Model for simulating cirrhosis esophageal and gastric fundus varicose vein rupture bleeding

Abstract

The utility model relates to the technical field of medical models, and discloses a model for simulating hepatic cirrhosis esophageal and gastric fundus varicose vein rupture bleeding, which comprises a model assembly. The model assembly comprises a placing plate, the front surface of which is provided with a liver model; the stomach model is arranged on the front surface of the placing plate; the first pipe body is arranged on the rear surface of the placing plate, and the bottom end of the first pipe body penetrates through the placing plate; the blood display device has the advantages of simple structure and convenience in display, when the blood display device is used, blood flows through the tube body II and the tube body IV in sequence through the tube body I and the tube body III and then is converged into the liver model, the valve is rotated to expand the tube body II to form varicose veins, the valve is closed, the blood in the tube body II is sprayed out through the hole bodies to form rupture bleeding, and the blood display effect is good. According to the utility model, the cirrhosis esophageal and gastric fundus varicose veins can be conveniently displayed, the phenomenon of rupture and bleeding after the varicose veins can be displayed, the practicability is improved, the structure is simple, and an operator can conveniently use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical models, in particular to a model simulating rupture and bleeding of esophageal and gastric fundus varicose veins due to liver cirrhosis. Background Art

[0002] Acute gastrointestinal bleeding is a common complication of digestive system diseases. Among them, bleeding from esophageal or gastric variceal rupture caused by decompensated cirrhosis is particularly troublesome and often life-threatening in severe cases. Therefore, accurate diagnosis and judgment of treatment efficacy are crucial.

[0003] Portal vein pressure is 5-10 mmHg. When portal vein pressure is persistently >10 mmHg, it is called portal hypertension. When portal vein blood flow increases and portal vein resistance rises due to various factors, portal vein pressure rises. Understanding how increased portal vein pressure can lead to esophageal and gastric varices is crucial for students majoring in clinical medicine and nursing. Currently, instruction in this area relies primarily on written explanations combined with images. Because this content is relatively abstract, many students struggle to fully grasp the entire process by which increased portal vein pressure alters blood flow and causes esophageal and gastric varices. In view of this, we want to make an esophageal varices model so that students can understand the direction of blood flow when portal pressure is normal, and understand the whole process of esophageal varices rupture and bleeding after the portal vein pressure increases, which eventually leads to the opening of the esophageal varices. For example, the Chinese utility model patent CN206833781U discloses an esophageal varices model caused by increased portal vein pressure. Although it only shows the phenomenon of varicose veins by setting 1, a water storage balloon water injection port-19, and a clamp, its structure is relatively complex and cannot show the phenomenon of varicose vein rupture and bleeding, which has certain limitations. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a model that simulates the rupture and bleeding of esophageal and gastric varices in cirrhosis of the liver. It has the advantages of simple structure and easy display, and solves the problem that the existing esophageal and gastric varices models have complex structures and cannot display rupture and bleeding phenomena.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a model simulating ruptured and bleeding of esophageal and gastric varicose veins in cirrhosis of the liver, comprising a model assembly; the model assembly comprising: a placement plate, a liver model being provided on the front surface of the placement plate; a stomach model being provided on the front surface of the placement plate; a first tube body being provided on the rear surface of the placement plate, and the bottom end of the first tube body passing through the placement plate and inserted into the stomach model; a second tube body being provided at the front end of the first tube body, and a plurality of holes being formed on the second tube body; a third tube body being provided on the rear surface of the placement plate, and the bottom end of the third tube body passing through the front surface of the placement plate; a fourth tube body being provided at the bottom of the second tube body, and one end of the fourth tube body passing through the placement plate twice in an S shape and then connected to the liver model; a valve being provided on the outer wall of the fourth tube body, and the bottom end of the third tube body being connected to the outer wall of the fourth tube body.

[0008] Preferably, a sealing cover is provided at the top end of the tube body 1 and the top end of the tube body 3.

[0009] Preferably, the four outer side walls of the tube body are provided with clips.

[0010] Preferably, the second tube body is a valve-shaped hole body.

[0011] Preferably, the stomach model and the liver model are both composed of two parts, a model body and a cover.

[0012] Preferably, the liver model and the stomach model are both provided with a plurality of magnetic sheets.

[0013] Preferably, a limited seat is symmetrically provided at the bottom of the placement plate.

[0014] (3) Beneficial effects

[0015] Compared with the existing technology, the present invention provides a model simulating esophageal and gastric varicose vein rupture and bleeding in cirrhosis of the liver, which has the following beneficial effects:

[0016] The utility model has the advantages of simple structure and convenient display. When in use, blood flows through tube body one and tube body three in turn through tube body two and tube body four and then flows into the liver model. The valve is turned to expand tube body two to form varicose veins. The valve is closed and the blood in tube body two is ejected through multiple holes to form rupture bleeding. It is convenient to display esophageal and gastric varices in cirrhosis of the liver and can also display the phenomenon of rupture bleeding after varicose veins, thereby improving practicality. The utility model has a simple structure and is convenient for operators to use, solving the problem that the existing esophageal and gastric varices models have a complex structure and cannot display rupture bleeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural diagram of some connection methods in the model components of the utility model.

[0019] In the picture:

[0020] 1. Model components; 11. Placement plate; 12. Liver model; 13. Stomach model; 14. Tube 1; 15. Tube 2; 16. Tube 3; 17. Tube 4; 18. Valve;

[0021] 2. Magnetic sheet;

[0022] 3. Limited seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See Figure 1-2 A model simulating esophageal varicose vein rupture and bleeding in cirrhosis of the liver, comprising a model component 1; the model component 1 comprises: a placement plate 11, the front surface of which is provided with a liver model 12; a stomach model 13, provided on the front surface of the placement plate 11; a tube body 14, provided on the rear surface of the placement plate 11, and the bottom end of the tube body 14 passes through the placement plate 11 and is inserted into the stomach model 13; a tube body 2 15, provided at the front end of the tube body 14, and a plurality of holes are opened on the tube body 2 15; a tube body 3 16, provided on the rear surface of the placement plate 11, and the bottom end of the tube body 3 16 passes through the front surface of the placement plate 11; a tube body 4 17, provided on the The bottom of the tube body 2 15, and one end of the tube body 4 17 is S-shaped and passes through the placement plate 11 twice, and is connected to the liver model 12; the valve 18 is arranged on the outer wall of the tube body 4 17, and the bottom end of the tube body 3 16 is connected to the outer wall of the tube body 4 17; the top of the tube body 14 and the tube body 3 16 are both provided with a sealing cover; the outer wall of the tube body 4 17 is provided with a clip; the tube body 2 15 is a valve-type hole body; the stomach model 13 and the liver model 12 are both composed of two parts, a model body and a cover body; a plurality of magnetic sheets 2 are provided on the liver model 12 and the stomach model 13; and a limited seat 3 is symmetrically provided at the bottom of the placement plate 11.

[0026] During use, after blood is poured into the interior through the top of the tube body 14 and the tube body 3 16, the blood in the tube body 14 flows through the tube body 2 15 and the tube body 4 17 in sequence and then flows into the liver model 12. The blood in the tube body 3 16 flows into the tube body 4 17 and then flows into the liver model 12. Then, the valve 18 is turned to reduce the speed of blood outflow from the tube body 4 17. While blood continues to flow into the tube body 14 and the tube body 3 16, the internal pressure of the tube body 14, the tube body 2 15, the tube body 3 16 and the tube body 4 17 increases, causing the tube body 2 15 to expand and form varicose veins. After blood is continuously injected, the blood in the tube body 2 15 flows through the multiple holes. The model is ejected, causing rupture and bleeding. After the display is completed, the model can be disassembled and cleaned. When in use, the tube body 14 and the tube body 3 16 are prevented from falling into debris. When in use, the pressure in the tube body 4 17 is increased by the clamp to improve practicality. When in use, the blood is prevented from overflowing through the hole on the tube body 2 15 during normal transportation. When in use, the front of the stomach model 13 and the liver model 12 are open for easy observation. When in use, the covers of the liver model 12 and the stomach model 13 are fixed to themselves by magnetic attraction to improve practicality. When in use, the placement plate 11 can be placed in any position through the limit seat 3.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A model simulating esophageal and gastric varicose vein bleeding in patients with liver cirrhosis, characterized by: The invention comprises a model component (1); the model component (1) comprises: A placement plate (11) is provided with a liver model (12) on its front surface; A stomach model (13) is arranged on the front surface of the placement plate (11); Tube one (14) is arranged on the rear surface of the placement plate (11), and the bottom end of the tube one (14) passes through the placement plate (11) and is inserted into the stomach model (13); The second tube body (15) is arranged at the front end of the first tube body (14), and the second tube body (15) is provided with a plurality of holes; The third tube body (16) is arranged on the rear surface of the placement plate (11), and the bottom end of the third tube body (16) passes through the front surface of the placement plate (11); The fourth tube body (17) is arranged at the bottom of the second tube body (15), and one end of the fourth tube body (17) is S-shaped and passes through the placement plate (11) twice, and is connected to the liver model (12); The valve (18) is arranged on the outer wall of the fourth tube body (17), and the bottom end of the third tube body (16) is connected to the outer wall of the fourth tube body (17).

2. A model for simulating esophageal and gastric varicose bleeding due to liver cirrhosis according to claim 1, characterized in that: The top ends of the tube body 1 (14) and the tube body 3 (16) are both provided with sealing covers.

3. The model for simulating esophageal and gastric varicose bleeding in cirrhosis of the liver according to claim 1, characterized in that: The outer side wall of the tube body (17) is provided with a clip.

4. The model for simulating esophageal and gastric varicose bleeding due to liver cirrhosis according to claim 1, characterized in that: The second tube body (15) is a valve-type hole body.

5. The model for simulating esophageal and gastric varicose vein bleeding in cirrhosis of the liver according to claim 1, characterized in that: The stomach model (13) and the liver model (12) are both composed of two parts, a model body and a cover.

6. The model for simulating esophageal and gastric varicose bleeding in cirrhosis of the liver according to claim 5, characterized in that: A plurality of magnetic sheets (2) are provided on both the liver model (12) and the stomach model (13).

7. The model for simulating esophageal and gastric varicose vein bleeding in cirrhosis of the liver according to claim 1, characterized in that: A limited seat (3) is symmetrically arranged at the bottom of the placement plate (11).

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