A gynecological tumor brachytherapy simulation training and teaching device

Abstract

The present invention provides a gynecological tumor close-range radiotherapy simulation training teaching equipment, which relates to the field of simulation training technology, including an operating table and an applicator body. A simulation mechanism is provided on the top of the operating table, and the simulation mechanism includes a human body model. The inner surface of the human body model is fixedly connected with a lower model and an end model. The lower model and the end model are fixedly connected, and the outer surface of the lower model is slidably connected with two upper models. The valve design of the water inlet of each elastic bag of the present invention makes it possible to simulate tumors in different positions. The trainee can practice repeatedly for different tumor positions, quickly become familiar with the operation path of the applicator in the complex human body structure, greatly improve the accuracy of practical operation, simulate the process of tumor shrinkage due to heat, and realistically restore the actual changes of the tumor during radiotherapy, so as to help the trainee intuitively understand the principles of radiotherapy, master the core skills of adjusting the applicator parameters according to tumor changes, and effectively shorten the adaptation period from theoretical learning to clinical practice.

Description

Technical Field

[0001] The present invention relates to the technical field of simulation training, and in particular to a gynecological tumor brachytherapy simulation training and teaching device. Background Art

[0002] Gynecological tumors pose a serious threat to women's health. Brachytherapy, with its advantages of precisely delivering radiation doses to the tumor site while minimizing damage to surrounding normal tissue, has become an important treatment option. With technological advancements, some simulation training devices have emerged, but they still have many shortcomings. Existing simulation devices often struggle to accurately simulate the state of tumors in different locations, failing to meet diverse training needs. This makes it difficult for trainees to fully familiarize themselves with the operating path of the applicator within the complex human anatomy, and practical accuracy is difficult to ensure. Furthermore, most devices cannot realistically reproduce the dynamic changes of tumors during radiotherapy, making it difficult for trainees to effectively integrate theoretical knowledge with practical operations, increasing the difficulty of transitioning from theoretical learning to clinical practice. Furthermore, during simulation training, there is a lack of effective temperature regulation mechanisms. When simulated radiotherapy generates heat, it can easily affect the performance of the simulated tumor material, resulting in distorted simulation results. This not only reduces the scientificity and accuracy of simulation training, but also shortens the service life of key equipment components and increases equipment maintenance costs. Therefore, we propose a gynecological tumor brachytherapy simulation training and teaching device. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and to propose a gynecological tumor brachytherapy simulation training and teaching equipment.

[0004] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a gynecological tumor close-range radiotherapy simulation training and teaching equipment, comprising an operating table and an applicator body, a simulation mechanism is provided on the top of the operating table, the simulation mechanism includes a human body model, the inner surface of the human body model is fixedly connected with a lower model and an end model, the two upper models are rotatably connected to the end model, the lower model and the end model are fixedly connected, the outer surface of the lower model is slidably connected with two upper models, the inner surface of the lower model is fixedly connected with a plurality of horizontal support tubes and vertical support tubes, the horizontal support tubes and the vertical support tubes are connected, the outer surface of the vertical support tube is connected with an elastic bag, the inner surface of the elastic bag is filled with a simulated tumor, the inner surface of the lower model near the left side is fixedly connected with a water storage box, the water storage box is connected with a plurality of horizontal support tubes, and the outer surface of the water storage box near the left side is connected with a water supply pipe.

[0005] Preferably, the human body model is fixedly mounted on the upper surface of the operating table, and the elastic bag is slidably connected to the upper model.

[0006] Preferably, a teaching mechanism is provided inside the human body model, and the teaching mechanism includes a first positioning rod, the outer surface of the first positioning rod is rotatably connected to the support tube through a bearing, the outer surfaces of the first positioning rod and the support tube are fixedly connected to the first rotating plate, the outer surfaces of the two upper models are fixedly connected to the outer shell, the outer surfaces of the two outer shells near the top are fixedly connected to the second positioning rod, the outer surfaces of the two second positioning rods are rotatably connected to two second rotating plates, a third rotating plate is rotatably connected between the multiple second rotating plates and the first rotating plate, the centers of the multiple third rotating plates are rotatably connected to the third positioning rod, and the junction of the second rotating plate and the third rotating plate is rotatably connected to a positioning tube.

[0007] Preferably, the outer surfaces of the two shells are fixedly connected to limit rails, the limit rails are fixedly connected to the second positioning rod, and the third positioning rod is slidably connected to the limit rails.

[0008] Preferably, the outer surface of the first positioning rod is fixedly connected to the first bevel gear, the outer surface of the support cylinder is fixedly connected to the second bevel gear, the inner surface of the human body model is fixedly connected to the mounting plate, the outer surface of the mounting plate is rotatably connected to the rotating rod through a bearing, the outer surface of the rotating rod is fixedly connected to the third bevel gear, and the third bevel gear is meshed with the first bevel gear and the second bevel gear respectively.

[0009] Preferably, a motor is installed on the inner surface of the bottom of the human body model, and the output end of the motor is fixedly connected to the rotating rod.

[0010] Preferably, a cooling mechanism is further provided inside the mannequin, the cooling mechanism comprising an air outlet pipe, the outer surface of the air outlet pipe is connected to a diverter pipe, the diverter pipe is connected to a positioning pipe, the outer surface of the positioning pipe is connected to an air supply pipe, the inner surface of the air supply pipe is slidably connected to a sliding cylinder, the other end of the sliding cylinder is connected to a nozzle, a heat dissipation channel is opened on the lower surface of the mannequin, a fan is installed on the inner surface of the heat dissipation channel, and the air outlet pipe is connected to the heat dissipation channel.

[0011] Preferably, the outer surfaces of the two shells, the lower model and the upper model are provided with limiting grooves, and the air delivery pipe and the sliding cylinder are respectively slidably connected to the limiting grooves.

[0012] Preferably, the outer surface of the sliding cylinder is fixedly connected to a limiting plate, and the limiting plate is slidably connected to the limiting groove.

[0013] Preferably, a heater and a visual probe are fixedly connected to the front end of the applicator body.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are

[0015] 1. The present invention proposes a gynecological tumor brachytherapy simulation training and teaching equipment. Its simulation mechanism injects water into the elastic bag through a water storage box and a support tube, and utilizes the characteristics of polymer materials containing mixed hydrophilic and hydrophobic groups to achieve simulated tumor expansion and contraction. The valve design of the water inlet of each elastic bag enables simulation of tumors in different locations. Trainees can practice repeatedly for different tumor locations, quickly become familiar with the operation path of the source device in the complex human structure, greatly improve the accuracy of practical operation, simulate the process of tumor shrinkage due to heat, and realistically restore the actual changes of tumors during radiotherapy, helping trainees to intuitively understand the principles of radiotherapy and master the core skills of adjusting the source device parameters according to tumor changes, effectively shortening the adaptation period from theoretical learning to clinical practice.

[0016] 2. The present invention proposes a gynecological tumor brachytherapy simulation training and teaching equipment. At the end of the training, the human body model opening mechanism realizes the sliding opening of the upper model relative to the lower model through the coordinated operation of the motor, bevel gear, rotating plate and other components. On the one hand, the trainee can directly observe the final state of the simulated tumor, conduct self-reflection and summary based on the operations during the training process, and promptly discover deficiencies in the operation. On the other hand, the teacher can explain the change mechanism of the tumor during radiotherapy and the operation details of the source device based on actual cases based on the internal conditions of the simulated human body structure after opening, thus concretizing abstract knowledge. Compared with traditional teaching that relies on two-dimensional pictures or videos, this intuitive teaching method greatly improves students' knowledge absorption rate and significantly enhances teaching efficiency and quality.

[0017] 3. The present invention proposes a gynecological tumor close-range radiotherapy simulation training and teaching equipment. When the heater is working, the temperature of the simulated tumor area increases, and the fan drives the external low-temperature air to be ejected from the nozzle through a series of pipes. At the same time, as the shell opens, the positioning tube changes position under the drive of the transmission mechanism, cleverly pulling the nozzle to move synchronously, adjusting the heat dissipation area and angle in real time, achieving full coverage of heat dissipation around the heater and the simulated tumor area, and exchanging heat with the heat to avoid changes in the performance of the simulated tumor material due to long-term high temperature, ensuring that the simulated tumor can always respond according to the preset temperature and morphological change rules, ensuring the scientificity and accuracy of the simulation training, and making the training results true and reliable. Secondly, the stable temperature environment extends the service life of the internal components of the equipment, especially temperature-sensitive components, and reduces equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a schematic diagram of the main structure of a gynecological tumor brachytherapy simulation training and teaching device;

[0019] Figure 2 The present invention provides a schematic diagram of a partial top view and cross-section of a gynecological tumor brachytherapy simulation training and teaching device;

[0020] Figure 3 The present invention provides a partial front view cross-sectional structural diagram of a gynecological tumor brachytherapy simulation training and teaching device;

[0021] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 5 The present invention provides a schematic diagram of the partial structure of the gas pipe of a gynecological tumor brachytherapy simulation training and teaching device;

[0023] Figure 6 This invention proposes a schematic diagram of the partial structure of a water storage box for a gynecological tumor brachytherapy simulation training and teaching device;

[0024] Figure 7 The present invention provides a schematic diagram of the local structure of a limiting groove of a gynecological tumor brachytherapy simulation training and teaching device.

[0025] Legend: 1. Operating table; 2. Simulation mechanism; 201. Human body model; 202. Lower model; 203. End model; 204. Upper model; 205. Horizontal support tube; 206. Vertical support tube; 207. Elastic bag; 209. Water storage box; 210. Water pipe; 3. Teaching mechanism; 301. First positioning rod; 302. Support cylinder; 303. First rotating plate; 304. Housing; 305. Second positioning rod; 306. Second rotating plate; 307. Third rotating plate; 308. Positioning tube; 4. Cooling mechanism; 401. Air outlet pipe; 402. Diverter pipe; 403. Air supply pipe; 404. Sliding cylinder; 405. Nozzle; 406. Fan; 5. Applicator body; 6. Limit rail; 7. First bevel gear; 8. Second bevel gear; 9. Mounting plate; 10. Rotating rod; 11. Third bevel gear; 12. Motor; 13. Limit groove; 14. Limit plate; 15. Heater; 16. Visual probe. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figure 1-Figure 7As shown, a gynecological tumor brachytherapy simulation training and teaching device includes an operating table 1 and an applicator body 5. A simulation mechanism 2 is provided on the top of the operating table 1. The simulation mechanism 2 includes a human body model 201. The inner surface of the human body model 201 is fixedly connected to a lower model 202 and an end model 203. Two upper models 204 are rotatably connected to the end model 203. The lower model 202 is fixedly connected to the end model 203. The outer surface of the lower model 202 is slidably connected to the two upper models 204 and the lower model 202. The inner surface of the lower model 202 is fixedly connected with multiple horizontal support tubes 205 and vertical support tubes 206, and the horizontal support tubes 205 and the vertical support tubes 206 are connected. The outer surface of the vertical support tube 206 is connected with an elastic bag 207, and the inner surface of the elastic bag 207 is filled with a simulated tumor. The inner surface of the lower model 202 near the left side is fixedly connected with a water storage box 209, which is connected with the multiple horizontal support tubes 205. The outer surface of the water storage box 209 near the left side is connected with a water supply pipe 210.

[0029] The effect is that a handheld applicator enters the interior of the human body model 201 through the end model 203 and injects water into the water storage box 209. The water flows into the elastic bag 207 through the connected horizontal support tube 205 and vertical support tube 206. Each elastic bag 207 is equipped with a valve at the water inlet, which can be used to inject water into a specific area of ​​the elastic bag 207, causing the elastic bag 207 to expand, and the simulated tumor inside also expands accordingly. When the simulated tumor is heated, the hydrophobic effect of the material is enhanced, and the absorbed water molecules are quickly discharged and returned to the vertical support tube 206, causing the simulated tumor to shrink rapidly, simulating the changes in the tumor after being irradiated during radiotherapy.

[0030] like Figure 1-Figure 7As shown, the human body model 201 is fixedly mounted on the upper surface of the operating table 1, the elastic bag 207 is slidably connected to the upper model 204, and a teaching mechanism 3 is provided inside the human body model 201. The teaching mechanism 3 includes a first positioning rod 301, the outer surface of the first positioning rod 301 is rotatably connected to the support cylinder 302 through a bearing, the outer surfaces of the first positioning rod 301 and the support cylinder 302 are fixedly connected to a first rotating plate 303, the outer surfaces of the two upper models 204 are fixedly connected to the outer shell 304, the outer surfaces of the two outer shells 304 near the top are fixedly connected to the second positioning rod 305, the outer surfaces of the two second positioning rods 305 are rotatably connected to two second rotating plates 306, a plurality of second rotating plates 306 are rotatably connected to the first rotating plate 303, and the centers of the plurality of third rotating plates 307 are rotatably connected to the outer shell 304. It is connected to a third positioning rod, and a positioning tube 308 is rotatably connected at the intersection of the second rotating plate 306 and the third rotating plate 307. The outer surfaces of the two shells 304 are fixedly connected to the limiting rail 6, the limiting rail 6 is fixedly connected to the second positioning rod 305, and the third positioning rod is slidably connected to the limiting rail 6. The outer surface of the first positioning rod 301 is fixedly connected to the first bevel gear 7, and the outer surface of the support cylinder 302 is fixedly connected to the second bevel gear 8. The inner surface of the human body model 201 is fixedly connected to the mounting plate 9, and the outer surface of the mounting plate 9 is rotatably connected to the rotating rod 10 through a bearing. The outer surface of the rotating rod 10 is fixedly connected to the third bevel gear 11, and the third bevel gear 11 is respectively meshed with the first bevel gear 7 and the second bevel gear 8. The inner surface of the bottom of the human body model 201 is installed with a motor 12, and the output end of the motor 12 is fixedly connected to the rotating rod 10.

[0031] The effect is that the output end of the motor 12 drives the rotating rod 10 to rotate, and the third bevel gear 11 on the outer surface of the rotating rod 10 rotates accordingly. Since the third bevel gear 11 is meshed with the first bevel gear 7 and the second bevel gear 8 respectively, the first bevel gear 7 and the second bevel gear 8 will drive the first positioning rod 301 and the support cylinder 302 to rotate in the opposite direction, and the first positioning rod 301 and the first rotating plate 303 on the outer surface of the support cylinder 302 also rotate together, and the plurality of third rotating plates 307 cooperate with the second rotating plate 306 rotatably connected to the second positioning rod 305 As the third rotating plate 307 rotates, the second rotating plate 306 will rotate around the second positioning rod 305. Because the outer shell 304 fixed on the outer surface of the two upper models 204 is connected to the second rotating plate 306, the outer shell 304 will change position as the second rotating plate 306 rotates, thereby driving the upper model 204 to slide open relative to the lower model 202. During this process, the third positioning rod is driven by multiple third rotating plates 307 to slide along the limiting rail 6, ensuring the stability and accuracy of the opening process of the upper model 204.

[0032] like Figure 1-Figure 7As shown, the interior of the mannequin 201 is further provided with a cooling mechanism 4, which includes an air outlet pipe 401. The outer surface of the air outlet pipe 401 is connected to a diverter pipe 402, which is connected to the positioning pipe 308. The outer surface of the positioning pipe 308 is connected to an air delivery pipe 403. The inner surface of the air delivery pipe 403 is slidably connected to a sliding cylinder 404. The other end of the sliding cylinder 404 is connected to a nozzle 405. The lower surface of the mannequin 201 is provided with a heat dissipation vent. A fan 406 is installed on the inner surface of the heat dissipation channel, and the air outlet pipe 401 is connected to the heat dissipation channel. The outer surfaces of the two shells 304, the lower model 202 and the upper model 204 are provided with limiting grooves 13, the air supply pipe 403 and the sliding cylinder 404 are respectively slidably connected to the limiting grooves 13, the outer surface of the sliding cylinder 404 is fixedly connected to the limiting plate 14, the limiting plate 14 is slidably connected to the limiting groove 13, and the front end of the source body 5 is fixedly connected to the heater 15 and the visual probe 16.

[0033] The effect is that the fan 406 starts, sucks in the outside air and sends it into the air outlet pipe 401. The air flows in the air outlet pipe 401, enters the positioning pipe 308 through the diversion pipe 402, and is then transported to the sliding cylinder 404 through the air supply pipe 403, and finally ejected by the nozzle 405. The ejected low-temperature air can directly act on the area near the heater 15, exchange heat with the heat generated by the heater 15, and reduce the temperature of the area. During the heat exchange process, the hot air rises and is discharged to the outside of the equipment. At the same time, because the positioning pipe 308 moves during the process of opening the cover, heat can be dissipated to multiple positions.

[0034] Brief operation steps of gynecological tumor brachytherapy simulation training teaching equipment:

[0035] Preparation stage: Water is injected into the horizontal support tube 205 and the vertical support tube 206 through the water storage box 209. The water is controlled by the water inlet valve to flow into the designated elastic bag 207. The hydrophilic and hydrophobic mixed group polymer material in the elastic bag 207 absorbs water and expands at low temperature, simulating the existence state of a tumor in the human body.

[0036] Simulation training: The trainee holds the applicator and enters the human body model 201 through the end model 203. Based on the image information recorded by the visual probe 16 at the front end of the applicator body 5, a simulated surgical operation is performed. When the heater 15 at the front end of the applicator approaches the simulated tumor and the temperature exceeds 32°C, the hydrophobic effect of the polymer material is enhanced, water molecules are expelled, and the simulated tumor shrinks, simulating the changes in the tumor after being irradiated during radiotherapy.

[0037] Observation results: After the training, the upper part of the human model 201 is turned over and the internal motor 12 of the human model 201 is started. The motor 12 drives the rotating rod 10 to rotate. Through the transmission of the bevel gear and the rotating plate, the shell 304 drives the upper model 204 to slide open relative to the lower model 202. The trainee can directly observe the state of the simulated tumor inside and understand the effect of the radiotherapy simulation training.

[0038] Temperature regulation: After the heater 15 is operating or when the housing 304 is opened, the fan 406 in the heat dissipation channel on the lower surface of the human body model 201 is started, sucking in low-temperature air from the outside, passing through the air outlet pipe 401, the diversion pipe 402, the positioning pipe 308, and the air supply pipe 403, and then ejected by the nozzle 405. The hot air is discharged outside the device. The positioning pipe 308 moves during the cover opening process to achieve multi-position heat dissipation.

[0039] Working principle: the trainee enters the interior of the human body model 201 through the end model 203 by holding the source applicator. The image information recorded by the visual probe 16 at the front end of the source applicator body 5 facilitates the trainee to perform simulated surgery. The core of the simulation mechanism 2 is to simulate the formation and change of the tumor area. Water is injected into the water storage box 209. The water flows into the elastic bag 207 through the connected horizontal support tube 205 and the vertical support tube 206. A valve is provided at the water inlet of each elastic bag 207, which can be used to inject water into a certain area of ​​the elastic bag 207. The elastic bag 207 is filled with a polymer material containing a mixed hydrophilic and hydrophobic group, such as poly N-isopropylacrylamide PNIPAM. Under low temperature environment, the hydrophilic group dominates, the material absorbs water, and the elastic bag 2 07 expands, and the internal simulated tumor also expands, simulating the existence state of the tumor in the human body. It can simulate tumors in different positions, which is convenient for targeted practice. When the heater 15 at the front end of the applicator body 5 is close to the simulated tumor, the heat generated by the heater 15 is transferred to it. When the temperature exceeds the lower critical melting temperature of the polymer material, about 32°C, the hydrophobic effect of the material is enhanced, and the absorbed water molecules are quickly discharged and returned to the vertical support tube 206. The simulated tumor shrinks quickly, simulating the changes of the tumor after radiation during radiotherapy, providing trainees with a simulation scene of tumor changes close to reality, and at the same time, it is convenient to check the training results after training. At the same time, the lower model 202, the upper model 204 and the end model 203 in the human body model 201 constitute a simulation The human body's internal structural space, the horizontal support tube 205 and the vertical support tube 206 ensure structural stability and water circulation. When the internal tumor situation needs to be observed after the training, the human body model 201 is divided into two parts, upper and lower, and hinged by a hinge. When the internal training results need to be checked, it is only necessary to open the upper half of the human body model 201 and start the motor 12 inside the human body model 201. The output end of the motor 12 drives the rotating rod 10 to rotate, and the third bevel gear 11 on the outer surface of the rotating rod 10 rotates accordingly. Since the third bevel gear 11 is respectively engaged with the first bevel gear 7 and the second bevel gear 8, the first bevel gear 7 and the second bevel gear 8 will drive the first positioning rod 301 and the support cylinder 302 to rotate in the opposite direction. The first positioning rod 301 and the support cylinder 302 are rotated in the opposite direction. The first rotating plate 303 on the outer surface of 02 also rotates together, and the multiple third rotating plates 307 cooperate with the second rotating plate 306 rotatably connected to the second positioning rod 305. As the third rotating plate 307 rotates, the second rotating plate 306 will rotate around the second positioning rod 305. Because the outer shell 304 fixed on the outer surface of the two upper models 204 is connected to the second rotating plate 306, the outer shell 304 will change its position as the second rotating plate 306 rotates, thereby driving the upper model 204 to slide open relative to the lower model 202. During this process, the third positioning rod is driven by the multiple third rotating plates 307 to slide along the limiting rail 6 to ensure the stability and accuracy of the opening process of the upper model 204. After the upper model 204 is opened,The trainee can directly observe the state of the internal simulated tumor and intuitively understand the effect of the radiotherapy simulation training. The teacher can combine the internal situation of the simulated human body structure after opening to explain in detail to the students the changes of the tumor during radiotherapy, the key points of the applicator operation, etc., making the teaching process more intuitive and vivid, and improving the teaching effect. When the heater 15 at the front end of the applicator body 5 is working, it will release heat to the simulated tumor area, causing the temperature of the area to rise. After the simulated tumor recovers, there is still residual heat. In the process of opening the shell 304, the air in the heat dissipation channel on the lower surface of the human model 201 Fan 406 starts, drawing in relatively cool air from the outside and sending it into the outlet pipe 401. The air flows through the outlet pipe 401, passes through the diverter pipe 402, enters the positioning pipe 308, and is then transported to the sliding cylinder 404 through the air delivery pipe 403. Finally, it is ejected from the nozzle 405. The ejected cool air can directly act on the area near the heater 15, exchanging heat with the heat generated by the heater 15, lowering the temperature in that area. During the heat exchange process, the hot air rises and is discharged outside the device. At the same time, because the positioning pipe 308 moves during the lid opening process, it can dissipate heat in multiple locations.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A gynecological tumor brachytherapy simulation training and teaching device, comprising an operating table (1) and an applicator body (5), characterized in that: The top of the operating table (1) is provided with a simulation mechanism (2), the simulation mechanism (2) comprising a human body model (201), the inner surface of the human body model (201) being fixedly connected to a lower model (202) and an end model (203), the lower model (202) and the end model (203) being fixedly connected, the outer surface of the lower model (202) being slidably connected to two upper models (204), the two upper models (204) being rotatably connected to the end model (203), the inner surface of the lower model (202) being fixedly connected to a plurality of transverse support tubes (205 ) and the vertical support tube (206), the horizontal support tube (205) and the vertical support tube (206) are connected, the outer surface of the vertical support tube (206) is connected to an elastic bag (207), the interior of the elastic bag (207) is filled with a polymer material containing a hydrophilic and hydrophobic mixed group, the inner surface of the lower model (202) near the left side is fixedly connected to a water storage box (209), the water storage box (209) is connected to the plurality of horizontal support tubes (205), and the outer surface of the water storage box (209) near the left side is connected to a water pipe (210), The human body model (201) is fixedly mounted on the upper surface of the operating table (1); the elastic bag (207) is slidably connected to the upper model (204); a teaching mechanism (3) is provided inside the human body model (201); the teaching mechanism (3) comprises a first positioning rod (301); the outer surface of the first positioning rod (301) is rotatably connected to a support cylinder (302) via a bearing; the outer surfaces of the first positioning rod (301) and the support cylinder (302) are both fixedly connected to a first rotating plate (303); the outer surfaces of the two upper models (204) are both fixedly connected A shell (304) is provided, and the outer surfaces of the two shells (304) near the top are fixedly connected to second positioning rods (305), the outer surfaces of the two second positioning rods (305) are rotatably connected to two second rotating plates (306), a third rotating plate (307) is rotatably connected between the plurality of second rotating plates (306) and the first rotating plate (303), the centers of the plurality of third rotating plates (307) are rotatably connected to the third positioning rods, and a positioning tube (308) is rotatably connected to the intersection of the second rotating plate (306) and the third rotating plate (307).

2. The gynecological tumor brachytherapy simulation training and teaching device according to claim 1, characterized in that: The outer surfaces of the two housings (304) are fixedly connected to a limiting rail (6), the limiting rail (6) is fixedly connected to the second positioning rod (305), and the third positioning rod is slidably connected to the limiting rail (6).

3. The gynecological tumor brachytherapy simulation training and teaching device according to claim 1, characterized in that: The outer surface of the first positioning rod (301) is fixedly connected to a first bevel gear (7), the outer surface of the support cylinder (302) is fixedly connected to a second bevel gear (8), the inner surface of the human body model (201) is fixedly connected to a mounting plate (9), the outer surface of the mounting plate (9) is rotatably connected to a rotating rod (10) via a bearing, the outer surface of the rotating rod (10) is fixedly connected to a third bevel gear (11), and the third bevel gear (11) is meshed with the first bevel gear (7) and the second bevel gear (8), respectively.

4. The gynecological tumor brachytherapy simulation training and teaching device according to claim 1, characterized in that: A motor (12) is installed on the inner surface of the bottom of the human body model (201), and the output end of the motor (12) is fixedly connected to the rotating rod (10).

5. The gynecological tumor brachytherapy simulation training and teaching device according to claim 4, characterized in that: The interior of the human body model (201) is further provided with a cooling mechanism (4), the cooling mechanism (4) comprising an air outlet pipe (401), the outer surface of the air outlet pipe (401) being connected to a diverter pipe (402), the diverter pipe (402) being connected to a positioning pipe (308), the outer surface of the positioning pipe (308) being connected to an air supply pipe (403), the inner surface of the air supply pipe (403) being slidably connected to a sliding cylinder (404), the other end of the sliding cylinder (404) being connected to a nozzle (405), a heat dissipation channel being provided on the lower surface of the human body model (201), a fan (406) being installed on the inner surface of the heat dissipation channel, and the air outlet pipe (401) being connected to the heat dissipation channel.

6. The gynecological tumor brachytherapy simulation training and teaching device according to claim 5, characterized in that: The outer surfaces of the two shells (304), the lower mold (202) and the upper mold (204) are all provided with limiting grooves (13), and the air delivery pipe (403) and the sliding cylinder (404) are respectively slidably connected to the limiting grooves (13).

7. The gynecological tumor brachytherapy simulation training and teaching device according to claim 6, characterized in that: The outer surface of the sliding cylinder (404) is fixedly connected to a limiting plate (14), and the limiting plate (14) is slidably connected to the limiting groove (13).

8. The gynecological tumor brachytherapy simulation training and teaching device according to claim 1, characterized in that: A heater (15) and a visual probe (16) are fixedly connected to the front end of the source applicator body (5).

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