Method and system for evaluating post-earthquake functions of hospital areas, considering the integration of building functions.

Abstract

This invention provides a method and system for evaluating the post-earthquake functionality of hospital areas, taking into account the integration of building functions. [Solution] An evaluation method that contributes to the design, renovation, and improvement of the seismic resistance of hospital areas, which establishes a discrete event simulation model for evaluating the post-earthquake function of hospital areas, intuitively shows the evaluation results using the waiting time when patients enter departments involved in the response process as the basis for evaluation, determines resource changes in typical departments using vulnerability analysis and fault tree models, realizes the decomposition of the evaluation of the post-earthquake function of hospital areas into determining post-earthquake damage to members in typical departments, and evaluates the post-earthquake function of hospital areas.

Description

Technical Field

[0005] , ,

[0001] The present invention relates to the technical field of buildings, and specifically, to a method and system for evaluating the post-earthquake function of a hospital area considering the combination of building functions.

Background Art

[0002] The hospital area plays an important role in the emergency treatment of the injured after an earthquake. Different medical buildings play different functions in the emergency treatment of the injured after an earthquake. If all hospital departments do not cooperate after an earthquake, they cannot quickly cope with the challenges brought by the earthquake disaster.

[0003] According to actual statistics, most of the injured in an earthquake need to be sent to the hospital for diagnosis and treatment. However, the functions of different medical buildings in the hospital area are interrupted by the earthquake, resulting in the injured being unable to receive effective emergency treatment. Moreover, a large amount of time is also required for different medical buildings in the hospital area to be repaired after the earthquake, which has a significant impact on the efficiency of treating the injured.

[0004] Currently, most studies mainly evaluate the post-earthquake function of the emergency department or a single medical building, and cannot evaluate the post-earthquake function of the combination of different medical buildings in the hospital area.

Summary of the Invention

Means for Solving the Problems

[0005] To solve the above problems, an embodiment of the present invention provides a method for evaluating the post-earthquake function of a hospital area considering the combination of building functions, the evaluation method involves obtaining the patient consultation process for different injury levels after an earthquake, the relationships between the medical functions of each medical building in the hospital area, establishing a discrete event simulation model for providing emergency medical treatment to patients in the hospital area after an earthquake based on the consultation process and the relationships, establishing an elastoplastic analysis model based on the building drawings, structural drawings and equipment drawings of each of the medical buildings, and calculating the probability of failure of the members when subjected to an earthquake, and creating a fault tree model based on the members included in different medical departments. This includes establishing the probability of failure of the member when it is subjected to an earthquake and calculating the probability of medical departments being shut down based on the fault tree model; calculating the waiting time when a patient enters a typical department in an undamaged state based on the discrete event simulation model; reducing the number of available medical resources in the corresponding departments based on the probability of each medical department being shut down; calculating the waiting time when a patient enters a typical department in an earthquake-damaged state based on the discrete event simulation model; and evaluating the post-earthquake functionality of the hospital area based on the changes in waiting times when patients enter typical departments in the undamaged state and the earthquake-damaged state.

[0006] The method for evaluating the post-earthquake function of a hospital area, considering the combination of building functions, according to an embodiment of the present invention, establishes a discrete event simulation model for evaluating the post-earthquake function of a hospital area, intuitively presents the evaluation results using the waiting time when patients enter departments involved in the response process as the basis for evaluation, determines resource changes in typical departments using vulnerability analysis and fault tree models, realizes the decomposition of the evaluation of the post-earthquake function of a hospital area into determining post-earthquake damage to members in typical departments, provides an important means for evaluating the post-earthquake function of a hospital area, and has significant implications for the design, renovation, and improvement of the seismic resistance of hospital areas.

[0007] As an option, obtaining the patient consultation process for patients with different injury levels after an earthquake, and the relationships between the medical functions of each medical building in the hospital area, includes obtaining the patient consultation process after an earthquake according to the hospital consultation status of patients with different injury levels, determining the route a patient takes when entering a department involved in the consultation process based on the departmental distribution in different medical buildings in the hospital area and the basic design principles of those buildings, and obtaining the relationships between the medical functions of each medical building in the hospital area. The buildings with medical functions in the hospital area include outpatient buildings, emergency buildings, medical technology buildings, and wards, the emergency building includes the functions of an emergency treatment room and EICU, the medical technology building includes the functions of an imaging center, operating rooms, ICU, and CCU, and the wards include the functions of inpatient wards.

[0008] In embodiments of the present invention, it is possible to determine whether a patient enters the consultation process based on their consultation status, and to determine the relationship between medical functions of different medical buildings in a hospital area based on the organization of departmental distributions in those buildings and the basic design principles of those buildings, thereby considering the functional relationships between buildings in the area when evaluating post-earthquake functions.

[0009] As options, the patient consultation process after the earthquake is as follows: for patients with red numbers, it includes triage → emergency room → imaging center → operating room → ICU → general ward → discharge; for patients with yellow numbers, it includes triage → emergency room / EICU → imaging center → operating room → ICU → general ward → discharge; for yellow number patients whose injuries are not serious upon examination, the consultation process is triage → emergency room / EICU → imaging center → general ward → discharge; and for patients with green numbers, it includes triage → general ward / discharge.

[0010] In the embodiments of the present invention, a corresponding consultation process is determined for each different type of patient.

[0011] As options, patients with red numbers are those whose vital functions are impaired, altered, or unstable; patients with yellow numbers are those whose vital functions are partially impaired but not directly life-threatening; and patients with green numbers are those who are not in an emergency situation, are not in danger of death, and whose injuries will not affect vital functions.

[0012] In embodiments of the present invention, patients are specifically divided into multiple types according to their physical condition, thereby determining the different conditions of the patients.

[0013] As an option, establishing a discrete event simulation model for providing emergency medical care to patients in a hospital area after an earthquake, based on the aforementioned consultation process and associations, includes determining the departments involved with each type of patient based on the consultation process of the different numbered patients, determining the consultation route for each type of patient in the hospital area based on the association of the medical functions of the departments involved and the medical buildings, and establishing a discrete event simulation model for providing emergency medical care to patients in the hospital area after an earthquake, based on the consultation route.

[0014] In embodiments of the present invention, the departments involved with each type of patient are determined according to the differences in the patient consultation process for patients with different patient numbers, and the patient's consultation route within the hospital area is determined based on the distribution of departments in different medical buildings within the hospital area. By combining the patient consultation process with the actual situation in the hospital area, a discrete event simulation model is determined for providing emergency treatment to patients in the hospital area after an earthquake, according to the actual situation in the hospital area.

[0015] As an option, reducing the number of available medical resources for a corresponding medical department based on the aforementioned failure probability of each medical department includes setting the failure probability of each component of a typical department after an earthquake as the input event of the fault tree model, and the failure probability of the post-earthquake function of the typical department as the output event of the fault tree model, and reducing the number of available medical resources corresponding to the typical department according to the post-earthquake function failure probability of the typical department and the distribution of the typical department in a medical building.

[0016] In embodiments of the present invention, changes in the available resources of the relevant departments after an earthquake are determined by the probability of the typical departments becoming unusable. By determining the probability of the typical departments becoming unusable and the distribution of typical departments in medical buildings, the number of resources corresponding to the typical departments is directly reduced. The available resources of each typical department in the hospital area differ between the undamaged and earthquake-damaged states. In the undamaged state, the available resources are all the resources of each typical department, while in the earthquake-damaged state, the available resources are the resources that have been reduced.

[0017] As an option, calculating the waiting time for patients to enter typical departments in an undamaged state based on the discrete event simulation model, and calculating the waiting time for patients to enter typical departments in an earthquake-damaged state based on the discrete event simulation model, includes using the number of patients who enter the hospital area for treatment each day and the number of resources in typical departments in the hospital area as input data for the discrete event simulation model, and the waiting time for patients to enter typical departments in an undamaged state as output data, and using the number of patients who enter the hospital area for treatment each day after an earthquake and the number of resources in typical departments in the hospital area after the decrease as input data for the discrete event simulation model, and the waiting time for patients to enter major departments in an earthquake-damaged state as output data.

[0018] In embodiments of the present invention, the waiting times of patients with different patient numbers in the same department within the same process are compared, thereby correlating the changes in waiting times with the post-earthquake functionality of the hospital area to complete the evaluation of the post-earthquake functionality of the hospital area.

[0019] As an option, the aforementioned waiting time is the waiting time when patients with different numbers enter a typical department involved in the consultation process, and the aforementioned typical departments include the emergency room, EICU, operating room, ICU ward, imaging center, and patient rooms.

[0020] In the embodiments of the present invention, the average daily waiting time when a patient enters a typical department involved in the medical consultation process is defined as the waiting time. Based on a discrete event simulation model, the waiting times when a patient enters a major department under undamaged and earthquake-damaged conditions are determined and compared, and the waiting time is used as an evaluation criterion for the post-earthquake function of the hospital area to evaluate the post-earthquake function of the hospital area.

[0021] As an alternative, establishing a fault tree model by components belonging to different medical departments involves determining which components belong to each typical department based on the departmental attributes of each component, establishing a fault tree model for the typical department by establishing a logical relationship between each component and the typical department, and ensuring that the components include structural components, non-structural components, and medical devices for each typical department.

[0022] In embodiments of the present invention, a specific process for establishing a fault tree model is provided, and based on this discrete event simulation model, waiting times can be determined as evaluation criteria for post-earthquake functionality in a hospital area.

[0023] Embodiments of the present invention provide an evaluation system for post-earthquake functions of a hospital area that takes into account the combination of building functions, the evaluation system includes an acquisition module for acquiring the patient consultation process for different injury levels after an earthquake and the relationships between the medical functions of each medical building in the hospital area; a model establishment module for establishing a discrete event simulation model for providing emergency medical treatment to patients in the hospital area after an earthquake based on the consultation process and the relationships; a failure probability determination module for establishing an elastoplastic analysis model based on the building drawings, structural drawings and equipment drawings of each of the medical buildings and for calculating the probability of failure of members when subjected to an earthquake; and a fault tree model for establishing members included in different medical departments, The system includes: a failure probability determination module for calculating the probability of failure of a member when subjected to an earthquake and the probability of medical departments being shut down based on the fault tree model; a determination module for calculating the waiting time when a patient enters a typical department in an undamaged state based on the discrete event simulation model, and for reducing the number of available medical resources in the corresponding departments based on the failure probability of each medical department, and for calculating the waiting time when a patient enters a typical department in an earthquake-damaged state based on the discrete event simulation model; and an evaluation module for evaluating the post-earthquake functionality of the hospital area based on the changes in waiting times when patients enter typical departments in the undamaged state and the earthquake-damaged state.

[0024] The post-earthquake function evaluation system for a hospital area that takes into account the combination of building functions according to an embodiment of the present invention can obtain the same technical effects as the post-earthquake function evaluation method for a hospital area that takes into account the combination of building functions described above. [Brief explanation of the drawing]

[0025] To more clearly describe embodiments of the present invention or the prior art, the drawings necessary for describing the embodiments or prior art are briefly described below. However, the drawings described below are simply embodiments of the present invention, and those skilled in the art can obtain further drawings based on the provided drawings without requiring any creative effort. [Figure 1] It is a flowchart of a method for evaluating the post-earthquake function of a hospital area considering the combination of building functions according to an embodiment of the present invention. [Figure 2] It is a diagram showing the patient consultation process after an earthquake according to an embodiment of the present invention. [Figure 3] It is a schematic diagram showing a discrete event simulation model for evaluating the post-earthquake function of a hospital area according to an embodiment of the present invention. [Figure 4] It is a schematic diagram showing a model of a hospital area according to an embodiment of the present invention. [Figure 5] It is a diagram showing an elastoplastic model of four different types of medical buildings decomposed from the hospital area shown in FIG. 4 according to an embodiment of the present invention. [Figure 6] It is a diagram showing a fault tree model of a typical department according to an embodiment of the present invention. [Figure 7a] It is a schematic comparison diagram of the average waiting time per day when a patient with a red number enters the emergency treatment room after reducing resources in the non-damaged and earthquake-damaged states according to an embodiment of the present invention. [Figure 7b] It is a schematic comparison diagram of the average waiting time per day when a patient with a yellow number enters the emergency treatment room and the EICU in the non-damaged and earthquake-damaged states according to an embodiment of the present invention. [Figure 7c] It is a schematic comparison diagram of the average waiting time per day when patients with red numbers and yellow numbers enter the operating room in the non-damaged and earthquake-damaged states according to an embodiment of the present invention. [Figure 8] It is a structural schematic diagram of an evaluation device for the post-earthquake function of a hospital area considering the combination of building functions according to an embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0026] To make the above objects, features, and advantages of the present invention clearer and easier to understand, specific embodiments of the present invention will be described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are for interpreting the present invention and not for limiting the present invention.

[0027] Currently, every time an earthquake occurs, the speed of providing emergency treatment to the injured is slowed due to the closure of relevant departments in medical buildings, resulting in relatively poor functional recovery capabilities. However, different medical buildings within a hospital area have different functions for providing emergency treatment to the injured after an earthquake, and all hospital departments must cooperate after an earthquake in order to quickly cope with the challenges posed by the disaster. Therefore, it is necessary to evaluate the post-earthquake functionality of conventional hospital areas to determine their seismic resistance level and provide data support and decision-making support for subsequent renovation, design, and planning of hospital areas. Conventional methods mainly evaluate the functionality of emergency departments that have important medical systems, and the methods mainly used include fault tree methods, system dynamics methods, and discrete event simulations, but there is relatively little research on methods for evaluating the post-earthquake functionality of hospital areas.

[0028] To address the above issues, the method for evaluating the post-earthquake function of a hospital area considering the combination of building functions according to an embodiment of the present invention involves acquiring the patient consultation process after an earthquake, establishing different medical building relationships within the hospital area, and establishing a discrete event simulation model to evaluate the post-earthquake function of the hospital area based on these relationships. Subsequently, the probability of each typical department being out of service is determined based on a fault tree model, and the post-earthquake damage to each departmental resource is acquired based on the out-of-service probability. This determines the average daily waiting time when a patient enters a department involved in the response process in both the undamaged and earthquake-damaged states, and the change in the average daily waiting time is used as an important parameter for evaluating the post-earthquake function of the hospital area. This evaluation method has significant implications for seismic reinforcement of hospital areas. The embodiments of the present invention will be described in detail below.

[0029] An embodiment of the present invention provides a method for evaluating the post-earthquake function of a hospital area considering the combination of building functions, and refers to the flowchart of the method for evaluating the post-earthquake function of a hospital area considering the combination of building functions shown in Figure 1, which mainly includes the following steps.

[0030] S102: Obtain information on the patient consultation process for patients with different levels of injury after an earthquake, and the relationships between medical functions of each medical building within the hospital area.

[0031] The patient consultation process after an earthquake and the relationships between buildings in the hospital area are important grounds for establishing an evaluation of the post-earthquake functionality of the hospital area. In one embodiment, the patient consultation process after an earthquake may be obtained according to the hospital consultation status of patients with different injury conditions, and then the relationships between medical buildings in the hospital area may be determined based on the departments involved in the post-earthquake patient consultation process. Furthermore, the analysis may be performed according to the actual situation of the hospital area being studied by the user.

[0032] Specifically, the post-earthquake patient consultation process is obtained based on the hospital consultation status of patients with different levels of injury. Next, the patient's route to enter the relevant department is determined based on the departmental distribution in different medical buildings within the hospital area and the basic design principles of those buildings, and the relationships between the medical functions of each medical building within the hospital area are obtained.

[0033] The buildings with medical functions in the hospital area include the outpatient building, emergency building, medical technology building, and wards. The emergency building includes emergency treatment rooms and an EICU (Emergency Intensive Care Unit), the medical technology building includes an imaging center, operating rooms, an ICU (Intensive Care Unit), and a CCU (Coronary Heart Disease Care Unit), and the wards include inpatient wards.

[0034] In this embodiment, the department corresponding to the medical building a patient enters upon receiving treatment is determined by organizing the departmental distribution in different medical buildings and the basic design principles of those buildings. This allows for the determination of the specific functional classification of the hospital area, and enables the hospital area to be broken down into medical departments within different medical buildings.

[0035] For example, the patient consultation process after an earthquake is: Patients with red numbers are sorted into three groups: triage → emergency room → imaging center → operating room → ICU → general ward → discharge. For patients with yellow numbers, the process is divided into triage → emergency room / EICU → imaging center → operating room → ICU → general ward → discharge. For yellow-numbered patients whose injuries are not serious upon examination, the process is triage → emergency room / EICU → imaging center → general ward → discharge. Patients with green numbers can be triaged and then separated into general wards / discharge.

[0036] Patients with red numbers are those whose vital functions are impaired, altered, or unstable; patients with yellow numbers are those whose vital functions are partially impaired but not directly life-threatening; and patients with green numbers are those who are not in an emergency situation, are not in danger of death, and whose injuries will not affect vital functions.

[0037] S104 Based on the above consultation process and related information, establish a discrete event simulation model for providing emergency medical treatment to patients in the hospital area after an earthquake.

[0038] By determining the patient consultation process after an earthquake and the relationships between each medical building within the hospital area, it is possible to determine the patient's route to the hospital area, thereby establishing a discrete event simulation model for providing emergency medical treatment to patients in the hospital area after an earthquake. This model can show the waiting times when patients with different patient numbers enter the departments involved in the consultation process after an earthquake.

[0039] Specifically, the system determines the departments involved with each type of patient based on the patient consultation process for different patient numbers, determines the patient consultation route within the hospital area based on the relationships between the departments involved and the medical functions of the medical buildings, and then establishes a discrete event simulation model for providing emergency treatment to patients in the hospital area after an earthquake based on the consultation route.

[0040] In this embodiment, the discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake corresponds one-to-one with the patient emergency treatment process after the earthquake, and includes all processes from when patients with different numbers enter the hospital until when they leave the hospital. The discrete event simulation model uses the number of patients who enter the hospital area and receive treatment each day after the earthquake, and the number of resources in typical departments as input data. The treatment time required for departments involved in different processes differs, and the treatment times of different typical departments are determined as the basis for the patient's stay in the relevant department through methods such as literature reviews and expert consultations, thereby forming a discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake.

[0041] S106 Establish an elastoplastic analysis model based on the building plans, structural drawings, and equipment drawings of each medical building, and calculate the probability of failure of the members when subjected to an earthquake.

[0042] Based on Perform-3D, an elastoplastic analysis model is established for each medical building. Elastoplastic analysis calculations are performed on each medical building's elastoplastic analysis model to obtain engineering requirement parameters such as inter-story displacement angle and floor acceleration. Based on these engineering requirement parameters and the vulnerability information of structural members, non-structural members, and medical equipment involved in different medical buildings, the probability of functional failure of each member in different seismic scenarios is calculated and obtained.

[0043] The beams, columns, and shear walls of each building are all simulated using a fiber model, and the material composition of concrete and reinforcing steel is defined in the form of five-fold and three-fold lines, respectively.

[0044] Specifically, the step of calculating the probability of failure of a member when subjected to an earthquake includes performing an elastoplastic time history analysis calculation on an elastoplastic analysis model to obtain engineering requirement parameters for the medical building structure, and determining the probability of failure of each member when subjected to an earthquake based on said engineering requirement parameters. The engineering requirement parameters include inter-story displacement angle and floor acceleration.

[0045] S108 A fault tree model is established using components included in different medical departments, and the probability of failure of the components in the event of an earthquake and the probability of the medical department being shut down are calculated based on the fault tree model.

[0046] First, the components included in each typical department are determined based on the departmental attributes of each component. Next, a fault tree model of the typical department is established by establishing the logical relationship between each component and the typical department. The components mentioned above may include structural components, non-structural components, and medical devices in each typical department.

[0047] Specifically, fault tree analysis is performed on the interdependent logical relationships between the components of each typical department and the departmental medical functions to establish a fault tree model corresponding to each typical department. Some components in a typical department form an "or" relationship based on logical dependencies, meaning that damage to one type of component in each department will affect the use of that department. Other components in each department form an "and" relationship based on logical dependencies, meaning that a department will not be affected unless all components in that department are damaged.

[0048] S110 calculates the waiting time for a patient to enter a typical department in an undamaged state based on a discrete event simulation model, and reduces the number of available medical resources in the corresponding department based on the probability of each medical department being out of service, and calculates the waiting time for a patient to enter a typical department in an earthquake-damaged state based on a discrete event simulation model.

[0049] Changes in the number of resources in the medical sector represent the seismic resistance of the hospital area after the earthquake. By decomposing the seismic resistance of the hospital area into an evaluation of the damage status of components in different distribution areas of medical buildings, the impact of the earthquake on the aforementioned hospital area, which was predetermined, can be obtained.

[0050] The change in available resources for the relevant sectors after an earthquake is determined by the probability of the typical sectors becoming unusable. By determining the probability of the typical sectors becoming unusable and their distribution within medical buildings, the number of resources corresponding to the typical sectors is directly reduced. Specifically, the input events of the fault tree model are the probability of failure of each component of the typical sector after an earthquake, and the output events of the fault tree model are the probability of the typical sectors becoming unusable after an earthquake.

[0051] In this embodiment, the number of available medical resources corresponding to a typical department may be reduced depending on the probability of the typical department's post-earthquake function being shut down and the distribution of typical departments in medical buildings. All components corresponding to each department are determined based on fault trees of different departmental functions, and all components corresponding to each department constitute one unit of available resources for that department.

[0052] S112 The post-earthquake functionality of the hospital area is evaluated based on changes in waiting times when patients enter typical departments in both undamaged and earthquake-damaged conditions.

[0053] Based on a discrete-event simulation model concerning emergency treatment of patients after an earthquake in the established hospital area described above, the waiting times for patients entering departments involved in the response process are determined in both undamaged and earthquake-damaged conditions. The available resources for each typical department in the hospital area differ between the undamaged and earthquake-damaged conditions; in the undamaged condition, available resources are all the resources of each typical department, while in the earthquake-damaged condition, available resources are those after resource reduction. Waiting times for patients with different numbers in the same department in the same process are compared, thereby correlating the change in waiting times with the post-earthquake functionality of the hospital area and completing the evaluation of the post-earthquake functionality of the hospital area.

[0054] Specifically, the number of patients entering the hospital area for treatment each day and the number of resources in typical departments within the hospital area are used as input data for a discrete event simulation model, and the waiting time for patients entering typical departments in an undamaged state is used as output data. After an earthquake, the number of patients entering the hospital area for treatment each day and the number of resources in typical departments within the hospital area after the decrease are used as input data for the discrete event simulation model, and the waiting time for patients entering major departments in an earthquake-damaged state is used as output data.

[0055] Waiting times are the waiting times when patients with different patient numbers enter typical departments involved in the treatment process, and these typical departments include the emergency room, EICU, operating room, ICU wards, imaging center, and patient rooms. The input data for the discrete event simulation model is the number of patients who enter the hospital area for treatment each day and the number of resources in typical departments within the hospital area. The output is the waiting time when patients enter the departments involved in the treatment process. By classifying and organizing the above patient waiting times, the average daily waiting time when patients with different patient numbers enter the departments involved in the treatment process is obtained.

[0056] The method for evaluating the post-earthquake functionality of the hospital area according to this embodiment establishes a discrete event simulation model for evaluating the post-earthquake functionality of the hospital area by acquiring the patient consultation process after an earthquake and the distribution of typical departments in the medical buildings of the hospital area. Furthermore, it determines the probability of functional failure of typical departments after an earthquake by establishing an elastoplastic analysis model for each medical building in the hospital area and a fault tree model for the typical departments distributed therein, thereby determining the number of resources in each typical department under undamaged and earthquake-damaged conditions. Based on the discrete event simulation model for evaluating the post-earthquake functionality of the hospital area, the waiting times when patients enter key departments under undamaged and earthquake-damaged conditions are determined and compared, and this is used as an evaluation criterion for the post-earthquake functionality of the hospital area to evaluate its post-earthquake functionality. This evaluation method improves the efficiency of post-earthquake functionality in the hospital area and provides important data support for subsequent reinforcement and renovation of the hospital area.

[0057] In one embodiment, a method is provided to establish a discrete event simulation model that evaluates the post-earthquake function of a hospital area by acquiring the patient consultation process after an earthquake and the relationships between each medical building in the hospital area. Specifically, steps (1) to (3) below may be referenced. In step (1), the post-earthquake patient consultation process is determined based on the patient consultation process for different injury types, and in this flowchart, arrows connect the processes vertically, as shown in the diagram illustrating the post-earthquake patient consultation process in Figure 2, with arrows of different intensity colors representing patients of different numbers. In step (2), the distribution of medical buildings within the hospital area and the distribution of departments within the medical buildings are obtained, and the relationships between medical buildings within the hospital area are determined. In step (3), a discrete event simulation model is established to evaluate the post-earthquake functionality of the hospital area by combining the patient consultation process after an earthquake with the relationships between the various medical buildings in the hospital area. Figure 3 shows a schematic diagram of the discrete event simulation model for evaluating the post-earthquake functionality of the hospital area according to an embodiment of the present invention. This model is established based on the distribution of departments in the hospital area and the patient consultation process, and therefore embodies the changes in the floor where the patient is located when moving from the previous process to the next process in the discrete event simulation model.

[0058] A hospital area is a complex system, consisting of multiple medical buildings, and the departments distributed across these different medical buildings also vary according to their functional differences. In this embodiment, the impact of an earthquake on the functionality of the hospital area is decomposed into the probability of damage to components in different departments distributed across each medical building. Figure 4 shows a schematic diagram of a hospital area model according to an embodiment of the present invention.

[0059] In one embodiment, this embodiment provides a specific example in which an elastoplastic analysis model is obtained for each medical building, an elastoplastic time history analysis calculation is performed on the elastoplastic analysis model to obtain engineering requirement parameters, and the probability of damage to each member in a predetermined earthquake scenario is determined based on the vulnerability information and engineering requirement parameters of each member. Based on Perform-3D, an elastoplastic analysis model is established. Figure 5 shows the elastoplastic models of four different medical buildings disassembled from the hospital area shown in Figure 4. An elastoplastic time history analysis calculation is performed on the elastoplastic analysis model to obtain the engineering requirement parameters for each medical building structure. These engineering requirement parameters include inter-story displacement angle and floor acceleration. Based on the vulnerability information of each member, the engineering requirement parameters, and the seismic vulnerability model, the probability of damage to each member in a given seismic scenario is determined.

[0060] In a specific embodiment, fault tree analysis may be performed on the damage information and medical functions of the components of each typical sector to establish a fault tree model corresponding to each typical sector. The input events of the fault tree model are the probability of failure of each component of the typical sector after an earthquake, and the output events of the fault tree model are the probability of the typical sector's function becoming unusable after an earthquake.

[0061] Based on the damage status of all components included in a typical department and the relationship between each system in the typical department (e.g., structural system, exterior system, heating system, power supply system, water supply system, drug supply system, inter-hospital transport system, and specialized equipment system), and the relationship between each system in the typical department and the medical function of the typical department, it is possible to obtain a causal relationship between the damage status of all components included in a typical department and the medical function of the typical department, thereby establishing a fault tree model for the typical department. For example, Figure 6 shows a fault tree model for a typical department, where the typical department is shown as an emergency room. The highest-level event in the function fault tree model for the emergency room is the emergency room outage. The emergency room outage is divided into basic function outage or system function outage. Basic function and system function have an "or" relationship with operating room outage. Basic functions include structural system, exterior system, heating system, and power supply. The system includes a water supply system and exhibits an "or" relationship with the basic function; the system function includes a drug supply system, a transfer system, and a specialized equipment system and exhibits an "or" relationship with the system function; the drug supply system in the emergency room includes medical supply cabinets and medicine shelves, and their relationship is "or," meaning that damage to either the medical supply cabinets or medicine shelves will affect the shutdown of the drug supply system; the transfer system in the emergency room includes a simple rescue vehicle and a multi-functional rescue vehicle, and their relationship to the transfer system is "and," meaning that damage to both the simple rescue vehicle and the multi-functional rescue vehicle will not affect the shutdown of the transfer system; and the specialized equipment system in the emergency room includes an intubation kit, a cardiac defibrillator, a monitor, a ventilator, a gastric lavage device, a cardiac pacemaker, and an electrocardiograph, and their relationship to the specialized equipment system is "or."

[0062] In Figure 6, E1 is structural system failure, E2 is slab failure, E3 is bulkhead failure, E4 is ceiling failure, E5 is heating pipe failure, E6 is air conditioning unit failure, E7 is power distribution cabinet failure, E8 is normal power failure, E9 is emergency generator failure, E10 is water supply pipe failure, E11 is cooling tower failure, E12 is water storage tank failure, E13 is water intake pump failure, E14 is locker overturning, E15 is medicine cabinet overturning, E16 is simple rescue vehicle sliding more than 1m, E17 is multi-functional rescue vehicle sliding more than 1mm, E18 is tracheal intubation kit overturning, E19 is cardiac defibrillator failure, E20 is monitor failure, E21 is ventilator failure, E22 is gastric lavage device failure, E23 is cardiac pacemaker failure, and E24 is electrocardiograph failure.

[0063] The earthquake damage information events for each type of component constitute basic events in the fault tree, and the probability of a basic event occurring (i.e., the probability of earthquake damage) can be used to calculate the probability of the highest-level event occurring, i.e., the probability of the typical department's post-earthquake function being shut down, using the logic of the fault tree. For example, in the above case, the probabilities of post-earthquake function shutdown for each typical department are 6.14% for the imaging center, 2.03% for the operating room, 2.38% for the ICU, 3.05% for the CCU, 12.76% for the EICU, 6.55% for the emergency room, and 16.63% for the general ward.

[0064] In one embodiment, a specific example of determining the number of resources for each medical department according to the departmental distribution of each medical building in the hospital area and the changes in the available resources of the relevant departments after the earthquake is as follows: the hospital area includes one outpatient building, one medical technology building, and two inpatient buildings, with the medical technology building including an emergency department. Statistics on the patient consultation process after the earthquake may determine that the departments involved in the process of patient admission include an imaging center, operating rooms, ICU, CCU, EICU, emergency treatment rooms, and general wards. Exemplary, statistics on the distribution of departments in each medical building may indicate that the number of resources for each medical department is 13 units for the imaging center, 17 units for the operating rooms, 30 units for the ICU, 21 units for the CCU, 11 units for the EICU, 9 units for the emergency treatment rooms, and 910 units for the general wards, where one unit of resources refers to all components included in the system function of the established fault tree model of each medical department. Based on the probability of each medical department being shut down, determined by the functional logic fault tree model of a typical department in the above embodiment, the changes in available resources for each department after an earthquake are determined. For example, in a given earthquake scenario, the probability of the emergency room being shut down is 6.55%, and the number of available units in the emergency room is 9. By directly multiplying the number of available units in the emergency room physically, i.e., 9 x 6.55% = 0.5895 ≈ 1, therefore, the number of available units in the emergency room after the earthquake is 8. This method can be used to determine the changes in the number of available resources for other related departments after an earthquake. After the earthquake, the imaging center has 12 units of resources, the operating room has 17 units of resources, the ICU has 29 units of resources, the CCU has 20 units of resources, and the general ward has 814 units of resources.

[0065] In one embodiment, a specific embodiment for determining and comparing waiting times for patients entering departments involved in the response process in undamaged and earthquake-damaged states is performed based on a discrete event simulation model that evaluates the post-earthquake functionality of a hospital area. This is achieved by inputting the number of patients who enter the hospital area for treatment each day and the number of resources (units) distributed in each medical building into the discrete event simulation model that evaluates the post-earthquake functionality of the hospital area. The characteristics of the discrete event simulation model allow for obtaining the waiting time for each patient entering the department related to the process. By statistically analyzing and classifying the waiting times of patients with different numbers, the average daily waiting time for patients with different numbers entering different departments each day is calculated, and this average daily waiting time is the patient waiting time in the undamaged state. By adjusting the number of resources (units) distributed in each medical building to the number of available resources for the relevant departments after the earthquake and performing the above step, the waiting time for each patient entering the department related to the process after the earthquake can be obtained. Based on the above step, the average daily waiting time for patients with different numbers entering different departments is obtained through statistical analysis. The average daily waiting times for patients with the same patient number admitted to the same department under both undamaged and earthquake-damaged conditions will be compared, and changes in waiting times will be observed to complete the assessment of post-earthquake functionality in the hospital area.

[0066] As shown in the comparison chart of waiting times when patients enter process-related departments after resource depletion in undamaged and earthquake-damaged conditions, the horizontal axis in the figure represents the time when patients enter, the vertical axis represents the waiting time when patients enter process-related departments, the solid line in the figure represents the average daily waiting time when patients enter process-related departments in undamaged conditions, and the dotted line in the figure represents the average daily waiting time when patients enter process-related departments after an earthquake. Figure 7a shows a schematic comparison of the average daily waiting times for patients with red numbers entering the emergency room after resource depletion in both undamaged and earthquake-damaged conditions. As shown in the figure, the longest waiting times in both cases occurred on the second day. In the undamaged condition, the waiting time on the second day was 329.34 minutes, while after the earthquake, it was 389.91 minutes, an increase of 60.57 minutes. Simultaneously, on the third day, the waiting time in the emergency room was 0.85 minutes in the undamaged condition, while after the earthquake, it was 14.25 minutes, an increase of 1578.86%. Figure 7b shows a schematic comparison of the average daily waiting times for patients with yellow numbers entering the emergency room and EICU under undamaged and earthquake-damaged conditions. The longest waiting times in both cases occurred on the second day. Under undamaged conditions, the waiting time on the second day was 4442.59 minutes, while after the earthquake, it was 4728.66 minutes, an increase of 286.07 minutes. Simultaneously, on the 12th day, the waiting time was 14.91 minutes under undamaged conditions and 28.53 minutes under earthquake-damaged conditions, an increase of 91.40%. Figure 7c shows a schematic comparison of the average daily waiting times for patients with red numbers and patients with yellow numbers entering the operating room under undamaged and earthquake-damaged conditions. In both cases, the waiting time was 10 minutes or less, and there was no difference in waiting times between undamaged and earthquake-damaged conditions, indicating that there was no congestion of patients in the operating room.

[0067] The method for evaluating post-earthquake medical functions of a hospital area according to an embodiment of the present invention establishes a discrete event simulation model for evaluating the post-earthquake functions of a hospital area, intuitively presents the evaluation results using the waiting time when patients enter departments involved in the response process as the basis for evaluation, determines resource changes in typical departments using vulnerability analysis and fault tree models, realizes the decomposition of the evaluation of post-earthquake functions of a hospital area into determining post-earthquake damage to members in typical departments, provides an important means for evaluating the post-earthquake functions of a hospital area, and has significant implications for the design, renovation, and improvement of the seismic resistance of hospital areas.

[0068] Figure 8 shows a schematic diagram of the structure of an evaluation device for post-earthquake functions of a hospital area, considering the combination of building functions according to an embodiment of the present invention. Acquisition module 801 for obtaining the patient consultation process for different injury levels after an earthquake, and the relationships between medical functions of each medical building in the hospital area, Based on the aforementioned consultation process and related matters, a model establishment module 802 is provided for establishing a discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake, A failure probability determination module 803 is used to establish an elastoplastic analysis model based on the building drawings, structural drawings, and equipment drawings of each of the aforementioned medical buildings, and to calculate the probability of failure when the members are subjected to an earthquake. A fault tree model is established using components included in different medical departments, and a failure probability determination module 804 is used to calculate the probability of failure of the components when they are subjected to an earthquake and the probability of the medical department being shut down based on the fault tree model. A decision module 805 for calculating the waiting time when a patient enters a typical department in an undamaged state based on the discrete event simulation model, and for reducing the number of available medical resources in the corresponding department based on the probability of each medical department being out of service, and for calculating the waiting time when a patient enters a typical department in an earthquake-damaged state based on the discrete event simulation model, The system includes an evaluation module 806 for evaluating the post-earthquake functionality of the hospital area based on changes in waiting times when patients enter typical departments in the undamaged state and the earthquake-damaged state.

[0069] The post-earthquake function evaluation device for a hospital area considering the combination of the above-mentioned building functions according to an embodiment of the present invention establishes a discrete event simulation model for evaluating the post-earthquake function of a hospital area by acquiring the patient consultation process after an earthquake and the distribution of departments in each building of the hospital area. It then establishes elastoplastic analysis models for different medical buildings and functional fault tree models for typical departments to determine the probability of damage to typical departments in a given earthquake scenario, thereby determining the change in the number of available resources in typical departments. Subsequently, it acquires the change in waiting time when patients enter departments involved in the process under undamaged and earthquake-damaged conditions, and completes the evaluation of the post-earthquake function of the hospital area. The evaluation method is simple and provides important reference information for the planning and design of hospital areas.

[0070] The post-earthquake function evaluation system for a hospital area considering the combination of the above-mentioned building functions according to an embodiment of the present invention has the same implementation principle and resulting technical effects as the above embodiment. For the sake of clarity, where the system embodiment is not mentioned, the corresponding content of the above-mentioned method embodiment may be referred to.

[0071] An embodiment of the present invention provides an electronic device comprising a processor and a storage device, wherein a computer program that can be executed by the processor is stored in the storage device, and when the processor executes the computer program, it realizes the steps of the method according to the above embodiment.

[0072] Embodiments of the present invention provide a computer-readable medium in which computer-executable instructions are stored, and when the computer-executable instructions are called and executed by a processor, the computer-executable instructions cause the processor to implement the method described in the above embodiment.

[0073] As those skilled in the art will understand, the implementation of all or part of the processes in the above embodiment may be instructed to be completed by a computer program, the program may be stored in a computer-readable storage medium, the program may include the processes described in each of the above embodiment examples when executed, and the storage medium may be a memory, magnetic disk, optical disk, etc.

[0074] In this specification, relational terms such as “First” and “Second” are merely used to distinguish one entity or operation from another, and do not necessarily require or suggest any actual relationship or order between these entities or operations. Furthermore, the terms “include,” “incorporate,” or any other variation thereof are intended to include non-exclusive inclusion, thereby causing a process, method, article, or apparatus containing a set of elements to include not only those elements but also other elements not explicitly listed, or elements specific to such process, method, article, or apparatus. Unless otherwise specifically limited, the elements limited by the phrase “includes XX” do not preclude the existence of other identical elements in a process, method, article, or apparatus containing such elements.

[0075] Each example in this specification is described in an incremental manner, and in each example, the emphasis is on the differences from the other examples. Similarities between examples should be referenced to one another.

[0076] Those skilled in the art can implement or use the present invention based on the above description of the disclosed embodiments. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein will be implemented in other embodiments without departing from the spirit or scope of the invention. Accordingly, the present invention should not be limited to these embodiments shown herein, but should conform to the broadest scope that matches the principles and novel features disclosed herein. [Explanation of Symbols]

[0077] 801 Acquisition Module 802 Model Establishment Module 803 Destruction Probability Determination Module 804 Discontinuation Probability Determination Module 805 Decision Module 806 Evaluation Module

Claims

1. A method for evaluating the post-earthquake function of a hospital area, taking into account the integration of building functions, To obtain information on the patient consultation process for different levels of injury after an earthquake, and the relationships between medical functions of various medical buildings within a hospital area, Based on the aforementioned consultation process and related matters, establish a discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake, Based on the building plans, structural plans, and equipment plans of each of the aforementioned medical buildings, an elastoplastic analysis model is established, and the probability of failure of the members when subjected to an earthquake is calculated. A fault tree model is established using components included in different medical departments, and the probability of failure of said components in the event of an earthquake and the probability of the medical department being shut down based on the fault tree model are calculated. Based on the discrete event simulation model, the waiting time when a patient enters a typical department in an undamaged state is calculated, and the number of available medical resources in the corresponding department is reduced by the probability of each medical department being out of service, and based on the discrete event simulation model, the waiting time when a patient enters a typical department in an earthquake-damaged state is calculated, A method for evaluating the post-earthquake functionality of a hospital area, taking into account the combination of building functions, characterized by comprising: evaluating the post-earthquake functionality of the hospital area based on changes in waiting times when patients enter typical departments in the undamaged state and the earthquake-damaged state.

2. To obtain information on the patient consultation process for different levels of injury after an earthquake, and the relationships between medical functions of various medical buildings within a hospital area, To obtain the post-earthquake patient consultation process according to the hospital visit status of patients with different levels of injury, This includes organizing the distribution of departments in different medical buildings within the hospital area and determining the route patients take when entering departments related to the aforementioned consultation process, and obtaining the relationships between the medical functions of each medical building within the hospital area, based on the basic design principles of those buildings. The method according to claim 1, wherein the buildings with medical functions in the hospital area include an outpatient building, an emergency building, a medical technology building, and wards, the emergency building includes the functions of an emergency treatment room and an EICU, the medical technology building includes the functions of an imaging center, an operating room, an ICU, and a CCU, and the wards include the functions of an inpatient ward.

3. The patient consultation process after the earthquake is as follows: For patients with red numbers, the process includes triage → emergency room → imaging center → operating room → ICU → general ward → discharge. For patients with yellow numbers, the process includes triage → emergency room / EICU → imaging center → operating room → ICU → general ward → discharge. For patients with yellow numbers whose injuries are not serious upon examination, the process is triage → emergency room / EICU → imaging center → general ward → discharge. The method according to claim 2, characterized in that, in the case of patients with green numbers, triage → general ward / discharge.

4. The method according to claim 3, characterized in that the patients with the red numbers are patients whose vital functions are impaired, altered, or unstable; the patients with the yellow numbers are patients whose vital functions are partially impaired but not directly life-threatening; and the patients with the green numbers are patients who are not in an emergency situation, are not in danger of death, and whose injuries do not affect important functions.

5. Based on the aforementioned consultation process and related matters, establishing a discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake is necessary. Based on the patient consultation process of the aforementioned different numbered patients, the departments involved with each type of numbered patient are determined, and based on the relationship between the medical functions of the involved departments and the medical buildings, the consultation route for each type of numbered patient within the hospital area is determined. The method according to claim 4, characterized by comprising establishing a discrete event simulation model for providing emergency treatment to patients in the hospital area after an earthquake, based on the aforementioned patient consultation route.

6. Reducing the number of available medical resources in each medical department based on the aforementioned probability of use suspension means that The input events of the fault tree model are defined as the failure probabilities of each component in a typical sector after an earthquake, and the output events of the fault tree model are defined as the probability of the typical sector's function becoming unusable after an earthquake. The method according to claim 1, further comprising reducing the number of available medical resources corresponding to the typical sector in accordance with the probability of the typical sector's post-earthquake function failure and the distribution of the typical sector in medical buildings.

7. Calculating the waiting time when a patient enters a typical department in an undamaged state based on the discrete event simulation model, and calculating the waiting time when a patient enters a typical department in an earthquake-damaged state based on the discrete event simulation model, The number of patients entering the hospital area for treatment each day and the number of resources in typical departments within the hospital area are used as input data for the discrete event simulation model, and the waiting time when a patient enters a typical department in an undamaged state is used as output data. The method according to claim 1, characterized in that the number of patients who enter the hospital area for treatment each day after an earthquake and the number of resources in typical departments in the hospital area after the reduction are used as input data for the discrete event simulation model, and the waiting time when patients enter major departments in the earthquake damage state is used as output data.

8. The method according to 7, wherein the aforementioned waiting time is the waiting time when patients with different numbers enter a typical department involved in the consultation process, and the aforementioned typical department includes an emergency room, an EICU, an operating room, an ICU ward, an imaging center, and a ward.

9. Establishing a fault tree model with components belonging to different medical sectors is The method according to claim 1, characterized in that it determines which members are included in each typical department based on the departmental attributes of each member, establishes a fault tree model of the typical department by establishing a logical relationship between each of the members and the typical department, and includes the fact that the members include structural members, non-structural members and medical devices of each of the typical departments.

10. A system for evaluating the post-earthquake functionality of a hospital area, taking into account the integration of building functions, Acquisition modules for obtaining information on the patient consultation process for different injury levels after an earthquake, and the relationships between medical functions of various medical buildings within a hospital area, A model establishment module for establishing a discrete event simulation model for providing emergency medical treatment to patients in a hospital area after an earthquake, based on the aforementioned consultation process and related matters, A failure probability determination module for establishing an elastoplastic analysis model based on the building drawings, structural drawings, and equipment drawings of each of the aforementioned medical buildings, and for calculating the failure probability when the members are subjected to an earthquake, A fault tree model is established using components included in different medical departments, and a failure probability determination module is used to calculate the probability of failure of the components when subjected to an earthquake and the probability of the medical department being shut down based on the fault tree model. A decision module for calculating the waiting time when a patient enters a typical department in an undamaged state based on the discrete event simulation model, and for reducing the number of available medical resources in the corresponding department based on the probability of each medical department being out of service, and for calculating the waiting time when a patient enters a typical department in an earthquake-damaged state based on the discrete event simulation model, An evaluation system for evaluating the post-earthquake functionality of a hospital area, taking into account the combination of building functions, comprising: an evaluation module for evaluating the post-earthquake functionality of a hospital area based on changes in waiting times when patients enter typical departments in the undamaged state and the earthquake-damaged state.

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