CN201336101Y - Mechanical duodenum device - Google Patents

Abstract

The utility model discloses a mechanical duodenum device, which comprises a duodenum model section, a foldable supporting seat, a bile pancreatic duct model and a duodenum nipple model; the duodenum model section is fixedly connected to the right side of the supporting seat and is in a tubular shape with a closed bottom, and the upper end of the duodenum model section is provided with an interface connected with the simulated stomach tube; through holes are respectively arranged on the left side and the right side of the supporting seat, when the supporting seat is folded, the through holes on the two sides are communicated, and the through hole on the right side is communicated with the duodenal model section; the bile pancreatic duct model is tubular, is fixedly connected to the left side of the supporting seat and is communicated with the left side through hole; the duodenal papilla model is movably arranged between the through holes at the two sides. The utility model discloses simple structure, simple to operate uses interchangeable artifical nipple to accomplish ERCP operation, makes the student can be familiar with whole clinical process.

Description

mechanical duodenal device

technical field

The utility model relates to a mechanical duodenum device.

Background technique

Retrograde cholangiopancreatography (ERCP) is an effective treatment for pancreatic and biliary system lesions, and diagnostic and therapeutic ERCP has had a major impact on the management of patients with biliary and pancreatic diseases. It is well known that higher rates of procedural failure and complications are associated with inexperienced endoscopists. ERCP learning is mostly carried out under the guidance of one-on-one supervision in the actual clinical operation of patients. Based on published data, the American Society of Gastrointestinal Endoscopy (ASGE) recommends a minimum number of ERCP sessions that should be completed in order to acquire procedural skills and resilience. Through the complete training process, the trainees can gain sufficient confidence and adaptability. The adaptability is aimed at changes that are different from book knowledge due to individual differences in patients. In order to acquire basic operating skills (determined that the success rate of ERCP is higher than 80%) and adaptability, trainees are estimated to complete 180-200 ERCP clinical operations, but many training courses do not provide enough patients to improve trainees' ERCP skills. Recent reports have shown that graduated gastroenterology residents have completed an average of only 100 (range 40-180) ERCPs during their training, and most of them have already planned to perform ERCP clinical work. In other places, taking China as an example, due to the large number of trainees waiting for training, the duration of the hands-on training is only 4 to 6 months.

Although the application of therapeutic ERCP has promoted the treatment of biliary and pancreatic diseases, safety is still the most important thing for patients. It is well known that inexperienced endoscopists are responsible for high failure rates and postoperative complications (including pancreatitis, hemorrhage, infection, and rarely perforation or even death), especially in the novice stage. Inexperienced physicians are not familiar with all ERCP accessories and cannot use them skillfully, which may be the cause of operation failure and postoperative complications. The actual operation of the simulator (in the early stage of learning or before the actual operation on the patient) provides the trainee with the opportunity to master the basic operation technology of ERCP, so that they understand how to use the equipment and accessories, avoid complications, and complete the operation safely.

The current focus is on using alternative learning methods rather than improving endoscopic technique through the use of patients. Several simulators provide gastroenterology trainees with clinical ERCP practice, including a live isolated pig stomach model, an anesthetized pig model, a computer simulator, a mechanical ERCP simulator, and the X-Vision ERCP simulator. Although each of these methods has its own limitations, simulator exercises are still used to improve trainee ERCP skills. The disadvantages of simulator training include: it is not a living body, it cannot simulate the whole clinical process, and it is expensive. In order to train students into experienced masters who can safely complete ERCP, more practice opportunities must be provided.

Utility model content

The technical problem to be solved by the utility model is to provide a mechanical duodenal device, which uses a replaceable artificial nipple to complete the ERCP operation, so that trainees can be familiar with the whole clinical process.

In order to solve the above technical problems, the technical solution provided by the utility model is: a mechanical duodenal device, which includes a duodenal model section, a foldable support base, a bile-pancreatic duct model and a duodenal Intestinal papilla model; the duodenum model section is fixedly connected to the right side of the support base, and is tubular with a closed bottom, and the upper end is an interface connected with the simulated gastric tube; the left side and the right side of the support base are respectively provided with There are through holes, and the through holes on both sides are connected when the support seat is folded, and the through hole on the right side is connected with the duodenum model segment; On the side, and communicated with the left through hole; the duodenal papilla model is movably arranged between the through holes on both sides.

The through holes on both sides of the support seat are circular.

The utility model has the advantage of using replaceable artificial nipples instead of animal tissues, that is, pig stomach or chicken heart, to practice nipple cutting. This removable nipple can be used to directly measure the length and direction of the incision, which is beneficial to objectively evaluate the completion of the incision. Different bile duct designs can be used to accommodate different ERCP procedures. The product is easy to install, and the real endoscope and accessories are used in the practice to perform the mechanical operation of ERCP. Replaceable nipples allow for repeated nipple cutting exercises, requiring only a short installation time to replace, no special training required, and much time and effort wasted.

Description of drawings:

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is the structural dispersion schematic diagram of the utility model;

Fig. 2 is a structural schematic diagram of the utility model.

Detailed ways:

A mechanical duodenal device as shown in Figures 1 and 2, the device includes a duodenal model section 1, a foldable support base 2, a bile duct model 3, a pancreatic duct model 4 and a duodenal papilla Model 5; the duodenum model section 1 is tubular with a closed bottom, fixedly connected to the right side of the support base 2, and its upper end can be connected to the interface 21 of the simulated gastric tube; the left side and the right side of the support base 2 The sides are respectively provided with circular through holes 23, 24, and the through holes on both sides are connected when the support seat 2 is folded, and the through hole 24 on the right side is connected with the duodenum model section 1; the bile duct model 3 The pancreatic duct model 4 is set as tubular, fixedly connected on the left side of the support base 2, and communicated with the left side through hole 23; the duodenal papilla model 5 is movably arranged between the through holes 23,24 on both sides between.

The duodenum model section 1 is made of rubber, which has variability and elasticity. It is inserted into the hard resin glass platform support seat 2. Its upper end interface 21 is connected with the simulated gastric tube, and the end is closed as a blind end and fixed with the support seat 2. . A circular hole 24 with a diameter of 1.25 inches is provided on the sidewall 2.0 inches downward from the upper end of the duodenum model section 1 to accommodate the duodenum papilla model 5 protruding into the intestinal cavity.

The Plexiglas support base 2 in the mechanical duodenal device can make the soft duodenum model segment 1 more stable connected with the gastroesophagus, and the support base 2 can be rotated 30 degrees to simulate the distortion of the duodenum (similar to deformed in the duodenum). The circular hole 23 on the left side of the resin glass support seat 2 can accommodate the bile duct 3 and the pancreatic duct 4, the opening diameter of the bile duct is 0.5 inch, and the opening diameter of the pancreatic duct is 0.25 inch. The supporting seat 2 can be opened as shown in Fig. 2 through the hinge 22 device, which is convenient for quickly removing or installing the disposable duodenal papilla model 5, and is also convenient for quickly taking out and placing the duodenal papilla model 5 and the narrow place of the bile duct 3 bracket.

Since the disposable duodenal papilla model 5 is movably located in the middle of the through holes on both sides of the support base 2, it can rotate and change its position to simulate and distort the real duodenal papilla. This design can be selected Intubation of the biliopancreatic duct. The best bile duct axis can be marked by marking the flat part of the duodenal papilla, and guide students to practice duodenal papillatomy.

The simulated X-ray fluoroscopy is used to practice the development of the bile-pancreatic duct during ERCP. In order to avoid looking directly into the device, we use a curtain of plastic or canvas to cover the simulation device. In order to observe the situation in the bile duct or pancreatic duct, we fix the pinhole camera on the support rod and place it inside the curtain, and connect the image of the camera to an external monitor similar to X-ray perspective, and place it next to the endoscopic monitor . The camera is controlled by a foot switch and is used to visualize the bile or pancreatic ducts. The foot pedal is improved by a controller, which connects the camera with a timer, and the timer is used to count the time of analog X-ray fluoroscopy. A camera with a variable focus lens is used to simulate an X-ray fluoroscopy setup.

The mechanical duodenal device is opened so that the replaceable duodenal nipple model 5 is in place between its supports, like a "sandwich". Bile ducts of different designs can be installed in the mechanical duodenum for different exercises. In addition, the duodenum device can be rotated to change the position of the duodenum and nipple, which is used to simulate the clinically encountered duodenum and duodenum. Anatomical variation of the nipple.

Claims (2)

1. A mechanical duodenal device, characterized in that: the device includes a duodenal model segment, a foldable support base, a bile-pancreatic duct model and a duodenal papilla model; the duodenal The model section is fixedly connected to the right side of the supporting seat, and is tubular with a closed bottom, and the upper end is an interface connected with the simulated gastric tube; the left side and the right side of the supporting seat are respectively provided with through holes, and when the supporting seat is folded, the two The side through hole is connected, and the through hole on the right side communicates with the duodenum model segment; the bile-pancreatic duct model is set as tubular, fixedly connected on the left side of the support base, and communicated with the left side through hole ; The duodenal papilla model is movably arranged between the through holes on both sides. 2. The mechanical duodenal device according to claim 1, wherein the through holes on both sides of the support base are circular.

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