CN207473925U - PTCD training model - Google Patents

Abstract

The utility model discloses a PTCD training model, which belongs to the technical field of medical teaching, and comprises a trunk shell, punctured epidermis, ribs, liver, intrahepatic bile ducts, and blood vessels; the trunk shell corresponds to the area from the chest to the upper abdomen of a human body; Opening, fixed to puncture the epidermis; ribs and liver are fixed in the trunk shell according to their positions in the human body; the intrahepatic bile duct is a branch structure and is located in the liver; one of the branches of the intrahepatic bile duct extends to the outside of the trunk shell; The end of the bile duct extending to the outside of the trunk shell is capped; the blood vessel is placed next to the intrahepatic bile duct; the blood vessel extends through the liver to the outside of the trunk shell; the end of the vessel extending outside the trunk shell is capped; the intrahepatic bile duct and blood vessel All materials are repairable materials, and all of them are filled with colored liquids. The PTCD training model provided by the utility model simulates real human epidermis, organs and bones, and can help trainees quickly and proficiently master the PTCD technology.

Description

A PTCD training model

technical field

The utility model belongs to the technical field of medical teaching, in particular to a PTCD training model.

Background technique

PTCD (percutaneous transhepatic cho l angia l drai nage) is called percutaneous transhepatic biliary drainage in medicine. Under the guidance of X-ray or B-ultrasound or color Doppler ultrasound, a puncture needle is used to percutaneously penetrate the intrahepatic bile duct through the liver, and then a drainage tube is placed to achieve biliary drainage. Wherein, when the puncture is performed, the patient is in a supine position, and the puncture needle passes through the patient's skin and liver, and penetrates into the bile duct in the liver. At present, when students learn puncture techniques, they mainly focus on theoretical study. To master the puncture and catheterization techniques proficiently, many times of practice are needed to achieve accurate puncture and catheter placement. Therefore, in the learning process, a model from the chest cavity to the upper abdomen of the human body is needed to simulate the real human epidermis, organs and bones, so that the students can practice the operation and master the PTCD technology accurately and proficiently.

Utility model content

The utility model aims to provide a PTCD training model, which simulates the real human epidermis, organs and bones, as well as the portal vein system adjacent to the biliary tract in the liver, and can help trainees quickly and skillfully master the PTCD technique.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A PTCD training model disclosed by the utility model comprises a trunk shell, punctured epidermis, ribs, liver, intrahepatic bile ducts and blood vessels; the trunk shell corresponds to the region from the chest to the upper abdomen of a human body; the front of the trunk shell is provided with a first opening , the punctured epidermis is fixed at the first opening; the ribs and the liver are fixed in the trunk shell according to their positions in the human body; the intrahepatic bile duct is a branch structure and is arranged in the liver; One of the branches of the intrahepatic bile duct extends through the liver to the outside of the trunk shell; the end of the intrahepatic bile duct extending to the outside of the trunk shell is provided with a first head; the blood vessel is adjacent to the intrahepatic bile duct Setting; the blood vessel extends through the liver to the outside of the trunk shell; the end of the blood vessel extending to the outside of the trunk shell is provided with a second head; the materials of the intrahepatic bile duct and the blood vessel are all repairable materials; The intrahepatic bile ducts and blood vessels are filled with colored liquid.

Further, the blood vessel is a closed circulation pipeline; a circulation pump is provided in the circulation pipeline outside the shell of the torso.

Preferably, the distance between the punctured epidermis and the liver is 2-5 cm.

Preferably, the diameter of the intrahepatic bile duct is 5-10 mm.

Preferably, the diameter of the blood vessel is 5-10 mm.

Preferably, there are 3-12 ribs.

Preferably, said torso shell comprises a front part and a rear part; said front part and said rear part are detachably connected.

The PTCD training model provided by the utility model is provided with the torso from the chest to the upper abdomen of the human body, the epidermis on the surface of the torso, and the bones, liver, intrahepatic bile ducts and blood vessels inside the torso, injecting colored liquid into the intrahepatic bile ducts and blood vessels, And the ducts of intrahepatic bile ducts and blood vessels are made of repairable materials, simulating the real tissue structure of the human body. During the puncture practice, the students hold the puncture needle in their hands, puncture the epidermis into the liver, and then puncture the intrahepatic bile duct. The whole process is carried out under the real-time monitoring of color Doppler ultrasound, which can clearly show whether the puncture needle enters the intrahepatic bile duct. Since the intrahepatic bile duct is filled with colored liquid, when the puncture position is correct, the puncture needle can suck out the colored liquid, so as to guide students to perform standardized operations. When the blood vessel is punctured, the puncture needle will suck out the colored liquid in the blood vessel, thus prompting the students to make a wrong puncture. The use of repairable materials enables intrahepatic bile ducts and blood vessels to withstand repeated and multiple punctures.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

In the figure: 1 is the trunk shell, 2 is the punctured epidermis, 3 is the rib, 4 is the liver, 5 is the intrahepatic bile duct, 6 is the blood vessel, 7 is the first head, 8 is the second head, and 9 is the circulation pump.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of an embodiment of the present invention. In order to show the internal structure more clearly, some ribs above the liver are omitted in the figure. The PTCD training model that the present embodiment provides comprises: trunk shell 1, puncture epidermis 2, rib 3, liver 4, intrahepatic bile duct 5, blood vessel 6; Described trunk shell 1 corresponds to human chest to upper abdomen region; Described trunk shell 1 The front is provided with a first opening, and the punctured epidermis 2 is fixed at the first opening; the ribs 3 and the liver 4 are fixed in the trunk shell 1 according to their positions in the human body; the intrahepatic bile duct 5 It is a branch structure, which is arranged in the liver 4; one branch of the intrahepatic bile duct 5 passes through the liver 4 and extends to the outside of the trunk shell 1; the intrahepatic bile duct 5 extends to one end of the outside of the trunk shell 1 A first sealing head 7 is provided; the blood vessel 6 is arranged next to the intrahepatic bile duct 5, that is, there is no gap between the blood vessel 6 and the intrahepatic bile duct 5; the blood vessel 6 extends through the liver 4 To the outside of the trunk shell 1; the end of the blood vessel 6 extending to the outside of the trunk shell 1 is provided with a second head 8; the materials of the intrahepatic bile duct 5 and the blood vessel 6 are all repairable materials; the intrahepatic bile duct 5 All be filled with colored liquid in blood vessel 6. The colored liquid in the intrahepatic bile duct is preferably golden yellow, and is injected through the opening at the first head 7; the colored liquid in the blood vessel is preferably red, and is injected through the opening at the second head 8.

Furthermore, the blood vessel 6 is designed as a closed circulation pipeline; the circulation pump 9 is connected in series in the circulation pipeline outside the torso shell, and the red liquid circulates in the blood vessel 6 through the circulation pump 9, simulating the real blood flow of the human body.

In this embodiment, the distance between the punctured epidermis 2 and the liver 4 is 2-5 cm; the diameter of the intrahepatic bile duct 5 is 5-10 mm, and there are 3-12 ribs 3 . In this embodiment, the torso shell includes a front part and a rear part; the front part and the rear part are detachably connected. Both the ribs 3 and the liver 4 are provided with connecting devices; the ribs 3 and the liver 4 are respectively connected to the rear part of the trunk shell 1 through the connecting devices. The ribs 3 are detachably connected to the torso shell 1; the liver 4 is detachably connected to the torso shell 1. Through the detachable connection, it is more convenient to show the organizational structure of the human body to the students and improve the teaching quality.

The PTCD training model provided by the utility model is provided with the torso from the chest to the upper abdomen of the human body, the epidermis on the surface of the torso, and the bones, liver, intrahepatic bile ducts and blood vessels inside the torso, and injects colored liquid into the intrahepatic bile ducts and blood vessels , and the pipelines of intrahepatic bile ducts and blood vessels are made of repairable materials, and a circulating pump is connected in series to allow the colored liquid to flow, which simulates the real tissue structure of the human body and is convenient for color Doppler ultrasound to identify blood vessels and bile ducts. Among them, the setting of blood vessels further improves the PTCD training model, enabling students to more skillfully distinguish blood vessels and intrahepatic bile ducts and avoid puncture errors. During the puncture practice, the students hold the puncture needle in their hands, puncture the epidermis into the liver, and then puncture the intrahepatic bile duct. Since the intrahepatic bile duct is filled with colored fluid, the needle is able to aspirate the colored fluid through it when the puncture is in place. The use of repairable materials enables the intrahepatic bile duct to withstand repeated and multiple punctures, and also enables the blood vessel to return to its original shape when it is accidentally punctured. After the puncture is successful, the trainees can also insert the guide wire along the puncture needle, withdraw the puncture needle, insert the drainage tube along the guide wire, withdraw the guide wire and fix the drainage tube on this model, so as to complete a complete set of PTCD operations. PTCD surgical steps, in order to have a more intuitive and in-depth understanding of PTCD technology. The above operations are all carried out under the real-time monitoring of color Doppler ultrasound, which can clearly show the correctness of each operation step, and can accurately distinguish the intrahepatic bile duct and intrahepatic portal vein branches. To sum up, the PTCD training model provided by the utility model can guide students to perform standardized operations and help students master PTCD technology quickly and proficiently.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the scope of protection of the appended claims of the utility model.

Claims (7)

1. a PTCD training model, is characterized in that, comprises: trunk shell (1), puncture epidermis (2), rib (3), liver (4), intrahepatic bile duct (5), blood vessel (6); Described The trunk shell (1) corresponds to the region from the chest to the upper abdomen of the human body; the front of the trunk shell (1) is provided with a first opening, and the punctured epidermis (2) is fixed at the first opening; the ribs (3) and the liver (4) are all fixed in the trunk shell (1) according to their positions in the human body; the intrahepatic bile duct (5) is a branch structure and is arranged in the liver (4); the intrahepatic bile duct ( 5) One of the branches passes through the liver (4) and extends to the outside of the trunk shell (1); the end of the intrahepatic bile duct (5) extending to the outside of the trunk shell (1) is provided with a first head (7 ); the blood vessel (6) is arranged next to the intrahepatic bile duct (5); the blood vessel (6) extends through the liver (4) to the outside of the trunk shell (1); the blood vessel (6) One end extending to the outside of the trunk shell (1) is provided with a second head (8); the materials of the intrahepatic bile duct (5) and the blood vessel (6) are all repairable materials; the intrahepatic bile duct (5) and All blood vessels (6) are injected with colored liquid. 2. PTCD training model according to claim 1, is characterized in that, described blood vessel (6) is the circulation pipeline of closure; Be positioned at the described circulation pipeline of trunk shell (1) outside and be provided with circulation pump (9). 3. The PTCD training model according to claim 1, characterized in that the distance between the punctured skin (2) and the liver (4) is 2-5 cm. 4. The PTCD training model according to claim 1, characterized in that, the duct diameter of the intrahepatic bile duct (5) is 5-10 mm. 5. The PTCD training model according to claim 1, characterized in that, the pipeline diameter of the blood vessel (6) is 5-10 mm. 6. The PTCD training model according to claim 1, characterized in that there are 3 to 12 ribs (3). 7. PTCD training model according to claim 1, is characterized in that, described trunk shell (1) comprises front part and rear part; Described front part and described rear part are detachably connected.