A training system and method for virtual simulation of electrosurgical mirror surgery

Abstract

The present application relates to the technical field of electric resectoscope operation simulation training, and discloses a kind of training system of virtual simulation electric resectoscope operation, including preset model scene unit, simulation system configuration unit, simulation system guide prompt unit, simulation system operation unit and simulation system operation effect unit;Also disclosed is a kind of method of training system of virtual simulation electric resectoscope operation, comprising the following steps: S1, training scene and operation object construction;S2, preoperative preparation and simulation surgical instrument selection;S3, simulation surgical operation;S4, simulation training evaluation.The present application constructs training scene and corresponding operation object, and carries out electric resectoscope operation simulation training in virtual scene by guide prompt, and displays detailed simulation training performance evaluation table after training;Operator can carry out targeted training according to his weak point, and the training effect is better;And not subject to manpower, material resources and site restrictions, without the guidance of others, suitable for routine development.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric resectoscope operation simulation training, in particular to a virtual simulation electric resectoscope operation training system and method. BACKGROUND

[0002] The electric resectoscope includes a prostate resectoscope for clinical urology surgery and a hysteroscope resectoscope for gynecology, the prostate resectoscope is mainly used for resection of prostate gland tissue hyperplasia, and the hysteroscope resectoscope is mainly used for resection of uterine fibroids, uterine polyps and other diseased tissues, wherein the surgical methods include electric resection, plasma enucleation, laser treatment and bladder tumor electric resection, other instruments such as an electric resection needle and a rolling ball electrode can be replaced, and treatments such as uterine mediastinal incision and endometrial hyperplasia can be performed.

[0003] The training of electric resectoscope operation can adopt animal or in-vitro experiments, and can also adopt a training box simulation training method; the training box simulation training is mostly physical training, such as cutting a channel in an apple to simulate cutting of the prostate, and pushing the cut fruit into a black bag in front to simulate the position and function of the bladder, and there is simulation training of peeling along the gap between the orange pulp and the orange peel.

[0004] However, the animal or in-vitro experiment has a high threshold, is limited by manpower, material resources and site, is not easy to carry out frequently, and is not suitable for daily development. In addition, the training box training is open, lacks training design and training guidance, has no training rule guidance under a system design, and lacks purpose of training. SUMMARY

[0005] The present application aims to provide a virtual simulation electric resectoscope operation training system and method to solve the problems in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A virtual simulation electric resectoscope operation training system, comprising a preset model scene unit, a simulation system configuration unit, a simulation system guidance prompt unit, a simulation system operation unit, a simulation system operation effect unit and a simulation system performance evaluation unit;

[0008] The preset model scene unit is used to construct a training scene and a corresponding operation object;

[0009] The simulation system configuration unit is used to load and display the training scene and the corresponding operation object, and select a simulation surgical instrument;

[0010] The simulation system guiding prompt unit is used for providing process prompts, operation prompts and error prompts;

[0011] The simulation system operation unit is used for operating the simulation instrument of the resectoscope, and completing the operation steps of the corresponding operation in the virtual scene;

[0012] The simulation system operation effect unit is used for showing the operation effect;

[0013] The simulation system score evaluation unit is used for automatically generating a simulation training score evaluation table after the simulation training is completed.

[0014] As a further scheme of the present application, in the preset model scene unit, the training scene includes a urinary surgery resectoscope 3D model and a gynecological surgery resectoscope 3D model; wherein,

[0015] The operation object of the urinary surgery resectoscope model includes: a urethra and urethral mucosa mapping module, a prostate and layered tissue module, a bladder and bladder triangle area, right lateral wall, anterior wall, left lateral wall and posterior wall module, and a ureteral ridge and ureteral orifice module; wherein, the prostate and layered tissue module includes: urethral mucosa, hyperplasia layer, surgical coating layer and normal prostate tissue;

[0016] The operation object of the gynecological surgery resectoscope model includes: a cervical orifice, a cervical and cervical canal module, a uterine cavity module, and a bilateral fallopian tube module; wherein, the uterine cavity module includes: an endometrial layer, a muscle layer and a serous layer.

[0017] As a further scheme of the present application, in the simulation system guiding prompt unit,

[0018] The process prompt is used for providing operation process guidance in the form of text, graphics and voice broadcast according to training design, so as to help the operator to independently complete the training;

[0019] The operation prompt is used for providing specific action prompts in the training process.

[0020] A method for training system of virtual simulation resectoscope operation, comprising the following steps:

[0021] S1, training scene and operation object construction: according to the clinical human structure, the training scene and the corresponding operation object are constructed, and different lesions are set in different positions in the training scene according to different cases, and the real operation instrument is associated with the training scene and the corresponding operation object;

[0022] S2, preoperative preparation and simulation of surgical instrument selection: the operator enters the training system, and loads the training scene; then according to the prompt guide carries out the related preoperative preparation operation, and selects the simulation surgical instrument; according to the different cases, the simulation instrument includes: monopolar electrocision ring, bipolar electrocision ring, rolling ball electrode, needle electrode, holmium laser fiber, aspirator and pulverizer;

[0023] S3, simulation of surgical operation: the operator uses the real conventional endoscope to check according to the guide prompt, and views the lesion position and shape on the operation object through the simulation endoscope; the operator then operates the real electrocision mirror, and cuts the lesion tissue in the virtual scene through the electrocision ring of the simulation electrocision mirror; meanwhile, the simulation tactile and visual feedback are provided to the operator, and the data of the real surgical instrument and the data of each operation action are collected; for the operation failure, the corresponding clinical effect is simulated;

[0024] S4, simulation training evaluation: the operator carries out the open operation simulation operation according to the guide prompt; the system makes real-time operation judgment, if there is error operation and operation failure, the real-time judgment and error prompt are given, and how to solve the current error is prompted, when the operator completes the operation process in sequence, the training system prompts to complete the simulation training, the operator exits the training, the system scores and evaluates each operation process, and generates a simulation training score evaluation table automatically according to the operation condition.

[0025] As a further scheme of the application: in the S3 step, the data of the real surgical instrument includes the position depth, moving speed, moving direction and moving amplitude of the surgical instrument; and these data are used to judge whether the surgical instrument moves too fast or too deep to affect the safety of the patient; and whether the operator is skilled in using the surgical instrument.

[0026] As a further scheme of the application: in the S3 step, the data of the operation action includes the cutting position and cutting thickness; whether the cutting depth reaches the operation requirement, whether the important tissue is cut, and whether the bleeding is caused by cutting the blood vessel position are judged.

[0027] As a further scheme of the application: in the S4 step, the simulation training score evaluation table includes whether the lesion has been removed according to the requirement, whether the important tissue is cut, whether the bleeding is caused, whether the hemostasis has been performed according to the requirement, the error number in the operation process, the score of each operation process and the total score.

[0028] In the S4 step, the generation method of the simulation training score evaluation table is as follows:

[0029] S41, the scoring table is imported into the system through a conversion program, a one-to-one correspondence between the scoring code and the scoring data is established, and saved to the database;

[0030] S42, when entering the simulation training, automatically loading the score data related to the training, and recording the score code corresponding to the score during the training process;

[0031] S43, when ending the training, finding the corresponding complete information according to the recorded score code, and generating a specific score result report.

[0032] Compared with the prior art, the beneficial effects of the present application are:

[0033] The present application constructs the training scene and the corresponding operation object, and completes the simulation training of the electric resection mirror operation in the virtual scene through the guidance prompt, and gives a prompt when there is an operation error or failure in the middle, and displays a detailed simulation training performance evaluation table after the training is completed; the operator can carry out targeted training according to his own weak points, and the training effect is better; and it is not limited by manpower, material resources and site, and the operator can carry out self-training without the guidance of others, which is suitable for daily development; in addition, it also has outstanding value in clinical teaching, and the teaching teacher can apply rich virtual case examples to carry out clinical teaching and teach operation methods, and the students can carry out synchronous simulation training. And also can carry out clinical case discussion and practice through 3D model. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a simulation effect diagram of a virtual simulation electric resection mirror operation training system. DETAILED DESCRIPTION

[0035] In the embodiment of the present application, a virtual simulation electric resection mirror operation training system comprises a preset model scene unit, a simulation system configuration unit, a simulation system guidance prompt unit, a simulation system operation unit, a simulation system operation effect unit and a simulation system performance evaluation unit.

[0036] The preset model scene unit is used for constructing the training scene and the corresponding operation object;

[0037] The simulation system configuration unit is used for loading and displaying the training scene and the corresponding operation object, and selecting the simulation surgical instrument;

[0038] The simulation system guidance prompt unit is used for providing process prompts, operation prompts and error prompts;

[0039] The simulation system operation unit is used for operating the simulation instrument of the electric resection mirror, and completing the operation steps of the corresponding operation in the virtual scene;

[0040] The simulation system operation effect unit is used to show operation effects; for example, force feedback effects when cutting tissue or hitting a wall, bubble or electrotome ring energization effects when cutting, bleeding effects when cutting a blood vessel, the appearance of blood flow in liquid, blood diffusion after hemostasis, residual ends after cutting, burning effects at the cutting surface, and bubble accumulation at the top of the bladder and the anterior wall of the uterus;

[0041] The simulation system performance evaluation unit is used to automatically generate a simulation training performance evaluation table after the simulation training is completed.

[0042] Preferably, in the preset model scene unit, the training scene includes a urological electrotome mirror surgery 3D model and a gynecological electrotome mirror surgery 3D model; wherein,

[0043] The operation objects of the urological electrotome mirror surgery model include: a urethra and urethral mucosa mapping module, a prostate and layered tissue module, a bladder and bladder triangle, right lateral wall, anterior wall, left lateral wall, and posterior wall module, and a ureteral ridge and ureteral orifice module; wherein, the prostate and layered tissue module includes urethral mucosa, hyperplasia layer, surgical coating layer, and normal prostate tissue.

[0044] The operation objects of the gynecological electrotome mirror surgery model include: a cervical orifice, a cervix and cervical canal module, a uterine cavity module, and a bilateral fallopian tube module; wherein, the uterine cavity module includes an endometrial layer, a muscular layer, and a serous layer.

[0045] Preferably, in the simulation system guidance prompt unit,

[0046] The flow prompt is used to provide operation flow guidance in the form of text, graphics, and voice broadcast according to the training design, thereby helping the operator to independently complete the training;

[0047] The operation prompt is used to provide specific action prompts during the training, such as voice broadcast: please insert the endoscope to check the urethral bulb, external sphincter, urethral membrane, urethral crest, or prostate, and the operator can perform the corresponding action.

[0048] A method of a virtual simulation electrotome mirror surgery training system, comprising the following steps:

[0049] S1, training scene and operation object construction: training scene and corresponding operation object are constructed according to clinical human structure, and different lesions are set in different positions in the training scene according to different cases, such as setting hyperplasia on the prostate and layered tissue module; setting myoma in the lower part of the uterine cavity module; setting polyp in the endometrial layer; associating real surgical instruments with the training scene and corresponding operation object; the specific method is that after importing triangular mesh data, the software uses tetrahedral partition algorithm based on Delaunay partition, first converts the surface mesh into tetrahedral volume mesh, and then sets different layers of soft tissue according to the elastic modulus, rigidity coefficient, heat dissolution coefficient and other parameters of the soft tissue;

[0050] The simulated finite element simulation solver based on Lagrange multiplier is selected to show the deformation effect of tissues with different elasticity and hardness.

[0051] S2, preoperative preparation and simulation of surgical instrument selection: the operator enters the training system and loads the training scene; then according to the prompt guide, the relevant preoperative preparation operation is carried out, and the simulation surgical instrument is selected, such as conventional endoscope, electric resection mirror; the collision body of different instruments is set, which can be collided and interacted with the above software in the scene, and the calculation is carried out through the solver in S1, so as to simulate the collision of instruments and soft tissue in the real medical scene.

[0052] S3, simulation of surgical operation: the operator checks according to the guide prompt, and views the lesion position and morphology on the operation object through the simulation endoscope; the operator operates the real electric resection mirror, and cuts the lesion tissue in the virtual scene through the electric cutting ring of the simulation electric resection mirror; the cutting function of soft tissue is realized by the Boolean operation of virtual instruments and scene tissues in the software, the correctness of electric coagulation, electric cutting and other positions is judged by the collision position and intensity of virtual instruments and virtual soft tissue, and the diffusion effect of blood is rendered to express the consistency with the real scene, at the same time, the operator is provided with simulation of tactile and visual feedback, at the same time, the data of real surgical instruments and the data of each operation action are collected; for operation failure, the corresponding clinical effect is simulated, such as cutting too deep to cause uterine bleeding, uterine perforation, ureteral orifice occlusion, bladder perforation and arterial bleeding, so as to facilitate the demonstration of errors in clinical teaching; as shown in Figure 1

[0053] ​S4, simulation training evaluation: the operator performs open surgery simulation operation according to the guidance prompt; the system makes real-time operation judgment, and if there is an error operation and operation failure, there will be real-time judgment and error prompt, and prompt how to solve the current error, when the operator completes the operation process in sequence, the training system prompts to complete the simulation training, the operator exits the training, the system scores and evaluates each operation process, and automatically generates a simulation training score evaluation table according to the operation condition; the operator can check the score and operation record through the simulation training score evaluation table to judge whether his technical level has reached the operation requirement.

[0054] Preferably, in the S3 step, the data of the real surgical instrument includes the position depth, movement speed, movement direction and movement amplitude of the surgical instrument; and the data is used to judge whether the movement of the surgical instrument is too fast or too deep to affect the safety of the patient; and whether the operator is skilled in using the surgical instrument.

[0055] Preferably, in the S3 step, the data of the operation action includes the cutting position and cutting thickness; and the cutting depth is judged whether it meets the operation requirement, whether it cuts important tissues, and whether it cuts the blood vessel position to cause bleeding.

[0056] Preferably, in the S4 step, the simulation training score evaluation table includes whether the lesion has been removed according to the requirement, whether important tissues are cut, whether bleeding is caused, whether hemostasis has been performed according to the requirement, the error number in the operation process, the score of each operation process and the total score.

[0057] Preferably, in the S4 step, the simulation training score evaluation table is generated by the following method:

[0058] S41, the score table is imported into the system through a conversion program, a one-to-one correspondence between the score code and the score data is established, and saved to the database;

[0059] S42, when entering the simulation training, the score data related to this training is automatically loaded, and the score code corresponding to the score is recorded during the training process;

[0060] S43, when the training is completed, the complete information corresponding to the item is found according to the recorded score code, such as the score, description, etc., and a specific score result report is generated.

[0061] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A training method based on a virtual simulation resectoscope surgery training system, characterized in that: The virtual simulation resectoscope surgery training system includes: a preset model scene unit, a simulation system configuration unit, a simulation system guidance prompt unit, a simulation system operation unit, a simulation system operation effect unit and a simulation system performance evaluation unit; The preset model scene unit is used to construct a training scene and corresponding operation objects; The simulation system configuration unit is used to load and display training scenarios and corresponding operation objects, and select simulated surgical instruments; The simulation system guidance prompt unit is used to provide process prompts, operation prompts and error prompts; The simulation system operation unit is used to operate the simulated instrument of the resectoscope and complete the operation steps of the corresponding surgery in the virtual scene; The simulation system operation effect unit is used to display the operation effect; The simulation system performance evaluation unit is used to automatically generate a simulation training performance evaluation table after the simulation training is completed; In the preset model scene unit, the training scenes include a 3D model of urological resectoscope surgery and a 3D model of gynecological resectoscope surgery; wherein, The urology resectoscope model operates on the following objects: urethra and urethral mucosa mapping module, prostate and layered tissue module, bladder and bladder trigone, right side wall, anterior wall, left side wall and posterior wall modules, interureteral ridge and ureteral orifice module; the prostate and layered tissue module includes urethral mucosa, hyperplastic layer, surgical cover and normal prostate tissue; The operating objects of the gynecological resectoscope surgery model include: the external cervical os, cervix and cervical canal module, uterine cavity module, and bilateral fallopian tube module; the uterine cavity module includes: the endometrial layer, myometrium, and serosal layer; The training method comprises the following steps: S1. Construction of training scenarios and operation objects: Build training scenarios and corresponding operation objects based on the clinical human body structure. Set different lesions at different locations in the training scenarios according to different cases. Associate real surgical instruments with the training scenarios and corresponding operation objects. S2. Preoperative preparation and selection of simulated surgical instruments: The operator enters the training system and loads the training scenario. The operator then follows the prompts to perform relevant preoperative preparations and select simulated surgical instruments. S3. Simulated surgical operation: The operator follows the guidance prompts and uses a real conventional endoscope to perform an examination. The operator also uses the simulated endoscope to check the location and morphology of the lesion on the object being operated. The operator then uses the real resectoscope and the cutting ring of the simulated resectoscope to cut the lesion tissue in the virtual scene. Simultaneously, the operator is provided with simulated tactile and visual feedback, and data from the real surgical instruments and each operation action is collected. The corresponding clinical effects of any operational errors are simulated. S4. Simulation training evaluation: The operator performs open surgical simulation operations according to the guidance prompts; the system makes real-time operation judgments. If there are incorrect operations and operational errors, there will be real-time judgments and error prompts, and prompts on how to solve the current errors. When the operator completes the surgical operation process in sequence, the training system prompts that the simulation training is completed. After the operator exits the training, the system scores and evaluates each operation process, and automatically generates a simulation training performance evaluation table based on the operation situation.

2. The training method based on the virtual simulation resectoscope surgery training system according to claim 1, characterized in that: In the simulation system boot prompt unit, Process prompts are used to provide operation process guidance in the form of text, graphics and voice broadcasts according to the training design, thereby helping operators to complete the training independently; Operation prompts are used to provide specific action prompts during training.

3. The training method based on the virtual simulation resectoscope surgery training system according to claim 1, characterized in that: In the S3 step, the data of the actual surgical instrument include the position depth, movement speed, movement direction and movement amplitude of the surgical instrument; these data are used to determine whether the surgical instrument moves too fast or too deep, thereby affecting the patient's safety; and to determine whether the operator is proficient in using the surgical instrument.

4. The training method based on the virtual simulation resectoscope surgery training system according to claim 1, characterized in that: In step S3, the data of the operation action includes the cutting position and cutting thickness, so as to judge whether the cutting depth meets the surgical requirements, whether important tissues are cut, and whether bleeding occurs when the blood vessels are cut.

5. The training method based on the virtual simulation resectoscope surgery training system according to claim 1, characterized in that: In step S4, the simulation training performance evaluation table includes: whether the lesion has been removed as required, whether important tissues have been cut, whether bleeding has occurred, whether bleeding has been stopped as required, the number of errors in the operation process, the score of each operation process and the total score.

6. The training method based on the virtual simulation resectoscope surgery training system according to claim 1, characterized in that: In step S4, the method for generating the simulation training performance evaluation table is as follows: S41. Import the scoring table into the system through a conversion program, establish a one-to-one correspondence between the scoring code and the scoring data, and save it to the database; S42. When entering simulation training, automatically load the scoring data related to this training and record the scoring code corresponding to the score during the training process; S43. When the training is finished, the complete information corresponding to the item is found according to the recorded scoring code, and a specific scoring result report is generated.

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