Glass liquefaction demonstration model

Abstract

The invention relates to the technical field of teaching models, in particular to a vitreous liquefaction demonstration model, which comprises a simulated eyeball, the bottom end of the simulated eyeball is fixed on a desktop through a base, and a control mechanism is arranged in the base; the simulated eyeball comprises a shell, a simulated glass body is arranged in the shell in an abutting mode, and an irregular bag cavity without content is formed in an inner cavity of the simulated glass body; a hidden cavity without contents is formed between the inner cavity of the shell and the simulated glass body; the control mechanism comprises a control assembly, the control assembly is electrically connected with a gas circulation assembly and a liquid circulation assembly, the gas circulation assembly communicates with the hidden cavity and the irregular bag cavity, and the liquid circulation assembly communicates with the inner cavity of the simulation vitreous body. The demonstration model is compact in structure, easy and convenient to operate and high in expansibility, not only can dynamically simulate the vitreous body liquefaction process and complications caused by the vitreous body liquefaction process, but also can be used as a teaching tool to help a user to better master related knowledge, and is easy to popularize and use in medical institutions, medical colleges and other places.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching models, in particular to a vitreous liquefaction demonstration model. Background Art

[0002] Medical teaching models are the core carriers for medical students and medical staff to master clinical skills. Their simulation and functional diversity directly affect the teaching effect. As a discipline with extremely high requirements for anatomical accuracy and pathological processes, the development of teaching models has always been the focus of medical education technology. Existing ophthalmic models can fully present static anatomical structures such as the cornea, iris, lens, vitreous body and retina. Some advanced models have been improved in materials and mechanical structures to statically simulate posterior vitreous detachment (PVD) and the retinal tears and rhegmatogenous retinal detachment (RRD) caused by them. The mechanical relationship between the vitreous body and the retina is restored through physical movable design, providing an intuitive tool for understanding the PVD mechanism.

[0003] However, vitreous liquefaction is the core pathological process of age-related eye diseases such as floaters and PVD. It involves the progressive degradation of multiple factors coupled with collagen fiber disaggregation, hyaluronic acid diffusion, and water redistribution, and has microscopic scale and time-dependence characteristics. Current models mostly rely on fixed gels to simulate macroscopic structures, or display the final state of PVD through preset mechanical devices. They are unable to visualize microscopic mechanisms such as the progressive destruction of the collagen network and the dynamic expansion of the liquid area, making it difficult for students to understand the causal relationship between liquefaction and PVD and the dynamic changes in traction force, which restricts the depth of pathology teaching.

[0004] Therefore, the present invention discloses a vitreous liquefaction demonstration model to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a vitreous liquefaction demonstration model to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: a vitreous liquefaction demonstration model, comprising a simulated eyeball, wherein the bottom end of the simulated eyeball is fixed to a table via a base, and a control mechanism for controlling the evolution of the simulated eyeball is provided in the base;

[0007] The simulated eyeball comprises a shell, a simulated vitreous body is disposed in contact with the shell, an irregular capsule cavity without any content is disposed in the simulated vitreous body cavity; a hidden cavity without any content is formed between the shell cavity and the simulated vitreous body;

[0008] The control mechanism includes a control component, which is electrically connected to a gas circulation component and a liquid circulation component. The gas circulation component is communicated with the hidden cavity and the irregular cystic cavity respectively, and the liquid circulation component is communicated with the simulated vitreous body cavity.

[0009] Preferably, the simulated vitreous body includes an elastic transparent soft capsule arranged in the shell, the transparent soft capsule is filled with a transparent liquid, the irregular capsule cavity is suspended in the transparent liquid, and the liquid circulation component is connected to the inner cavity of the transparent soft capsule for regulating the storage amount of the transparent liquid in the transparent soft capsule.

[0010] Preferably, the liquid circulation component includes a liquid storage tank arranged in the base, in which transparent liquid is stored; a filling pipe and a return pipe are connected between the liquid storage tank and the inner cavity of the transparent soft capsule, and a liquid pump for pumping transparent liquid into the transparent soft capsule is provided on the filling pipe, and the liquid pump is electrically connected to the control component.

[0011] Preferably, a regulating valve is installed on the liquid filling pipe, and an overflow valve is installed on the liquid return pipe, and the regulating valve and the overflow valve are electrically connected to the control component respectively.

[0012] Preferably, a first flow sensor is provided on the liquid filling pipe, and a second flow sensor is provided on the liquid return pipe, and the first flow sensor and the second flow sensor are electrically connected to the control component respectively.

[0013] Preferably, the gas circulation component includes an inflation tube and an air outlet tube, the outlet of the inflation tube is respectively connected to the hidden cavity and the irregular sac cavity, and the inlet of the inflation tube is connected to the air pump arranged in the base; the air outlet tube respectively connects the hidden cavity and the irregular sac cavity with the outside world.

[0014] Preferably, the irregular sac cavity is connected to a first stop valve and a first check valve, the first stop valve is connected to the air outlet pipe, and the inlet of the first check valve is connected to the inflation pipe; the hidden cavity is connected to a second stop valve and a second check valve, the second stop valve is connected to the air outlet pipe, and the inlet of the second check valve is connected to the inflation pipe, and the first check valve and the second check valve are electrically connected to the control component respectively.

[0015] Preferably, a first pressure sensor is provided in the irregular sac cavity, and a second pressure sensor is provided in the hidden cavity, and the first pressure sensor and the second pressure sensor are electrically connected to the control component respectively.

[0016] Preferably, the control assembly includes a control module with a computing function disposed in the base, and the control module is electrically connected to a display module and an input module disposed on an outer wall of the base.

[0017] Preferably, a simulated lens is embedded in the outer wall of the shell, and the transparent soft capsule is fixedly connected to the outer wall of the simulated lens.

[0018] The present invention discloses the following technical effects:

[0019] The present invention discloses a vitreous liquefaction demonstration model, which includes a simulated eyeball, a base and a control mechanism, wherein a simulated vitreous body is provided inside a shell of the simulated eyeball, and an irregular cystic cavity with no contents is provided in the simulated vitreous body cavity for simulating a liquid cavity formed during the vitreous liquefaction process, and a hidden cavity with no contents is formed between the shell and the simulated vitreous body for further simulating vitreous liquefaction and subsequent changes; the control mechanism includes a control component, a gas circulation component and a liquid circulation component, the control component is used to control the entire demonstration process, and is linked with the gas circulation component and the liquid circulation component through electrical connection; the gas circulation component is respectively connected with the hidden cavity and the irregular cystic cavity, and is used to inject gas into these cavities to simulate the liquefaction process; and the liquid circulation component is connected with the gas circulation component and the liquid circulation component to simulate the liquefaction process. The ring component is connected to the simulated vitreous cavity and is used to adjust the amount of liquid in the vitreous cavity to cooperate with the gas circulation component to achieve the simulation of the liquefaction effect. The gas circulation component and the liquid circulation component are controlled by the control component to simulate the different stages of vitreous liquefaction and the complications caused by them, thereby realizing a dynamic simulation of the vitreous liquefaction process and helping students to understand the evolution of vitreous liquefaction and the complications caused by it more intuitively. At the same time, during the demonstration, visual and auditory feedback is provided through the control component to enable students to better understand the demonstration content. It can be used as a teaching tool for medical students and medical staff to help them better master the relevant knowledge of ophthalmic diseases, and through actual operation and observation of the demonstration process, they can deepen their understanding of vitreous liquefaction and its complications.

[0020] The demonstration model of the present invention has a compact structure, is easy to operate, and has strong scalability. It can not only dynamically simulate the process of vitreous liquefaction and the complications caused by it, but also serve as a teaching tool to help users better master relevant knowledge. It is easy to promote and use in medical institutions, medical schools and other places. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A three-dimensional schematic diagram of the vitreous liquefaction demonstration model of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the vitreous liquefaction demonstration model of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the liquid circulation component of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the gas circulation component of the present invention;

[0026] Among them, 1. simulated eyeball; 2. base; 3. control mechanism; 11. shell; 12. simulated vitreous body; 13. irregular capsule; 14. hidden cavity; 15. simulated lens; 121. transparent soft capsule; 122. transparent liquid; 21. counterweight; 22. support rod; 31. control component; 32. liquid circulation component; 33. gas circulation component; 311. control module; 312. display module; 313. input module; 321. storage Liquid tank; 322, liquid filling pipe; 323, liquid return pipe; 324, liquid pump; 325, regulating valve; 326, overflow valve; 327, first flow sensor; 328, second flow sensor; 331, air filling pipe; 332, air outlet pipe; 333, air pump; 334, first stop valve; 335, first check valve; 336, second stop valve; 337, second check valve; 338, first pressure sensor; 339, second pressure sensor. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-Figure 4 The present invention provides a vitreous liquefaction demonstration model, comprising a simulated eyeball 1, wherein the bottom end of the simulated eyeball 1 is fixed on a table through a base 2, and a control mechanism 3 for controlling the evolution of the simulated eyeball 1 is provided in the base 2;

[0030] The simulated eyeball 1 includes a shell 11, a simulated vitreous body 12 is disposed in contact with the shell 11, and an irregular cavity 13 with no contents is disposed in the simulated vitreous body 12; a hidden cavity 14 with no contents is formed between the inner cavity of the shell 11 and the simulated vitreous body 12;

[0031] The control mechanism 3 includes a control component 31, which is electrically connected to a gas circulation component 33 and a liquid circulation component 32. The gas circulation component 33 is communicated with the hidden cavity 14 and the irregular cystic cavity 13 respectively, and the liquid circulation component 32 is communicated with the inner cavity of the simulated vitreous body 12.

[0032] The present invention discloses a vitreous liquefaction demonstration model, which includes a simulated eyeball 1, a base 2 and a control mechanism 3, wherein a simulated vitreous body 12 is provided inside a shell 11 of the simulated eyeball 1, and an irregular cystic cavity 13 with no contents is provided in the inner cavity of the simulated vitreous body 12, which is used to simulate the liquid cavity formed during the liquefaction of the simulated vitreous body 12, and a hidden cavity 14 with no contents is formed between the shell 11 and the simulated vitreous body 12, which is used to further simulate the liquefaction of the simulated vitreous body 12 and its subsequent changes; the control mechanism 3 includes a control component 31, a gas circulation component 33 and a liquid circulation component 32, the control component 31 is used to control the entire demonstration process, and is linked with the gas circulation component 33 and the liquid circulation component 32 through electrical connection; the gas circulation component 33 is respectively connected to the hidden cavity 14 and the irregular cystic cavity 13, and is used to inject gas into these cavities The vitreous body is used to simulate the liquefaction process; the liquid circulation component 32 is connected to the inner cavity of the simulated vitreous body 12 and is used to adjust the amount of liquid in the vitreous body cavity to cooperate with the gas circulation component 33 to achieve the simulation of the liquefaction effect. The gas circulation component 33 and the liquid circulation component 32 are controlled by the control component 31 to simulate the different stages of vitreous liquefaction 12 and the complications caused by it, thereby realizing a dynamic simulation of the vitreous liquefaction process and assisting students to more intuitively understand the evolution of vitreous liquefaction and the complications caused by it. At the same time, during the demonstration process, visual and auditory feedback is provided by the control component 31 to help students better understand the demonstration content. It can be used as a teaching tool for medical students and medical staff to help them better master the relevant knowledge of ophthalmic diseases, and through actual operation and observation of the demonstration process, they can deepen their understanding of vitreous liquefaction and its complications. The demonstration model of the present invention has a compact structure, is easy to operate, and has strong scalability. It can not only dynamically simulate the process of vitreous liquefaction and the complications caused by it, but also serve as a teaching tool to help users better master the relevant knowledge. It is easy to promote and use in medical institutions, medical schools and other places.

[0033] In one embodiment of the present invention, the top end of the base 2 is fixedly connected to the bottom end of the shell 11 through a support rod 22 to support the simulated eyeball 1; the lines and pipelines of the control component 31, the gas circulation component 33 and the liquid circulation component 32 are arranged in the inner cavity of the support rod 22.

[0034] In one embodiment of the present invention, a counterweight 21 is embedded in the bottom end of the base 2 , which increases the weight of the base 2 and improves the stability of the base 2 .

[0035] In a further optimized solution, the simulated vitreous body 12 includes an elastic, transparent capsule 121 disposed within the housing 11. The transparent capsule 121 is filled with a transparent liquid 122, and the irregular sac cavity 13 is suspended in the transparent liquid 122. A liquid circulation assembly 32 communicates with the inner cavity of the transparent capsule 121 to regulate the storage volume of the transparent liquid 122 within the transparent capsule 121. The elastic, transparent capsule 121 filled with the transparent liquid 122 forms the simulated vitreous body 12, allowing the simulated vitreous body 12 to more realistically reflect the physical properties of an actual vitreous body. The irregular cystic cavity 13 is suspended in the transparent liquid 122, simulating the liquid cavity formed during the liquefaction of the vitreous body; the gas circulation component 33 is connected to the irregular cystic cavity 13, and is used to adjust the gas content in the irregular cystic cavity 13, and then adjust its size, simulating the performance of liquid cavities in different states in the vitreous body; the liquid circulation component 32 is connected to the inner cavity of the transparent soft capsule 121, regulating the content of the transparent liquid 122 in the transparent soft capsule 121, maintaining the pressure outside the irregular cystic cavity 13 constant, and ensuring the stability of the simulation process.

[0036] To further optimize the solution, the liquid circulation component 32 includes a liquid storage tank 321 arranged in the base 2, and the transparent liquid 122 is stored in the liquid storage tank 321; a filling pipe 322 and a return pipe 323 are connected between the liquid storage tank 321 and the inner cavity of the transparent soft capsule 121, and a liquid pump 324 is provided on the liquid filling pipe 322 for pumping the transparent liquid 122 to the transparent soft capsule 121, and the liquid pump 324 is electrically connected to the control component 31. Part of the transparent liquid 122 is stored in the liquid storage tank 321, and a closed loop is formed between it and the transparent soft capsule 121 through the filling tube 322 and the return tube 323, so as to realize the precise control of the storage amount of the transparent liquid 122 inside the simulated vitreous body 12, and the amount of liquid in the transparent soft capsule 121 can be changed to match the size change of the irregular capsule cavity 13, thereby simulating the different degrees of liquefaction of the simulated vitreous body 12; the liquid pump 324 serves as the power for the circulation of the transparent liquid 122, promoting the flow of the transparent liquid 122. The liquid pump 324 is started, stopped and adjusted under the control of the control component 31 to adjust the pressure of the transparent liquid 122 on the irregular capsule cavity 13 during the liquefaction process of the simulated vitreous body 12, so as to ensure a smooth and safe simulation process.

[0037] To further optimize the solution, a regulating valve 325 is installed on the filling tube 322, and a relief valve 326 is installed on the return tube 323. The regulating valve 325 and the relief valve 326 are each electrically connected to the control assembly 31. The openings of the regulating valve 325 and the relief valve 326 are precisely adjusted under the control of the control assembly 31. The regulating valve 325 controls the filling speed to simulate the liquefaction rate of the vitreous body 12, while the relief valve 326 prevents excessive return liquid, ensuring the stability of liquid volume regulation. This achieves further precise control of the liquid flow rate, allowing for more flexible simulation of the vitreous body 12 liquefaction process, preventing distortion of the demonstration effect caused by excessive or insufficient liquid, and further recreating the pathological characteristics of the slow accumulation of liquid during vitreous liquefaction.

[0038] To further optimize the solution, a first flow sensor 327 is provided on the filling tube 322, and a second flow sensor 328 is provided on the return tube 323. The first flow sensor 327 and the second flow sensor 328 are each electrically connected to the control assembly 31. The first flow sensor 327 provides feedback to the control assembly 31 on the flow rate of the transparent liquid 122 in the filling tube 322, while the second flow sensor 328 provides feedback to the control assembly 31 on the flow rate of the transparent liquid 122 in the return tube 323. This ensures that the operating state of the liquid circulation assembly 32 meets preset requirements, implements closed-loop control of the liquid circulation, and ensures the accuracy and repeatability of changes in the liquid volume, thereby improving the accuracy and reliability of the demonstration and enhancing the scientific nature of the teaching demonstration.

[0039] To further optimize the solution, the gas circulation component 33 includes an inflation tube 331 and an outlet tube 332. The outlet of the inflation tube 331 is connected to the hidden cavity 14 and the irregular sac cavity 13 respectively, and the inlet of the inflation tube 331 is connected to the air pump 333 arranged in the base 2; the outlet tube 332 connects the hidden cavity 14 and the irregular sac cavity 13 with the outside world respectively. The inlet of the inflation tube 331 is connected to the outlet of the air pump 333, while the outlet of the inflation tube 331 forms two independent branch tubes that communicate with the hidden cavity 14 and the irregular cystic cavity 13, respectively, for inflating the hidden cavity 14 and the irregular cystic cavity 13. The inlet of the outlet tube 332 is connected to the hidden cavity 14 and the irregular cystic cavity 13 through two independent branch tubes. The air pump 333 independently controls the inflation of the hidden cavity 14 and the irregular cystic cavity 13, thereby regulating the gas pressure within the hidden cavity 14 and the irregular cystic cavity 13 within the simulated eyeball 1. This can simulate the changes in the liquid cavity during the liquefaction of the vitreous body 12, simulate the changes in the cavity during posterior vitreous detachment and vitreous liquefaction, and enrich the demonstration content. The outlet tube 332 is used to balance the air pressure in the irregular cystic cavity 13 and the hidden cavity 14, ensuring a stable and controllable simulation process.

[0040] To further optimize the solution, the irregular sac cavity 13 is connected to a first stop valve 334 and a first check valve 335, the first stop valve 334 is connected to the air outlet pipe 332, and the inlet of the first check valve 335 is connected to the inflation pipe 331; the hidden cavity 14 is connected to a second stop valve 336 and a second check valve 337, the second stop valve 336 is connected to the air outlet pipe 332, and the inlet of the second check valve 337 is connected to the inflation pipe 331, and the first check valve 335 and the second check valve 337 are electrically connected to the control component 31 respectively. The first stop valve 334 controls the efficiency of venting the irregular sac cavity 13 to the air outlet pipe 332, and the first check valve 335 adjusts the efficiency of inflating the irregular sac cavity 13 by the inflation tube 331 under the control of the control component 31, and the second stop valve 336 is used to control the efficiency of venting the hidden cavity 14 to the air outlet pipe 332, and the second check valve 337 adjusts the efficiency of inflating the hidden cavity 14 by the inflation tube 331 under the control of the control component 31. The precise control of gas flow direction and pressure realizes independent air pressure regulation of the irregular sac cavity 13 and the hidden cavity 14, which can more flexibly simulate the changes in the liquid cavity during the liquefaction process of the vitreous body 12, and prevent distortion of the demonstration effect caused by gas backflow or leakage, and accurately simulate pathological changes in different areas of the vitreous body, such as the difference between posterior vitreous detachment and the expansion of the liquefaction area.

[0041] To further optimize the solution, a first pressure sensor 338 is installed in the irregular cystic cavity 13, and a second pressure sensor 339 is installed in the hidden cavity 14. The first pressure sensor 338 and the second pressure sensor 339 are each electrically connected to the control component 31. The first pressure sensor 338 is used to monitor the pressure of the irregular cystic cavity 13 in real time, while the second pressure sensor 339 is used to monitor the gas pressure in the hidden cavity 14 in real time. The measurement data is fed back to the control component 31, which adjusts the power and valve opening of the air pump 333, adjusting the operating status in a timely manner, ensuring that the air pressure remains stable at the preset value, meeting the air pressure requirements of different stages of vitreous liquefaction or posterior detachment, and improving the accuracy and safety of the simulation.

[0042] In a further optimized solution, the control component 31 includes a control module 311 with computing functions disposed within the base 2. The control module 311 is electrically connected to a display module 312 and an input module 313 disposed on the outer wall of the base 2. The control module 311 is the processing core of the entire device, such as a PLC with programming and computing functions. The data measured by each sensor is input into the control module 311, which outputs control instructions after calculation to control the working status of the remaining components, thereby achieving control and monitoring of the entire demonstration model. The display module 312 is mounted on the side wall of the base 2 and is electrically connected to the control module 311. It is used to intuitively display changes in simulation parameters and real-time display visual imaging results during the simulation process, realizing intelligent, interactive teaching demonstrations and enhancing user experience. The input module 313 includes several buttons electrically connected to the control module 311, which are used to input control instructions to the control module 311, adjust the computing process of the control module 311, and simulate different pathological processes.

[0043] In one embodiment of the present invention, the display module 312 includes a display and a voice broadcast system, which are electrically connected to the control module 311 respectively. The display is used to intuitively display the simulation results, and the voice broadcast system is used to voice broadcast the simulation results.

[0044] In one embodiment of the present invention, the display can be a model with a touch screen function, and the device can be controlled by the touch screen; at the same time, the display status of the simulation results can be controlled by the touch screen when displaying the simulation results, which is more flexible and convenient and improves the understanding of the key points.

[0045] A further optimization scheme features a simulated lens 15 embedded in the outer wall of the housing 11, with a transparent soft capsule 121 affixed to the outer wall of the simulated lens 15. The placement and position of the simulated lens 15 correspond to the actual anatomical structure of the eyeball, allowing the demonstration model to better simulate other structural features of the eyeball while demonstrating vitreous liquefaction, ensuring the structural integrity of the simulated eyeball 1 and enhancing the intuitiveness and educational value of the demonstration.

[0046] Simulation method:

[0047] 1. In order to demonstrate the formation of vitreous liquefaction, the control module 311 opens the air pump 333 and the first check valve 335, closes the second check valve 337, and closes the first stop valve 334. The air pump 333 is controlled to uniformly transport air into the irregular cystic cavity 13 through the inflation tube 331 to simulate the liquid cavity formed by the liquefaction of the vitreous 12. When the gas pressure sensor shows that the air pressure in the irregular cystic cavity 13 reaches the preset value A, the control module 311 closes the first check valve 335 and the air pump 333; opens the overflow valve 326 to transport a portion of the transparent liquid 122 in the vitreous cavity through the return pipe 323 to the liquid storage tank 321; when the second flow sensor 328 shows that the volume of the circulating liquid reaches the preset value B, the overflow valve 326 is closed; the control module 311 controls the display to display a picture in which the object is obscured by a black shadow, and at the same time controls the voice broadcast system to broadcast "Floaters appear due to vitreous liquefaction. It is recommended to go to the hospital for examination."

[0048] 2. In order to demonstrate posterior vitreous detachment caused by vitreous liquefaction, the control module 311 closes the first check valve 335 and opens the first stop valve 334 to discharge the gas in the irregular cystic cavity 13; the control module 311 opens the second check valve 337 and closes the second stop valve 336, and controls the air pump 333 to uniformly transport air into the hidden cavity 14 through the inflation tube 331. When the gas pressure sensor indicates that the air pressure in the irregular cystic cavity 13 reaches the preset value C, the control module 311 closes the second check valve 337 and the air pump 333; opens The overflow valve 326 transports a portion of the transparent liquid 122 in the vitreous cavity to the liquid storage tank 321 through the return pipe 323. When the second flow sensor 328 shows that the circulating liquid volume reaches the preset value D, the overflow valve 326 is closed; the control module 311 controls the display to display a picture of the object blocked by a black shadow, and at the same time switches the picture to display a picture of the object highlighted in white at fixed intervals; the control module 311 controls the voice broadcast system to broadcast "Due to the flashing sensation caused by posterior vitreous detachment, it is recommended to go to the hospital for fundus examination and treatment to prevent further vision loss."

[0049] 3. After all the demonstrations are completed, the second check valve 337 is closed by the control module 311, and the second stop valve 336 is opened to discharge the air in the hidden cavity 14 through the air outlet pipe 332; the overflow valve 326 is closed by the control module 311, and the liquid pump 324 and the regulating valve 325 are opened to transport the transparent liquid 122 in the liquid storage tank 321 into the transparent soft capsule 121 through the liquid filling pipe 322. When the first flow sensor 327 shows that the volume of the circulating transparent liquid 122 reaches the preset value E, the liquid pump 324 and the regulating valve 325 are closed; the control module 311 controls the display to display a picture of a normal object; the control module 311 controls the voice broadcast system to broadcast "Through treatment, retinal function can be restored and vision can be protected from further damage. It is also recommended to visit the hospital for regular checkups."

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A vitreous liquefaction demonstration model, characterized by: The invention comprises a simulated eyeball (1), wherein the bottom end of the simulated eyeball (1) is fixed on a desktop via a base (2), and a control mechanism (3) for controlling the evolution of the simulated eyeball (1) is provided in the base (2); The simulated eyeball (1) comprises a shell (11), a simulated vitreous body (12) is disposed in contact with the shell (11), and an irregular cystic cavity (13) without any content is disposed in the inner cavity of the simulated vitreous body (12); a hidden cavity (14) without any content is formed between the inner cavity of the shell (11) and the simulated vitreous body (12); The control mechanism (3) includes a control component (31), the control component (31) being electrically connected to a gas circulation component (33) and a liquid circulation component (32), the gas circulation component (33) being in communication with the hidden cavity (14) and the irregular cystic cavity (13), respectively, and the liquid circulation component (32) being in communication with the inner cavity of the simulated vitreous body (12).

2. The vitreous liquefaction demonstration model according to claim 1, characterized in that: The simulated vitreous body (12) includes an elastic transparent soft capsule (121) arranged in the shell (11), the transparent soft capsule (121) is filled with a transparent liquid (122), the irregular capsule cavity (13) is suspended in the transparent liquid (122), and the liquid circulation component (32) is connected to the inner cavity of the transparent soft capsule (121) for regulating the storage amount of the transparent liquid (122) in the transparent soft capsule (121).

3. The vitreous liquefaction demonstration model according to claim 2, characterized in that: The liquid circulation component (32) comprises a liquid storage tank (321) arranged in the base (2), wherein transparent liquid (122) is stored in the liquid storage tank (321); a liquid filling pipe (322) and a liquid return pipe (323) are connected between the liquid storage tank (321) and the inner cavity of the transparent soft capsule (121); a liquid pump (324) for pumping the transparent liquid (122) into the transparent soft capsule (121) is provided on the liquid filling pipe (322), and the liquid pump (324) is electrically connected to the control component (31).

4. The vitreous liquefaction demonstration model according to claim 3, characterized in that: A regulating valve (325) is installed on the liquid filling pipe (322), and an overflow valve (326) is installed on the liquid return pipe (323). The regulating valve (325) and the overflow valve (326) are electrically connected to the control component (31) respectively.

5. The vitreous liquefaction demonstration model according to claim 4, characterized in that: The liquid filling pipe (322) is provided with a first flow sensor (327), and the liquid return pipe (323) is provided with a second flow sensor (328). The first flow sensor (327) and the second flow sensor (328) are electrically connected to the control component (31) respectively.

6. The vitreous liquefaction demonstration model according to claim 1, characterized in that: The gas circulation component (33) comprises an inflation tube (331) and an air outlet tube (332); the outlet of the inflation tube (331) is respectively connected to the hidden cavity (14) and the irregular sac cavity (13); the inlet of the inflation tube (331) is connected to an air pump (333) provided in the base (2); and the air outlet tube (332) respectively connects the hidden cavity (14) and the irregular sac cavity (13) to the outside world.

7. The vitreous liquefaction demonstration model according to claim 6, characterized in that: The irregular sac cavity (13) is connected to a first stop valve (334) and a first check valve (335), the first stop valve (334) is connected to the air outlet pipe (332), and the inlet of the first check valve (335) is connected to the inflation pipe (331); the hidden cavity (14) is connected to a second stop valve (336) and a second check valve (337), the second stop valve (336) is connected to the air outlet pipe (332), and the inlet of the second check valve (337) is connected to the inflation pipe (331), and the first check valve (335) and the second check valve (337) are respectively electrically connected to the control component (31).

8. The vitreous liquefaction demonstration model according to claim 7, characterized in that: A first pressure sensor (338) is provided in the irregular sac cavity (13), and a second pressure sensor (339) is provided in the hidden cavity (14). The first pressure sensor (338) and the second pressure sensor (339) are electrically connected to the control component (31) respectively.

9. The vitreous liquefaction demonstration model according to claim 1, characterized in that: The control assembly (31) comprises a control module (311) with a computing function arranged in the base (2); the control module (311) is electrically connected to a display module (312) and an input module (313) arranged on an outer wall of the base (2).

10. The vitreous liquefaction demonstration model according to claim 2, characterized in that: A simulated lens (15) is embedded and installed on the outer wall of the shell (11), and the transparent soft capsule (121) is fixedly connected to the outer wall of the simulated lens (15).

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