CN216719323U - Thoracic surgery esophageal cancer operation teaching device - Google Patents

Abstract

The utility model provides a thoracic surgery esophageal cancer operation demonstration device, and belongs to the field of medical instruments. The teaching device includes: the support frame is arranged on the support frame and comprises an airway model, an esophagus model, an aortic arch model and a stomach model; the trachea model includes: a main trachea, a left main trachea and a right main trachea; the trachea model is positioned in front of the esophagus model and can demonstrate esophageal and tracheal fistulas and anastomotic fistulas; the esophagus model is of a tubular structure, the upper end of the esophagus model is flush with the upper end of a main trachea in the trachea model and is positioned above the aortic arch model, and the lower end of the esophagus model extends downwards and is connected with the stomach model; the esophagus is formed by splicing a plurality of parts, the stomach is divided into two parts, and the excision part of the stomach and the postoperative anastomosis condition in the esophagus cancer two-incision and three-incision operation can be demonstrated; the front side of the trachea model is fixedly connected with the rear side of the aortic arch model, one side of the trachea model is hinged with one side of the esophagus model, and explanation of relevant knowledge of the three-dimensional esophageal cancer operation can be provided.

Description

A teaching device for esophageal cancer surgery in thoracic surgery

technical field

The utility model belongs to the field of teaching models for surgical nursing, in particular to a teaching device for esophageal cancer surgery in thoracic surgery.

Background technique

Esophageal cancer resection is a fourth-level surgical operation, which is complicated and difficult, and requires reconstruction of the physiological structure after surgery. Complexity and abstraction are the difficulties and the key points in the nursing teaching work of thoracic surgery.

The aortic arch is a continuation of the ascending aorta and is located in the superior mediastinum behind the manubrium. From the height of the second sternocostal joint on the right side, it turns to the left rear in an arcuate shape, reaching the lower edge of the left side of the fourth thoracic vertebra, and then turns downward to become the descending aorta. The total length of the aortic arch is about 5 to 6 cm. The inferior wall of the aortic arch is connected with the pulmonary artery bifurcation by the ligamentum arteriosus (the remains of the ductus arteriosus after atresia), and it is adjacent to the left bronchus. On the convex side (upper wall) of the aortic arch, three branches of the brachiocephalic trunk (innominate artery), left common carotid artery and left subclavian artery arise from right to left, respectively. They are the main arteries that supply blood to the head, neck and upper extremities.

The respiratory organ from the trachea to the alveoli first begins with a groove-like depression (lung gro-ove) in the ventral wall of the foregut (later developed into the esophagus). In later periods, the esophagus-tracheal opening was completely closed by the esophagotracheal septum extending from the rear, leaving only the larynx. If this atresia is not complete, the opening between the trachea and esophagus is left outside the larynx, which is an esophagotracheal fistula.

In addition, the scope of surgical resection of esophageal cancer is to remove part of the esophagus and part of the stomach, and then the esophagus and stomach are anastomosed. Esophageal cancer resection includes two incisions and three incisions. Two incisions and three incisions mainly refer to the incision positions on the skin surface. Usually, the two incisions correspond to the subarch anastomosis, that is, the anastomosis between the esophagus and the stomach is located below the aortic arch, and the three incisions correspond to the subarch anastomosis. Supraarch anastomosis, that is, the anastomosis of the esophagus and stomach is located above the aortic arch.

Moreover, if the position of the suture after surgery does not grow well, an anastomotic fistula will occur if it is split, and the split where the stomach and esophagus are connected is gastroesophageal anastomotic fistula. Anastomotic fistula.

However, the existing teaching mode focuses on the picture display and the teacher's explanation, only the plane schematic diagram and the lack of three-dimensional teaching tools, which leads to the students' lack of understanding of the surgery and the lack of understanding of the reconstruction of the digestive tract, which affects the understanding of the surgery. The understanding of the principle of postoperative complications is not conducive to the observation and postoperative guidance of the postoperative nursing of esophageal cancer in thoracic surgery.

Moreover, existing teaching tools cannot perform the following functions at the same time:

1. Demonstrate the scope of two-incision and three-incision surgical resection and postoperative anastomosis for esophageal cancer;

2. Demonstrate esophagotracheal fistula and anastomotic fistula respectively;

3. Demonstrate the cause of gastric content reflux after esophageal cancer surgery.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems in the prior art, and to provide a teaching device for esophageal cancer surgery in thoracic surgery, which can demonstrate the resection part of the stomach and the postoperative anastomosis in the two-incision and three-incision operations for esophageal cancer; At the same time, it can demonstrate esophagotracheal fistula and anastomotic fistula, and can help demonstrate the cause of postoperative reflux after esophageal cancer.

The utility model is achieved through the following technical solutions:

The utility model provides a teaching device for esophageal cancer surgery in thoracic surgery, which is characterized in that: the teaching device comprises: a support frame, and a trachea model, an esophagus model, a aortic arch model, and a stomach model installed on it;

The trachea model includes: main trachea, left main bronchus, and right main bronchus;

The aortic arch is an arc-shaped tube;

The trachea model is located in front of the esophagus model, and the aortic arch model is located in front of the main trachea in the trachea model;

The esophagus model is a tubular structure, the upper end of which is flush with the upper end of the main trachea in the trachea model, and is located above the aortic arch model, and the lower end of the esophagus model has been extended downwards and is connected with the stomach model;

The esophagus is formed by inserting a plurality of parts, and the stomach is divided into two parts;

A hook is provided on the upper end of the esophagus;

The front side of the trachea model is fixedly connected with the rear side of the aortic arch model, and one side of the trachea model is hinged with one side of the esophagus model.

A further improvement of the present utility model is:

The esophagus model is a hollow tubular structure;

The esophagus model includes three sections of tubes from top to bottom, which are: a first section of tube, a second section of tube and a third section of tube, and the three are connected in sequence;

The connection position of the first section of tube and the second section of tube is located above the aortic arch model, and the connection position of the second section of tube and the third section of the tube is located below the aortic arch model;

The upper ends of the second-section pipe and the third-section pipe are respectively provided with annular protrusions.

The further improvement of the present utility model is:

The first section of the tube of the esophagus model is connected with the main trachea through a hinge;

One side of the hinge is connected with the upper side wall of the esophagus model, and the other side is connected with the side wall of the main trachea.

A further improvement of the present utility model is:

The upper part of the first section of the tube of the esophagus model is provided with a hole as an esophagus simulated fistula, and a silicone plug is installed in the esophagus simulated fistula;

The main trachea is provided with a hole as a trachea simulated fistula, and a silicone plug is installed in the tracheal simulated fistula;

The esophagus simulated fistula and the tracheal simulated fistula are arranged oppositely.

A further improvement of the present utility model is:

the stomach model includes a flexible tube and a bladder-like structure connected thereto;

The hose is made of elastic silica gel, and the inner diameter of the hose is smaller than the outer diameter of the lower end of the third section of the tube of the esophagus model;

The inside of the hose is provided with anti-skid particles.

The further improvement of the present utility model is:

the bladder-like structure includes an upper bladder and a lower bladder, the upper bladder being connected above the lower bladder;

The upper bag is made of hard transparent plastic, and the lower bag is made of soft transparent silica gel;

The top of the upper bag is a closed end, the top of the closed end is provided with a top opening, the lower end of the upper bag is an open end, and a ring-shaped Velcro is arranged on the outer wall of the open end;

The upper end of the lower bag is an open end, the lower end is a closed end, a bottom opening is arranged at the bottom of the closed end, and a ring-shaped Velcro is arranged on the inner wall of the open end;

The velcro comprises a half-ring-shaped velcro surface and a half-ring velcro hook surface, and the velcro's velcro surface and the hook surface are enclosed to form a ring-shaped velcro;

A plurality of particulate matter and a screen are placed in the inner cavity of the lower bladder, the screen being positioned at the bottom opening.

A further improvement of the present utility model is:

The capsule structure includes a left capsule and a right capsule, and the left capsule is connected to the left side of the right capsule;

The left bag is made of hard transparent plastic, and the right bag is made of soft transparent silicone;

The left side of the left bag is a closed end, a top opening is provided on the top of the closed end, and the right side of the left bag is an open end;

A ring-shaped Velcro is arranged on the outer wall of the open end of the left bag;

The left side of the right bag is an open end, the right side is a closed end, a bottom opening is arranged at the bottom of the closed end, and an annular Velcro is arranged on the inner wall of the open end;

The velcro comprises a half-ring-shaped velcro surface and a half-ring velcro hook surface, and the velcro's velcro surface and the hook surface are enclosed to form a ring-shaped velcro;

A plurality of particulate matter and a filter screen are placed in the inner cavity of the right bag, and the filter screen is arranged at the bottom opening.

The further improvement of the present utility model is:

The support frame includes: a base and a panel;

The base is connected to the bottom of the panel and is perpendicular to the panel;

The area of the panel is larger than the area after the esophagus model, the stomach model, the trachea model, and the aortic arch model are connected;

The front face of the panel is provided with a semicircular groove in cross-section, and the shape of the groove matches the shape of the esophagus model and the stomach model.

A further improvement of the present utility model is:

The main trachea, the left main bronchus and the right main bronchus are all hollow tubular structures;

The upper end of the right main bronchus is communicated with the bottom end of the main trachea, and the lower end is divided into two branch pipes;

The upper end of the left main bronchus is communicated with the bottom end of the main trachea.

The further improvement of the present utility model is:

The esophagus model, trachea model, and aortic arch model are all made of hard plastic.

Compared with the prior art, the beneficial effects of the present utility model are: the utility model can demonstrate the gastric resection and postoperative anastomosis in the two-incision and three-incision operations for esophageal cancer, and demonstrate the reconstruction process and final effect of the digestive tract. It is beneficial to grasp and understand the difficulties and key points of postoperative care for esophageal cancer; to demonstrate esophagotracheal fistula and anastomotic fistula; to assist in demonstrating the causes of postoperative reflux after esophageal cancer. By using the utility model to teach and demonstrate, students can be provided with a three-dimensional, intuitive and vivid explanation of the relevant knowledge of esophageal cancer surgery, so as to better grasp the relevant knowledge, serve clinical services, and provide patients with better services.

Description of drawings

Fig. 1---the structural representation of the teaching device of thoracic surgery esophageal cancer operation teaching device according to the present utility model;

Fig. 2---the structural representation between the trachea model and the esophagus model in the thoracic surgery esophagus cancer operation teaching device of the present utility model;

Fig. 3---the thoracic surgery esophagus cancer operation teaching device of the present utility model demonstrates the structural schematic diagram after the two incisions are surgically removed;

Fig. 4---the thoracic surgery esophagus cancer operation teaching device of the present utility model demonstrates the structural schematic diagram after the three-incision surgical resection;

Fig. 5---the structural representation of the esophagus model in the thoracic surgery esophagus cancer operation teaching device of the present utility model;

Fig. 6---the stomach model structural representation in the third embodiment of the teaching device for esophageal cancer surgery in thoracic surgery according to the present utility model;

Fig. 7--the stomach model structure schematic diagram in the fourth embodiment of the teaching device for esophageal cancer operation in thoracic surgery according to the present utility model;

Among them: 1 - aortic arch model, 2 - trachea model, 3 - esophagus model; 4 - filter screen, 5 - water stop clip, 6 - stomach model, 7 - hinge.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1, the present invention provides a teaching device for esophageal cancer surgery in thoracic surgery, the teaching device includes: a support frame, and a trachea model 2, an esophagus model 3, aortic arch model 1, Stomach Model 6.

The trachea model 2 and the aortic arch model 1 are used to demonstrate the positional relationship between the esophagus, the trachea, and the aortic arch in the human body. Therefore, the tracheal model 2 and the aortic arch model 1 can all use schematic structures. Specifically, the trachea The model 2 includes: the main trachea, the left main bronchus, and the right main bronchus, the aortic arch is a hollow tubular structure, and the aortic arch model 1 adopts an arc-shaped tube; the trachea model 2 is located in front of the esophagus model 3, and the aortic arch model 1 is located in front of the main trachea in trachea model 2.

The esophagus model 3 is a tubular structure, the upper end of which is flush with the upper end of the main trachea in the trachea model 2 and located above the aortic arch model 1 , and the lower end of which extends downward and is connected to the stomach model 6 .

The upper end of the esophagus is provided with a hook, which is hung on a support frame during use, and the teaching device can be hung.

For the convenience of display, the trachea model 2 and the aortic arch model 1 are designed into an integrated structure, that is, the front side of the trachea model 2 is fixedly connected with the rear side of the aortic arch model 1, and one side of the trachea model 2 is hinged with one side of the esophagus model 3. When not displayed, the trachea model 2 and the aortic arch model 1 are located on the front side of the esophagus. After the trachea model 2 and the aortic arch model 1 are opened, the esophagus can be displayed.

The esophagus is formed by inserting multiple parts, and the stomach is divided into two parts. By disassembling part of the structure in the esophagus and the stomach, and then connecting the remaining structures together, it is possible to demonstrate the two-incision and three-incision surgical resection of esophageal cancer. range and postoperative anastomosis.

Embodiments of the present utility model are as follows:

[Example 1]

The esophagus model 3 is a hollow tubular structure.

As shown in FIG. 5 , the esophagus model 3 includes three sections of tubes from top to bottom, namely: the first section of the tube, the second section of the tube and the third section of the tube, which are connected in sequence, wherein the first section of the tube is connected to the third section of the tube The connection position of the second tube is located above the aortic arch, and the connection position of the second tube and the third tube is located below the aortic arch.

Specifically, the upper ends of the second and third tubes are respectively provided with annular protrusions. For the connection of the second pipe, the annular protrusion on the upper end of the third pipe is inserted into the inner cavity of the lower end of the second pipe to realize the connection between the second pipe and the third pipe.

As shown in FIGS. 2 and 5 , in order to clearly reflect the structure of the esophagus model 3 , the structures of the aortic arch model 1 and the trachea model 2 are not shown in FIG. 2 . Since the trachea model 2 and the aortic arch model are located on the front side of the esophagus, in order to better display the esophagus, as shown in FIG. The hinge 7 is preferably a damping hinge, one side of the hinge 7 is connected to the upper side wall of the esophagus model 3, and the other side is connected to the side wall of the main trachea. The damping hinge is connected with the esophagus model 3 and the main trachea by existing methods such as bonding.

During use, by adjusting the rotation angle of the damping hinge, the trachea model 2, the aortic arch model 1 and the esophagus model 3 can be separated at any angle within the range of 0-180 degrees, that is, the trachea model 2 and the aortic arch model 1 are separated from the esophagus model 3. The front side is rotated to the side of the esophagus model 3, so that the structure of the esophagus model 3 can be displayed more intuitively.

If the effect is more realistic, the necked section can be set on the esophagus model 3 according to the positions of the three physiological stenoses on the human esophagus. The three physiological stenoses are not shown in the figure of the present invention.

Further, in order to demonstrate esophagotracheal fistula, a hole is opened in the upper part of the first section of the esophagus model 3 as an esophagus simulated fistula, a silicone plug is installed in the esophagus simulated fistula, and a corresponding esophagus simulated fistula is opened on the main trachea. There is a hole as the trachea simulated fistula, and a silicone plug is installed in the tracheal simulated fistula. The esophagus simulated fistula and the tracheal simulated fistula are set relative to each other. When the silicone plugs on the tracheal simulated fistula and the esophageal simulated fistula are not opened, the esophagus model 3 and the tracheal model 2 cannot be connected. When the silicone plugs of the esophagus are opened, the simulated esophagus and the simulated trachea are connected, and then the esophagus model 3 and the trachea model 2 are connected, which can be used to simulate esophagotracheal fistula.

[Example 2]

The stomach model 6 includes a flexible tube and a sac-like structure connected thereto, and the overall shape of the sac-like structure is similar to that of a human stomach;

As shown in FIG. 6 , the capsule structure includes an upper capsule and a lower capsule, the upper capsule is connected above the lower capsule; the upper capsule is made of hard transparent plastic, and the lower capsule is made of soft transparent silicone The top of the upper bag is a closed end, and the top of the closed end is provided with a top opening, and the lower end of the upper bag is an open end, and the outer wall of the open end is provided with an annular Velcro, specifically a half-ring Velcro The rough surface of the hook, the hook surface of the half-ring Velcro, the hook surface and the hook surface of the Velcro are enclosed into a whole ring.

The upper end of the lower bag is an open end, the lower end is a closed end, a bottom opening is provided at the bottom of the closed end, and a ring-shaped Velcro is provided on the inner wall of the open end, which specifically includes the rough surface of the half-annular Velcro and The hook surface of the half-ring velcro, the rough surface and the hook surface of the velcro are enclosed into a whole ring.

A plurality of particles and a filter screen 4 are placed in the inner cavity of the lower bag, and the filter screen 4 is arranged at the bottom opening to prevent the particles from leaking out of the bottom opening.

When installing, align the open end of the lower bag with the open end of the upper bag, and paste the hook surface of the Velcro on the open end of the lower bag with the hair surface of the Velcro It is pasted with the hook surface of the Velcro on the open end of the upper bag, so that the upper bag and the lower bag are connected to form a whole bag-like structure. In FIG.

The hose is made of elastic silica gel, the inner diameter of the hose is smaller than the outer diameter of the lower end of the third tube of the esophagus model 3 , and a number of anti-skid particles are arranged on the inside of the hose. During installation, utilize the elasticity of silica gel to cover the upper end of the hose on the lower end of the third section of the tube of the esophagus model 3, realize the connection between the esophagus model 3 and the stomach model 6, utilize the friction force between the anti-skid particles and the esophagus model 3 , to ensure that the stomach model 6 will not fall off the lower end of the esophagus model 3 due to gravity. The lower end of the hose is communicated with the top opening of the upper bag, and a detachable water stop clip 5 is provided on the part of the outer part of the hose that is not sleeved on the lower end of the esophagus model 3 for simulating the cardia of the human stomach, When the water stop clip 5 is closed, the closure of the cardia can be simulated, and objects in the stomach cannot enter the esophagus upward. When the water stop clip 5 is opened, it can simulate the food passing through the cardia from the esophagus into the stomach.

When it is necessary to demonstrate the formation of subarch anastomosis by two incisions, separate the second tube and the third tube of the esophagus model 3, separate the upper and lower capsules, and separate the third tube and the hose and upper tube connected to it. The capsules are removed together, and finally the hair surface of the Velcro at the open end of the lower capsule and the hook surface of the Velcro are bonded to each other, and a small part is left unbonded. The lower end of the second section of the pipe, and a clamp is used to fix the opening and the lower end of the second section of the pipe, as shown in Figure 3, in this way, the part where the rough surface of the Velcro sticker and the hook surface of the Velcro sticker are bonded to each other is simulated. The suture on the stomach, connecting the unbonded part with the second tube through the clamp simulates the suture of the remaining stomach and esophagus after the resection, and then shows the reconstruction process of the digestive tract and the final result, which is beneficial to the postoperative care of esophageal cancer Difficulties and key points of mastery and understanding. And since the third section of tube, hose, and upper bladder have all been removed, there is no water stop clip 5 in the remaining part, and the cardia cannot be simulated, so the objects in the lower bladder can enter through the opening. In the esophagus, this can help demonstrate the cause of reflux after esophageal cancer surgery. In FIG. 3 , the clamp is not shown, but a plurality of short line segments are used to illustrate the suture of the stomach and the suture position of the stomach and the esophagus.

Further, during the presentation, after the simulation of the subarch anastomosis is completed, the Velcro that has been pasted on the lower capsule can be torn apart, so as to simulate the anastomotic fistula of the stomach, and the clip at the connection between the lower capsule and the esophagus can be removed. The cuff is loosened so that the lower pouch is not fully connected to the esophagus, which can simulate a gastroesophageal anastomotic leak.

[Example 3]

The stomach model 6 includes a flexible tube and a sac-like structure connected thereto, and the overall shape of the sac-like structure is similar to that of a human stomach;

As shown in FIG. 7 , the bladder-like structure includes a left bladder and a right bladder, and the left bladder is connected to the left side of the right bladder. The left bag is made of hard transparent plastic, and the right bag is made of soft transparent silica gel; the left side of the left bag is a closed end, and a top opening is provided on the top of the closed end, and the left bag is The right side of the bag is the open end; the outer wall of the open end of the left bag is provided with a looped Velcro, specifically including the rough surface of the half-ring Velcro, the hook surface of the half-ring Velcro, the The rough surface and the hook surface enclose the whole ring.

The left side of the right bag is the open end, the right side is the closed end, the bottom of the closed end is provided with a bottom opening, and the inner wall of the open end is provided with an annular velcro, specifically including a half-ring velcro. The rough surface and the hook surface of the half-ring Velcro, the rough surface and the hook surface of the Velcro are enclosed into a whole ring.

A plurality of particles and a filter screen 4 are placed in the inner cavity of the right bag, and the filter screen 4 is arranged at the bottom opening to prevent the particles from leaking out of the bottom opening.

When installing, align the open end of the left bag with the open end of the right bag, paste the hook surface of the Velcro on the open end of the right bag with the hair surface of the Velcro The hair surface of the Velcro is pasted with the hook surface of the Velcro at the open end of the left sac, so that the left sac and the right sac are connected to form a whole sac-like structure.

The hose is made of elastic silica gel, the inner diameter of the hose is smaller than the outer diameter of the lower end of the third tube of the esophagus model 3 , and a number of anti-skid particles are arranged on the inside of the hose. During installation, utilize the elasticity of silica gel to cover the upper end of the hose on the lower end of the third section of the tube of the esophagus model 3, realize the connection between the esophagus model 3 and the stomach model 6, utilize the friction force between the anti-skid particles and the esophagus model 3 , to ensure that the stomach model 6 will not fall off the lower end of the esophagus model 3 due to gravity. The lower end of the hose is communicated with the top opening of the sac-like structure, and a detachable water stop clip 5 is provided on the part of the outer part of the hose that is not sleeved on the bottom of the esophagus model 3, which is used to simulate the cardia of the human stomach. , when the water stop clip 5 is closed, the closure of the cardia can be simulated, and the objects in the stomach cannot enter the esophagus upward. When the water stop clip 5 is opened, the food can be simulated from the esophagus through the cardia into the stomach.

As shown in Figure 4, in order to clearly show the structure of the three incisions to form an anastomosis on the arch, the structures of the aortic arch model 1 and the trachea model 2 are not drawn in Figure 4, but only the first segment of the esophagus model 3 and the rest are drawn. Stomach Model 6. When it is necessary to demonstrate the three incisions to form supra-arch anastomosis, separate the second tube of esophagus model 3 from the first tube, and at the same time separate the left and right capsules, and separate the second tube and the first tube of esophagus model 3. The three sections of tube, the hose connected to it, and the left bladder are removed together. Finally, the rough surface of the Velcro on the open end of the right bladder and the hook surface of the Velcro are bonded to each other, and a small part is left unbonded. The bonded part forms an opening, and the opening is sleeved on the lower end of the first section of the tube, and a clamp is used to fix the opening and the lower end of the first section of the tube, so that the rough surface of the Velcro and the hook surface of the Velcro The parts that are bonded to each other simulate the suture on the stomach, and the unbonded part is connected to the first segment of the tube by a clamp to simulate the suture of the remaining stomach and esophagus after the resection, and then the reconstruction process of the digestive tract and the final result are shown. It is beneficial to grasp and understand the difficulties and key points of postoperative nursing of esophageal cancer. And because the second tube, the third tube, the hose, and the left bladder have all been removed, there is no water stop clip 5 in the remaining part, and the cardia cannot be simulated, so the right bladder Objects in the esophagus can pass through the opening into the esophagus, which can help demonstrate the cause of reflux after esophageal cancer surgery. In FIG. 4 , the clamp is not shown, but a plurality of short line segments are used to illustrate the suture of the stomach and the suture position of the stomach and the esophagus.

Further, during the demonstration, after the simulation of the anastomosis on the arch, the Velcro that has been pasted on the right capsule can be torn apart, so as to simulate the anastomotic leakage of the stomach, and the connection between the right capsule and the esophagus can be made. The clamp of the esophagus is loosened so that the right pouch is not completely connected to the esophagus, which can simulate a gastroesophageal anastomotic leakage.

The utility model can be equipped with two stomach models 6, as shown in the second and third embodiments respectively, and different stomach models 6 can be used when demonstrating supra-arch anastomosis and sub-arch anastomosis.

[Example 4]

The support frame includes: a base and a panel.

The base is connected to the bottom of the panel and is perpendicular to the panel, and plays the role of supporting the panel. The area of the panel is larger than the area of the esophagus model 3 , the stomach model 6 , the trachea model 2 , and the aortic arch model 1 after being connected.

When in use, hang the hook on the upper end of the esophagus model 3 on the top of the panel. Since the aortic arch model 1 and the trachea model 2 are connected with the esophagus model 3 through the hinge 7, and the stomach model 6 is connected with the esophagus model 3 through the hose, all the Components are displayed on the panel.

Further, in order to prevent the esophagus model 3, the trachea model 2, the stomach model 6, the aortic arch model 1 from rolling, a groove with a semicircular cross-sectional shape can be opened on the front of the panel, and the shape of the groove is the same as that of the esophagus model 3. , the shape of the stomach model 6 is matched, after the hook on the top of the esophagus model 3 is hung on the top of the panel, the rear of the esophagus model 3 and the rear of the stomach model 6 can be placed in the groove, thereby avoiding the esophagus model 3, Trachea model 2, stomach model 6, and aortic arch model 1 rolled.

[Example 5]

The main trachea, the left main bronchus and the right main bronchus are all hollow tubular structures.

The upper end of the right main bronchus communicates with the bottom end of the main trachea, the lower end is divided into two branch pipes for showing connection with the two lobes of the right lung, and the upper end of the left main bronchus communicates with the bottom end of the main trachea. The main trachea, the left main bronchus and the right main bronchus can be connected by fusion.

[Example 6]

The esophagus model 3, the trachea model 2, and the aortic arch model 1 are all made of hard plastic, and can be realized by using the existing 3D printing technology.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected integrally; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, unless otherwise specified, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention .

Finally, it should be noted that the above technical solution is only an embodiment of the present invention. For those skilled in the art, on the basis of the principles disclosed in the present invention, it is easy to make various types of improvements or modifications. Variations are not limited to the structures described in the above-mentioned specific embodiments of the present invention, so the foregoing descriptions are only preferred and have no limiting meaning.

Claims (10)

1. The utility model provides a thoracic surgery esophageal carcinoma operation teaching device which characterized in that: the teaching device includes: the support frame, and an air tube model, an esophagus model, an aortic arch model and a stomach model which are arranged on the support frame;

the trachea model includes: a main trachea, a left main trachea and a right main trachea;

the aortic arch is an arc-shaped tube;

the trachea model is positioned in front of the esophagus model, and the aortic arch model is positioned in front of a main trachea in the trachea model;

the esophagus model is of a tubular structure, the upper end of the esophagus model is flush with the upper end of a main trachea in the trachea model and is positioned above the aortic arch model, and the lower end of the esophagus model extends downwards and is connected with the stomach model;

the esophagus is formed by splicing a plurality of parts, and the stomach is divided into two parts;

a hook is arranged at the upper end of the esophagus;

the front side of the trachea model is fixedly connected with the rear side of the aortic arch model, and one side of the trachea model is hinged with one side of the esophagus model.

2. The thoracic esophageal cancer surgical teaching device of claim 1, wherein:

the esophagus model is of a hollow tubular structure;

the esophagus model comprises three sections of tubes from top to bottom, which are respectively: the first section of pipe, the second section of pipe and the third section of pipe are connected in sequence;

the connecting position of the first section of pipe and the second section of pipe is positioned above the aortic arch model, and the connecting position of the second section of pipe and the third section of pipe is positioned below the aortic arch model;

and the upper ends of the second section of pipe and the third section of pipe are respectively provided with an annular bulge.

3. The thoracic esophageal cancer surgical teaching device of claim 2, wherein:

the first section of pipe of the esophagus model is connected with the main air pipe through a hinge;

the side of one side of the hinge is connected with the side wall of the upper part of the esophagus model, and the side of the other side of the hinge is connected with the side wall of the main trachea.

4. The thoracic surgery esophageal cancer surgery teaching device of claim 2, wherein:

a hole is formed in the upper part of a first section of tube of the esophagus model and serves as an esophagus simulation fistula, and a silica gel plug is installed in the esophagus simulation fistula;

a hole is formed in the main air pipe to serve as an air pipe simulation fistula, and a silica gel plug is installed in the air pipe simulation fistula;

the esophagus simulated fistula and the trachea simulated fistula are oppositely arranged.

5. The thoracic esophageal cancer surgical teaching device of claim 1, wherein:

the stomach model comprises a hose and a saccular structure connected with the hose;

the hose is made of elastic silica gel, and the inner diameter of the hose is smaller than the outer diameter of the lower end of the third section of the tube of the esophagus model;

the inner side of the hose is provided with anti-skid particles.

6. The thoracic esophageal cancer surgical teaching device of claim 5, wherein:

the bladder structure comprises an upper bladder and a lower bladder, the upper bladder being connected above the lower bladder;

the upper bag is made of hard transparent plastic, and the lower bag is made of soft transparent silica gel;

the top end of the upper bag is a closed end, the top of the closed end is provided with a top opening, the lower end of the upper bag is an open end, and the outer wall of the open end is provided with an annular magic tape;

the upper end of the lower bag is an open end, the lower end of the lower bag is a closed end, the bottom of the closed end is provided with a bottom opening, and the inner wall of the open end is provided with an annular magic tape;

the magic tape comprises a half annular rough surface of the magic tape and a half annular hook surface of the magic tape, and the rough surface and the hook surface of the magic tape surround to form the annular magic tape;

a plurality of particles and a filter screen are placed in the inner cavity of the lower bag, and the filter screen is arranged at the opening at the bottom.

7. The thoracic esophageal cancer surgical teaching device of claim 5, wherein:

the saccular structure comprises a left part sac and a right part sac, and the left part sac is connected to the left side of the right part sac;

the left bag is made of hard transparent plastic, and the right bag is made of soft transparent silica gel;

the left side of the left part bag is a closed end, the top of the closed end is provided with a top opening, and the right side of the left part bag is an open end;

an annular magic tape is arranged on the outer wall of the opening end of the left bag;

the left side of the right bag is an open end, the right side of the right bag is a closed end, the bottom of the closed end is provided with a bottom opening, and the inner wall of the open end is provided with an annular magic tape;

the magic tape comprises a half annular rough surface of the magic tape and a half annular hook surface of the magic tape, and the rough surface and the hook surface of the magic tape surround to form the annular magic tape;

a plurality of particles and a filter screen are placed in the inner cavity of the right bag, and the filter screen is arranged at the opening at the bottom.

8. The thoracic esophageal cancer surgical teaching device of claim 1, wherein:

the support frame includes: a base and a panel;

the base is connected with the bottom of the panel and is vertical to the panel;

the area of the panel is larger than the area of the esophagus model, the stomach model, the trachea model and the aortic arch model after connection;

the front surface of the panel is provided with a groove with a semicircular cross section, and the shape of the groove is matched with the shapes of the esophagus model and the stomach model.

9. The thoracic esophageal cancer surgical teaching device of claim 1, wherein:

the main air pipe, the left main air pipe and the right main air pipe are all hollow tubular structures;

the upper end of the right main air pipe is communicated with the bottom end of the main air pipe, and the lower end of the right main air pipe is divided into two branch pipes;

the upper end of the left main air pipe is communicated with the bottom end of the main air pipe.

10. The thoracic esophageal cancer surgical teaching device of claim 1, wherein:

the esophagus model, the trachea model and the aortic arch model are all made of hard plastics.

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