Diagnosis evaluation method and system for simulation teaching and computer equipment

Abstract

The invention relates to the technical field of diagnosis, in particular to a diagnosis evaluation method and system for simulation teaching and computer equipment. The parameters of the blood vessel model are dynamically adjusted based on the user operation, the tension, elasticity and blood flow velocity change of the blood vessel can be simulated according to different health states, so that the reality sense of simulation is enhanced, the user can be helped to experience the change of the blood vessel reaction under different blood pressure states in various situations, and the user experience is improved. The tension and air pressure change of the blood vessel are simulated through the tactile feedback device, so that a learner can perceive physical feedback similar to that in real blood pressure measurement in the operation process, the real experience of the blood vessel reaction in the blood pressure measurement process is enhanced, the user can better understand and master the actual operation skill, and the user experience is improved. Software can monitor the operation of a user in real time and provide tactile and visual feedback, so that a learner is helped to find and correct errors in time in the measurement process.

Description

Technical Field

[0001] The present invention relates to the field of diagnostic technologies, and particularly to a diagnostic evaluation method, system, and computer device for simulation teaching. Background Art

[0002] Common errors in traditional sphygmomanometers stem from the experience of the operator, the influence of the measurement environment, etc. For clinical doctors in the initial training or learning stage, it is quite difficult to measure blood pressure using traditional sphygmomanometers, and it is hard to accurately master the measurement techniques, which easily causes measurement errors. In addition, some simulated blood pressure measurement methods for real sample collection, such as using a simulation model or software to simulate blood pressure changes, also have problems of lack of realism and operational intervention, and it is difficult to fully meet the needs of simulation teaching.

[0003] In existing medical simulation teaching, there is a lack of a dynamic and realistic interactive blood pressure and vascular response simulation environment. Specifically, it is because the vascular model parameters cannot be dynamically reconstructed based on user operations, resulting in insufficient simulation authenticity for different health states. Summary of the Invention

[0004] The main object of the present invention is to provide a diagnostic evaluation method for simulation teaching, aiming to solve the technical problems in the prior art.

[0005] The present invention proposes a diagnostic evaluation method for simulation teaching, including: Creating a virtual vascular structure in teaching software to simulate the arteries and veins of the human body, and setting different simulated blood pressure scenarios to help users learn how to operate and diagnose under various blood pressure conditions; Using a tactile feedback device to simulate different vascular tensions and air pressure changes, constructing a virtual patient model by monitoring and feeding back the simulated blood pressure changes of the patient in real time, controlling the blood pressure value through software, and giving real-time simulation results; The user selects the health condition of the simulated patient and starts the blood pressure measurement program. During the measurement process, the software simulates blood pressure changes through sensors to display different pressure points; The system simulates the errors occurring during the measurement process, reminds the user to make adjustments through tactile feedback and visual feedback, provides virtual expert guidance, and informs the user of improved operations through voice and text feedback.

[0006] Preferably, the step of creating a virtual vascular structure in the teaching software includes: Performing three-dimensional reconstruction of blood vessels using medical image data to create accurate artery and vein models; Setting different physical properties according to different types of blood vessels, where the physical properties include elasticity, thickness, and blood flow rate; Provide multiple blood pressure scenarios, where the blood pressure scenarios include normal blood pressure, high blood pressure, and low blood pressure, and the vascular tension and blood flow characteristics will vary under each blood pressure scenario; Allow the user to adjust the blood pressure value in real time, and the system will dynamically adjust the vascular tension and blood flow rate according to the input blood pressure value.

[0007] Preferably, the step of using the tactile feedback device to simulate different vascular tensions and air pressure changes includes: Use a handheld device with tactile feedback to simulate different vascular tensions and air pressure changes; When the user presses on the virtual blood vessel, the device will provide corresponding resistance feedback according to the simulated vascular tension, simulating the air pressure change during the blood pressure measurement process; Provide corresponding tactile feedback according to the simulated air pressure value to enhance the sense of reality; Simulate the working principle of a blood pressure sensor through software to monitor and feedback the blood pressure changes of the simulated patient in real time; Display the blood pressure value of the simulated patient on the screen in real time, and display the change trend of the blood pressure through a graphical interface.

[0008] Preferably, the step of the user selecting the health condition of the simulated patient and starting the blood pressure measurement program, and the software simulating the blood pressure change to display different pressure points during the measurement process includes: Select a virtual patient from the patient database and set their health condition and blood pressure parameters: According to the health condition, set the lowest pressure in the artery during heart diastole and the highest pressure in the artery during heart systole; Start the blood pressure measurement program, the system begins to simulate the blood pressure signal, and dynamically adjusts the parameters of the blood pressure signal according to the operations during the measurement process; Simulate the working principle of a blood pressure sensor through software to monitor and record the blood pressure changes in real time, display the blood pressure value and waveform on the screen in real time, and display the change of the pressure point through a graphical interface; Dynamically adjust the blood pressure parameters according to the selected health condition of the simulated patient, and the calculation formula for generating the time series of the blood pressure waveform is as follows: ; Where DP is the lowest pressure in the artery during heart diastole, PP is the pulse pressure, t is the time, T is the cardiac cycle, ψ is the phase angle, and P(t) is the blood pressure at time t.

[0009] Preferably, the step of the system simulating the errors occurring during the measurement process and reminding the user to make adjustments through tactile feedback and visual feedback includes: The detected cuff pressure exceeds the preset maximum pressure value, or the detected cuff pressure fails to reach a sufficient height to block blood flow; Simulate the feeling of excessive pressure and the feeling of a loose cuff through a tactile feedback device; Display the pressure value on the interface and remind the user through color changes. The virtual expert prompts that if the pressure is too high, please appropriately reduce the pressure, and if the pressure is insufficient, please increase the pressure; Display a schematic diagram of the correct cuff winding position on the interface, and prompt that if the cuff position is too low, please adjust it upward, and if the cuff position is too high, please adjust it downward; The inflation and deflation speeds are incorrect. Too fast inflation causes discomfort to the patient and affects the measurement accuracy. Too slow or too fast deflation affects the capture of Korotkoff sounds; Detect whether the inflation time is within a reasonable range, detect whether the deflation speed meets the standard, simulate the speed feeling of inflation and deflation through a tactile device, display the inflation and deflation speed curves and compare them with the standard curves.

[0010] Preferably, the steps of the system simulating errors occurring during the measurement process and reminding the user to make adjustments through tactile feedback and visual feedback further include: Provide guidance and suggestions in real time according to the user's operations, and identify the error types in the user's operations through an algorithm; Generate corresponding voice and text feedback information according to the error types, provide specific operation suggestions to help the user improve the operations; Provide targeted suggestions according to different types of errors, provide correct operation steps, and guide the user to make corrections; Simulate the change of cuff pressure, including the inflation process and the deflation process.

[0011] This application also provides a diagnostic evaluation system for simulation teaching, including: A user interface module that provides a graphical user interface to enable users and teachers to conveniently operate and manage the simulation system, including user authentication, provides the main operation interface of the system, including selecting medical records, starting the simulation, viewing historical records, and provides detailed usage instructions and operation steps; A virtual patient module that generates and manages the physiological data of virtual patients, including blood pressure and heart rate, stores the data of virtual patients in different health conditions, allows users to select different virtual patients, set their physiological states, and adjust the physiological parameters of virtual patients in real time; A vascular structure module that creates and manages virtual vascular structures, simulates different types of blood vessels and their physical properties, reconstructs the three-dimensional model of blood vessels using medical image data, defines the physical properties of different blood vessels, and dynamically adjusts the tension and blood flow characteristics of blood vessels according to blood pressure changes; Blood pressure measurement simulation module, which simulates various operations and device responses during blood pressure measurement. It includes virtual measurement devices such as sphygmomanometers and cuffs, and simulates the complete operation process of blood pressure measurement, including cuff winding, inflation, and deflation, and real-time monitors and records blood pressure changes during the measurement process. Tactile feedback module, which simulates the tactile changes during blood pressure measurement through a tactile feedback device. It connects to the tactile feedback device and simulates different vascular tensions and air pressure changes according to the state of the virtual patient and the operation steps, and reminds the user of errors in the operation through tactile feedback. Real-time monitoring and feedback module, which real-time monitors the user's operations and provides feedback. It simulates the working principle of a blood pressure sensor, real-time monitors blood pressure changes, and displays blood pressure values and change trends on the screen in real time. It detects errors in the operation and informs the user of the error reasons and improvement methods through visual, tactile, and voice feedback.

[0012] Preferably, the real-time monitoring and feedback module includes providing real-time guidance and suggestions from virtual experts, providing real-time feedback on the user's operations through voice or text, informing them of the error reasons and improvement methods, providing specific operation suggestions according to the user's operation situation, providing operation videos and animations to help the user understand the correct operation steps, recording the user's operation history and conducting evaluations, recording the process and results of each simulation operation, generating evaluation reports including operation accuracy, time, and number of errors, tracking the user's learning progress, providing personalized learning suggestions, managing system settings and maintenance, managing user information including adding, deleting, and modifying user information, setting roles and permissions for different users, and providing system update and troubleshooting functions.

[0013] The present invention also provides a computer device, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the steps of the above-mentioned diagnostic evaluation method for simulation teaching are implemented.

[0014] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned diagnostic evaluation method for simulation teaching are implemented.

[0015] The beneficial effects of the present invention are as follows: By dynamically adjusting the parameters of the blood vessel model based on user operations, the present invention can simulate the changes in the tension, elasticity, and blood flow velocity of blood vessels according to different health states. This not only enhances the realism of the simulation but also helps users experience the changes in blood vessel responses under different blood pressure states in various scenarios, thereby improving the accuracy of operations. By using a haptic feedback device to simulate the tension of blood vessels and air pressure changes, learners can perceive physical feedback similar to that in real blood pressure measurements during operations, enhancing the real experience of blood vessel responses during blood pressure measurement and helping users better understand and master practical operation skills. The software can monitor the user's operations in real time and provide haptic and visual feedback to help learners detect and correct errors in a timely manner during the measurement process. The system allows users to select different simulated patients and their health conditions, and conduct personalized learning for the blood pressure and blood vessel conditions of different patients. This customized learning method can provide corresponding exercises according to the user's learning progress and needs, enhancing the pertinence and practicality of learning. Corrections are made through haptic feedback, visual cues, or voice guidance. This immediate feedback mechanism can help users adjust in a timely manner and avoid the accumulation of incorrect operations. Through virtual simulation, users can be exposed to different health states and blood pressure scenarios in a relatively short period of time, and the system can adjust according to the operation feedback of learners. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic flowchart of the method according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the system according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic internal structure diagram of a computer device according to an embodiment of the present application.

[0019] The realization, functional features, and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] As Figure 1 shown, the present application provides a diagnostic evaluation method for simulation teaching, including: S1. Create a virtual blood vessel structure in the teaching software to simulate the arteries and veins of the human body, and set different simulated blood pressure scenarios to help users learn how to operate and diagnose under various blood pressure conditions; S2. Use a tactile feedback device to simulate different vascular tension sensations and air pressure changes, construct a virtual patient model by monitoring and feeding back the simulated patient blood pressure changes in real time, control the blood pressure value through software, and give real-time simulation results; S3. The user selects the health condition of the simulated patient and starts the blood pressure measurement program. During the measurement process, the software simulates blood pressure changes through sensors to display different pressure points; S4. The system simulates errors that occur during the measurement process, reminds the user to make adjustments through tactile feedback and visual feedback, provides virtual expert guidance, and informs the user of improvement operations through voice and text feedback.

[0022] As described in the above steps S1 - S4, the present invention creates a virtual blood vessel structure in the teaching software to simulate the arteries and veins of the human body, and sets different simulated blood pressure scenarios to help users learn how to operate and diagnose under various blood pressure conditions. A tactile feedback device is used to simulate different blood vessel tensions and air pressure changes, and the simulated blood pressure changes of the patient are monitored and fed back in real time to construct a virtual patient model. The blood pressure value is controlled by the software, and real - time simulation results are given. The user selects the health status of the simulated patient and starts the blood pressure measurement program. During the measurement process, the software simulates blood pressure changes through sensors to display different pressure points. The system simulates the errors that occur during the measurement process, and reminds the user to make adjustments through tactile feedback and visual feedback, provides virtual expert guidance, and informs the user of improvements to the operation through voice and text feedback. By dynamically adjusting the parameters of the blood vessel model based on the user's operation, it is possible to simulate the changes in blood vessel tension, elasticity, and blood flow velocity according to different health states (such as normal blood pressure, hypertension, hypotension). This not only enhances the realism of the simulation but also helps users experience the changes in blood vessel responses under different blood pressure states in various scenarios, thereby improving the accuracy of operation. By using a tactile feedback device to simulate blood vessel tension and air pressure changes, learners can perceive physical feedback similar to that in real blood pressure measurement during the operation process, enhancing the real experience of blood vessel responses during blood pressure measurement and helping users better understand and master practical operation skills. The software can monitor the user's operation in real time and provide tactile and visual feedback to help learners detect and correct errors in a timely manner during the measurement process. For example, if the user's operation is incorrect, the system reminds them to adjust the operation through tactile and visual signals, thus preventing users from developing bad habits due to incorrect operations. Through voice and text feedback, the system can provide users with detailed operation guidance and improvement suggestions. The introduction of this virtual expert system not only reduces the pressure of manual guidance but also ensures that users can receive timely and professional guidance during self - learning. The system allows users to select different simulated patients and their health statuses, and conduct personalized learning for the blood pressure and blood vessel conditions of different patients. This customized learning method can provide corresponding exercises according to the user's learning progress and needs, enhancing the pertinence and practicality of learning. By providing different blood pressure scenarios (such as normal, hypertension, hypotension, etc.), users can comprehensively master how to operate and diagnose under different circumstances, improving their ability to handle various clinical scenarios. Through virtual simulation, users can perform multiple operations in a risk - free environment, try out and adjust their skills without worrying about causing any harm or discomfort to real patients. This risk - free practice method can deepen users' understanding and proficiency in the blood pressure measurement operation process. The system can automatically identify the errors that users may make during the operation process and correct them through tactile feedback, visual prompts, or voice guidance. This instant feedback mechanism can help users make timely adjustments and avoid the accumulation of incorrect operations. Through virtual simulation,Users can be exposed to different health conditions and blood pressure scenarios in a relatively short period of time. The system can adjust according to the operation feedback of the learners, avoiding the problem of slow teaching progress caused by limited patient resources in traditional teaching. By tracking the operation performance of the users, the system can provide personalized learning suggestions according to the learning situation of the users, helping the learners master more complex operation skills in a relatively short time.

[0023] In one embodiment, step S1 of creating a virtual blood vessel structure in the teaching software includes: S11. Use medical image data for three-dimensional reconstruction of blood vessels to create accurate artery and vein models; S12. Set different physical properties according to different types of blood vessels, where the physical properties include elasticity, thickness, and blood flow rate; S13. Provide multiple blood pressure scenarios, where the blood pressure scenarios include normal blood pressure, hypertension, and hypotension, and the tension and blood flow characteristics of blood vessels are different under each blood pressure scenario; S14. Allow users to adjust the blood pressure value in real time, and the system will dynamically adjust the tension and blood flow rate of blood vessels according to the input blood pressure value.

[0024] As described in the above steps S11 - S14, the present invention uses medical image data for three - dimensional reconstruction of blood vessels, creates accurate arterial and venous models, sets different physical properties according to different types of blood vessels, where the physical properties include elasticity, thickness, and blood flow velocity, provides multiple blood pressure scenarios, the blood pressure scenarios include normal blood pressure, hypertension, and hypotension, and the tension and blood flow characteristics of blood vessels will be different under each blood pressure scenario. It allows users to adjust the blood pressure value in real - time, and the system will dynamically adjust the tension of blood vessels and blood flow velocity according to the input blood pressure value. By operating the user to dynamically adjust the blood pressure and real - time adjust the tension, elasticity, and blood flow velocity of blood vessels, it can accurately simulate the real responses of blood vessels under different blood pressures. This real - time feedback mechanism makes the simulation process closer to the real physiological process, enhances the interactivity and realism, provides multiple blood pressure scenarios such as normal blood pressure, hypertension, and hypotension, and adjusts the physical properties of the blood vessel model according to different blood pressure value changes, which can help users and medical staff better understand the changes of blood vessels and the characteristics of blood flow under different blood pressure states. Through the simulation of different blood pressure scenarios, users can intuitively observe the differences in blood vessels under hypertension, hypotension, or normal blood pressure, enhancing their understanding of vascular physiology, pathology, and hemodynamics. By operating the blood pressure in real - time and observing the blood vessel responses, users can more deeply understand the dynamic changes of vascular function. Users can adjust the blood pressure according to their own needs and observe the changes of blood vessels. This personalized learning method can help them deeply explore and understand the vascular characteristics and corresponding medical treatment methods under each blood pressure state. By adjusting the physical properties of blood vessels according to different blood pressure scenarios, the system can simulate the vascular conditions of hypertension and hypotension patients, which helps medical staff master how to make appropriate diagnosis and treatment decisions in different health states in practice. Based on this dynamic model, the simulation content can be further expanded to simulate the effects of drugs, surgeries, or treatments on blood vessel responses. For example, by adjusting the blood pressure - regulating effect of drugs or surgical interventions, observing the changes in blood flow dynamics, it provides more diverse and accurate simulation tools for medical training and clinical diagnosis. The dynamic simulation can reveal the subtle changes of blood vessels under different blood pressure states, which is of great significance for the health assessment, early disease prediction, and prevention of high - risk groups (such as hypertension patients). Simulating the effects of different blood pressures on the blood vessel wall helps medical staff detect the potential risks of vascular lesions early. According to the blood pressure and blood vessel response characteristics of patients, doctors can formulate more personalized diagnosis and treatment plans and dynamically adjust treatment strategies. By accurately simulating the blood flow state, doctors can better grasp the effects of different treatment means. With the increasing demand for the accuracy and dynamic adjustment of blood vessel models, such a system can promote technological innovation and development in the fields of medical image processing, three - dimensional modeling, blood flow simulation, etc.

[0025] In one embodiment, step S2 of simulating different vascular tensions and air pressure changes using a haptic feedback device includes: S21. Use a handheld device with haptic feedback to simulate different vascular tensions and air pressure changes; S22. When the user presses on the virtual blood vessel, the device provides corresponding resistance feedback according to the simulated vascular tension, simulating the air pressure changes during blood pressure measurement; S23. Provide corresponding haptic feedback according to the simulated air pressure value to enhance the sense of reality; S24. Simulate the working principle of a blood pressure sensor through software to monitor and feedback the blood pressure changes of the simulated patient in real time; S25. Display the blood pressure value of the simulated patient on the screen in real time and show the change trend of blood pressure through a graphical interface.

[0026] As described in the above steps S21 - S25, the present invention uses a handheld device with haptic feedback to simulate different vascular tensions and air pressure changes. When the user presses on the virtual blood vessel, the device provides corresponding resistance feedback according to the simulated vascular tension, simulates the air pressure changes during blood pressure measurement, and provides corresponding haptic feedback according to the simulated air pressure value to enhance the sense of reality. By simulating the working principle of a blood pressure sensor through software, it can monitor and feedback the blood pressure changes of the simulated patient in real time, display the blood pressure values of the simulated patient on the screen in real time, and show the change trend of blood pressure through a graphical interface. Traditional blood pressure measurement simulations often lack interactivity and dynamic changes, and can only provide static numerical values or images, unable to reflect real-time vascular responses and blood pressure changes. However, using a handheld device with haptic feedback can simulate the vascular tension and air pressure changes in real time, enhance the user's sense of immersion, enable learners to perceive the changes and responses of blood vessels during actual operation, and thus improve their understanding of the blood pressure measurement process. By simulating the working principle of a blood pressure sensor through software, the device can monitor and feedback the blood pressure changes of the simulated patient in real time. This can not only help learners intuitively understand the process of blood pressure changes, but also help them master how to make corresponding adjustments according to different health states. Using the technology of dynamically reconstructing vascular model parameters to simulate the vascular responses and blood pressure values under different health states, it can reflect the specific conditions of the patient (such as hypertension, hypotension, pulse pressure changes, etc.) according to different operations, enabling learners to understand the differences in blood pressure responses under different health states. This personalized simulation is very helpful for improving the user's ability to identify and handle different disease states. By simulating various health states, learners can not only understand the basic principle of blood pressure measurement, but also learn how to identify the blood pressure fluctuations of patients through haptic feedback in practice. This helps them measure and diagnose blood pressure more accurately in real scenarios. The dynamic and realistic simulation environment allows trainees to perform operations and exercises multiple times and obtain immediate feedback. This immediate feedback can help users identify errors in operations and make adjustments, improving their skill level. At the same time, the simulated real blood pressure change trend and graphical interface display help users understand the complex blood pressure change mechanism. Combined with haptic feedback, users not only rely on vision and hearing to obtain information, but can also perceive more detailed information in multiple dimensions through the resistance changes and pressure changes of the handheld device, thereby enhancing their sensory learning experience. This combination of multiple senses can help users better understand blood pressure measurement and vascular responses.

[0027] In one embodiment, the step S3 where the user selects the health condition of the simulated patient and starts the blood pressure measurement program, and the software simulates the blood pressure change to display different pressure points during the measurement process includes: S31. Select a virtual patient from the patient database and set its health condition and blood pressure parameters: S32. Set the minimum pressure in the artery during heart diastole and the maximum pressure in the artery during heart systole according to the health condition; S33. Start the blood pressure measurement program. The system begins to simulate the blood pressure signal and dynamically adjusts the parameters of the blood pressure signal according to the operations during the measurement process; S34. Simulate the working principle of the blood pressure sensor through software, monitor and record the blood pressure changes in real time, display the blood pressure values and waveforms on the screen in real time, and display the changes of the pressure points through a graphical interface; S35. Dynamically adjust the blood pressure parameters according to the selected simulated patient health condition. The mean arterial pressure is calculated as follows: ; where MAP is the mean arterial pressure, DP is the minimum pressure in the artery during heart diastole, and SP is the maximum pressure in the artery during heart systole; S36. The calculation formula for generating the time series of the blood pressure waveform is as follows: ; where DP is the minimum pressure in the artery during heart diastole, PP is the pulse pressure, t is the time, T is the cardiac cycle, ψ is the phase angle, and P(t) is the blood pressure at time t.

[0028] S37. The calculation formula for generating the time series of the complex blood pressure waveform is as follows: ; where A n and B n are Fourier coefficients, N is the number of terms of the series, and n is the current series.

[0029] As described in the above steps S31 - S37, the present invention selects a virtual patient from the patient database, sets its health status and blood pressure parameters, sets the minimum pressure in the artery during diastole and the maximum pressure in the artery during systole according to the health status, starts the blood pressure measurement program, the system begins to simulate the blood pressure signal, dynamically adjusts the parameters of the blood pressure signal according to the operations during the measurement process, simulates the working principle of the blood pressure sensor through software, monitors and records the blood pressure changes in real time, displays the blood pressure values and waveforms on the screen in real time, and displays the changes of the pressure points through a graphical interface, dynamically adjusts the blood pressure parameters according to the selected health status of the simulated patient, calculates the mean arterial pressure, generates the time series of the blood pressure waveform and calculates the time series generation of the complex blood pressure waveform, can adjust the parameters of the blood pressure signal in real time according to the operations, simulate the blood pressure changes during cardiac diastole and systole, and reflect the real blood pressure waveform. This dynamic adjustment mechanism can help learners understand the process of blood pressure changes and the differences in blood pressure waveforms under different health states. By the user's selection of the health status and blood pressure parameters of the virtual patient, the system can dynamically adjust the blood vessel model parameters to make the blood vessel response more close to the actual situation. Learners can understand the influence of different health states on blood pressure waveforms and blood vessel behaviors through interactive operations. After selecting a virtual patient and setting its health status, the system automatically generates blood pressure parameters that conform to this health status, so as to simulate the blood pressure changes under different health states such as hypertension, hypotension, and normal blood pressure, and help learners better understand and identify the characteristics of different blood pressure waveforms. By simulating the working principle of the blood pressure sensor through software, it can accurately generate and display the time series of complex blood pressure waveforms, helping users or doctors understand and analyze different blood pressure dynamic situations. The system can monitor the blood pressure changes in real time, display the blood pressure values and waveforms on the screen at the same time, and provide real-time feedback. Learners can see the impact of each operation on the blood pressure waveform and values, enhancing their understanding of the blood pressure measurement process. Through the graphical interface, users can clearly see the changes of the pressure points and blood pressure waveforms, improving learners' understanding and identification ability of blood pressure waveforms and their changes. It can dynamically calculate and display the mean arterial pressure (MAP), generate the time series of the blood pressure waveform and calculate the complex waveform, which provides users with an in-depth analysis of blood pressure dynamic changes and helps them understand the impact of different blood pressure conditions on the circulatory system. By simulating the working principle of the blood pressure sensor, learners can not only observe the numerical changes of blood pressure, but also understand how the blood pressure sensor generates waveforms through pressure sensing, enhancing the mastery of the measurement device and hemodynamic principles. The trainees can perform interactive blood pressure measurements through the health status of the virtual patient and adjust the measurement parameters in real time during the actual operation, providing a higher teaching experience and operation accuracy.Simulate blood pressure changes under different health conditions, allowing users to experience how to handle various blood pressure situations in actual clinical practice. By calculating the mean arterial pressure and the time series of blood pressure waveforms, the simulated blood pressure changes are more accurate and dynamic, and can better present the trend of blood pressure changes, helping learners master more detailed and accurate blood pressure measurement techniques. It is not only applicable to medical simulation teaching, but also helps trainees prepare for future clinical practice. By repeatedly operating virtual patients under different health conditions, trainees can become familiar in advance with how to handle various blood pressure abnormalities, laying a foundation for diagnosis and treatment decisions in real clinical scenarios.

[0030] In one embodiment, the system simulates errors that occur during the measurement process, and the step S4 of reminding the user to make adjustments through tactile feedback and visual feedback includes: S41. Detect that the cuff pressure exceeds the preset maximum pressure value or detect that the cuff pressure does not reach a sufficient height to block blood flow; S42. Simulate the feeling of excessive pressure and the feeling of a loose cuff through a tactile feedback device; S43. Display the pressure value on the interface, and remind the user through color changes. The virtual expert prompts that if the pressure is too high, please appropriately reduce the pressure; if the pressure is insufficient, please increase the pressure; S44. Display a schematic diagram of the correct cuff wrapping position on the interface, and prompt that if the cuff position is too low, please adjust it upward; if the cuff position is too high, please adjust it downward; S45. The inflation and deflation speeds are incorrect. Too fast inflation causes discomfort to the patient and affects the measurement accuracy. Too slow or too fast deflation affects the capture of Korotkoff sounds; S46. Detect whether the inflation time is within a reasonable range, detect whether the deflation speed meets the standard, simulate the speed feeling of inflation and deflation through a tactile device, display the speed curves of inflation and deflation and compare them with the standard curves.

[0031] As described in the above steps S41 - S46, the present invention detects that the cuff pressure exceeds the preset maximum pressure value or detects that the cuff pressure does not reach a sufficient height to block blood flow. Through the tactile feedback device, it simulates the feeling of excessive pressure and the feeling of the cuff being too loose, displays the pressure value on the interface, and reminds the user through color changes. The virtual expert prompts that the pressure is too high and asks to appropriately reduce the pressure, and the pressure is insufficient and asks to increase the pressure. It displays a schematic diagram of the correct cuff wrapping position on the interface, and prompts that if the cuff position is too low, adjust it upward, and if the cuff position is too high, adjust it downward. The inflation and deflation speeds are incorrect. Too fast inflation causes discomfort to the patient and affects the measurement accuracy. Too slow or too fast deflation affects the capture of Korotkoff sounds. It detects whether the inflation time is within a reasonable range and whether the deflation speed meets the standard. Through the tactile device, it simulates the speed feeling of inflation and deflation, displays the inflation and deflation speed curves and compares them with the standard curves. Through the tactile feedback of simulating excessive or too loose cuff pressure, the user can intuitively feel the errors in the operation process and thus adjust the operation behavior in a timely manner. This interaction method based on tactile feedback helps the user to more deeply understand the technical requirements and operation skills of blood pressure measurement, improve the proficiency of actual operation, dynamically adjust the parameters of the blood vessel model, and simulate the blood pressure and blood vessel responses under different health states, which can provide a more realistic clinical experience for the user. For example, by simulating the change of cuff pressure during blood pressure measurement, it can reflect the physiological responses of real patients under different blood pressure states, thereby enhancing the authenticity of the simulation process. This interactive feedback can help the user understand how to adjust the measurement method according to the physiological states of different patients. Through the prompts of the virtual expert and the real - time interface display, the user can obtain immediate feedback on the operation. For example, the virtual expert reminds "the pressure is too high, please appropriately reduce the pressure" or "the pressure is insufficient, please increase the pressure". This intelligent error - correction mechanism can effectively help the user avoid common operation mistakes and improve the learning efficiency. At the same time, the real - time feedback of the cuff position and inflation / deflation speed can help the user better master the measurement skills and avoid operation errors that affect the measurement results. The inflation and deflation speeds are crucial for the measurement results. Incorrect inflation or deflation speeds may cause discomfort to the patient or affect the accurate capture of Korotkoff sounds. By simulating the inflation and deflation speeds and comparing them with the standard curves, it can help the user understand how to ensure the reasonable speeds of inflation and deflation in actual operation, thereby improving the accuracy and reliability of blood pressure measurement. By detecting the accuracy of the user's operation, the system can provide personalized feedback and guidance according to the user's performance. For example, the system will prompt the user where there are deviations and adjust the teaching strategy as needed to specifically improve the user's weak links. Different health states may affect the reactivity of blood vessels. Simulating the dynamic changes of blood pressure and blood vessel responses can let the user understand how to perform correct blood pressure measurement under different physiological conditions. For example, under hypertension, hypotension or healthy states, the blood vessel responses to cuff pressure are different. Dynamic simulation can let the user exercise operation skills in different situations.To improve its clinical adaptability, the pressure value, inflation and deflation speed curves, standard comparison, etc. displayed in real time on the interface can help users self-evaluate the accuracy of their operations and make improvements based on the feedback. Through such a continuous feedback mechanism, users can gradually improve their operation skills and establish a more accurate self-evaluation ability.

[0032] In one embodiment, the system simulates the errors that occur during the measurement process, and step S4 of reminding the user to make adjustments through tactile feedback and visual feedback further includes: S47. Provide guidance and suggestions in real time according to the user's operation, and identify the error type in the user's operation through an algorithm; S48. Generate corresponding voice and text feedback information according to the error type, provide specific operation suggestions to help the user improve the operation; S49. Provide targeted suggestions according to different types of errors, provide the correct operation steps, and guide the user to make corrections; S410. Simulate the change of the cuff pressure, including the inflation process, and calculate as follows: ; where P(m) is the cuff pressure, P0 is the initial pressure, k c is the inflation rate, and m is the time; S411. The deflation process, and calculate as follows: ; where P(m) is the cuff pressure, P max is the maximum pressure when fully inflated, k d is the deflation rate, and m is the time.

[0033] As described in the above steps S47 - S411, the present invention provides guidance and suggestions in real time according to the user's operations. It identifies the types of errors in the user's operations through algorithms, generates corresponding voice and text feedback information according to the types of errors, provides specific operation suggestions to help the user improve the operations, provides targeted suggestions according to different types of errors, provides the correct operation steps to guide the user to make corrections, simulates the changes in cuff pressure, including the inflation process and the deflation process. By providing guidance and suggestions in real time according to the user's operations, the user can obtain timely feedback during the operation process, which helps them avoid errors and deepen their understanding. This instant feedback can not only improve the user's operation skills but also enhance their mastery of knowledge, thereby improving the learning effect. The algorithm can identify the types of errors in the user's operations and provide targeted feedback according to different errors. The types of errors of each user may be different, and personalized suggestions can better solve the user's problems, thus reducing the confusion and repetitive errors in the learning process and quickly improving the operation level. By simulating the changes in cuff pressure (including the inflation process and the deflation process) and adjusting the blood vessel model parameters in real time according to the user's operations, the simulation environment can be made closer to the real medical scenario. In this way, the user can not only feel the real-time response of blood vessels and blood pressure but also better understand the impact of blood pressure changes on the health status. The blood vessel responses of patients in different health states (such as patients with hypertension or hypotension) are different. By reconstructing the blood vessel model parameters in real time, the differences in blood vessel responses in healthy and diseased states can be simulated, which helps the user better understand the impact of diseases on blood pressure and blood vessels and improves the diagnostic and operation capabilities. The user can perform different operations in the simulation environment and see instant feedback, which not only helps improve their operation skills but also promotes them to make better decisions when facing actual clinical scenarios. Through repeated practice, the user can accumulate experience in the simulation environment and thus improve their actual clinical ability. Compared with traditional teaching methods, this dynamic simulation provides more opportunities for interaction and autonomous learning. The user can continuously interact with the simulation environment, adjust their operations and observe the changes. This process will greatly enhance the user's motivation for active learning and improve their learning interest and enthusiasm.

[0034] As Figure 2 shown, the present application also provides a diagnostic evaluation system for simulation teaching, including: A user interface module that provides a graphical user interface to enable users and teachers to conveniently operate and manage the simulation system, including user authentication, provides the main operation interface of the system, including selecting medical records, starting the simulation, viewing historical records, and provides detailed usage instructions and operation steps; A virtual patient module that generates and manages the physiological data of virtual patients, including blood pressure and heart rate, stores the data of virtual patients in different health conditions, allows users to select different virtual patients, set their physiological states, and adjust the physiological parameters of virtual patients in real time; A vascular structure module that creates and manages virtual vascular structures, simulates different types of blood vessels and their physical properties, reconstructs the three-dimensional model of blood vessels using medical image data, defines the physical properties of different blood vessels, and dynamically adjusts the tension and blood flow characteristics of blood vessels according to blood pressure changes; A blood pressure measurement simulation module that simulates various operations and device responses during blood pressure measurement, such as virtual sphygmomanometers, cuffs and other measurement devices, and simulates the complete operation process of blood pressure measurement, including cuff winding, inflation, deflation, and real-time monitoring and recording of blood pressure changes during the measurement process; A tactile feedback module that simulates the changes in tactile sensation during blood pressure measurement through a tactile feedback device, connects the tactile feedback device, and simulates different vascular tensions and air pressure changes according to the state of the virtual patient and the operation steps, and reminds the user of errors during the operation through tactile feedback; A real-time monitoring and feedback module that monitors the user's operations in real time and provides feedback, simulates the working principle of a blood pressure sensor, monitors blood pressure changes in real time, displays the blood pressure value and change trend on the screen in real time, detects errors in the operation, and informs the user of the error cause and improvement method through visual, tactile and voice feedback.

[0035] In one embodiment, the real-time monitoring and feedback module includes providing real-time guidance and suggestions from a virtual expert, providing real-time feedback to the user's operations through voice or text, informing the user of the error cause and improvement method, providing specific operation suggestions according to the user's operation situation, providing operation videos and animations to help the user understand the correct operation steps, recording the user's operation history and evaluating it, recording the process and results of each simulation operation, generating an evaluation report, including operation accuracy, time, number of errors, tracking the user's learning progress, providing personalized learning suggestions, managing the settings and maintenance of the system, managing user information, including adding, deleting, modifying user information, setting the roles and permissions of different users, and providing system update and troubleshooting functions.

[0036] It should be noted that each module and unit in the simulation teaching diagnosis and evaluation system corresponds one by one to the steps in the simulation teaching diagnosis and evaluation method.

[0037] As Figure 3 shown, the present application also provides a computer device, which can be a server, and its internal structure can be as Figure 3As shown in the figure. The computer device includes a processor, a memory, a network interface, and a database connected via a system bus. Among them, the processor of the computer design is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store all the data required for the process of the diagnostic evaluation method for simulation teaching. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, it realizes the diagnostic evaluation method for simulation teaching.

[0038] Those skilled in the art can understand that Figure 3 the structure shown in the figure is only a block diagram of some structures related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.

[0039] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it realizes any one of the above diagnostic evaluation methods for simulation teaching.

[0040] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium provided in the present application and used in the embodiments can include non-volatile and / or volatile memories. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or an external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0041] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, apparatus, article or method comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, apparatus, article or method. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the existence of additional identical elements in the process, apparatus, article or method comprising such element.

[0042] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A diagnostic assessment method for simulation teaching, characterized in that, including: Create a virtual vascular structure in the teaching software to simulate the arteries and veins of the human body, and set different simulated blood pressure scenarios to help users learn how to operate and diagnose under various blood pressure conditions; Use a haptic feedback device to simulate different vascular tensions and air pressure changes, construct a virtual patient model by monitoring and feedbacking the simulated patient's blood pressure changes in real time, control the blood pressure value through the software, and give real-time simulation results; The user selects the health condition of the simulated patient and starts the blood pressure measurement program. During the measurement process, the software simulates blood pressure changes through sensors to display different pressure points; The system simulates errors that occur during the measurement process, reminds the user to make adjustments through haptic and visual feedback, provides virtual expert guidance, and informs the user of improved operations through voice and text feedback.

2. The diagnostic evaluation method for simulation teaching according to claim 1, wherein The steps of creating a virtual vascular structure in the teaching software include: Use medical imaging data for 3D reconstruction of blood vessels to create accurate arterial and venous models; Set different physical properties according to different types of blood vessels, where the physical properties include elasticity, thickness, and blood flow rate; Provide multiple blood pressure scenarios, where the blood pressure scenarios include normal blood pressure, hypertension, and hypotension, and the vascular tension and blood flow characteristics will be different under each blood pressure scenario; Allow the user to adjust the blood pressure value in real time, and the system will dynamically adjust the vascular tension and blood flow rate according to the input blood pressure value.

3. The diagnostic assessment method for simulation teaching according to claim 1, wherein The steps of using a haptic feedback device to simulate different vascular tensions and air pressure changes include: Use a handheld device with haptic feedback to simulate different vascular tensions and air pressure changes; When the user presses the virtual blood vessel, the device provides corresponding resistance feedback according to the simulated vascular tension to simulate the air pressure change during the blood pressure measurement process; Provide corresponding haptic feedback according to the simulated air pressure value to enhance the realism; Simulate the working principle of a blood pressure sensor through software to monitor and feedback the simulated patient's blood pressure changes in real time; Display the blood pressure value of the simulated patient on the screen in real time, and display the change trend of blood pressure through a graphical interface.

4. The diagnostic evaluation method for simulation teaching according to claim 1, wherein The steps of the user selecting the health condition of the simulated patient and starting the blood pressure measurement program, and the software simulating blood pressure changes through sensors to display different pressure points during the measurement process include: Select a virtual patient from the patient database and set its health condition and blood pressure parameters: According to the health condition, set the lowest pressure in the artery during heart diastole and the highest pressure in the artery during heart systole; Start the blood pressure measurement program, the system begins to simulate blood pressure signals, and dynamically adjusts the parameters of the blood pressure signals according to the operations during the measurement process; Simulate the working principle of a blood pressure sensor through software to monitor and record blood pressure changes in real time, display the blood pressure value and waveform on the screen in real time, and display the change of pressure points through a graphical interface; Dynamically adjust the blood pressure parameters according to the selected health condition of the simulated patient. The calculation formula for generating the time series of the blood pressure waveform is as follows: ； where DP is the lowest pressure in the artery during heart diastole, PP is the pulse pressure, t is the time, T is the cardiac cycle, ψ is the phase angle, and P(t) is the blood pressure at time t.

5. The diagnostic assessment method for simulation teaching according to claim 1, wherein The system simulates errors that occur during the measurement process and reminds the user to make adjustments through tactile feedback and visual feedback, including: Detecting that the cuff pressure exceeds the preset maximum pressure value or detecting that the cuff pressure does not reach a sufficient height to block blood flow; Simulating the feeling of excessive pressure and the feeling of a loose cuff through a tactile feedback device; Displaying the pressure value on the interface and reminding the user through color changes. The virtual expert prompts that if the pressure is too high, please appropriately reduce the pressure, and if the pressure is insufficient, please increase the pressure; Displaying a schematic diagram of the correct cuff wrapping position on the interface and prompting that if the cuff position is too low, please adjust it upward, and if the cuff position is too high, please adjust it downward; The inflation and deflation speeds are incorrect. Too fast inflation causes discomfort to the patient and affects the measurement accuracy. Too slow or too fast deflation affects the capture of Korotkoff sounds; Detecting whether the inflation time is within a reasonable range and detecting whether the deflation speed meets the standard. Simulating the speed sensation of inflation and deflation through a tactile device, displaying the inflation and deflation speed curves and comparing them with the standard curves.

6. The diagnostic assessment method for simulation teaching according to claim 5, wherein, The steps for the system to simulate errors that occur during the measurement process and remind the user to make adjustments through tactile feedback and visual feedback further include: Providing guidance and suggestions in real time according to the user's operations, and identifying the type of error in the user's operations through an algorithm; Generating corresponding voice and text feedback information according to the type of error, providing specific operation suggestions to help the user improve the operation; Providing targeted suggestions according to different types of errors, providing the correct operation steps, and guiding the user to make corrections; Simulating the change of cuff pressure, including the inflation process and the deflation process.

7. A diagnostic assessment system for simulation teaching, characterized in that, Including: A user interface module that provides a graphical user interface to enable users and teachers to conveniently operate and manage the simulation system, including user authentication, providing the main operation interface of the system, including selecting medical records, starting the simulation, viewing historical records, and providing detailed usage instructions and operation steps; A virtual patient module that generates and manages the physiological data of virtual patients, including blood pressure and heart rate, stores the data of virtual patients in different health conditions, allows users to select different virtual patients, set their physiological states, and adjust the physiological parameters of virtual patients in real time; A vascular structure module that creates and manages virtual vascular structures, simulates different types of blood vessels and their physical properties, reconstructs the three-dimensional model of blood vessels using medical imaging data, defines the physical properties of different blood vessels, and dynamically adjusts the tension and blood flow characteristics of blood vessels according to blood pressure changes; A blood pressure measurement simulation module that simulates various operations and device responses during the blood pressure measurement process, virtual blood pressure monitors, cuffs and other measurement devices, simulates the complete operation process of blood pressure measurement, including cuff wrapping, inflation, and deflation, and real-time monitors and records the blood pressure changes during the measurement process; A tactile feedback module that simulates the hand feeling changes during blood pressure measurement through a tactile feedback device, connects the tactile feedback device, and simulates different vascular tensions and air pressure changes according to the state of the virtual patient and the operation steps, and reminds the user of errors in the operation through tactile feedback; The real-time monitoring and feedback module monitors the user's operations in real time and provides feedback, simulates the working principle of a blood pressure sensor, monitors blood pressure changes in real time, displays blood pressure values and change trends on the screen in real time, detects errors in operations, and informs the user of the error reasons and improvement methods through visual, tactile, and voice feedback.

8. The diagnostic assessment system for simulation teaching according to claim 7, wherein The real-time monitoring and feedback module includes providing real-time guidance and suggestions from a virtual expert, providing real-time feedback on the user's operations through voice or text, informing the user of the error reasons and improvement methods, providing specific operation suggestions according to the user's operation situation, providing operation videos and animations to help the user understand the correct operation steps, recording the user's operation history and conducting evaluations, recording the process and results of each simulated operation, generating evaluation reports including operation accuracy, time, and number of errors, tracking the user's learning progress, providing personalized learning suggestions, managing system settings and maintenance, managing user information including adding, deleting, and modifying user information, setting roles and permissions for different users, and providing system update and troubleshooting functions.

9. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method described in any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method described in any one of claims 1 to 6.

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