JP2008027030A - Bed-sore reporting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed-sore reporting system with an inexpensive device constitution and easily used by many cared persons and patients. <P>SOLUTION: The bed-sore reporting system 1 comprises first and mobile transmitters 2a and 2b to be attached to each patient, receivers 3 installed at a plurality of places in a hospital ward, and a monitoring device 4 installed in the nurse center on each floor. The first and second mobile transmitters 2a and 2b detect acceleration on the patient, and pulse wave, heart rate, blood pressure, and blood oxygen saturation level of the patient, and transmit them by radio. The transmitted information is supplied to the monitoring device 4 through the receiver 3, and the monitoring device 4 detects the possibility of the bed-sore of the patient or abnormality based on them, and displays a warning screen. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  [Technical Field] The present invention relates to a bed slip notification system that reports when a person lying down on a bedding has a risk of getting a bed slip.

  Some of the elderly living alone or hospitalized patients stay in bed for a long time, and in order to prevent such caregivers and patients from suffering bed sores, the caregivers or patients regularly It is necessary to change the sleeping posture. Therefore, caregivers, nurses, and the like regularly visit the care recipient's room or the patient's hospital room to change the sleeping posture of the care recipient or patient.

  In Patent Document 1, the body motion of a patient is detected based on fluctuations in the internal pressure of the air mattress, the turnover frequency is determined from the detected body motion of the patient, and the air conditioning unit is operated when the turnover frequency is equal to or less than a predetermined frequency. Switch to dry operation or deflate the air mat, so that the patient suffers from bedsores due to moisture, or the patient's weight is dispersed without concentrating on a single point on the body A system for preventing is disclosed. In addition, in this system, it is disclosed that when a patient's turnover frequency is below a predetermined frequency, a caregiver is notified that the patient is at risk of bed slipping by sounding a buzzer installed in the caregiver's room Has been.

JP 2004-49388 A

  However, in the system of Patent Document 1 as described above, a dedicated air mattress is required to detect the patient's body movement, which is very expensive. In addition, in order to be used by multiple patients, it is necessary to install large equipment such as mattresses, air conditioning units, and equipment control devices in each patient's room, which is difficult to install by caregivers and nurses alone. Met.

  Moreover, since it is the structure which installs a buzzer in a caregiver's or patient's room, if a caregiver is not in these rooms, it cannot notify a caregiver that there is a risk that a patient will suffer from bedsores.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bed slip notification system that can be configured as an inexpensive device and can be easily used by many care recipients and patients. And

  Another object of the present invention is to provide a bed slip notification system that can reliably notify that there is a risk of bed slip even when a caregiver or nurse is out.

  A bed slip notification system according to a first aspect of the present invention includes an acceleration sensor that detects acceleration acting on a lying person lying on bedding, and a portable transmitter that includes a transmission unit that transmits a detection result of the acceleration sensor. A display unit; a receiving unit that receives a detection result of the acceleration sensor; a determination unit that determines whether the recumbent has turned over within a predetermined time based on the received detection result; and the recumbent And a display control unit that controls the display unit to display a warning screen that warns of the occurrence of bed slipping when it is determined that the person has not turned over within a predetermined time. And

  In the said invention, it is preferable that the said portable transmitter is comprised so that mounting | wearing of a recumbent body is possible.

  Moreover, in the said invention, the said determination part is comprised so that it may be determined whether the acceleration which the said acceleration sensor detected exceeds the predetermined threshold value within the said predetermined time, or the acceleration which the said acceleration sensor detected Preferably, the posture of the recumbent is specified based on the above and it is determined whether or not the recumbent takes the substantially same posture for the predetermined time or more.

  Moreover, in the said invention, it is preferable that the said display control part is comprised so that the information regarding the body movement of the lying person may be displayed on the said display part based on the detection result of the said detection part.

  In the above invention, the transmission unit is configured to transmit the specific information identifying the portable transmitter together with the detection result by the acceleration sensor, and the display control unit is received by the reception unit. It is preferable that information for specifying the lying person or the portable transmitter is displayed on the warning screen based on the specific information.

  Moreover, in the said invention, the said portable transmitter is further equipped with the biological state detection part which detects the biological state of a lying person, and the said transmission part further transmits the detection result by the said biological state detection part. The reception unit further receives a detection result of the biological state detection unit, and the determination unit is configured to detect the patient's body based on the biological state detected by the biological state detection unit. It is preferable to further determine whether or not an abnormality has occurred.

  Moreover, in the said invention, the biological state detection apparatus provided further with the biological state detection part which detects the biological state of a lying person, and the transmission part which transmits the detection result of the said biological state detection part, The reception unit further receives the detection result of the biological state detection unit, and the determination unit determines whether an abnormality has occurred in the patient's body based on the biological state detected by the biological state detection unit. It is preferable that it is comprised so that it may further determine.

  Moreover, in the said invention, it is preferable that the said biological state detection part is provided with a pulse wave sensor.

  Moreover, in the said invention, it is preferable that the said biological state detection part is comprised so that at least 1 of a patient's heart rate, blood pressure, and blood oxygen saturation may be detected.

  Moreover, in the said invention, the 2nd transmission which is provided in the room where the said bedding was installed, receives the data transmitted from the said acceleration sensor, and transmits the data received by the said receiving part. It is preferable that the monitoring apparatus is further configured to receive a detection result of the detection unit via the receiver.

  Moreover, in the said invention, the said monitoring apparatus is further provided with the 3rd transmission part which transmits an image request signal, when it determines with the said lying person not turning over within predetermined time by the said determination part, The receiver further includes a third receiving unit that receives the image request signal transmitted from the monitoring device, and an imaging unit that captures at least the interior of the room, and the second transmitting unit includes the third receiving unit. When the image request signal is received, the captured image of the imaging unit is configured to be transmitted, the receiving unit receives the captured image transmitted from the receiver, and the display control unit It is preferable that the captured image is configured to be displayed on the warning screen.

  A bed slip notification system according to a second aspect of the present invention includes a portable transmission provided with an acceleration sensor that detects acceleration acting on a lying person lying on the bedding and a first transmission unit that transmits a detection result of the acceleration sensor. A first receiving unit that receives a detection result of the acceleration sensor, a determination unit that determines whether the recumbent has turned over within a predetermined time based on the received detection result; An information processing apparatus comprising: a second transmission unit that transmits warning information that warns of occurrence of bed slipping when it is determined that the recumbent has not turned over within a predetermined time; a display unit; and the warning A second receiving unit that receives information and a display control unit that displays on the display unit a warning screen that warns of the occurrence of a bed slip when the warning information is received; Mobile phone Characterized in that it obtain.

  According to the bed slip notification system according to the present invention, an inexpensive apparatus configuration can be obtained, and many care recipients and patients can easily use it. In addition, the present invention has an excellent effect, such as being able to reliably notify that there is a risk of bed slipping even when a caregiver or nurse is out.

Hereinafter, a bed slip notification system according to an embodiment of the present invention will be specifically described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a schematic diagram showing a schematic configuration of a bed slip notification system according to Embodiment 1 of the present invention. The bed slip notification system 1 according to the first embodiment is used in a hospital. As shown in FIG. 1, the bed slip reporting system 1 includes a first portable transmitter 2a and a second portable transmitter 2b that are attached to each patient, and receivers 3 that are installed at a plurality of locations in the ward. And a monitoring device 4 installed in a nurse center on each floor. The portable transmitter 2 can detect the acceleration acting on the patient, and periodically transmits the physical state information 2c including the detected acceleration data wirelessly. The second portable transmitter 2b can detect a patient's biological state, that is, pulse wave, heart rate, blood pressure (circulatory state), and blood oxygen saturation (respiratory state). Biological state information 2d indicating such a patient's biological state is periodically transmitted by radio. The receiver 3 is attached to a ceiling or a wall of each room (a hospital room, a toilet, etc.) or a corridor in the ward, and is connected to the monitoring device 4 so that data communication is possible. The receiver 3 receives the physical state information 2c transmitted from the first portable transmitter 2a and the biological state information 2d transmitted from the second portable transmitter 2b, and receives the received physical state. The state information 3a including the information 2c and the biological state information 2d is transmitted to the monitoring device 4. Based on the received status information 3a, the monitoring device 4 determines whether there is a risk that the patient suffers from bedsores and other biological abnormalities, and there is a risk that the patient will suffer from bedsores. If a biological abnormality has occurred, the abnormality detection signal 4a is transmitted to the receiver 3 that is the transmission source of the state information where the abnormality has been detected. The receiver 3 is provided with a camera 31. The camera 31 is driven to start imaging inside the room triggered by the reception of the abnormality detection signal 4a, and the captured image data 31a is monitored by the monitoring device 4. Send to. The monitoring device 4 includes a display unit 42, and displays a warning screen for warning a nurse or a doctor about the occurrence of bed slips or other abnormalities. In this screen, the captured image of the camera 31 is displayed, which allows the nurse or doctor to immediately check what the patient is like (falling, falling from bed, seizure, etc.) can do. Further, in the bed slip notification system 1 according to the present embodiment, the latest physical state information and biological state information (for example, data from 5 minutes before to the present) received by the monitoring device 4 for a predetermined period are stored. It can be displayed on the display unit 42. This allows nurses, doctors, etc. to check the patient's condition at any time and watch over the patient.

[First portable transmitter 2a and second portable transmitter 2b]
FIG. 2 is a schematic view showing a state when the first portable transmitter 2a and the second portable transmitter 2b shown in FIG. 1 are attached to a patient, and FIG. 3 shows the first portable transmitter 2a. It is a block diagram which shows the structure of 2nd portable transmitter 2b. As shown in FIG. 2, the first portable transmitter 2a has a disk shape with a size of about 500 yen, and is a tape on the body surface (chest, etc.) of the patient's torso and near the artery. It is supposed to be pasted with. The second portable transmitter 2b has a wristwatch shape, and includes a main body portion 2c attached to the patient's arm and a sensor portion 2f attached to the patient's finger, and the main body portion 2e. And the sensor portion 2f are connected by a signal cable.

  As shown in FIG. 3, the 1st portable transmitter 2a is provided with the acceleration sensor 21a, the control part 21b which consists of CPU, memory, etc., and the radio | wireless communication part 21c. The first portable transmitter 2a has a built-in battery (not shown), thereby supplying power to the above-described units.

  Each first portable transmitter 2a and second portable transmitter 2b is assigned unique first ID information, and the first portable transmitter 2a stores the first portable transmitter in the memory of the control unit 21b. The 1st ID information which specifies the transmitter 2a and the 2nd portable transmitter 2b is recorded. Such a 1st portable transmitter 2a detects the acceleration which acts on a patient with the acceleration sensor 21a, and transmits physically the physical state information 2c which consists of acceleration data and 1st ID information regularly on radio.

  As shown in FIG. 3, the second portable transmitter 2b includes a main body 2e including a control unit 22a including a CPU, a memory, and the like, and a wireless communication unit 22b. The sensor unit 2f includes a pulse wave sensor. 22c and a blood oxygen saturation sensor 22d. The pulse wave sensor 22c is a reflective optical sensor, and a light emitting element and a light receiving element are provided adjacent to each other. As a result, the light emitted from the light emitting element is reflected / scattered by the artery near the body surface, and the reflected / scattered light is received by the light receiving element. The blood oxygen saturation sensor 22d includes two light-emitting elements that emit light of different wavelengths and a light-receiving element provided on the opposite side of these light-emitting elements. That is, a patient's finger is sandwiched between two light emitting elements and one light receiving element. Thereby, the transmitted light of the light emitted by each light emitting element is received by the light receiving element. With such a configuration, the pulse wave and the blood oxygen saturation are acquired by a known method. Moreover, the 2nd portable transmitter 2b calculates a heart rate and a blood pressure based on a pulse wave by the control part 22a. In the second portable transmitter 2b, the same first ID information as that of the first portable transmitter 2a is also recorded in the memory of the control unit 22a. The second portable transmitter 2b as described above periodically transmits wirelessly the biological state information 2d including the heart rate, blood pressure, blood oxygen saturation, and the first ID information.

[Receiver 3]
FIG. 4 is a perspective view showing the external appearance of the receiver 3, and FIG. 5 is a block diagram showing the configuration of the receiver 3. As shown in FIG. 4, the receiver 2 is attached to a ceiling such as a hospital room, a toilet, and a hallway, and a camera 31 is provided at the lower end thereof. As shown in FIG. 5, the receiver 3 includes a camera 31, a wireless communication unit 32, a wired communication unit 33, and a control unit 34. The receiver 3 is connected to an external commercial power source (not shown), and thereby supplies power to the above-described units. Not only such a configuration but also a configuration in which power is supplied from the monitoring device 4 to the receiver 3 through a communication cable (Ethernet (registered trademark) cable) can be employed.

  The camera 31 has an angle of view (e.g., 180 degrees) that can capture the entire room, and a camera with a stereoscopic projection lens (so-called distortion-free fisheye lens) is used to capture a wide range without distortion. Used to perform image correction. As this camera 31, for example, an ultra wide viewing angle small camera module RPU-C1833 manufactured by Sony Corporation can be used. The camera 31 includes an image sensor such as a CCD or a CMOS, and outputs captured image data. The camera 31 is normally in a dormant state, and starts an imaging operation when receiving the abnormality detection signal 4a.

  The wireless communication unit 32 receives a wireless signal according to a predetermined communication method. The wireless communication unit 32 receives wireless signals (physical state information 2c and biological state information 2d) transmitted from the first portable transmitter 2a and the second portable transmitter 2b.

  The wired communication unit 33 is an Ethernet (registered trademark) communication interface, and performs data communication with the monitoring device 4 according to a predetermined communication protocol.

  The control unit 34 includes a CPU, a ROM, a RAM, and the like, and drives the camera 31, the wireless communication unit 32, and the wired communication unit 33 by executing a control program stored in the ROM. Process the output data. Hereinafter, the configuration of the control unit 34 will be described in more detail. Each receiver 3 is assigned unique second ID information, and the second ID information is stored in the memory of the control unit 34. By using this second ID information, it is possible to specify the receiver 3 (or the position where the receiver 3 is installed). When the wireless communication unit 32 receives the physical state information 2c and the biological state information 2d, the control unit 34 receives the first ID information included in the physical state information 2c and the biological state information 2d, 2D information, acceleration data included in the physical state information 2c, and state information 3a including heart rate data, blood pressure data, and blood oxygen saturation data included in the biological state information 2d are generated. The data is transmitted to the wired communication unit 33. In addition, whether or not the abnormality detection signal 4a is received is monitored, and when the abnormality detection signal 4a is received, the camera 31 in the dormant state is driven to start imaging, and a captured image obtained by this imaging is also obtained. Data 31 a is transmitted from the wired communication unit 32.

[Monitoring device 4]
FIG. 6 is a block diagram illustrating a configuration of the monitoring device 4. As shown in FIG. 1, the monitoring device 4 is configured as a so-called kiosk terminal. That is, the monitoring device 4 is a display (display unit) integrated device, and a touch panel 43 is provided as an input device on the screen of the display unit 42 (see FIG. 6). As shown in FIG. 6, the monitoring device 4 mainly includes a CPU 41a, a ROM 41b, a RAM 41c, a hard disk 41d, an input / output interface 41f, a communication interface 41g, and an image output interface 41h.

  The CPU 41a can execute computer programs stored in the ROM 41b and computer programs loaded in the RAM 41c. The computer 41 a functions as the monitoring device 4 when the CPU 41 a executes a computer program as will be described later.

  The ROM 41b is configured by a mask ROM, PROM, EPROM, EEPROM, or the like, in which computer programs executed by the CPU 41a, data used for the same, and the like are recorded.

  The RAM 41c is configured by SRAM, DRAM, or the like. The RAM 41c is used to read out computer programs recorded in the ROM 41b and the hard disk 41d. Further, when these computer programs are executed, they are used as a work area of the CPU 41a.

  The hard disk 41d is installed with various computer programs to be executed by the CPU 41a, such as an operating system and application programs, and data used for executing the computer programs. In addition, two tables T1 and T2 are stored in the hard disk 41d. In the table T1, the first ID information assigned to each portable transmitter 2 and the patient's name (or information for identifying another patient, for example, a patient number) are stored in association with each other. Further, the table T2 includes the second ID information assigned to each receiver 3, and the position where the receiver is installed (information specifying the position of a hospital room, toilet, and corridor. For example, a hospital room number). Stored in association.

  The input / output interface 41f includes, for example, a serial interface such as USB, IEEE1394, and RS-232C, a parallel interface such as SCSI, IDE, and IEEE1284, and an analog interface including a D / A converter and an A / D converter. ing. A touch panel 43 including a keyboard and a mouse is connected to the input / output interface 41 f, and a user (nurse or doctor) can input data to the computer 2 by using the touch panel 43.

  The touch panel 43 is disposed on the surface of the image display unit 42, and the user can indicate the position by touching the screen with a finger. When the position on the screen is instructed by the user, the touch panel 43 detects this position and transmits position information to the CPU via the input / output interface 41f. The touch panel 43 may be either a pressure sensitive type or a capacitance type. By configuring in this way, a nurse or doctor can achieve a desired input simply by touching the screen according to the instructions displayed on the screen.

  The communication interface 41g is an Ethernet (registered trademark) interface, and the computer 4 transmits / receives data to / from the receiver 3 connected to the communication network NW using a predetermined communication protocol by the communication interface 41g. Is possible.

  The image output interface 41h is connected to an image display unit 42 constituted by an LCD, a CRT or the like, and outputs a video signal corresponding to the image data given from the CPU 41a to the image display unit 42. The image display unit 42 displays an image (screen) according to the input video signal.

  Next, the operation of the bed slip notification system 1 according to Embodiment 5 will be described. 7 and 8 are flowcharts showing the flow of operations of the bed slip notification system 1. First, the acceleration which acts on a patient is detected by the 1st portable transmitter 2a attached to the patient's trunk (Step S1). The control unit 21b stores first ID information for identifying the first portable transmitter 2a in a memory, and causes the wireless communication unit 21c to transmit physical state information 2c including the detected acceleration and the first ID information ( Step S2). Then, the control part 21b returns a process to step S1, acquires the physical state information 2c regularly, and transmits by radio | wireless. Moreover, a patient's pulse wave and blood oxygen saturation are detected by the 2nd portable transmitter 2b attached to the patient's arm part (step S3). The control unit 22a stores the same first ID information as that of the first portable transmitter 2b in the memory, calculates the heart rate and blood pressure from the patient's pulse wave (step S4), and detects the detected heart rate, blood pressure, blood Biological state information 2d including medium oxygen saturation and first ID information is transmitted to the wireless communication unit 22b (step S5). Thereafter, the control unit 22a returns the process to step S3 to periodically acquire the biological state information 2d and transmit it wirelessly.

  The physical state information 2c transmitted from the first portable transmitter 2a and the biological state information 2d transmitted from the second portable transmitter 2b are received by the receiver 3 installed in the vicinity (step) S6). The control unit 34 of the receiver 3 stores the second ID information for identifying the receiver 3 in a built-in memory, and receives the received acceleration, heart rate, blood pressure, blood oxygen saturation, first ID information, and second ID. The state information 3a including the information is transmitted to the wired communication unit 33 (step S7).

  The status information 3a transmitted from the receiver 3 is received by the monitoring device 4 installed in the nurse station (step S8). The CPU 41a of the monitoring device 4 extracts the first ID information and the second ID information included in the state information 3a (step S9), and refers to the tables T1 and T2 to obtain the patient name and the second ID information corresponding to the first ID information. Corresponding position information is acquired (step S10). Next, the CPU 41a of the monitoring device 4 stores the acceleration, heart rate, blood pressure, and blood oxygen saturation included in the received state information in the RAM 41c (step S11). These acceleration, heart rate, blood pressure, and blood oxygen saturation are stored in the RAM 41c as a history for a predetermined period (for example, 5 minutes).

  Next, the CPU 41a executes a bed slip detection process described later (step S12), and executes a biological state abnormality determination process (step S13).

  Here, the bed slip detection process will be described in detail. FIG. 9 is a flowchart showing the procedure of the bed slip detection process. First, the CPU 41a determines whether or not the latest acceleration (acceleration stored in the RAM 41c immediately before) is equal to or greater than a predetermined threshold (step S121). If the acceleration is equal to or greater than a predetermined threshold (in step S121). (Yes), the time is stored in the RAM 41c as a turnover time (step S122), the bed slip detection process is terminated, and the process returns to step S13. If the acceleration is less than the predetermined threshold (No in step S121), the CPU 41a compares the turn time stored in the RAM 41c with the current time, and whether the elapsed time from the previous turn is less than 2 hours. It is determined whether or not (step S123). In step S123, when the elapsed time from the last turning over is less than 2 hours (Yes in step S123), the CPU 41a ends the bed slip detection process and returns the process to step S13. In step S123, when two hours or more have passed since the last turning (No in step S123), the CPU 41a determines that there is a risk of bed slipping in the patient, and performs predetermined bed slip detection. The flag is set (step S124), the bed slip detection process is terminated, and the process returns to step S13.

  Next, the biological state abnormality determination process will be described in detail. FIG. 10 is a flowchart showing the procedure of the biological condition abnormality determination process. First, the CPU 41a differentiates time series data (for example, time series data from 10 seconds before to the present time) of the latest heart rate, blood pressure, and blood oxygen saturation for a predetermined period to obtain heart rate, blood pressure, and blood. The degree of change in oxygen saturation is obtained (step S131). Next, the CPU 41a determines whether or not the differential value of the maximum heart rate in the predetermined period is within a preset first normal range (step S132), and the differential value is out of the first normal range. In this case (No in step S132), a predetermined heartbeat abnormality flag is set (step S133), assuming that an abnormality has occurred in the heartbeat.

  When the differential value of the heart rate is within the first normal range in step S132 (Yes in step S132), or when the process of step S133 is completed, the CPU 41a determines that the maximum differential value of blood pressure during the predetermined period. Then, it is determined whether or not the second normal range is set in advance (step S134), and if the differential value is out of the second normal range (No in step S134), it is assumed that an abnormality has occurred in the heartbeat. A predetermined blood pressure abnormality flag is set (step S135).

  When the differential value of the blood pressure is within the second normal range in step S134 (Yes in step S134), or when the process of step S135 is completed, the CPU 41a determines the maximum blood oxygen saturation level in the predetermined period. Is determined to be within the preset third normal range (step S136). If the differential value is outside the third normal range (No in step S136), blood oxygen saturation is determined. If an abnormality occurs every time, a predetermined blood oxygen saturation abnormality flag is set (step S137). When the differential value of the blood oxygen saturation is within the third normal range in step S136 (Yes in step S136), or when the process of step S137 is completed, the CPU 41a ends the biological state abnormality determination process. The process returns to step S14.

  Thus, by determining the differential value (degree of change) of heart rate, blood pressure, and blood oxygen saturation, and determining that an abnormality has occurred when the differential value deviates from a predetermined normal range, the heart rate, blood pressure, In addition, when an abnormality occurs in the blood oxygen saturation level and the level increases or decreases, the change can be detected at an early stage. That is, when abnormalities occur in the biological state of heart rate, blood pressure, and blood oxygen saturation, the values of the biological state gradually change to an abnormal high value or low value. Therefore, the occurrence of abnormality can be detected quickly by detecting a change in the biological state before the abnormal high value or low value is reached. In addition, since the normal range (absolute value) of heart rate, blood pressure, blood oxygen saturation, etc. differs depending on the individual patient, it is accurate unless a normal range is set for each patient. Abnormality judgment cannot be performed. Therefore, by determining the degree of change in the biological state as described above and determining the abnormality by monitoring the degree of change, it is possible to prevent the abnormality determination from being influenced by individual patient characteristics. For example, in the case of a patient with a relatively high normal blood pressure value, the blood pressure value itself is normal even if it is somewhat high, and in the case of a patient whose normal blood pressure value is relatively low, the blood pressure value itself may be low to some extent. Although both are normal, both can be considered abnormal when the blood pressure value fluctuates and rises. As described above, the abnormality determination result is not affected by the patient-specific characteristics, and accurate abnormality determination can be performed.

  Next, the CPU 41a determines whether any of the bedsore detection flag, the heartbeat abnormality flag, the blood pressure abnormality flag, or the blood oxygen saturation abnormality flag is set (step S14), and the abnormality flag is set. If yes (Yes in step S14), the abnormality detection signal 4a is transmitted to the receiver 3 that is the transmission source of the state information 3a (step S15).

  The abnormality detection signal 4a transmitted from the monitoring device 4 is received by the receiver 3 (step S16). When the abnormality detection signal 4a is received (Yes in step S14), the control unit 34 of the receiver 3 starts the imaging operation by driving the camera in the dormant state (step S17), every predetermined time (for example, 1 second). The image data is acquired (step S18). And the control part 34 transmits the captured image data of the camera 31 to the wired communication part 33 (step S19). The control unit 34 determines whether or not a predetermined time (for example, 10 minutes) has elapsed since the reception of the abnormality detection signal 4a (step S20). If the predetermined time has not elapsed (No in step S20), the control unit 34 performs step S18. The following processing is repeated, and the captured image data is continuously transmitted until the predetermined time has elapsed. If a predetermined time has elapsed since the reception of the abnormality detection signal 4a (Yes in Step S20), or if the abnormality detection signal 4a has not been received in Step S14 (No in Step S14), the process returns to Step S6. .

  The captured image data transmitted from the receiver 3 is received by the monitoring device 4 (step S21). The CPU 41a of the monitoring device 4 displays a warning screen (see FIG. 11), and updates the screen when the warning screen is already displayed (step S22). FIG. 11 is a schematic diagram illustrating an example of a warning screen. As shown in FIG. 11, the warning screen 5 is provided with a message 51 for notifying nurses and doctors that an abnormality has occurred, a patient name 52, and the receiver 3 specified by the second ID information. A position 53 and an image 54 captured by the camera 31 are included. Nurses and doctors can immediately understand that an abnormality has occurred by checking the message 51, and by checking the patient name 52 and position 53, an abnormality can be found in which patient at which location. It is possible to grasp whether or not Also, by confirming the captured image 54, it is possible to visually grasp the patient's condition, and thereby it is possible to quickly grasp whether there is an urgent degree of abnormality or false alarm. The warning screen 5 also displays a confirmation button 55 that can accept input from a nurse or doctor. A nurse, a doctor, or the like confirms that an abnormality has occurred and ends the display of the warning screen by operating the input unit 43 to select the confirmation button 55 (for example, clicking).

  In the above warning screen, when the bed slip detection flag is set, the message 51 “bed slip occurs. Please turn the patient over” is displayed and the heart rate abnormality flag is set. In this case, the message 51 “Heart rate is abnormal” is displayed, and when the blood pressure abnormality flag is set, the message 51 “blood pressure is abnormal” is displayed, and the blood oxygen saturation abnormality flag is set. If it is set, a message 51 “Blood oxygen saturation is abnormal” is displayed. Thereby, a nurse, a doctor, etc. can grasp | ascertain immediately whether there is a danger of bed slipping or what kind of abnormality has arisen. Although not shown, the time series data of acceleration, heart rate, blood pressure, and blood oxygen saturation stored in the RAM 41c may be displayed in a graph display or the like. Thereby, a nurse, a doctor, etc. can grasp the change of the patient's sleeping posture, can grasp the process in which the abnormality occurs, and can grasp the state of the patient immediately before the abnormality occurs.

  An operation in which a nurse, a doctor, or the like confirms that a bed slipping risk or abnormality has occurred, and selects the confirmation button 55 (see FIG. 11) by operating the touch panel 43 when the warning screen is terminated. (Operation for touching confirmation button 55 with a finger) is performed. The CPU 41a determines whether or not an input for selecting the confirmation button 55 has been received (step S23). If the input has not been received (No in step S23), the process returns to step S21 and the latest warning screen is displayed. Update the display. If the confirmation button 55 is selected (Yes in step S23), the process returns to step S8.

  If none of the bedsore detection flag, the heartbeat abnormality flag, the blood pressure abnormality flag, or the blood oxygen saturation abnormality flag is set in step S14 (No in step S14), the CPU 41a The patient's condition can be displayed on the screen. In this case, a list of names of patients who are wearing the first portable transmitter 2a and the second portable transmitter 2b and are measuring acceleration, heart rate, blood pressure, and blood oxygen saturation at that time. Is displayed on the screen of the monitoring device 4 (not shown). A nurse or doctor designates a patient by touching the name of the patient whose condition is to be confirmed with a finger. The CPU 41a determines whether or not the patient is designated in this way (step S24). If the patient is designated (Yes in step S24), the acceleration, heart rate, blood pressure, and blood oxygen of the patient are designated. The time series data of the degree of saturation is read from the RAM 41c, and these time series data are displayed on the screen (not shown) (for example, graph display) (step S25). Thereby, a nurse, a doctor, etc. can grasp the state of the patient at that time, and the patient is watched over. When ending the display of this screen, the user instructs the end by touching an end button (not shown) displayed on the screen with a finger. Then, the CPU 41a determines whether or not an instruction to end the display has been given (step S26). If the user gives an instruction to end the display (Yes in step S26), the process returns to step S8. Also, when no patient is designated in step S24 (No in step S24), the process returns to step S8.

  Further, the first normal range, the second normal range, and the third normal range described above are set for each patient. The first to third normal ranges set for each patient are stored in the table T1 in association with the patient (that is, in association with the first ID information). As described above, by performing the abnormality determination using the differential value of the state information, it is possible to perform the abnormality determination without being influenced by the characteristics of the individual patient. By setting the range corresponding to the patient, individual characteristics of the patient that are included in the differential value of the state information are taken into consideration, and more accurate abnormality determination is possible.

  As described above, since the monitoring device 4 is configured to determine the risk of the patient's bedsore and the abnormality of the biological state, these determination processes, which are complex processes, are executed by the monitoring device 4 with high processing capability. Therefore, the first portable transmitter 2a, the second portable transmitter 2b, and the receiver 3 need only perform simple processing, and the first portable transmitter 2a and the second portable transmitter 2b. And the receiver 3 does not need to use an expensive CPU or the like having a high processing capacity. Therefore, the cost of the first portable transmitter 2a, the second portable transmitter 2b, and the receiver 3 that are required in large numbers can be reduced, and the cost of the entire system can be reduced.

  Further, in the bedsore reporting system 1 according to the first embodiment, acceleration indicating the patient's movement and posture is detected by an acceleration sensor that can be attached to the patient, and the risk of the patient suffering from bedsore is determined by this acceleration. Therefore, for example, it is not necessary to provide a mattress or bed having a function of detecting a patient's body movement, and an inexpensive system can be configured.

  Further, when there is a risk of bedsores in the patient or an abnormality occurs in the biological state, the location (room) is imaged by the camera 31, so that the nurse or doctor confirms the image captured by the camera 31. Thus, it is possible to visually grasp how the patient is lying on the bed. In addition, when the patient falls down or falls from the bed, a nurse, a doctor, or the like can immediately confirm the captured image. It is easy for nurses and doctors to determine the authenticity of abnormality notifications, and it is possible to take appropriate measures according to the situation at that time.

  Further, since the heart rate and blood pressure are calculated by the pulse wave sensor 22 and it is determined whether or not a biological abnormality has occurred in the patient based on these, a detailed abnormality determination is possible, and the portable transmitter 2 is The size can be reduced, so that the patient can keep wearing the second portable transmitter for a long time.

  Further, the bed slip reporting system 1 acquires the patient's posture state by detecting acceleration, acquires the patient's circulatory state by detecting heartbeat and blood pressure, and detects blood oxygen saturation. The patient's respiratory status is acquired by the above, and the posture status (risk of bedsore), the circulatory status, and whether the respiratory status is abnormal or not are determined. The patient's body can be analyzed from various angles to appropriately detect the risk of bedsores and the occurrence of abnormalities.

  In the first embodiment, it is configured to determine whether or not the patient has turned over based on the magnitude of the acceleration. However, the present invention is not limited to this. For example, the posture of the patient is calculated based on the acceleration. And it is good also as a structure which determines whether the patient turned over by determining whether the attitude | position changed.

  In the first embodiment, the configuration is such that the camera 31 is driven to capture an image and the captured image data 31a is transmitted until a predetermined time elapses after the receiver 3 receives the abnormality detection signal 4a. However, the present invention is not limited to this. For example, when a nurse or a doctor performs an operation of selecting the confirmation button 55, a release signal is transmitted from the monitoring device 4 to the receiver 3. However, when the release signal is received, the camera 31 may be shifted to a dormant state and the transmission of the captured image data 31a may be terminated.

  Moreover, in Embodiment 1, although the structure which calculates a patient's heart rate and blood pressure based on the pulse wave detected by the pulse wave sensor 22 was described, it is not limited to this, A heart rate sensor, and You may provide a blood pressure sensor in the 2nd portable transmitter 2b separately, respectively. In addition, for example, a body temperature sensor or an electrocardiogram sensor is provided in the first or second portable transmitter, and the detected body temperature or electrocardiogram is compared with a predetermined normal range in addition to the heart rate, blood pressure, and blood oxygen saturation. It is good also as a structure which determines whether abnormality has arisen in the biological state of a patient by doing.

  Moreover, in Embodiment 1, although it was set as the structure which determines whether abnormality has arisen in the patient's biological condition using a heart rate, blood pressure, and blood oxygen saturation, it is not limited to this. Instead, for example, the pulse wave may be analyzed to determine whether or not an abnormality has occurred in the patient's biological condition, for example, by comparing the pulse wave at normal time with the detected pulse wave.

  In addition, although the camera 31 is provided in the receiver 3 and it is determined that the risk of bed slip or abnormality has occurred, the configuration in which the room 31 is imaged with the camera 31 has been described. However, the present invention is not limited to this. The receiver may be configured to simply transfer the data transmitted from the first portable transmitter and the second portable transmitter to the monitoring device without providing a camera.

(Embodiment 2)
FIG. 12 is a schematic diagram showing a schematic configuration of the bed slip notification system according to Embodiment 2 of the present invention. The bed slip notification system 201 according to the second embodiment is used by a care recipient at home. As shown in FIG. 12, the bed slip notification system 201 includes information installed in the home (room) of the care receiver and the first portable transmitter 202 a and the second portable transmitter 202 b worn by the care recipient. The processing apparatus 203 and a mobile phone 204 used by a caregiver (for example, a care recipient's family) are configured. The first portable transmitter 202a can detect acceleration acting on the cared person and periodically transmits the physical state information 202c including the detected acceleration data wirelessly. The second portable transmitter 202b can detect the biological state of the cared person, that is, pulse wave, heart rate, blood pressure (circulatory state), and blood oxygen saturation (respiratory state). Yes, such biological state information 202d indicating the biological state of the care recipient is periodically transmitted wirelessly. The information processing device 203 is installed in the home of the care recipient, and the physical state information 202c transmitted from the first portable transmitter 202a and the biological state information transmitted from the second portable transmitter 202b. 202d is received, and based on the received physical state information 202c and biological state information 202d, there is no danger of bed slipping in the cared person or a biological abnormality (heart rate, blood pressure, And an abnormality in blood oxygen saturation) is determined, and if there is a danger of bedsores or a biological abnormality, a warning mail is sent to the mobile phone 204 (the mail address of the mobile phone 204). Send to. This warning email contains a message that indicates that the cared person is at risk of bedsores and that a biological abnormality has occurred. , You can know the danger of bed slips and biological anomalies in the cared person, go to the cared person's house and ask them to turn over, or contact the doctor Can take.

[Information processing apparatus 203]
FIG. 13 is a block diagram illustrating a configuration of the information processing apparatus 203. The information processing apparatus 203 is configured by a computer 203a. The computer 203a is mainly composed of a main body 231, an image display unit 232, and an input unit 233. The main body 231 mainly includes a CPU 231a, a ROM 231b, a RAM 231c, a hard disk 231d, a reading device 231e, an input / output interface 231f, a communication interface 231g, an image output interface 231h, and a wireless communication interface 231i. .

  The CPU 231a can execute a computer program stored in the ROM 231b and a computer program loaded in the RAM 231c. Then, the computer 231a executes the computer program as described later, whereby the computer 203a functions as the ascending processor 203.

  The ROM 231b is configured by a mask ROM, PROM, EPROM, EEPROM, or the like, and stores a computer program executed by the CPU 231a, data used for the same, and the like.

  The RAM 231c is configured by SRAM, DRAM, or the like. The RAM 231c is used for reading computer programs recorded in the ROM 231b and the hard disk 231d. Further, when these computer programs are executed, they are used as a work area of the CPU 231a.

  The hard disk 231d is installed with various computer programs to be executed by the CPU 231a, such as an operating system and application programs such as a mail client program, and data used for executing the computer programs. The hard disk 231d stores two tables T1 and T2. In the table T1, the first ID information assigned to each portable transmitter 2 and the patient's name (or information for identifying another patient, for example, a patient number) are stored in association with each other. Further, the table T2 includes the second ID information assigned to each receiver 3, and the position where the receiver is installed (information specifying the position of a hospital room, toilet, and corridor. For example, a hospital room number). Stored in association. In addition, the CPU 231a can execute the mail client program stored in the hard disk 231d to create and send an e-mail.

  The reading device 231e is configured by any one of a flexible disk drive, a CD-ROM drive, and a DVD-ROM drive, and can read a computer program or data recorded on a portable recording medium 234. The portable recording medium 234 stores a computer program 234a for causing the computer to function as a centralized monitoring device. The computer 203a reads the computer program 234a from the portable recording medium 234, and the computer program 234a. Can be installed on the hard disk 231d.

  The computer program 234a is not only provided by the portable recording medium 234, but also from an external device that is communicably connected to the computer 203a through an electric communication line (whether wired or wireless), through the electric communication line. It is also possible to provide. For example, the computer program 234a is stored in the hard disk of a server computer on the Internet. The computer 203a can access this server computer, download the computer program 234a, and install it on the hard disk 231d. is there.

  The input / output interface 231f includes, for example, a serial interface such as USB, IEEE1394, and RS-232C, a parallel interface such as SCSI, IDE, and IEEE1284, and an analog interface including a D / A converter and an A / D converter. ing. An input unit 233 including a keyboard and a mouse is connected to the input / output interface 231f, and a user (nurse or doctor) can input data to the computer 2 by using the input unit 233. is there.

  The communication interface 231g is an Ethernet (registered trademark) interface, and the computer 203a transmits / receives data to / from the receiver 3 connected to the communication network NW using a predetermined communication protocol. Is possible.

  The image output interface 231h is connected to an image display unit 232 configured by an LCD, a CRT, or the like, and outputs a video signal corresponding to the image data given from the CPU 231a to the image display unit 232. The image display unit 232 displays an image (screen) according to the input video signal.

  The wireless communication interface 231i is, for example, a wireless interface of Bluetooth or wireless LAN (IEEE 802.11a, IEEE 802.11b, or IEEE 802.11g), and the computer 203a uses a predetermined communication protocol by the wireless communication interface 231i. Data can be received from the first portable transmitter 202a and the second portable transmitter 202b.

[Mobile phone 204]
FIG. 14 is a block diagram illustrating a configuration of the mobile phone 204. The cellular phone 204 is mainly configured by a control unit 241a, a wireless communication unit 241b, an input unit 241c, an image display unit 241d, a speaker 241e, and a microphone 241f. Although not shown, the mobile phone 204 has a built-in battery, and power is supplied to each of the above-described components by the battery.

  The control unit 241a includes a CPU, a ROM, a RAM, a flash memory, and a signal processing circuit, and controls operations of the wireless communication unit 241b, the input unit 241c, and the image display unit 241d. The control unit 241a stores various computer programs (such as an operating system, a mail client program, and a WWW browser program) in a memory, and can execute these programs.

  The wireless communication unit 241b has an antenna (not shown), receives a signal transmitted from the relay station, and transmits the signal to the relay station. When the received signal is a call signal, this signal is converted into an audio signal, and the audio is output from the speaker 241e. If the received signal is a data communication signal, the received data is passed to the control unit 241a. In addition, the wireless communication unit 241b converts a voice signal input from the microphone 241f during a call into a call signal and transmits the call signal to a relay station. Data such as mail data provided from the control unit 241a is converted into a data communication signal. Is converted and transmitted to the relay station.

  The input unit 241c includes a plurality of input keys, and data can be input by a user operating the input keys. The input data is given to the control unit 241a.

  The image display unit 241d includes an LCD or an LCD drive circuit, receives image data generated by the control unit 241a from the control unit 241a, and displays an image (screen).

  The configurations of the first portable transmitter 202a and the second portable transmitter 202b are the same as the configurations of the first portable transmitter 2a and the second portable transmitter 2b described in the first embodiment. The same components are denoted by the same reference numerals, and the description thereof is omitted.

  Next, the operation of the bed slip notification system 201 according to the second embodiment will be described. FIG. 15 is a flowchart showing an operation flow of the bed slip notification system 201. First, the acceleration which acts on a cared person is detected by the 1st portable transmitter 202a attached to the cared person's trunk | drum (step S201). The control unit 21b causes the wireless communication unit 21c to transmit physical state information 202c (not including the first ID information) including the detected acceleration (step S202). Thereafter, the control unit 21b returns the process to step S201, periodically acquires the physical state information 202c, and transmits it by radio. Further, the pulse wave and blood oxygen saturation of the cared person are detected by the second portable transmitter 202b attached to the arm part of the cared person (step S203). The control unit 22a calculates the heart rate and blood pressure from the pulse wave of the cared person (step S204), and the biological state information 202d including the detected heart rate, blood pressure, and blood oxygen saturation (not including the first ID information). Is transmitted to the wireless communication unit 22b (step S205). Thereafter, the control unit 22a returns the process to step S203 to periodically acquire the biological state information 2d and transmit it wirelessly.

  The physical state information 202c transmitted from the first portable transmitter 202a and the biological state information 202d transmitted from the second portable transmitter 202b are stored in the information processing device 203 installed in the care receiver's house. Received by the wireless communication interface 231i (step S206). The CPU 231a of the information processing apparatus 203 stores the acceleration, heart rate, blood pressure, and blood oxygen saturation included in the received state information in the RAM 41c (step S207), and executes bed slip detection processing (step S208). A state abnormality determination process is executed (step S209). Note that the bedsore detection process S207 and the biological condition abnormality determination process S208 are the same as the bedsore detection process S12 and the biological condition abnormality determination process S13 described in the first embodiment, and thus description thereof is omitted.

  Next, the CPU 231a determines whether any of the bedsore detection flag, the heartbeat abnormality flag, the blood pressure abnormality flag, or the blood oxygen saturation abnormality flag is set (step S210), and the bedshift detection flag and the heartbeat abnormality are determined. If none of the flag, blood pressure abnormality flag, or blood oxygen saturation abnormality flag is set (No in step S210), the process returns to step S206. On the other hand, if any abnormality flag is set in step S210 (step S210 Yes), the CPU 231a creates a warning mail 204a (step S211), and transmits this warning mail 204a through the communication interface 231g (step S210). In step S212, the process returns to step S206. FIG. 16 is a schematic diagram illustrating an example of a configuration of a warning mail. In the warning mail 204a, the mail address of the mobile phone 204 used by the caregiver is designated as the destination 204b. The subject 204c of the warning mail 204a is “warning mail”. Further, in the warning mail 204a, when the bed slip detection flag is set, the body 204d is set to “bed slip occurs. Please turn the caregiver over” and the heart rate abnormality flag is set. In this case, when the body 204d is “Heartbeat is abnormal” and the blood pressure abnormality flag is set, the body 204d is “blood pressure is abnormal” and the blood oxygen saturation abnormality flag is set. In the case, the text 204d is “blood oxygen saturation is abnormal”.

  The mobile phone 204 receives the warning mail (step S213), and displays the warning mail on the screen according to the caregiver (user) operation (step S214) (step S215). Then, the caregiver can check the warning mail to immediately know whether there is a risk of bedsores or what kind of abnormality has occurred. In addition, the information processing apparatus 203 may create a warning mail 204a including a graph of time series data of acceleration, heart rate, blood pressure, and blood oxygen saturation in the body text or attached document, and transmit the warning mail 204a to the mobile phone 204. Good. Thereby, the caregiver can grasp the change in the sleeping posture of the care recipient, can grasp the process in which the abnormality occurs, and can grasp the state of the patient immediately before the abnormality occurs.

  The caregiver confirms that a floor slip risk or abnormality has occurred and, when terminating the display of the warning mail 204a, operates the input unit 241c to instruct the display end of the warning mail 204a. The CPU 41a determines whether or not a display end instruction for the warning mail 204a has been received (step S216). If the instruction has been received (Yes in step S216), the process returns to step S213.

  Note that a camera that captures the inside of the care recipient's room is provided in the information processing apparatus 203, and in step S210, any of the bed slip detection flag, the heartbeat abnormality flag, the blood pressure abnormality flag, and the blood oxygen saturation abnormality flag is set. In such a case, the camera may start imaging and transmit the image to the mobile phone 204. For example, a Web server program is installed on the hard disk 231d, and the information processing apparatus 203 creates HTML data including a captured image of the camera (for example, a format that can be displayed on the mobile phone 204 such as CHTML). Thus, a URL link indicating the location of the HTML data of the information processing apparatus 203 can be embedded in the body of the warning mail 204a. Thereby, the caregiver can access the information processing apparatus 203 by selecting the link of the warning mail, and can visually confirm the state of the care recipient by the captured image of the camera.

  With the configuration described above, if the user owns a personal computer and a mobile phone, the computer functions as the first portable transmitter 202a, the second portable transmitter 202b, and the information processing apparatus. The bed slip notification system 201 according to the second embodiment can be realized simply by purchasing a program for causing the computer to be installed and installing the program in a personal computer. Therefore, it is possible to provide the bed slip notification system 201 at a very low cost.

(Embodiment 3)
FIG. 17 is a schematic diagram showing a schematic configuration of a bed slip notification system according to Embodiment 3 of the present invention. Bed slip notification system 301 according to the third embodiment is used by a care recipient at home. As shown in FIG. 17, the bed slip notification system 301 includes a portable transmitter 302 to be worn by a care recipient, an information processing device 303 installed in a facility of a trader dispatching caregivers such as a care center, The mobile phone 304 is used by a caregiver (for example, a home helper registered in a care center or a home helper of a care center employee). The portable transmitter 302 can detect the acceleration acting on the cared person, and the biological state of the cared person, that is, pulse wave, heart rate, blood pressure (circulatory state), and blood oxygen. The degree of saturation (respiratory condition) can be detected, and state information 302c indicating the detected acceleration, heart rate, blood pressure, and blood oxygen saturation is periodically transmitted wirelessly. The information processing device 303 receives the state information 302c transmitted from the portable transmitter 302, and based on the received state information 302c, the care recipient is not at risk of bed slip or It is determined whether biological abnormalities (abnormalities in heart rate, blood pressure, and blood oxygen saturation) have occurred. The information processing apparatus 303 transmits a warning mail to the mobile phone 304 (the mail address of the mobile phone 204) when the danger of bedsores or a biological abnormality has occurred. This warning email contains a message that indicates that the cared person is at risk of bedsores and that a biological abnormality has occurred. , You can know the danger of bed slips and biological anomalies in the cared person, go to the cared person's house and ask them to turn over, or contact the doctor Can take.

[Portable transmitter 302]
FIG. 18 is a schematic diagram illustrating a state where the portable transmitter 302 illustrated in FIG. 17 is attached to a patient, and FIG. 19 is a block diagram illustrating a configuration of the portable transmitter 302. As shown in FIG. 18, the portable transmitter 302 includes a main unit 302a and an acceleration sensor unit 302b. The acceleration sensor unit 302b has a disk shape with a size of approximately 500 yen, and is attached to the body surface of the patient near the artery (such as the chest) with tape or the like. The main unit 302a has a wristwatch shape and is attached to a patient's arm.

  As shown in FIG. 19, the acceleration sensor unit 302b includes an acceleration sensor 321a, a control unit 321b including a CPU, a memory, and the like, and a short-range wireless communication unit 321c. The acceleration sensor unit 302b has a built-in battery (not shown), and supplies power to the above-described units. Such an acceleration sensor unit 302b detects acceleration acting on the patient by the acceleration sensor 321a. The short-range wireless communication unit 321c is a Bluetooth communication interface, and periodically transmits the acceleration data 302d detected by the acceleration sensor 321a wirelessly (see FIG. 18).

  As shown in FIG. 19, the main unit 302a includes a control unit 322a including a CPU, a memory, and the like, a short-range wireless communication unit 322b, a long-range wireless communication unit 322c, and a pulse wave / blood oxygen saturation sensor. 322d. The pulse wave / blood oxygen saturation sensor 322d is a reflective optical sensor, and a light emitting element and a light receiving element are provided adjacent to each other. As a result, the light emitted from the light emitting element is reflected / scattered by the artery near the body surface, and the reflected / scattered light is received by the light receiving element. With such a configuration, the pulse wave and the blood oxygen saturation are acquired by a known method. In addition, the main body unit 302a calculates a heart rate and a blood pressure based on the pulse wave by the control unit 322a. The short-range wireless communication unit 322b is a Bluetooth communication interface, and receives acceleration data transmitted from the acceleration sensor unit 302b. Unique ID information is assigned to the portable transmitter 302, and ID information for identifying the portable transmitter 302a is recorded in the memory of the control unit 322a of the main unit 302a. The long-distance wireless communication unit 322c is a wireless communication interface for mobile phones such as CDMA and PIAFS or for PHS. The care recipient has subscribed to a cellular phone or PHS service, and can transmit data to the cellular phone or PHS network from the long-distance wireless communication unit 322c. The main body unit 302a periodically transmits the state data 302c including the acceleration data received from the acceleration sensor unit 302b, the calculated heart rate data and blood pressure data, and the above-described ID information to the information processing device 303 as a destination. It transmits by radio from the communication unit 322c (see FIG. 18).

[Information Processing Device 303]
FIG. 20 is a block diagram illustrating a configuration of the information processing apparatus 303. The information processing apparatus 303 is configured by a computer 303a. The computer 303a mainly includes a main body 331, an image display unit 332, and an input unit 333. The main body 331 mainly includes a CPU 331a, a ROM 331b, a RAM 331c, a hard disk 331d, a reading device 331e, an input / output interface 331f, a communication interface 331g, and an image output interface 331h. The configurations of the CPU 331a, the ROM 331b, the RAM 331c, the reading device 331e, the input / output interface 331f, the communication interface 331g, and the image output interface 331h are the same as the configuration of each unit described in the second embodiment, and thus the description thereof is omitted. .

  The hard disk 331d is installed with various computer programs to be executed by the CPU 41a, such as a computer program 334a for causing the operating system and the computer to function as the information processing apparatus according to the third embodiment, and data used for executing the computer program. Has been. A table T is stored in the hard disk 41d. In the table T, the ID information assigned to each portable transmitter 302, the name of the cared person (or information identifying another cared person, for example, the patient number), and the caregiver in charge of the cared person The name of the caregiver and the e-mail address of the caregiver are stored in association with each other.

  Note that the configuration of the mobile phone 304 is the same as the configuration of the mobile phone 204 described in Embodiment 2, and thus the same components are denoted by the same reference numerals and the description thereof is omitted.

  Next, operation | movement of the bed slip notification system 301 concerning Embodiment 3 is demonstrated. FIG. 21 is a flowchart showing an operation flow of the bed slip notification system 301. First, the acceleration acting on the cared person is detected by the acceleration sensor unit 302b attached to the body of the cared person (step S301). The control unit 321b transmits the detected acceleration data to the short-range wireless communication unit 321c (step S302). After that, the control unit 321b returns the process to step S301, periodically acquires acceleration data, and transmits it by radio. The acceleration data is received by the main unit 302a attached to the arm of the care recipient (step S303). The control unit 322a of the main unit 302a acquires the care receiver's pulse wave and blood oxygen saturation with the pulse wave / blood oxygen saturation sensor 322d (step S304). The control unit 322a calculates the heart rate and blood pressure from the cared person's pulse wave (step S305), and includes the acceleration, heart rate, blood pressure, blood oxygen saturation, and ID information stored in the memory of the control unit 322a. The state information 302c is transmitted to the long-range wireless communication unit 322c with the information processing apparatus 303 as the destination (step S306). Thereafter, the control unit 322a returns the process to step S303, periodically acquires the biological state information 302d, and wirelessly transmits it.

  The state information 302c transmitted from the portable transmitter 302 is transmitted to the information processing apparatus 303 via the network for the mobile phone, and is received by the communication interface 331g of the information processing apparatus 303 (step S307). The CPU 331a of the information processing device 303 extracts the ID information included in the state information 302c (step S308), refers to the table T, and acquires the name of the care recipient and the e-mail address of the caregiver corresponding to the ID information. (Step S309). Then, the CPU 331a of the information processing device 303 stores the acceleration, heart rate, blood pressure, and blood oxygen saturation included in the received state information in the RAM 41c (step S310), and executes bed slip detection processing (step S311). Then, the biological condition abnormality determination process is executed (step S312). The bed slip detection process S311 and the biological condition abnormality determination process S312 are the same as the bed slip detection process S12 and the biological condition abnormality determination process S13 described in the first embodiment, and thus description thereof is omitted.

  Next, the CPU 331a determines whether any of the bedsore detection flag, the heartbeat abnormality flag, the blood pressure abnormality flag, or the blood oxygen saturation abnormality flag is set (step S313), and the bedshift detection flag and the heartbeat abnormality are determined. If none of the flag, blood pressure abnormality flag, or blood oxygen saturation abnormality flag is set (No in step S313), the process returns to step S307. On the other hand, if any abnormality flag is set in step S313 (Yes in step S313), the CPU 331a creates a warning mail 304a (step S314) and transmits this warning mail 304a through the communication interface 331g. (Step S315). FIG. 22 is a schematic diagram showing a configuration of a warning mail. In the warning mail 304a, the mail address of the caregiver is designated as the destination 304b. The subject 304c of the warning mail 304a is “warning mail”. The body 304d of the warning mail 304a includes a care recipient's name 304e and a warning message 304f. When the bed slip detection flag is set, the warning message 304f is “bed slip occurs. Please turn caregiver over.” If the heart rate abnormality flag is set, If the heart rate is abnormal ”and the blood pressure abnormality flag is set,“ blood pressure is abnormal ”, and if the blood oxygen saturation abnormality flag is set,“ blood oxygen saturation ” The degree is abnormal. "

  Note that the processing in steps S316 to S319 is the same as the processing in steps S212 to S215 described in the second embodiment, and thus the description thereof is omitted. The caregiver can immediately identify a patient having a risk of bed slipping or a biological abnormality by checking the warning mail as described above. In the above description, the patient's name is notified to the caregiver by a warning mail. For example, in the table T, the patient's address, telephone number, and the doctor's contact information are recorded together with the patient's name. The body of the warning mail may include the patient's address, telephone number, emergency contact information (such as family contact information), and contact information of the attending physician. As a result, the caregiver can quickly go to the home of the cared person, and can take various measures such as contacting the attending physician or contacting the emergency contact information when an emergency is required.

  The bed slip notification system according to the present invention can have an inexpensive device configuration, can be easily used by many care recipients and patients, and even if the caregiver or nurse is out, This produces the effect of being able to reliably notify that there is a risk of the occurrence of a bed, and is useful as a bed slip notification system.

It is a schematic diagram which shows schematic structure of the bed slip notification system which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows a mode when the 1st portable transmitter and 2nd portable transmitter shown in FIG. 1 are mounted | worn with the patient. It is a block diagram which shows the structure of the 1st portable transmitter and 2nd portable transmitter which are shown in FIG. It is a perspective view which shows the external appearance of the receiver shown in FIG. It is a block diagram which shows the structure of the receiver shown in FIG. It is a block diagram which shows the structure of the monitoring apparatus shown in FIG. 4 is a flowchart showing a flow of operations of the bed slip notification system according to Embodiment 1; 4 is a flowchart showing a flow of operations of the bed slip notification system according to Embodiment 1; It is a flowchart which shows the procedure of a bed slip detection process. It is a flowchart which shows the procedure of a biological condition abnormality determination process. It is a schematic diagram which shows an example of a warning screen. It is a schematic diagram which shows schematic structure of the bed slip notification system which concerns on Embodiment 2 of this invention. It is a block diagram which shows the structure of the information processing apparatus shown in FIG. It is a block diagram which shows the structure of the mobile telephone shown in FIG. 6 is a flowchart showing a flow of operations of the bed slip notification system according to the second embodiment. It is a schematic diagram which shows an example of a structure of a warning mail. It is a schematic diagram which shows schematic structure of the bed slip notification system which concerns on Embodiment 3 of this invention. It is a schematic diagram which shows a mode when the portable transmitter shown in FIG. 17 is mounted | worn with the patient. It is a block diagram which shows the structure of the portable transmitter shown in FIG. It is a block diagram which shows the structure of the information processing apparatus shown in FIG. 12 is a flowchart showing a flow of operations of the bed slip notification system according to the third embodiment. It is a schematic diagram which shows an example of a structure of a warning mail.

Explanation of symbols

1, 201, 301 Bed slip notification system 2a, 202a First portable transmitter 21a Acceleration sensor 2b, 202b Second portable transmitter 22c Pulse wave sensor 22d Blood oxygen saturation sensor 3 Receiver 4 Monitoring device 203, 303 Information Processing device 204, 304 Mobile phone

Claims (13)

A portable transmitter including an acceleration sensor that detects acceleration acting on a lying person lying on the bedding, and a transmission unit that transmits a detection result of the acceleration sensor;
A display unit; a receiving unit that receives a detection result of the acceleration sensor; a determination unit that determines whether the recumbent has turned over within a predetermined time based on the received detection result; A monitoring device comprising a display control unit that controls the display unit to display a warning screen that warns of occurrence of bed slipping when it is determined that the person has not turned over within a predetermined time;
Bed slip reporting system.   The bed slip notification system according to claim 1, wherein the portable transmitter is configured to be attachable to a body of a lying person.   The bed slip notification system according to claim 1 or 2, wherein the determination unit is configured to determine whether or not an acceleration detected by the acceleration sensor exceeds a predetermined threshold within the predetermined time.   The determination unit specifies the posture of the lying person based on the acceleration detected by the acceleration sensor, and determines whether the lying person has taken the substantially same posture for the predetermined time or more. The bed slip notification system according to claim 1 or 2, which is configured as described above.   5. The bed slip notification according to claim 1, wherein the display control unit is configured to display information on the body movement of the lying person on the display unit based on a detection result of the detection unit. system. The transmission unit is configured to transmit specific information for identifying the portable transmitter, together with a detection result by the acceleration sensor,
The said display control part is comprised so that the information which specifies the said lying person or the said portable transmitter may be displayed on the said warning screen based on the specific information which the said receiving part received. Bed slip reporting system according to any one of the above. The portable transmitter further includes a biological state detection unit that detects the biological state of the lying person,
The transmission unit is configured to further transmit a detection result by the biological state detection unit,
The receiving unit further receives a detection result of the biological state detection unit,
The said determination part is comprised so that it may further determine whether abnormality has generate | occur | produced in the patient's body based on the biological state which the said biological state detection part detected. The bed slip notification system described in 1. A biological state detection device further comprising a biological state detection unit that detects a biological state of a lying person and a transmission unit that transmits a detection result of the biological state detection unit;
The receiving unit further receives a detection result of the biological state detection unit,
The said determination part is comprised so that it may further determine whether abnormality has generate | occur | produced in the patient's body based on the biological state which the said biological state detection part detected. The bed slip notification system described in 1.   The bed slip notification system according to claim 7 or 8, wherein the biological state detection unit includes a pulse wave sensor.   The bed slip notification system according to any one of claims 7 to 9, wherein the biological state detection unit is configured to detect at least one of a heartbeat, blood pressure, and blood oxygen saturation of a patient. A receiver provided in a room in which the bedding is installed, the receiver including a second receiver that receives data transmitted from the acceleration sensor, and a second transmitter that transmits data received by the receiver; In addition,
The bed slip notification system according to any one of claims 1 to 10, wherein the monitoring device is configured to receive a detection result of the detection unit via the receiver. The monitoring device further includes a third transmission unit that transmits an image request signal when the determination unit determines that the recumbent has not turned over within a predetermined time period,
The receiver further includes a third receiving unit that receives an image request signal transmitted from the monitoring device, and an imaging unit that images at least the interior of the room,
The second transmission unit is configured to transmit a captured image of the imaging unit when the third reception unit receives an image request signal,
The receiving unit receives a captured image transmitted from the receiver,
The bed slip notification system according to claim 11, wherein the display control unit is configured to display the captured image on the warning screen. A portable transmitter comprising: an acceleration sensor that detects acceleration acting on a lying person lying on the bedding; and a first transmitter that transmits a detection result of the acceleration sensor;
A display unit; a first receiving unit configured to receive a detection result of the acceleration sensor; a determination unit configured to determine whether the recumbent has turned over within a predetermined time based on the received detection result; An information processing apparatus comprising: a second transmission unit that transmits warning information that warns of occurrence of a bed slip when it is determined that the person has not turned over within a predetermined time;
A display unit; a second receiving unit that receives the warning information; and a display control unit that displays a warning screen that warns of occurrence of a bed slip when the warning information is received. A mobile phone owned by a caregiver who cares;
Bed slip reporting system.

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