CN107316555A - Decollement full-thickness excisional model box under a kind of stomach endoscopic mucosal - Google Patents

Abstract

The invention provides a full-thickness resection model box for gastric endoscopic submucosal dissection, which is composed of a simulated esophagus, a nylon buckle, an electrode pad, an elastic rubber band, three traction clips, a simulated abdominal box, and a duodenal closure buckle. The simulated esophagus penetrates into the simulated abdominal cavity box, the nylon buckle is fixed at one end of the simulated esophagus, the three traction clips are fixed on both sides of the simulated abdominal cavity box by elastic rubber bands, and the electrode pads are adhered to the outer wall of the experimental specimen. The invention has reasonable design, easy-to-obtain manufacturing materials, simple manufacture and low cost. It is suitable for training beginners in endoscopic submucosal dissection, full-thickness gastrectomy and emergency treatment of gastric perforation, simulating the closed abdominal environment during full-thickness gastric wall resection and perforation, and it is a kind of use effect close to the actual state of clinical operation. ESD trained model. Simultaneously simulate the relatively airtight environment of the abdominal cavity during full-thickness resection and perforation, and use three traction clips to simulate the supporting role of the main suspensory ligaments such as the hepatic and gastric ligaments, which is close to clinical practice.

Description

A full-thickness resection model box for gastric endoscopic submucosal dissection

technical field

The invention belongs to a teaching model, and relates to a full-thickness resection model box of gastric endoscopic submucosal dissection (ESD), which is a training model for endoscopic submucosal dissection (ESD) and full-thickness resection of gastric wall.

Background technique

China is a country with a high incidence of gastric cancer. On the basis of the increasing popularity of NBI, magnifying endoscopy, and chromoendoscopy, and the gradual improvement of the level of endoscopic diagnosis and treatment, and based on the large number of gastroscopy examinations each year, domestic gastroenterologists and gastroenterologists are currently The number of cases of early gastric cancer detected by endoscopists is also increasing year by year. Endoscopic submucosal dissection (ESD), as a new minimally invasive treatment technique, has been gradually and widely used in clinical practice, expanding the scope of indications for endoscopic submucosal resection (EMR). The problem of residual lesion and recurrence faced by EMR technology was clarified. At the same time, submucosal excision (ESE) based on ESD technology is also used for submucosal tumors growing in the muscularis propria, which can easily cause perforation. Once perforated, the gastric cavity will not be able to fill, causing difficulties for further repair. How to provide a good operation training model for gastroenterology and digestive endoscopists to carry out ESD training, especially how to simulate the serious complication of perforation, and give beginners emergency treatment on the training model is of great significance to beginners.

There are two main training methods currently used: animal experiments and ESD training models. Using experimental animals for ESD training can be a good way to train ESD operations and is very similar to actual clinical work. However, the preparation process for animal experiments is cumbersome, expensive, and requires certain animal breeding conditions, which is not easy to popularize. The commonly used ESD training model we currently use simply puts the pig stomach in the model, which is difficult to simulate the relatively airtight environment of the abdominal cavity during full-thickness resection and perforation, and does not reflect the supporting role of the stomach in the main suspensory ligaments in the abdominal cavity. The actual gap is too large.

Although repeated ESD operation experience accumulated in clinical practice can improve the doctor's endoscopic treatment level, training on the model before the initial operation plays an important role in reducing surgical complications and improving the ability to deal with them. Therefore, developing a teaching model that is as close as possible to the actual state of clinical operation has become a clinical necessity and a close need.

Contents of the invention

The purpose of the present invention is to provide a full-thickness resection model box for gastric endoscopic submucosal dissection (ESD), which is realized by the following technical solutions: simulated esophagus, nylon buckle, electrode pad, elastic rubber band, first traction clip, The simulated abdominal box, the duodenal closure buckle, the second traction clip, and the third traction clip are composed. One end of the simulated esophagus penetrates into the simulated abdominal box, and the nylon buckle is fixed on the end of the simulated esophagus located in the simulated abdominal box. Fixed and closed, the three traction clips were respectively fixed on both sides of the simulated abdominal cavity box by elastic rubber bands, and the electrode pads were adhered to the outer wall of the experimental specimen. The simulated abdominal cavity box was a foam box with a cover, 50 cm long, 40 cm wide, and 30 cm high. The simulated esophagus is a plastic tube with a diameter of 2 cm and a length of 30 cm.

When in use, lay the simulated abdominal cavity box flat first, take the experimental pig stomach specimen, fix the esophagus of the specimen to one end of the simulated esophagus through a nylon buckle, and clamp the three traction clips on the upper small bend of the specimen (upper left) and the lower bend of the specimen respectively. Bend (lower left), large bend in the middle of the specimen (right side), and fixed to the simulated abdominal cavity box 6 by elastic rubber bands, simulating the changing posture of the patient's gastric cavity. The closure buckle secures the distal end of the duodenum of the specimen. Adhere the electrode pads to the bottom of the specimen, pull the electrode wires of the electrode pads directly from the gap between the cover and the box, cover the simulated abdominal cavity box, and seal the surrounding area with wide tape to keep it airtight, that is, a simulated closed abdominal cavity is formed.

The invention provides a training model for training beginners to perform endoscopic submucosal dissection (ESD), full-thickness gastrectomy technique and emergency treatment of gastric perforation, which is a kind of ESD training model whose use effect is close to the actual state of clinical operation It simulates the closed abdominal environment during full-thickness gastric wall resection and perforation. The ESD training model can simultaneously simulate the relatively closed abdominal environment during full-thickness resection and perforation, and simulate the supporting role of the main suspensory ligaments such as the hepatic and gastric ligaments with three traction clips, which is close to clinical practice. The model of the invention has reasonable design, easy-to-obtain manufacturing materials, simple manufacture and low cost. Suitable for beginners to practice. Especially suitable for ESD practice in primary hospitals.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Figure 2 is a schematic diagram of the structure in use.

detailed description

The present invention is further described in conjunction with drawings and embodiments.

Example 1

Referring to Fig. 1, a full-thickness gastric ESD resection model box of the present invention consists of a simulated esophagus 1, a nylon buckle 2, an electrode pad 3, an elastic rubber band 4, a first traction clip 5, a simulated abdominal cavity box 6, and a duodenal closure buckle Belt 7, the second traction clip 8, and the third traction clip 9 are composed, and one end of the simulated esophagus 1 penetrates into the simulated abdominal cavity box 6, and the simulated esophagus 1 is a plastic tube with a diameter of 2 cm and a length of 30 cm. The nylon buckle 2 is fixed on one end of the simulated esophagus 1 located in the simulated abdominal cavity box 6 for fixing and closing. The first traction clamp 5, the second traction clamp 8 and the third traction clamp 9 are respectively fixed on the simulated abdominal cavity by elastic rubber bands 4. On both sides of the box 6, the electrode pads 3 are fixed on the outer wall of the experimental specimen. The simulated abdominal cavity box 6 is a foam box with a cover, 50 cm long, 40 cm wide, and 30 cm high.

Example 2

Referring to Fig. 2, when in use, first place the simulated abdominal cavity box 6 horizontally, take a pig stomach specimen 10 for the experiment, fix the esophagus of the specimen to one end of the simulated esophagus 1 through a nylon buckle 2, and attach the first traction clip 5 and the second traction clamp 5 to one end of the simulated esophagus 1. The clip 8 and the third traction clip 9 respectively clamp the upper small bend of the specimen (upper left), the lower small bend of the specimen (lower left), and the large middle bend of the specimen (right), and are fixed on both sides of the simulated abdominal cavity box 6 by the elastic rubber band 4 , fixed to simulate the patient’s gastric cavity changing posture, the distal end of the duodenum of the specimen is locked by the duodenal closure buckle 7, the electrode pad 3 is adhered under the specimen, and the electrode wire connected to the electrode pad 3 (not shown in the figure) Mark) is directly pulled out from the gap between the simulated abdominal cavity box 6 and the cover, the simulated abdominal cavity box 6 is covered, and the surrounding area is sealed with a wide adhesive tape to keep the airtightness, thus forming a simulated closed abdominal cavity.

The ESD training model box provided by the present invention can simultaneously simulate the relatively airtight environment of the abdominal cavity during full-thickness resection and perforation, and use three traction clips to simulate the support of main suspensory ligaments such as the hepatic and gastric ligament, which is close to clinical practice. The relevant materials of this model are easy to obtain, simple to make, and low in cost, especially suitable for ESD practice in primary hospitals.

Claims (3)

1. A full-thickness resection model box for gastric endoscopic submucosal dissection is characterized in that it consists of simulated esophagus (1), nylon buckle (2), electrode pad (3), elastic rubber band (4), the first traction clip (5), simulated abdominal cavity box (6), duodenal closure buckle (7), second traction clip (8), and third traction clip (9), one end of the simulated esophagus (1) penetrates into the simulated The abdominal cavity box (6), the nylon buckle (2) is fixed on one end of the simulated esophagus (1) located in the simulated abdominal cavity box (6), for fixing and closing, the first traction clamp (5), the second traction clamp (8 ), the third traction clamp (9) is respectively fixed on both sides of the simulated abdominal cavity box (6) through elastic rubber bands (4), and the electrode pad (3) is fixed on the outer wall of the specimen used in the experiment. 2. a kind of gastric endoscopic submucosal dissection full-thickness resection model box according to claim 1, is characterized in that, simulated abdominal cavity box (6) adopts the foam box with cover, long 50cm, wide 40cm, high 30cm. 3. A full-thickness resection model box for gastric endoscopic submucosal dissection according to claim 1, wherein the simulated esophagus (1) is a plastic tube with a diameter of 2 cm and a length of 30 cm.