JP2016158719A - Biological information monitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological information monitor that enables a medical worker to go quickly to a patient even if the patient is at a place other than a registered place, when the state of the patient abruptly changes.SOLUTION: An alarm search part 110 detects existence of a telemeter transmitter transmitting biological information to be determined to be alarmed or not in a reception area in such a way that a radio reception part 102 sequentially searches a plurality of channels and an alarm detection part 103 performs an alarm detection upon the biological information of a channel received by the radio reception part 102. When the alarm search part 110 detects an alarm, a transmission part 104 transmits to a central monitor that the alarm has been detected and information allowing for specifying the installation site of its own device.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a biological information monitor capable of receiving a signal from a medical telemeter transmitter.

  Medical telemeter systems must be able to monitor radiological information signals such as electrocardiograms remotely using radio waves, so they must be used as a tool to help improve medical services and reduce the burden on healthcare professionals. Being present. Such a medical telemeter system is disclosed in Patent Document 1, for example.

  A medical telemeter system generally includes a sensor, a telemeter transmitter, and a biological information monitor that receives a signal from the telemeter transmitter. Here, there are sensors and transmitters that are integrated and those that are separate. In this specification, a sensor and a transmitter integrated with each other and a sensor and a transmitter separated from each other will be referred to as a telemeter transmitter.

  In recent years, portable telemeter transmitters have become widespread. The portable telemeter transmitter is small and light enough to be worn on the patient's body, and is convenient because it can acquire biological information even when the patient leaves the bed. The telemeter transmitter acquires biological information such as an electrocardiogram waveform, a respiratory waveform, a pulse waveform, blood pressure, body temperature, and oxygen saturation, and transmits this biological information wirelessly.

  The biological information wirelessly transmitted from the telemeter transmitter is received by, for example, a biological information monitor provided in the nurse station, that is, a central monitor, and thereby the biological information of each patient is monitored by the central monitor. In this central monitor, the reception frequency corresponding to the transmission channel of each telemeter transmitter is registered. Further, in this central monitor, the name of the patient wearing each telemeter transmitter and the physical bed position are registered in association with each telemeter transmitter. As a result, the central monitor can identify each patient and monitor the biological information of each patient.

  Incidentally, the central monitor of the nurse station receives the biological information wirelessly transmitted from the telemeter transmitter via, for example, an antenna system arranged on the back of the ceiling in the hospital. In some cases, the biological information wirelessly transmitted from the telemeter transmitter is once received by the bedside monitor, and the biological information is input to the central monitor via the bedside monitor.

JP 2005-177342 A

  By the way, when a patient's condition suddenly changes and an alarm is output, a medical worker who looks at the central monitor of the nurse station tries to take an action on the patient's bed. This is based on the assumption that the patient is in bed.

  However, when the patient is not present at the registration location, it can be seen that the patient is within a certain range where radio waves can reach, but the destination other than the registration location is unknown, and measures are delayed. Main destinations include toilets, common rooms, meeting rooms, and corridors.

  The present invention has been made in consideration of the above points, and when a patient's condition suddenly changes, even if the patient is in a place other than the registered place, the medical staff can rush to the patient's place. Provide a biological information monitor.

One aspect of the biological information monitor of the present invention is:
A channel search by a radio reception unit, an alarm search unit for performing alarm detection on biological information of the channel received by the radio reception unit;
When an alarm is detected by the alarm search unit, a transmission unit that transmits information that can be used to identify an installation location of the device and that the alarm is detected to an external central monitor that is communicably connected;
It comprises.

  According to the present invention, when a patient's condition suddenly changes, even if the patient is in a place other than the registered place, the medical staff can express to the patient's place.

The figure which shows the example of application of the biometric information monitor of this invention The block diagram which shows the structure of the biological information monitor of embodiment Flow chart for explaining the operation of the biological information monitor The figure which shows the example which applied this invention to the nurse call system

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing an application example of the biological information monitor of the present invention. In the example of FIG. 1, the biological information monitor 100 (100-1, 100-2) of the present invention is arranged in a toilet and a common room.

  A central monitor 10 is provided in the nurse station, and the central monitor 10 receives biological information of each patient wirelessly transmitted from a telemeter transmitter attached to each patient. In FIG. 1, a square figure attached to a symbol representing a person represents a telemeter transmitter. As can be seen, each patient is equipped with a telemeter transmitter. In the central monitor 10, the patient name and physical bed position of each patient wearing the telemeter transmitter are registered in advance in association with each telemeter transmitter. Thereby, the medical staff using the central monitor 10 can identify each patient and view the biological information of each patient, and when the patient's condition changes suddenly and an alarm is output, It is possible to take measures by rushing to the registration place (bed, etc.).

  In the figure, a dotted line AR1 indicates a receivable area by the central monitor 10, and the central monitor 10 transmits a telemeter existing in the receivable area AR1, for example, via an antenna system provided on the back of the ceiling in the hospital. Biological information from the machine can be received wirelessly. In other words, biological information from a telemeter transmitter outside the receivable area AR1 cannot be wirelessly received.

  In the biological information monitor 100-1, almost the entire area in the toilet is set as the receivable area AR2. In the biological information monitor 100-2, almost the entire area in the conversation room is set as the receivable area AR3. It is preferable that the receivable areas AR2 and AR3 fall within the range of the toilet and the common room, respectively. For this reason, the biological information monitors 100-1 and 100-2 can manually set the reception sensitivity, that is, the receivable area. Thereby, the reception sensitivity can be set according to the size of the room to be installed. When an external antenna is used, the receivable area can be selected depending on the installation mode of the antenna. In practice, in the biological information monitor 100-1 in which almost the entire area in the toilet is set as the receivable area AR2, the apparatus main body is provided in the corridor and the external antenna is provided in the toilet.

  The biological information monitors 100-1 and 100-2 wirelessly receive biological information from telemeter transmitters existing in the receivable areas AR2 and AR3, and perform alarm determination on the biological information. When the biological information monitors 100-1 and 100-2 obtain a determination result indicating that an alarm is necessary, the biological information monitors 100-1 and 100-2 output an alarm from the display unit and the audio output unit, and the central monitor 10 has a LAN (Local Area Network) or the like. It is designed to notify that an alarm has been detected. At this time, the biological information monitors 100-1 and 100-2 also transmit information to the central monitor 10 that can identify the installation location of the own device.

  As described above, the biological information monitor 100 (100-1, 100-2) of the present embodiment notifies the nurse station that there is a patient whose condition has suddenly changed in the subordinate area of the own device. Yes.

  FIG. 2 is a block diagram showing a configuration of the biological information monitor 100 (100-1, 100-2).

  The biological information monitor 100 receives a radio signal from the telemeter transmitter by the antenna 101 and inputs it to the radio receiving unit 102. The wireless receiving unit 102 obtains biological information from the telemeter transmitter by detecting and demodulating the wireless signal, and outputs this to the alarm detecting unit 103. The alarm detection unit 103 determines whether or not the biological information is abnormal (for example, whether or not an arrhythmia has occurred) by performing an alarm detection process using threshold determination or the like on the biological information. As this alarm detection process, a known process may be applied, and a detailed description thereof is omitted here. If the alarm detection unit 103 determines that the biological information is abnormal, the alarm detection unit 103 outputs an alarm signal. This alarm signal is transmitted to the central monitor 10 by the transmission unit 104 via a LAN or the like.

  In addition, the alarm signal is output to the display unit 105, whereby an alarm is displayed on the display unit 105. Of course, the alarm output is not limited to this, but an alarm indicator (not shown) provided on the upper part of the biological information monitor 100 is turned on, or a sound is output from a speaker (not shown).

  In addition to such a configuration, the biological information monitor 100 according to the present embodiment includes an installation location registration unit 106 configured by a memory, and the installation location registration unit 106 is self-registered using an operation key of the operation unit 107 or the like. The installation location of the apparatus is registered in advance. Specifically, in the case of the biological information monitor 100-1, “toilet” is registered, and in the case of the biological information monitor 100-2, “talking room” is registered. When an alarm signal is output from the alarm detection unit 103, information on the installation location registered in the installation location registration unit 106 is transmitted to the central monitor 10 via the transmission unit 104. That is, when the biological information monitor 100 according to the present embodiment detects an alarm for biological information received from a subordinate telemeter transmitter, the biological information monitor 100 transmits information on the installation location of the own device together with the alarm signal to the central monitor 10. Yes.

  In addition, the biological information monitor 100 according to the present embodiment includes a scan frequency registration unit 108 configured by a memory. The scan frequency registration unit 108 uses the operation keys of the operation unit 107 and the like, and the wireless reception unit 102. Are registered in advance. In the scan frequency registration unit 108, for example, a channel frequency of a telemeter transmitter that is worn by an inpatient on the floor where the biological information monitor 100 is installed is registered as a frequency to be channel-searched. For example, if there are 32 inpatients on the floor where the biological information monitor 100 is installed and each has a telemeter transmitter, the biological information monitor 100 has 32 channels corresponding to the channel frequencies of these telemeter transmitters. The frequency is registered. Registered in the scan frequency registration unit 108 is preferably a channel frequency of a telemeter transmitter that may enter the receivable area of the biological information monitor 100. If the number of channels to be scanned increases too much, it may take a long time to detect an alarm. Therefore, it is preferable to set the number of scans in consideration of the time.

  The radio reception unit 102 amplifies the radio reception signal, a frequency generator that sequentially generates frequency signals registered in the scan frequency registration unit 108, and detects the radio reception signal that has been amplified by the sequentially generated frequency signals. And a detector for performing a channel search. As a result, when a channel scan is performed at the channel frequency registered in the scan frequency registration unit 108 and a telemeter transmitter of the registered channel frequency exists in the receivable area of the biological information monitor 100, the telemeter The biological information from the transmitter is demodulated by the wireless reception unit 102, and the demodulated biological information is output to the alarm detection unit 103. The alarm detection unit 103 performs alarm detection processing on the biological information. That is, the radio reception unit 102 and the alarm detection unit 103 form an alarm search unit 110. The alarm search unit 110 sequentially searches a plurality of channels by the radio reception unit 102 and is received by the radio reception unit 102. By performing alarm detection on the biological information of the channel, an alarm search is performed over a plurality of channels in the reception area.

  FIG. 3 is a flowchart for explaining the operation of the biological information monitor 100. In step S1, the biological information monitor 100 detects one channel registered in the scan frequency registration unit 108 by the wireless reception unit 102, and in step S2, the wireless reception unit 102 defines the received electric field strength of the signal after detection. Determine if it is greater than or equal to the value. When the received electric field strength is less than the specified value (step S2: No), the wireless reception unit 102 moves to step S3, changes the reception channel to the next channel registered in the scan frequency registration unit 108, and then returns to step S1. . As described above, the wireless reception unit 102 performs channel search by repeating steps S1-S2-S3-S1 until a channel having a reception electric field strength of a specified value or more is detected. Here, the search time per channel by the wireless reception unit 102 is, for example, about 5 seconds. That is, the wireless reception unit 102 sequentially scans the reception channels registered in the scan frequency registration unit 108 at intervals of 5 seconds.

  The biological information monitor 100 moves from step S2 to step S4 when the received electric field strength of the signal after detection by the wireless reception unit 102 is equal to or higher than a specified value (step S2: Yes). In step S4, when the alarm detection unit 103 determines the alarm state for the biological information demodulated by the wireless reception unit 102 and determines that the biological information is not in the alarm state (step S4: No), the process proceeds to step S3. Perform channel search again. On the other hand, when it determines with biometric information being an alarm state (step S4: Yes), it moves to step S5.

  Here, the wireless reception unit 102 stops the channel search (that is, fixes the channel) during the period in which the alarm detection unit 103 performs alarm detection (that is, determination of the alarm state for the biological information), and the same channel. The demodulated signal (that is, biological information) is continuously output to the alarm detection unit 103. For example, since it takes about 60 seconds to determine an alarm regarding an arrhythmia using an electrocardiogram, the wireless receiver 102 stops the channel search and alarms the demodulated signal of the same channel for a period of 60 seconds. The output continues to the detection unit 103. In the case of the present embodiment, radio receiving section 102 has two reception channels, stops one reception channel (that is, fixes the channel), and demodulates the same channel (that is, biological signal). Information) is continuously output to the alarm detection unit 103, and a channel search can be performed on another reception channel.

  If an alarm is detected by the alarm detection unit 103 (step S4: Yes), in step S5, an alarm state is displayed on the display unit 105, an alarm sound is output, an alarm indicator is lit, and transmission is performed in step S6. An alarm is notified from the unit 104 to the central monitor 10. At this time, as described above, the biological information monitor 100 transmits to the central monitor 10 information that can specify the installation location of the own device in addition to the information indicating that the alarm has been detected.

  Here, the operation when the biological information monitor 100 of the present embodiment is used will be described with reference to FIG.

  Assume that the patient suddenly changes (for example, arrhythmia occurs) when hospitalized patient P1 in patient room C is in the toilet. At this time, the biological information monitor 100-1 arranged in the toilet detects an alarm as a result of the alarm search, and notifies the central monitor 10 of information indicating that the alarm has been detected and information on the installation location of the own apparatus. Thereby, the medical worker who is looking at the central monitor 10 can express to a toilet.

  Further, it is assumed that the condition of any one of the three hospitalized patients P2, P3, and P4 in the common room has suddenly changed. At this time, the biological information monitor 100-2 arranged in the common room detects an alarm as a result of the alarm search, and notifies the central monitor 10 of information indicating that the alarm has been detected and information on the installation location of the own apparatus. . Thereby, the medical worker who is looking at the central monitor 10 can express to a common room.

  In the example of FIG. 1, the toilet and the common room are outside the receivable area AR1 of the central monitor 10, and if the biological information monitors 100-1 and 100-2 are not installed, the patient whose contents suddenly changed in the central monitor 10 I can't even know that there is. By using the biological information monitor 100 of the present embodiment, the alarm detection area can be expanded without depending on the receivable area AR1 of the central monitor 10.

  Furthermore, even if the toilet and the common room are in the receivable area AR1 of the central monitor 10, for example, when the patient P1 suddenly changes in the toilet, in the conventional system, the central monitor 10 has the patient P1 in the patient room C. Since it is registered as a patient, the medical staff will rush to the hospital room C where the patient P1 is not actually present. In contrast, if the biological information monitor 100 of the present embodiment is used, the central monitor 10 correctly displays the location where the patient P1's condition has changed suddenly, so that the medical staff has the patient P1 whose condition has changed suddenly. You can express to the right place.

  As described above, according to the present embodiment, when the alarm is detected by the alarm search unit 110 and the alarm search unit 110, the central monitor 10 detects the alarm and specifies the installation location of the own device. By providing a transmission unit 104 that transmits possible information, when a patient's condition suddenly changes, even if the patient is in a place other than a registered place such as a bed, a medical worker rushes to the patient's place. Biological information monitor 100 that can be realized.

  Further, according to the biological information monitor 100 of the present embodiment, when there is a patient whose condition has suddenly changed around it, an alarm sound or an alarm display is output, It is possible to notify that there is a patient whose condition has changed suddenly, and prompt action can be encouraged.

  Incidentally, the difference between the biological information monitor 100 of the embodiment and the conventional biological information monitor is that the conventional biological information monitor constantly and continuously monitors the biological information of one or a plurality of patients. On the other hand, the biological information monitor 100 according to the embodiment mainly operates an alarm search using a plurality of telemeter transmitters as candidates. However, also in the biological information monitor 100 of the present embodiment, the alarm search mode and the monitor mode similar to the conventional biological information monitor can be selected by the operation unit 107, and in the alarm search mode, as in the embodiment. In the monitor mode, the biometric information of the telemeter transmitter that detects the biometric information may be constantly monitored without interruption.

  In the above-described embodiment, the case where the alarm is detected and the information that can specify the installation location of the own device is transmitted to the central monitor 10 is described. In addition to this, the alarm is detected. The biometric information may be transmitted. In this way, since the patient's biological information that is the basis of the alarm can be displayed on the central monitor 10, the medical staff can grasp the patient's condition to some extent.

  Further, in the above-described embodiment, the case where the biological information monitor 100 transmits information on actual installation locations such as a toilet and a common room as information that can specify the installation location of the biological information monitor 100 to the central monitor 10 is described. However, the information that can specify the installation location to be transmitted to the central monitor 10 is not limited to this. For example, if the installation location of each biological information monitor 100 is registered in advance in the central monitor 10, that is, if each biological information monitor 100 and its installation location are registered and registered, the biological information monitor By transmitting the identification information of its own device from 100 to the central monitor 10, the central monitor 10 can specify the installation location of the biological information monitor 100 that detected the alarm.

  Furthermore, as shown in FIG. 4, the biological information monitor 100 of the above-described embodiment may be connected to a nurse call system. In FIG. 4, the biological information monitor 100 (100-1, 100-2) is connected to the nurse call system via a dedicated line of the nurse call system. In FIG. 4, only the nurse call system display 200 of the nurse call system is illustrated, and other configurations are omitted. A call device (not shown) such as a call button is also connected to the nurse call system. The nurse call system display 200 has a plurality of lamps corresponding to beds, toilets, lounges, etc. in hospitals, where the calling device is operated, and the biological information monitor 100 detects an alarm. The lamp corresponding to the place is turned on. Specifically, in the nurse call system, each lamp of the display device 200 is associated with each calling device and the biological information monitor 100 (100-1, 100-2) on a one-to-one basis. When any of the biological information monitors 100 (100-1, 100-2) detects an alarm, the lamp of the display device 200 corresponding to the biological information monitor is turned on. That is, the biological information monitor 100 of the embodiment is not limited to the case of connecting to the central monitor, but also when used by connecting to an alarm management system such as a nurse call system, the same effects as those of the above-described embodiment. Can be obtained. However, an alarm management system such as a nurse call system generally has a system configuration that can specify the location of a connected slave (calling device or biological information monitor). When the alarm is detected, only the fact that the alarm is detected may be transmitted without transmitting the information that can specify the installation location of the device itself.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

  The biological information monitor of the present invention can be applied to a system for monitoring biological information using a medical telemeter transmitter.

DESCRIPTION OF SYMBOLS 10 Central monitor 100, 100-1, 100-2 Biometric information monitor 102 Wireless reception part 103 Alarm detection part 104 Transmission part 105 Display part 106 Installation place registration part 107 Operation part 108 Scan frequency registration part 110 Alarm search part AR1, AR2, AR3 coverage area P1, P2, P3, P4 Patients

Claims (5)

A channel search by a radio reception unit, an alarm search unit for performing alarm detection on biological information of the channel received by the radio reception unit;
When an alarm is detected by the alarm search unit, a transmission unit that transmits information that can be used to identify an installation location of the device and that the alarm is detected to an external central monitor that is communicably connected;
A biological information monitor comprising: A registration unit for registering information capable of specifying an installation location of the device;
The biological information monitor according to claim 1. The alarm search unit
A wireless receiver that sequentially searches multiple channels;
An alarm detection unit for performing alarm detection on the biological information of the channel received by the wireless reception unit;
The biological information monitor according to claim 1, comprising: The wireless reception unit stops channel search during a period in which alarm detection is performed by the alarm detection unit.
The biological information monitor according to claim 3. A biological information monitor used in connection with an alarm management system,
A channel search by a radio reception unit, an alarm search unit for performing alarm detection on biological information of the channel received by the radio reception unit;
When an alarm is detected by the alarm search unit, a transmission unit that transmits an alarm detection to the alarm management system;
A biological information monitor comprising:

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