73 results about "Surgical simulation" patented technology

An interactive and dynamic surgical simulation system may be used in the context of a computer-implemented interactive surgical system. The surgical simulation system may provide coordinated surgical imagining. A processor may be configured to execute a simulation of a surgical procedure. The surgical procedure may be simulated in a simulated surgical environment. The processor may generate a first visual representation and a second visual representation. The first visual representation may be of a first portion of the simulated surgical environment. The second visual representation may also be of the first portion of the simulated surgical environment.

The invention discloses a neurosurgical operation virtual simulation training system based on multi-modal data fusion, and relates to the technical field of operation simulation. The data acquisition and preprocessing module acquires data such as images and force feedback, and standardized storage is performed after filtering and registration; the multi-modal data fusion module performs weighted fusion on the data by using an attention algorithm to generate a three-dimensional model; the virtual operation scene construction module generates a high-fidelity environment through ray tracing and a physical engine; the surgical operation interaction simulation module realizes accurate interaction through positioning tracking and force feedback; the training evaluation and feedback module quantifies operation performance and provides guidance; and the system management and iteration module guarantees operation and supports data updating and optimization. According to the method, a high-reality scene is constructed through multi-modal fusion, interaction and multi-dimensional evaluation help skill improvement, dynamic difficulty and personalized paths are adaptive to different users, collaborative training and privacy data collaboration are supported, operation training standardization is promoted, and the risk of errors in an operation is reduced.

The invention relates to the technical field of medical image processing and surgical navigation, in particular to a liver segmentation, modeling and surgical simulation system based on a cascade neural network and a multi-scale reconstruction technology. The multi-scale dynamic registration module is used for carrying out coarse segmentation and fine segmentation on liver and focus areas of the medical image and is used for non-rigid registration and respiratory motion compensation of the multi-modal medical image; the physical enhancement modeling engine is used for constructing a liver vessel tree three-dimensional model containing hemodynamic characteristics; the operation navigation and risk assessment module is used for performing real-time navigation and operation path planning in the operation; and the self-adaptive computing framework provides underlying computing resource support for the system. And high-precision segmentation: through a cascade recursive network and a boundary sensitive loss function, the liver tumor segmentation Dice coefficient reaches 94-96%, which is increased by 6-12% compared with the traditional method.

The invention relates to the technical field of system integration of minimally invasive surgery simulation training equipment, and discloses a multi-module linkage control and multi-dimensional synchronous evaluation first-aid minimally invasive simulation training system which integrates a laparoscope, anesthesia monitoring, a dummy and a control acquisition evaluation unit. The control unit realizes full-process control based on a finite-state machine: executing anesthesia parameter and instrument interlocking verification before an operation, and unlocking an operation permission after passing the verification; during an operation, the simulation person is driven in real time according to instrument operation to generate physiological changes, a critical value is triggered by misoperation to automatically switch an emergency mode, operation response is paused, and resuscitation examination is activated. The acquisition unit marks millisecond-level timestamps for videos, tracks and physiological data by using a unified clock source, and the evaluation unit generates a multi-dimensional report according to the millisecond-level timestamps. Real-time coupling of physiological parameters and operation is achieved through software and hardware closed loops, the clinical process is restored, the problem of module isolation is solved, and cooperation and evaluation accuracy is improved.

The invention relates to a model rendering method, a surgery simulation method and a computer readable storage medium, and the method comprises the steps: responding to the interaction between a user and a data model, and determining a user attention region in the data model, the data model comprising voxel data and grid data associated with a preset region of interest; and rendering at least one part of the data model based on the voxel data and the grid data according to the user attention area to obtain a target rendering result. By adopting the method, the reality sense of operation simulation can be improved, and meanwhile, the computer performance requirement required by operation simulation is reduced.

A robotic surgical simulation system for clinical workplace simulation includes a virtual reality headset configured to display the clinical workplace simulation, a processor, and a memory. The memory includes instructions stored thereon, which, when executed by the processor, cause the robotic surgical simulation system to: generate a virtual operating room within a three-dimensional coordinate space. The virtual operating room includes a virtual surgical console. The instructions when executed by the processor further cause the system to compute, based on the captured image, a position of the user within the three-dimensional coordinate space relative to the virtual surgical console; and determine whether a user is engaged with or disengaged from the virtual surgical console based on the computed position.

According to an embodiment of the inventive concept, a method for matching an actual surgical image and a 3D-based virtual surgical simulation environment, which is performed by an apparatus, includes setting POI information during surgery at each of surgery steps in a pre-stored surgical image obtained by performing surgery the same as the actual surgical image, matching the POI information with a virtual pneumoperitoneum model of a patient, which is used for the 3D-based virtual surgical simulation environment, the virtual pneumoperitoneum model being displayed on a UI, recognizing a real-time surgery step of the actual surgical image and determining a location of the POI information for the respective recognized surgery step, and obtaining and displaying image information, which is captured by moving a location of an endoscope inserted into the virtual pneumoperitoneum model to the same location as the determined location of the POI information, through the UI.

The invention belongs to the field of medical teaching training, and discloses a urinary surgery simulation training method and system based on tactile feedback, and the method comprises the steps: collecting operation behavior data and force change data, and obtaining a preliminary perception sequence; obtaining a classified organization state cluster according to the preliminary sensing sequence; extracting a hand feeling perception feature from the classified organization state cluster to obtain an update cluster; aiming at the update cluster and the operation behavior data, constructing a support vector machine model to train a tactile feedback response to obtain a dynamic matching function; processing the tactile feedback response data through a dynamic matching function to obtain an optimized feedback sequence; acquiring tissue state update from the optimized feedback sequence, and performing real-time calibration on hand feeling perception by adopting an information processing link to obtain a calibrated perception model; and according to the calibrated sensing model and the force change data, generating a corresponding operation processing track. According to the method, high authenticity and low delay of tactile feedback are realized, and an accurate dynamic matching result is provided for a complex operation scene.

A computing device for generating a surgical procedure plan via surgical simulation may include a processor. The processor may be configured to obtain an indication of a surgical task. The surgical task may be associated with a surgical step of the surgical procedure plan. The processor may be configured to obtain a surgical choice and a corresponding predicted surgical outcome. The surgical choice and the corresponding predicted surgical outcome may be associated with the surgical task. The processor may be configured to generate a visualization of the surgical choice and the corresponding predicted surgical outcome in a simulated environment. The processor may be configured to obtain an indication of the surgical choice being selected. The processor may be configured to store the surgical choice in the surgical procedure plan.

In certain aspects of the present disclosure, a computer-implemented method includes receiving a 3D imaging of a heart valve in a pre-operative state. The method includes generating a segmented heart valve by segmenting the heart valve of the 3D imaging. The method includes simulating a surgical procedure on the parameterized heart valve. The method includes determining at least one post-operative outcome based on simulating the surgical procedure on the parameterized heart valve. Systems and machine-readable media are also provided.

The thyroid surgery simulation teaching aid comprises a wearing part and a display part, the bottom end of the wearing part is connected with the display part, two ends of the wearing part are respectively provided with a first connecting buckle and a second connecting buckle, the first connecting buckle and the second connecting buckle are arranged in a matching manner, and one surface of the wearing part is provided with a thyroid model; the display part comprises a first display page and a second display page, one side of the first display page is connected with one side of the second display page, and the other side of the first display page is detachably connected with the other side of the second display page; the first display page is provided with a thyroid front side structure chart and a thyroid back side structure chart; and a thyroid resection structure chart is arranged on the second display page. The thyroid surgery simulation teaching aid can be directly worn on the neck of a model, the structure, the position and the size of the thyroid are visualized, teaching and science popularization are more immersive, basic teaching and health propaganda and education of thyroid surgery are facilitated, and patients and students are helped to understand the thyroid structure.

The invention relates to the technical field of medical operation simulation, and provides a neurosurgical operation bleeding emergency treatment simulation method, which comprises the following steps: S1, classifying neurosurgical operation clinical bleeding factors according to properties; s2, acquiring and synchronously simulating real-time state data of the patient; s3, establishing a correlation mechanism between the classified clinical hemorrhage factors and an operation simulation system; s4, based on the association mechanism and the real-time state data of the patient, running bleeding triggering logic, and triggering bleeding simulation; s5, responding to a hemostasis operation instruction of an operator, and simulating an execution process of a clinical hemostasis method; and S6, determining a hemostasis result according to the execution condition of the hemostasis operation and the real-time state change of the patient. Through comprehensive coverage of clinical bleeding factors, linkage of real-time states of patients, construction of multi-dimensional accurate bleeding trigger logic and refinement of hemostasis operation simulation and feedback, a complex bleeding scene of a neurosurgery operation can be truly reproduced, the bleeding emergency treatment capability of doctors is effectively improved, and the practice risk of real patients is avoided.

The utility model discloses a threading module for operation training and an operation simulation device. The threading module for surgical training comprises a base, and at least one stand column is arranged on the base; the threading hole is formed in the stand column and penetrates through the two ends of the stand column; the photoelectric sensor group is arranged along the circumferential direction of the inner wall of the threading hole and is used for detecting whether the wire body passes through the threading hole; the signal processing module is connected with the photoelectric sensor group; the feedback device is connected with the signal processing module; and when the photoelectric sensor group detects that the wire body completely passes through the threading hole, the signal processing module triggers the feedback device to output a threading success signal. In this way, the function of automatically detecting whether threading succeeds or not can be achieved, the training result is fed back in real time, and the training process is more accurate and intelligent.

This invention relates to a laparoscopic surgery simulation trainer, comprising an abdominal cavity simulation device, a laparoscopic simulation device, and a display screen. The abdominal cavity simulation device includes a housing and a monitoring rod. The housing is open at the front, and a partition separates the housing into a front simulation cavity and a rear power cavity. An abdominal cavity simulation layer is disposed within the simulation cavity, and the abdominal cavity simulation layer is tubular, made of flexible rubber. A camera is mounted at one end of the monitoring rod and located in the simulation cavity, and the other end is located in the power cavity. A light source is provided at the operating end of the laparoscopic simulation device. A circular tubular mounting sleeve is arrayed within the interlayer between the abdominal cavity simulation layer and the housing. The abdominal cavity simulation layer has multiple through holes evenly distributed around the axis of the mounting sleeve, and multiple photosensitive sensors are evenly distributed on the inner wall of the mounting sleeve. The purpose of this invention is to solve or at least alleviate the problem of difficulty in viewing the operation process and results within the abdominal cavity in current transvaginal laparoscopic surgery simulation devices, and to provide a laparoscopic surgery simulation trainer.

A surgical training platform configured to interface a haptic controller with a surgical simulation tool. The platform includes a control system, at least one surgical simulation tool having at least one free end extending along a first axis, at least one haptic controller including a connection system configured to mechanically and electrically connect, reversibly, the at least one surgical simulation tool. The control system includes a system for recognising each surgical simulation tool configured to obtain identification information specific to the surgical simulation tool connected to the haptic controller, and to communicate the identification information to the control system in such a way that the control system recognises each surgical simulation tool connected to the haptic controller.

The invention relates to the technical field of injury simulation, in particular to an injury simulation device and system.The injury simulation device comprises a simulation box body, a first door plate, an animal model and a simulation assembly, the simulation assembly comprises an elastic piece protection cover, an elastic piece launching unit, wrapping sealing cloth and a wrapping sealing unit, and elastic pieces can be prevented from splashing all around through the elastic piece protection cover; subsequent collection and treatment are facilitated; the wrapping and sealing unit is started to drive the wrapping and sealing cloth to be wound on the head of the animal model, poison gas is limited in the circulating respiratory system, then the animal model is moved to the injury simulation bin, and finally the animal model is taken out by opening the first door plate and can be used for follow-up operation simulation operation; therefore, by limiting the elastic pieces, the situation that surrounding parts are damaged due to splashing around is avoided, and collection can be facilitated; meanwhile, after poison gas simulation is finished, the head of the animal model is wrapped and sealed, poison gas leakage is avoided, the safety of workers is greatly guaranteed, and the device is more convenient for the workers to use.

The utility model discloses a ferrule module for operation training and an operation simulation device. The ferrule module comprises a base; the stand column is arranged on the base; the ferrule element is movably arranged on the stand column in a sleeving manner; the sensing assembly is arranged on the ferrule element and / or the stand column; the signal processing module is electrically connected with the sensing assembly; the prompting device is connected with the signal processing module; the sensing assembly is used for detecting the relative position relation between the ferrule element and the stand column, and the signal processing module judges whether the ferrule action reaches the standard or not according to a sensing signal and outputs feedback through the prompting device. In this way, the sensing assembly is arranged on the ferrule element and / or the stand column, whether the ferrule action reaches the standard or not is automatically detected, the training result is fed back in real time, and the training process is more accurate and intelligent.

A system for mixed reality surgical simulation is provided. The system includes a simulator, an optical tracking system, an input device, a visualization screen, and a simulation workstation, wherein the simulation workstation renders an augmented view on the visualization screen.

A surgical simulation apparatus comprising a central piece (1) having a housing (11), and a removable partition (2) detachably disposed within the housing (11). The removable partition (2) preferably has a central wall (21) and two elastic layers (22) disposed on either side of the central wall (21). The apparatus provides for simulating surgery and surgical medical techniques with the simplest possible number of parts and manufacturing method.

The application discloses a bronchial stenosis degree evaluation method and system, and belongs to the technical field of medical imaging. The method comprises the following steps: combining lung CT image data to construct a three-dimensional lung bronchial model; under the three-dimensional lung bronchial model, a fluid dynamics model of lung tissue is established based on an SPH method to simulate fluid flow before and after surgery, the fluid dynamics and tissue mechanics behavior in the surgical process are simulated by simulating the interaction between airflow and lung tissue; and based on the fluid dynamics and tissue mechanics behavior in the simulated surgical process, a physical-based evaluation index is constructed to evaluate the tracheal stenosis degree. The method is a lung bronchial preoperative planning scheme simulation method based on smooth particle hydrodynamics, and can provide intuitive preoperative planning and surgical simulation for surgeons.

To provide a renal hilum surgical simulation system.SOLUTION: A renal hilum surgical simulation system is provided. The renal hilum surgical simulation system includes simulated tissue layers and simulated renal organs and / or vasculatures. The renal hilum surgical simulation system is adapted for but not limited to laparoscopic donor nephrectomy surgical procedures.SELECTED DRAWING: Figure 1

The invention relates to the technical field of neurosurgery simulation training equipment, in particular to a minimally invasive intracranial hematoma removing surgery simulation training device which comprises a round ruler, a hematoma removing device, a mounting frame and a self-locking rotating part, a fitting plate is movably arranged on the inner side of a mounting plate, and a main air bag making contact with the fitting plate is arranged on the inner side of the mounting plate; according to the minimally invasive intracranial hematoma removal operation simulation training device, the main air bag and the side air bags are arranged on the inner side of the mounting plate and matched with the pneumatic control mechanism, the main air bag and the side air bags are arranged on the outer surface of the inner side of the mounting plate, and the side air bags are arranged on the outer surface of the inner side of the mounting plate and movably arranged on the side edges of the attaching plate. The self-adaptive flexible fitting of the simulated skull model and the stereotactic positioning assembly can be realized, the main air bag and the side air bag are cooperatively expanded, the size deviation, the assembly clearance and the operation stress of the model can be compensated, the fitting plate is tightly attached to the surface of the model, and the training deviation caused by poor fitting is avoided.

The invention discloses an assisted reproductive surgery simulation training system based on a VR technology, the system comprises a controller and a VR hardware device connected to the controller, the VR hardware device is used for displaying preset surgery visualization data to a user and obtaining action data of the user; the controller comprises an environment simulation module which is used for simulating and generating the operation visualization data according to a target operation scene and based on a preset physical engine and scene image data; the interaction processing module is used for identifying the action data of at least one user to obtain corresponding operation execution information; and the feedback evaluation module is used for evaluating the operation execution information of the user in the historical time period based on the LSTM neural network so as to generate operation feedback information. Therefore, the simulation precision of the assisted reproductive surgery can be improved based on VR and algorithm technologies, more real and effective surgery simulation training is provided, and the surgery level of students is improved.

A method for creating surgical simulation information by a computer includes creating a virtual body model corresponding to a body state of a patient for surgery, simulating a specific surgical process on the virtual body model to obtain virtual surgical data, dividing the virtual surgical data into minimum surgical operation units, each unit representing one specific operation, and creating cue sheet data composed of the minimum surgical operation units, wherein the cue sheet data represents the specific surgical process.

Systems and methods for selectively perfusing cadaverous organ systems for surgical simulation are provided. A first fluid reservoir contains a first perfusion fluid and fluidically connects to conduit, which fluidically connects to a first body part associated with the organ system. A pump fluidically connects to the first reservoir and conduit and directs the first perfusion fluid into the first body part. A second fluid reservoir contains a second perfusion fluid and fluidically connects to conduit, which fluidically connects to a second body part associated with the organ system. In aspects, the second fluid reservoir is positioned at higher elevation than the organ system to create passive feed pressure of the second perfusion fluid to the second body part. The systems may include drainage mechanisms from the organ system. Aspects include selective perfusion of the liver, thorax, head and neck, and / or extremities of a cadaver.

The application discloses a breast endoscope simulation training device, and relates to the technical field of surgical simulation training devices, which comprises a front chest shell and a back lining, the back lining is installed in the front chest shell, so that a thoracic cavity is formed between the front chest shell and the back lining; the front chest shell is provided with a surgical channel communicated with the thoracic cavity; a magic tape is detachably installed on the inner wall of the thoracic cavity, the magic tape comprises a rough surface layer and a hook surface layer, the hook surface layer is arranged on the cavity wall of the thoracic cavity close to the front chest shell, and the rough surface layer is bonded to the hook surface layer. The application can simulate the operation environment and the operation feeling, has low cost, and can be repeatedly used for training.

The utility model belongs to the technical field of operation simulation training, specifically relates to a kind of electromagnetic navigation endoscopic operation path simulation training equipment, including organism, display and support frame are slidably connected on the organism along vertical direction, further include: adjusting mechanism, the adjusting mechanism includes worm wheel and worm that rotate and connect on organism, worm wheel and worm are engaged, the lower end of display is screw thread connection with worm wheel, the end of support frame is screw thread connection with stud, the stud is rotatably connected with organism, the stud is transmission connection with worm, reset spring is connected between the bottom of support frame and organism. The utility model can adjust the height position of support frame with the depression of the arm of operator, facilitate the height position of the arm corresponding to the operator of different height to be adapted, improve applicability, and the height position of display can be adjusted passively with the downward movement of support frame, improve the convenience of training.

A method for providing a patient-specific 3D surgical simulation method, according to the present invention, may comprise the steps of: acquiring a scan image including an image of a target object outputted by scanning a patient's body; identifying images of the target object and one or more organs and blood vessels adjacent to the target object in the scan image; generating a first 3D model of a surgical area on the basis of first 3D modeling data of the identified image and second 3D modeling data related to the one or more organs and blood vessels; setting third 3D modeling data and environmental variables for surgical equipment to be applied to the first 3D model; generating a second 3D model for the surgical equipment on the basis of the third 3D modeling data and the environmental variables; and providing a patient-specific surgical simulation on the basis of the first 3D model and the second 3D model.