5384results about "Educational models" patented technology

The invention discloses a whole-process vascular interventional operation training method and system based on a virtual reality technology, and the method comprises the steps: firstly, developing a vascular interventional mechanics and collision simulation module, and achieving the deformation simulation of a blood vessel and a guide wire through the combination of position dynamics, a region shape matching technology and a Cosseerat elastic rod model, the collision between the blood vessel and the guide wire is treated by adopting a wide-to-narrow three-layer progressive collision detection method; secondly, constructing an immersive virtual operation scene through model construction and rendering optimization; visual angle roaming, instrument operation and interface interaction are fused, and multi-mode interaction control driving intervention training is achieved; finally, based on a'module-event 'dual-drive framework, operation tasks such as anesthesia, puncture, radiography, intervention, stent release and hemostasis are sequentially connected in series through a unified state machine, and whole-process training is achieved. The accuracy and stability of blood vessel and guide wire simulation are improved, the training immersion sense is enhanced, interventional operation whole-process training is achieved, and high teaching and practical value is achieved.

The invention relates to the technical field of medical simulation training, in particular to an ultrasonic operation intelligent training method and device based on multiple modalities, and the method comprises the steps: obtaining real-time six-degree-of-freedom pose data of an ultrasonic probe held by an operator, and generating an ultrasonic image in real time through a first deep learning model in cooperation with scene parameters; wherein the first deep learning model is trained to learn and establish a continuous mapping relation from an ultrasonic probe pose space to an ultrasonic image space; performing section classification on the ultrasound image by using a second deep learning model, and determining deviation information for a non-standard section; and based on the real-time six-degree-of-freedom pose data and a division result of a preset standard section and an ultrasonic probe pose, generating visual guide information for guiding an operator to adjust the probe pose, and displaying the visual guide information. In this way, the problems that an existing virtual training image is discontinuous and guiding is inaccurate are solved, and meanwhile the training efficiency and the reality sense of ultrasonic operation are remarkably improved.

The present disclosure relates to a display system (1, 1′) for hydrothermal sanitary components (10a-10d), comprising:at least a first device or module (1), comprising an exhibition panel (2) configured to lay, in use, at least partially on a plane substantially inclined with respect to a horizontal plane and destined and configured to support a plurality of hydrothermal sanitary components (10a-10d); andat least a retainer (2f, 4, 10p, 11) configured to realize a removable connection between the exhibition panel (2) and the hydrothermal sanitary components (10a-10d), the retainer (2f, 4, 10p, 11) being further destined and configured to allow a user to arrange, and repeatedly re-arrange multiple times, the hydrothermal sanitary components (10a-10d) on the exhibition panel (2) according to a plurality of user-defined and re-definable patterns or spatial configurations, simulating a real installation of said hydrothermal sanitary components (10a-10d) in an operating environment, such as a bathroom or similar.

The subject matter described in this disclosure can be embodied in methods, systems, and program products for receiving user input that selects an arrangement of surgical instrument trays for use during a surgical procedure. A display device presents a graphical representation of the selected arrangement of surgical instrument trays. A computing system receives image data depicting multiple actual surgical instrument trays; and analyzes the image data to determine an extent to which the multiple actual surgical instrument trays and actual surgical instruments located on the trays match the selected arrangement of surgical instrument trays. The display device presents a graphical indication of the extent to which the multiple actual surgical instrument trays match the selected arrangement of surgical instrument trays.

The invention provides a power equipment three-dimensional dynamic updating method and system for virtual reality training, and the method comprises the steps: collecting the working state data of power equipment in real time through a sensor; processing the working state data based on a preset function model, and calculating the physical state change of the power equipment; according to the physical state change, adjusting physical attributes of the three-dimensional model of the power equipment in real time so as to simulate physical effects of thermal expansion, stress concentration or structural deformation; loading the adjusted three-dimensional model into a virtual reality environment, and performing real-time display through a virtual reality rendering platform; and after the user executes the interactive operation through the virtual reality equipment, the working state of the power equipment is updated, and the influence of the operation on the three-dimensional model of the equipment is dynamically fed back, so that a virtual-real linkage closed-loop training process is formed. The virtual model can change in real time along with the collected data, and the technical verisimilitude and operability of virtual training are remarkably improved.

The invention relates to the technical field of gastrointestinal tracts, in particular to a gastrointestinal tract ultrasonic virtual simulation nursing teaching platform which comprises a function module and a hardware configuration module. The function module comprises an anatomy learning module, an ultrasonic simulation module, a case training module and an examination and evaluation module; the hardware configuration comprises a VR head-mounted display, an ultrasonic simulator and an operation panel. The system has the advantages of safe and risk-free training, standardized process learning, immersive scene experience and instant feedback evaluation, a high-fidelity gastrointestinal tract ultrasonic virtual simulation teaching platform for critically ill patients is constructed, a 3D virtual model is constructed by using a virtual simulation technology, knowledge is presented dynamically and visually, real situations such as ICU wards and the like are simulated through VR, and real-time feedback evaluation of the gastrointestinal tracts of the critically ill patients is realized. The learning initiative and the sense of participation are stimulated; an ICU environment is virtualized, an unlimited'trial-and-error 'practice space is provided, the equipment cost is reduced, potential safety hazards are avoided, and space-time and safety barriers are broken.

The invention discloses a large-scale immersed tube tunnel silt squeezing simulation device and method, the large-scale immersed tube tunnel silt squeezing simulation device comprises a large-scale immersed tube model, a truss structure, a gear rack structure, two supports and a model groove, the truss structure is fixed on the top of the large-scale immersed tube model, and a balancing weight is placed on the truss structure; two sealing rubber strips are respectively arranged on the periphery of the large-scale immersed tube model; in the process of lowering the large-scale immersed tube model in the model tank, one end of the large-scale immersed tube model rubs with the side wall of the model tank to form a closed end, the other end of the large-scale immersed tube model forms a sludge discharge end, and an ultrasonic flow meter is arranged at the sludge discharge end; a stay wire displacement sensor is fixed on each bracket, two fixed ends are arranged at the top of the large-scale immersed tube model, and a fixed head of each stay wire displacement sensor is fixed on one fixed end; a gravel layer, a back-silting float sludge layer and a seawater layer are sequentially arranged in the model groove from bottom to top, and a sea groove slope model is arranged in the model groove.

The invention provides experimental equipment and method for simulating filling and sealing of carbon dioxide in a goaf, and the experimental equipment comprises a simulation system, a slurry injection system, a gas injection system, a data acquisition and processing module, a recording, analyzing and displaying module and a data acquisition system. A simulated overlying strata of the simulation system naturally collapses to form a porous medium space model, slurry and carbon dioxide are injected into the porous medium space model through the slurry injection system and the gas injection system, and data acquisition is conducted on the curing process of the carbon dioxide through the data acquisition system; and the data is transmitted to the recording, analyzing and displaying module through the data collecting and processing module. According to the invention, the influence of carbon dioxide on the slurry solidification behavior and the solidification reaction penetration depth can be comprehensively researched, and a scientific basis is provided for optimizing material selection, proportion design and injection process parameters in practical engineering.

The invention relates to the technical field of medical teaching molds, in particular to a cervical cancer staging model demonstration teaching aid, and aims to overcome the defects that in the prior art, the demonstration effect is single, the demonstration effect is poor, a model cannot be protected when the device is not used, the model is prone to being damaged, and follow-up use is affected. The device comprises a box body; the handle is fixedly connected to the top of the box body; the number of the upper fixing plates is two, and the two upper fixing plates are fixedly connected to the two sides of the outer portion of the box body correspondingly; the number of the lower fixing plates is two, and the two lower fixing plates are fixedly connected to the two sides of the outer portion of the box body correspondingly; the mounting plate is connected to the interior of the box body in a sliding manner; the second connecting column is fixedly connected to the top of the mounting plate; according to the application, through different model display, the demonstration effect is improved, and after use, the model can be protected to facilitate next use.

A lumen organ model and an endoscope training system are provided. A luminal organ model (3) is provided with: a model body (11) comprising a hollow lumen body having a lumen surface that simulates at least the lumen of a luminal organ such as the stomach, the large intestine, the bladder, the paranasal sinus, or the uterus; a light source device (13) that emits light in a light-emitting region disposed at at least one predetermined observation site corresponding to a training purpose on the lumen surface of a model body (11) comprising a lumen; and a processor (27) that selectively switches light-emitting regions that emit light by controlling the light source device (13).

The invention discloses an experimental device and method for controlling migration and mineralization of ore-forming fluid in a wrinkle deformation process, and belongs to the technical field of ore deposit geology. The device comprises an ore liquid synthesis unit and a mechanical deformation simulation and mineralization analysis unit. The mechanical deformation simulation unit comprises a box body, an extrusion deformation system, a liquid injection system and a heating temperature control system, and can synchronously realize visual analysis of structure extrusion, fluid injection and mineralization precipitation at high temperature. The experimental method comprises the following steps: firstly, preparing a simulated metallogenic fluid containing FeS2 (pyrite); laying simulated surrounding rock and wrinkles in the box body, arranging a separation layer, and heating; extruding the sand layer and injecting fluid to simulate a mineralization process; and slicing, sampling and analyzing after model consolidation, and establishing a mineralization space distribution model. The device is simple in structure and convenient to operate, the whole process of fold extrusion, crack extension, fluid migration and mineral precipitation can be repeatedly represented, and an experimental basis is provided for hydrothermal deposit mineralization mechanism research and prospecting prediction.

The invention provides a digital twinborn medical education training method and system. The method comprises the following steps: generating case information and scoring rules of AI digital patients based on clinical real cases; constructing a physical training environment which comprises a training model, an environment construction object and an operation sensing device; creating a digital training environment mapped with the physical training environment in real time, wherein the digital training environment comprises an AI digital dummy and an interactive operation process; responding to operation input of the trainee in the physical training environment or the digital training environment; through a server synchronization engine, real-time bidirectional interaction between entity operation of the physical training environment and virtual operation of the digital training environment is realized; and dynamically collecting cross-environment operation data, and generating a clinical ability evaluation report based on case information and scoring rules. The method has the beneficial effects that a medical education evaluation-diagnosis-treatment full operation chain is deeply fused, the clinical practice ability is remarkably improved, and medical risks are effectively prevented and controlled.

The invention discloses a multifunctional hydraulic system experiment table, which relates to the technical field of hydraulic system experiment tables and comprises a time base line synchronous control module, a phase lock correction stability control module, a false peak identification and correction module, a multi-dimensional fault-tolerant judgment control module and a reverse energy slow-release anti-reverse module. And the time base line synchronous control module is used for establishing a cross-sensor unified time base line control structure, generating a synchronous reference surface by using a high-stability crystal oscillator signal, and executing nanosecond phase calibration on sampling signals of the pressure sensor and the flow sensor by taking the synchronous reference surface as a unified time reference. According to the invention, high-precision synchronous acquisition of pressure and flow signals is realized through unified time base line and phase locking correction, and high-pressure transient test data is ensured to be real and stable; and meanwhile, control logic is reconstructed, and an energy slow release strategy is introduced, so that the pressure relief process is stable and controllable, pump reverse rotation and structural impact are avoided, and the safety, reliability and self-healing stability of the experiment table are remarkably improved.

The present disclosure relates to surgical systems, devices and methods for planning and performing surgical procedures, including bone fracture repair. The systems and methods disclosed herein can be utilized to establish physical models of anatomical structures.

The invention relates to the technical field of hemodialysis teaching systems, and discloses a hemodialysis teaching system based on AI intelligent pushing. The system comprises an operation feature extraction module, an instrument positioning analysis module, an operation step analysis module and a teaching strategy generation module. Operating a feature extraction module to obtain a hemodialysis teaching video stream, and extracting multi-modal features containing an instrument movement track sequence and physiological parameter simulation data; an instrument positioning analysis module calls a pre-training network for positioning and generates a coordinate data set containing instrument types and three-dimensional position coding mapping; the operation step analysis module analyzes the time sequence characteristics by means of an action segmentation model, and generates a result containing step integrity and an error operation mark; and the teaching strategy generation module inputs a result into the intelligent push model, plans a personalized teaching path, outputs a knowledge point sequence containing a student ability model and dynamic teaching elements of operation difficulty parameters, and assists the hemodialysis teaching to be precise and personalized.

A training system for an endoscopic procedure, the training system including an endoscope having an image sensor configured to generate images; an image processing device including a housing and a processing circuit in the housing, the processing circuit including a processor and memory, the memory having graphical user interface (GUI) logic and a trained single-pass neural network model, the processor being configured to process the neural network model and the GUI logic to present a GUI; and a physical model including cavities corresponding to interconnected human cavities. The GUI is configured to receive a user input corresponding to a training mode or an exam mode. In the training mode the GUI is configured to present navigation feedback, and in the exam mode the GUI is configured to not present navigation feedback.

The invention relates to the technical field of VR teaching, in particular to a remote VR clinical medicine teaching system. The system comprises a first device, a second device and a server, the first equipment is used for enabling the student to enter the virtual medical teaching scene through the virtual reality equipment; the second equipment is used for the teacher to control the content and progress of the virtual medical teaching scene; the server is used for storing data of a virtual medical teaching scene and interaction information of students and teachers and communicating with the first equipment and the second equipment; the server further comprises a multi-modal data fusion module used for integrating various data types from the first device, including physiological data, voice data and video data, so as to generate a comprehensive student learning state report; the distributed edge computing node network is used for carrying out data preprocessing and preliminary analysis on edge nodes close to the first equipment; and the dynamic anatomical model generator is used for generating an interactive dynamic human anatomical model in real time according to teaching requirements.

The invention belongs to the related technical field of waterlogging simulation, and particularly relates to an urban waterlogging simulation device and method based on a digital twin system, and the device comprises the digital twin system, a physical sand table, a sensor, and a microcontroller. The twin system is connected with the physical sand table through a microcontroller and sensors arranged on the physical sand table, and is used for simulating the underground pipe network and surface ponding conditions of the urban target area under the rainfall condition, and regulating and controlling the physical sand table through the microcontroller to realize dynamic verification of the urban inland inundation process; the sensor is used for collecting underground pipe network and surface water accumulation condition data in the physical sand table in real time and transmitting the data back to the twin system, bidirectional interaction and synchronous display of the virtual environment and the physical sand table are achieved, and dynamic simulation and verification of the urban inland inundation process are achieved on the whole. Wherein the twinborn model is composed of a pipe network model, a road model and a building model. According to the invention, real-time mapping and interaction of the physical experiment and the virtual model of the urban drainage system can be realized.

A system and method for training, assessing, and providing feedback on cardiopulmonary resuscitation (CPR) performance based on at least one video of a CPR training session performed by a trainee on a non-mannequin training object. A preprocessing module is configured to process the at least one video to generate a standardized video. A marking module is configured to use pose estimation to mark points for body movements during the CPR training session based on the standardized video, and a computing module configured to compute body movement parameters for CPR based on the marked points. A classification module implements a machine learning model that classifies CPR compressions on the non-mannequin training object based on the computed body movement parameters, thereby generating compression classifications, wherein the machine learning model is trained to extract CPR-specific features. An editor module maps metrics over the standardized video based on the compression classifications and generates a feedback video based on the mapped metrics. An analysis module identifies deviations from CPR guidelines based on the feedback video and generates analysis results based on the deviations. A feedback module provides performance feedback to the trainee based on the analysis results.

The invention relates to the technical field of medical training equipment, in particular to a critical care ultrasonic image training system, which comprises a clinical data acquisition module for acquiring critical clinical case data, ultrasonic image materials and diagnosis and treatment process specifications; the training scene construction module is used for constructing a high-fidelity three-dimensional training scene according to severe clinical case data, ultrasonic image materials and diagnosis and treatment process specifications; the virtual ultrasonic practical operation module simulates the operation of an ultrasonic probe based on a high-fidelity three-dimensional training scene, and generates an ultrasonic image corresponding to an anatomical part in real time; the intelligent skill assessment center assesses operation normalization and diagnosis accuracy through practical operation data and real-time generation of an ultrasonic image corresponding to an anatomical site in combination with an improved ResNet-LSTM model, and an assessment result is obtained; and the personalized teaching unit generates a customized training scheme and knowledge strengthening content according to the evaluation result in combination with the learning track of the student. Therefore, the problems of insufficient dynamic scene simulation, poor authenticity and the like in the prior art are solved.

The invention discloses a power grid dispatching training method and system based on panoramic digital twinborn simulation, and relates to the technical field of power grid dispatching training, and the method comprises the steps: integrating a power grid topological structure, equipment operation data and historical fault data, constructing a three-level dynamic simulation model of an equipment level, a station level and a region level, and carrying out the simulation of the three levels based on the obtained real-time operation data. After dimensionality reduction and anomaly detection processing are conducted on the data, parameters and states of a three-level dynamic simulation model are updated, simulation is driven through the updated model, power flow analysis, load prediction and stability evaluation are combined, disaster scenes are generated, cognitive process data are collected, quantitative analysis is conducted in combination with preset evaluation indexes, and personalized training feedback is generated. The power grid operation state is highly restored, the data accuracy is improved, the training content is enriched, the training effect is enhanced, the ability of dispatchers to deal with complex conditions is improved, the regional limitation is broken, and the training efficiency and the resource utilization rate are improved.

A multi-axial spine testing system includes a physiological motion unit (PMU); a uni-axial test frame having an input; and a fixture configured to be attached to the test frame and facilitates a plurality of primary motions of one or more of the PMU and the fixture. The plurality of primary motions includes a linear motion of the input and a rotational movement of an output. The fixture has an upper assembly directly or indirectly coupled to the input. The upper assembly transfers the linear motion (Tz) of the actuator to the rotational movement (Rx) of the output. The upper assembly and lower assembly apply a bending moment (MX) and an axial compression (Fz) to the PMU. An external transducer collects data related to or generated by at least the plurality of primary motions. The fixture simultaneously provides the bending motion and axial compression to the PMU.

The invention relates to the technical field of dynamic simulation teaching, in particular to a dynamic simulation teaching system for urban and rural space planning, which comprises a data acquisition unit, an enhanced analysis unit and a multi-modal feedback processing unit. The method comprises the following steps: calculating the load deformation quantity of a component through a finite element algorithm, generating a ventilation efficiency cloud picture and a shadow coverage rate curve in combination with a computational fluid mechanics model and a ray tracing algorithm, analyzing a user operation instruction to trigger stress over-limit early warning, and realizing force feedback and multi-physics field data visualization through VR equipment. The problems of insufficient multi-source data fusion and lack of physical authenticity in traditional teaching are solved, dynamic physical verification and interactive teaching of a planning scheme are realized, and the planning decision ability and engineering practice cognition of students are improved.

The present application relates to the technical field of bubble plume simulation, in particular to a submarine bubble plume imaging simulation platform and a simulation method. The platform comprises a water tank, a plume leakage simulation system, an environment simulation system and a monitoring control system. The plume leakage simulation system comprises a gas generating mechanism, a water flow generating mechanism and a jet device, and the jet device is arranged at the bottom of the water tank. The environment simulation system is arranged in the water tank. The monitoring control system is connected with the plume leakage simulation system and the environment simulation system. The submarine cold spring bubble plume shape and behavior can be simulated, and the corresponding acoustic and optical images can be collected. These data can be used to train a deep learning model to achieve the function of target detection of the plume in a real sea area.

The invention relates to the field of neurological rehabilitation medicine teaching instruments, in particular to a device and a system for simulating abnormal muscular tension of a human body, comprising a main body, partitions and a fourth driving device arranged in the main body, the device comprises a main body, a partition arranged in the main body, a first driving device arranged in the partition, a second driving device arranged in the partition and a third driving device arranged in the partition, and the main body and the partition are connected and used for simulating the upper body and arms of a human body. The first driving device, the second driving device, the third driving device and the fourth driving device are sequentially and rotatably connected, so that the problem that an existing human body muscle tension testing device still cannot meet the training requirement of dynamic muscle tension characteristics in the actual use process is solved; and a measured value is higher than a true value due to the fact that the movement of the component is not supported by the auxiliary support during detection.

The invention provides an experimental device and method for simulating gas invasion well control of a complex karst cave type stratum. The device comprises a well drilling simulation system, a liquid-gas simulation system and a computer control system. The computer control system simulates an overflow and leakage coexistence scene by adjusting the well drilling simulation system and the liquid-gas simulation system, and in actual well drilling, if overflow and leakage occur, corresponding well drilling parameters can be collected according to overflow signals generated by actual well drilling; and corresponding control instructions and control parameters are output through the drilling parameters and the overflow and leakage control strategy, and the treatment effect and treatment efficiency of overflow and leakage coexistence are improved.

The invention discloses a drilling, bolting and grouting integrated dynamic monitoring experiment system and method. Two sliding rails are arranged on the two sides of a strip-shaped sliding groove in a supporting platform; the drilling machine support and the follow-up sliding seat are assembled on the two sliding rails in a sliding mode. The shaft body and the rod body bracket are arranged on the follow-up sliding seat at an interval and are respectively provided with the shaft sleeve and the rod sleeve; the drilling machine is connected with the holder; the transverse hydraulic cylinder is arranged below the supporting platform and connected with the drilling machine support through the vertical push plate. A grouting joint of the self-drilling anchor rod is clamped in the clamp holder; a loading hydraulic cylinder on the loading frame clamps the weakly cemented rock mass in the inner cavity; a plurality of sensors in the sensing control unit are used for monitoring the drilling state, and the control terminal is used for obtaining surrounding rock characteristic parameters based on monitoring signals and adjusting drilling parameters in real time. The method comprises experiment preparation; drilling operation is carried out, and drilling state parameters are monitored; grouting operation is conducted, and grouting pressure is monitored; and carrying out drawing test, and monitoring strain data. According to the invention, full-process dynamic simulation and full-process digital monitoring of drilling, bolting and grouting can be realized.

The invention discloses a dense-phase carbon dioxide pipeline leakage simulation system and method.The experimental device comprises a carbon dioxide injection device, a pressure-bearing container, a pressure-bearing pipeline, a temperature monitoring device and a temperature collecting device, and the carbon dioxide injection device is provided with a fluid outlet used for outputting dense-phase carbon dioxide; the pressure-bearing container is provided with a pressure-bearing cavity used for being filled with soil, the pressure-bearing pipeline is arranged in the pressure-bearing cavity, the pressure-bearing pipeline is connected with the fluid outlet, the pressure-bearing pipeline is provided with a leakage opening, the temperature monitoring device comprises a plurality of temperature sensors, the temperature sensors are arranged in the pressure-bearing cavity at intervals, and the temperature sensors are all electrically connected with the temperature collecting device. And the temperature acquisition device is used for receiving and processing the soil temperature monitored by the temperature sensor. The experimental device provided by the embodiment of the invention can simulate and verify the influence and diffusion rule of dense-phase carbon dioxide pipeline transportation leakage on soil temperature distribution, and provides a theoretical basis for dense-phase carbon dioxide leakage prevention and control and emergency disposal in practical application.

The invention belongs to the technical field of medical training, and discloses an operation training system and method based on multi-dimensional data perception fusion, and the system comprises an image collection module, a six-degree-of-freedom operation mechanism, a somatosensory and tactile feedback glove, an operation training robot, a simulation heart model, and a control system. The image acquisition module is in signal connection with the control system and is used for acquiring a 3D high-definition image and instrument space coordinates of an operation area in real time; and the six-degree-of-freedom operating mechanism is in signal connection with the control system and is used for converting an operation instruction of a doctor into a control signal of the operation training robot and feeding back force sense information. According to the scheme, a high-simulation operation training environment is provided through the six-degree-of-freedom teleoperation mechanism, the somatosensory and tactile sensing gloves, the operation training robot and the simulation heart model made of the multi-dimensional sensing electronic skin, multi-dimensional recording and feedback of operation operation are achieved, and the operation training efficiency is improved by combining a transfer learning method. And accurate recording and reproduction of the operation process of the qualified doctor are realized.

The invention discloses a modular tunnel fire simulation experiment device, and relates to the technical field of experiment devices, an arc-shaped metal soft bent plate is matched with a hard plate body to arrange a simulation tunnel on a rotating table; the edges of the two sides of the soft bent plate are positioned on the hard plate body; the hard plate body is provided with a plurality of fixing positions of the soft bent plate, so that the form of the soft bent plate can be adjusted as required, and experimental tunnels in various forms can be simulated as required; the modularized tunnel fire simulation experiment device not only can simulate the gradient of the tunnel and different positions and different speeds of vehicles on fire in the tunnel, but also can achieve the technical effect that the shape and specification of the tunnel for experiment can be conveniently changed according to needs.