JP6656513B2 - Biological information monitoring system - Google Patents

Description

  The present invention detects the leaving / bed of a user (care receiver) lying on a mattress such as a nursing bed, collects biological information such as breathing, heart rate, and pulse, and determines the abnormal event. The present invention relates to a biological information monitoring system for notifying a user of such a situation, and more particularly to a system devised so that an important event such as death or seizure can be quickly and with few erroneous judgments.

Patent Document 1 discloses a configuration of a biological information monitoring system that detects the user's leaving / bed in a nursing care bed, collects biological information such as breathing, heart rate, and pulse, and detects and reports an abnormality. There is a “sleeping state monitoring device” described in Document 1 and a “device for collecting and transmitting biological information” described in Patent Document 2.
In the “sleeping state monitoring device” described in Patent Document 1, first, a hard sheet is installed on a bed, and an elastic cushion sheet is installed on the hard sheet. A pressure detection tube and a bed leaving sensor are provided between the hard sheet and the cushion sheet. A subject is lying on the cushion sheet.

  Air is sealed in the pressure detection tube, and a minute differential pressure sensor including a condenser microphone is provided. The minute pressure difference sensor detects a pressure change in the pressure detection tube by the subject.

A signal shaping section is connected to the fine differential pressure sensor, and after the signal output from the fine differential pressure sensor is amplified by the signal shaping section, frequency components in a range necessary for measuring the intensity of the biological signal are obtained. Is taken out.
An automatic gain control unit is connected to the signal shaping unit. The automatic gain control section performs gain control for adjusting the signal output from the signal shaping section so as to be within a predetermined signal level range.

  The automatic gain control section is connected to a body motion detection operation section, and the body motion detection operation section monitors the time when a signal output from the automatic gain control section exceeds a predetermined upper limit value to monitor the body movement. Is detected.

  A signal strength calculator is connected to the automatic gain controller, and calculates a signal strength not based on the gain control.

A sleeping state determination control unit is connected to the bed leaving sensor, the automatic gain control unit, the body motion detection calculation unit, and the signal strength calculation unit. Based on signals from the bed leaving sensor, the automatic gain control unit, the body movement detection calculation unit, and the signal strength calculation unit, the sleeping state determination control unit determines whether or not there is a biological signal of the subject and whether or not the patient is in bed / bed. A determination is made.
Also, the presence or absence of an important event such as death or seizure of the subject is determined based on the arithmetic processing signal obtained by performing arithmetic processing on the biological signal.

  Next, with regard to a "device for collecting and transmitting biological information" described in Patent Document 2, there is a bed on which a mattress is laid, and a subject lies on the mattress. A mat provided with a pressure sensor is provided between the mattress and the bed. The mat is placed on the head side, chest side, and waist side of the subject.

  The pressure sensor installed on the mattress is composed of a piezoelectric element, converts the movement of the subject into a voltage, and outputs a biological information signal. This biological information signal is amplified by an amplifier and then processed by a first BPF (bandpass filter) circuit. Thereby, a body motion signal is extracted from the biological information signal.

The first BPF (band-pass filter) circuit is connected to a respiratory rate calculation circuit via a second BPF (band-pass filter) circuit, and is connected via a third BPF (band-pass filter) circuit. The heart rate calculation circuit is connected. The respiratory rate of the subject can be obtained by processing the body motion signal by the respiratory rate calculation circuit. Further, the heart rate of the subject can be obtained by processing the body motion signal by the heart rate calculation circuit.
The first BPF (band-pass filter) circuit is connected to a leaving-bed or the like determination circuit, which determines whether the subject has moved or has left the bed.

In addition, an alarm circuit is connected to the respiratory rate calculation circuit, the heart rate calculation circuit, and the leaving bed determination circuit. This alarm circuit issues an alarm based on a respiratory rate, a heart rate, a state of getting out of bed / bed, and the like.
Also, in the case of the invention described in Patent Document 2, the presence or absence of an important event such as death or seizure of a subject is determined based on an arithmetic processing signal obtained by performing arithmetic processing on the biological signal.

Japanese Patent No. 4013195 Japanese Patent No. 520264

However, the above-described conventional configuration has the following problems.
First, in the “sleeping state monitoring device” described in Patent Literature 1, an important event such as death or seizure is determined after processing a signal output from the slight differential pressure sensor by a signal shaping unit or the like. The problem is that the discovery of important events such as death, seizures, etc. is delayed.
This is the same in the case of the “device for collecting and transmitting biological information” described in Patent Document 2.
Although it is obvious to everyone that death and seizure are important events, detection of getting out of bed / bed is also as important as that of the user depending on the user's condition. For example, if a user with a weak leg tries to leave the bed, there is a concern that a subsequent fall may cause a fracture, etc. If it is possible to do this, there will be many false alarms and the burden on the caregiver will be enormous. On the other hand, the respiratory rate and pulse rate are not accurate to better understand the current state, but if they are within normal values, in fact, the slight errors and fluctuations of these values are as described above. There are fewer problems than important events.

  The present invention has been made on the basis of such points, and the object thereof is to determine the respiratory rate, heart rate / pulse rate, and their waveforms based on the signals from the bed leaving sensor and the biological information collection sheet. To provide a biological information monitoring system that attempts to obtain information more accurately, weights important events such as death, seizures, and leaving the bed, and provides an alert by discriminating these important events quickly and with less erroneous judgment. It is in.

In order to solve the above-mentioned problem, the biological information monitoring system according to claim 1, a leaving sensor installed under a mattress on which a user lays, a biological information collecting sheet installed under the mattress, A monitoring device that monitors the user's leaving / bed and the biological information based on a signal from a sensor and a signal from the biological information collection sheet, wherein the monitoring device includes the leaving sensor And the presence / absence of an important event is determined based on the mixed signal from the biological information collection sheet, and the presence / absence of the important event is determined based on the mixed signal from the biological information collection sheet. The monitoring device reports various biological information obtained by performing arithmetic processing on the mixed signal from the biological information collection sheet, and the monitoring device includes a bed leaving / bed, cardiopulmonary arrest, body movement, Based on each judgment of respiration and pulse, abnormal alarms are output in the order of getting out of bed / bed, cardiopulmonary arrest, body motion, respiration, and pulse, and lower alarms are not output when upper alarms are output. It is assumed that.
In the biological information monitoring system according to the second aspect, in the biological information monitoring system according to the first aspect, at the time of the alarm for getting out of bed / bed, the lower-level alarm is suppressed. When a higher-level alarm is output, a lower-level alarm is not output .
In the biological information monitoring system according to a third aspect, in the biological information monitoring system according to the second aspect , the processing time is set to a predetermined value when the cardiopulmonary arrest, body movement, respiration, and pulse are alarmed. Thus, when an upper-level alarm is output, a lower-level alarm is not output .
A biological information monitoring system according to a fourth aspect of the present invention provides a living body information monitoring system, comprising: a bed exit sensor installed under a mattress on which a user lies; a biological information collection sheet installed under the mattress; and a signal from the bed exit sensor. And a monitoring device that monitors biological information based on the signal from the biological information collection sheet. Based on the mixed signal from the biological information collection sheet, the presence / absence of an important event is determined based on the mixed signal from the biological information collection sheet. is intended to inform a variety of biological information obtained by processing the mixed signal from the seat, the living body information collecting sheet, inside a plurality of air chambers are provided communicates And a sensor module in which a sensor provided in the air chamber and a circuit for amplifying a signal from the sensor are provided on a substrate. A plate-like pressing member is provided on the user side surface of the collection sheet .
A biological information monitoring system according to a fifth aspect is the biological information monitoring system according to any one of the first to fourth aspects, wherein the monitoring device further performs apnea determination. It is a feature.
In the biological information monitoring system according to the sixth aspect, in the biological information monitoring system according to the fifth aspect, the apnea determination includes a signal having an amplitude greater than or equal to a predetermined threshold value in the mixed signal within a predetermined time. It is performed based on the frequency of appearance .
In the biological information monitoring system according to a seventh aspect of the present invention, in the biological information monitoring system according to any one of the first to sixth aspects, the determination on leaving the bed / on-bed is performed by turning on / off the leaving sensor. Of the signals, even if the detection time for detecting the off signal exceeds the predetermined false detection prevention time, the detection time for detecting the off signal exceeds the predetermined continuous release time without performing the release determination. is characterized in the this is to determine the continuous lifting abnormal if.
In the biological information monitoring system according to the eighth aspect, in the biological information monitoring system according to any one of the first to sixth aspects, the determination of leaving the bed or the presence of the bed is performed by turning on / off the leaving sensor. In the signal, the bed release detection is performed when the bed release detection time for detecting the off signal exceeds a predetermined erroneous detection prevention time, and the on signal of the on / off signal of the bed release sensor is detected. When the occupancy detection time exceeds a predetermined continuation occupancy time, it is determined that a continuous occupancy abnormality is determined .
In the biological information monitoring system according to a ninth aspect, in the biological information monitoring system according to any one of the first to sixth aspects, the determination of leaving the bed or the presence of the bed is performed by turning on / off the leaving sensor. Of the signals, even if the detection time for detecting the off signal exceeds the predetermined false detection prevention time, the detection time for detecting the off signal exceeds the predetermined continuous release time without performing the release determination. Is determined to be a continuous bed-abnormality abnormality, and if the bed-detection time during which the on / off signal of the bed-release sensor is detected exceeds a predetermined continuous bed-absence time, the continuous bed-abnormality abnormality is determined. Is determined .
Further, the biological information monitoring system according to claim 10, in the biological information monitoring system according to claim 8, is characterized in that it has selectably configure whether notification regarding upper SL lifting determination.
The biological information monitoring system according to claim 11 is the biological information monitoring system according to any one of claims 1 to 10 , wherein the monitoring device is a control device installed near the mattress and / or It is characterized by being a remotely located host computer .
A biological information monitoring system according to a twelfth aspect is the biological information monitoring system according to the eleventh aspect, wherein there are a plurality of the mattresses, and the control device is also installed corresponding to each mattress. All the control devices are connected to one remotely located host computer .
A biological information monitoring system according to a thirteenth aspect is the biological information monitoring system according to the twelfth aspect, wherein the biological information is obtained and reported by the control device, and the one remotely located host computer is provided. Thus, a list display of an overview of various types of biological information in each of the control devices and a detailed display of various types of biological information in one specific control device are switched and displayed .
Also, the biological information monitoring system according to claim 14 is the biological information monitoring system according to any one of claims 1 to 13, wherein the bed leaving sensor includes a pair of plate-like members installed in parallel. An elastic support member provided between the pair of plate members, and a bed exit detection switch installed between the pair of plate members and selectively pressed through the pair of plate members. It is characterized by comprising .
In the biological information monitoring system according to a fifteenth aspect, in the biological information monitoring system according to the fourteenth aspect, it is preferable that the leaving detection switch is provided with a protrusion that comes into contact with the plate-shaped member. It is a feature.
In the biological information monitoring system according to a sixteenth aspect, in the biological information monitoring system according to the fourteenth aspect , a predetermined gap is provided between the protrusion of the leaving bed detection switch and the plate member. It is characterized by the following.

According to the biological information monitoring system according to claim 1 of the present invention as described above,
A bed exit sensor installed under a mattress on which a user lies, a biological information collection sheet installed under the mattress, and the user based on a signal from the bed exit sensor and a signal from the biological information collection sheet. And a monitoring device that monitors biological information, wherein the monitoring device determines whether the user has left or occupied the bed based on a signal from the sensor. The presence / absence of an important event is determined based on the mixed signal from the biological information collection sheet, and when it is determined that the vehicle is in bed and no important event is present , various living bodies obtained by arithmetically processing the mixed signal from the biological information collection sheet are determined. The monitoring device notifies information based on each determination of bed-out / bed-up, cardiopulmonary arrest, body movement, respiration, and pulse. In this order, abnormal alarms are output in order, and when an upper-level alarm is output, lower-level alarms are not output.Thus, important events such as cardiopulmonary arrest and abnormal body movement can be quickly determined and alarmed. it can.
Further, according to the biological information monitoring system of the second aspect, in the biological information monitoring system of the first aspect, at the time of the alarm for leaving the bed or being in the bed, a process of suppressing a lower alarm is performed. Since the lower alarm is not output when the upper alarm is output, the above effect can be ensured .
According to the biological information monitoring system according to the third aspect, in the biological information monitoring system according to the second aspect, when the important event and the biological information are alarmed, the processing time is set to a predetermined value. When a higher-level alarm is output, a lower-level alarm is not output, so that the above effect can be ensured .
According to the biological information monitoring system of the fourth aspect, a bed exit sensor installed under a mattress on which a user lies, a biological information collection sheet installed under the mattress, A monitoring device that monitors biological information based on the signal and the signal from the biological information collection sheet, wherein the monitoring device includes a signal from the bed leaving sensor. And the presence / absence of an important event is determined based on the mixed signal from the biological information collection sheet. It reports various biological information obtained by arithmetically processing mixed signals from the collection sheet, and the biological information collection sheet is provided with a plurality of air chambers and has an inside. And a sensor module provided on a substrate with a sensor provided in the air chamber and a circuit for amplifying a signal from the sensor provided on the substrate. Since a plate-shaped pressing member is provided on the user-side surface of the biological information collecting sheet, biological information can be collected with high accuracy, and detection sensitivity can be increased .
According to the biological information monitoring system described in claim 5, in the biological information monitoring system according to any one of claims 1 to 3 , the monitoring device further performs apnea discrimination. In addition, it is possible to determine a breathing abnormality with higher accuracy and to issue an alarm .
According to the biological information monitoring system according to the sixth aspect, in the biological information monitoring system according to the fifth aspect, the apnea determination is a signal having an amplitude greater than or equal to a predetermined threshold for the mixed signal within a predetermined time. Is performed based on the frequency of occurrence of, so that the above effect can be further ensured.
According to the biological information monitoring system according to the seventh aspect, in the biological information monitoring system according to any one of the first to sixth aspects, the determination as to whether or not the user is getting out of bed is made by turning on / off the getting out sensor. Of the OFF signals, even if the detection time for detecting the off signal that has detected the off signal exceeds the predetermined erroneous detection prevention time, the release detection time for detecting the off signal does not exceed the predetermined continuous release time without performing the release determination. When it exceeds, it is determined that there is a continuous wake-up abnormality, so that the continuous wake-up abnormality can be reliably determined and an alarm can be issued .
According to the biological information monitoring system described in claim 8, in the biological information monitoring system according to any one of claims 1 to 6 , the determination as to whether or not the user leaves the bed is made by turning on / off the sensor. In the off signal, when the leaving detection time during which the off signal is detected exceeds a predetermined erroneous detection prevention time, it is determined that the person is getting out of bed, and the on signal of the on / off signal of the above leaving sensor is detected. When the presence detection time exceeds a predetermined continuous presence time, it is determined that there is a continuous presence abnormality . Therefore, it is possible to reliably determine the leaving of bed and the continuous presence abnormality and to issue an alarm.
According to the biological information monitoring system according to the ninth aspect, in the biological information monitoring system according to any one of the first to sixth aspects, the determination as to whether or not the user leaves the bed is made by turning on / off the sensor. Of the OFF signals, even if the detection time for detecting the off signal that has detected the off signal exceeds the predetermined erroneous detection prevention time, the release detection time for detecting the off signal does not exceed the predetermined continuous release time without performing the release determination. When it exceeds, it is determined that there is a continuous wake-up abnormality, and when the occupancy detection time for detecting the ON signal of the ON / OFF signal of the wake-up sensor exceeds a predetermined continuous occupancy time, the continuous wake-up time is determined. Since the abnormality is determined to be abnormal, it is possible to reliably determine and alert the continuous bed leaving abnormality and the continuous bed abnormality .
According to the biological information monitoring system according to the tenth aspect, in the biological information monitoring system according to the eighth aspect , the presence / absence of the notification regarding the wake-up determination can be selected. In this case, it is possible to issue an alarm only for the continuous in-bed abnormality and not to issue an alarm only when the user leaves the bed .
According to the biological information monitoring system according to claim 11, in the biological information monitoring system according to any one of claims 1 to 10 , the monitoring device is a control device installed near the mattress; Alternatively, since the host computer is remotely located, it is possible to provide an easy-to-use system with a large margin in the system configuration .
According to the biological information monitoring system of the twelfth aspect, in the biological information monitoring system of the eleventh aspect , there are a plurality of the mattresses, and the control device is also installed corresponding to each mattress, Since all of these control devices are connected to one remotely located host computer, centralized management can be performed by one host computer .
According to the biological information monitoring system according to the thirteenth aspect, in the biological information monitoring system according to the twelfth aspect , the biological information is obtained and notified by the control device, and the one host is located remotely. The computer is configured to switch between displaying a summary list of various types of biological information in each of the control devices and a detailed display of various types of biological information in one specific control device. Monitoring becomes possible .
Further, according to the biological information monitoring system according to claim 14, in the biological information monitoring system according to any one of claims 1 to 13, the leaving sensor is a pair of plate-like members installed in parallel. An elastic support member provided between the pair of plate members, and a bed exit detection switch installed between the pair of plate members and selectively pressed through the pair of plate members, Therefore, the detection range can be expanded without increasing the size of the leaving-bed detection switch itself .
According to the biological information monitoring system according to the fifteenth aspect, in the biological information monitoring system according to the fourteenth aspect, since the leaving-bed detection switch is provided with a protrusion that comes into contact with the plate-shaped member. , Thereby increasing the detection sensitivity .
In the biological information monitoring system according to a sixteenth aspect, in the biological information monitoring system according to the fourteenth aspect , a predetermined gap is provided between the protrusion of the leaving bed detection switch and the plate member. Therefore, the bed leaving detection switch is not inadvertently pressed through the protrusion, thereby preventing erroneous detection and improving durability .

FIG. 1 is a diagram illustrating a first embodiment of the present invention, and is a side view illustrating an overall configuration of a biological information monitoring system. FIG. 2A is a perspective view of the control device as viewed from above, and FIG. 2B is a perspective view of the control device as viewed from below. FIG. 1 is a diagram illustrating a first embodiment of the present invention, and is a functional block diagram of a biological information monitoring system. FIG. 2 is a view showing the first embodiment of the present invention, and is a plan view showing a bed leaving sensor. FIG. 5A is a view showing a first embodiment of the present invention, FIG. 5A is a cross-sectional view taken along a line VV in FIG. 4, and shows a state in which a bed leaving detection switch is not pressed, and FIG. It is sectional drawing which shows the state which the detection switch was pressed. FIG. 2 is a diagram showing the first embodiment of the present invention, and is a plan view of a biological information collecting sheet. FIG. 7 is a view showing the first embodiment of the present invention, and is a sectional view taken along line VII-VII of FIG. 6. FIG. 8A is a perspective view of a sensor module used for a biological information collecting sheet, and FIG. 8B is an exploded view of a sensor module used for a biological information collecting sheet. FIG. 8C is a perspective view (excluding a heat-shrinkable tube that covers the sensor module main body), and FIG. 8C is an enlarged cross-sectional view illustrating a cable penetration portion of the biological information collecting sheet. FIGS. 9A and 9B are diagrams showing a first embodiment of the present invention, in which FIG. 9A shows the first page of a setting screen of the control device, and FIG. 9B shows the second page of the setting screen of the control device. FIG. FIG. 4 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating a third page of a setting screen of the control device. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating a normal operation display screen of the control device. FIG. 12A is a diagram illustrating a first embodiment of the present invention, in which FIG. 12A is a graph showing mixed signals output from a biological information collection sheet, and FIG. FIG. 12C is a graph showing respiratory data extracted by processing, and FIG. 12C is a graph showing pulse data extracted by performing arithmetic processing on the mixed signal of FIG. FIG. 13A is a diagram showing a first embodiment of the present invention. FIG. 13A is a graph showing mixed signals output from a biological information collecting sheet when a body pressure dispersion mattress is used, and FIG. FIG. 13C is a graph showing respiratory data extracted from the mixed signal output from the biological information collecting sheet when the pressure distribution mattress is used, and FIG. 13C is output from the biological information collection sheet when the body pressure distribution mattress is used. 13D is a graph showing pulse data extracted from mixed signals, FIG. 13D is a graph showing mixed signals output from a biological information collection sheet when a normal mattress is used, and FIG. FIG. 13F is a graph showing respiratory data extracted from the mixed signal output from the biological information collection sheet in the case where 13G is a graph showing pulse data extracted from the mixed signal output from the biological information collection sheet when used; FIG. 13G is a graph showing mixed signals output from the biological information collection sheet when using the air mattress; FIG. 13H is a graph showing respiratory data extracted from a signal output from the biological information collection sheet when the air mattress is used, and FIG. 13I is a graph showing the respiration data when a normal mattress is used. It is a graph which shows the pulse data extracted from the output mixed signal. FIGS. 14A and 14B are diagrams showing a first embodiment of the present invention, in which FIG. 14A is a graph showing mixed signals output from a biological information collection sheet, and FIG. FIG. 14 (c) is a graph showing the respiratory data extracted by the respiration data and the respiratory rate counted by the respiratory data. FIG. 14 (c) is a graph showing the respiratory data measured by the respiratory band and the respiratory rate counted by the respiratory data. FIG. 14D is a graph showing pulse data extracted by processing the mixed signal of FIG. 14A, and a pulse rate counted based on the pulse data. FIG. FIG. 14 (f) is a graph showing pulse data measured by a pulse wave meter and a pulse rate counted based on the pulse data. FIG. 14 (f) shows the relationship between respiration data extracted by processing mixed signals and respiration data based on respiration bands. Correlation coefficient Is a diagram showing the correlation coefficient between the pulse data according to the pulse data and the photoelectric pulse wave detector extracted by processing the mixed signal. FIGS. 15A and 15B are diagrams showing a first embodiment of the present invention, in which FIG. 15A is a graph showing the signal level of a bed leaving sensor when the user is in a supine position, and FIG. FIG. 15C is a graph showing the signal level of the bed leaving sensor when the user is in the supine position, and FIG. 15C is a graph showing the signal level of the bed leaving sensor when the user is in the left lateral position. () Is a graph showing the signal level of the bed leaving sensor when the user is in the right lateral recumbent position. FIG. 5 is a diagram illustrating a first embodiment of the present invention, wherein the type of mattress and the body position of a user are changed for each place where a bed exit sensor is installed by detecting whether or not the bed exit sensor can detect the bed exit / in-bed state. 4 is a table showing the results of measurement. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating an individual setting screen of the host computer. FIG. 18A is a view showing a first embodiment of the present invention, in which FIG. 18A is a view showing a list screen of a host computer when there is no abnormality during normal operation, and FIG. FIG. 7 is a diagram showing a list screen when an abnormality is notified during a normal operation. FIG. 4 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating a detailed screen of the host computer, which is a screen displaying individual data of an arbitrary control device. FIG. 4 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating a leaving / bed determination process. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating cardiopulmonary arrest determination processing. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating a body motion determining process. FIG. 4 is a flowchart illustrating a respiration measurement process according to the first embodiment of the present invention. FIG. 4 is a flowchart illustrating a pulse measurement process according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating a continuous bed leaving determination process. FIG. 4 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating a process of determining whether a person is absent from the bed or stays in the bed, or continuously stays in the bed. FIG. 4 is a diagram illustrating the first embodiment of the present invention and is a flowchart illustrating a continuous leaving-bed determination process and a continuous-bed determination process. FIG. 3 is a diagram illustrating the first embodiment of the present invention, and is a flowchart illustrating apnea determination processing. FIG. 29 (a) is a diagram showing a first embodiment of the present invention, wherein FIG. 29 (a) is a graph showing mixed signals output from a biological information collection sheet when a user breathes, and FIG. 29 (b) is FIG. FIG. 29 (c) is a graph showing the mixed signal output from the biological information collection sheet when the user does not breathe, and FIG. 29 (d) is a graph showing the mixed signal output from the biological information collection sheet when the user does not breathe. It is the graph which converted the mixed signal of (c) into the absolute value. FIG. 9 is a flowchart illustrating a priority order of alarms according to a second embodiment of the present invention. It is a figure showing a 3rd embodiment of the present invention, and is a top view of a living body information collection sheet. FIG. 32 is a view illustrating a third embodiment of the present invention, and is a cross-sectional view along XXXII-XXXII of FIG. 31. It is a figure showing a 4th embodiment of the present invention, and is a top view of a living body information collection sheet.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The biological information monitoring system 1 according to the first embodiment has a configuration as shown in FIG.
First, there are a plurality of beds ₃ 1 to 3 _n. These include a plurality of beds ₃ 1 to 3 _n, the mattress ₅ 1 to 5 _n are respectively installed. The aforementioned bed ₃ 1 to 3 _n mattress ₅ 1 on to 5 _n of the user ₇ 1 to _7-n lying respectively.

Further, under the above-mentioned mattress ₅ 1 to 5 _n of the bed ₃ 1 to 3 _n, and lifting the sensor ₁₁ 1 to 11 _n, biometric information collection sheet ₁₃ 1 to 13 _n, are installed respectively.
In the vicinity of the bed ₃ 1 to 3 _n, the control device ₁₅ 1 to 15 _n are respectively installed. These control devices ₁₅ 1 to 15 _n, pushbutton device ₁₇ 1 to 17 _n for nurse call is connected.
The host computer 19 is installed, by the host computer 19, the biological information sent from the control device ₁₅ 1 to 15 _n in the control and the control device ₁₅ 1 to 15 _n, for example, the radio communication Collect and manage through
In the present embodiment, a case where n = 5 will be described as an example.

Hereinafter, the configuration of each unit will be described in detail.
First, the configuration of the control device ₁₅ 1 to 15 _n, will be described by way of control device 15 ₁ as an example.
The control device 15 ₁ has a look as shown in Figure 2. First, there is a housing 21, and a display with a touch panel 23 is installed on the front surface (the lower left surface in FIG. 2A). A power / interruption push button 25 is provided on the lower side of the display with a touch panel 23 in FIG. 2A. By the operation of the power supply / interruption pushbutton 25 performs the power on / off and control device 15 _1, the suspend / resume process.

As shown in FIG. 2A, a biological information data output terminal 27 and a bed separation sensor data output terminal 29 are provided on the right side surface (the right side surface in FIG. 2) of the housing 21. As shown in FIG. 2B, a software update terminal 31 is provided on the left side surface (the left side surface in FIG. 2) of the housing 21. A biological information data input terminal 33, a leaving sensor data input terminal 35, and a power supply terminal 37 are provided on the bottom surface (the lower surface in FIG. 2) of the housing 21. The biological information data input signal cables 135 ₁ to the terminal 33 is connected, the signal cable 136 ₁ with the lifting sensor data input terminal 35 is connected.
In the case of this embodiment, since during the control device 15 ₁ and the host computer 19 has a configuration for transmitting and receiving data wirelessly, lifting the sensor data output terminal and the biometric information data output terminal 27 29 is not used.

Further, the control unit 15 _1, as shown in FIG. 3, there are measuring means 41, with the signal from the lifting sensor 11 ₁ is input to the measuring unit 41, from the living body information collecting sheet 13 ₁ Mixed signals are input. The mixed signal is user 7 ₁ heartbeat, breathing, in which body motion, pulse, vibration due to an equal mixed.
To the control device 15 _1, has a signal processing unit 43, by the signal processing unit 43, the arithmetic processing of the filtering process such as the mixed signal is subjected, signals only waveform is extracted by the respiratory waveform by pulse Only the extracted signal is generated.

The above control device 15 ₁ is abnormal determination means 45. The abnormality judgment means 45, the signal from the lifting sensor 11 ₁ via the measuring means 41, together with mixed signals from the living body information collecting sheet 13 ₁ is input, the processing through the signal processing means 43 The processed signal is input. Then, the abnormality determination means 45 determines abnormalities of getting out of bed / being in bed (getting out of bed, continuous getting out of bed, continuous getting out of bed), abnormalities of heartbeat, abnormalities of body movement, abnormalities of respiration, and abnormalities of pulse. . To the control device 15 _1, there is a setting managing unit 47. The setting of the abnormality determination unit 45 is performed by the setting management unit 47.

To the control device 15 _1, there is a display unit 49. The display means 49 indicates the presence / absence of abnormalities of getting out / bed (absent, continuous getting out of bed, continuous getting out of bed), abnormalities of heartbeat, abnormalities of body movement, abnormalities of respiration, abnormalities of pulse, and the mixed signals. A waveform, a waveform indicating respiration, a waveform indicating a pulse, and the like are displayed. Further, there is a touch panel 51 through which the operation of the setting management means 47 and the like is performed.
The display with a touch panel 23 is such that the touch panel 51 is superposed on the surface of the display means 49.

Further, in the above control device 15 ₁ it is notification means 53. The notification means 53 reports abnormalities of getting out of bed / in bed (absent bed, continuous getting out of bed, continuous getting out of bed), abnormal heartbeat, abnormal body movement, abnormal breathing, abnormal pulse, for example, nurse call, telephone call , An alarm sound.
The notification in the present invention is a concept including both the display means 49 and the notification means 53 described above.
Further, the control device 15 _1, Wireless communication unit 55. Signal from ambulation sensor 111 obtained via the measuring means 41, mixed signals from the living body information collecting sheet 13 _1, the notification by the notification means is transmitted to the host computer 19 via the wireless communication means 55 You. Conversely, signals from the host computer 19 is received by the control device 15 ₁ via the wireless communication unit 55.
The configuration of the other control devices ₁₅ 2 to 15 _n, the relationship with the other control units ₁₅ 2 to 15 _n and the host computer 19 have the same configuration.

Next, the configuration of the host computer 19 will be described. As shown in FIG. 3, the host computer 19 has a wireless communication unit 61. Via the wireless communication unit 61, the control device ₁₅ 1 to 15 signals from the lifting sensor ₁₁ 1 to 11 _n via the _n, mixed signals from the living body information collecting sheet ₁₃ 1 to 13 _n, the control device 15 ₁ which receives a broadcast signal from to 15 _n, and transmits various control signals to the control device ₁₅ 1 to 15 _n.

The host computer 19 has signal processing means 63. The signal processing means 63 performs arithmetic processing such as filtering on the received mixed signal to separate and generate a waveform signal due to respiration and a waveform signal due to a pulse. Is done.
Abnormality determination means 65 is provided in the host computer 19. This abnormality judgment means 65, the signal from the lifting sensor ₁₁ 1 to 11 _n via the wireless communication unit 61, together with the multiplexed signal from the living body information collecting sheet ₁₃ 1 to 13 _n are input, the signal processing means 63 A waveform signal due to respiration and a waveform signal due to a pulse are input via. The abnormality determination means 65, the signal from the lifting sensor ₁₁ 1 to 11 _n thus received, based on the mixed signal from the living body information collecting sheet ₁₃ 1 to 13 _n, lifting / the bed of abnormality (lifting, continuous lifting abnormal , Abnormal in bed), abnormal heartbeat, abnormal body movement, abnormal respiration, abnormal pulse.
The host computer 19 has a setting management unit 67. The setting of the abnormality determining means 65 is performed by the setting managing means 67.
Incidentally, the host computer 19 side, by performing the setting of the abnormality judgment means 65 via the setting management unit 67, the information is transmitted to the control device 5 ₁ to 5 _n. Conversely, in each control device 5 ₁ to 5 _n, by performing the setting of the abnormality judgment means 45 by the respective setting management unit 47, the information is also transmitted to the host computer 19. In other words, the host computer 19, even if either the setting of each control device 5 ₁ to 5 _n is shared by both the information.

The host computer 19 has display means 69. This display unit 69, the state of the user ₇ 1 to _7-n all (e.g., respiration, pulse rate, etc.) both display is performed, the user ₇ 1 to _7-n, respectively lifting / the bed abnormal (Wake-up, continuous wake-up abnormalities, continuous wake-up abnormalities), heartbeat abnormalities, body movement abnormalities, respiratory abnormalities, pulse abnormalities, waveforms based on the mixed signal, waveforms due to respiration, waveforms due to pulse, and the like are displayed.
Further, there is an input means 71. The input unit is, for example, a keyboard or a mouse, and can operate the setting management unit 67 and the like.

Further, the host computer 19 has a notifying unit 73. The informing unit 73 reports abnormalities of getting out of bed / in bed (absent, continuous getting out of bed, abnormal in bed getting out of bed), abnormalities of heartbeat, abnormalities of body movement, abnormalities of respiration, abnormalities of pulse, for example, by sending an e-mail or making a telephone call. , An alarm sound.
The notification in the present invention is a concept including both the display means 69 and the notification means 73 described above.

Next, the configuration of the lifting sensor ₁₁ 1 to 11 _n, the lifting sensor 11 ₁ by way of example, be described with reference to FIG. 4, FIG.
First, there are plate members 81a and 81b installed in parallel. These plate members 81a and 81b are made of, for example, polycarbonate. Support members 83a to 83f made of elastic members are provided between the plate-like members 81a and 81b, at four corners and at two intermediate positions. These support members 83a to 83f are made of, for example, urethane.

Further, a bed leaving detection switch 85 is provided between the plate members 81a and 81b and at the center. The leaving-bed detection switch 85 is fixed to the plate-like member 81b via a raising member 87.
The leaving-of-bed detection switch 85 is, for example, between a switch housing 91 made of rubber, two electrodes 93a and 93b installed inside the switch housing 91, and between the two electrodes 93a and 93b. Insulating support members 95, 95 installed at both ends in the width direction (the left-right direction in FIG. 5A). Further, a projection 97 is formed on the plate-like member 81a side (the upper side in FIG. 5A) of the switch housing 91. The projection 97 is in contact with the plate member 81a.
It is also conceivable that a slight gap is positively provided between the projection 97 and the plate member 81a, thereby preventing erroneous detection and improving durability.

The lifting sensor 11 _1, when pressed from the upper side middle FIG. 5 (a), the said lifting detection switch 85 via the plate-like member 81a is pressed, the electrode 93a is pressed or deformed together with the switch housing 91 Then, the electrode 93a and the electrode 93b come into contact with each other and are energized. Thereby detecting the lifting / the bed of the user _71. That is, in the state of FIG. 5A, the bed exit detection switch 85 is turned off and it is determined that the bed is exited. In the state of FIG. 5B, the bed exit detection switch 85 is turned on and the bed exit is detected. Is determined.
Further, the cable 136 ₁ is pulled out already mentioned from the lifting sensor 11 _1.
The other lifting sensor ₁₁ 2 to 11 _n also have the same configuration.

Next, the configuration of the living body information collecting sheet ₁₃ 1 to 13 _n, the living body information collecting sheet 13 ₁ by way of example, be described in detail.
In the living body information collecting sheet 13 _1, first, as shown in FIGS. 6 and 7, there is a bag 101. As shown in FIG. 7, the bag body 101 is formed in a sheet shape as a whole by bonding two sheet members 103a and 103b together.
As shown in FIG. 6, a plurality of (two in the case of the first embodiment) air chambers 105, 105 are provided in the bag body 101, and these air chambers 105, 105 , A plurality of (six in the case of the first embodiment) communication paths 107, 107, 107, 107, 107, 107. The bag 101 is provided with an air injection port 109 with a check valve.

  The sensor module 111 is sealed in the bag body 101. As shown in FIG. 8A, the sensor module 111 includes a sensor module main body 113 and a heat-shrinkable tube 115 that covers the surface of the sensor module main body 113. The heat-shrinkable tube 115 covers the sensor module main body 113 in a state where the front and rear ends (both ends in the direction from the lower left to the upper right in FIG. 8A) are opened.

  The sensor module body 113 has the following configuration. As shown in FIG. 8B, there are a lower case 117 having a substantially U-shaped cross section and an upper case 119 having a substantially inverted U-shaped cross section. The upper case 119 is fitted on the upper side of the lower case 117 by engaging the upper case 119 from the outside. When the upper case 119 is placed on the lower case 117, the front and rear ends (both ends in the direction from the lower left to the upper right in FIG. 8A) are open.

Inside the lower case 117, a substrate 125 on which a pyroelectric infrared sensor 121, an amplifier circuit for amplifying the output of the pyroelectric infrared sensor 121, and a plurality of electronic components 123 constituting a filter circuit and the like are mounted. Is installed. The pyroelectric infrared sensor 121 detects a minute temperature change around the sensor module 111 due to the flow of air in the bag body 101 through a change in the amount of infrared rays. That is, when a small temperature change occurs due to the flow of air around the sensor module 111, the amount of infrared rays changes. The pyroelectric infrared sensor 121 detects a change in the amount of infrared light. In the pyroelectric infrared sensor 121, the distribution of electrons in the pyroelectric body (not shown) changes due to the changing weak infrared light. Is detected. Further, the above-mentioned pyroelectric infrared sensor 121 is suitable for the detection for sensitive at low frequencies, the user 7 ₁ to _7-n of the heart beat and respiration.

A plurality of (three in this embodiment) lead wires 127 are connected to the rear end of the substrate 125 (upper right in FIG. 8B). The lead wire 127 includes a conductor 129 and a covering tube 131. These three leads 127 are coated with a coating tube 133, thereby being configured cable 135 ₁ already mentioned. Further, the cable 135 _1, near the opening of the substrate 125 side of the cover tube 133 (FIG. 8 (b) Medium lower left side) are bundled by the heat shrinkable tube 137.
Incidentally, as the cable 135 _1, for example, a commercially available modular cable is used.

Next, the sealing process will be described. Before describing the details of the sealing process, a brief description will be given of the circumstances in which the present applicant has reached the sealing process. An air leak was confirmed as a result of a load resistance test performed using the prototype before the sealing treatment. Accordingly, the present patent applicant, assuming the air leakage through the penetration portion of the bag body 101 of the cable 135 _1, performs a predetermined encapsulation process there.
However, this still did not completely prevent air leakage.
Accordingly, the present patent applicant repeated further experiments, the cable 135 ₁ covering tube 133, and was led to check the air leakage through the gap between the end of the coating tube 131 leads 127. Therefore, they cable 135 ₁ covering tube 133, and were subjected to predetermined sealing treatment even for clearance of the end of the coating tube 131 leads 127.
Hereinafter, sequentially described from the sealing treatment applied to the penetrating portion of the bag body 101 of the cable 135 _1.

First, as shown in FIG. 8, the heat shrinkable tube 139 is covered in a portion penetrating the outer periphery of the receptacle 101 of the cable 135 _1. By thermally welded in a state of covering the heat-shrinkable tube 139, so as to prevent air leakage between the cable 135 ₁ and the sheet material 103a, 103b. In the case of this embodiment, further, by providing the adhesive layer on the inside of the heat shrinkable tube 139, so as to completely seal the gap between the heat shrinkable tube 139 and the cable 135 ₁ ing.
Further, in the case of this embodiment, as shown in FIG. 8C, the heat-shrinkable tube 139 is interposed between the reinforcing sheets 141a and 141b. Further, the sheet material 103a is on the anti-heat-shrinkable tube 139 side (upper middle in FIG. 8C) of the reinforcing sheet 141a, and the anti-heat-shrinkable tube 139 side (lower middle in FIG. 8C) of the reinforcing sheet 141b. ) Is the sheet material 103b.
And these the sheet material 103a, 103b, the reinforcing sheet 141a, 141b, the heat shrinkable tube 139, the adhesive layer, by heat welding together the cables 135 _1, by the cable 135 ₁ of the receptacle 101 The penetrated part is sealed.
The reinforcing sheets 141a and 141b have the same structure and material as the sheet materials 103a and 103b.

Incidentally, if slightly additional remark about sealing portion to be penetrated by the cable 135 ₁ of the receptacle 101, initially, the sheet material 103a covered with a heat shrinkable tube 139 which is not provided with the adhesive layer on the cable 135 ₁ , 103b. However, still, it has not been possible to completely prevent air leakage through the penetration portion of the cable 135 _1. Specifically, one in which air leakage through the gap between the cables 135 ₁ and the heat shrinkable tube 139 has occurred. Therefore, an adhesive layer is provided on the inner peripheral side of the heat-shrinkable tube 139. Whereby, in which it is possible to completely prevent air leakage at the penetrating portion of the cable 135 _1.
Moreover, the sealing of the portion to be penetrated by the cable 135 ₁ of the receptacle 101 may also use an adhesive such as heat-bonded to the other heat welding.

Next, the cable 135 ₁ covering tube 133, and will be described sealing treatment in the gap of the end of the coating tube 131 leads 127. As shown in FIG. 8 (b) compacting, connection to the board 125 of the cable 135 _1, i.e., the range that leads to the coating tube 133 from the exposed portion of the conductor 129 of each lead 127 by an adhesive 143 Have been. Thus, the cable 135 ₁ covering tube 133 and the air leaks through the gap at the end of the coating tube 131 leads 127, i.e., between the plurality of lead wires 127 and the plurality of lead wires 127 and the coating Air leakage through a gap between the tube 133 and air leakage through a gap between the conductor 129 of each lead wire 127 and the coating tube 131 are prevented.
The adhesive 143 has high gas barrier properties, such as heat bond, resin, and silicon.
Incidentally, biometric information collection sheet ₁₃ 2 to 13 _n is also the same configuration.
Incidentally, Japanese Patent Application Laid-Open No. 2014-64714 by the present applicant discloses an invention relating to a biological information collection sheet.

Next, the operation of the biological information monitoring system 1 according to the first embodiment will be described.
First, a description will be given of the operation of lifting the sensor ₁₁ 1 to 11 _n.
If the user ₇ 1 to _7-n is lying ₃ 1 to 3 _n mattress ₅ 1 on to 5 _n bed the lifting sensor ₁₁ 1 to 11 _n is pressed from the upper middle FIG 5 (a). At this time, the bed leaving detection switch 85 is pressed via the plate member 81a, and the electrode 93a is pressed and deformed together with the switch housing 91, so that the electrode 93a and the electrode 93b come into contact with each other and turn on. Become. Accordingly, the electrodes 93a, is between 93b is energized to detect the the bed of the user ₇ 1 to _7-n.
If the user ₇ 1 to _7-n is not lying on the mattress ₅ 1 on to 5 _n of the bed ₃ 1 to 3 _n is the electrode 93a is elastically restored, the electrodes 93a, 93 b is a non-contact is parallel to It becomes a state and becomes "off". In this case, the electrode 93a, is between 93b becomes non-energized state to detect the lifting of the user ₇ 1 to _7-n. The detection signal is inputted to the control device ₁₅ 1 to 15 _n via the cable ₁₃₆ 1 _{~136 n.}

Next, the operation of the living body information collecting sheet ₁₃ 1 to 13 _n.
Due to the slight operation of breathing or the like of the user 7 ₁ to _7-n, the bag 101 is pressed, whereby the air flow is generated in the bag body 101. As a result, an air flow also occurs around the sensor module 111, and the temperature of the air around the sensor module 111 changes due to the air flow. The amount of infrared light generated by the temperature change changes, and the change in the amount of infrared light is detected by the sensor module 111. Thereby, the user 7 ₁ to _7-n of the heart, the body movement, respiration, pulse, biometric information etc. is to be detected. The output signal from the sensor module 111 is input to the control device ₁₅ 1 to 15 _n via the cable ₁₃₅ 1 to 135 _n.

Next, the operation of the sealing portion will be described.
In the portion of the bag 101 penetrated by the cables 135 _{1 to} 135 _n , the sheet materials 103a and 103b, the reinforcing sheets 141a and 141b, the heat-shrinkable tube 139, the adhesive layer, and the cable 135 are heat-welded together. Thus, air leakage from between the cables 135 _{1 to} 135 _n and the sheet materials 103a and 103b is effectively prevented.
In particular, in the above cable ₁₃₅ 1 to 135 _n for heat-shrinkable tube 139 with an adhesive layer on the inside is covered by the adhesive layer of the cable ₁₃₅ 1 to 135 _n and the heat shrinkable tube 139 The gap between them is surely closed, and air leakage through this gap is reliably prevented.
Also, since the connection portion of the cables 135 _{1 to} 135 _{n to} the substrate 125, that is, the range from the exposed conductor 129 of each lead wire 127 to the covering tube 133 is solidified by the adhesive 143, Air leakage from the bag body 101 through the gap between the coating tube 133 of the cables 135 _{1 to} 135 _n and the end of the coating tube 131 of the lead wire 127 is reliably prevented.

Next, the operation of the control device ₁₅ 1 to 15 _n.
First is a description of the operation of the setting management unit 47 of the control device ₁₅ 1 to 15 _n. The setting management means 47 is operated via the touch panel 51 via a setting screen as shown in FIGS. 9A, 9B and 10. The setting screens shown in FIGS. 9A, 9B, and 10 are sequentially switched by operating the switching button 151.

Further, the user sets his / her own device number by inputting the device number in the device number column 153.
When the device number column 153 of the touch panel 51 is operated, a software keyboard (not shown) is displayed on the display means 49, and numerals and characters are input via the software keyboard. In the following various setting fields, numbers and characters are input via the same software keyboard.
Further, lifting mode button 157a, the watching mode button 157b, the lifting-watch mode button 157c, the operation mode of the control device ₁₅ 1 to 15 _n, "lifting mode", "watching mode", and "lifting-watch mode" You can switch to Details of these operation modes will be described later.

  Further, the range of the respiratory rate to be regarded as normal respiration (for example, 8 to 28 times / min) is set by the normal respiratory rate setting column 159. In addition, the respiratory abnormality continuous time setting field 161 sets the respiratory abnormality continuous time (for example, 120 seconds).

  The normal pulse rate setting field 163 sets a pulse rate range (for example, 40 to 120 times / minute) that is regarded as a normal pulse. Further, the pulse abnormal continuous time (for example, 120 seconds) is set in the pulse abnormal continuous time setting column 165.

  In addition, the leaving time setting column 167 sets the leaving time (for example, 2 seconds) when the leaving determination is made. The continuous staying time setting field 169 sets a continuous staying time (for example, 1440 minutes) for performing the notification. When the continuous staying time for performing the notification is set to “0”, the notification is set not to be performed. Further, the presence / absence of notification about leaving the bed can be set by the leaving-of-bed notification setting button 173a and the leaving-of-bed notification release button 173b. Further, a continuous leaving time (for example, 1440 minutes) for performing the notification is set in the continuous leaving time setting column 171. Further, the magnification (for example, 1) of the mixed signal displayed on the display unit 49 can be set by the sensor waveform magnification setting field 175. Further, the respiratory waveform magnification setting field 177 allows the user to set the magnification (for example, 1) of the respiratory waveform displayed on the display unit 49. The pulse waveform magnification setting field 179 allows the user to set the magnification (for example, 1) of the pulse waveform displayed on the display unit 49.

  As shown in FIG. 10, the wireless LAN on button 185a and the wireless LAN off button 185b can be used to switch the wireless communication unit 55 between valid and invalid. Further, a setting screen of the wireless communication unit 55 (not shown) can be called by the wireless LAN setting button 187.

Further, by pressing the back button 191 discards the changed contents, without setting the control device 15 ₁ to 15 _n, the process proceeds to the normal operation display screen described later. Further, by pressing the decision button 191, after the setting of the control device 15 ₁ to 15 _n with your changes, shifts to the normal operation display screen described later.

Further, the control device ₁₅ 1 to 15 _n, is in operation, as shown in FIG. 11, and displays the normal operation display screen 201. The normal operation display screen 201 is provided with a respiratory waveform display unit 203 and a pulse waveform display unit 205. Further, the normal operation display screen 201 is provided with an operation mode display section 207 and a control device number display section 209. The normal operation display screen 201 is provided with a setting button 211. When the setting button 211 is pressed, the screen shifts to the setting screen described above. The normal operation display screen 201 is provided with a history button 213, and when the history button 211 is pressed, the screen shifts to a history display screen (not shown).
In the “watching mode”, “watching” of the operation mode display unit 207 is lit, in the “getting out mode”, “bed off” of the operation mode display unit 207 is lit, and in the “watching / getting out mode”, the operation mode Both “watching” and “leaving out” of the display unit 207 are turned on.

Next, the operation of the signal processing means 43 of the control device ₁₅ 1 to 15 _n. The signal processing means 43 performs a calculation process of filtering such as a mixed signal from the living body information collecting sheet 13 ₁ to 13 _n, as shown in FIG. 12, and extracts the signal of the breath only, a signal pulse only.
FIG. 12 (a) is a diagram showing the time change of the sensor output (mV, mixed signal) with time (sec) on the horizontal axis and sensor output (mV, mixed signal) on the vertical axis. FIG. 12 (b) is a diagram showing the time change of the processed signal (mV, respiratory processing waveform) by taking the time (second) on the horizontal axis and the processing signal (mV, respiratory processing waveform) on the vertical axis. (C) is a diagram showing the time change of the processed signal (mV, pulse processed waveform) with time (sec) on the horizontal axis and the processed signal (mV, pulse processed waveform) on the vertical axis.

As shown in FIG. 13, according to the biological information collecting sheets 13 _{1 to} 13 _n and the signal processing means 43, even if any of a body pressure dispersion mattress (made of urethane), a polyester mattress, and an air mattress is used , Respiration and pulse are detected.
In FIG. 13A, the horizontal axis represents time (seconds), the vertical axis represents sensor output (mV, mixed signal), and the time of sensor output (mV, mixed signal) when a body pressure dispersion mattress is used. FIG. 13B shows time (seconds) on the horizontal axis and respiration (mV) on the vertical axis, and shows the time change of respiration (mV) when a body pressure dispersion mattress is used. FIG. 13 (c) shows time (seconds) on the horizontal axis and pulse (mV) on the vertical axis, and shows the time change of the pulse (mV) when a body pressure dispersion mattress is used. FIG.
FIG. 13D shows time (seconds) on the horizontal axis, sensor output (mV, mixed signal) on the vertical axis, and changes over time of the sensor output (mV, mixed signal) when a polyester mattress is used. FIG. 13 (e) shows time (seconds) on the horizontal axis and breathing (mV) on the vertical axis, and shows the time change of breathing (mV) when a polyester mattress is used. FIG. 13 (f) is a diagram showing time (seconds) on the horizontal axis and pulse (mV) on the vertical axis, showing the time change of the pulse (mV) when a polyester mattress is used. .
FIG. 13H shows the time (seconds) on the horizontal axis and the sensor output (mV, mixed signal) on the vertical axis, and shows the time change of the sensor output (mV, mixed signal) when an air mattress is used. FIG. 13 (i) shows time (seconds) on the horizontal axis and breathing (mV) on the vertical axis, and shows the time change of breathing (mV) when an air mattress is used. FIG. 13 (j) is a diagram showing time (seconds) on the horizontal axis and pulse (mV) on the vertical axis, showing the time change of the pulse (mV) when an air mattress is used.

According to the biological information collecting sheets 13 _{1 to} 13 _n and the signal processing unit 43, as shown in FIGS. 14B and 14C, the same accurate as the respiratory band as another biological measuring device. Respiratory rate is obtained. In addition, as shown in FIGS. 14D and 14E, the same accurate pulse rate as that of a photoplethysmograph, which is another biometric device, can be obtained.
Further, as shown in FIG. 14 (f), the correlation coefficient between signals according to the living body information collecting sheet 13 ₁ to 13 _n and the signal processing means 43 by the respiration process signals and other respiratory band is biometric device 0.86, indicating a high correlation between the above-mentioned respiratory processing signal and a signal based on a respiratory band as another biometric device. The correlation coefficient between the pulse processing signal from the biological information collection sheet 13 and the signal processing means 43 and the signal from the photoelectric pulse wave meter as another living body measuring device is 0.83. The correlation with the signal from the photoelectric pulse wave meter, which is a biological measuring device, is also high.
FIG. 14 (a) is a diagram showing time (seconds) on the horizontal axis and sensor output (mV, mixed signal) on the vertical axis, showing the time change of the sensor output, and FIG. FIG. 14 (c) shows time (seconds) on the horizontal axis, time (seconds) on the horizontal axis, and time (seconds) on the vertical axis. It is the figure which took the output (mV) of a respiration band, and showed the time change of the sensor output of a respiration band. FIG. 14D is a diagram showing time (seconds) on the horizontal axis and pulse (mV) on the vertical axis, showing the time change of the pulse (mV), and FIG. FIG. 14 (f) is a graph showing the time change of the sensor output (mV) of the photoelectric pulse wave meter with time (sec) taken on the vertical axis, and FIG. It is a table | surface which shows the correlation coefficient, the pulse processing signal, and the correlation coefficient of the signal by a photoelectric pulse wave meter.

Further, according to the lifting sensor ₁₁ 1 to 11 _n, as shown in FIG. 15, the user ₇ 1 to _7-n is supine, prone, left lateral position, even when it is one of the body position of the right lateral position And the state of leaving / bed is reliably detected.
Incidentally, FIG. 15 (a) takes the output of the lifting sensor on the vertical axis represents the horizontal axis represents time (in seconds), indicates the time variation of the output of the lifting sensor when the user 7 ₁ to _7-n is supine FIG. Further, FIG. 15 (b) to the vertical axis to the horizontal axis represents time (in seconds) it takes the output of the lifting sensor, the time variation of the output of the lifting sensor when the user 7 ₁ to _7-n are prone FIG.
FIG. 15C shows the time (seconds) on the horizontal axis and the output of the bed leaving sensor on the vertical axis, and shows the time change of the output of the bed leaving sensor when the users 7 _{1 to} 7 _n are in the left recumbent position. FIG. FIG. 15D shows the time (seconds) on the horizontal axis and the output of the bed leaving sensor on the vertical axis, and shows the time change of the output of the bed leaving sensor when the users 7 _{1 to} 7 _n are in the right recumbent position. FIG.

Further, as shown in FIG. 16, pressure dispersion mattress (made of urethane), polyester mattresses, and, even when using any of the air mattress, lifting sensor ₁₁ 1 to 11 _n to user ₇ 1 to _7-n of The user 7 _{1 to} 7 _n may be placed in any of the supine position, the left recumbent position, and the right recumbent position, regardless of whether it is installed at any position below the navel, below the waist, below the buttocks, and below the crotch. Regardless of the posture, the state of getting out of bed / bed is reliably detected.

Next, a description of the operation of the control device ₁₅ 1 to 15 _n of the abnormality judgment means 45. The abnormality determination means 45 includes a user's 7 _{1 to} 7 _n getting out of bed / being in bed (out of bed, continuous getting out of bed, continuous getting out of bed), cardiopulmonary arrest, abnormal body movement, abnormal respiratory rate, and pulse rate. Determine the abnormality. Also, apnea used to increase the accuracy of the calculation of the respiratory rate is determined.

Next, the individual setting screen 215 of the host computer 19 will be described with reference to FIG. The individual setting screen 215 the operation setting of the control device 15 ₁ is performed from the host computer 19 side. That is, the setting is performed by operating the input unit 71 while viewing the individual setting screen 213 shown in FIG.
Incidentally, for the other stove torr device ₁₅ 2 to 15 _n, similarly setting is performed.

Above individual setting screen 215, there are apparatus number setting field 217, the control apparatus 15 ₁ of device number by entering a number in the device number setting field 217 is set.
Above individual setting screen 215, there is room number setting field 219, number of rooms to be installed in the control device 15 ₁ by entering a number in this room number setting field 219 is set.
Above individual setting screen 215, there is a user name setting column 221, the name of the user ₇₁ is set by inputting a name in the user name setting field 221.

Above individual setting screen 215 has a function set pulldown menu 225, this function setting pulldown menu 225, the operation mode of the control device 15 ₁ is set.
The individual setting screen 215 includes an operation start time setting column 226 and an operation end time setting column 227. Operation start time of the control device 15 ₁ by the operation start time setting section 226 is set, the operation end time of the control device 15 ₁ by the operation end time setting section 227 is set.
The individual setting screen 215 has an all day operation setting button 229. When the all day operation setting button 229 is pressed, 0:00 is set in the operation start time setting column 226 and the operation end time setting is performed. 23:59 is set in the column 227.

Further, a range of the respiratory rate (for example, 8 to 28 times) to be regarded as a normal respiration is set by the normal respiratory rate setting column 231. Further, a continuous time (for example, 120 seconds) in which the breathing is considered to be abnormal is set in the respiratory abnormality continuous time setting column 233.
Further, a range of the pulse rate to be regarded as a normal pulse (for example, 40 to 120 times) is set by the normal pulse rate setting column 235. In the pulse abnormal continuous time setting column 237, a continuous time (for example, 120 seconds) in which the pulse is regarded as abnormal is set.
In addition, the leaving time setting field 238 can be used to set a leaving time (for example, 2 seconds) used when discriminating the leaving from bed described later. Further, the continuous leaving time (for example, 1440 minutes) for performing the notification can be set by the continuous leaving time setting column 239. Further, the continuous stay time (for example, 1440 minutes) for performing the notification can be set by the continuous stay time setting column 241. By setting the continuous staying time for performing the notification to “0”, the notification is set not to be performed.

Further, there is radio communication on button 243 and the wireless communication off button 245, the operation to turn on the wireless communication with the control device 15 ₁ by the wireless communication on button 243 is performed, the control device by the wireless communication off button 245 15 An operation of turning off the wireless communication with the device ₁ is performed.

Further, there are an alert mail sending enable button 247 and an alert mail sending disable button 249, and an operation for enabling the setting of notifying by e-mail by the alert mail sending enable button 247 is performed. An operation is performed to invalidate the setting for notifying by e-mail.
A plurality (5 in the case of the first embodiment) of e-mail addresses to which the alert mail is sent is set in the send destination mail address setting column 251.
When the alert mail test transmission button 253 is operated, a test mail is transmitted to the e-mail address set in the destination mail address setting column 251.

Moreover, by operating the setting completion button 255, is transmitted and set contents set in the control device 15 _1, then proceeds to the normal operation screen 261 to be described later. When the cancel button 257 is operated, the set contents are discarded, and the screen shifts to a normal operation screen 261 described later.

Next, the normal operation screen 261 of the host computer 19 will be described. As shown in FIG. 18 (a), the state is displayed for all users 7 ₁ to _7-n which are monitoring In the normal operation screen 261. If there is abnormality in the user 7 ₁ to _7-n, as shown in FIG. 18 (b), the abnormality contents (in room 101 of the user "breathing abnormality") is displayed.
As described above, in the case of the present embodiment, since n = 5, the display of Nos. 101 to 105 is also performed in FIGS. 18A and 18B.

In the normal operation screen 261 is displayed the user status summary display unit ₂₆₃ 1 to 263 _5. Above the user status summary display unit 263 _1, user _{7 1} of room number 265, pulse number 271 of the respiratory rate per 269,1 minutes per 267,1 minutes name, leaves the floor / the bed of state 273 and,, state 275 of the wireless communication with the control device 15 ₁ is displayed.

Further, the user status summary display unit 263 _1, detail screen display button 277 and a setting screen display button 279 is provided. When the detailed screen display button 277 is operated, a detailed screen 291 described later is displayed. When the setting screen display button 279 is operated, the individual setting screen 215 is displayed.
User status summary display unit ₂₆₃ 2-263 ₅ also has the same structure as the user status summary display unit 263 ₁ is adapted to perform display and manipulate overview of user ₇ 2-7 ₅ .

Further, in the normal operation screen 261, there are history display portion 281, for user 7 _{1-7 5,} the history, such as abnormal or lifting / the bed of state is displayed.
This history is also stored in a storage device (not shown) of the host computer 19.
Further, the normal operation screen 261 has an end button 283, and the operation of the end button 283 causes the processing of the host computer 19 to end.
The normal operation screen 261 has a general setting button 285. By operating the general setting button 285, a general setting screen (not shown) is displayed. Turn on / off the account and history display.

Further, in the normal operation screen 261, there are report output button 287, the operation of the report output button 287, displays the report output screen (not shown), the host computer detailed data about the user 7 _{2-7 5} 19 can be output to a storage device (not shown).

Next, the detailed display screen 291 of the host computer 19 will be described. Display The detailed display screen, as shown in FIG. 19, the individual user 7 ₁ to _7-n, motion, respiration, pulse rate, amount of activity, lifting / change in the bed state in chronological Is done.

Next, various cases will be described with reference to flowcharts.
First, the operation mode of the control device ₁₅ 1 to 15 _n will be described from the case of "lifting-watch mode." In the “wake-up / watching mode”, abnormalities of wake-up / bed-up (absence, continuous wake-up abnormalities, continuous wake-up abnormalities) are determined, and cardiopulmonary arrest abnormalities, body movement abnormalities, respiratory abnormalities, and pulse abnormalities are also determined. Things.
First, with reference to FIG. 20, a description will be given of a general “breathing / pulsation and leaving / bedtime measurement” in the case of the “wake-up / watching mode”.
When lifting / the bed determination process is started, first in step S1, the "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. In step S1, the process proceeds to step S2 when the lifting sensor ₁₁ 1 to 11 _n is determined to "off". In this step S2, other notifications such as a cardiopulmonary arrest abnormality notification, a body movement abnormality notification, a breathing abnormality notification, and a pulse abnormality notification are suppressed, and the process proceeds to the next step S3.

In step S3, measurement of the bed leaving time is started, and the process proceeds to the next step S4. In step S4, the "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. If it is determined in step S4 that the leaving sensors 11 _{1 to} 11 _n are “OFF”, the process proceeds to step S5. In this step S5, it is determined whether or not a predetermined leaving time (for example, 2 seconds) has elapsed.
The time of 2 seconds is an erroneous detection prevention time, which prevents erroneous detection of leaving the bed due to, for example, turning over. At this time, the time is not limited to 2 seconds, but may be 3 seconds or other time.
If it is determined in step S5 that a predetermined bed leaving time (for example, 2 seconds) has elapsed, the process proceeds to step S6. In step S6, a notification of leaving the bed is issued, and then the processing is terminated. Then, after the notification is canceled, the process starts again from step S1.

If it is determined in step S5 that the predetermined leaving time (for example, 2 seconds) has not elapsed, the process returns to step S4, and the same processing is repeated.
On the other hand, in step S1, the process proceeds to step S7 when the lifting sensor ₁₁ 1 to 11 _n is determined to be "on". In this step S7, suppression of other notifications is released. Similarly, in step S4, lifting sensor ₁₁ 1 to 11 _n is also proceeds to step S7 when it is determined that "on". After step S7, it is determined that the person is in bed, and the bed leaving / bed determination processing is terminated, and then the processing from step S1 is started again.

Next, the in-bed motion determination processing will be described. The in-bed motion determination process includes a cardiopulmonary arrest determination process, a body motion determination process, a respiration measurement process, and a pulse measurement process. In the "wake-up / watching mode", the above-described leaving-bed / existing-bed determination process and these processes are performed in parallel.
First, the cardiopulmonary stop determination processing will be described with reference to FIG.
First, in step S10, measurement of a determination time (for example, 15 seconds) is started. Next, the process proceeds to step S11 to reset the cardiopulmonary counter. Next, the process proceeds to step S12 to start measuring a measurement time (for example, 1 second).

Next, the process proceeds to step S13, and the latest sample data is extracted from the mixed signal. Next, the process proceeds to step S14, and it is determined whether or not the sample data is equal to or more than a predetermined threshold for determining cardiopulmonary arrest (for example, +2.6 V). If it is determined in step S14 that the sample data is equal to or more than a predetermined threshold for determining cardiopulmonary arrest (for example, +2.6 V), the process proceeds to step S15, and 1 is added to the cardiopulmonary counter. Next, the process proceeds to step S16.
If it is determined in step S14 that the sample data is not equal to or larger than the predetermined threshold for determining cardiopulmonary arrest (for example, +2.6 V), the process proceeds to step S16. In step S16, it is determined whether a predetermined measurement time (for example, one second) has elapsed. If it is determined in step S16 that the predetermined measurement time (for example, one second) has not elapsed, the process returns to step S13 again, and the same processing is repeated.

  If it is determined in step S16 that the predetermined measurement time (for example, one second) has elapsed, the process proceeds to step S17. In this step S17, it is determined whether or not the cardiopulmonary counter is equal to or more than a predetermined number (for example, six). If the cardiopulmonary counter is equal to or more than a predetermined number (for example, six times), it is determined that the cardiopulmonary is normal, and the cardiopulmonary arrest discrimination processing is terminated. Will be started from.

  If it is determined in step S17 that the cardiopulmonary counter is not equal to or more than the predetermined number (for example, six), the process proceeds to step S18. In step S18, it is determined whether a predetermined determination time (for example, 15 seconds) has elapsed. If it is determined in step S18 that the predetermined determination time (for example, 15 seconds) has not elapsed, the process returns to step S11 again, and the same processing is repeated. If it is determined in step S18 that the predetermined determination time (for example, 15 seconds) has elapsed, the process proceeds to step S19. That is, if the state of six times or less per second has occurred continuously for 15 seconds, the process proceeds to step S19, in which the cardiopulmonary arrest abnormality is notified, and then the process ends. After the notification is canceled, the process is started again from step S1.

Next, the body motion determining process will be described with reference to FIG.
First, in step S20, measurement of a determination time (for example, 32 seconds) is started. Next, the process proceeds to step S21 to reset the body movement counter. Next, the process proceeds to step S22, and measurement of a measurement time (for example, 4 seconds) is started.

Next, the process proceeds to step S23, and the latest sample data is extracted from the mixed signal. Next, the process proceeds to step S24, and it is determined whether or not the sample data is equal to or greater than a predetermined body motion determination threshold (for example, +4.9 V). If it is determined in step S24 that the sample data is equal to or more than a predetermined threshold value for body movement determination (for example, +4.9 V), the process proceeds to step S25, and 1 is added to the body movement counter. Next, the process proceeds to step S26. If it is determined in step S24 that the sample data is not equal to or higher than the predetermined body movement determination threshold (for example, +4.9 V), the process also proceeds to step S26.
In step S26, it is determined whether a predetermined measurement time (for example, 4 seconds) has elapsed. If it is determined in step S26 that the predetermined measurement time (for example, 4 seconds) has not elapsed, the process returns to step S23 again, and the same processing is repeated.

  If it is determined in step S26 that the predetermined measurement time (for example, 4 seconds) has elapsed, the process proceeds to step S27. In step S27, it is determined whether the body motion counter is equal to or more than a predetermined number (for example, 200). If the body motion counter is equal to or more than a predetermined number (for example, 200 times), the process proceeds to step S28. In the above step S28, the display means 49 displays "there is body movement" at the place of the respiratory rate and the pulse rate, and then proceeds to step S29.

In step S29, it is determined whether a predetermined determination time (for example, 32 seconds) has elapsed. If it is determined in step S29 that the predetermined determination time (for example, 32 seconds) has elapsed, the process proceeds to step S30. In step S30, the body motion abnormality is notified, and the process ends. Thereafter, after the notification is canceled, the process is started again from the process of step S1. That is, when the body motion counter is equal to or more than a predetermined number of times (for example, 200 times) and continues for a predetermined determination time (for example, 32 seconds), the body motion abnormality notification is performed.
If it is determined in step S29 that the predetermined determination time (for example, 32 seconds) has not elapsed, the process returns to step S21 again, and the same processing is repeated.

  If it is determined in step S27 that the body motion counter is not equal to or more than the predetermined number (for example, 200), the process proceeds to step S31. In step S31, the respiration / pulse rate is displayed on the display means 49, and after the body motion discrimination processing is completed, the processing is started again from step S20.

Next, the respiration measurement process will be described with reference to FIG.
First, in step S40, the abnormal breathing time (for example, 120 seconds) is reset, and the process proceeds to step S41. In step S41, mixed signals for a predetermined sampling time (for example, 10 seconds) are sampled to obtain sampling data. Next, the process shifts to step S42 to perform a calculation process such as a filter process on the sampling data to extract a respiratory signal. Next, the process proceeds to step S43, where the respiration rate for one minute is calculated from the respiration signal and displayed.

  Next, the process proceeds to step S44, and it is determined whether or not the respiratory rate is within a predetermined range (for example, 8 to 28 times / min). If it is determined in step S44 that the respiratory rate is not within the predetermined range (for example, 8 to 28 times / minute), the process proceeds to step S45, and the abnormal breathing time is added (added in units of 10 seconds). To go.). Next, the process proceeds to step S46, and it is determined whether or not a predetermined respiratory abnormality time (for example, 120 seconds) has elapsed. If it is determined in step S46 that the predetermined abnormal breathing time (eg, 120 seconds) has not elapsed, the process returns to step S41. If it is determined in step S46 that the predetermined abnormal breathing time (for example, 120 seconds) has elapsed, the process proceeds to step S47. In step S47, a respiratory abnormality is notified, and then the process ends.

  If it is determined in step S44 that the respiratory rate is within the predetermined range (for example, 8 to 28 times / minute), the process returns to step S40 and starts the respiration measurement process again.

Next, the pulse measurement process will be described with reference to FIG.
First, in step S48, the abnormal pulse time (for example, 120 seconds) is reset, and the process proceeds to step S49. In step S49, mixed signals for a predetermined sampling time (for example, 10 seconds) are sampled to obtain sampling data.
Next, the process proceeds to step S50, where arithmetic processing such as filtering is performed on the sampling data to extract a pulse signal. Next, the flow shifts to step S51, where the pulse rate for one minute is calculated from the pulse signal and displayed.

Next, the process proceeds to step S52, and it is determined whether the pulse rate is within a predetermined range (for example, 40 to 120 times / minute). If it is determined in step S52 that the pulse rate is not within the predetermined range (for example, 40 to 120 times / minute), the process proceeds to step S53, and an abnormal pulse time (for example, 10 seconds) is added. Next, the process proceeds to step S54, and it is determined whether or not a predetermined abnormal pulse time (for example, 120 seconds) has elapsed. If it is determined in step S54 that the predetermined abnormal pulse time (e.g., 120 seconds) has not elapsed, the process returns to step S49 again, and the same processing is repeated.
If it is determined in step S54 that the predetermined abnormal pulse time (for example, 120 seconds) has elapsed, the process proceeds to step S55. In step S55, a pulse abnormality notification is performed, and then the process ends.

If it is determined in step S52 that the pulse rate is within the predetermined range (for example, 40 to 120 times / minute), the process returns to step S48, and the pulse measurement process is started again.
In the above-described processing, in step S2 of FIG. 20, the other notification is suppressed, so that the leaving-bed notification has the highest priority. Further, regarding the cardiopulmonary arrest abnormality notification shown in FIG. 21, the body movement abnormality notification shown in FIG. 22, the respiratory abnormality notification shown in FIG. 23, and the pulse abnormality notification shown in FIG. By setting the judgment time of the abnormal motion notification to 32 seconds and the judgment time of the respiratory abnormality notification and the pulse abnormal notification to 120 seconds, the cardiopulmonary arrest abnormal notification, the body motion abnormal notification, the respiratory abnormal notification, and the pulse abnormal notification are sequentially performed. Notification priorities are assigned.

Next, with reference to FIG. 25, the description will be given of the "operation when setting the continuous leaving time in the breathing / pulsation and getting out / bed measurement" in the same "getting out / watching mode".
This processing does not need to be notified immediately after leaving the bed, but is applied when it is desired to report an abnormality that has been leaving the bed for a long time.
For example, always bed ₃ 1 _{~3 n} user ₇ 1 _{~7 n} you are on is, from time to time in the case of off the floor and to go to bed ₇ 1 _{~7 n} next to the toilet (toilet), in some kind of reason it is applied when you want to broadcast to detect the If you can not go back to bed 3 ₁ ~3 _n. The continuous leaving time in this case is, for example, 30 minutes.
In addition, as another example, if the user 7 ₁ ~7 _n such as dementia, want to broadcast to detect the case so as not to go back somewhere you fall to no longer on the bed 3 ₁ ~3 _n stuck in the room Applied to The continuous leaving time in this case is, for example, 24 hours.

First, in step S61, an "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. If it is determined in step S61 that the leaving sensors 11 _{1 to} 11 _n are “off”, the process proceeds to step S62. In step S62, other information such as cardiopulmonary arrest abnormality notification, body movement abnormality notification, respiratory abnormality notification, and pulse abnormality notification is suppressed, and the routine goes to the next step S63.

In step S63, measurement of the bed leaving time is started, and the routine goes to the next step S64. In step S64, an "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. In step S64, if the lifting sensor ₁₁ 1 to 11 _n is determined to "off", the process proceeds to step S65. In step S65, it is determined whether or not a predetermined leaving time (for example, 2 seconds) has elapsed. If it is determined in step S65 that the predetermined bed leaving time (2 seconds) has elapsed, the process proceeds to step S67. If it is determined in step S65 that the predetermined bed leaving time (2 seconds) has not elapsed, the process returns to step S64 and the same processing is repeated.

In step S67, it is determined whether or not a predetermined continuous leaving time (for example, 1440 minutes) has elapsed. If it is determined in step S67 that the predetermined continuous bed leaving time (for example, 1440 minutes) has elapsed, the process proceeds to step S68. In the above step S68, continuous bed leaving notification is performed, and the process ends.
If it is determined in step S67 that the predetermined continuous bed leaving time (for example, 1440 minutes) has not elapsed, the process returns to step S64 again, and the same processing is repeated.

If it is determined in step S61 that the leaving sensors 11 _{1 to} 11 _n are “ON”, the process proceeds to step S69, and after the suppression of other notification is canceled, the process is restarted from step S61. The same applies if the lifting sensor ₁₁ 1 to 11 _n is determined as "ON" in step S64.
In this case, the cardiopulmonary arrest determination, the body motion determination, the respiration measurement, and the pulse measurement shown in FIGS. 21 to 24 are similarly performed.

Next, with reference to FIG. 26, a description will be given of the "operation when setting the continuous occupancy time in the breathing / pulsation and wake-up / bedtime measurement" in the same "wake-up / watching mode".
In this case, for example, it is used for home care or the like to measure the state of respiration or pulse during staying in the bed and to report an abnormal situation that has been continuously staying in the bed for a long time.
For example, in the case of a person to go to bed ₃ 1 _{~3 n} from time to time of the bed ₃ 1 _{~3 n} in the user ₇ 1 _{~7 n} who is next to the toilet (toilet), detect the anomalies that may or may not go into a long period of time toilet -It is conceivable that the user wants to be informed (continuous staying time 12 hours).
In addition, if you want to detect and notify the accident in which the user 7 ₁ ~7 _n is not a bedridden sleeping in 3 ₁ ~3 _n day bed (Continuous the bed time of 24 hours) it can be considered.
First, in step S71, measurement of the staying time is started. Then, the process proceeds to step S72, the "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. If it is determined in step S72 that the leaving sensors 11 _{1 to} 11 _n are “ON”, the process proceeds to step S73.

In step S73, it is determined whether or not a predetermined continuous staying time (for example, 1440 minutes) has not elapsed. If it is determined in step S73 that the predetermined continuous bed time (for example, 1440 minutes) has not elapsed, the process returns to step S72 again, and the same processing is repeated. If it is determined in step S73 that the predetermined continuous bed time (for example, 1440 minutes) has elapsed, the process proceeds to step S74. In step S74, continuous in-bed notification is performed, and then the process ends.
By setting the predetermined continuous occupancy time to “0”, continuous occupancy notification is not performed.

If it is determined in step S72 that the leaving sensors 11 _{1 to} 11 _n are “OFF”, the process proceeds to step S75. In step S75, the measurement of the occupancy time is stopped, and the process proceeds to step S76. In step S76, other notifications such as cardiopulmonary arrest abnormality notification, body movement abnormality notification, respiratory abnormality notification, and pulse abnormality notification are suppressed, and the flow shifts to the next step S77.

In step S77, measurement of the bed leaving time is started, and the process proceeds to step S78. In step S78, an "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. In step S78, if the lifting sensor ₁₁ 1 to 11 _n is determined to "off", the process proceeds to step S79. In step S79, it is determined whether or not a predetermined leaving time (for example, 2 seconds) has elapsed. If it is determined in step S79 that the predetermined leaving time (for example, 2 seconds) has not elapsed, the process returns to step S78 again, and the same processing is repeated.

In step S78, if the lifting sensor ₁₁ 1 to 11 _n is determined as "ON", the process proceeds to step S80. In step S80, the measurement of the occupancy time is restarted, and the flow shifts to step S81 to cancel the suppression of other notifications and shifts to step S73. If it is determined in step S79 that a predetermined leaving time (for example, 2 seconds) has elapsed, the process proceeds to step S82. In step S82, "on / off" of the bed leaving notification setting is determined. If it is determined in step S82 that the leaving-of-bed notification setting is “ON”, the process proceeds to step S83, and the leaving-of-bed notification is performed. Then, the process ends.
In the step S82, the if the lifting notification setting is determined to be "off" again, when the lifting sensor 11 ₁ to 11 _n is "on", the processing from step S71 is started.

Next, with reference to FIG. 27, the description will be given of the same “wake-up / watching mode”, that is, “operation when setting continuous wake-up time and continuous wake-up time in measurement of breathing / pulse and wake-up / in-bed”.
This is because at home care etc., while measuring the state of breathing and pulse at bedtime, it is not necessary to notify immediately when leaving the bed, Use this when you want to detect and report an abnormal event.
For example, bed ₃ at 1-3 _n are in the user ₇ 1 _{~7 n,} sometimes bed ₃ 1 to 3 if _n of people to go to the next to the toilet (toilet) of, bed ₃ 1 to 3 in for any reason _This is applied when it is desired to detect and notify an abnormality that cannot return to _n , an abnormality that does not go to the toilet for a long time, and the like (continuous leaving time 30 minutes, continuous staying time 12 hours).
In addition, it is the case of the user 7 _{1 to} 7 _n who sleeps on the beds 3 _{1 to} 3 _n every day but may be outside the beds 3 _{1 to} 3 _n , and falls down somewhere in the room and cannot move. accident that does not come back to bed 3 ₁ ~3 _n have, accident that during sleeping in bed 3 ₁ ~3 _{n 1} day, used in cases such as when you want to detect and notify the (continuous lifting time of 24 hours, continuous standing time of 24 hours ).
First, in step S91, measurement of the staying time is started. Then, the process proceeds to step S92, "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. In the step S92, if the lifting sensor ₁₁ 1 to 11 _n is determined to be "on", the process proceeds to step S93.

  In step S93, it is determined whether or not a predetermined continuous bed time (for example, 1440 minutes) has elapsed. If it is determined in step S93 that the predetermined continuous bed time (for example, 1440 minutes) has not elapsed, the process returns to step S92.

If it is determined in step S93 that the predetermined continuous bed time (1440 minutes) has elapsed, the process proceeds to step S94. In step S94, continuous in-bed notification is performed, and then the process ends.
By setting the predetermined continuous occupancy time to “0”, continuous occupancy notification is not performed.

If it is determined in step S92 that the leaving sensors 11 _{1 to} 11 _n are “off”, the process proceeds to step S95. In step S95, the measurement of the occupancy time is stopped, and the process proceeds to step S96. In step S96, other notifications, such as cardiopulmonary arrest abnormality notification, body movement abnormality notification, respiratory abnormality notification, and pulse abnormality notification, are suppressed, and the routine goes to the next step S97. In step S97, measurement of the bed leaving time is started, and the process proceeds to step S98. In step S98, an "on / off" of the lifting sensor ₁₁ 1 to 11 _n is determined. In step S98, if the lifting sensor ₁₁ 1 to 11 _n is determined to "off", the process proceeds to step S99. In step S99, it is determined whether or not a predetermined leaving time (for example, 2 seconds) has elapsed. If it is determined in step S99 that the predetermined leaving time (for example, 2 seconds) has not elapsed, the process returns to step S98 and the same processing is repeated.

In step S98, if the lifting sensor ₁₁ 1 to 11 _n is determined as "ON", the process proceeds to step S100. In step S100, the measurement of the occupancy time is restarted, and the process proceeds to step S101. In step S101, the suppression of other notification is released, and the flow shifts to step S93 described above. If it is determined in step S99 that the predetermined leaving time (for example, 2 seconds) has elapsed, the process proceeds to step S102. In this step S102, it is determined whether or not a predetermined continuous leaving time (for example, 1440 minutes) has not elapsed. If it is determined in step S102 that the predetermined continuous bed leaving time (for example, 1440 minutes) has elapsed, the process proceeds to step S103. In the above step S103, continuous wake-up notification is performed, and then the processing is terminated. If it is determined in step S102 that the predetermined continuous bed leaving time (for example, 1440 minutes) has not elapsed, the process returns to step S99 again, and the same processing is repeated.

Next, the operation mode of the control device 15 ₁ to 15 _n is "watching mode", described "operation in the breathing-pulse measurement".
In this case, for example, not that the user 7 ₁ to _7-n moves almost in bed 3 ₁ on to 3 _n, of course, but nor for lifting, necessary to measure the state of respiration and pulse rate Applicable where applicable.
Specifically, only the processing shown in FIGS. 21 to 24 is performed without performing the processing of FIG. 20 already described.

Next, the operation mode of the control device 15 ₁ to 15 _n is "lifting mode", it described "operation in the lifting / the bed measurement".
For example, it is not necessary for the measurement of respiration and pulse rate, user 7 ₁ to _7-n is used when you want to immediately informed when lifting.
Specifically, only the processing shown in FIG. 20 described above is performed.

Next, a mode of operation of the control device 15 ₁ to 15 _n is "lifting mode", described "lifting / operation during continuous lifting setting in the bed measurement".
For example, in home care, etc., there is no need of measurement of breathing and pulse, also, there is no need for the notification of mobilization, the user 7 ₁ ~7 _n is applied when you want to make a notification Once off the floor and a long period of time.
Specifically, only the processing of FIG. 25 described above is performed.

Next, the operation mode of the control device 15 ₁ to 15 _n is "lifting mode", described "lifting / operation in continuous the bed time setting in the bed measurement".
In this case, it is not necessary to measure the respiration and pulse in home care or the like, but it is used when it is desired to notify the user of an abnormality that has been continuously in bed for a long time.
For example, in the user ₇ 1 _{~7 n} you are in bed ₃ 1 _{~3 n,} sometimes if you go to the next to the toilet of the bed ₃ 1 _{~3 n,} a long period of time accident not to go to the toilet, such as in the case of detection and notification of Used (continuous bed time 12 hours).
Also used when it is desired to broadcast accident the user ₇ 1 to _7-n are not bedridden sleeping in ₃ 1 to 3 _n day bed, etc. (continuous the bed time 24 hours).
Specifically, only the processing shown in FIG. 26 is performed.

Next, a mode of operation of the control device 15 ₁ to 15 _n is "lifting mode", it described "lifting / Continuous mobilization time and continuous the bed time setting operation at the time in the bed measurement".
In this case, in home care, etc., there is no need to measure breathing and pulse, and it is not necessary to notify immediately after leaving the bed. It is used when it is desired to detect and report an anomaly or the like that is occupying the floor.
For example, always bed ₃ 1 ~3 _n to have the user ₇ 1 _{~7 n,} sometimes bed ₃ 1 ~3 _n of the side or the like of the toilet if you go to the (portable toilets), bed ₃ 1 to 3 in for any reason _This is used when it is desired to detect and notify an abnormality such as an abnormality that cannot return to _n , an abnormality that does not go to the toilet for a long time, and the like (continuous leaving time 30 minutes, continuous staying time 12 hours).
In addition, a user ₇ 1 _{~7 n} sleeping always in the daily bed ₃ 1 on the ~3 _n, if there is when you're in the ₃ 1 ~3 _n out of bed, unable to move and fall somewhere in the room or, anomalies that are not returned to the bed 3 ₁ to 3 _n, accident sleeping in bed all day 3 ₁ to 3 _n, (continuous lifting 24 hours used when detecting and informing the accident etc., also continuous the bed 24 hours).
Specifically, only the processing shown in FIG. 27 described above is performed.

Next, detection and notification of apnea will be described with reference to FIGS. Control device 15 ₁ to 15 _n of the signal processing unit 43 discriminates the apnea in the abnormality judgment means 45, if it is determined that the apnea, "0 respiratory rate regardless of the respiratory obtained by respirometry ”To improve the accuracy of the respiration measurement.
Hereinafter, the apnea discrimination processing will be described in detail with reference to FIGS. 28 and 29.
First, in step S201, the biometric information collection sheet ₁₃ 1 to 13 _n from the predetermined time period (e.g., 10 seconds) to obtain a mixed signal content as sampling data. This sampling data is, for example, as shown in FIG. 29A when there is breathing, and is as shown in FIG. 29C when there is no breathing. Next, the process proceeds to step S202, and absolute value data is obtained from the sampling data. This absolute value data is, for example, as shown in FIG. 29B when there is breathing, and is as shown in FIG. 29D when there is no breathing.

FIG. 29A shows time (seconds) on the horizontal axis and sensor output (mV, mixed signal) on the vertical axis, and shows the time change of the sensor output (mV, mixed signal) when there is breathing. FIG. 31 (b) shows the time (seconds) on the horizontal axis, the sensor output (mV, mixed signal) on the vertical axis, and the absolute value of the sensor output (mV, mixed signal) when there is breathing. It is a figure showing a time change.
FIG. 31 (c) shows time (seconds) on the horizontal axis and sensor output (mV, mixed signal) on the vertical axis, and shows the time change of the sensor output (mV, mixed signal) in the case of apnea. FIG. 31D shows time (seconds) on the horizontal axis, sensor output (mV, mixed signal) on the vertical axis, and the absolute value of the sensor output (mV, mixed signal) in the case of apnea. It is a figure showing a time change.
The sampling data is obtained by, for example, data every 0.01 seconds from the mixed signal. If the predetermined period (for example, 10 seconds), 1000 data can be obtained. It is.

  Next, the process proceeds to step S203, and the maximum value of the absolute value data is obtained. Next, the process proceeds to step S204, and the measurement number counter is reset. Next, the process proceeds to step S205, and the data extraction position is reset from the absolute value data. Next, the process proceeds to step S206, and the count counter is reset. Next, the process proceeds to step S207, and data at the extraction position of the absolute value data is extracted.

  Next, the process proceeds to step S208, where the data is a reference value determined based on the maximum value (for example, 0.3 times the maximum value, where 0.3 times the maximum value is larger than 0.5V). In this case, it is determined whether the voltage is 0.5 V or more. If it is determined in step S208 that the data is equal to or larger than the reference value (for example, 0.3 times the maximum value) determined based on the maximum value, the process proceeds to step S209. In this step S209, 1 is added to the count counter. Next, the process proceeds to step S210, and it is determined whether or not the extraction position has reached the end of the sampling data. If it is determined in step S210 that the extraction position has not reached the end of the sampling data, the process proceeds to step S211 and after moving the data extraction position, returns to step S207 again and repeats the same processing. .

  If it is determined in step S210 that the extraction position has reached the end of the sampling data, the process proceeds to step S212, and it is determined whether the count counter is equal to or less than a predetermined number (for example, 500). If it is determined in step S212 that the count counter is equal to or less than the predetermined number (for example, 500), the process proceeds to step S213. In step S213, 1 is added to the measurement counter. In the next step S214, it is determined whether or not the measurement number counter is larger than a predetermined number (for example, three times). If it is determined in step S214 that the measurement number counter is larger than the predetermined number (for example, three), the process proceeds to the next step S215. If it is determined in step S214 that the measurement counter is not larger than the predetermined number (for example, three), the process returns to step S205 and the same processing is repeated.

  In step S215, it is determined that the patient is apnea, and the respiration rate is set to 0 regardless of the measurement result of the respiration rate obtained in the respiration measurement processing shown in FIG. Thereafter, the flow returns to step S201 again, and the same processing is repeated. If it is determined in step S212 that the count counter is not less than the predetermined number (for example, 500), the process proceeds to step S216. In step S216, it is determined that there is respiration. In this case, the measurement result of the respiration rate obtained in the respiration measurement processing shown in FIG. 23 is processed as the respiration rate as it is. Thereafter, the flow returns to step S201 again, and the same processing is repeated.

Next, according to the present embodiment, the following effects can be obtained.
First, even if lifting sensor 11 ₁ to 11 _n is not set to "off", the predetermined lifting time for false positives prevention (e.g., 2 seconds) reports the ambulation after having determined that the elapsed Then, by using the mixed signal obtained from the biological information collection sheet 13 as it is, the cardiopulmonary arrest discrimination process and the body motion discrimination process are performed to notify important events such as death and seizure. Therefore, important events such as death and seizure can be detected quickly and with less erroneous judgment, and an alarm can be issued.

In addition, since the notification is given priority in the order of notification of leaving bed, abnormalities of cardiopulmonary arrest, abnormalities of body movements, abnormalities of breathing and pulse, the important events such as death and seizure are quickly detected and alerted as described above. can do.
Also, when it is determined that there is no important event such as death or seizure while in bed, respiration and pulse information are obtained by performing predetermined signal processing on the mixed signal, and based on the information, respiratory abnormalities, Since the pulse abnormality is determined and the alarm is issued, the monitoring accuracy can be improved.

In addition, apnea is determined by apnea determination processing, and when apnea is detected, the priority is given to the apnea determination processing, so that the accuracy of respiratory abnormality determination is improved. be able to.
In particular, in the apnea discrimination processing, a predetermined threshold value (0.3 times the maximum value; however, if the mixed signal is larger than 0.5 V, the voltage is limited to 0.5 V in a predetermined time (for example, 10 seconds)). ) Is performed based on the frequency of occurrence of a signal having the above amplitude (for example, whether or not the number is 500 or less), so that the accuracy of the apnea discrimination process can be improved. In addition, when a state satisfying such a condition is repeated, for example, three times, it is determined that the patient is apnea, so that the accuracy can be further improved.
In addition, since a continuous bed-abnormality abnormality and a continuous bed-abnormality abnormality are also notified, the monitoring accuracy can be improved accordingly. In particular, it is possible to effectively cope with various cases and to perform monitoring by appropriately combining the normal bed leaving, the continuous bed leaving abnormality, and the continuous bed abnormality.
Further, in the case of informing the continuous in-bed abnormality, it is possible to select the notification of leaving the bed, so that the number of cases that can be dealt with can be increased.

In the vicinity of the bed ₃ 1 to 3 _n, since each control device ₁₅ 1 to 15 _n are installed, using this control device ₁₅ 1 to 15 _n, the vicinity of the user ₇ 1 to _7-n Can perform desired monitoring.
Further, since the host computer 19 is installed, by the host computer 19, it is possible to centralize the control device ₁₅ 1 to 15 _n.
The control device 15 1 _{to 15 n,} on either side of the host computer 19, various settings, since various monitoring is configurable, depending on the situation, either one at various settings, various monitoring Various usage modes can be supported, such as performing various settings and various types of monitoring on both sides, and sharing roles between both sides.

Moreover, lifting the sensor ₁₁ 1 to 11 _n are installed parallel to the plate-like member 81a, 81b and the elastic consisting support member 83a~83e and the plate-like member 81a, lifting detection switch 85 installed between the 81b , It is possible to detect bed leaving / bed presence with high sensitivity.

In addition, since the leaving-of-bed detection switch 85 is provided with the protrusion 97 that is in contact with the plate-like member 81a, the leaving-of-bed detection switch 85 is easily pressed by the plate-like member 81a, and the sensitivity is increased. Can be.
If a slight space is positively provided between the plate member 81a and the projection 97, the load of the mattress 55 is less likely to be applied to the leaving-bed detection switch 85 at the time of leaving the bed. Durability can be improved and erroneous detection can be prevented.

In addition, a plurality of (two in the case of the first embodiment) air chambers 105 are provided in the biological information collection sheets 13 _{1 to} 13 _n , and the insides thereof communicate with each other through a communication path 107, so that the sheets as a whole are formed. a bag body 101 provided Jo, for constitution pyroelectric infrared sensor 121 and the amplifier circuit provided in the air chamber 105 from the sensor module 111. formed by providing on the substrate 125, the user 7 _{1 7n} biological information can be detected with high sensitivity.

Further, in the above sensor module 111 because it is used is a pyroelectric infrared sensor 121, due to the flow of air within the receptacle 101 caused by a slight operation of breathing or the like of the user 7 ₁ to _7-n from the temperature change around the sensor module 111 may detect biological information of the user 7 ₁ to _7-n to high sensitivity. In particular, the above-mentioned pyroelectric infrared sensor 121 for high sensitivity in the low frequency region, it is possible to detect user 7 ₁ to _7-n respiration, heart beat, the biometric information of the pulse such as a high sensitivity.

Further, an amplification circuit for amplifying the output of the pyroelectric infrared sensor 121 is mounted on the substrate 125 of the sensor module 111 together with the pyroelectric infrared sensor 121. Therefore, the living body information collecting sheet 13, the pyroelectric case of installing infrared sensor 121 and by spacing the amplifier hardly influenced by noise found in the user 7 ₁ to _7-n respiration, heart beat, Biological information such as a pulse can be detected with high sensitivity.
Further, since the sensor module 111 is sealed in the air chamber 105, generation of noise due to disturbance can be suppressed, and biological information such as respiration, heart rate, and pulse of the care receiver can be detected with high sensitivity. Can be detected.

In the portion of the bag 101 penetrated by the cable 135, the portion of the bag 101 penetrated by the cable 135 includes sheet materials 103a and 103b, reinforcing sheets 141a and 141b, and the heat-shrinkable tube 139. Since the adhesive layer and the cable 135 are heat-welded together, air leakage at this portion can be completely prevented.
In particular, since the adhesive layer is provided inside the heat-shrinkable tube 139, air leakage through a gap between the heat-shrinkable tube 139 and the cable 135 can be completely prevented.

Further, as shown in FIG. 4B, the connecting portion of the cable 135 to the board 125, that is, the range from the exposed conductor 129 of each lead wire 127 to the covering tube 133 is bonded by the adhesive 143. Since it is hardened, it is possible to prevent air leakage from the bag body 101 through the gap between the ends of the covering tube 133 of the cable 135 and the covering tube 131 of the lead wire 127.
Note that the bag body 101 itself is bonded by heat welding or the like to a sheet material 103a, 103b having a high gas barrier property having a two-layer structure or a three-layer structure in which layers made of polyethylene or nylon (registered trademark) are stacked. As a matter of course, there is no air leakage.

Thus, by preventing air leakage from the receptacle within 101, as described above, functions and the air flow is generated within the air chamber 105 by a slight operation of the user 7 ₁ to _7-n, whereas The function of efficiently propagating the flow of air generated in the air chamber 105 to the other air chamber 105 is ensured, and the range in which the biological information collecting sheet 13 can be detected is wide, and the sensitivity is high. Can be.
Further, by preventing air leakage from the inside of the bag 101, the function and performance of the biological information collecting sheet 13 can be maintained for a long time without replenishing the inside of the bag 101.

  Next, a second embodiment of the present invention will be described with reference to FIG. In the case of the first embodiment, the notification of getting out of bed / in bed and the notification at a lower level, that is, the notification of abnormal cardiopulmonary arrest, abnormal body movement, respiration, and abnormal pulse, are performed in step S2 in FIG. Priorities are assigned by processing, and priorities among cardiopulmonary arrest abnormalities, body movement abnormalities, respiratory and pulse abnormalities are assigned by setting the processing time required for each judgment to an appropriate value. I was On the other hand, in the case of the second embodiment, priorities among cardiopulmonary arrest abnormalities, abnormal body movements, respiration, and pulse abnormalities are also given priority by processing to suppress lower-level abnormalities. I am trying to do it. Hereinafter, this will be described in detail with reference to FIG.

  First, in step S221, it is determined whether or not a cardiopulmonary arrest abnormality notification is made. If it is determined that the notification is cardiopulmonary arrest abnormality notification, the process proceeds to step S222 to perform processing for suppressing body movement abnormality notification and breathing and pulse abnormality notification. Next, the process proceeds to step S223, and it is determined whether or not the cardiopulmonary arrest abnormality notification is suppressed. Here, when it is determined that the notification of the cardiopulmonary arrest abnormality is not suppressed, the process proceeds to step S224, and the cardiopulmonary arrest abnormality notification is performed. On the other hand, when it is determined that the notification of the abnormalities of the cardiopulmonary arrest is present, the process ends.

  If it is determined in step S221 that the notification is not a cardiopulmonary arrest abnormality notification, the process proceeds to step S225. In this step S225, it is determined whether or not it is a body motion abnormality notification. If it is determined in step S225 that the notification is a body movement abnormality notification, the process proceeds to step S226. In step S226, a process of suppressing the respiratory and pulse abnormality notification is performed. Next, the process proceeds to step S227 to determine the presence / absence of body movement abnormality notification suppression. If it is determined that there is no body movement abnormality notification suppression, the process proceeds to step S228. In step S228, a body movement abnormality notification is performed. If it is determined in step S227 that there is body motion abnormality notification suppression, the process ends.

If it is determined in step S225 that the notification is not body movement abnormality notification, the process proceeds to step S229. In this step S229, it is determined whether or not it is a respiratory / pulse abnormality notification. If it is determined that the notification is a respiratory / pulse abnormality notification, the process proceeds to step S230. In step S230, it is determined whether or not the respiratory / pulse abnormality notification is suppressed. If it is determined that the respiratory / pulse abnormality notification is not suppressed, the process proceeds to step S231, and the respiratory / pulse abnormality notification is executed. If it is determined in step S229 that there is no respiratory / pulse abnormality notification, and if it is determined in step S230 that respiratory / pulse abnormality notification suppression is present, the process ends without performing respiratory / pulse abnormality notification.
The priority order between the notification of leaving the bed and the notification of other abnormalities, that is, the abnormalities of the cardiopulmonary arrest abnormalities, the abnormal body movements, the respiration, and the abnormal pulse is the same as those shown in FIG.

  As described above, also in the case of the second embodiment, the same effects as in the case of the first embodiment can be obtained.

Next, a third embodiment of the present invention will be described with reference to FIGS.
In the third embodiment, biological information collection sheets 301 _{1 to} 301 _n as shown in FIGS. 31 and 32 are used. The living body information collecting sheet ₃₀₁ 1 to 301 _n, the first and second embodiments of the living body information collecting sheet ₁₃ 1 to 13 _n and has substantially the same configuration, FIG. 31 of the bag body 101, FIG. 32 On the middle upper side, a plate-shaped pressing member 303 is provided. Biometric information collection sheet ₃₀₁ 1 to 301 _n is the pressing member 303 side is disposed toward the user ₇ 1 to _7-n-side, via the pressing member 303, it is a configuration in which the receptacle 101 is pressed ing.
In this case, in addition to the operation and effect similar to those of the first and second embodiments, the vibration from the user is transmitted to the biological information collecting sheets 301 _{1 to} 301 _n via the pressing member 303. As a result, the function and effect that the sensitivity can be improved are also exhibited.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In the third embodiment, biological information collection sheets 401 _{1 to} 401 _n as shown in FIG. 33 are used. The living body information collecting sheets 401 _{1 to} 401 _n have substantially the same configuration as the living body information collecting sheets 301 _{1 to} 301 _n of the third embodiment, but instead of the pressing member 303, three pressing members 403a, The difference is that 403b and 403c are provided.
In this case, the same operation and effect as those of the first to third embodiments can be obtained.
Further, three pressing members 403a, 403b, because 403c is installed, the user _{7 1,} can have the position of the living body information collecting sheet ₄₀₁ 1 to 401 _n throat, to collect high sensitivity biological information it can.

Note that the present invention is not limited to the first to fourth embodiments.
First, setting work, signal processing, abnormality determination processing, and the like, which is performed by the host computer or the control device is optional, for example, without performing signal processing and abnormality determination processing on the control device side, from the control device It is also conceivable that the mixed signal of the biological information collecting sheet and the signal of the bed leaving sensor are transmitted to the host computer, and the host computer performs signal processing and abnormality determination processing.
Further, a case may be considered in which the control device and the host computer share signal processing and abnormality determination, and various other cases are also possible.
It is also conceivable that no host computer is installed. This is effective, for example, when used individually in an individual's home, home care or nursing care facility, and when there is an abnormality in the condition, to be notified by telephone or nurse call, etc. This is effective when installing multiple beds in a room.
Also, without installing a control device, it is conceivable that all the signals of the bed leaving sensor and the living body information collection sheet are aggregated in the host computer, and all the bed leaving / bed occupancy discrimination processing and bed occupancy movement discrimination processing are performed by the host computer. Can be
It is also conceivable that the biological information monitoring system according to the present invention is configured using cloud computing.

Also, various cases are conceivable for the material and the bonding method of the sheet materials 103a and 103b constituting the bag body 101. In addition, a configuration in which the reinforcing sheets 141a and 141b are not provided may be considered.
Also, various types of sensors used for the sensor module 111 can be considered. For example, it is conceivable to use a piezoelectric sensor or a microphone. It is also conceivable to provide a filter circuit separately from the sensor module 111.
It is also conceivable to adopt a configuration in which a circuit for performing wireless communication or a battery is built in the sensor module 111, for example. In this case, the cable 135 becomes unnecessary, and the sealing process of the bag body 101 and the sensor module 111 becomes unnecessary.
Further, in the first to fourth embodiments, an example in which one bed exit sensor is used has been described. However, two sensors are used, and if one of them is “ON”, the sensor is not used. A configuration is also conceivable in which the floor is released when both are "off".
In addition, the configuration illustrated is merely an example.

  The present invention provides, for example, a biological information monitoring system that is installed under a mattress of a nursing bed, collects biological information of a user lying on the mattress, such as breathing, heart rate, and pulse, and notifies when an abnormality is detected. In particular, the present invention relates to a device devised so that important events such as death and seizure can be quickly detected, and is suitable for, for example, a biological information monitoring system installed in a nursing bed.

Reference Signs List 1 biological information monitoring system 7 _{1 to} 7 _n user 11 _{1 to} 11 _n bed leaving sensor 13 _{1 to} 13 _n biological information collection sheet 15 ₁ to 15 _n control device 19 host computer 81a plate member 81b plate member 83a to 83e support Member 85 Exit detection switch 97 Projection 101 Bag 105 Air chamber 111 Sensor module 121 Pyroelectric infrared sensor 123 Electronic component (amplifier circuit)

Claims (16)

A bed exit sensor installed under a mattress on which the user lies,
A biological information collection sheet installed under the mattress,
A monitoring device for monitoring the user's leaving / bed and living body information based on the signal from the leaving sensor and the signal from the living body information collecting sheet;
In the biological information monitoring system consisting of
The monitoring device determines the user's leaving / bed based on the signal from the bed leaving sensor, and determines the presence or absence of an important event based on the mixed signal from the biological information collection sheet. When it is determined that there is no important event, to notify various biological information obtained by performing arithmetic processing on the mixed signal from the biological information collection sheet,
The monitoring device outputs an abnormal alarm in the order of leaving bed / bed, cardiopulmonary arrest, body movement, breathing, and pulse based on each determination of leaving bed / bed, cardiopulmonary arrest, body movement, breathing, and pulse. A biological information monitoring system, wherein a lower-level alarm is not output when an alarm is output . The biological information monitoring system according to claim 1,
A biological information monitor characterized in that at the time of the above-mentioned alarm for leaving the bed / in-bed, a process of suppressing a lower alarm is performed so that a lower alarm is not output when an upper alarm is output. system. The biological information monitoring system according to claim 2,
At the time of the above-mentioned warning of cardiopulmonary arrest, body movement, respiration, and pulse, the processing time is set to a predetermined value so that when a higher-level alarm is output, a lower-level alarm is not output. Biological information monitoring system. A bed exit sensor installed under a mattress on which the user lies,
A biological information collection sheet installed under the mattress,
A monitoring device for monitoring the user's leaving / bed and living body information based on the signal from the leaving sensor and the signal from the living body information collecting sheet;
In the biological information monitoring system consisting of
The monitoring device determines the user's leaving / bed based on the signal from the bed leaving sensor, and determines the presence or absence of an important event based on the mixed signal from the biological information collection sheet. When it is determined that there is no important event, to notify various biological information obtained by performing arithmetic processing on the mixed signal from the biological information collection sheet,
The living body information collection sheet includes a bag body provided with a plurality of air chambers, the inside of which is communicated with each other, and provided in a sheet shape as a whole, a sensor provided in the air chamber, and a circuit for amplifying a signal from the sensor. And a sensor module provided on a substrate,
A biological information monitoring system, wherein a plate-shaped pressing member is provided on a surface of the biological information collection sheet on the user side . In the biological information monitoring system according to any one of claims 1 to 4,
A biological information monitoring system , wherein the monitoring device further performs apnea determination . The biological information monitoring system according to claim 5,
The biological information monitoring system according to claim 1, wherein the apnea determination is performed based on a frequency of occurrence of a signal having an amplitude equal to or greater than a predetermined threshold in the mixed signal within a predetermined time . In the biological information monitoring system according to any one of claims 1 to 6,
The determination as to whether or not the user is out of bed is made without determining whether or not the user has left the bed even if the detection time of detection of the off signal among the on / off signals of the above sensor has exceeded a predetermined erroneous detection prevention time. biological information monitoring system to have liftoff detection time detection is characterized and this is intended to determine that the continuous lifting abnormal if exceeding a predetermined continuous lifting time. In the biological information monitoring system according to any one of claims 1 to 6 ,
The leaving / bed determination is made when the leaving detection time of detecting the off signal among the on / off signals of the leaving sensor exceeds a predetermined erroneous detection prevention time, and The biological information monitoring is characterized in that when the occupancy detection time for detecting the ON signal of the on / off signal of the wake-up sensor exceeds a predetermined continuous occupancy time, it is determined to be a continuous occupancy abnormality. system. In the biological information monitoring system according to any one of claims 1 to 6 ,
The determination as to whether or not the user is getting out of bed is made without performing the determination of getting out of bed even when the detection time of getting out of the on / off signal of the above-mentioned getting-out sensor exceeds a predetermined erroneous detection prevention time. When the detected time of leaving the bed exceeds a predetermined continuous time of leaving the bed, it is determined that there is a continuous bed leaving abnormality, and the bed detection time of detecting the ON signal of the ON / OFF signal of the above bed leaving sensor is detected. The biological information monitoring system is characterized in that when a predetermined time in the bed is exceeded, a continuous bed abnormality is determined . The biological information monitoring system according to claim 8 ,
A biological information monitoring system, characterized in that the presence / absence of the notification regarding the leaving-bed determination can be selected . In the biological information monitoring system according to any one of claims 1 to 10 ,
Biological information monitoring system, wherein said monitoring device is a host computer which is controlled apparatus and or remotely located is installed in the vicinity of the mattress. The biological information monitoring system according to claim 11 ,
There are multiple mattresses, and the control device is also installed for each mattress,
A biological information monitoring system, wherein all the control devices are connected to one remotely located host computer . The biological information monitoring system according to claim 12 ,
The control device obtains and informs the biological information, and the remote host computer displays a summary display of various biological information in each control device, and displays various biological information in one specific control device. A biological information monitoring system characterized by switching and displaying detailed information. In the biological information monitoring system according to any one of claims 1 to 13,
The bed leaving sensor includes a pair of plate members installed in parallel, an elastic support member provided between the pair of plate members, and the pair of plate members installed between the pair of plate members. A biological information monitoring system , comprising: a bed exit detection switch selectively pressed via a member . The biological information monitoring system according to claim 14,
A biological information monitoring system , wherein the leaving-of-bed detection switch is provided with a protrusion that comes into contact with the plate-shaped member . The biological information monitoring system according to claim 14 ,
A biological information monitoring system, wherein a predetermined gap is provided between the protrusion of the leaving-bed detection switch and the plate-like member .

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