Gynecological tumor close-range radiotherapy simulation training teaching equipment

Abstract

The invention provides gynecological tumor close-range radiotherapy simulation training teaching equipment, and relates to the technical field of simulation training, the gynecological tumor close-range radiotherapy simulation training teaching equipment comprises an operation table and a source applicator body, the top of the operation table is provided with a simulation mechanism, the simulation mechanism comprises a human body model, and the inner surface of the human body model is fixedly connected with a lower model and an end part model; the lower model is fixedly connected with the end part model, the outer surface of the lower model is slidably connected with two upper models, the design of a valve of a water inlet of each elastic bag enables tumors at different positions to be simulated, and a trainer can do repeated practice aiming at different tumor positions and can be quickly familiar with an operation path of a source applicator in a complex human body structure; practical operation accuracy is greatly improved, the process of tumor heating retraction is simulated, actual changes of tumors in radiotherapy are realistically restored, a trainer is helped to visually understand the radiotherapy principle and master the core skills of adjusting source applicator parameters according to the changes of the tumors, and the adaptation period from theoretical learning to clinical practice is effectively shortened.

Description

Technical Field

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

[0002] As a disease that seriously threatens women's health, brachytherapy has become one of the important treatment methods due to its advantages of accurately delivering radiation dose at the tumor site and causing less damage to surrounding normal tissues. With the development of technology, some simulation training devices have emerged, but there are still many deficiencies. Existing simulation devices often have difficulty accurately simulating the states of tumors at different positions, unable to meet the diverse training needs, resulting in trainers being unable to comprehensively familiarize themselves with the operation paths of applicators in complex human structures, and it is difficult to guarantee the practical accuracy. At the same time, most devices cannot truly restore the dynamic changes of tumors during radiotherapy, making it difficult for trainers to effectively combine theoretical knowledge with actual operations, increasing the difficulty of transitioning from theoretical learning to clinical practice. In addition, during the simulation training process, there is a lack of an effective temperature regulation mechanism. When heat is generated during simulated radiotherapy, it is likely to affect the performance of the simulated tumor material, resulting in distorted simulation results, reducing the scientificity and accuracy of the simulation training, shortening the service life of the key components of the device, and increasing the device maintenance cost. Therefore, we propose a simulation training teaching device for brachytherapy of gynecological tumors. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems, and a simulation training teaching device for brachytherapy of gynecological tumors is proposed.

[0004] To achieve the above purpose, the present invention adopts the following technical solution: A simulation training teaching device for brachytherapy of gynecological tumors, including an operation console and an applicator body. A simulation mechanism is provided on the top of the operation console. The simulation mechanism includes a human model. An inner surface of the human model is fixedly connected with a lower model and an end model. The lower model and the end model are fixedly connected. Two upper models are slidably connected to an outer surface of the lower model. The two upper models are rotatably connected to the end model. A plurality of horizontal support tubes and vertical support tubes are fixedly connected to an inner surface of the lower model. The horizontal support tubes and the vertical support tubes are communicated with each other. An elastic bag is communicated with an outer surface of the vertical support tube. A simulated tumor is filled in an inner surface of the elastic bag. A water storage box is fixedly connected to an inner surface of the lower model near the left side. The water storage box is communicated with the plurality of horizontal support tubes. A water delivery pipe is communicated with an outer surface of the water storage box near the left side.

[0005] Preferably, the human model is fixedly installed on an upper surface of the operation console, and the elastic bag is slidably connected with the upper model.

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

[0007] Preferably, the outer surfaces of the two outer shells are fixedly connected with limiting rails. The limiting rails are fixedly connected with the second positioning rods. The third positioning rod is slidably connected with the limiting rails.

[0008] Preferably, a first bevel gear is fixedly connected to the outer surface of the first positioning rod. A second bevel gear is fixedly connected to the outer surface of the support cylinder. An installation plate is fixedly connected to the inner surface of the human body model. A rotating rod is rotatably connected to the outer surface of the installation plate through a bearing. A third bevel gear is fixedly connected to the outer surface of the rotating rod. 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. The output end of the motor is fixedly connected with the rotating rod.

[0010] Preferably, a cooling mechanism is further arranged inside the human body model. The cooling mechanism includes an air outlet pipe. A shunt pipe is communicated with the outer surface of the air outlet pipe. The shunt pipe is communicated with the positioning tube. An air delivery pipe is communicated with the outer surface of the positioning tube. A sliding cylinder is slidably connected to the inner surface of the air delivery pipe. The other end of the sliding cylinder is communicated with a nozzle. A heat dissipation channel is opened on the lower surface of the human body model. A fan is installed on the inner surface of the heat dissipation channel. The air outlet pipe is communicated with the heat dissipation channel.

[0011] Preferably, limiting grooves are opened on the outer surfaces of the lower model, the outer shell and the upper model. The air delivery pipe and the sliding cylinder are respectively slidably connected with the limiting grooves.

[0012] Preferably, a limiting plate is fixedly connected to the outer surface of the sliding cylinder. The limiting plate is slidably connected with 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 provides a teaching device for simulating brachytherapy of gynecological tumors. Its simulation mechanism injects water into the elastic bag through a water storage box and a support tube. By utilizing the characteristics of the polymer material containing hydrophilic and hydrophobic mixed groups, the expansion and retraction of the simulated tumor are achieved. The valve design at the water inlet of each elastic bag enables the simulation of tumors at different positions, allowing the trainer to repeatedly practice for different tumor positions, quickly familiarize with the operation path of the applicator in the complex human body structure, greatly improve the practical accuracy, simulate the process of the tumor shrinking due to heat, realistically restore the actual changes of the tumor during radiotherapy, help the trainer intuitively understand the radiotherapy principle, master the core skill of adjusting the applicator parameters according to the tumor changes, and effectively shorten the adaptation period from theoretical learning to clinical practice.

[0016] 2. The present invention provides a teaching device for simulating brachytherapy of gynecological tumors. After the training is over, the opening mechanism of the human model realizes the relative sliding and opening of the upper model with respect to the lower model through the coordinated operation of components such as a motor, bevel gears, and a rotating plate. On the one hand, the trainer can directly observe the final state of the simulated tumor, combine the operations during the training process, conduct self-reflection and summary, and timely discover the deficiencies in the operations. On the other hand, the teacher can, based on the internal situation of the simulated human body structure after opening and taking actual cases as the basis, explain the change mechanism of the tumor and the operation details of the applicator during radiotherapy, making the abstract knowledge concrete. Compared with the traditional teaching that relies on two-dimensional pictures or videos for explanation, this intuitive teaching method greatly improves the knowledge absorption rate of students and significantly enhances the teaching efficiency and quality.

[0017] 3. The present invention provides a teaching device for simulating brachytherapy of gynecological tumors. When the heater works and causes the temperature in the simulated tumor area to rise, the fan drives the low-temperature outside air to be ejected from the nozzle through a series of pipes. At the same time, as the outer shell opens, the positioning tube changes its position driven by the transmission mechanism, skillfully pulling the nozzle to move synchronously, and adjusting the heat dissipation area and angle in real time to achieve the full-area coverage of heat dissipation around the heater and in the simulated tumor area, exchange heat with the heat, avoid the change of the performance of the simulated tumor material due to the excessive temperature for a long time, ensure that the simulated tumor can always respond according to the preset temperature and morphological change rules, guarantee the scientificity and accuracy of the simulation training, make the training results real and reliable. Secondly, the stable temperature environment extends the service life of the internal components of the device, especially the components sensitive to temperature, and reduces the device maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of a teaching device for simulating brachytherapy of gynecological tumors provided by the present invention;

[0019] Figure 2 is the partial top view sectional structural schematic diagram of a teaching device for simulating brachytherapy of gynecological tumors provided by the present invention;

[0020] Figure 3 This is a schematic diagram of the partial front view cross-section of a teaching device for simulating brachytherapy for gynecological tumors proposed by the present invention;

[0021] Figure 4 For Figure 3 The enlarged partial structure diagram at position A in

[0022] Figure 5 This is a schematic diagram of the partial structure of the air delivery pipe of a teaching device for simulating brachytherapy for gynecological tumors proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the partial structure of the water storage box of a teaching device for simulating brachytherapy for gynecological tumors proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the partial structure of the limiting groove of a teaching device for simulating brachytherapy for gynecological tumors proposed by the present invention.

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

[0026] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0027] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0028] Such as Figures 1 - 7As shown, a gynecological tumor brachytherapy simulation training and teaching equipment includes an operating table 1 and an applicator body 5. A simulation mechanism 2 is arranged 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 with a lower model 202 and an end model 203. The lower model 202 and the end model 203 are fixedly connected. The outer surface of the lower model 202 is slidably connected with two upper models 204. The two upper models 204 are rotatably connected with the end model 203. 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, 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, 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, the water storage box 209 is connected with the multiple horizontal support tubes 205, and the outer surface of the water storage box 209 near the left side is connected with a water pipe 210.

[0029] The effect is that the source applicator is held and enters the interior of the human body model 201 through the end model 203, and 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, and water can be injected into the elastic bag 207 in a certain area in a targeted manner to expand the elastic bag 207, 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. The simulated tumor shrinks quickly, simulating the changes of the tumor after radiation during radiotherapy.

[0030] like Figures 1 - 7As shown, the mannequin 201 is fixedly installed 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 arranged inside the mannequin 201. The teaching mechanism 3 includes a first positioning rod 301. A support cylinder 302 is rotatably connected to the outer surface of the first positioning rod 301 through a bearing. First rotating plates 303 are fixedly connected to the outer surfaces of the first positioning rod 301 and the support cylinder 302. Outer shells 304 are fixedly connected to the outer surfaces of the two upper models 204. Second positioning rods 305 are fixedly connected to the outer surfaces of the two outer shells 304 near the top. Two second rotating plates 306 are rotatably connected to the outer surfaces of the two second positioning rods 305. Third rotating plates 307 are rotatably connected between the multiple second rotating plates 306 and the first rotating plates 303. A third positioning rod is rotatably connected to the centers of the multiple third rotating plates 307. A positioning tube 308 is rotatably connected to the junction of the second rotating plate 306 and the third rotating plate 307. A limiting rail 6 is fixedly connected to the outer surfaces of the two outer shells 304. The limiting rail 6 is fixedly connected to the second positioning rod 305. The third positioning rod is slidably connected to the limiting rail 6. A first bevel gear 7 is fixedly connected to the outer surface of the first positioning rod 301. A second bevel gear 8 is fixedly connected to the outer surface of the support cylinder 302. A mounting plate 9 is fixedly connected to the inner surface of the mannequin 201. A rotating rod 10 is rotatably connected to the outer surface of the mounting plate 9 through a bearing. A third bevel gear 11 is fixedly connected to the outer surface of the rotating rod 10. The third bevel gear 11 is meshed and connected to the first bevel gear 7 and the second bevel gear 8 respectively. A motor 12 is installed on the inner surface of the bottom of the mannequin 201. 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 and connected to 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 reversely. The first rotating plates 303 on the outer surfaces of the first positioning rod 301 and the support cylinder 302 also rotate together. The multiple third rotating plates 307 cooperate with the second rotating plates 306 rotatably connected to the second positioning rod 305. As the third rotating plates 307 rotate, the second rotating plates 306 will rotate around the second positioning rod 305. Because the outer shells 304 fixed to the outer surfaces of the two upper models 204 are connected to the second rotating plates 306, the outer shells 304 will change their positions as the second rotating plates 306 rotate, thereby driving the upper model 204 to slide open relative to the lower model 202. During this process, the third positioning rod slides along the limiting rail 6 under the drive of the multiple third rotating plates 307, ensuring the stability and accuracy of the opening process of the upper model 204.

[0032] As Figures 1 - 7As shown, a cooling mechanism 4 is also provided inside the mannequin 201. The cooling mechanism 4 includes an air outlet pipe 401. A shunt pipe 402 is communicatively connected to the outer surface of the air outlet pipe 401. The shunt pipe 402 is communicatively connected to a positioning pipe 308. An air delivery pipe 403 is communicatively connected to the outer surface of the positioning pipe 308. A sliding cylinder 404 is slidably connected to the inner surface of the air delivery pipe 403. The other end of the sliding cylinder 404 is communicatively connected to a nozzle 405. A heat dissipation channel is formed in the lower surface of the mannequin 201. A fan 406 is installed on the inner surface of the heat dissipation channel. The air outlet pipe 401 is communicatively connected to the heat dissipation channel. Limiting grooves 13 are formed in the outer surfaces of the lower model 202, the outer shell 304, and the upper model 204. The air delivery pipe 403 and the sliding cylinder 404 are respectively slidably connected to the limiting grooves 13. A limiting plate 14 is fixedly connected to the outer surface of the sliding cylinder 404. The limiting plate 14 is slidably connected to the limiting groove 13. A heater 15 and a visual probe 16 are fixedly connected to the front end of the applicator body 5.

[0033] The effect is that when the fan 406 is started, external air is inhaled and sent into the air outlet pipe 401. The air flows in the air outlet pipe 401, enters the positioning pipe 308 through the shunt pipe 402, is then delivered to the sliding cylinder 404 through the air delivery pipe 403, and finally is ejected from 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 this 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 process of opening the cover, heat dissipation can be performed at multiple positions.

[0034] Brief operating steps of the gynecological oncology brachytherapy simulation training teaching device:

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

[0036] Simulation training: The trainer holds the applicator and enters the inside of the mannequin 201 through the end model 203. According to the image information recorded by the visual probe 16 at the front end of the applicator body 5, simulated surgical operations are carried out. 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 discharged, and the simulated tumor retracts, simulating the changes of tumors after radiation during radiotherapy.

[0037] Result observation: After the training is completed, open the upper part of the human model 201, start the internal motor 12 of the human model 201, the motor 12 drives the rotating rod 10 to rotate, and through the transmission of the bevel gear and the rotating plate, the outer shell 304 drives the upper model 204 to slide open relative to the lower model 202, so that the trainer can directly observe the internal simulated tumor state and understand the radiotherapy simulation training effect.

[0038] Temperature adjustment: After the heater 15 works or when the outer shell 304 is opened, the fan 406 in the heat dissipation channel on the lower surface of the human model 201 starts, inhales the low-temperature air from the outside, passes through the air outlet pipe 401, the shunt pipe 402, the positioning pipe 308, and the air delivery pipe 403, and is ejected from the nozzle 405, and the hot air is discharged outside the device. The positioning pipe 308 moves during the process of opening the cover to achieve heat dissipation at multiple positions.

[0039] Working principle: The trainer holds the applicator and enters the interior of the human body model 201 through the end model 203. The image information recorded by the visual probe 16 at the front end of the applicator body 5 facilitates the trainer 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, and the water flows into the elastic bag 207 through the connected horizontal support pipe 205 and vertical support pipe 206. A valve is provided at the water inlet of each elastic bag 207, so that the inside of a specific elastic bag 207 can be injected with water targeted. The elastic bag 207 is filled with a polymer material containing hydrophilic and hydrophobic mixed groups, such as poly(N-isopropylacrylamide) PNIPAM. In a low-temperature environment, the hydrophilic groups dominate, and the material absorbs water, causing the elastic bag 207 to expand, and the internal simulated tumor also expands accordingly, simulating the existence state of the tumor in the human body. Tumors in different positions can be simulated, facilitating targeted practice. When the heater 15 at the front end of the applicator body 5 approaches the simulated tumor, the heat generated by the heater 15 is transferred. When the temperature exceeds the lower critical solution 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 return to the vertical support pipe 206 again. The simulated tumor quickly retracts, simulating the change of the tumor after being irradiated during radiotherapy, providing a simulated scenario of tumor change close to reality for the trainer, and at the same time facilitating the inspection of the training results after training. At the same time, the lower model 202, upper model 204, and end model 203 in the human body model 201 constitute the simulated human internal structure space. The horizontal support pipe 205 and vertical support pipe 206 ensure the structural stability and water circulation. When it is necessary to observe the internal tumor situation after the training, the human body model 201 is divided into upper and lower parts and hinged by a hinge. When it is necessary to check the internal training results, only the upper half of the human body model 201 needs to be opened, and the motor 12 inside the human body model 201 is started. 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 drive the first positioning rod 301 and the support cylinder 302 to rotate in the reverse direction. The first rotating plate 303 on the outer surfaces of the first positioning rod 301 and the support cylinder 302 also rotates together. 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 to the outer surfaces 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 slides along the limit rail 6 driven by multiple third rotating plates 307, ensuring the stability and accuracy of the opening process of the upper model 204. After the upper model 204 is opened,The trainer can directly observe the state of the internal simulated tumor and intuitively understand the effect after radiotherapy simulation training. The teacher can combine the internal situation of the opened simulated human body structure and explain in detail to the students knowledge such as the changes of the tumor during radiotherapy and the key points of applicator operation, 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 works, it will release heat to the simulated tumor area, increasing the temperature of this area. After the simulated tumor is restored, there is still residual heat. During the process of opening the outer shell 304, the fan 406 in the heat dissipation channel on the lower surface of the human body model 201 starts, sucking in the relatively low-temperature air from the outside and sending it into the air outlet pipe 401. The air flows in the air outlet pipe 401, enters the positioning pipe 308 through the shunt pipe 402, and is then transported to the sliding cylinder 404 through the air delivery pipe 403, and finally sprayed out by the nozzle 405. The sprayed low-temperature air can directly act on the area near the heater 15 and exchange heat with the heat generated by the heater 15, reducing the temperature of this 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 process of opening the cover, heat dissipation can be carried out at multiple positions.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as the technical solution content of the present invention is not departed from, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A teaching device for gynecological tumor brachytherapy simulation training, comprising an operation table (1) and a source applicator body (5), characterized in that: A simulation mechanism (2) is provided on the top of the operation table (1). The simulation mechanism (2) includes a human body model (201). An inner surface of the human body model (201) is fixedly connected to a lower model (202) and an end model (203). The lower model (202) and the end model (203) are fixedly connected. Two upper models (204) are slidably connected to an outer surface of the lower model (202). The two upper models (204) are rotatably connected to the end model (203). A plurality of transverse support tubes (205) and vertical support tubes (206) are fixedly connected to an inner surface of the lower model (202). The transverse support tubes (205) and the vertical support tubes (206) are communicated with each other. An elastic bag (207) is communicated with an outer surface of the vertical support tube (206). A water storage box (209) is fixedly connected to an inner surface of the lower model (202) near the left side. The water storage box (209) is communicated with the plurality of transverse support tubes (205). A water delivery pipe (210) is communicated with an outer surface of the water storage box (209) near the left side.

2. The gynecological oncology brachytherapy simulation training teaching device according to claim 1, wherein: The human body model (201) is fixedly installed on the upper surface of the operation table (1). The elastic bag (207) is slidably connected to the upper model (204).

3. The gynecological oncology brachytherapy simulation training teaching device according to claim 2, wherein: A teaching mechanism (3) is provided inside the human body model (201). The teaching mechanism (3) includes a first positioning rod (301). A support cylinder (302) is rotatably connected to an outer surface of the first positioning rod (301) through a bearing. First rotating plates (303) are fixedly connected to the outer surfaces of the first positioning rod (301) and the support cylinder (302). Outer shells (304) are fixedly connected to the outer surfaces of the two upper models (204). Second positioning rods (305) are fixedly connected to outer surfaces of the two outer shells (304) near the top. Two second rotating plates (306) are rotatably connected to the outer surfaces of the two second positioning rods (305). Third rotating plates (307) are rotatably connected between the plurality of second rotating plates (306) and the first rotating plates (303). A third positioning rod is rotatably connected to the centers of the plurality of third rotating plates (307). A positioning tube (308) is rotatably connected to the junction of the second rotating plate (306) and the third rotating plate (307).

4. The gynecological oncology brachytherapy simulation training teaching device according to claim 3, characterized in that: Limit rails (6) are fixedly connected to the outer surfaces of the two outer shells (304). The limit rails (6) are fixedly connected to the second positioning rods (305). The third positioning rod is slidably connected to the limit rails (6).

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

6. The gynecological oncology brachytherapy simulation training teaching device according to claim 1, wherein: 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 a rotating rod (10).

7. The gynecological oncology brachytherapy simulation training teaching device according to claim 6, wherein: A cooling mechanism (4) is further arranged inside the human body model (201). The cooling mechanism (4) includes an air outlet pipe (401). A shunt pipe (402) is communicated with the outer surface of the air outlet pipe (401). The shunt pipe (402) is communicated with a positioning pipe (308). An air delivery pipe (403) is communicated with the outer surface of the positioning pipe (308). A sliding cylinder (404) is slidably connected to the inner surface of the air delivery pipe (403). The other end of the sliding cylinder (404) is communicated with a nozzle (405). A heat dissipation channel is formed in the lower surface of the human body model (201), and a fan (406) is installed on the inner surface of the heat dissipation channel. The air outlet pipe (401) is communicated with the heat dissipation channel.

8. The gynecological oncology brachytherapy simulation training teaching device according to claim 7, characterized in that: Limiting grooves (13) are formed in the outer surfaces of the lower model (202), the outer shell (304) and the upper model (204). The air delivery pipe (403) and the sliding cylinder (404) are respectively slidably connected to the limiting grooves (13).

9. The gynecological oncology brachytherapy simulation training teaching device according to claim 8, wherein: A limiting plate (14) is fixedly connected to the outer surface of the sliding cylinder (404), and the limiting plate (14) is slidably connected to the limiting groove (13).

10. The gynecological oncology brachytherapy simulation training teaching device according to claim 1, wherein: A heater (15) and a visual probe (16) are fixedly connected to the front end of the applicator body (5).

Images