RU201311U1 - MEDICAL SIMULATOR FOR TRAINING PRACTICAL SKILLS OF HYDROSTATIC DISINVAGINATION UNDER ULTRASONIC CONTROL - Google Patents

Abstract

The utility model relates to medical technology and is a simulator for teaching practical skills, which can be used in teaching doctors the technique of hydrostatic disinvagination under ultrasound guidance. The simulator for mastering the technique of hydrostatic disinvagination under ultrasound control simulates the abdominal cavity with an imitation of the large and ileum in it and allows you to form intussusception with a thread, and then straighten it under ultrasound control. In this case, the abdominal cavity simulator is filled with liquid to enable ultrasound visualization of the process. After the formation of the invaginate, a liquid is injected into the lumen of the imitation intestine by the thread in order to spread the invaginate using hydrostatic pressure. The technical result is achieved by the fact that a medical simulator for teaching the technique of hydrostatic disinvagination, including an abdominal simulator and a bowel simulator, allows to simulate intussusception and straighten it under ultrasound control.

Description

The utility model relates to medical technology and is a simulator for teaching practical skills that can be used to train doctors in the technique of hydrostatic disinvagination under ultrasound guidance.

This medical simulator has no analogues.

The technical result is achieved by the fact that a medical simulator for teaching the technique of hydrostatic disinvagination, including a simulator of the abdominal cavity and intestine, allows you to simulate intussusception and straighten it under ultrasound control.

A medical simulator for teaching practical skills of hydrostatic disinvagination under ultrasound control includes a simulator 1 of the abdomen (Fig. 1, 2, 3), which should be made of material passable for ultrasonic beams. To simulate the intestines, it is proposed to use an acoustic composite material based on silicone "Silagerm 7101". It is proposed to imitate soft tissues around the intestine with a composite based on polyacrylamide. (Of the materials used for the manufacture of ultrasound phantoms, the closest in properties to biological tissues, is Zerdine®, but its cost and delivery to Russia may be fraught with a number of difficulties, for example, the manufacturer's price is $ 1800/5 kg).

The essence of the utility model is illustrated by Figures 1, 2, 3, which depict a proposed training simulator.

In the figures, numbers indicate:

1 - belly simulator

2 - channel

3 - colon and ileum simulator

4 - thread

5 - simulator of the Bowl flap

6 - anal sphincter simulator

7 - imitator of the colon and ileum, screwed inward (invaginate)

8 - Esmarch mugs with a hollow tube

9 - Esmarch mug with a hollow tube and a tip

10 - air relief valve.

In the simulator 1 of the abdomen there is a hollow channel 2 (Fig. 1, 2, 3), which contains the simulator 3 (Fig. 1, 2, 3) of the large intestine and the ileum. Channel 2 is connected to the Esmarch mug with a hollow tube 8 (Fig. 3), located at a height of 0.3 meters and an air relief valve 10 (Fig. 3).

The simulator 3 of the large intestine and the ileum is hollow, with it connected to the Esmarch circle with a hollow tube and tip 9 (Fig. 3), located at an adjustable height from 1 to 1.5 meters. Simulator 3 of the colon and ileum is not hermetically fixed to channel 2 by simulator 5 (Figs. 1, 2) of the Bauhinia flap, and hermetically attached to simulator 6 (Figs. 1, 2, 3) of the anal sphincter. A thread 4 is attached to the inner end of the colon and ileum simulator 3 (Figs. 1, 2, 3). Thread 4 consists of a synthetic material (for example, polypropylene, lavsan, nylon), resistant to prolonged exposure to water. The simulator 3 of the colon and ileum consists of a material that stretches, increasing in diameter by 2-3 times, and the material is also capable of being screwed inside without effort.

The work on the medical simulator is carried out as follows.

Through Esmarch's mug with a hollow tube 8, channel 3 (abdomen simulator) is filled with water. When the channel is completely filled, the air relief valve closes. Thus, in the abdominal simulator 1, an imitation of intra-abdominal pressure and the necessary conditions for the passage of ultrasonic beams are created. Next, the thread 4 is pulled through the simulator 6 of the anal sphincter, and thus creates a simulator 7 (Fig. 2) of the large and ileum, screwed inward. After that, the trainee, using an ultrasonic transducer (not shown in the drawing), is convinced of the presence of imitation of intussusception in the simulator 1 of the abdomen. The assistant places the tip from the hollow tube connected to the Esmarch cup 9, which is filled with water, into the anal sphincter simulator 6. Water enters the colon and ileum simulator 3 and as a result, a hydrostatic pressure is created, which pushes the screwed-in colon and ileum simulator 7 through the Bauhinia flap simulator 5. The student observes the imitation of disinvagination, which is carried out under the action of hydrostatic pressure in the lumen of the intestinal simulator (7) using an ultrasonic sensor. The student sees the disinvagination process on the monitor screen of the ultrasound machine.

Claims (1)

A medical simulator for teaching practical skills of hydrostatic disinvagination under ultrasound control, characterized in that the abdominal cavity simulator is made of a composite based on polyacrylamide, has a hollow channel, which is not tightly connected by the Bauhinia flap simulator with the colon and ileum simulator made of Silagerm 7101 material, which is hermetically attached to a simulated anal sphincter, and a thread is attached to its inner end, resistant to prolonged exposure to water.

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