Aortic dissection model display device

Abstract

The invention belongs to the technical field of medical teaching models, and provides an aortic dissection model display device, which comprises a support table mechanism, an aortic blood vessel model is arranged in the support table mechanism, a dissection cavity is formed in the outer wall of the aortic blood vessel model, two groups of through holes are formed in the side wall of the aortic blood vessel model from top to bottom, and the two through holes are communicated with the dissection cavity; the liquid supply assembly comprises a liquid storage tank and a water pump, the liquid outlet end of the water pump is communicated with the liquid inlet of the aorta blood vessel model, and the liquid outlet end of the water pump is communicated with the liquid outlet of the aorta blood vessel model; and the intimal rupture simulation assembly comprises a cover plate detachably connected to the through hole, a via hole is formed in the cover plate, an opening control mechanism is arranged between the via hole and the cover plate, and the opening control mechanism is used for communicating the aorta blood vessel model with the interlayer cavity. The device can dynamically and intuitively simulate the process that the blood flow breaks through the inner membrane crevasse to enter the interlayer cavity, and is beneficial to understanding of learners.

Description

Technical Field

[0001] This invention belongs to the field of medical teaching model technology, and in particular relates to a display device for aortic dissection model. Background Technology

[0002] Aortic dissection is a critical cardiovascular disease characterized by a tear in the aortic intima, allowing blood to enter the aortic wall media and form a dissecting hematoma (false lumen) that extends along the longitudinal axis of the aorta. The disease has a rapid onset and high mortality rate, making early diagnosis and proper treatment crucial. Therefore, a thorough understanding of the anatomical structure and hemodynamic changes of aortic dissection is of paramount importance in the training of medical students and clinicians, as well as in public health education.

[0003] Currently, most aortic dissection models available on the market are static anatomical models or wall charts. While these models can demonstrate the basic morphology of the dissection, static models cannot dynamically and intuitively show how blood flows from the aorta through the intimal tear into the dissection lumen, or how the dissection lumen expands due to the impact of blood flow. This creates obstacles for learners in understanding this dynamic disease process, limiting the effectiveness of teaching and popular science education. Summary of the Invention

[0004] The purpose of this invention is to provide a device for displaying aortic dissection models to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following solution: an aortic dissection model display device, comprising: A support mechanism is provided, wherein an aortic vessel model is provided inside the support mechanism, a dissecting cavity is provided on the outer wall of the aortic vessel model, and two sets of through holes are provided on the side wall of the aortic vessel model from top to bottom, and both through holes are connected to the dissecting cavity. The liquid supply assembly includes a liquid storage tank and a water pump. The outlet of the water pump is connected to the inlet of the aortic vascular model, and the outlet of the water pump is connected to the outlet of the aortic vascular model. The water pump is used to circulate the liquid in the liquid storage tank within the aortic vascular model. The intimal rupture simulation component includes a cover plate detachably connected to the through hole, the cover plate having a through hole, and an opening control mechanism provided between the through hole and the cover plate, the opening control mechanism being used to connect the aortic vessel model and the dissection lumen.

[0006] Preferably, the aortic vessel model is made of a transparent rigid material, and the dissecting lumen is made of a transparent soft material.

[0007] Preferably, the opening control mechanism includes two sets of soft pads, one side of each of the two soft pads is fixedly connected to the two opposite sidewalls of the through hole, the near ends of the two soft pads abut against each other, a baffle is slidably connected to one side of the cover plate, the baffle is used to block the through hole, and a sliding drive is provided between the baffle and the cover plate, the sliding drive is used to move the baffle away from the through hole; Along the flow direction of the liquid in the aortic vessel model, the baffle on the cover plate near the upstream is located in the aortic vessel model, and the baffle on the cover plate near the downstream is located in the interstitial cavity.

[0008] Preferably, the sliding drive includes a groove along the side wall of the cover plate, the groove being parallel to the side wall of the cover plate, a baffle being slidably connected in the groove, a spring being fixedly connected between the baffle and the bottom of the groove, the spring being used to pull the baffle into the groove, and a limiting member being provided in the cover plate, the limiting member being used to prevent the baffle from sliding into the groove when the baffle extends out of the groove.

[0009] Preferably, the limiting member includes a piston cavity formed within the cover plate, the piston cavity being perpendicular to the slide groove, a piston being slidably connected within the piston cavity, a stop rod being fixedly connected to one end of the piston near the baffle, the other end of the stop rod being positioned corresponding to the side wall of the slide groove and the end of the baffle near the spring, and a flow channel being formed within the cover plate, one end of the flow channel penetrating the side wall of the cover plate away from the baffle, and the other end of the flow channel communicating with the piston cavity and being positioned near the slide groove.

[0010] Preferably, the support mechanism includes a base, a plurality of support rods are vertically fixedly connected to the top of the base, a top plate is fixedly connected to the top of the plurality of support rods, the liquid storage tank is disposed inside the base, a deflection drive is disposed between the top plate and the aortic blood vessel model for driving the aortic blood vessel model to deflect, and a connecting pipe is disposed on the base that communicates with the liquid outlet of the aortic blood vessel model.

[0011] Preferably, the deflection drive includes a support plate fixedly connected to the top plate, a connecting plate rotatably connected to the support plate, the connecting plate being fixedly connected to the inlet end of the aortic vascular model, a first motor for driving the connecting plate to rotate being provided between the connecting plate and the support plate, and the inlet of the aortic vascular model being connected to the outlet end of the water pump through the connecting plate and the corrugated pipe.

[0012] Preferably, the connecting pipe includes a connecting rigid pipe that runs vertically through the top of the base, a slider is fixedly connected to the side wall of the connecting rigid pipe, a lead screw is vertically rotatably connected inside the base, the slider is threaded onto the lead screw, a second motor is driven to one end of the lead screw, a connecting ring is fixedly connected to the top of the connecting rigid pipe, a sealing ring is fixedly connected to the top of the connecting ring, and the top of the sealing ring abuts against the outlet end of the aortic blood vessel model.

[0013] Preferably, a limiting plate is fixedly connected to the top of the base, and the limiting plate abuts against the edge of the aortic blood vessel model away from the connecting plate.

[0014] Preferably, the aortic vessel model has an opening on its side wall, and a side sealing cover is detachably connected to the opening. The opening is used to facilitate the installation and removal of the cover plate.

[0015] Compared with existing technologies, this invention has the following advantages and technical effects: The main function of the water pump is to pump the liquid in the reservoir to the aortic vascular model and to allow the liquid to flow back from the aortic vascular model to the reservoir, thereby simulating the effect of blood flowing in the aortic vascular model; the main function of the opening control mechanism is to control whether the orifice is open or closed. When the opening control mechanism is in a state where the orifice cannot flow, the liquid can flow normally in the aortic vascular model; when the opening control mechanism is in a state where the orifice can flow, it can simulate the effect of blood breaking through the intima rupture. Overall, this invention, by setting up a liquid supply component, can simulate blood flow in the aortic vascular model, providing a liquid flow basis for dynamically and intuitively simulating how blood flow breaks through the intima rupture and enters the dissection lumen. At the same time, by setting an intima rupture simulation component on the side wall of the aortic vascular model, and simulating the moment when blood breaks through the intima rupture through the opening control mechanism, it realistically simulates the phenomenon of blood flow breaking through the intima rupture and entering the dissection lumen, improving learners' understanding of this dynamic disease process and enhancing teaching effectiveness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the device for demonstrating the present invention; Figure 2 This is another schematic diagram of the device for demonstrating the present invention; Figure 3 This is a cross-sectional schematic diagram of the base of the present invention; Figure 4 This is a cross-sectional schematic diagram of the aortic vessel model of the present invention; Figure 5 This is a cross-sectional schematic diagram of the cover plate of the present invention; The components are as follows: 1. Base; 2. Support rod; 3. Top plate; 4. Aortic vessel model; 5. Interstitial cavity; 6. Side sealing cover; 7. Buckle; 8. Connecting plate; 9. Corrugated pipe; 10. Connecting ring; 11. Limiting plate; 12. Connecting rigid pipe; 13. First motor; 14. Support plate; 15. Sealing ring; 16. Lead screw; 17. Slider; 18. Second motor; 19. Hose; 20. Liquid storage tank; 21. Water pump; 22. Opening; 23. Cover plate; 24. Soft pad; 25. Baffle; 26. Spring; 27. Slide groove; 28. Piston; 29. ​​Stop rod; 30. Flow channel; 31. Piston cavity. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the prior art, there is an aortic dissection model display device, including a display support and a display bracket. The display support includes a rectangular fixed base, a rectangular support hinged to the rectangular fixed base and located in a rectangular concave groove at the top of the rectangular fixed base, a disc support fixed to the top of the rectangular support, and a fixed disc fixed to the top of the disc support and connected to the rotating disc via transmission. The display bracket includes a support rod fixed to the top of the rotating disc, a circular fixing block fixed to the top of the support rod, and two connecting rods fixed to the top of the circular fixing block and supporting and abutting the aortic dissection model fixing frame. The aortic dissection model fixing frame includes an inverted V-shaped support plate located at the top of the two connecting rods and supporting and fixing to the common iliac artery on the aortic dissection model, and a horizontal L-shaped support plate located behind the inverted V-shaped support plate and screwed to the top of the inverted V-shaped support plate by fastening bolts. The L-shaped support panel, the rectangular support plate fixed on the top of the horizontal L-shaped support panel and fixed to the inner side of the aorta on the aortic dissection model, and the inverted U-shaped support panel fixed on the top of the rectangular support plate and supported against the aortic arch on the aortic dissection model.

[0021] The upper surface of the rectangular support is flush with the upper surface of the rectangular fixed base.

[0022] The rectangular support is locked to the rectangular fixed base by four symmetrically arranged latches.

[0023] The two connecting rods are rectangular panel structures that are arranged in an upward tilt from the inside out, and the two connecting rods meet in a V-shape.

[0024] An inverted L-shaped force-applying handle is fixed on the rotating disc.

[0025] Several internally threaded through holes are fixed on the inverted V-shaped support plate, rectangular support plate, and inverted U-shaped support panel. The inverted V-shaped support plate, rectangular support plate, and inverted U-shaped support panel are screwed to the aortic dissection model by screws passing through the internally threaded through holes.

[0026] The above technical solution places the common iliac artery of the aortic dissection model on top of the inverted V-shaped support plate, fixes the aorta to one side of the rectangular support plate, and places the aortic arch on top of the inverted U-shaped support panel, all secured with screws. This provides good fixation for the aortic dissection model and allows for the design of a display support stent based on the general outline of the aortic dissection model. This provides a more intuitive and holistic view of the aortic dissection model, making it convenient and effective for display. The aortic dissection model fixed to the display stent can be rotated 360° for a more intuitive and holistic view. Flipping the rectangular support to the left allows the display stent to be placed horizontally, providing a clear top-down view of the aortic dissection model.

[0027] Reference Figures 1-5 The present invention provides a device for displaying aortic dissection models, comprising: The support mechanism contains an aortic vessel model 4. The outer wall of the aortic vessel model 4 has a dissecting cavity 5. Two sets of through holes are opened from top to bottom on the side wall of the aortic vessel model 4, and both through holes are connected to the dissecting cavity 5. The liquid supply assembly includes a liquid storage tank 20 and a water pump 21. The outlet end of the water pump 21 is connected to the inlet of the aortic blood vessel model 4, and the outlet end of the water pump 21 is connected to the outlet of the aortic blood vessel model 4. The water pump 21 is used to circulate the liquid in the liquid storage tank 20 in the aortic blood vessel model 4. The intimal rupture simulation component includes a cover plate 23 detachably connected to a through hole. The cover plate 23 has a through hole, and an opening control mechanism is provided between the through hole and the cover plate 23. The opening control mechanism is used to connect the aortic blood vessel model 4 and the dissection lumen 5.

[0028] The main function of the two sets of through holes is to allow liquid to enter the dissection lumen 5 through the aortic vessel model 4, thereby realizing the dynamic simulation of aortic dissection. The main function of the water pump 21 is to pump the liquid in the reservoir 20 to the aortic vessel model 4 and to allow the liquid to flow back from the aortic vessel model 4 to the reservoir 20, thereby simulating the effect of blood flowing in the aortic vessel model 4. The main function of the opening control mechanism is to control whether the through hole is open or closed. When the opening control mechanism is in a state that prevents liquid from flowing through the through hole, the liquid can flow normally in the aortic vessel model 4. When the opening control mechanism is in a state that allows liquid to flow through the through hole, the effect of blood breaking through the intima can be simulated. Overall, this invention, by setting up a fluid supply component, can simulate blood flow in an aortic vascular model, providing a fluid flow basis for dynamically and intuitively simulating how blood flow breaks through the intimal tear and enters the dissection lumen. At the same time, by setting up an intimal tear simulation component on the side wall of the aortic vascular model and simulating the moment when blood breaks through the intimal tear through the opening control mechanism, it realistically simulates the phenomenon of blood flow breaking through the intimal tear and entering the dissection lumen, improving learners' understanding of this dynamic disease process and enhancing teaching effectiveness.

[0029] To further optimize the design, the aortic vascular model 4 was made of a transparent rigid material, while the dissecting lumen 5 was made of a transparent soft material.

[0030] In this embodiment, the use of a transparent material allows learners to visually observe the fluid flow within the aortic vessel model 4. The use of a soft material for the dissecting lumen 5 better simulates the bulging process of the dissecting lumen 5 under the impact of blood flow.

[0031] To further optimize the solution, red food coloring or similar ingredients can be added to the liquid in the storage tank 20 to make the liquid flow process clearly visible.

[0032] The scheme is further optimized. The opening control mechanism includes two sets of soft pads 24. One side of each soft pad 24 is fixedly connected to the two opposite side walls of the through hole. The close ends of the two soft pads 24 abut against each other. A baffle 25 is slidably connected to one side of the cover plate 23. The baffle 25 is used to block the through hole. A sliding drive is provided between the baffle 25 and the cover plate 23. The sliding drive is used to move the baffle 25 away from the through hole. Along the flow direction of the liquid in the aortic vessel model 4, the baffle 25 on the cover plate 23 near the upstream is located in the aortic vessel model 4, and the baffle 25 on the cover plate 23 near the downstream is located in the interstitial cavity 5.

[0033] like Figure 4 and Figure 5As shown, in this embodiment, the liquid flows through the soft pad 24 on the upper cover plate 23 of the aortic vessel model 4 into the interstitial cavity 5, and then flows back into the aortic vessel model 4 through the soft pad 24 on the lower cover plate 23. To achieve the above effect, the upper cover plate 23 and the lower cover plate 23 are installed in opposite directions, that is, the baffle 25 on the lower cover plate 23 faces the aortic vessel model 4 and the soft pad 24 is opened towards the inside of the aortic vessel model 4, while the baffle 25 on the upper cover plate 23 faces the interstitial cavity 5 and the soft pad 24 is opened towards the inside of the interstitial cavity 5, to simulate the real situation.

[0034] In a further optimized design, the sliding drive component includes a groove 27 along the side wall of the cover plate 23. The groove 27 is arranged parallel to the side wall of the cover plate 23. A baffle 25 is slidably connected in the groove 27. A spring 26 is fixedly connected between the baffle 25 and the bottom of the groove 27. The spring 26 is used to pull the baffle 25 into the groove 27. A limiting component is provided in the cover plate 23. The limiting component is used to prevent the baffle 25 from sliding into the groove 27 when the baffle 25 extends out of the groove 27.

[0035] like Figure 4 and 5 As shown, when the baffle 25 blocks the through hole, the liquid cannot break through the baffle 25, thus blocking the liquid. When it is necessary to simulate a rupture, the limiting component fails, and the spring 26 quickly pulls the baffle 25 back into the slide 27. At this time, the through hole is in the open state. Under the liquid pressure, the flowing liquid instantly breaks through the two soft pads 24, thus realizing the flow of liquid between the aortic blood vessel model 4 and the dissecting lumen 5, thereby simulating the situation of the blood vessel intima being ruptured.

[0036] The scheme is further optimized. The limiting component includes a piston cavity 31 opened in the cover plate 23. The piston cavity 31 is set perpendicularly to the slide groove 27. A piston 28 is slidably connected in the piston cavity 31. One end of the piston 28 near the baffle 25 is fixedly connected to one end of the stop rod 29. The other end of the stop rod 29 is set to correspond to the side wall of the slide groove 27 and the end of the baffle 25 near the spring 26. A flow channel 30 is opened in the cover plate 23. One end of the flow channel 30 penetrates the side wall of the cover plate 23 away from the baffle 25. The other end of the flow channel 30 is connected to the piston cavity 31 and set near the slide groove 27.

[0037] Further optimize the plan, such as Figure 5 As shown, the cover plate 23 has several through holes for bolts to pass through. The aortic vessel model 4 has threaded holes in the through holes, allowing the user to fix the cover plate 23 in the through holes with bolts, thus enabling the cover plate 23 to be installed and removed.

[0038] like Figure 4 and Figure 5As shown, before installing the cover plate 23 onto the aortic vessel model 4, the baffle 25 is pulled out, and air is drawn out through the flow channel 30 to create a negative pressure state in the piston chamber 31. This causes the piston 28 to move the stop rod 29 into the slide groove 27, blocking the baffle 25 and preventing it from being pulled back into the slide groove 27. Afterward, the two cover plates 23 are installed onto the two through holes. During the simulation, the water pump 21 is activated, causing the liquid to flow between the aortic vessel model 4 and the reservoir 20. When it is necessary to demonstrate the intima being pushed out of the bevel, the power of the water pump 21 is increased, raising the pressure in the aortic vessel model 4. The liquid enters the piston chamber 31 through the flow channel 30 on the upper cover plate 23. As the hydraulic pressure increases, the piston 28 is pushed, causing the stop lever 29 to move inward and disengage from the baffle 25. At this time, the baffle 25 is pulled back into the slide groove 27, and the liquid then breaks through the soft pad 24 and enters the interlayer cavity 5. As the interlayer cavity 5 bulges, the liquid pressure in the interlayer cavity 5 increases, and the liquid enters the piston chamber 31 of the lower cover plate 23, causing the baffle 25 on the lower cover plate 23 to retract into the slide groove 27. The liquid in the interlayer cavity 5 then breaks through the soft pad 24 and flows back into the aortic vessel model 4, thus realizing the dynamic simulation of the disease.

[0039] Further optimization of the scheme: the support mechanism includes a base 1, a number of support rods 2 are vertically fixedly connected to the top of the base 1, a top plate 3 is fixedly connected to the top of the support rods 2, a liquid storage tank 20 is set inside the base 1, a deflection drive is set between the top plate 3 and the aortic blood vessel model 4 for driving the aortic blood vessel model 4 to deflect, and a connecting pipe is set on the base 1 to communicate with the liquid outlet of the aortic blood vessel model 4.

[0040] Further optimization of the scheme: the deflection drive component includes a support plate 14 fixedly connected to the top plate 3, a connecting plate 8 rotatably connected to the support plate 14, the connecting plate 8 being fixedly connected to the inlet end of the aortic blood vessel model 4, a first motor 13 for driving the connecting plate 8 to rotate is provided between the connecting plate 8 and the support plate 14, and the inlet of the aortic blood vessel model 4 is connected to the outlet end of the water pump 21 through the connecting plate 8 and the corrugated pipe 9.

[0041] like Figure 1 and Figure 2As shown, since this disease can be treated by releasing a covered stent in the aortic vessel model, after the soft pad 24 is opened, if it is necessary to place a covered stent model into the aortic vessel model 4, the connecting pipe can be separated from the bottom of the aortic vessel model 4. Then, the first motor 13 is controlled to drive the connecting plate 8 to rotate along the horizontal axis, causing the aortic vessel model 4 to rotate along with it, so that its bottom rotates out between the two support rods 2. At this time, the operator can insert the covered stent into the appropriate position in the aortic vessel model 4 from the bottom. After that, the aortic vessel model 4 is reset, the connecting pipe is connected, and the dynamic simulation can be performed again. The corrugated pipe 9 can avoid interfering with the deflection of the aortic vessel model 4 through its own deformation.

[0042] Further optimization of the scheme: the connecting pipe includes a vertical connecting rigid pipe 12 that penetrates the top of the base 1. A slider 17 is fixedly connected to the side wall of the connecting rigid pipe 12. A lead screw 16 is vertically rotatably connected inside the base 1. The slider 17 is threaded onto the lead screw 16. A second motor 18 is driven to one end of the lead screw 16. A connecting ring 10 is fixedly connected to the top of the connecting rigid pipe 12. A sealing ring 15 is fixedly connected to the top of the connecting ring 10. The top of the sealing ring 15 abuts against the outlet end of the aortic blood vessel model 4.

[0043] like Figure 1 and Figure 3 As shown, when it is necessary to separate the connecting rigid tube 12 from the bottom of the aortic vessel model 4, the second motor 18 is controlled to drive the lead screw 16 to rotate. By pulling down the slider 17, the connecting rigid tube 12 and the connecting ring 10 descend together, thus separating the connecting ring 10 from the bottom of the aortic vessel model 4. At this time, the aortic vessel model 4 can deflect with the connecting plate 8. When it is necessary to reconnect, the second motor 18 is controlled to rotate in the opposite direction, causing the connecting rigid tube 12 to move upward, so that the sealing ring 15 at the top of the connecting ring 10 fits against the bottom of the aortic vessel model 4, achieving a sealed connection.

[0044] To further optimize the design, the water pump 21 is a submersible pump and is installed in the liquid storage tank 20. The bottom of the connecting rigid pipe 12 is connected to the liquid storage tank 20 through the flexible hose 19 to realize the return of liquid.

[0045] To further optimize the design, the inner diameter of the connecting rigid tube 12 is smaller than that of the bellows 9, so as to better generate liquid pressure in the aortic vascular model 4.

[0046] In a further optimized design, a limiting plate 11 is fixedly connected to the top of the base 1, and the limiting plate 11 abuts against the edge of the aortic blood vessel model 4 away from the connecting plate 8.

[0047] like Figure 1 and Figure 2As shown, by the contact between the limiting plate 11 and the side wall of the aortic blood vessel model 4, the deflection of the aortic blood vessel model 4 can be avoided when the connecting ring 10 is abutting upward at the bottom of the aortic blood vessel model 4.

[0048] To further optimize the design, an opening 22 is provided on the side wall of the aortic vessel model 4, and a side sealing cover 6 is detachably connected inside the opening 22. The opening 22 is used to facilitate the installation and removal of the cover plate 23.

[0049] like Figure 1 As shown, the side sealing cover 6 is detachably connected to the opening 22 by the snap 7, which allows the operator to easily disassemble and assemble the cover plate 23 when the side sealing cover 6 is removed.

[0050] The buckle 7 is a standard structure and will not be described in detail in this embodiment.

[0051] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0052] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An aortic dissection model display device, characterized in that, include: The support mechanism is provided with an aortic vessel model (4) inside the support mechanism. A dissecting cavity (5) is provided on the outer wall of the aortic vessel model (4). Two sets of through holes are opened from top to bottom on the side wall of the aortic vessel model (4). Both through holes are connected to the dissecting cavity (5). The liquid supply assembly includes a liquid storage tank (20) and a water pump (21). The outlet end of the water pump (21) is connected to the inlet of the aortic blood vessel model (4), and the outlet end of the water pump (21) is connected to the outlet of the aortic blood vessel model (4). The water pump (21) is used to circulate the liquid in the liquid storage tank (20) in the aortic blood vessel model (4). The intimal rupture simulation component includes a cover plate (23) detachably connected to the through hole. The cover plate (23) has a through hole. An opening control mechanism is provided between the through hole and the cover plate (23). The opening control mechanism is used to connect the aortic vessel model (4) and the dissection lumen (5).

2. The aortic dissection model display device according to claim 1, characterized in that: The aortic vessel model (4) is made of transparent rigid material, and the dissecting cavity (5) is made of transparent soft material.

3. The aortic dissection model display device according to claim 1, characterized in that: The opening control mechanism includes two sets of soft pads (24). One side of each soft pad (24) is fixedly connected to the two opposite sidewalls of the through hole. The two soft pads (24) abut against each other at their close ends. A baffle (25) is slidably connected to one side of the cover plate (23). The baffle (25) is used to block the through hole. A sliding drive is provided between the baffle (25) and the cover plate (23). The sliding drive is used to move the baffle (25) away from the through hole. Along the flow direction of the liquid in the aortic vessel model (4), the baffle (25) on the cover plate (23) near the upstream is located in the aortic vessel model (4), and the baffle (25) on the cover plate (23) near the downstream is located in the interstitial cavity (5).

4. The aortic dissection model display device according to claim 3, characterized in that: The sliding drive includes a groove (27) along the side wall of the cover plate (23), the groove (27) being arranged parallel to the side wall of the cover plate (23), the baffle (25) being slidably connected in the groove (27), and a spring (26) being fixedly connected between the baffle (25) and the bottom of the groove (27), the spring (26) being used to pull the baffle (25) into the groove (27), and a limiting member being provided in the cover plate (23), the limiting member being used to prevent the baffle (25) from sliding into the groove (27) when the baffle (25) extends out of the groove (27).

5. The aortic dissection model display device according to claim 4, characterized in that: The limiting component includes a piston cavity (31) opened in the cover plate (23). The piston cavity (31) is perpendicular to the slide groove (27). A piston (28) is slidably connected in the piston cavity (31). One end of the piston (28) near the baffle (25) is fixedly connected to one end of a stop rod (29). The other end of the stop rod (29) is located on the side wall of the slide groove (27) and corresponds to the end of the baffle (25) near the spring (26). A flow channel (30) is opened in the cover plate (23). One end of the flow channel (30) passes through the side wall of the cover plate (23) away from the baffle (25). The other end of the flow channel (30) communicates with the piston cavity (31) and is located near the slide groove (27).

6. The aortic dissection model display device according to claim 1, characterized in that: The support mechanism includes a base (1), a number of support rods (2) are vertically fixedly connected to the top of the base (1), a top plate (3) is fixedly connected to the top of the support rods (2), the liquid storage tank (20) is set inside the base (1), a deflection drive is provided between the top plate (3) and the aortic blood vessel model (4) for driving the aortic blood vessel model (4) to deflect, and a connecting pipe is provided on the base (1) to communicate with the liquid outlet of the aortic blood vessel model (4).

7. The aortic dissection model display device according to claim 6, characterized in that: The deflection drive includes a support plate (14) fixedly connected to the top plate (3), a connecting plate (8) rotatably connected to the support plate (14), the connecting plate (8) being fixedly connected to the inlet end of the aortic blood vessel model (4), a first motor (13) for driving the connecting plate (8) to rotate is provided between the connecting plate (8) and the support plate (14), and the inlet of the aortic blood vessel model (4) is connected to the outlet end of the water pump (21) through the connecting plate (8) and the bellows (9).

8. The aortic dissection model display device according to claim 7, characterized in that: The connecting pipe includes a connecting rigid pipe (12) that runs vertically through the top of the base (1). A slider (17) is fixedly connected to the side wall of the connecting rigid pipe (12). A lead screw (16) is vertically rotatably connected inside the base (1). The slider (17) is threaded onto the lead screw (16). A second motor (18) is connected to one end of the lead screw (16). A connecting ring (10) is fixedly connected to the top of the connecting rigid pipe (12). A sealing ring (15) is fixedly connected to the top of the connecting ring (10). The top of the sealing ring (15) abuts against the outlet end of the aortic vessel model (4).

9. The aortic dissection model display device according to claim 8, characterized in that: A limiting plate (11) is fixedly connected to the top of the base (1), and the limiting plate (11) abuts against the edge of the aortic blood vessel model (4) away from the connecting plate (8).

10. The aortic dissection model display device according to claim 1, characterized in that: An opening (22) is provided on the side wall of the aortic vessel model (4), and a side sealing cover (6) is detachably connected inside the opening (22). The opening (22) is used to facilitate the disassembly and assembly of the cover plate (23).

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