110 results about "Surgical training" patented technology

A surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside the frame. The simulated tissue model is adapted for practicing a number of surgical procedures including but not limited to transanal excisions and transvaginal hysterectomies. Portions of the frame comprises a material adhesively compatible with the material of portions of the simulated tissue model to secure and suspend the simulated tissue model within the frame. The simulated tissue model may also include simulated vasculature configured to loop through apertures in the frame to secure and suspend the simulated tissue model within the frame.

The invention relates to the technical field of visual identification, and discloses an operation stage identification method based on a dynamic data balance strategy, and the method comprises the following steps: S1, collecting operation original data, and carrying out the annotation of the collected original data; s2, preprocessing the annotated original data by utilizing a dynamic data balance strategy so as to form a data set; s3, constructing an Xception-double flow LSTM (Long Short Term Memory) recognition model; and S4, training and optimizing the Xception-double-flow LSTM recognition model by using the data set. According to the method, the problem of bias learning is effectively relieved, the influence of data volume difference on a model learning process is effectively reduced, and deviation is reduced, so that higher classification performance is shown in an operation stage identification task; the method effectively improves the overall recognition precision of the operation stage, can provide more structured support for operation training, quality control and clinical decision making, and further lays a foundation for research and development of an intelligent operation auxiliary system.

A surgical training platform including a display unit for displaying the virtual environment, a calibration module connected to the display unit, a training module with a haptic controller, a control system configured to identify the different modules, analyse the data related to the movement(s) of each tool connected to the haptic controller, generate the virtual environment, interface each virtual surgical element with a corresponding real element. All of modules are configured to be reversibly attached to each other in a known configuration, each haptic controller includes a connection system configured to reversibly mechanically connect a surgical training tool, each haptic controller being further configured to measure each movement in space of the surgical training tool once the latter is connected to the haptic controller. The control system further includes a system for recognizing the tool.

The utility model relates to the field of medical instruments, and discloses an operation training mold and an operation training system. The surgical training mold comprises a cavity simulation assembly, the cavity simulation assembly is used for providing an operation space for executing simulated surgical operation, the cavity simulation assembly comprises multiple inlets, the multiple inlets comprise multiple flexible skin simulation parts and multiple openings formed in the multiple skin simulation parts, and the multiple inlets face multiple directions. The system can be used for simulating entrance into the body of a patient from multiple entrances in different directions, so that various simulation operations can be performed.

The invention discloses an operation training method and system based on three-dimensional trajectory tracking of an operation instrument, and relates to the field of medical instruments and educational training, and the method comprises the steps: determining key points of an operation based on a position trajectory, constructing a visual trajectory model through the key points, constructing a virtual environment, and carrying out the simulation of an operation scene in the virtual environment, an operation simulation result is obtained; performing quantitative analysis on the trajectory in the operation process by using the operation simulation result, and generating an operation evaluation report and an improvement suggestion; and storing the related data in an index storage mode. According to the method, the virtual environment is constructed by utilizing the position track of the surgical instrument, the evaluation report and the improvement suggestion are generated through quantitative analysis, the operation skill of a surgeon can be objectively and accurately evaluated, and reasonable suggestions are provided for the surgeon; and related data is subjected to index storage, so that postoperative redisk of the surgeon is facilitated, and the operation skill training effect of the surgeon is effectively improved.

The invention relates to a gynecological pelvic and abdominal lymphatic cleaning prediction model training method and a lymph node model.The training method comprises the steps that preoperative image data and intraoperative instrument operation parameters of historical patients are subjected to modeling processing, and a dynamic mechanics-fluid coupling lymph node model based on bionic materials is constructed; mechanical deformation and fluid flow of a lymphatic system in various clinical scenes are simulated; performing data acquisition processing on the used lymph node model, and quantifying the dynamic influence of the surgical operation on the lymphatic system; the relevance between historical operation and injury risk is deeply learned, and the lymphatic vessel rupture probability is output; real-time feedback control processing is carried out based on the lymphatic vessel rupture probability, a training correction instruction and a risk thermodynamic diagram are generated, and medical workers are guided to optimize surgical skills. Through fusion analysis of the high-fidelity bionic model and multi-modal data, dynamic simulation of the mechanical-fluid coupling effect in the operation and real-time quantification of the operation risk are achieved, and the accuracy and clinical transformation value of operation training are improved.

Disclosed herein are systems, methods, and software for providing a virtual environment with enhanced visual and haptic detail. In some embodiments, the haptic tool and haptic target are assigned affordance and susceptibility values, respectively, that are used to determine visual and haptic feedback.

The invention discloses an adjustable 3D printing temporal bone surgery training model and a training method thereof.The 3D printing technology is adopted, printing materials similar to all structures and textures of a human body are selected to manufacture a simulated temporal bone model, a clinical temporal bone surgery conventional approach is integrated in the model, and a clinical operation scene is simulated; preoperative training and planning of ear neurosurgery are assisted; meanwhile, digital technologies such as CT scanning and 3D scanning are utilized, and personalized customization of the simulated temporal bone model for special cases is achieved through the 3D printing technology.

The present invention relates to a medical hydrogel, and in particular to a hydrogel, a preparation method therefor and the use thereof. The preparation method comprises the steps of: completely dissolving polyvinyl alcohol in deionized water to obtain a component A in a clear state; dissolving acrylamide in deionized water, then adding N,N-methylene bisacrylamide and ammonium persulfate, and mixing same until uniform to obtain a component B; and mixing the component A and the component B at a volume ratio of 1:1 and stirring same until the mixture is completely clear and transparent, then adding Ag-ZnO nanoparticles, and finally dropwise adding a tetramethylethylenediamine solution to obtain a hydrogel prepolymer, and curing same to obtain the hydrogel. The hydrogel obtained in the present invention can be applied to an organ model for surgical training, so that the prepared organ model can more accurately simulate the properties of a biological soft tissue to make surgical training more realistic, has a better performance in terms of inhibiting bacteria, anti-fatigue, electric conduction, stretching, compression and the like, and can also be subjected to operations such as electrocoagulation and hemostasis, endoscopy, suturing and cutting.

An arrangement applied to a simulator for surgical training in ophthalmology that is anatomically similar to the human eye, and has the purpose of training and qualification in ophthalmological surgical processes. An artificial cataract for use in simulators for surgical training in ophthalmology.

Disclosed are a method for creating a surgical training model, a surgical training model apparatus, a bone model, an article that emulates tissue of an animal musculoskeletal system, an article that emulates animal fat tissue, and an article that emulates animal skin tissue. One version of the method comprises placing a spinal vertebrae model in a cavity model that emulates an animal body cavity; forming a first layer on top of the vertebrae model, wherein the first layer emulates an animal muscle tissue; placing a second layer over the first layer, wherein the second layer emulates an animal fat tissue; and placing a third layer over the second layer, wherein the third layer emulates an animal skin tissue. The spinal vertebrae model can be 3D printed from a thermoplastic polymer and infiltrated with a foam into an interior space of the 3D printed spinal vertebrae model.

A force feedback device and method for assisting surgical robot clamping operations, the present invention belongs to the field of VR force feedback and mechanical technology. The device includes a variable stiffness mechanism, a blocking structure, a ratchet clutch structure, a gripping mechanism, a measuring unit, a control processing unit and a power supply module. The effective length of the lever arm between the elastic element and the feedback force output position is changed by the variable stiffness mechanism, thereby achieving adjustment of the stiffness of the force feedback device. The blocking mechanism achieves infinite stiffness rendering by limiting the operator's grip. The mode switching between zero stiffness and stiffness rendering can be achieved by engaging and disengaging the claw of the ratchet clutch structure with the ratchet. Therefore, the force feedback device can achieve real physical stiffness feedback ranging from zero impedance to theoretically infinite. In surgical training or other tasks, it provides the user with the force information in the interaction between the user's hand and the virtual object as if it were real, and the properties of the elastic element make the present invention safer.

Provided in the present disclosure are materials, devices, systems, and methods for performing cryo-surgery in a mammalian subject. More particularly, presented are a slurry, devices, systems, and methods for subcutaneously injecting the slurry into a patient in need of bodyfat reduction intervention. The slurry, devices, systems, and methods permit highly efficacious subcutaneous ice phase-change lipolysis while not requiring that the patient be placed under general anesthesia, nor requiring significant new surgical training among practitioners.

An endoscopic surgery training device is disclosed. A surgical training device according to one embodiment of the present invention may comprise: a housing including a training space formed inside the housing for performing surgical training, and a support plate forming the bottom of the training space; the support is used for fixing the training object component; and a drive unit which includes a holder support member coupled to the holder and which changes the position of the holder coupled to the holder support member in the training space by at least one degree of freedom movement. A position changing unit configured to change the training target member fixed to the support to a specific simulation position of an organ to be trained in the training space; a channel forming part which is formed in the housing so as to form an entry path for an endoscope device that enters the training space from the outside; and a control unit for controlling the drive unit.

The invention discloses a blood vessel model collision force detection method for interventional operation training, which comprises the following steps: arranging a blood vessel model in a closed shell, and connecting the blood vessel model with an external flow pump to promote fluid to circularly flow in the blood vessel model; the closed shell outside the blood vessel model is filled with medium liquid, and the blood vessel model is completely immersed in the liquid medium; a plurality of pressure sensors connected with an external data processing unit are orderly distributed on the inner wall surface of the closed shell; during training, the guide wire extends into the blood vessel model for interventional operation, when the guide wire collides with the wall surface of the blood vessel model, the wall surface of the blood vessel model triggers the medium liquid to trigger the medium liquid in the closed shell to generate pressure field change, and the corresponding pressure sensor monitors pressure field data and feeds back the pressure field data to the data processing unit; the data processing unit obtains the pressure value and calculates and outputs the corresponding collision force, objective, quantitative and comprehensive data feedback of the collision force in interventional operation training is achieved, and the operation training effect is greatly improved and guaranteed.

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.

A kyphoplasty system includes various instruments which can be selectively used in a surgical theater (e.g., during a surgical operation on a patient) or a surgical training environment. The kyphoplasty system can include one or more of a kyphoplasty apparatus, a prone table mat, a connector system, a bone introducer needle, and a biopsy device. The kyphoplasty system may also include a training system for use in the training environment.

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 present application relates to the field of robot simulation and control technology, in particular to a bronchoscope robot simulation control platform and method based on VTK, which is suitable for structure modeling, motion control, virtual simulation and the like of continuum robots (such as bronchoscope robots), and can be widely applied to the fields of medical robot simulation, surgical training and robot control algorithm verification and the like. Firstly, the platform uses voxel modeling technology to model the bronchoscope robot, and only needs to set the robot structure parameters and motion degrees of freedom, so as to simulate the form and behavior of different continuum robots. The center line of the bronchial tree is quickly extracted using the vmtk library, and a motion control algorithm based on the center line of the bronchial tree is designed, so that the simulation platform can effectively simulate the interaction between the robot and the bronchial tree. At the same time, the built-in collision detection interface of vtk is used to calculate the collision between the robot and the bronchial tree in real time, and real-time and accurate feedback is carried out in the simulation process.

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 surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside the frame. The simulated tissue model is adapted for practicing a number of surgical procedures including but not limited to transanal excisions and transvaginal hysterectomies. Portions of the frame comprises a material adhesively compatible with the material of portions of the simulated tissue model to secure and suspend the simulated tissue model within the frame. The simulated tissue model may also include simulated vasculature configured to loop through apertures in the frame to secure and suspend the simulated tissue model within the frame.

The invention discloses hydrogel as well as a preparation method and application thereof, and the preparation method of the hydrogel comprises the following steps: dissolving polyvinyl alcohol and gelatin in water to form a gel precursor solution; mixing a developing filler with the gel precursor solution to form a composite precursor solution; wherein the mass content of the developing filler in the composite precursor solution is 0.2%-0.5%; and carrying out crosslinking treatment on the composite precursor solution by adopting a freeze thawing method to obtain the hydrogel. According to the preparation method of the hydrogel, the addition amount of the developing filler is controlled within the range of 0.2%-0.5%, so that the developing effect of the hydrogel can be highly matched with the actual surgical developing effect of human tissues, and more real and accurate visual feedback can be provided, so that the authenticity of surgical simulation can be effectively improved; and a more reliable training model can be provided for medical education and operation training.

The invention discloses an operating force feedback device and method for a minimally invasive surgery simulation training instrument in the technical field of medical auxiliary equipment.The experimental table is provided with a supporting shaft rod, and first rotating platforms are symmetrically arranged on the supporting shaft rod and can rotate around the supporting shaft rod; the second rotating platform is installed on the first rotating platform and can horizontally rotate around the first rotating platform, the minimally invasive surgery instrument penetrates through the second rotating platform and can stretch out and draw back relative to the second rotating platform, and the VR glasses are used for being worn by an operator. By means of the force feedback mechanism, tactile feedback in the operation process can be simulated more truly, and therefore the effect and safety of operation training are improved.

The utility model relates to the field of medical instruments, and discloses a liquid injection device for operation training and an operation training system. The liquid injection device comprises a liquid storage device, a liquid conveying pipe and a gas conveying assembly, wherein the liquid storage device is used for storing liquid; an inlet of the infusion tube is communicated with the reservoir, and an outlet is used for outputting liquid; the gas transmission assembly is arranged above the liquid storage device and comprises a gas inlet channel and a pressure pump, a gas outlet of the gas inlet channel is communicated with the liquid storage device so as to transmit gas to the liquid storage device, and the pressure pump is arranged on the gas inlet channel and used for pumping the gas in the gas inlet channel into the liquid storage device. Liquid can be injected into an operation object simulating surgical operation so as to simulate a real surgical operation effect.

The invention discloses a force feedback device and method for assisting a surgical robot in clamping operation, and belongs to the technical field of VR force feedback and machinery. The device comprises a variable stiffness mechanism, a blocking structure, a ratchet clutch structure, a holding mechanism, a measuring unit, a control processing unit and a power supply module. The effective length of the lever arm between the elastic element and the feedback force output position is changed through the variable stiffness mechanism, and then the stiffness of the force feedback device is adjusted. The blocking mechanism achieves rendering of infinite stiffness by limiting grip by an operator. And the mode switching between zero rigidity and rigidity rendering can be realized through the engagement and disengagement of the ratchet wheel clutch structure clamping jaw and the ratchet wheel. Therefore, the force feedback device can realize real physical stiffness feedback in a range from zero impedance to theoretically infinite. In surgical training or other tasks, the force information in interaction between the hand of the user and the virtual object is provided to the user as truthful, and the property of the elastic element makes the invention safer.

The utility model relates to the field of medical teaching models, and discloses a model for surgical training of doctors, which comprises a human body module, the outer side of the bottom end of the human body module is fixedly connected with a mounting block, the inner wall of the mounting block is provided with a mounting assembly, the bottom end of the mounting assembly is provided with four groups of elastic bands, and the elastic bands and the mounting block are arranged in parallel. A stabilizing assembly is arranged at the bottom ends of the elastic bands and comprises a first fixing band, the top end of the first fixing band is fixedly connected to the bottom ends of the two elastic bands, a limiting column is fixedly connected to the bottom end of the first fixing band, and fixing grooves are formed in the front end and the rear end of the lower side of the limiting column. According to the utility model, through the cooperative use of the stabilizing assembly and the mounting assembly, when the human body module is placed, the human body module can be tightly attached to the surface of the human body quickly and stably through the cooperation of the stabilizing assembly and the elastic band, so that the stable fixing effect is kept, and the training effect is improved.

Disclosed herein are systems, methods, and software for providing a virtual environment with enhanced visual textures and haptic detail. In some embodiments, a texture atlas and UV mapping is used to render virtual objects having multiple textures that can be manipulated in real time. In some cases, UV coordinates are used to provide enhanced haptic detail.

The disclosure relates to a simulated tissue useful as a surgical training aid, the simulated tissue including at least the following: (a) a skin layer, (b) a fat layer, (c) a muscle layer, (d) a first mesh, (e) an interstitial layer, (f) a second mesh, (g) a structural layer incorporating one or more anatomical components, and (h) a base layer. Methods for constructing the simulated tissue are also disclosed. The simulated tissues described herein can be used as a soft tissue surgical task trainer for numerous surgical procedures.

A system for training or performing laparoscopic surgery includes a device for determining forces exerted between parts of one or more laparoscopic tools and an indicator means for indicating determined forces exerted between interacting parts to a user. This system is designed to enhance the surgical training process by providing real-time feedback on the forces applied during surgery, thereby aiding in the development of the necessary skills for precise and safe surgical operations. The system may also include a processor for instructing a user to perform a series of specific exercises, which can vary in difficulty, to monitor and estimate individual learning curves, and to teach estimation of the forces exerted.

To provide a surgical simulator for surgical training.SOLUTION: The simulator includes a frame defining an enclosure, and a simulated tissue model located inside the enclosure. The simulated tissue model is adapted for practicing hysterectomies, and includes at least a simulated uterus and a simulated vagina. The simulated tissue model is suspending inside the enclosure with two planar sheets of silicone such that the tissue model is located between the two sheets each of which forms a fold and is connected to the frame. The frame may be shaped like a cylinder and located inside a cavity of a larger laparoscopic trainer (training instrument) having a penetrable simulated abdominal wall. The tissue model is interchangeable and accessible laterally through an aperture provided in a support leg of the trainer.SELECTED DRAWING: Figure 2