JP2016127888A - Care management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a care management system which enables a care giver to determine a notification content from a care receiver by changing an output mode to an output part according to the notification content.SOLUTION: A care management system comprises: a plurality of care-giving terminals 1 allocated to each care giver; and a plurality of care-receiving terminals 2 allocated to each care receiver and connected to the care-giving terminals 1 communicably. The care-receiving terminal 2 has notification means for transmitting a notification signal to the care-giving terminal. The care-giving terminal 1 has an output part and output means for outputting the reception of the notification signal to the output part in a predetermined output mode for each notification content of the notification signal upon receiving the notification signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a care management system.

  In hospitals, nursing homes, and the like, it is necessary to sufficiently monitor the health status of a cared body such as a patient or a resident, and the carer regularly looks at the status of the cared body. Looking around the body being cared for constantly requires great effort for the caregiver, and there is a need to reduce the caregiver's effort.

  Therefore, it has been proposed to reduce the burden on the caregiver by automatically measuring the biological information of the care receiver and transmitting it to the caregiver. Specifically, in Patent Document 1, a mat having a sensor for detecting biological information is laid on a bed, a detection signal of the sensor is converted into an electric signal, and sent to a logic determination circuit. There has been proposed an apparatus for collecting and transmitting biometric information in which biometric information is judged and output by a circuit.

  And the apparatus which collects and transmits the said biological information transmits biological information to a caregiver, when there exists abnormal biological information of a to-be-cared body. A caregiver who has received an abnormal transmission of biological information immediately goes to the caregiver to care for the caregiver.

JP 2010-284498 A

  On the other hand, in care facilities, etc., one caregiver is in charge of multiple caregivers. Especially at night, the number of caregivers per caregiver is large. In most cases, the hands cannot be released when performing nursing care.

  When there is a notification from the device that collects and transmits the biological information, it is necessary to check the content by operating the terminal. However, as described above, the caregiver cannot take care of the caregiver. In many cases, there is a demand for a system that can determine the content of notification from the care recipient without operating the terminal.

  The present invention provides a care management system in which a caregiver can determine a notification content from a care receiver by changing an output form to an output unit according to the notification content.

The care management system of the present invention includes a plurality of care terminals assigned to each caregiver and a plurality of care receiver terminals assigned to each care recipient and connected to the care terminals so as to communicate with each other. Because
The care receiver terminal has a notification means for transmitting a notification signal to the care terminal,
The care terminal
An output section;
Output means for receiving the notification signal and outputting the notification signal to the output unit in a predetermined output form for each notification content of the notification signal.

  Since the care management system of the present invention has the above-described configuration, it is possible to easily determine the content of notification from the care recipient even when the caregiver cannot take care of the care recipient. The caregiver can be quickly cared for.

It is a hardware block diagram which showed the care management system. It is the hardware block diagram which showed the care terminal. It is the hardware block diagram which showed the care receiver terminal. It is the figure which showed an example of the owner information table. It is the figure which showed an example of the output form table. It is the flowchart which showed the operation | movement of a notification means. It is the flowchart which showed the operation | movement of an output means. It is the flowchart which showed the memory | storage operation | movement of the biosignal in a notification means. It is the graph which showed an example of the biomedical signal. It is the figure which showed an example of the pulse wave table. It is the flowchart which showed the operation | movement of the state determination of the to-be-cared body in a notification means. It is the figure which showed an example of the unit time pulse wave number table. It is the flowchart which showed the operation | movement of the state determination of the to-be-cared body in a notification means. It is the graph which showed an example of the body movement signal. It is the figure which showed an example of the unit time body motion number table. It is the flowchart which showed the operation | movement of the state determination of the to-be-cared body in a notification means. It is the figure which showed the point which calculates the sum total of the output of a biomedical signal. It is the figure which showed an example of the arterial oxygen saturation table. It is the figure which showed an example of the threshold value range table. It is the flowchart which showed the operation | movement of the state determination of the to-be-cared body in a notification means. It is the figure which showed an example of the reference | standard range table.

  An example of the care management system A of the present invention will be described with reference to the drawings. As shown in FIG. 1, the care management system A includes a plurality of care terminals 1 assigned to each caregiver, and a plurality of care recipients assigned to each care receiver and connected to the care terminal 1 in a communicable manner. Terminal 2.

  The care management system A includes a plurality of care terminals 1, and each care terminal 1 is assigned to each caregiver. The care terminal 1 only needs to be communicably connected to the care receiver terminal 2 to be described later, and a known portable communication device can be used. Examples thereof include a smartphone, a tablet-type mobile communication terminal, and a mobile phone. It is done.

  The care management system A includes a plurality of care receiver terminals 2, and each care receiver terminal 2 is assigned to each care receiver. The care receiver terminal 2 only needs to be communicable with the care receiver terminal 1. In addition, as a to-be-care object, the person who needs care, a pet, etc. are mentioned, for example.

  The care terminal 1 and the care receiver 2 are connected to each other using a general-purpose communication protocol (for example, TCP / IP, NetBEUI), and the care terminal 1 and the care receiver 2 are assigned in advance to each other. Are identified by their identification numbers. Below, although the case where the care terminal 1 and the care receiver 2 are distinguished using an IP address as an identification number will be described as an example, the present invention is not limited thereto.

  FIG. 2 is a diagram illustrating a hardware configuration of the care terminal 1. The nursing care terminal 1 includes a CPU (Central Processing Unit) 11, a storage device 12 such as an SSD (Solid State Drive) and HDD (Hard Disk Drive) corresponding to a storage unit, a ROM (Read Only Memory) 13, a RAM ( Random Access Memory) 14 and the input device 15 such as a touch panel and keyboard corresponding to the input unit, the vibration device corresponding to the output unit, the output device 16 such as a touch panel, display and speaker, and communication with other terminals are enabled. The communication unit 17 is electrically connected.

  Various programs executed by the CPU 11 and various data are stored in the ROM 13 and the storage device 12 of the care terminal 1. The RAM 14 stores a memory for temporarily storing setting values set based on various programs.

  In the ROM 13 and the storage device 12 of the care terminal 1, various programs (output programs and the like) as various means (output means and the like) provided in the care terminal 1 are stored. Various means are realized by reading and writing data in the RAM 14 and the storage device 12 under the control of the CPU 11 by causing the CPU 11 and the RAM 14 to read various programs.

  FIG. 3 is a diagram illustrating a hardware configuration of the care receiver terminal 2. The care receiver 2 includes a CPU (Central Processing Unit) 21, a storage device 22 such as an SSD (Solid State Drive) and HDD (Hard Disk Drive) corresponding to a storage unit, a ROM (Read Only Memory) 23, a RAM (Random Access Memory) 24, an input device 25 such as a touch panel and a keyboard corresponding to an input unit, a touch panel corresponding to an output unit, an output device 26 such as a display and a speaker, and the like to enable communication with other terminals The communication unit 27 is electrically connected.

  Furthermore, a biological signal measuring device may be electrically connected to the CPU 21. Examples of the biological signal device include a piezoelectric sensor, an oxygen saturation measurement unit that measures arterial blood oxygen saturation, a body temperature measurement unit that measures body temperature, and a heart rate measurement unit that measures heart rate.

  A known piezoelectric sensor can be used. Specifically, a ground electrode is laminated and integrated on one surface of the piezoelectric sheet, and a signal electrode is laminated and integrated on the other surface of the piezoelectric sheet. Conductive wires are electrically connected to the ground electrode and the signal electrode, and these conductive wires are electrically connected to the measurement unit, so that the potential generated in the piezoelectric sheet is measured by the measurement unit. ing.

  Examples of the oxygen saturation measurement unit for measuring arterial oxygen saturation include a known device for measuring arterial oxygen saturation, such as a pulse oximeter.

  Examples of the body temperature measuring unit that measures body temperature include a known body temperature measuring device, such as a mercury thermometer, a kerosene thermometer, an alcohol thermometer, a thermistor thermometer, and an infrared thermometer.

  Examples of the heart rate measuring unit for measuring the heart rate include a known device for measuring the heart rate, such as a photoelectric pulse meter, an LED pulse meter, an infrared pulse meter, and a piezoelectric sensor. The heart rate is the number of beats of the heart per minute, and the pulse rate per minute can be substituted.

  Various programs executed by the CPU 21 and various data are stored in the ROM 23 and the storage device 22 of the care receiver terminal 2. The RAM 24 stores a memory for temporarily storing setting values set based on various programs.

  In the ROM 23 and the storage device 22 of the care receiver terminal 2, various programs (notification programs and the like) as various means (notification means and the like) included in the care receiver terminal 2 are stored. Various means are realized by reading and writing data in the RAM 24 and the storage device 22 under the control of the CPU 21 by causing the CPU 21 and the RAM 24 to read various programs.

  The storage device 22 of the care receiver 2 stores an owner information table, and the name of the cared body to which the care receiver 2 is assigned is registered in the owner information table (see FIG. 4). In the owner information table illustrated in FIG. 4, “Taro to be cared” is registered as the name of the cared body. Registration and change in the owner information table are performed by input from the input device 25 of the care receiver terminal 2.

  An output form table is stored in the storage device 21 of the care terminal 1, and the contents of the output form corresponding to the type of notification contents are registered in the output form table (see FIG. 5). The output form refers to an output method for outputting to the output device a notification signal for notifying the caregiver that the notification signal has been received when the care terminal receives the notification signal from the care receiver. Specifically, as an output form, for example, (1) a method of notifying a caregiver of reception of a notification signal by vibration (vibration) by vibrating a vibrating body (output device 16) of the care terminal; And a method of notifying a caregiver of receipt of a notification signal by emitting a sound from the speaker (output device 16). In the output form (1), different output forms can be obtained by changing the vibration pattern. In the output form (2), different output forms can be obtained by changing the type or pattern of the sound. For example, if the type of notification content is “abnormality of pulse wave”, “repeated pattern of pausing for 1 second after vibrating the vibrator for 5 seconds”, and “abnormal body temperature” “Repeat 5 times pattern of oscillating vibrating body for 1 second and then resting for 0.5 second”. If “abnormality of arterial blood oxygen saturation”, “pause vibrating body for 5 seconds and then rest for 1 second “5 repetitions of the pattern to be performed” and “speaking bell sound from the speaker for 5 seconds” in the case of “input by the care receiver”. Registration and change in the output form table are performed by input from the input device 25 of the care receiver terminal 2.

  The output form may be arbitrarily determined for each notification content of the notification signal. However, the notification content is classified into a plurality of categories, and care is provided by assigning the same output form to the notification content classified in the same category. It is preferable because a person can immediately determine the notification content based on the output form output from the output device.

  For example, “abnormality of pulse wave” and “abnormality of arterial blood oxygen saturation” are classified as “warning rank” because the abnormal content is serious, and the notification content belonging to “warning rank” includes “ An output form of “repeating 5 times a pattern of pausing for 1 second after vibrating the vibrating body for 5 seconds” is given. “Body temperature abnormality” is not so serious as abnormal content, so it is classified as “attention rank”, and notification content belonging to “attention rank” includes “vibrating body for 1 second and resting for 0.5 second Output pattern of “repeating pattern 5 times”. As will be described later, since the notification content by the input from the input screen by the care receiver is not often a serious case, an output form of “sound bell sound from speaker for 5 seconds” is given. As described above, when the notification signal is received in the output form “repetition of the pattern in which the vibrating body is vibrated for 5 seconds and then paused for 1 second 5 times” is output from the output unit, Therefore, the caregiver can immediately go to the care receiver and easily recognize that it is necessary to care for the care receiver. On the other hand, in the case where the notification signal is received in the output form of “speaking a bell sound from the speaker for 5 seconds” from the output unit, it is often not a serious abnormality. The caregiver can easily recognize that it should be performed in the normal order. In the above, the notification content is classified into a plurality of categories based on the weight of the health abnormality of the care recipient, and the case where the same output form is given to the notification content classified in the same category, However, the present invention is not limited to this, and the criteria for classification of the notification contents may be arbitrarily determined.

  The care receiver terminal 2 has notification means for transmitting a notification signal to the care terminal 1. The notification signal transmitted to the care terminal 1 from the care receiver terminal 2 only needs to include content that the care receiver to which the care receiver terminal 2 is assigned wants to notify the caregiver. The contents of the notification signal include, for example, the occurrence of an abnormality in the health of the cared body, a request to accompany the toilet, a request for an object desired by the cared body, and the like.

  As shown in FIG. 6, the notification program corresponding to the notification means is activated by an input from the input device 25 of the care receiver terminal 2 (step 1), and displays an input screen on the output device 26 of the care receiver terminal 2. (Step 2), the input device 25 waits for the input of the content (request content) to be notified from the care receiver to the caregiver on the input screen, and after the input of the request content is confirmed (Step 3), the owner The name of the cared body registered in the information table is read (step 4), the request content, the name of the cared body, and the notification content meaning "input by cared body" are used as a notification signal with the cared terminal 2 It is transmitted to all communicable care terminals 1 (step 5).

  In the above, an input screen is displayed on the output device 26 of the care receiver 2 by the notification program, and the notification content is input to the input screen. The device is attached and electrically connected, and the biological signal of the care recipient is constantly measured by the biological signal measuring device, while the notification program is always started and measured by the biological signal measuring device by the notification program. When the state of the cared for body is automatically determined according to a predetermined criterion based on the biosignal, and the state of the cared for body is determined to be in a state requiring care (care required state), A biological signal indicating the name and abnormality of the care recipient (notification content, such as “abnormality of pulse wave”, “abnormality of body temperature”, “abnormality of arterial oxygen saturation”, etc.) is provided as a notification signal It may be sent automatically to the end 1.

  Specifically, when the biological signal measuring device is a piezoelectric sensor, a combined wave of the biological signal of the care receiver detected by the piezoelectric sensor is separated into respective biological signals by the notification program, and the separated biological signals are separated. The signal is stored in the storage device 12.

  Piezoelectric sensors are arranged on a bed or chair used by a cared body, and the cared body is lying or sitting on the piezoelectric sensor. Periodic pulses and breaths emitted from the cared body The piezoelectric sheet of the piezoelectric sensor is pressed and compressed and deformed by non-periodic vibration such as vibration or body movement of the care receiver, and a potential is generated in the piezoelectric sheet along with this compression deformation. It changes with the vibration that is emitted. When the vibration generated from the care receiver is a periodic vibration such as a pulse or a breath, the potential generated in the piezoelectric sheet also changes periodically. As shown in FIG. 8, the measurement unit is controlled by the notification program, and the change in potential over time generated in the piezoelectric sheet as described above is acquired as a biological signal (step 10). The biological signal obtained from the measurement unit is generated by a plurality of vibrations such as a pulse, breathing, and body movement emitted from the care receiver, and becomes a composite wave of the plurality of biological signals. Therefore, the notification program generates a separated signal by separating a composite wave of a plurality of biological signals for each frequency by Fourier transformation, and this separated signal is converted into each biological signal (for example, a pulse wave signal by inverse Fourier transformation). , Respiratory signal, body motion signal, etc.) (step 11). The biological signal obtained by separating each biological signal from the synthetic wave of the biological signal by the notification program is, for example, as shown in FIG. 9, where the vertical axis is potential and the horizontal axis is time. In the case of a pulse wave signal and a respiratory signal, as shown in FIG. 9, the potential changes periodically with time. A person's pulse is 50-90 times per minute with a period of 0.6-3 Hz, and a person's breathing is 16-18 times per minute with a period of 0.1-1 Hz. Since the body movement is generally 10 Hz or more, the combined wave of the plurality of biological signals is separated into the respective biological signals by the notification program using these as a guideline as described above.

  Then, the biological signal obtained by separating from the synthetic wave of the biological signal is stored in the storage device 22 as the storage unit by the notification program (step 12). The storage device 22 stores a pair of a potential generated by the piezoelectric sensor and a time when the potential is measured as a biological signal so as to be independently readable for each biological signal. For example, when the biological signal is a pulse wave signal, as shown in FIG. 10, the potential generated by the piezoelectric sensor and the measurement time are paired and stored in the pulse wave table. When the biological signal is a respiration signal, the potential generated by the piezoelectric sensor and the measurement time are paired and stored in the respiration table as in the case of the pulse wave signal.

  As shown in FIG. 11, the notification program stores one or a plurality of biological signals (for example, a pulse wave signal and a respiratory signal) obtained by separating the synthesized wave of the biological signal stored in the storage device 22 by the notification program. Etc.) are accessed (step 13). In the following, a case where a pulse wave signal is accessed as a biological signal will be described as an example.

  As shown in FIG. 9, the pulse wave signal periodically changes when the vertical axis represents potential and the horizontal axis represents time. By the notification program, the pulse wave signal is recognized with the vertical axis as potential and the horizontal axis as time, and the pulse wave signals stored in the storage device 22 in chronological order are sequentially counted from the oldest unit time (for example, 1 minute, 30 seconds, etc.), and the period included in the pulse wave signal within each counting unit time (potential takes a maximum value from 0, then returns to 0 after taking a minimum value) The number of periods is set as a unit time pulse wave number, and this unit time pulse wave number is sequentially stored in the storage device 22 as a unit time biological signal number in time series (step). 14). If the pulse wave signal within the total unit time includes a waveform that is less than one cycle, this waveform is excluded. As shown in FIG. 12, in the storage device 22, numbers (1, 2, 3,...) Are sequentially assigned from the oldest to the total unit time, and the total unit time number and this total unit time are used. The calculated unit time pulse wave number is stored in the unit time pulse wave number table as a pair.

  As described above, the notification program divides the pulse wave signal from the oldest one for each total unit time, and calculates the unit time pulse wave number for each total unit time. Therefore, the total time of the pulse wave signal that is new in time may not reach the total unit time. In such a case, the pulse wave signal stored in the storage device 22 increases and accumulates with the passage of time by the notification program, so the total time of the new pulse wave signal in time becomes the total unit time. It is determined whether or not it has been reached (step 15). When the total time of the new pulse wave signal in time reaches the total unit time, the unit time pulse wave number in this total unit time is calculated, and the newly calculated unit time pulse wave number is added and updated to the storage device 22 Is stored in the unit time pulse wave number table (step 16).

  As described above, the notification program divides the pulse wave signal in time series sequentially for each total unit time, and the unit time pulse wave number included in the divided total unit time is the unit time pulse of the storage device 22. Sequentially added and stored in the wave number table.

  Then, the average value and standard deviation σ of all unit time pulse wave numbers stored in the storage device 22 are calculated by the notification program (step 17). As described above, the unit time pulse wave number stored in the storage device 22 increases with time, so when a new unit time pulse wave number is stored in the unit time pulse wave number table of the storage device 22, the notification program The average value and the standard deviation σ of all unit time pulse wave numbers stored in the storage device 22 are recalculated and updated (step 17). In the above, the average value and the standard deviation σ are calculated using all the unit time pulse wave numbers stored in the unit time pulse wave number table, but the unit time pulse wave numbers stored in the unit time pulse wave number table are as follows. Among them, the average value of the unit time pulse wave number and the standard deviation σ may be calculated only for a predetermined number of unit time pulse wave numbers continuous from the latest unit time pulse wave number.

  Further, the notification program calculates (average value of unit time pulse wave number −3σ) and (average value of unit time pulse wave number + 3σ) from the average value of unit time pulse wave number and standard deviation σ. Average value −3σ) to (average value of unit time pulse wave number + 3σ) is set as the reference range (step 18). As described above, when the average value of the unit time pulse wave number and the standard deviation σ are updated, the reference range is also recalculated and updated.

  The notification program determines whether or not the unit time pulse wave number included in the latest total unit time is included in the reference range (step 19).

  If the unit time pulse wave number is within the reference range, it is determined that the health status of the care receiver is in a normal state (step 20). Next, returning to step 13, the above operation is repeated.

  On the other hand, when the unit time pulse wave number is out of the reference range, it is determined by the notification program that there is a possibility that the health status of the cared body is abnormal, and the health status of the cared body is required. It is determined that the patient is in the care state (step 12), and the notification content “abnormal pulse wave” and the name of the care receiver are automatically transmitted to the care terminal 1 as a notification signal (step 5).

  Since most of the unit time pulse wave number of the cared for body is statistically included in the above reference range, if the unit time pulse wave number is out of the reference range, there is some problem in the health condition of the cared body. Therefore, it is determined by the notification program that an abnormality has occurred in the care receiver.

  In this way, the notification program compares the pulse wave signal of the cared object in the past with the pulse wave signal of the current cared object, and an abnormality may have occurred in the health state of the cared object It is possible to detect that there is sex early.

  In the above description, the operation for the pulse wave signal has been described. However, since the same operation is performed for the respiratory signal, the description thereof is omitted. In this case, the pulse wave signal is read as a respiration signal, and the unit time pulse wave number is read as a unit time respiration rate.

  In the above description, the case where the biological signal is based on a biological signal that periodically changes, such as a pulse wave signal and a respiratory signal, has been described. Thus, the notification program may be executed. In the present invention, “periodic” means that when the horizontal axis is time and the vertical axis is potential and the biological signal is represented in the graph, the biological signal rises from 0 mV and takes a maximum value and then drops to 0 mV. When a series of changes returning to 0 mV after taking the minimum value after passing through 1 is defined as one cycle, this cycle appears repeatedly. The maximum and minimum values taken by the biological signal during a cycle, and the length of the cycle need not be constant and may vary. In the following, a case where body movement is used as a biological signal will be described as an example.

  As shown in FIG. 13, one or a plurality of biological signals (for example, body signals) obtained by separating the synthesized wave of the biological signals stored in the storage device 22 by the notification program and not periodically changing as shown in FIG. Are accessed (step 22).

  The notified biological signal (body motion signal) is recognized by the notification program as the potential on the vertical axis and the time on the horizontal axis. Then, as shown in FIG. 14, the notification program divides each of the accessed biological signals in order from the oldest one in terms of the total unit time (for example, 1 minute, 30 seconds, etc.). T (T1, T2, T3... Tn) is formed. Note that n is a natural number.

  The sum of the outputs of the body motion signals that appear in the state determination section T is calculated for each state determination section T. The body motion signal changes up and down when the horizontal axis represents time and the vertical axis represents potential. In the present invention, “total output of biological signals” means “total area of a portion surrounded by a curve B drawn by a biological signal and a reference straight line C indicating a potential of 0 mV” (an area of a blackened portion in FIG. 14) ).

  The total output is sequentially stored in the storage device 22 as a unit time biological signal number in time series (step 23). As shown in FIG. 15, in the storage device 22, numbers (1, 2, 3,...) Are sequentially assigned from the oldest to the total unit time, and the total unit time number and this total unit time are used. The calculated total output (unit time body motion number) is stored in the unit time body motion number table as a pair.

  As described above, the notification program divides the pulse wave signal from the oldest one for each counting unit time, and calculates the total output (number of unit time body movements) for each counting unit time. Therefore, the total time of body motion signals that are new in time may not reach the total unit time. In such a case, the body motion signal stored in the storage device 22 increases and accumulates over time by the notification program, so the total time of the body motion signal that is new in time becomes the total unit time. It is determined whether or not it has been reached (step 24). When the total time of the new body motion signal reaches the total unit time, the number of unit time body motions in this total unit time is calculated, and the newly calculated unit time body motion number is added, updated, and stored. It is stored in the device 22 (step 25).

  In this way, the body motion signal is sequentially divided in time series by the notification program for each total unit time, and the total output (number of unit time body motion) included in this divided total unit time is stored. The information is sequentially added and stored in the unit time body movement number table of the device 22.

  Then, the average value and the standard deviation σ of the sum total (number of unit time body movements) of all outputs stored in the storage device 22 are calculated by the notification program (step 26). As described above, the total output (unit time body movement number) stored in the storage device 22 increases with time, so the new output total (unit time body movement number) is stored in the storage device 22. The time is updated after the average value and standard deviation σ of the total sum (number of unit time body movements) of all outputs stored in the storage device 22 are recalculated by the notification program (step 27). In the above, the average value and the standard deviation σ are calculated using the sum of all outputs (unit time body motion number) stored in the unit time body motion number table, but stored in the unit time body motion number table. Of the total output (unit time body movements), only the total of the predetermined number of outputs (unit time body movements) consecutive from the latest output sum (unit time body movements) is the target Alternatively, the average value and the standard deviation σ of the total output (number of body movements per unit time) may be calculated.

  Further, from the average value of the total sum of output (unit time body motion number) and the standard deviation σ, [the average value of output sum (unit time body motion number) −3σ] and [total output (unit time body) (Average number of movements) + 3σ] is calculated, and [average value of total output (unit time body movements) −3σ] to [average value of total output (number of body movements per unit time) + 3σ] as a reference range It is set (step 26). As described above, when the average value of the total output (number of unit time body movements) and the standard deviation σ are updated, the reference range is also recalculated and updated.

  It is determined by the notification program whether or not the total sum (number of unit time body movements) included in the latest total unit time is included in the reference range (step 28).

  If the total output (number of body movements per unit time) is within the reference range, it is determined that the health status of the care receiver is in a normal state (step 29). Next, returning to step 22, the above operation is repeated.

  On the other hand, if the number of unit time body movements is out of the reference range, the notification program determines that there is a possibility that the health status of the cared body is abnormal, and the status of the cared body is necessary. It is determined that the patient is in the care state (step 30), and the notification content “abnormal body movement” and the name of the care receiver are automatically transmitted to the care terminal 1 as a notification signal (step 5).

  This is because most of the total output (number of unit time body movements) of the care recipient is statistically included in the above reference range, so the total output (number of unit time body movements) is out of the reference range. In such a case, it is highly likely that the cared body is struggling, rampaging, or losing movement, and there is a high possibility that some problem has occurred in the health state of the cared body.

  As described above, the body movement signal of the body to be cared for in the past is compared with the body motion signal of the body to be cared for by the notification program, so that there is a possibility that an abnormality has occurred in the body to be cared for. Can be discovered early.

  In the above, it is determined by the notification program whether the care recipient is in a normal state or a care-needed state, but even if the care recipient is determined to be out of bed, the state of the care recipient is determined. Good.

  As shown in FIG. 16, the notification program stores one or a plurality of biological signals (for example, a pulse wave signal and a respiratory signal) obtained by separating the synthesized wave of the biological signal stored in the storage device 22 by the notification program. Etc.) are accessed (step 31).

  The biometric signal accessed by the notification program is recognized with the vertical axis representing potential and the horizontal axis representing time. Then, as shown in FIG. 17, the notification program divides each of the accessed biological signals in order from the newest one in time, for each unit time (for example, 1 minute, 30 seconds). W is formed (step 32). The number of bed leaving unit sections to be formed is set corresponding to the number of bed leaving unit sections used for the past bed leaving output summation described later.

  The notification program calculates the sum of the outputs of the biosignals appearing in the latest bed leaving unit T1 for each biosignal, and calculates the sum of the outputs of each biosignal. It is said. Further, for each biological signal, the notification program includes one or more bed unit sections W2, W3, W4 including the new bed unit section W2 next to the latest bed unit section W1 and continuing to the latest bed unit section W1. The sum total of the outputs of the biological signals appearing in the bed leaving unit section including the sum of the outputs of the respective biological signals is calculated, and this sum is set as the past bed output total (step 33). . The number of bed leaving unit sections targeted for calculating the past bed leaving output total is not particularly limited, but is preferably 1 to 100, and more preferably 1 to 50.

  The biological signal changes up and down around a potential of 0 mV, when the horizontal axis represents time and the vertical axis represents potential. The “total sum of biosignal outputs” means “the total area of the portion surrounded by the curve B drawn by the biosignal and the reference straight line C indicating the potential of 0 mV” (the area of the hatched portion in FIG. 17).

  By the notification program, the latest bed output total is compared with the past bed output total, and it is determined whether or not the latest bed output total is equal to or less than a predetermined ratio of the past bed output total (step 34). ).

  The predetermined ratio of the past bed output total may be set as appropriate in consideration of the age, sex, etc. of the cared person, for example, 1/10, 1/5, etc. of the past bed output total. . When the latest total bed output is equal to or less than a predetermined ratio of the past bed output total, a bed signal is transmitted because the potential measured by the piezoelectric sensor is a living body emitted from the body to be cared for. This is because a potential due to noise having a movement similar to vibration is included. Therefore, when the latest total bed output is equal to or less than a predetermined ratio of the past bed output, the notification program determines that the cared body is about to leave the bed, and the cared body needs care. The state is determined (step 35), and the notification content “possibility of getting out of bed” and the name of the care receiver are automatically transmitted to the care terminal 1 as a notification signal (step 5).

  When the latest total output of bed output exceeds the predetermined ratio of the total bed output in the past by the notification program, it is determined that the cared body is stably present on the bed, and the cared body Is determined to be in a normal state (step 36). Then, returning to step 31, the above operation is repeated.

  As described above, based on the biological signal measured by the biological signal measuring device, the notification program determines whether the state of the care target is in a normal state or a state requiring care.

  In the execution procedure of the notification program shown in FIG. 11 and FIG. 13, the case where (average value of unit time pulse wave number-3σ) to (average value of unit time pulse wave number + 3σ) is set as the reference range has been described. , (Average value of unit time pulse wave number −3σ) to (average value of unit time pulse wave number + 3σ) are illustrated as examples of the reference range, and a reference range different from the above may be defined.

  When the biological signal measuring device is an oxygen saturation measuring unit that measures arterial blood oxygen saturation, the biological signal (arterial blood oxygen saturation) of the care receiver is measured at regular intervals in each measuring unit. . Hereinafter, a case where the biological signal measurement device is an oxygen saturation measurement unit will be described as an example.

  The measurement value of the biological signal measured by the oxygen saturation measurement unit by the notification program is stored for each biological signal together with the measurement time in the arterial blood oxygen saturation table. FIG. 18 shows an example of an arterial oxygen saturation table.

  A threshold range is determined in advance for the arterial oxygen saturation, and the threshold range of the arterial oxygen saturation is stored in the threshold range table in the storage device 22 of the care receiver 2. Further, the threshold range table also stores a reference time for calculating a comparison value used for determining the risk of infection of the care recipient by the determination program. An example of the threshold range table is shown in FIG. In FIG. 19, for example, the threshold range of the arterial blood oxygen saturation is defined as “90% or more”. Registration and change of each numerical value in the threshold range table are performed from the input device 25 of the care receiver terminal 2.

  First, as shown in FIG. 20, the notification program reads out the threshold range and the reference time from the threshold range table, and also reads out the measured values stored in the arterial oxygen saturation table in the storage device 12 (steps). 37). The measurement values read from the arterial blood oxygen saturation table are read from the latest measurement values for the reference time stored in the threshold range table. When the measurement values for the reference time are not stored in the arterial oxygen saturation table, all the measurement values stored in the arterial oxygen saturation table are read.

Next, the read measurement values are sequentially compared with the threshold range by the notification program, and the ratio of the measurement values that fall within the threshold range among all the read measurement values is expressed by the following formula. The calculated value is used as a comparison value (step 38).
Comparison value (%) = 100 × (number of measured values falling within threshold range)
/ (Number of all readings read)

  On the other hand, a reference range table is stored in the storage device 12 of the infectious disease risk determination system 1, and a reference range of arterial oxygen saturation is stored in the reference range table. FIG. 21 shows an example of the reference range table. In FIG. 21, for example, the reference range of arterial blood oxygen saturation is defined as “90% or more”. Each numerical value is registered and changed in the reference range table from the input device 15 of the infectious disease risk determination system 1.

  Then, the reference range of the arterial oxygen saturation is read from the reference range table by the notification program (step 39). Next, the comparison value calculated in step 38 is compared with the reference range, it is determined whether or not the comparison value is within the reference range (step 40), and the comparison value is not within the reference range. Is determined that an abnormality has occurred in the health condition of the cared body, the cared body is determined to be in a care-needed state (step 41), the notification content “abnormality of arterial oxygen saturation” and the cared The name of the body is automatically transmitted to the care terminal 1 as a notification signal (step 5). On the other hand, if the comparison value is within the reference range, it is determined that the care receiver is in a normal state (step 42). Next, returning to step 37, the above operation is repeated.

  In the above description, the case of having an oxygen saturation measuring unit for measuring arterial blood oxygen saturation has been described. However, since the biological signal measuring device is a body temperature measuring unit for measuring body temperature, the same operation is performed. Is omitted.

  As shown in FIG. 7, a notification signal is transmitted from the care receiver 2 to the care terminal 1 by the notification program, and when this notification signal is received by the care terminal 1 (step 6), the notification output of the care terminal 1 is output. A notification output program corresponding to the means is automatically started (step 7), and the notification output program stores the content of the notification contained in the notification signal in the output form table in the storage device 12 of the care terminal 1 as a search key. The output form corresponding to the type of notification content that is searched and included in the notification signal is selected (step 8). If there is no corresponding search content as a result of searching the output form table using the notification content as a search key, “other” is selected as the notification content.

  Next, the fact that the notification signal has been received from the care receiver terminal 2 is output to the output device 16 in the output form selected above by the notification output program (step 9). Recognize that there was a notification. For example, when the notification content is “abnormal pulse wave”, the pattern of pausing for 1 second after the nursing care terminal 1 is vibrated for 5 seconds by the vibrator is repeated five times. When the selected output form is an output form by vibration or sound, it is preferable because the caregiver can determine the notification contents without operating the care terminal.

  Further, when the fact that the notification signal is received is output to the output device 16 in the output form selected above, the notification content and the name of the care receiver, and the request signal are included in the notification signal The request content is output to the output device 16 (step 9). The output to the output device 16 is not particularly limited. For example, the notification content, the name of the care recipient, and the display of the request content on the display, if necessary, the notification content, the name of the care recipient, and as necessary. The request content is output by voice from a speaker, and the caregiver can easily recognize without operating the care terminal. Therefore, output by voice is preferable.

  When the fact that the notification signal has been received from the care receiver 2 is output to the output device 16 in the output form selected above, it is output to the output device 16 in the output form corresponding to the notification content, so that notification The caregiver can easily recognize the content or the level of its significance. As for the output form by vibration or sound, the caregiver can judge the notification contents without having to check the display of the care terminal 1, and even if the hand cannot be released during the care of the care recipient, the notification is not given. The situation of the body to be cared for can be easily grasped.

  When the notification content is classified into a plurality of categories and a notification signal including the notification content classified into the same category is received, the notification signal is output from the care receiver terminal in the same output form from the output device 16 of the care terminal 1. By outputting the message of reception, the caregiver can easily grasp the type of notification content, the level of severity, and the like depending on the output form.

  Specifically, the notification content may be classified based on the type of the biological signal indicating abnormality. “Pulse wave abnormalities”, “Respiration abnormalities” and “Arterial blood oxygen saturation abnormalities” are at the same level as severity, so they are classified into the same category and output in the same category, while Since “sex” is a property different from the health abnormality of the care recipient, the caregiver has received a notification signal from the care recipient terminal by classifying it into another category and making another output form. Depending on the output form when output from the output device 16, the severity and type of notification content can be easily recognized.

1 Nursing terminal 2 Nursing terminal A Nursing care management system

Claims (3)

A care management system comprising a plurality of care terminals assigned to each caregiver and a plurality of care receiver terminals assigned to each care recipient and connected to the care terminals in a communicable manner;
The care receiver terminal has a notification means for transmitting a notification signal to the care terminal,
The care terminal
An output section;
Receiving the notification signal, and having an output means for outputting the reception of the notification signal to the output unit in a predetermined output form for each notification content of the notification signal. Management system. The care management system according to claim 1, wherein an output form to the output unit by the output means is an output form by sound or vibration. The notification content is classified into a plurality of categories in advance, and the reception of the notification signal is output to the output unit of the care terminal in the same output form with respect to the reception of the notification signal including the notification content classified into the same category. The care management system according to claim 1 or 2, wherein

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