JP6848607B2 - Infection direction display program, infection direction display method and infection direction display device - Google Patents

Description

The present invention relates to an infection direction display program, an infection direction display method, and an infection direction display device.

Traditionally, infectious diseases such as influenza and norovirus have spread in hospitals and the like. The routes of nosocomial infections in hospitals and the like are mainly contact infections, airborne infections, and droplet infections, and if countermeasures are delayed, the infection spreads throughout the hospital. In recent years, there has been known a technique for suppressing the spread of infection by identifying and visualizing which patient was infected in which room.

Special Table 2012-511193 JP-A-2009-140148 International Publication No. 2016/181490

However, with the above technique, although it is possible to know that the patient has been infected, it is not possible to visually confirm how the infection has spread, and it is difficult to grasp the spread of the infection.

In one aspect, it is an object of the present invention to provide an infection direction display program, an infection direction display method, and an infection direction display device capable of visualizing the spread of infection.

In the first proposal, the infection direction display program identifies the strength of the relationship between rooms and the direction of infection between rooms based on the person's infection information and the person's movement information between rooms. Let the computer perform the process. The infection direction display program indicates the position of each room by associating the information indicating the strength of the relationship regarding the infection between the identified rooms with the information indicating the direction of the infection between the identified rooms. Have the computer perform the process of displaying on the map.

According to one embodiment, the spread of infection can be visualized.

FIG. 1 is a functional block diagram showing a functional configuration of the information processing apparatus according to the first embodiment. FIG. 2 is a diagram showing an example of floor information stored in the floor information DB. FIG. 3 is a diagram showing an example of room information stored in the room information DB. FIG. 4 is a diagram showing an example of nosocomial infection information stored in the nosocomial infection information DB. FIG. 5 is a diagram showing an example of movement information stored in the movement information DB. FIG. 6 is a diagram showing an example of infection risk information stored in the room infection risk DB. FIG. 7 is a diagram showing an example of infection risk information stored in the room-to-room infection risk DB. FIG. 8 is a diagram showing an example of a three-dimensional map. FIG. 9 is a flowchart showing the flow of processing. FIG. 10 is a diagram showing a hardware configuration example.

Hereinafter, examples of the infection direction display program, the infection direction display method, and the infection direction display device disclosed in the present application will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, each embodiment can be appropriately combined within a consistent range.

The information processing device 10 according to the first embodiment is an example of a computer that visualizes a nosocomial infection route such as contact infection, airborne infection, and droplet infection in a hospital, and may be installed in the hospital or installed on a cloud. You may be. In addition, the information processing device 10 can visualize the spread of infection by expressing the connections between each room in the hospital as a three-dimensional map and predicting which room the infection will spread in the future.

[Functional configuration]
FIG. 1 is a functional block diagram showing a functional configuration of the information processing apparatus 10 according to the first embodiment. As shown in FIG. 1, the information processing device 10 includes a communication unit 11, a display unit 12, a storage unit 13, and a control unit 20.

The communication unit 11 is a processing unit that controls communication of other devices, such as a communication interface. For example, the communication unit 11 receives an instruction for mapping hospital-acquired infection information from the administrator terminal and transmits the generated three-dimensional map to the designated terminal.

The display unit 12 is a processing unit that displays various types of information, such as a display and a touch panel. For example, the display unit 12 displays the three-dimensional map generated by the control unit 20.

The storage unit 13 is an example of a storage device that stores programs, data, and the like, such as a memory and a hard disk. The storage unit 13 stores the floor information DB 14, the room information DB 15, the hospital infection information DB 16, the movement information DB 17, the room infection risk DB 18, and the room-to-room infection risk DB 19.

The floor information DB 14 is a database that stores information about hospital floors. FIG. 2 is a diagram showing an example of floor information stored in the floor information DB 14. As shown in FIG. 2, the floor information DB 14 stores “floor, coordinates”. The "floor" stored here is information that identifies the floor in the hospital. The "coordinates" are information for specifying the area of the floor, for example, the coordinates of the four corners of the floor. In the example of FIG. 2, the first floor is (0,0,0)-(0,100,0,0)-(0,100,100,0)-(0,0,100,0). Indicates that the area is surrounded. The information stored here is set by an administrator or the like.

The room information DB 15 is a database that stores information about each room in the hospital. FIG. 3 is a diagram showing an example of room information stored in the room information DB 15. As shown in FIG. 3, the room information DB 15 stores "room ID, center coordinates". The "room ID" stored here is an identifier that identifies the room, and the "center coordinates" are the coordinates of the center of the room. In the case of FIG. 3, it is shown that the center coordinates of the room 1-1 are (20, 20, 0). The information stored here is set by an administrator or the like.

The nosocomial infection information DB 16 is a database that stores infection information in the hospital. FIG. 4 is a diagram showing an example of nosocomial infection information stored in the nosocomial infection information DB 16. As shown in FIG. 4, the nosocomial infection information DB 16 stores "room ID, doctor in charge, nurse in charge, number of patients, number of infected persons, number of vaccinated persons".

The "room ID" stored here is an identifier that identifies the room. The "doctor in charge" is information that identifies the doctor in charge of the room, and the "nurse in charge" is information that identifies the nurse in charge of the room. The "number of patients" is the number of patients admitted to the room, the "number of infected persons" is the number of patients who have been confirmed to be infected with an infectious disease, and the "number of vaccinated persons" is , The number of patients who have been vaccinated against infectious diseases. It should be noted that a patient ID or the like that identifies a patient can be associated with each room.

In the example of FIG. 4, room 1-1 is a room in charge of doctor A and nurse E, 5 people are hospitalized, 3 people are vaccinated, and 2 people are infected. Show that. Further, from FIG. 4, it can be seen that the doctor A is in charge of both room 1-1 and room 2-1. In room 1-1 and room 1-3, the doctors are different but the nurses in charge are the same. It turns out that there is. The information stored here is set and updated by an administrator or the like.

The movement information DB 17 is a database that stores movement information between patient rooms. FIG. 5 is a diagram showing an example of movement information stored in the movement information DB 17. As shown in FIG. 5, the movement information DB 17 stores “movement source room ID, movement destination room ID, patient”. The "moving source room ID" stored here is an identifier that identifies the patient's moving source room, and the "destination room ID" is an identifier that identifies the patient's moving destination room, and is the "patient". Is information that identifies the infected person who has moved.

The first line of FIG. 5 shows that patient H has moved from room 1-1 to room 1-2. In addition to the movement of the hospital room, the movement includes a temporary movement due to an examination or the like. In addition, the patient targeted by the mobile information can be a general inpatient, or an infected person whose infection has been confirmed among the inpatients. In addition, not only patients but also changes and movements of doctors and nurses in charge can be counted as management targets. Further, the movement information DB 17 can further associate the movement date and time.

The room infection risk DB 18 is a database that stores information on the infection risk of each room. FIG. 6 is a diagram showing an example of infection risk information stored in the room infection risk DB 18. As shown in FIG. 6, the room infection risk DB 18 stores the “room ID, risk”. The "room ID" stored here is an identifier that identifies the room. “Risk” indicates the risk of infection, and is set in, for example, five stages. In the example of FIG. 6, it can be seen that the risk of room 1-1 is 5, which is the highest risk of infection.

The room-to-room infection risk DB 19 is a database that stores relationships related to room-to-room infection. FIG. 7 is a diagram showing an example of infection risk information stored in the room-to-room infection risk DB 19. As shown in FIG. 7, the room-to-room infection risk DB 19 stores “room ID1, room ID2, relationship”. The "room ID1" and "room ID2" stored here are identifiers that identify the room. The "relationship" is information indicating the risk of infection between rooms, and is set in, for example, five stages. In the example of FIG. 7, it can be seen that the infection risk of room 1-1 and room 1-1 is 3.

The control unit 20 is a processing unit that controls the entire information processing device 10, and is, for example, a processor. The control unit 20 includes an infection information management unit 21, a room risk generation unit 22, an interroom risk generation unit 23, a map generation unit 24, and a map display unit 25. The infection information management unit 21, the room risk generation unit 22, the interroom risk generation unit 23, the map generation unit 24, and the map display unit 25 are examples of electronic circuits such as processors and examples of processes executed by the processors.

The infection information management unit 21 is a processing unit that receives information about an infected person. For example, the infection information management unit 21 receives the doctor in charge, the nurse in charge, the number of patients, the number of infected persons, the number of vaccinated persons, etc. in each room in the hospital via the administrator terminal or the like, and registers the infection information DB 16 in the hospital. Store. In addition, the infection information management unit 21 receives the movement information of the patient and stores it in the movement information DB 17.

The room risk generation unit 22 is a processing unit that generates an infection risk for each room. Specifically, the room risk generation unit 22 calculates the infection risk based on the number of infected persons in each room, and calculates the infection risk for each room based on the person's infection information and the person's movement information between rooms. , Room infection risk DB18 stores the infection risk.

For example, the room risk generation unit 22 calculates the ratio of the number of infected persons to the number of patients for each room with reference to the nosocomial infection information DB 16 of FIG. Then, the room risk generation unit 22 has an infection risk in the range of 100% to 70%, an infection risk in the range of 69% to 60%, and an infection risk in the range of 59% to 50%. , The infection risk can be set to 2 in the range of 49% to 30%, and the infection risk can be set to 1 in the range of 29% or less.

Further, the room risk generation unit 22 can increase or decrease the infection risk by using various information. For example, the room risk generation unit 22 reduces the infection risk by 1 when the ratio of the number of vaccinations to the number of patients is 50% or more, and increases the infection risk by 1 when the ratio is less than 50%. You can also do it.

As another example, the room risk generation unit 22 may refer to the movement information DB 17 to reduce the infection risk of the room where the patient has left by 1 and increase the infection risk of the room where the patient has entered by 1. it can.

The room-to-room risk generation unit 23 is a processing unit that calculates the strength of the relationship regarding infection between rooms. Specifically, the inter-room risk generation unit 23 calculates the strength of the relationship regarding the inter-room infection based on the human infection information and the inter-room movement information of the person, and the inter-room infection risk DB 19 Store in.

For example, the inter-room risk generation unit 23 first generates a combination of each room and sets an initial value of 0 for the relationship corresponding to each combination, as shown in FIG. 7. Next, the room-to-room risk generation unit 23 refers to the nosocomial infection information DB 16 and causes the doctor in charge to increase the relationship in the same room by one. Further, in the room-to-room risk generation unit 23, the nurse in charge increases the relationship in the same room by one.

Further, the inter-room risk generation unit 23 can increase or decrease the relationship according to the number of people to move by referring to the movement information DB 17. For example, the inter-room risk generation unit 23 increases the relationship between room 1-1 and room 1-2 by 2 when two patients move from room 1-1 to room 1-2.

The map generation unit 24 is a processing unit that generates a three-dimensional map of the hospital using infection information. For example, the map generation unit 24 plots each floor in a three-dimensional space with reference to the floor information DB 14, and further plots each room as a node on each of the plotted floors with reference to the room information DB 15. Then, the map generation unit 24 refers to the room infection risk DB 18 and changes the size of the node corresponding to each room according to the risk of each room. That is, the map generation unit 24 sets the size of each room so that the risks increase in the order of 1, 2, 3, 4, and 5.

Further, the map generation unit 24 connects each of the plotted nodes with a line (edge), and changes the thickness of the line based on the relationship stored in the room-to-room infection risk DB 19. For example, the map generation unit 24 sets the size of each line so that the lines become thicker in the order of infection values 1, 2, 3, 4, and 5. The map generation unit 24 draws only rooms having a risk of a threshold value (for example, 2) or more as nodes, or draws an edge only between rooms for a relationship in which the relationship between rooms is a threshold value (for example, 2) or more. You can also do it.

Further, the map generation unit 24 identifies the spread direction of the infection by using the movement information, the infection time, and the like, and illustrates the direction on the map. For example, the map generation unit 24 refers to the movement information DB17, and when the patient is moving from the room 1-1 to the room 1-2, the map generation unit 24 refers to the room 1-1 to the room 1-2 on the three-dimensional map. The arrow to is illustrated. In addition, the map generation unit 24 uses the latest date and time of the infected person in each room to indicate an arrow from the room with the oldest infected person to the room with the latest infected person, or the infected person in each room. By connecting the latest dates and times in chronological order, the direction of spread of infection can be specified and illustrated. As another example, the map generation unit 24 can also plot a line for each room connected by an edge from the one with the higher risk of infection to the one with the lower risk of infection.

The map display unit 25 is a processing unit that displays the three-dimensional map generated by the map generation unit 24 on a display or the like. In addition, the map display unit 25 executes rotation, enlargement, reduction, and the like of the generated map according to the operation of the user. Further, when the position or edge of the room on the three-dimensional map is selected, the map display unit 25 can display detailed information such as the room infection risk DB 18 and the room-to-room infection risk DB 19.

FIG. 8 is a diagram showing an example of a three-dimensional map. In FIG. 8, it is assumed that the illustration of rooms having an infection risk of 1 or 2 is suppressed, and only the rooms having an infection risk of 3 or more are shown. As shown in FIG. 8, the target hospital has five floors from the 1st floor to the 5th floor, and rooms with an infection risk of 3 or more are 5-1, 4-1 and 4-2, 4-3, 3-. There are 7 rooms, 2, 3-3, 2-3. In addition, the risk of infection in room 4-2 is the highest, the risk of infection in room 5-1 and room 3-3 is the second highest, and the risk of infection in rooms 4-1 and 4-3, 3-2 and 2-3 is the highest. The next largest is shown. In addition, regarding the infection time of the infected person, since room 5-1 is the oldest and room 2-3 is the newest, an arrow indicating the direction of infection is shown in the direction from room 5-1 to room 2-3. To. In addition, the larger the relationship between the rooms, the thicker the line is connected. With such a three-dimensional map, the position of the infected person and the direction of infection can be visually confirmed. The direction of infection is not limited to arrows, and various display methods can be adopted as long as the information can specify the direction, such as north, south, east, and west, and floor information.

[Processing flow]
FIG. 9 is a flowchart showing the flow of processing. As shown in FIG. 9, when the process is started (S101: Yes), the room risk generation unit 22 reads the nosocomial infection information of the nosocomial infection information DB 16 (S102) and calculates the infection risk for each room (S103). ). Subsequently, the inter-room risk generation unit 23 calculates the infection risk for each room (S104).

After that, the map generation unit 24 reads the coordinates of the floor area from the floor information DB 14 and displays them in the three-dimensional space (S105). Subsequently, the map generation unit 24 reads the center coordinates of each room from the room information DB 15 and displays them as nodes in the three-dimensional space (S106).

Then, the map generation unit 24 reads the risk (infection risk) of each room from the room infection risk DB 18 and reflects it in the size of the node (S107). Further, the map generation unit 24 reads the risk (relationship) between each room from the room-to-room infection risk DB 19, draws an edge between rooms when the threshold value is exceeded, and reflects the magnitude of the risk in the thickness of the edge. (S108).

[effect]
As described above, the information processing apparatus 10 generates a three-dimensional map in which the room is a node and the relationship between the rooms is an edge. The size of the node reflects the size of the risk of the room, and the thickness of the edge reflects the strength of the rooms. The position of the node reflects the physical positional relationship of the room. The information processing device 10 can also display layer objects so that the rooms on the same floor can be seen.

In addition, the information processing device 10 can visually display in which direction the infection is spreading by rotating the map at various angles and referring to the map. In addition, the information processing device 10 can visually display the spread of infection by detecting the direction in which the infection is most widespread and automatically rotating the viewpoint perpendicular to the direction.

By the way, although the examples of the present invention have been described so far, the present invention may be implemented in various different forms other than the above-mentioned examples. Therefore, different embodiments will be described below.

[Calculation of infection direction]
For example, the information processing device 10 identifies the direction in which the infection proceeds based on the direction of infection between rooms and the direction of infection between other rooms, and displays the specified direction in which the infection proceeds on a map. You can also. For example, the information processing apparatus 10 can specify the direction of infection based on the number of directions of the arrows in the entire hospital after showing the direction of infection (arrow) between rooms based on the time of infection. Further, the information processing device 10 is not limited to the number of directions of the arrows, and can specify the direction in which the infection proceeds in the direction in which the number of edges is large, with reference to the room of the oldest infected person.

For example, the information processing device 10 can specify the direction in which the arrow points most as the infection direction and display it on the map. Further, the information processing device 10 can specify a plurality of infection directions according to the number of arrows pointing, and can specify the number of arrows as the risk level of the infection direction. In addition, the information processing device 10 can specify the infection direction for each floor and display it on the map.

In addition, when there are infected persons in rooms A and B, the information processing device 10 can draw the edge direction from the oldest to the newest, and when there are a plurality of infected persons, the information processing device 10 is the most. It is also possible to identify the orientation of the edges by comparing the old infection periods or the average infection period. The information processing device 10 can also draw an edge in the direction from room A to room B when a person (doctor, nurse, patient, etc.) moves from room A to room B.

Further, when there are a plurality of movements, the information processing device 10 can add a score to each movement and finally draw the direction of the edge in the direction of the larger score. The movement can include the movement of doctors, nurses, patients, etc., and in the case of movement of infected patients, the score (risk, relationship) can be controlled to be large.

Further, the information processing apparatus 10 can specify a plane in a three-dimensional space by picking up three vectors. For example, the information processing apparatus 10 obtains a plane composed of three vectors for all combinations of the three edge vectors, and obtains the sum of the inner products of all the vectors other than the three vectors on the respective planes. Then, the information processing apparatus 10 can determine that the higher the total plane, the greater the spread of infection, and can present a plurality of viewpoint candidates to the user in the order of ranking the total value.

[system]
Information including processing procedures, control procedures, specific names, various data and parameters shown in written documents and drawings can be arbitrarily changed unless otherwise specified.

Further, each component of each of the illustrated devices is a functional concept, and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure. That is, all or a part thereof can be functionally or physically distributed / integrated in any unit according to various loads, usage conditions, and the like. Further, each processing function performed by each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

[Hardware configuration]
FIG. 10 is a diagram showing a hardware configuration example. As shown in FIG. 10, the information processing device 10 includes a communication interface 10a, a display device 10b, an HDD (Hard Disk Drive) 10c, a memory 10d, and a processor 10e.

The communication interface 10a is a network interface card or the like that controls communication of other devices. The display device 10b is a touch panel, a display, or the like. The HDD 10c is an example of a storage device that stores programs, data, and the like.

Examples of the memory 10d include RAM (Random Access Memory) such as SDRAM (Synchronous Dynamic Random Access Memory), ROM (Read Only Memory), flash memory, and the like. Examples of the processor 10e include a CPU (Central Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), a PLD (Programmable Logic Device), and the like.

Further, the information processing device 10 operates as an information processing device that executes a data management method by reading and executing a program. That is, the information processing device 10 executes a program that executes the same functions as the infection information management unit 21, the room risk generation unit 22, the interroom risk generation unit 23, the map generation unit 24, and the map display unit 25. As a result, the information processing device 10 can execute a process of executing the same functions as the infection information management unit 21, the room risk generation unit 22, the interroom risk generation unit 23, the map generation unit 24, and the map display unit 25. it can. The program referred to in the other embodiment is not limited to being executed by the information processing apparatus 10. For example, the present invention can be similarly applied when another computer or server executes a program, or when they execute a program in cooperation with each other.

This program can be distributed over networks such as the Internet. In addition, this program is recorded on a computer-readable recording medium such as a hard disk, flexible disk (FD), CD-ROM, MO (Magneto-Optical disk), or DVD (Digital Versatile Disc), and is recorded from the recording medium by the computer. It can be executed by being read.

10 Information processing device 11 Communication unit 12 Display unit 13 Storage unit 14 Floor information DB
15 Room information DB
16 Nosocomial infection information DB
17 Movement information DB
18 Room infection risk DB
19 Room-to-room infection risk DB
20 Control unit 21 Infection information management unit 22 Room risk generation unit 23 Room-to-room risk generation unit 24 Map generation unit 25 Map display unit

Claims (5)

Based on the person's infection information and the person's movement information between rooms, the strength of the relationship regarding the infection between rooms and the direction of infection between rooms are identified.
Information indicating the strength of the relationship regarding infection between the identified rooms and information indicating the direction of infection between the identified rooms are associated and displayed on a map showing the location of each room.
An infection direction display program characterized by causing a computer to perform processing. Based on the person's infection information and the person's movement information between rooms, the infection risk is calculated for each room.
Information indicating the magnitude of infection risk for each room is displayed in the portion corresponding to the position of each room on the map.
The infection direction display program according to claim 1. Based on the direction of infection between the rooms and the direction of infection between other rooms, the direction of infection is identified.
The direction in which the identified infection proceeds is displayed on the map.
The infection direction display program according to claim 1. Based on the person's infection information and the person's movement information between rooms, the strength of the relationship regarding the infection between rooms and the direction of infection between rooms are identified.
Information indicating the strength of the relationship regarding infection between the identified rooms and information indicating the direction of infection between the identified rooms are associated and displayed on a map showing the location of each room.
An infection direction display method characterized by a computer performing processing. Based on the person's infection information and the person's movement information between rooms, a specific part that identifies the strength of the relationship regarding infection between rooms and the direction of infection between rooms,
A display indicating the location of each room by associating the information indicating the strength of the relationship regarding the infection between the identified rooms with the information indicating the direction of the infection between the identified rooms. Control unit and
An infection direction display device characterized by having.

Images