Treatment training simulator for injecting hardening agent into esophageal varicosity under endoscope

By designing a training simulator for endoscopic esophageal varices injection sclerotherapy, the risk of bleeding when novice doctors practice acupuncture on the human body is solved, a safe simulation training environment is provided, and the accuracy of acupuncture and surgical safety are improved.

CN223486617UActive Publication Date: 2025-10-28THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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Patent Information

Application Number
CN202422796958.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-28
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

When performing endoscopic sclerotherapy for esophageal varices in clinical practice, existing technology makes it difficult to provide a safe training model. Novice doctors are unable to practice acupuncture multiple times on the human body, and there is a risk of bleeding.

Method used

A training simulator for endoscopic esophageal varices injection sclerotherapy was designed. The simulator uses a long circular tube with a soft rubber inner wall, an imitation esophageal vein inside, and is equipped with a liquid inlet tube and a protective cover to simulate a real vascular environment. Red dye solution is used to simulate blood, providing a safe practice environment.

Benefits of technology

Through simulation equipment, medical students can practice acupuncture multiple times in a safe environment, improve acupuncture accuracy, reduce human operation risks, and ensure surgical safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

A treatment training simulator for injecting a hardening agent into esophageal varicose veins under an endoscope comprises a round tube type long tube, the inner wall of the round tube type long tube is covered with a layer of soft rubber, a plurality of artificial esophageal veins are arranged between the inner wall of the round tube type long tube and the soft rubber, the artificial esophageal veins are arranged in an intercommunication mode, one of the artificial esophageal veins is a liquid inlet tube, and the other of the artificial esophageal veins is a liquid outlet tube. When the esophageal vein teaching aid is used in clinical endoscopic esophageal vein teaching, red pigment is injected into the opening of the rubber hose, so that the rubber hose has blood like esophageal veins, and an injection needle is used for injection training in the training process; if the injection needle is inserted into the rubber hose, blood can be pumped back, injection can be practiced for many times, an operation model can be provided for clinical or hospital teaching esophageal varicosity hardener treatment under an endoscope, the risk of direct human body operation is avoided, and an esophageal varicosity operation protection frame under the endoscope is protected.
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Description

Technical Field

[0001] This utility model relates to the medical field, and in particular to a training simulator for endoscopic sclerotherapy of esophageal varices. Background Technology

[0002] Sclerotherapy for varicose veins is challenging to teach clinically because the esophageal varices are diseased blood vessels with high pressure. As medical students, their instructors are hesitant to allow them to directly inject varicose veins on human subjects. If the needle doesn't reach the vein, the high pressure can cause spurting bleeding. Therefore, this model is needed for medical students to practice repeatedly in clinical settings. After repeated practice, they can accurately insert the needle into the vein and administer the medication before practicing on human subjects. Utility Model Content

[0003] To address the challenge of endoscopic sclerotherapy training simulation for esophageal varices in clinical or academic settings, this invention provides an endoscopic sclerotherapy training simulator for esophageal varices.

[0004] The technical solution adopted by this utility model is as follows:

[0005] An endoscopic sclerotherapy training simulator for esophageal varices includes a round tube with a soft rubber coating on the inner wall. Multiple simulated esophageal veins are arranged between the inner wall of the round tube and the soft rubber, and the simulated esophageal veins are interconnected. One of the simulated esophageal veins is an inlet tube that extends outside the round tube.

[0006] The long, round tube is equipped with a protective sleeve.

[0007] The protective sleeve has a pocket for holding the red dye solution.

[0008] The inner diameter of the circular tube is 4cm.

[0009] The material used to mimic esophageal veins is a rubber flexible tube. Beneficial effects

[0010] In clinical endoscopic esophageal varices teaching, red pigment is first injected into the opening of the rubber tubing, making the tubing appear to contain blood, similar to esophageal veins. Practice injections are then performed using a syringe. If blood is drawn back after the syringe needle pierces the tubing, repeated injections can be practiced. This provides a model for clinical or hospital teaching procedures of endoscopic sclerotherapy for esophageal varices, avoiding the risks of direct human manipulation and ensuring the safety of endoscopic esophageal varices surgery. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a cross-section of the present invention;

[0013] Figure 3 This is a structural diagram of the protective sleeve;

[0014] In the picture: 1. Round tube 2. Soft rubber 3. Imitation of esophageal vein 4. Inlet tube 5. Protective sleeve 6. Pocket Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] An endoscopic sclerotherapy training simulator for esophageal varices includes a round tube 1. The inner wall of the round tube 1 is covered with a layer of soft rubber 2. Multiple simulated esophageal veins 3 are arranged between the inner wall of the round tube 1 and the soft rubber 2. The simulated esophageal veins 3 are interconnected. One of the simulated esophageal veins 3 is an inlet tube 4, which extends outside the round tube 1.

[0018] The esophageal vein 3, which mimics a normal blood vessel, is slightly larger than a normal blood vessel and is considered a pathological vessel.

[0019] The cylindrical tube 1 is approximately 25cm long.

[0020] Since esophageal varices are located in the esophagus, treatment must be performed through the mouth into the esophagus. Therefore, one end of the round tube 1 is designed to resemble a human mouth, while the other end is a round tube opening.

[0021] The cylindrical tube 1 is equipped with a protective sleeve 5, and the protective sleeve 5 is equipped with a pull cord.

[0022] The protective sleeve 5 is provided with a pocket 6 for holding red dye solution.

[0023] The inner diameter of the round tube 1 is 4cm.

[0024] The material of the simulated esophageal vein 3 is a rubber hose.

[0025] This device can be manufactured using 3D printing to simulate esophageal varices, facilitating subsequent practice.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An endoscopic sclerotherapy training simulator for esophageal varices, characterized in that: It includes a cylindrical long tube, the inner wall of which is covered with a layer of soft rubber. Multiple simulated esophageal veins are provided between the inner wall of the cylindrical long tube and the soft rubber. The simulated esophageal veins are interconnected. One of the simulated esophageal veins is a liquid inlet tube that extends outside the cylindrical long tube.

2. The endoscopic sclerotherapy training simulator for esophageal varices according to claim 1, characterized in that: The long, round tube is equipped with a protective sleeve.

3. The endoscopic esophageal variceal sclerotherapy training simulator according to claim 2, characterized in that: The protective sleeve has a pocket for holding the red dye solution.

4. The endoscopic sclerotherapy training simulator for esophageal varices according to claim 1, characterized in that: The inner diameter of the circular tube is 4cm.

5. The endoscopic sclerotherapy training simulator for esophageal varices according to claim 1, characterized in that: The material used to mimic esophageal veins is a rubber flexible tube.