CN112712876A - Image recording system, image recording method, and image recording program - Google Patents
Image recording system, image recording method, and image recording program Download PDFInfo
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- G—PHYSICS
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Abstract
Provided is an image recording system capable of providing biological information in which an abnormality has occurred, and image information and voice information synchronized with the biological information for clinical judgment. The image recording system (1) of the invention is provided with a patient terminal (10) for transmitting biological information acquired from a measuring instrument and a management server (20) for receiving and storing the biological information, wherein the patient terminal or the management server is provided with a determination part (14) for determining the abnormity of the biological information, the patient terminal is provided with image recording units (15), (17) and a voice recording unit (18) for recording the condition of a patient, when the biological information is determined to be abnormal, the management server comprises a recording unit (13) for recording video information and audio information from the time of occurrence of an abnormality until a first recording time (T) elapses, a first communication unit (12) for transmitting the video information and audio information, and a time stamp for synchronizing the video information and audio information with biological information to the management server, and a storage unit (23) for storing the received video information, audio information, and time stamp.
Description
Technical Field
The present invention relates to an image recording system, an image recording method, and a recording medium on which an image recording program is recorded, and more particularly, to an image recording system, an image recording method, and a recording medium on which an image recording program is recorded, which record a state of a patient as image information and voice information to perform diagnosis and treatment.
Background
In recent years, in the medical field, the remote medical field using a communication device or the like has been put to practical use. Remote medical care refers to a medical staff such as a doctor or a nurse using a medical staff terminal to check the state of a patient from a physically remote location (referred to as a remote medical center herein) and to perform diagnosis. In addition, remote medical treatment also comprises the inquiry of medical staff and patients through the pictures of the terminals and face-to-face bidirectional communication.
Typically, videophone systems (also known as video call systems) are used in two-way communication in face-to-face. However, in the case of a patient who does not necessarily have a high ADL (Activities of daily living), such as a medical patient at home, the patient may be seriously ill or critically ill and unable to respond in some cases. In recent years, in anticipation of such a situation requiring emergency rescue, a system for "guarding a patient" and "guarding an elderly person" has been developed. However, it is difficult to predict when such a situation requiring emergency rescue comes, and in the case requiring emergency rescue, it is difficult to say that the function of the video call system can be effectively utilized in time, although it is important to observe the condition of the patient.
Although the image and voice captured of the state of the patient at a moment when the main cause of emergency rescue occurs are very important, they are lost in the past, and therefore, even if necessary for clinical judgment, they may not be flexibly used.
Patent document 1: japanese laid-open patent publication No. 2013-167993
Disclosure of Invention
In the system described in patent document 1, although live video and biometric information are synchronized, there is no consideration given to the playback of video information and audio information that is useful in diagnosis and that is synchronized with an indication of the timing of an alarm of biometric information.
The present invention has been made in view of the above problems, and it is an object of the present invention to provide an image recording system, an image recording method, and a recording medium recording an image recording program, which are capable of providing biological information (vital signs) in which an abnormality occurs, and image information and voice information synchronized with the biological information for clinical judgment.
The problem is solved by the following means. An image recording system including a patient terminal for transmitting biological information acquired from a measuring device for measuring biological information of a patient, and a management server; the management server is connected to the patient terminal via a communication line, and receives and stores the biological information from the patient terminal via the communication line. The patient terminal or the management server has a determination unit for determining abnormality of the biological information, and the patient terminal includes an image recording unit for recording a state of the patient as image information, a voice recording unit for recording a state of the patient, and a first communication unit for communicating the state of the patient with the voice recording unit; the voice recording unit records the state of the patient as voice information; the recording part records the image information and the voice information from the abnormal occurrence time point of the abnormality until a first recording time elapses by the image recording unit and the voice recording unit when the judgment part judges that the biological information is abnormal; the first communication unit transmits the image information and the voice information, and a time stamp synchronizing the image information and the voice information with the biological information to the management server, the management server includes a storage unit storing the image information, the voice information, and the time stamp received from the patient terminal via the communication line, the recording unit of the patient terminal continuously records the image information and the voice information via the image recording unit and the voice recording unit, and when the determination unit determines that the biological information is abnormal, the image information and the voice information recorded from the time point of occurrence of the abnormality to the time point of occurrence of the abnormality are not erased and stored, and the first communication unit stores the image information and the voice information stored from the time point of occurrence of the abnormality to the time point of the abnormality together with the time stamp to the management server And a server transmitting unit that stores the video information, the audio information, and the time stamp recorded from the second recording time to the abnormality occurrence time point, which are received from the patient terminal via the communication line.
The above problem is solved by the following means. An image recording method using a patient terminal and a management server, the patient terminal having an image recording unit and a voice recording unit, the image recording unit transmitting biological information acquired from a measuring device that measures the biological information of a patient and recording a state of the patient as image information; the voice recording unit records the state of the patient as voice information, the management server is connected with the patient terminal through a communication line and receives and stores the biological information from the patient terminal through the communication line, the patient terminal or the management server comprises an abnormality determination step, an information recording step before abnormality occurrence, an information recording step after abnormality occurrence, an information transmission step and an information storage step, and the abnormality determination step determines the abnormality of the biological information; a pre-abnormality information recording step of continuously recording the image information and the voice information in the patient terminal, and storing the image information and the voice information recorded from an abnormality occurrence time point to a second recording time point when the patient terminal or the management server determines that the biological information is abnormal, without removing the image information and the voice information; in the post-abnormality information recording step, when the patient terminal or the management server determines that there is an abnormality in the biological information, the image information and the voice information recorded from the time of occurrence of the abnormality until a first recording time elapses are recorded by the image recording unit and the voice recording unit of the patient terminal; transmitting the video information and the audio information recorded by the patient terminal and a time stamp for synchronizing the biological information with the video information and the audio information to the management server; the information storing step stores the image information, the voice information, and the time stamp received by the management server from the patient terminal via the communication line.
The above problem is solved by the following means. A recording medium recording an image recording program that is executed as a program by a patient terminal having an image recording unit that transmits biological information acquired from a measuring instrument that measures biological information of a patient and records a state of the patient as image information, and a voice recording unit, and a management server; the voice recording unit records the state of the patient as voice information, the management server is connected with the patient terminal through a communication line and receives and stores the biological information from the patient terminal through the communication line, the image recording program comprises an abnormality determination step, an information recording step before abnormality occurrence, an information recording step after abnormality occurrence, an information transmission step and an information storage step, and the patient terminal or the management server determines the abnormality of the biological information in the abnormality determination step; a pre-abnormality information recording step of continuously recording the image information and the voice information in the patient terminal, and storing the image information and the voice information recorded from an abnormality occurrence time point to a second recording time point when the patient terminal or the management server determines that the biological information is abnormal, without removing the image information and the voice information; in the post-abnormality information recording step, when the patient terminal or the management server determines that there is an abnormality in the biological information, the image information and the voice information recorded from the time point of occurrence of the abnormality until a first recording time elapses are recorded by the image recording unit and the voice recording unit of the patient terminal; transmitting the video information and the audio information recorded by the patient terminal and a time stamp for synchronizing the biological information with the video information and the audio information to the management server; the information storing step stores the image information, the voice information, and the time stamp received by the management server from the patient terminal via the communication line.
In the video recording system, the video recording method, and the recording medium on which the video recording program is recorded according to the present invention configured as described above, when it is determined that there is an abnormality in the biological information, the video information and the audio information are recorded from the time when the abnormality occurs until the first recording time elapses, and the recorded video information and audio information are transmitted to the management server together with the time stamp, and these pieces of information are stored in the management server. The medical staff can use the biological information of the patient and the video information and the voice information synchronized with the biological information for clinical judgment.
Further, by storing the image information and the voice information from the time of occurrence of the abnormality to the second recording time in the management server, the medical staff can confirm the state of the patient before the occurrence of the abnormality and can use these pieces of information for clinical judgment.
In the above-described image recording system, the first recording time and the second recording time are preferably set according to the type of the biological information abnormality.
The medical staff can observe the patient more carefully by setting the first recording time and the second recording time according to the type of the biological information abnormality.
In addition, in the case where a preferable configuration of the image recording system according to the present invention is described, it is preferable that the image recording unit of the patient terminal is configured by a plurality of cameras having different angles of view.
Through using a plurality of cameras that the visual angle is different, can follow each angle record patient, medical personnel can observe the patient more meticulously.
In addition, in the case of explaining a preferred configuration of the image recording system according to the present invention, it is preferable that the image recording system further includes a medical staff terminal connected by communication with the management server and the patient terminal, and the management server includes a control unit and a second communication unit, and the control unit searches the biological information, the image information, the voice information, and the time stamp stored in the storage unit based on the playback request when the playback request is received from the medical staff terminal by the communication; a second communication unit that transmits the biological information, the image information, the voice information, and the time stamp, which are the results of the search by the control unit, to the medical staff terminal, the medical staff terminal including a third communication unit that receives the biological information, the image information, the voice information, and the time stamp from the management server, a display unit, and a voice output unit; a display unit that synchronizes and displays the biological information and the video information received from the management server with the time stamp; the voice output unit synchronizes and outputs the biometric information and the time stamp displayed on the display unit with the voice information received from the management server.
According to the above configuration, the medical care worker can check the image information and the voice information synchronized with the biological information using the medical care worker terminal. The medical staff can use the information for clinical judgment by looking up the image information and the voice information which are synchronous with the biological information.
In addition, in the case of explaining a preferred configuration of the video recording system according to the present invention, it is preferable that the playback request is a playback time at which the medical staff desires to play back the video.
According to the above configuration, the medical staff can confirm the state of the patient in the past when the abnormality occurs by the image information and the voice information.
In the video recording system according to the present invention, it is preferable that the broadcast request is a specific record selected by a medical staff from an abnormality history of biological information that has occurred in the past, and the control unit of the management server searches the biological information, the video information, the audio information, and the time stamp stored in the storage unit based on a time at an abnormality occurrence time point of the selected specific record.
According to the above configuration, the medical staff can view the biological information and the video information and the audio information synchronized with the biological information by selecting the specific record from the history of the biological information in which the abnormality occurs. It is easy to view video information and voice information synchronized with biological information, which enables medical staff to make clinical judgment in a short time.
According to the image recording system, the image recording method, and the recording medium recording the image recording program of the present invention, the image information and the voice information synchronized with the biological information in which the abnormality occurs are accumulated in the management server. Therefore, for example, the medical staff can use the image information and the voice information stored in the management server for clinical judgment by synchronizing and referring to the information and the biological information.
Drawings
Fig. 1 is a conceptual diagram illustrating a configuration of a video recording system according to an embodiment of the present invention.
Fig. 2 is a block diagram showing a basic configuration of each device constituting the image recording system according to the embodiment of the present invention.
Fig. 3 is a flowchart showing a process of recording video information and audio information.
Fig. 4 is a graph showing the recording time of video information and audio information recorded when an abnormality occurs.
Fig. 5 is a diagram showing the setting contents for each abnormality type.
Fig. 6 is a graph showing recording times of video information and audio information recorded when two abnormalities occur.
Fig. 7 is a configuration diagram for simultaneously processing video call and recording of video information and audio information.
Fig. 8 is a flowchart showing a process of synchronously displaying biological information, video information, and audio information using the video recording system.
Fig. 9 is a schematic diagram showing a display unit and a voice output unit of the medical terminal.
Detailed Description
Hereinafter, one embodiment of the present invention (hereinafter, this embodiment) will be described. The embodiment described below is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. That is, it is needless to say that the present invention includes equivalents thereof as well as changes and improvements without departing from the gist thereof.
In the following description, the video recording system and the video recording method according to the present invention are described, but the video recording method may be implemented as a program executable by a computer, or the program may be recorded on a recording medium readable by a computer.
The video recording system 1 according to the present embodiment will be described with reference to fig. 1 and 2. The image recording system 1 is composed of a patient terminal 10, a management server 20 for storing image information and voice information captured and recorded by the patient terminal 10, and a communication line 3 for connecting the two. The patient terminal 10 and the management server 20 can transmit and receive data to and from each other via the communication line 3.
Assuming that the internet is the communication line 3, the image recording system 1 may be constructed on the internet set in a hospital.
The image recording system 1 is also a part of a remote medical system for a medical staff to perform remote medical treatment, and a doctor terminal 30 (medical staff terminal) can be connected to the communication line 3. By transmitting the biological information and the request for playing the video information and the audio information synchronized with the biological information from the doctor terminal 30 to the management server 20, the management server 20 synchronizes the stored biological information with the video information and the audio information and displays the information on the doctor terminal 30. In the remote medical system and the image recording system 1, the patient terminal 10 and the doctor terminal 30 are not limited to one, and a plurality of terminals may be prepared, and a plurality of patients and doctors use the terminals, respectively, and here, a case where one patient terminal 10 and one doctor terminal 30 are used will be described.
The patient terminal 10, the management server 20, and the doctor terminal 30 may be dedicated devices, or may be implemented by installing dedicated programs in general-purpose information terminals such as communicatable computers, mobile phones, smartphones, and tablet computers.
The management server 20 and the doctor terminal 30 are constructed on the internet in the remote medical center, and can be connected to the patient terminal 10 on the internet through a gateway, and the network configuration is not limited to the configuration shown in fig. 1.
The patient terminal 10 is connected to a plurality of measuring instruments 40, an internal camera 15 for taking an image of the patient 5, an external camera (external camera 17) having a different angle of view from the internal camera 15, and a microphone 18 for recording the voice of the patient 5. The internal camera 15 and the external camera 17 are provided as an image recording unit, and the microphone 18 is provided as a voice recording unit. Although the microphone 18 is an external microphone in the present embodiment, a microphone incorporated in the patient terminal 10 may be used as the voice recording unit. Further, by connecting the external camera 17 having a different angle of view from the internal camera 15, it is possible to record the image information of the patient 5 in a range different from the imaging range of the internal camera 15. For example, the internal camera 15 can image the face of the patient, and the external camera 17 can image the whole body of the patient. The plurality of measuring devices 40 connected to the patient terminal 10 are devices for acquiring biological information of the patient and environmental information around the patient.
The measuring device 40 is classified into a sensor incorporated in the patient terminal 10 and a sensor disposed around the patient separately from the patient terminal 10. The separate sensor is of a type that a chair or a bed, etc. contacts the human body or of a type that is directly mounted to each part of the human body and can detect biological information. The measuring device 40 further includes a sensor for measuring environmental information around the patient, such as temperature and humidity.
The biological information is information that quantitatively displays movement of organs constituting the human body, such as blood pressure, pulse, brain wave, and the like. The biological information measuring device includes, for example, a thermometer, a pulse meter, a perspiration meter, and the like provided at a grip portion of the patient terminal 10. In addition, a blood flow meter, an electroencephalograph, an eye movement sensor, an electrocardiogram, a vibration gyroscope, an acceleration sensor, a skin temperature sensor, a human body movement acceleration sensor, a skin conductivity sensor, a pulsimeter, a sphygmomanometer, a respiration sensor, a pupil diameter sensor, an inclination sensor, a blood oxygen saturation sensor, and the like are included which are attached to a part of the body of a patient. A thermal imaging, a weighing machine, or a breathing machine is provided as the measuring device 40 installed in a chair, a bed, or the like, and pulse, breath, and weight are extracted based on a change in pressure.
Further, the built-in camera 15 and the external camera 17 may be used as a measurement sensor, and for example, the motion, the change in expression, the motion of the eyeball, and the like of a person may be extracted from the captured image, and the extracted result may be recorded as the biological information. In addition, the state of the patient may be extracted from the voice information collected by the microphone 18 and recorded as biological information.
The device for measuring environmental information includes a thermometer, a barometer, an altimeter, a luminance meter for measuring luminance (brightness) around a patient, a gas sensor for measuring odor, a gps (global Positioning system) for measuring positional information, and the like. The measured environmental information may be transmitted to the patient terminal 10 together with the biological information by a wired or wireless communication means, and temporarily stored in the recording unit 13 of the patient terminal 10.
The patient terminal 10 includes a mobile phone, a smartphone, a tablet terminal, and the like that can communicate with the patient described above. The patient terminal 10 may be a combination of a notebook computer having a communication function and a digital camera. The patient terminal 10 is connected to the measuring device 40 by wire or wireless, acquires measured biological information, and transmits the acquired biological information to the management server 20.
The patient terminal 10 includes a control unit 11, a communication unit 12 connected to the communication line 3 via the management server 20 and the doctor terminal 30 for communication, a recording unit 13 for recording acquired biological information, video information, and audio information, and a determination unit 14 for determining abnormality of the patient from measured biological information and the like. As described above, the patient terminal 10 includes the built-in camera 15 for imaging the patient 5, the display unit 16 for displaying the acquired biological information, environmental information, images, video images, and the like, the external camera 17 for imaging the patient, the microphone 18 for recording the voice of the patient, and the voice output unit 19 for playing the voice transmitted from the doctor terminal 30. In the image recording system 1, the communication unit 12 is provided as a first communication unit.
The patient terminal 10 acquires the biological information from the measuring instrument 40 via the communication unit 12, and transmits the acquired biological information to the management server 20. As will be described in detail later, the patient terminal 10 transmits the recorded video information and audio information to the management server 20 via the communication unit 12. At the time of transmission, the communication unit 12 of the patient terminal 10 adds information (hereinafter, a time stamp) for associating the biological information with the video information and the audio information on the time axis, and transmits the information to the management server 20.
The patient terminal 10 specifically includes a volatile memory (not shown) such as a cpu (central Processing unit), a ram (random Access memory), a non-volatile memory (recording unit 13) such as a hard disk or a flash memory, and a network interface (communication unit 12) connected to a communication network. The CPU corresponds to the control unit 11, and the control unit 11 controls the communication unit 12, the recording unit 13, the determination unit 14, the built-in camera 15, the display unit 16, the external camera 17, the microphone 18, and the voice output unit 19. The determination unit 14 may be realized by an application program executed by the control unit 11.
The management server 20 is a computer that stores and manages biological information, video information, audio information, and time stamps received from a plurality of patient terminals 10 every day. The management server 20 is connected to the doctor terminal 30 via the communication line 3, and transmits the biological information, the video information, the audio information, and the time stamp of the patient 5 to the doctor terminal 30 in response to a request from the doctor terminal 30.
The management server 20 includes a control unit 21 and a communication unit 22 for receiving and transmitting data with the patient terminal 10 and the doctor terminal 30. The system further includes a storage unit 23 for storing the biological information, the video information, the audio information, and the time stamp received from the patient terminal 10, a determination unit 24 for determining an abnormality of the biological information of the patient, and an input unit 25.
The input unit 25 is a keypad, a keyboard, a touch panel, or a mouse, and is provided for an administrator to extract data from the storage unit 23 or edit the data.
The management server 20 specifically includes a volatile memory (not shown) such as a CPU or a RAM, and a non-volatile memory (recording unit 23) such as a hard disk or a flash memory, and includes a network interface (communication unit 22) for connecting to the communication line 3. The control unit 21 controls the communication unit 22, the storage unit 23, and the determination unit 24.
In addition, the communication section 22 is provided as a second communication section in the image recording system 1.
The storage unit 23 stores the biometric information, the video information, the audio information, and the time stamp received from the patient terminal 10 as described above. In addition to the above information, patient data including the ID of the patient, a face photograph, and the like is stored in advance, and various kinds of information are managed by a table. The data such as the biological information stored in the management server 20 is managed by the administrator, and is corrected by the administrator when, for example, the patient ID is changed.
The doctor terminal 30 is a terminal that can perform communication for use by medical staff such as doctors and nurses as described above, and is implemented by a notebook computer or a desktop computer that has a communication function and can record and output video and audio. The medical terminal 30 may be a mobile phone, a smartphone, a tablet terminal, or the like.
The doctor terminal 30 is usually provided in plural number, and is connected to the communication line 3. The connection means to the communication line 3 may be wired or wireless.
The medical terminal 30 is composed of a control unit 31, a communication unit 32, a camera 35, a display unit 36, and a voice output unit 37. The communication unit 32 communicates with the patient terminal 10 and the management server 20. The display unit 36 is a monitor for the doctor to confirm the information stored in the management server 20 and the state of the patient. The voice output unit 37 is a speaker that outputs the voice received from the management server 20. In the image recording system 1, the communication unit 32 is provided as a third communication unit.
The medical terminal 30 specifically includes a volatile memory (not shown) such as a CPU or a RAM, and a non-volatile memory (not shown) such as a hard disk or a flash memory, and has a network interface (communication unit 32) for connecting to the communication line 3. The control unit 31 is a CPU, and controls the communication unit 32, the camera 35, the display unit 36, and the voice output unit 37.
The image recording process (image recording method) using the image recording system 1 will be described with reference to fig. 3. The image recording system 1 determines abnormality of biological information of the patient 5, and records image information and voice information based on the determination result.
The patient terminal 10 acquires biological information (measurement data and vital data) from the measurement device 40, records image information on the recording unit 13 of the patient terminal 10 from the internal camera 15 and the external camera 17, and records voice information on the recording unit 13 of the patient terminal 10 from the microphone 18 as voice recording means (S101: pre-abnormality occurrence information recording step). In the image recording system 1 of the present embodiment, the biometric information is continuously measured by the measuring device 40. In addition, the video information and the voice information are also continuously recorded simultaneously with the biological information. The patient terminal 10 may transmit only the acquired biological information to the management server 20.
The patient terminal 10 continuously analyzes the biological information by the determination unit 14, and determines whether or not there is an abnormality in the biological information (S102: abnormality determination step). The presence or absence of abnormality in the biological information is determined by comparing a predetermined threshold value with a value of the measured biological information.
As for the determination method as to whether or not there is an abnormality, in addition to the determination method using the threshold value, a method of determining an abnormality using a waveform feature such as an electrocardiogram waveform may be used. In addition, when determining whether or not there is an abnormality in the biological information, the determination may be performed using environmental information such as temperature and humidity around the patient.
When the patient terminal 10 transmits the biological information to the management server 20, the determination unit 24 of the management server 20 may determine an abnormality in the biological information. By performing the abnormality determination by the management server 20, it is possible to perform a more complicated determination method, for example, the abnormality determination by the waveform characteristics of the electrocardiogram waveform, and the abnormality determination by the learning of AI (Artificial Intelligence).
When the judgment unit 14 judges that there is No abnormality in the biological information (No in S102), the image information and the voice information recorded from the judged time to a time set in advance are erased from the recording unit 13 (S103: information erasing step). Video information and audio information before occurrence of an abnormality are prerecorded using a so-called ring buffer. By using the ring buffer, unnecessary video information and audio information are eliminated from the recording unit 13, and the capacity of the recording unit 13 is not occupied. Therefore, it is possible to prevent the video information and the audio information from being recorded due to the capacity shortage. The time set as the pre-recorded ring buffer may be set according to the recordable capacity of the recording unit 13 of the patient terminal 10. The time preset for erasing is, for example, a recording time S before occurrence of an abnormality, which will be described later. Further, the pre-recording is performed in time-division multiple channels by the number of the internal cameras 15 and the external cameras 17 connected to the patient terminal 10. After the image information and the voice information are erased by the recording unit 13 of the patient terminal 10, the process returns to step S101 to continue recording the biological information and the image information and the voice information. The judgment unit 14 judges whether or not there is an abnormality in the acquired biological information.
In the abnormality determination step S102, when the determination unit 14 determines that there is an abnormality in the biological information (Yes in S102), the description will be given with reference to fig. 4. Fig. 4 is a graph showing whether video information and audio information are being recorded on the horizontal axis with time t, and the time during recording is a solid line and the time during non-recording is a broken line.
When the judgment unit 14 judges that there is an abnormality in the biological information, the recording unit 13 records the biological information and the video information and audio information after the abnormality occurrence together after a predetermined recording time (the recording time T after the abnormality occurrence, the first recording time) has elapsed from the time point of the abnormality occurrence (the abnormality occurrence time P) (S104: the information recording step after the abnormality occurrence). The recording unit 13 stores the video information and the audio information in the recording unit 13 without erasing the video information and the audio information recorded from the abnormality occurrence time point P to the recording time S before the abnormality occurrence (second recording time).
Then, after the recording time T after the occurrence of the abnormality has elapsed from the abnormality occurrence time point P, the video information and audio information recorded during this time are combined (joined) with the video information and audio information recorded from the abnormality occurrence time point P to the recording time S before the occurrence of the abnormality. By the merging, the recording of the video information and the audio information in the period K before and after the occurrence of the abnormality is completed.
Then, the communication unit 12 of the patient terminal 10 transmits the video information and the audio information recorded in the time period K before and after the occurrence of the abnormality to the management server 20. The communication unit 12 of the patient terminal 10 simultaneously transmits the time stamp of the biological information in synchronization with the video information and the audio information during the time period K (S105: information transmission step).
The management server 20 receives the biological information, the video information, the audio information, and the time stamp from the patient terminal 10, and then stores the information in the storage unit 23 of the management server 20 (S106: information storage step). The biological information and the like stored in the management server 20 can be transmitted to the doctor terminal 30 in a state where the stored biological information is synchronized with the video information and the audio information using the time stamp in response to the broadcast request from the doctor terminal 30.
The lengths of the video information and the audio information recorded before and after the occurrence of an abnormality (the recording time S before the occurrence of an abnormality and the recording time T after the occurrence of an abnormality) can be arbitrarily set, and the respective lengths may be set to the same length or different lengths. When the video information and audio information before the abnormality occurrence time point P are not required, the recording time S before the abnormality occurrence is set to 0 minutes, and the communication unit 12 transmits the video information and audio information recorded after the abnormality occurrence time point P to the management server 20. Further, depending on the state of the patient and the type of biological information to be measured, it may not be necessary to record the voice information, and whether or not to record the voice information may be selected according to the setting.
The recording time S before occurrence of an abnormality and the recording time T after occurrence of an abnormality may be set to respective lengths according to the type of abnormality (difference in measurement items, difference in criteria at the time of abnormality determination, and the like), or the setting may be set for each patient.
The recorded image information may be captured by using an internal camera 15 built in the patient terminal 10, or may be captured by using an external camera 17 connected to the patient terminal 10 by wireless or wired connection. For example, when the patient wants to observe the complexion of the patient, the imaging is performed by the built-in camera 15 of the patient terminal 10 arranged near the face of the patient, and when the panoramic view including the whole body of the patient wants to be observed, the imaging is performed by the external camera 17, so that the patient can be used separately. In addition, if the patient terminal 10 includes a plurality of internal cameras 15 having different angles of view or a plurality of external cameras 17, it can be used according to the purpose.
In addition, the resolution of the image and the sampling frequency of the sound may be set according to the type of abnormality so as not to unnecessarily increase the amount of data stored in a memory, a hard disk, or the like or the amount of data communication. When it is desired to record the state of the whole body of the patient according to the type of abnormality, the image information captured by the external camera 17 is recorded at a relatively low resolution. In addition, when it is desired to record the facial expression of the patient, the image information can be recorded with a relatively high resolution using the built-in camera 15.
Fig. 5 shows a specific example of the contents set according to the type of abnormality. Record R1 indicates that the abnormality category is "arrhythmia". Since it is necessary to photograph the whole body of the patient to observe arrhythmia, it is assumed that the external camera 17 provided for photographing the whole body is used as the image recording unit. Since a relatively long observation time is required, the recording time S before the occurrence of an abnormality is "10 minutes", and the recording time T after the occurrence of an abnormality is "5 minutes". Since recording is performed for a long time, the resolution level is set to SD picture quality (720px × 480px), and the sampling frequency of sound is set to 24kHz, whereby the amount of stored data can be reduced.
Record R2 shows a case where the abnormality type is measurement "SpO 2 (arterial oxygen saturation)", and the use of the built-in camera 15 as the image recording means is set for recording the patient's gas color. Since the recording time is relatively short, the recording time S before the occurrence of an abnormality is "5 minutes", and the recording time T after the occurrence of an abnormality is "1 minute". The resolution level is set to HD quality (1280px × 720px), and the sampling frequency of the audio is set to 48kHz, so that the recording is performed with relatively high quality and high sound quality.
The settings of the records R1 and R2 are stored in the patient terminal 10. Further, the data may be stored in the management server 20 as the patient data 23 a. Can be set according to the needs of the patient or the doctor, and accordingly, the patient can be observed more carefully.
When the patient 5 is measured by using the plurality of types of measuring devices 40, abnormality determination of different pieces of biological information may occur during recording of video information and audio information. For example, as shown in fig. 6, in the process of recording video information and audio information at the time point when abnormality of biological information is first determined (abnormality occurrence time point P1), when the same video recording means, for example, the built-in camera 15 is set to be used, abnormality of another biological information may be determined at a later time point (abnormality occurrence time point P2). In this case, the end of the video recording time coincides with the recording end time of the abnormality determined later. The video information and audio information are transmitted to the management server 20 after the recording end time of the abnormality determined later, and in this case, the video information and audio information recorded for two abnormal periods K3 are transmitted together with the time stamp. In addition, data at the time of occurrence of the abnormality is also transmitted.
When the doctor terminal 30 plays the video information, the management server 20 transmits the recording start time and the recording end time set for each abnormality at the time of playing the video information and the audio information to the doctor terminal 30. That is, when the medical staff selects the abnormality occurrence time point P1, the video information/audio information of the length of the time period K1 including the recording time before the occurrence of the abnormality S1 and the recording time after the occurrence of the abnormality T1 is output, and when the abnormality occurrence time point P2 is selected, the video information/audio information of the length of the time period K2 including the recording time before the occurrence of the abnormality S2 and the recording time after the occurrence of the abnormality T2 is output. Compared to the case where video information and audio information are stored separately, the number of overlapping video information and audio information stored in the management server 20 can be reduced.
As described above, the image recording system 1 of the present embodiment is a part of a remote medical system in which a doctor at a remote location can diagnose a patient. Therefore, when the patient terminal 10 is recording the video information and the audio information, it is sometimes necessary to start the video call with the doctor terminal 30. Therefore, in the video recording system 1 of the present embodiment, in order not to put any of the processes on the shelf, as shown in fig. 7, the video information and audio information 42 recorded by the built-in camera 15 or the microphone 18 is temporarily stored in the data buffer 43. The recording unit 13 records the video information and the audio information 42 stored in the data buffer 43 on a hard disk or a memory (recording device 44). In order to perform a video call, the communication unit 12 transmits the video information and audio information 42 stored in the data buffer 43 to the doctor terminal 30. By using the data buffer 43, the recording unit 13 and the communication unit 12 operate independently, and two processes can be executed simultaneously. Therefore, it is possible to avoid the process of either one from becoming a suspended state.
Next, a method of synchronously presenting the biological information, the video information, and the audio information using the medical terminal 30 will be described with reference to fig. 8 and 9. As described above, in the video recording system 1, the management server 20 stores the biological information recorded in the past by the patient terminal 10, and the video information and the audio information recorded in a state synchronized or capable of being synchronized with the biological information on the time axis. The biological information, the video information, and the audio information can be referred to from the doctor terminal 30 through the communication line 3 at any time. The medical staff can make a more appropriate judgment when the patient is abnormal by referring to the video information and the voice information synchronized with the biological information.
In order to achieve this, the video recording system 1 of the present embodiment stores a management time stamp, which is included in the biological information and the video/audio information or is newly added, in the management server 20. The management server 20 searches and checks the management time stamp in response to a request from the doctor terminal 30 so that the video/audio information can be displayed in synchronization with the biological information, and then transmits the video/audio information to the doctor terminal 30.
The start of the video information/audio information display may be performed by the medical staff designating an arbitrary time, or by selecting an alarm history in which the abnormality determination result (vital sign) of the biological information displayed on the doctor terminal 30 is displayed in chronological order. When the alarm history is used as the video/audio information display start point, as described above, the video information and the audio information are recorded in a predetermined time period before and after the determined time point, and therefore, the time can be shifted, that is, the display start point can be shifted to an arbitrary time.
The processing for displaying the video information and the audio information on the doctor terminal 30 will be described with reference to fig. 8. First, as a broadcast request, the medical staff inputs the broadcast time of the video information and audio information of the patient 5 desired to be broadcast using the medical terminal 30, or specifies the abnormality determination result (vital sign) desired to be displayed with reference to the alarm history displayed on the screen. The management server 20 receives a playback request from the doctor terminal 30 (S201).
The management server 20 (more specifically, the control unit 21) searches and verifies the management time stamp included in the biological information and the video/audio information or added in association with the biological information based on the broadcast request received from the medical terminal 30 (S202). When a specific record in the abnormality determination result is specified by the doctor, the time stamp is retrieved and verified based on the time of the abnormality determination result record.
The management server 20 transmits the biological information as the search result, the video information and audio information synchronized with the biological information, and the time stamp to the doctor terminal 30 (S203). The doctor terminal 30 synchronizes the received biometric information and the video information with the time stamp and displays them on the display unit 36, and synchronizes the biometric information with the voice information and outputs them to the voice output unit 37 with the time stamp (S204).
Fig. 9 shows an output screen displayed on the doctor terminal 30. The time during which the program is being played (play time) is displayed on the screen upper part 36a of the display unit 36. The image information captured is reproduced at the center 36b of the screen, and the measured biological information (electrocardiogram, SpO2) is displayed at the lower 36c of the screen. Further, the voice is outputted to the voice output unit 37 of the doctor terminal 30. The biological information, the video information, and the audio information are displayed or output in synchronization on a time axis based on the time stamp. The medical staff using the doctor terminal 30 can adjust the time of playback by operating the playback button 36d, pause button 36e, reverse button 36f, and fast forward button 36g provided on the right side of the screen.
The medical staff can confirm the current situation of the patient 5 through a real-time screen by communicating with the patient 5 using another video communication system, and can perform more appropriate medical judgment by referring to the image of the patient 5 taken when the abnormality of the biological information is found.
The management server 20 stores only video information and audio information at recording times set before and after the time point at which abnormality of biological information is determined, and since information unnecessary for medical judgment is not recorded, the storage capacity of the management server 20 is not occupied. Further, since unnecessary information is not transmitted from the management server 20, the medical staff can easily find the image information and the voice information necessary for medical judgment, and can observe the state of the imaged patient 5 in a short time. The screen layout of the display unit 36 is an example, and may be different from the layout shown in fig. 9.
The video recording system and the video recording method according to the present embodiment are explained above with reference to the drawings. In the above embodiment, the doctor terminal 30 has been described as a terminal used by a doctor or a nurse, but the doctor terminal 30 may be a terminal used by a nurse or a terminal used by a person who provides health management, as well as a terminal used by a doctor or a nurse.
Description of the symbols
1 image recording system
3 communication line
5 patients
10 terminal for patient
11 control part
12 communication part (first communication part)
13 recording part
14 judging unit
15 built-in camera
16 display part
17 external camera
18 microphone
19 voice output part
20 management server
21 control part
22 communication part (second communication part)
23 storage section
24 judging unit
25 input unit
30 terminal for doctor (terminal for medical staff)
31 control part
32 communication part (third communication part)
35 pick-up head
36 display part
36a upper part of the picture
36b center part of the screen
36c lower part of the picture
36d Play button
36e pause button
36f reverse button
36g fast forward button
37 voice output unit
40 measuring device
42 video information/voice information
43 data buffer
44 recording device
P, P1 and P2 abnormality occurrence time point
T, T1, recording time (first recording time) after abnormal T2
Recording time (second recording time) before occurrence of S1, S2 and S3 abnormality
K. Periods of K1, K2, K3
R1, R2 record
Claims (8)
1. An image recording system including a patient terminal for transmitting biological information acquired from a measuring device for measuring biological information of a patient, and a management server; the management server is connected to the patient terminal via a communication line, receives the biological information from the patient terminal via the communication line, and stores the biological information, and is characterized in that:
the patient terminal or the management server has a determination unit for determining abnormality of the biological information;
the patient terminal comprises an image recording unit, a voice recording unit, a recording part and a first communication part;
the image recording unit records the state of the patient as image information;
the voice recording unit records the state of the patient as voice information;
the recording part records the image information and the voice information from the abnormal occurrence time point of the abnormality until a first recording time elapses by the image recording unit and the voice recording unit when the judgment part judges that the biological information is abnormal;
the first communication unit transmits the image information and the voice information, and a timestamp for synchronizing the image information and the voice information with the biological information to the management server;
the management server includes a storage unit that stores the image information, the voice information, and the time stamp received from the patient terminal via the communication line;
the recording unit of the patient terminal continuously records the image information and the voice information by the image recording unit and the voice recording unit, and when the judgment unit judges that the biological information is abnormal, the image information and the voice information recorded from the abnormal occurrence time point to a second recording time are not eliminated and are stored;
the first communication unit transmits the video information and the audio information stored from the time before the second recording time to the time point of occurrence of the abnormality together with the time stamp to the management server;
the storage unit of the management server stores the video information, the audio information, and the time stamp recorded from the second recording time to the abnormality occurrence time point received from the patient terminal via the communication line.
2. The image recording system according to claim 1, wherein:
the first recording time and the second recording time are set according to the type of the biological information abnormality.
3. The image recording system according to claim 1 or 2, wherein:
the image recording unit of the patient terminal is composed of a plurality of cameras with different viewing angles.
4. The image recording system according to claim 1 or 2, wherein:
further comprising a medical staff terminal connected by communicating with the management server and the patient terminal;
the management server is provided with a control part and a second communication part;
a control unit that searches the biological information, the image information, the voice information, and the time stamp stored in the storage unit based on a broadcast request received from the medical staff terminal through the communication;
the second communication unit transmits the biological information, the image information, the voice information, and the time stamp, which are the results of the search by the control unit, to the medical staff terminal;
the medical staff terminal is provided with a third communication part, a display part and a voice output part;
the third communication unit receives the biological information, the image information, the voice information, and the time stamp from the management server;
a display unit that synchronizes and displays the biological information and the video information received from the management server with the time stamp;
the voice output unit synchronizes and outputs the biometric information and the time stamp displayed on the display unit with the voice information received from the management server.
5. The image recording system according to claim 4, wherein:
the playing request is the playing time expected to be played by the medical staff.
6. The image recording system according to claim 4, wherein:
the playing request is a specific record selected by medical staff from abnormal histories of biological information occurring in the past;
the control unit of the management server searches the biometric information, the video information, the audio information, and the time stamp stored in the storage unit based on the time at which the abnormality of the selected specific record occurred.
7. An image recording method using a patient terminal and a management server, the patient terminal having an image recording unit and a voice recording unit, the image recording unit transmitting biological information acquired from a measuring device that measures the biological information of a patient and recording a state of the patient as image information; the voice recording unit records the state of the patient as voice information, and the management server is connected to the patient terminal via a communication line, receives the biological information from the patient terminal via the communication line, and stores the biological information, wherein: the patient terminal or the management server comprises an abnormality determination step, an information recording step before abnormality occurrence, an information recording step after abnormality occurrence, an information transmission step and an information storage step;
the abnormality determination step determines abnormality of the biological information;
a pre-abnormality information recording step of continuously recording the image information and the voice information in the patient terminal, and storing the image information and the voice information recorded from an abnormality occurrence time point to a second recording time point when the patient terminal or the management server determines that the biological information is abnormal, without removing the image information and the voice information;
in the post-abnormality information recording step, when the patient terminal or the management server determines that there is an abnormality in the biological information, the image information and the voice information recorded from the time of occurrence of the abnormality until a first recording time elapses are recorded by the image recording unit and the voice recording unit of the patient terminal;
transmitting the video information and the audio information recorded by the patient terminal and a time stamp for synchronizing the biological information with the video information and the audio information to the management server;
the information storing step stores the image information, the voice information, and the time stamp received by the management server from the patient terminal via the communication line.
8. A recording medium recording an image recording program that is executed as a program by a patient terminal having an image recording unit that transmits biological information acquired from a measuring instrument that measures biological information of a patient and records a state of the patient as image information, and a voice recording unit, and a management server; the voice recording unit records the state of the patient as voice information, and the management server is connected to the patient terminal via a communication line, receives the biological information from the patient terminal via the communication line, and stores the biological information, wherein:
the image recording program comprises an abnormality judging step, an information recording step before abnormality occurrence, an information recording step after abnormality occurrence, an information transmitting step and an information storing step;
determining abnormality of the biological information by the patient terminal or the management server in the abnormality determination step;
a pre-abnormality information recording step of continuously recording the image information and the voice information in the patient terminal, and storing the image information and the voice information recorded from an abnormality occurrence time point to a second recording time point when the patient terminal or the management server determines that the biological information is abnormal, without removing the image information and the voice information;
in the post-abnormality information recording step, when the patient terminal or the management server determines that there is an abnormality in the biological information, the image information and the voice information recorded from the time of occurrence of the abnormality until a first recording time elapses are recorded by the image recording unit and the voice recording unit of the patient terminal;
transmitting the video information and the audio information recorded by the patient terminal and a time stamp for synchronizing the biological information with the video information and the audio information to the management server;
the information storing step stores the image information, the voice information, and the time stamp received by the management server from the patient terminal via the communication line.
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