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CN-122024547-A - Simulation training device for digestive endoscopy ESD operation

CN122024547ACN 122024547 ACN122024547 ACN 122024547ACN-122024547-A

Abstract

The invention discloses a simulation training device for an ESD operation under a digestive endoscope, which comprises an outer box and a stomach model arranged in the outer box, wherein an inner shell for lifting the stomach model is arranged in the outer box, a peristaltic simulation mechanism is arranged on the inner shell and comprises a plurality of capsules arranged on the outer side of the inner shell and a driving assembly arranged in the inner shell, the driving assembly comprises a power module and a plurality of injection modules corresponding to the capsules, and the power module sequentially drives the injection modules to pump injection pressure medium to control the capsules to shrink and expand. According to the invention, the plurality of the capsules are arranged at the greater curvature of the stomach model, and the pressure medium is sequentially filled and withdrawn into the capsules, so that peristaltic waves with directivity, which are transmitted from the upper part of the stomach to the antrum, can be manufactured by utilizing the sequential expansion and contraction of the capsules, thereby simulating the peristaltic conditions of the stomach of a human body, providing a more real and dynamic training scene, and enabling students to obtain a more full and solid training effect.

Inventors

  • Du Gaoneng
  • Wang Kekun
  • WANG XIAORONG
  • Pang qian
  • MENG XUJUN
  • Fu Yanong

Assignees

  • 海南树兰博鳌医院有限公司

Dates

Publication Date
20260512
Application Date
20260127

Claims (9)

  1. 1. The utility model provides a simulation trainer of ESD operation under digestion scope, includes outer case (1) and is in stomach model (7) of outer case (1), its characterized in that: An inner shell (6) for lifting a stomach model (7) is arranged in the outer box (1), a peristaltic simulation mechanism is arranged on the inner shell (6), and the peristaltic simulation mechanism comprises a plurality of bag bodies (4) positioned at the outer side of the inner shell (6) and a driving assembly positioned inside the inner shell (6); The driving assembly comprises a power module and a plurality of pushing injection modules corresponding to the capsule bodies (4), the power module controls the plurality of capsule bodies (4) to shrink and expand in sequence by sequentially driving the plurality of pushing injection modules to pump injection pressure transmission media, and the capsule bodies (4) squeeze the stomach model (7) through expansion so as to simulate stomach peristalsis.
  2. 2. The simulated training device for the digestive endoscopy ESD operation according to claim 1, wherein a shell (9) is fixedly connected to the inside of the inner shell (6), the power module comprises a motor (5) arranged in an outer box (1), an output shaft of the motor (5) penetrates through the side wall of the inner shell (6) and extends into the shell (9), one end of the output shaft of the motor (5) is connected with a cam (12) through a key, and the injection module comprises a plurality of fixed cylinders (10) penetrating through the outer side of the shell (9).
  3. 3. The simulated training device for the digestive endoscopy ESD operation according to claim 2, wherein a connecting rod (16) is arranged at one end of the fixed cylinder (10) in the casing (9) in a penetrating manner, a roller (13) abutted against the cam (12) is rotatably connected to the bottom end of the connecting rod (16), a spring (14) is fixedly connected between the roller (13) and the fixed cylinder (10) at the outer side of the connecting rod (16), and a piston (15) is fixedly connected to one end of the connecting rod (16) in the fixed cylinder (10).
  4. 4. The simulation training device for the digestive endoscopy ESD operation according to claim 3, wherein one side of the top end of the inner shell (6) is arc-shaped and is matched with the biggest curve of the stomach model (7), a plurality of capsules (4) are fixedly connected to the arc-shaped side surface of the inner shell (6) at equal intervals, the number of the capsules (4) and the fixed cylinders (10) are the same and correspond one by one according to the arrangement sequence, and connecting pipes (11) are fixedly connected between the capsules (4) and the fixed cylinders (10).
  5. 5. The simulation training device for the digestive endoscopy ESD operation according to claim 1, wherein a connecting cylinder (102) is arranged in the middle of the front side of the outer box (1) in a penetrating manner, a fixing pile (103) is fixedly connected to the top end of the inner wall of the rear side of the outer box (1), hoops (8) for fixing a stomach model (7) are arranged on the outer side of the fixing pile (103) and the outside of a cylinder body of the connecting cylinder (102) in the outer box (1), and a box cover (101) is arranged on the top end of the outer box (1).
  6. 6. The simulation training device for the digestive endoscopy ESD operation according to claim 5, wherein a plurality of housings (3) are fixedly connected to two sides of the outer case (1), a connecting shaft (20) is arranged on one side of each housing (3) in a penetrating manner, a ratchet wheel (19) and a concave wheel (21) are connected to the outer portion of a rod body of the housing (3) through keys, and a knob (17) is fixedly connected to one end of each connecting shaft (20) located outside the housing (3).
  7. 7. The simulated training device for the digestive endoscopy ESD operation according to claim 6, wherein a pull rope (2) is wound on the outer side of the concave wheel (21), the inner free end of the pull rope (2) is fixedly connected with the concave wheel (21), the outer free end of the pull rope (2) extends into the outer box (1), a drag hook (18) is fixedly connected with the outer free end of the pull rope (2), and a plurality of hanging rings matched with the drag hook (18) are arranged on the outer side of the stomach model (7).
  8. 8. The simulated training device for the digestive endoscopy ESD operation according to claim 6, wherein a ratchet block (23) matched with a ratchet wheel (19) is rotationally connected at the top end of one side inner wall of the housing (3), a torsion spring (22) is fixedly connected between the ratchet block (23) and the housing (3), an arc-shaped through groove (301) is formed in the side wall of the housing (3), a poking button (24) is arranged at the through groove (301), and one end of the poking button (24) is fixedly connected with the ratchet block (23).
  9. 9. The simulated training device for the digestive endoscopy ESD operation of claim 5, wherein the fixing piles (103) are arranged on the outer box (1) in a penetrating way, and the fixing piles (103) are in a hollow cylinder shape.

Description

Simulation training device for digestive endoscopy ESD operation Technical Field The invention relates to the technical field of endoscopic surgery training models, in particular to a simulation training device for an ESD surgery under a digestive endoscope. Background ‌ ESD (endoscopic submucosal dissection) ‌ is an operation mode for resecting early tumors or larger polyps of the digestive tract by endoscopy, is suitable for ‌ intramucosal cancers, precancerous lesions ‌ and the like, and has the advantages of ‌ minimally invasive, organ function preservation, complete resected focus ‌, rapid postoperative recovery and few complications. The ESD operation has high clinical technical requirements, and huge risks exist in direct study on patients, so that a model is often adopted for operation simulation training, the problem of insufficient experience of a beginner in actual clinical operation can be effectively solved, key steps such as focus identification, mucosa marking, injection lifting, accurate stripping, hemostasis and the like are repeatedly practiced in a risk-free environment, the operation proficiency, hand-eye coordination capability and space perception are remarkably improved, a learning curve can be shortened, the risk of complications in operation is reduced, and a solid foundation is laid for safely and efficiently transitioning to actual patient operation. Through searching, the Chinese patent publication No. CN113643600B discloses a sealed and pressure-controllable pig stomach fixator, which comprises a container body, wherein a fixing mechanism for fixing the isolated pig stomach is arranged in the container body, the fixing mechanism comprises a first fixing component for fixing the esophagus section of the isolated pig stomach and a second fixing component for fixing the duodenum section, a sealing cavity for accommodating the isolated pig stomach is arranged in the container body, and the device further comprises a first pressure input part for inputting pressure into the sealing cavity and a second pressure input part for inputting pressure into the isolated pig stomach. The application simulates the conditions of gastric peristalsis and extrusion by adjusting and controlling the pressure in a sealing cavity where a gastric model is positioned, but the real human gastric peristalsis is a wave-like motion with directivity, which propagates along a large curve of the stomach from the upper part of the stomach body to the antrum, but not the whole mechanical contraction and expansion, so that the physiological simulation degree of the device is lower, a more real and dynamic training scene is difficult to provide, and the training effect is insufficient. Disclosure of Invention Aiming at the prior art, the invention aims to provide a simulation training device for an ESD operation under a digestive endoscope, which mainly solves the technical problem of ensuring the real and dynamic effects of simulation training. In order to achieve the above object, the technical solution of the embodiment of the present invention is as follows: the simulation training device for the digestive endoscopy ESD operation comprises an outer box and a stomach model in the outer box, wherein an inner shell for lifting the stomach model is arranged in the outer box, a peristaltic simulation mechanism is arranged on the inner shell, and the peristaltic simulation mechanism comprises a plurality of bag bodies arranged on the outer side of the inner shell and a driving assembly arranged in the inner shell; The driving assembly comprises a power module and a plurality of pushing injection modules corresponding to the capsule bodies, the power module controls the plurality of capsule bodies to shrink and expand in sequence by sequentially driving the plurality of pushing injection modules to pump injection pressure medium, and the capsule bodies squeeze the stomach model through expansion so as to simulate stomach peristalsis. Further, the inside fixedly connected with casing of inner shell, power module are including setting up the motor in the outer case, and the output shaft of motor link up the lateral wall of inner shell and extend to in the casing, and the output shaft one end of motor is connected with the cam through the key, and the injection module is including link up a plurality of fixed section of thick bamboo that sets up in the casing outside. Further, a connecting rod is arranged at one end of the fixed cylinder in the shell in a penetrating way, a roller in abutting connection with the cam is rotatably connected to the bottom end of the connecting rod, a spring is fixedly connected between the roller and the fixed cylinder at the outer side of the connecting rod, and a piston is fixedly connected to one end of the connecting rod in the fixed cylinder. Further, one side of the top end of the inner shell is arc-shaped and matched with the stomach curvature of the stomach model, a plurality of bag