Short enteroscope simulation model

Abstract

The invention relates to a short enteroscope simulation model, and relates to the field of medical training models, the short enteroscope simulation model comprises a base and a simulation model installed on the base, the simulation model comprises a head model and a digestive tract model, the head model is fixed on the base, and the digestive tract model is detachably fixed on the base; the alimentary canal model comprises a throat which is detachably placed in the throat area of the head model. According to the invention, the training requirements of medical personnel on the operation of the short enteroscope can be effectively met.

Description

Technical Field

[0001] The present application relates to the field of medical training models, and in particular to a short enteroscope simulation model. Background Art

[0002] Enteroscopy is a challenging endoscopic operation technique. The anatomical structure of the small intestine is complex and lengthy. There are two traditional enteroscopy training methods: the first is to perform actual operations on patients, but this involves certain medical risks, and due to the uncertain number of patients, it is not conducive to medical staff to master the operation skills; the second is to perform operations on animal organs and corpses. Although this can meet basic operation training requirements, animal organs and corpses are highly contaminated and carry pathogens, and animal organs and corpses cannot be reused, resulting in high costs for this training method.

[0003] In the related technologies, the colonoscopy training models used for medical training on the market are generally conventional digestive tract simulations, lacking the ability to simulate digestive tract reconstruction after digestive tract lesions. The simulation degree of the training models is very poor, and the training effect cannot meet industry needs.

[0004] In view of the above-mentioned related technologies, there is currently a lack of effective simulation training tools specifically for short enteroscope operation on the market, which cannot meet the training needs of medical staff for this technology. To this end, the applicant provides a short enteroscope simulation model. Summary of the invention

[0005] In order to meet the training needs of medical staff for short enteroscopic operation, the present application provides a short enteroscopic simulation model.

[0006] The short small intestinal endoscopy simulation model provided in this application adopts the following technical solution: A short small enteroscope simulation model comprises a base and a simulation model mounted on the base, the simulation model comprises a head model and a digestive tract model, the head model is fixed on the base, and the digestive tract model is detachably fixed on the base; the digestive tract model comprises a larynx, and the larynx is detachably placed in the larynx area of ​​the head model.

[0007] By adopting the above technical solution, by separating the digestive tract model from the head model, the digestive tract model can be detachably fixed on the base, and the digestive tract model can be replaced with different surgical procedure models as needed, thereby better meeting different training needs; there is no need to repeatedly produce the base and head model, thereby reducing the cost of the training model.

[0008] Optionally, the digestive tract model also includes an esophagus and a stomach; the larynx is detachably connected to one end of the esophagus, and the other end of the esophagus is detachably connected to the cardia of the stomach; the distance from the anterior nasal aperture to the cardia of the head model is 44 cm, and the length of the esophagus is 26 cm.

[0009] By adopting the above technical solution and designing the model size with reference to the "Chinese Anatomy Numerical", it is helpful to improve the simulation of the training model and better meet the training needs. The larynx and esophagus are detachably connected, and the esophagus and the cardia of the stomach are detachably connected, so that the larynx, esophagus, and stomach can be replaced separately, and the digestive tract after a certain part of the digestive tract is reconstructed according to different cases, which improves the flexibility of the training model and reduces the model cost.

[0010] Optionally, the digestive tract model further includes the jejunum, duodenum, bile duct, pancreas and pancreatic duct; the circumference of the jejunum is 2.4 cm; the jejunum and stomach are sutured, and the length of the suture from the mouth to the stomach is 50 cm.

[0011] By adopting the above technical solution and designing the model size with reference to the "Numerical Anatomy of the Chinese", it helps to improve the simulation of the training model and better meet the training needs.

[0012] Optionally, the main body of the head model is made of 10A skin-colored silicone; the nasal cavity of the head model is made of 5A flesh-colored silicone; the oral cavity of the head model is made of 5A flesh-colored silicone; the larynx is made of 5A flesh-colored silicone; the esophagus is made of 0A flesh-colored silicone; the stomach is made of 0A flesh-colored silicone; the jejunum and duodenum are made of 10A highly elastic flesh-colored silicone; the bile duct and pancreatic duct are made of 10A flesh-colored silicone; and the pancreas is made of 0A yellow silicone.

[0013] By adopting the above technical solution, models of different parts are prepared with silicone of different materials, so that the material and friction coefficient of the model are close to the actual human body, the simulation degree of the model is improved, and the training needs are better met.

[0014] Optionally, the inner side of the digestive tract model is coated with a lubricant, and the friction coefficient of the inner side of the digestive tract model is adjusted to 0.38.

[0015] By adopting the above technical solution and referring to the "Research on Capsule Robot Dynamics Based on Small Intestine Mechanical Constitutive Model", the friction coefficient of the small intestine is 0.3. By reasonably selecting the materials of the digestive tract model and configuring lubricants, the friction coefficient in the digestive tract model is made close to the actual organ, thereby improving the simulation degree.

[0016] Optionally, the digestive tract model is designed using the Roux-enY procedure, in which the distance from the reconstructed small intestine suture point to the stomach suture point is 34.5 cm, the output loop length is 54.6 cm, and the input loop length is 6.6 cm.

[0017] By adopting the above technical solution, a digestive tract model is designed according to the pathological characteristics of the Roux-enY procedure so that the Roux-enY procedure can be practiced directly.

[0018] Optionally, the digestive tract model is designed using the Whipple procedure, in which the output loop length is 57.2 cm and the input loop length is 73.2 cm.

[0019] By adopting the above technical solution, a digestive tract model is designed according to the pathological characteristics of the Whipple procedure so that the Whipple procedure can be practiced directly.

[0020] Optionally, the base is provided with a mounting platform for placing the head model, a semi-cylindrical esophageal groove for supporting the esophagus, and a mounting cavity for placing the intestinal structure; a surgical module plate is detachably installed in the mounting cavity, and the stomach, jejunum, duodenum, bile duct, pancreas and pancreatic duct are fixed on the surgical module plate.

[0021] By adopting the above technical solution and setting up a surgical module plate, it is convenient to assemble and disassemble the intestinal model as a whole.

[0022] Optionally, the procedure module plate is detachably fixed to the base with screws, and two handles are fixed at two diagonal corners of the procedure module plate.

[0023] By adopting the above technical solution, the surgical module board is fixed by screws, which makes it convenient to disassemble and assemble the surgical module board; and the provision of a handle makes it convenient to take and place the surgical module board.

[0024] Optionally, a stomach support part, a pancreatic support part and an intestinal support part are provided on the procedure module board; multiple intestinal support parts are provided along the trajectories of the jejunum and the duodenum, and the intestinal support part includes a support column vertically fixed on the procedure module board and an arc claw inserted into the end of the support column, the arc claw is clamped on the jejunum or duodenum at a corresponding position, and the arc claw is sleeved on the corresponding support column, and the height of the support column is set according to the design height of the jejunum or duodenum at the corresponding position.

[0025] By adopting the above technical solution, the stomach support part, pancreatic support part and intestinal support part are used to support and fix each digestive tract organ, so that the jejunum and duodenum can be arranged to simulate actual cases.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application discloses a short enteroscope simulation model. By separating the digestive tract model from the head model, the digestive tract model can be detachably fixed on the base. The digestive tract model can be replaced with different surgical procedure models as needed, which can better meet different training needs; there is no need to repeatedly make the base and head model, which reduces the cost of the training model; 2. Designing the model size with reference to actual human body data helps to improve the simulation of the training model and better meet the training needs; the larynx and esophagus are detachably connected, and the esophagus and the cardia of the stomach are detachably connected, so that the larynx, esophagus, and stomach can be replaced separately, and the digestive tract reconstruction after certain digestive tract lesions can be performed according to different cases, which improves the flexibility of the training model and reduces the model cost; 3. This model can not only practice the normal human digestive tract small enteroscopic surgery, but also expand the various surgical procedures for digestive tract reconstruction after surgery; compared with the normal digestive tract, the surgically reconstructed digestive tract is more challenging for the insertion of small enteroscopes. The rich surgical procedure modules and expansion functions of this model can shorten the learning cycle of novice doctors; various surgical procedure modules can be expanded, such as: Roux-enY procedure, BillrothⅡ anastomosis procedure, jejunal side-to-side anastomosis procedure, BillrothⅡ anastomosis + Braun anastomosis procedure, etc., and even the latest surgical procedures can be made and matched to this model for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of disassembly and assembly of the digestive tract model according to an embodiment of the present application; Figure 3 This is a schematic diagram of the Roux-enY procedure structure; Figure 4 This is a schematic diagram of the Whipple procedure structure.

[0028] Figure numerals: 1. base; 11. mounting table; 12. esophagus groove; 13. mounting cavity; 14. procedure module plate; 141. handle; 15. cable tie; 16. stomach support part; 17. pancreas support part; 18. intestinal support part; 181. support column; 182. arc claw; 2. head model; 21. nasal cavity; 22. oral cavity; 23. tongue; 24. mounting groove; 3. digestive tract model; 31. larynx; 32. esophagus; 33. stomach; 331. cardia; 34. jejunum; 35. duodenum; 36. bile duct; 37. pancreas and pancreatic duct. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The present application embodiment discloses a short small intestinal endoscope simulation model, referring to Figure 1 , including a base 1 and a simulation model installed on the base 1; the simulation model includes a head model 2 and a digestive tract model 3.

[0031] refer to Figure 1 and Figure 2The head model 2 is fixed on the base 1 with screws, and the digestive tract model 3 is detachably fixed on the base 1. The head model 2 is provided with a nasal cavity 21, an oral cavity 22 and a tongue.

[0032] The digestive tract model 3 includes a larynx 31, an esophagus 32, a stomach 33, a jejunum 34, a duodenum 35, a bile duct 36, a pancreas and a pancreatic duct 37. A mounting groove 24 matching the outer contour of the larynx 31 is provided in the head model 2 at a position corresponding to the larynx 31, and the larynx 31 is placed in the mounting groove 24.

[0033] The base 1 is provided with a mounting platform 11 for placing the head model 2, a semi-cylindrical esophagus 32 groove 12 for supporting the esophagus 32, a tie 15 for fixing the esophagus 32, and a mounting cavity 13 for placing the intestinal structure; the head model 2 is placed on the mounting platform 11 and fixed by screwing the screws; the esophagus 32 is placed in the esophagus 32 groove 12, and the tie 15 passes from under the esophagus 32 groove 12 to tie and fix the esophagus 32 on the base 1, and the tie 15 is a Velcro strap; the mounting cavity 13 is used to place the rest of the digestive tract model 3.

[0034] A procedure module board 14 is arranged in the installation cavity 13, and the stomach 33, jejunum 34, duodenum 35, bile duct 36, pancreas and pancreatic duct 37 are all fixed on the procedure module board 14; the procedure module board 14 is detachably fixed to the base 1 with screws, and two handles 141 are fixed at two diagonal corners on the procedure module board 14 to facilitate the placement and removal of the procedure module board 14. Intestinal models of different lesion types are fixed on a single procedure module board 14, which is convenient for model replacement for different procedure training.

[0035] The surgical module plate 14 is provided with a stomach 33 support part 16, a pancreas support part 17 and an intestinal support part 18; the top of the stomach 33 support part 16 is set as a curved platform that fully fits the outer contour of the stomach 33, so that the stomach 33 can be placed stably and naturally; the top of the pancreatic support part 17 is set as a semi-annular placement platform in accordance with the contour of the pancreas, and the pancreas can be stably stuck in the pancreatic support part 17 without being compressed, so as to ensure the natural state of the pancreas.

[0036] Multiple intestinal support parts 18 are arranged along the trajectories of the jejunum 34 and the duodenum 35 to support the intestine to form a specific shape according to the characteristics of the case; the intestinal support part 18 includes a support column 181 vertically fixed on the surgical module plate 14 and an arc claw 182 inserted into the end of the support column 181, the arc claw 182 is clamped on the jejunum 34 or duodenum 35 at the corresponding position, and the arc claw 182 is sleeved on the corresponding support column 181, and the height of the support column 181 is set according to the design height of the jejunum 34 or duodenum 35 at the corresponding position.

[0037] The throat 31 is detachably placed in the mounting groove 24 of the head model 2; the throat 31 is plugged and detachably connected to one end of the esophagus 32, and the other end of the esophagus 32 is plugged and detachably connected to the cardia 331 of the stomach 33; the distance from the anterior nasal aperture of the head model 2 to the cardia 331 of the stomach 33 is 44 cm, and the length of the esophagus is 26 cm. The circumference of the jejunum 34 is 2.4 cm; the jejunum 34 is sutured to the stomach 33, and the length of the suture from the oral cavity 22 to the stomach 33 is 50 cm.

[0038] The main body of the head model 2 is made of 10A skin-colored silicone; the nasal cavity 21 of the head model 2 is made of 5A flesh-colored silicone; the oral cavity 22 of the head model 2 is made of 5A flesh-colored silicone; the larynx 31 is made of 5A flesh-colored silicone; the esophagus 32 is made of 0A flesh-colored silicone; the stomach 33 model is a resected half of the stomach 33, and the stomach 33 is made of 0A flesh-colored silicone; the jejunum 34 and the duodenum 35 are made of 10A highly elastic flesh-colored silicone; the bile duct 36 and the pancreatic duct are made of 10A flesh-colored silicone; and the pancreas is made of 0A yellow silicone. The inner side of the digestive tract model 3 is coated with a lubricant, and the friction coefficient of the inner side of the digestive tract model 3 is adjusted to 0.38. The elasticity, friction coefficient and color simulation of the model are improved by using specific silicone materials and lubricants.

[0039] refer to Figure 3 ,When the digestive tract model 3 was designed using the Roux-enY procedure, the distance from the reconstructed small intestine suture point to the stomach 33 suture point in the Roux-enY procedure was 34.5 cm, the output loop length was 54.6 cm, and the input loop length was 6.6 cm.

[0040] refer to Figure 4 When the digestive tract model 3 was designed using the Whipple procedure, the output loop length in the Whipple procedure was 57.2 cm and the input loop length was 73.2 cm.

[0041] The implementation principle of a short enteroscope simulation model disclosed in an embodiment of the present application is as follows: This model simulates the complete deconstruction involved in the enteroscope, from the oral cavity 22 to the end of the small intestine. The user can insert the short enteroscope from the oral cavity 22 for operation training. The model truly restores the stomach and intestinal shape of Roux-en Y surgery (after gastric 33 pyloric resection) and Whipple surgery (biliary intestinal, pancreaticojejunostomy). By replacing different surgical modules, short enteroscope training after different gastric 33 intestinal reconstruction surgeries can be performed. The texture, structure and color of the cavity are highly simulated with those of the human body cavity; the highly elastic simulated small intestine structure can be used to practice key techniques such as insertion, retraction and loop crossing of the enteroscope and outer sleeve.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A short small intestinal endoscope simulation model, characterized by: The invention comprises a base (1) and a simulation model mounted on the base (1), wherein the simulation model comprises a head model (2) and a digestive tract model (3), wherein the head model (2) is fixed on the base (1), and the digestive tract model (3) is detachably fixed on the base (1); the digestive tract model (3) comprises a throat (31), and the throat (31) is detachably placed in the throat (31) region of the head model (2).

2. A short small intestinal endoscope simulation model according to claim 1, characterized in that: The digestive tract model (3) further comprises an esophagus (32) and a stomach (33); the larynx (31) is detachably connected to one end of the esophagus (32), and the other end of the esophagus (32) is detachably connected to the cardia (331) of the stomach (33); the distance from the anterior nasal aperture to the cardia (331) of the head model (2) is 44 cm, and the length of the esophagus is 26 cm.

3. A short small intestinal endoscope simulation model according to claim 2, characterized in that: The digestive tract model (3) also includes the jejunum (34), the duodenum (35), the bile duct (36), the pancreas and the pancreatic duct (37); the circumference of the jejunum (34) is 2.4 cm; the jejunum (34) and the stomach (33) are sutured, and the length of the suture from the oral cavity (22) to the stomach (33) is 50 cm.

4. The short small intestinal endoscope simulation model according to claim 3, characterized in that: The main body of the head model (2) is made of 10A skin-colored silicone; the nasal cavity (21) of the head model (2) is made of 5A flesh-colored silicone; the oral cavity (22) of the head model (2) is made of 5A flesh-colored silicone; the larynx (31) is made of 5A flesh-colored silicone; the esophagus (32) is made of 0A flesh-colored silicone; the stomach (33) is made of 0A flesh-colored silicone; the jejunum (34) and the duodenum (35) are made of 10A highly elastic flesh-colored silicone; the bile duct (36) and the pancreatic duct are made of 10A flesh-colored silicone; and the pancreas is made of 0A yellow silicone.

5. The short small intestinal endoscope simulation model according to claim 4, characterized in that: The inner side of the digestive tract model (3) is coated with a lubricant, and the friction coefficient of the inner side of the digestive tract model (3) is adjusted to 0.

38.

6. A short small intestinal endoscope simulation model according to any one of claims 3 to 5, characterized in that: The digestive tract model (3) is designed using the Roux-enY procedure. In the Roux-enY procedure, the distance from the reconstructed small intestine suture point to the stomach (33) suture point is 34.5 cm, the output loop length is 54.6 cm, and the input loop length is 6.6 cm.

7. A short small intestinal endoscope simulation model according to any one of claims 3 to 5, characterized in that: The digestive tract model (3) is designed using the Whipple procedure, in which the output loop length is 57.2 cm and the input loop length is 73.2 cm.

8. A short small intestinal endoscope simulation model according to any one of claims 3 to 5, characterized in that: The base (1) is provided with a mounting platform (11) for placing a head model (2), a semi-cylindrical esophagus (32) groove (12) for supporting the esophagus (32), and a mounting cavity (13) for placing an intestinal structure; a surgical module plate (14) is detachably mounted in the mounting cavity (13); a stomach (33), a jejunum (34), a duodenum (35), a bile duct (36), a pancreas and a pancreatic duct (37) are fixed on the surgical module plate (14).

9. The short small intestinal endoscope simulation model according to claim 8, characterized in that: The procedure module plate (14) is detachably fixed to the base (1) by means of screws, and two handles (141) are fixed at two diagonal positions on the procedure module plate (14).

10. The short small intestinal endoscope simulation model according to claim 8, characterized in that: The surgical module plate (14) is provided with a stomach (33) support portion (16), a pancreas support portion (17) and an intestinal support portion (18); a plurality of intestinal support portions (18) are provided along the trajectories of the jejunum (34) and the duodenum (35); the intestinal support portion (18) comprises a support column (181) vertically fixed on the surgical module plate (14) and an arc clamp (182) inserted into the end of the support column (181); the arc clamp (182) is clamped on the jejunum (34) or duodenum (35) at the corresponding position; the arc clamp (182) is sleeved on the corresponding support column (181); the height of the support column (181) is set according to the design height of the jejunum (34) or duodenum (35) at the corresponding position.

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