting the measurement waveform data is clicked, and the type of the measurement waveform ( By performing the selection operation of the breath rate, pulse rate, and SpO ₂ ), the bedside terminal 30 of the target patient is requested to transmit the selected measurement waveform data. Since there is a limit to the amount of data transfer, the number of bedside terminals 30 capable of requesting transmission of measurement waveform data at one time may be set to an upper limit. Further, the above upper limit may be appropriately changed according to the communication state of the sub-giga band wireless communication.

Further, in the above embodiment, when a certain measured value derived from the bedside terminal 30 becomes an abnormal value and an alarm is generated in the station server 10, the measured waveform data from which the measured value is derived is used as the bedside. The configuration is such that the measurement waveform data is acquired from the terminal 30, but for example, the measurement waveform data is acquired from the target bedside terminal 30 on the monitoring screen 131 while the measurement waveform data is acquired from the bedside terminal 30. May be notified.

Further, in the above embodiment, when the station server 10 acquires the measured waveform data from the bedside terminal 30, the measured waveform data is transferred from the station server 10 to a portable terminal (not shown) carried by a medical worker such as a nurse. You may send it. Further, in such a case, the patient information of the corresponding patient stored in the storage unit 15 of the station server 10 may also be transmitted to the above-mentioned mobile terminal. Further, when the station server 10 is linked with an electronic medical record system (not shown), medical information of the corresponding patient stored in the electronic medical record system may be transmitted to the above-mentioned mobile terminal. .. Further, the information recorded in the storage unit 15 of the station server 10 may be transmitted to the above-mentioned mobile terminal together with the operation of a doctor or the like.

Further, in the first acquisition case of the above embodiment, the case of acquiring the desired measurement waveform data from the bedside terminal 30 designated based on the user operation in the station server 10 has been described, but a medical worker such as a nurse has been described. It may be possible to give an instruction to acquire measurement waveform data from a portable terminal (not shown) carried by the user via the station server 10. Specifically, the display unit of the mobile terminal is configured to display a monitoring screen (not shown) similar to the monitoring screen 131 (see FIG. 5) described above or edited for the mobile terminal. Then, on the monitoring screen displayed on the display unit of the mobile terminal, the selection operation of the target patient requesting the measurement waveform data is performed, and the selection operation of the type of measurement waveform (respiratory rate, pulse rate, SpO ₂ ) is performed. If so, the mobile terminal transmits information regarding the above selection operation to the station server 10. When the station server 10 receives information regarding the above selection operation from the mobile terminal via the communication unit 16, the station server 10 is selected for the bedside terminal 30 of the target patient via the wireless communication unit 14 based on the information. A request for transmission of measurement waveform data (for example, respiratory waveform data) is made.
In the above embodiment, an example of properly using the time division multiple access and the carrier sense multiple access has been described, but the communication method is not limited to this, and other existing communication methods can be used.

In addition, the detailed configuration and detailed operation of each device constituting the biological information monitoring system can be appropriately changed without departing from the spirit of the present invention.

100 Biometric information monitoring system 10 Station server 11 Control unit 13 Display unit 14 Wireless communication unit 15 Storage unit 16 Communication unit 17 I / F unit 30 Bedside terminal 31 Control unit 32 Operation unit 33 Display unit 35 Wireless communication unit 36 Storage unit 37 I / F part 38 Data input part 41 Pulse oximeter 42 Breath sensor

Claims (17)

A biometric information monitoring device that monitors the biometric information of patients.
The acquisition unit that acquires the biological signal of the patient,
A communication unit that periodically transmits the first biological information related to the biological signal to an external device by wireless communication in the sub-giga band.
Equipped with
In response to a predetermined transmission request, the communication unit transmits a second biological information having a larger amount of data than the first biological information regarding the biological signal to the external device.
A biological information monitoring device characterized by this. The biometric information monitoring device according to claim 1, wherein the first biometric information is derived from the second biometric information. The transmission request is made when a change in the patient's condition is detected based on the biological signal.
The biometric information monitoring device according to claim 1 or 2. The acquisition unit can acquire a plurality of types of biological signals, and can acquire a plurality of types of biological signals.
Priority is preset for each of the plurality of types of biological signals.
When transmitting the second biological information, the communication unit preferentially transmits the second biological information related to the high-priority biological signal.
The biometric information monitoring device according to any one of claims 1 to 3. The transmission request is made periodically.
The biometric information monitoring device according to any one of claims 1 to 4. A management device that manages patient biometric information.
It is provided with a communication unit that periodically receives the first biological information regarding the patient's biological signal from the biological information monitoring device by wireless communication in the sub-giga band.
The communication unit receives a second biological information having a larger amount of data than the first biological information regarding the biological signal from the biological information monitoring device, triggered by a predetermined transmission request.
A management device characterized by that. It is provided with a designation unit for designating the biometric information monitoring device for which the second biometric information is to be acquired based on the user operation.
The communication unit
The transmission request is transmitted to the biometric information monitoring device designated by the designated unit, and the transmission request is transmitted.
The second biometric information is received from the biometric information monitoring device triggered by the transmission request transmitted to the biometric information monitoring device.
The management device according to claim 6. A display control unit for displaying the second biological information received by the communication unit on the display unit is provided.
The management device according to claim 6 or 7. The transmission request is made when the biological information monitoring device detects a change in the patient's condition based on the biological signal.
The management device according to any one of claims 6 to 8, wherein the management device is characterized by the above. The biological signal is composed of a plurality of types, and the priority is set in advance for each type.
The communication unit
When a change in the patient's body is detected based on the biological signal in the biological information monitoring device, alarm information is received from the biological information monitoring device in addition to the first biological information.
When the alarm information is simultaneously received from the plurality of biological information monitoring devices, the second biological information related to the high-priority biological signal is preferentially received.
The management device according to claim 9. Equipped with a second communication unit that communicates with mobile terminals
When the second communication unit receives the second biometric information, the second communication unit transmits the second biometric information to the mobile terminal.
The management device according to any one of claims 6 to 10. A biometric information monitoring device that monitors the patient's biometric information,
A management device that manages the patient's biological information,
It is a biological information monitoring system equipped with
The biometric information monitoring device is
The acquisition unit that acquires the biological signal of the patient,
A communication unit on the biometric information monitoring device side that periodically transmits the first biomedical information regarding the biomedical signal to the management device by wireless communication in the sub-giga band.
Equipped with
In response to a predetermined transmission request, the communication unit on the biometric information monitoring device side transmits the second biometric information having a larger amount of data than the first biomedical information regarding the biomedical signal to the management device.
A biometric information monitoring system characterized by this. The transmission request is made when the biological information monitoring device detects a change in the patient's condition based on the biological signal.
The biological information monitoring system according to claim 12. The biometric information monitoring device consists of a plurality of units.
When a change in the patient's condition is detected based on the biological signal, the communication unit on the biological information monitoring device side of each of the biological information monitoring devices transmits alarm information in addition to the first biological information.
The biological signal is composed of a plurality of types, and the priority is set in advance for each type.
The management device includes a management device-side communication unit that preferentially receives a second biological information related to the high-priority biological signal when the alarm information is simultaneously received from the plurality of biological information monitoring devices.
13. The biological information monitoring system according to claim 13. The management device includes a designated unit for designating a desired biometric information monitoring device from among the plurality of biometric information monitoring devices based on a user operation.
The management device-side communication unit transmits the transmission request to the biometric information monitoring device designated by the designated unit.
The biological information monitoring system according to claim 14. The designated unit determines the upper limit number of the biometric information monitoring devices that can be designated according to the communication status of the wireless communication in the sub-giga band.
The biometric information monitoring system according to claim 15. Further equipped with a mobile terminal capable of communicating with the management device,
When a desired biometric information monitoring device is designated from among the plurality of biometric information monitoring devices based on a user operation, the mobile terminal acquires the second biometric information for the biometric information monitoring device. The instruction is sent to the management device, and the instruction is sent to the management device.
When the management device-side communication unit receives the acquisition instruction from the mobile terminal, the management device-side communication unit transmits the transmission request to the target biometric information monitoring device.
The biometric information monitoring system according to claim 15 or 16.

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