An intraocular pressure elevation teaching device

Abstract

The present invention discloses an intraocular pressure elevation teaching device, which includes a main cavity, a simulated vitreous body, a simulated lens, a simulated iris, a simulated ciliary body, a first injection tube, and an indicating cavity. The simulated vitreous body is arranged in the main cavity, the simulated lens and the simulated ciliary body are arranged on the front side of the simulated vitreous body, the simulated iris is arranged on the front side of the simulated lens and the simulated ciliary body and is connected to the simulated ciliary body, and a posterior chamber is formed between the simulated iris and the simulated lens. The simulated iris includes a first simulated iris, the inner side of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, and the first posterior chamber formed between the first simulated iris and the simulated lens is not communicated with other parts of the posterior chamber; the first posterior chamber is communicated with the main cavity, a first injection tube communicated with the first posterior chamber is arranged in the simulated ciliary body of the first posterior chamber, and an indicating cavity communicated with the main cavity is arranged on the simulated vitreous body. Using this intraocular pressure elevation teaching device can simulate and demonstrate the principle of intraocular pressure elevation.

Description

Technical Field

[0001] The present invention relates to the field of medical models, and particularly to a teaching device for demonstrating increased intraocular pressure. Background Art

[0002] In some scenarios, medical staff need to explain the principle of increased intraocular pressure, such as before performing eye surgery on a patient. However, since the patient is not a professional in ophthalmology and does not understand the structure and function of the eye, it is very difficult for the patient to understand when the medical staff explains the principle of increased intraocular pressure only through pictures or verbal descriptions. This may lead to communication barriers in preoperative instructions and potential postoperative disputes. For another example, during clinical learning, students have only a superficial understanding of eye anatomy. When the teaching teacher explains the teaching content only through pictures or verbal descriptions, the students fail to fully understand, resulting in poor teaching effects. Therefore, it is an urgent need in the field of ophthalmology to provide a device that can simulate and demonstrate increased intraocular pressure with better simulation and demonstration effects. Summary of the Invention

[0003] The purpose of the present invention is to provide a teaching device for demonstrating increased intraocular pressure, which can simulate and demonstrate the principle of increased intraocular pressure.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A teaching device for demonstrating increased intraocular pressure includes a main cavity, a simulated vitreous body, a simulated lens, a simulated iris, a simulated ciliary body, a first injection tube, and an indicating cavity;

[0006] The simulated vitreous body is arranged in the main cavity. The simulated lens and the simulated ciliary body are arranged on the front side of the simulated vitreous body. The simulated ciliary body is connected to the simulated lens. The simulated iris is arranged on the front side of the simulated lens and the simulated ciliary body and is connected to the simulated ciliary body. A posterior chamber is formed between the simulated iris and the simulated lens;

[0007] The simulated iris includes a first simulated iris. The inner side edge of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, and the first posterior chamber formed between the first simulated iris and the simulated lens is not communicated with other parts of the posterior chamber;

[0008] The first posterior chamber is communicated with the main cavity. The first injection tube communicated with the first posterior chamber is arranged in the simulated ciliary body of the first posterior chamber. An indicating cavity communicated with the main cavity is arranged on the simulated vitreous body, so that simulated aqueous humor can enter the first posterior chamber through the first injection tube and enter the indicating cavity through the main cavity.

[0009] Optionally, it further includes a simulated zonular ligament. The simulated ciliary body is connected to the simulated lens through the simulated zonular ligament;

[0010] The simulated zonular fibers corresponding to the first posterior chamber are permeable to the simulated aqueous humor, so that the simulated aqueous humor entering the first posterior chamber can enter the main chamber.

[0011] Optionally, the simulated iris further includes a second simulated iris. A second posterior chamber is formed between the second simulated iris and the simulated lens. A second injection tube communicating with the second posterior chamber is provided in the simulated ciliary body of the second posterior chamber, so that the simulated aqueous humor can enter the second posterior chamber through the second injection tube and enter the anterior chamber through the pupil.

[0012] Optionally, it further includes a simulated cornea disposed on the front side of the simulated iris. The anterior chamber is formed between the simulated cornea and the simulated iris. The thickness of the simulated cornea increases after absorbing the simulated aqueous humor.

[0013] Optionally, particulate matter with color is provided in the anterior chamber.

[0014] Optionally, it further includes a suction tube communicating with the anterior angle of the anterior chamber, so that the simulated aqueous humor in the anterior chamber is discharged through the suction tube.

[0015] Optionally, the simulated iris includes an upper simulated iris and a lower simulated iris. The simulated ciliary body includes an upper simulated ciliary body located above the simulated lens and a lower simulated ciliary body located below the simulated lens. The upper simulated iris is connected to the upper simulated ciliary body, and the lower simulated iris is connected to the lower simulated ciliary body. The upper simulated iris or the lower simulated iris is the first simulated iris.

[0016] Optionally, it further includes a simulated choroid. The simulated choroid is connected to the simulated ciliary body, and the main chamber is surrounded by the simulated choroid, the simulated ciliary body and the simulated lens.

[0017] Optionally, a holding handle is further provided. A cavity communicating with the main chamber is provided in the holding handle, and the cavity is provided with a discharge port.

[0018] Optionally, the sagittal plane of the intraocular pressure elevation teaching device is transparent.

[0019] As can be seen from the above technical solutions, an intraocular pressure elevation teaching device provided by the present invention includes a main cavity, a simulated vitreous body, a simulated lens, a simulated iris, a simulated ciliary body, a first injection tube, and an indication cavity. The simulated vitreous body is arranged in the main cavity. The simulated lens and the simulated ciliary body are arranged on the front side of the simulated vitreous body. The simulated ciliary body is connected to the simulated lens. The simulated iris is arranged on the front side of the simulated lens and the simulated ciliary body and is connected to the simulated ciliary body. A posterior chamber is formed between the simulated iris and the simulated lens. Among them, the simulated iris includes a first simulated iris. The inner side of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, and the first posterior chamber formed between the first simulated iris and the simulated lens is not communicated with other parts of the posterior chamber. The first posterior chamber is communicated with the main cavity. A first injection tube communicated with the first posterior chamber is arranged in the simulated ciliary body of the first posterior chamber. An indication cavity communicated with the main cavity is arranged on the simulated vitreous body. The simulated aqueous humor can be flowed into the first posterior chamber through the first injection tube. Since the inner side of the first simulated iris corresponding to the first posterior chamber is hermetically connected to the simulated lens, the simulated aqueous humor in the first posterior chamber cannot enter the anterior chamber. The simulated aqueous humor will flow into the main cavity and then into the indication cavity and be displayed through the indication cavity. In this way, the intraocular pressure elevation teaching device is used to simulate and demonstrate the principle of intraocular pressure elevation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of an intraocular pressure elevation teaching device provided by an embodiment of the present invention;

[0022] Figure 2 is Figure 1 a schematic diagram of the size of the intraocular pressure elevation teaching device shown.

[0023] The reference numerals in the accompanying drawings of the specification include:

[0024] 100 - main cavity, 101 - simulated vitreous body, 102 - simulated lens, 103 - first simulated iris, 104 - first simulated ciliary body, 105 - first simulated suspensory ligament, 106 - first posterior chamber, 107 - second simulated iris, 108 - second simulated ciliary body, 109 - second simulated suspensory ligament, 110 - simulated cornea, 111 - anterior chamber, 112 - simulated choroid, 113 - simulated sclera, 114 - indication cavity, 115 - first injection tube, 116 - second injection tube, 117 - suction tube, 118 - holding handle, 119 - sealing cap. Detailed implementation mode

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] This embodiment provides an intraocular pressure elevation teaching device, including a main cavity, a simulated vitreous body, a simulated lens, a simulated iris, a simulated ciliary body, a first injection tube, and an indicating cavity;

[0027] The simulated vitreous body is arranged in the main cavity, the simulated lens and the simulated ciliary body are arranged on the front side of the simulated vitreous body, the simulated ciliary body is connected to the simulated lens, the simulated iris is arranged on the front side of the simulated lens and the simulated ciliary body, and is connected to the simulated ciliary body. A posterior chamber is formed between the simulated iris and the simulated lens;

[0028] The simulated iris includes a first simulated iris. The inner side of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, and the first posterior chamber formed between the first simulated iris and the simulated lens is not communicated with other parts of the posterior chamber;

[0029] The first posterior chamber is communicated with the main cavity. The first injection tube communicated with the first posterior chamber is arranged in the simulated ciliary body of the first posterior chamber, and an indicating cavity communicated with the main cavity is arranged on the simulated vitreous body, so that the simulated aqueous humor can enter the first posterior chamber through the first injection tube and enter the indicating cavity through the main cavity.

[0030] That the first posterior chamber is not communicated with other parts of the posterior chamber means that the simulated aqueous humor in the first posterior chamber cannot flow into other parts of the posterior chamber. That the first posterior chamber is communicated with the main cavity means that the simulated aqueous humor in the first posterior chamber can flow into the main cavity.

[0031] The simulated aqueous humor can be made to flow into the first posterior chamber through the first injection tube, thus simulating the generation of aqueous humor in the eyeball. A first posterior chamber is formed between the first simulated iris and the simulated lens, and the inner side of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, so that the simulated aqueous humor in the first posterior chamber cannot be excreted into the anterior chamber through the pupil, thus simulating that there is a problem in the circulation process of aqueous humor in the eyeball. The simulated aqueous humor in the first posterior chamber cannot flow into the anterior chamber, and the simulated aqueous humor will flow into the main cavity and then into the indicating cavity and be displayed through the indicating cavity. Thus, the principle of intraocular pressure elevation is simulated and demonstrated by this intraocular pressure elevation teaching device.

[0032] Specifically, the inner side of the first simulated iris for forming the pupil is hermetically connected to the anterior surface of the simulated lens. In this embodiment, the hermetic connection method between the first simulated iris and the simulated lens is not limited, and it can be that the first simulated iris fits and adheres to the anterior surface of the simulated lens. The size of the first simulated iris is not limited.

[0033] In some embodiments, the intraocular pressure elevation teaching device further includes simulated zonular fibers, and the simulated ciliary body is connected to the simulated lens through the simulated zonular fibers; the simulated zonular fibers corresponding to the first posterior chamber are permeable to simulated aqueous humor, so that the simulated aqueous humor entering the first posterior chamber can enter the main cavity. The simulated zonular fibers of the first posterior chamber can be made of a filtering material so that the simulated zonular fibers are permeable to simulated aqueous humor.

[0034] The indicating cavity can be a cavity recessed in the simulated vitreous body, so that the simulated aqueous humor entering the main cavity can flow into the indicating cavity. In this embodiment, the shape of the indicating cavity is not limited as long as the display effect can be achieved. The indicating cavity can be but is not limited to a three-dimensional arrow shape. Exemplarily, reference can be made to Figure 1 , Figure 1 As shown in the figure, a schematic diagram of an intraocular pressure elevation teaching device provided in this embodiment. As shown, the simulated vitreous body 101 is disposed in the main cavity 100, and the simulated lens 102 is disposed on the front side of the simulated vitreous body 101. The simulated iris includes a first simulated iris 103, and the inner side of the first simulated iris 103 for forming the pupil is hermetically connected to the simulated lens 102, and a first posterior chamber 106 is formed between the first simulated iris 103 and the simulated lens 102.

[0035] The simulated ciliary body includes a first simulated ciliary body 104, the simulated zonular fibers include a first simulated zonular fiber 105, the first simulated zonular fiber 105 is the simulated zonular fiber of the first posterior chamber 106, the first simulated iris 103 and the first simulated ciliary body 104 are connected, and the first simulated ciliary body 104 is connected to the simulated lens 102 through the first simulated zonular fiber 105. The first simulated zonular fiber 105 is permeable to simulated aqueous humor, so that the simulated aqueous humor filled in the first posterior chamber 106 will flow into the main cavity 100 through the first simulated zonular fiber 105.

[0036] As shown in the figure, the indicating cavity 114 is disposed on the simulated vitreous body 101 and communicates with the main cavity 100. There are three indicating cavities 114, and the indicating cavity 114 is in the shape of a three-dimensional arrow. The pressure effect of the accumulated aqueous humor on the vitreous body is demonstrated through the arrow-shaped indicating cavity 114 to interpret the increase in intraocular pressure.

[0037] In some embodiments, the simulated iris further includes a second simulated iris, and a second posterior chamber is formed between the second simulated iris and the simulated lens. A second injection tube communicating with the second posterior chamber is disposed in the simulated ciliary body of the second posterior chamber, so that the simulated aqueous humor can enter the second posterior chamber through the second injection tube and enter the anterior chamber through the pupil. The simulated aqueous humor can be flowed into the second posterior chamber through the second injection tube to simulate the generation of aqueous humor in the eyeball. The second posterior chamber communicates with the anterior chamber through the pupil, and the simulated aqueous humor in the second posterior chamber can flow into the anterior chamber through the pupil for excretion, thus simulating the circulation process of aqueous humor in the eyeball.

[0038] The simulated ciliary body may further include a second simulated ciliary body, which is the simulated ciliary body of the second posterior chamber, and the second simulated iris is connected to the second simulated ciliary body. The simulated zonular ligament may further include a second simulated zonular ligament, and the second simulated ciliary body is connected to the simulated lens through the second simulated zonular ligament. The second simulated zonular ligament is impermeable to the simulated aqueous humor, so as to ensure that the simulated aqueous humor flowing into the main chamber cannot flow into the second posterior chamber and the simulated aqueous humor injected into the second posterior chamber will not flow into the main chamber 100.

[0039] Further, the intraocular pressure elevation teaching device further includes a simulated cornea disposed on the front side of the simulated iris, and the anterior chamber is formed between the simulated cornea and the simulated iris, so as to more completely simulate the human eye globe. Exemplarily, reference may be made to Figure 1 As shown, the simulated cornea 110 is disposed on the front side of the simulated iris, and the anterior chamber 111 is formed between the simulated cornea 110 and the simulated iris. Preferably, the thickness of the simulated cornea 110 increases after absorbing the simulated aqueous humor. The simulated aqueous humor in the second posterior chamber can flow into the anterior chamber 111 through the pupil, and the thickness of the simulated cornea 110 increases after absorbing the simulated aqueous humor, so as to be able to simulate and demonstrate the effect of corneal edema that may occur when the intraocular pressure rises. In this embodiment, the specific material of the simulated cornea 110 is not limited, and it may be, but is not limited to, that absorbent cotton is provided on the inner side of the simulated cornea 110, and the absorbent cotton thickens after absorbing the simulated aqueous humor.

[0040] Further preferably, colored particulate matters are disposed in the anterior chamber 111. These particulate matters are used to simulate red blood cells, inflammatory cells, etc. When the particulate matters precipitate in the anterior chamber angle, it can be simulated and demonstrated that the intraocular pressure rises due to the obstruction of aqueous humor drainage. Reference may be made to Figure 2 , Figure 2 For Figure 1 the size schematic diagram of the intraocular pressure elevation teaching device shown, as shown, there are particulate matters in the anterior chamber angle of the anterior chamber 111, and these particulate matters simulate red blood cells, inflammatory cells, etc. The particulate matters may be colored granular sequins, for example, red granular sequins can be used to simulate red blood cells, and yellow granular sequins can be used to simulate inflammatory cells.

[0041] Further, the intraocular pressure elevation device may further include a suction tube communicating with the anterior angle of the anterior chamber 111, so that the simulated aqueous humor in the anterior chamber 111 is discharged through the suction tube, thus simulating the circulation process of the aqueous humor in the eyeball; and the suction tube can be closed. When the suction tube is closed, it can simulate and demonstrate the abnormal function of the trabecular meshwork and the failure of aqueous humor drainage, resulting in increased intraocular pressure.

[0042] In some embodiments, the simulated iris includes an upper simulated iris and a lower simulated iris. The simulated ciliary body includes an upper simulated ciliary body located above the simulated lens 102 and a lower simulated ciliary body located below the simulated lens 102. The upper simulated iris is connected to the upper simulated ciliary body, and the lower simulated iris is connected to the lower simulated ciliary body. The upper simulated iris or the lower simulated iris is the first simulated iris.

[0043] Exemplarily, reference can be made to Figure 1 As shown, the upper simulated iris is the first simulated iris 103, the upper simulated ciliary body is the first simulated ciliary body 104, the lower simulated iris is the second simulated iris 107, and the lower simulated ciliary body is the second simulated ciliary body 108. The second simulated iris 107 is connected to the second simulated ciliary body 108. The second simulated ciliary body 108 is connected to the simulated lens 102 through the second simulated zonular ligament 109. The second simulated zonular ligament 109 is impermeable to the simulated aqueous humor, so that the simulated aqueous humor flowing into the main chamber 100 cannot flow into the second posterior chamber, and the simulated aqueous humor filled in the second posterior chamber will not flow into the main chamber 100. A second injection tube 116 communicating with the second posterior chamber is provided in the second simulated ciliary body 108, and the device is further provided with a suction tube 117 communicating with the anterior angle of the anterior chamber 111.

[0044] Further, the intraocular pressure elevation teaching device may further include a simulated choroid, which is connected to the simulated ciliary body. The main chamber is formed by the simulated choroid, the simulated ciliary body, and the simulated lens. It may further include a simulated sclera, and the simulated sclera is arranged outside the simulated ciliary body and the simulated choroid. Reference can be made to Figure 1 As shown, the simulated choroid 112 is connected to the simulated ciliary body. The main chamber 100 is formed by the simulated choroid 112, the simulated ciliary body, and the simulated lens 102. The simulated sclera 113 covers the outside of the simulated ciliary body and the simulated choroid 112.

[0045] Optionally, the intraocular pressure elevation teaching device may further be provided with a holding handle. A cavity communicating with the main chamber 100 is provided in the holding handle, and the cavity is provided with a discharge port. Reference can be made to Figure 1As shown in the figure, the holding handle 118 is connected to the rear end of the main chamber 100, and the simulated aqueous humor filled into the main chamber 100 can be discharged through the cavity in the holding handle 118. A sealing cap 119 is provided at the discharge port of the cavity of the holding handle 118. Preferably, a sealing cap is provided at the outer port of the first injection tube 115, a sealing cap is provided at the outer port of the second injection tube 116, and a sealing cap is provided at the outer port of the suction tube 117. The sealing cap can adopt a screw thread, and connecting the syringe nipple can realize the functions of water injection or water suction.

[0046] The sagittal plane of this intraocular pressure elevation teaching device is transparent, facilitating the observation of the situation inside the simulated eyeball. The simulated iris, simulated ciliary body or simulated choroid 112 can adopt latex material. The first injection tube 115, the second injection tube 116 or the suction tube 117 can adopt PVC material, and the sealing cap can be made of rubber material. The simulated iris, simulated ciliary body and simulated choroid 112 can be wine red, the simulated lens 102 can be white; red and yellow granular sequins are placed in the anterior chamber 111; other components are colorless and transparent. The peripheral structure of the whole device can adopt transparent material, including but not limited to glass. The simulated aqueous humor can adopt red dye liquid. Reference Figure 2 As shown in the figure, in a specific example, the maximum vertical dimension d1 of the sagittal plane of this intraocular pressure elevation teaching device is 15 cm, the maximum horizontal dimension d3 of the sagittal plane is 20 cm, the maximum vertical dimension d2 of the simulated cornea 110 on the sagittal plane is 10 cm, the thickness d4 of this intraocular pressure elevation teaching device is 3 cm, and the length d5 of the holding handle 118 is 10 cm.

[0047] This intraocular pressure elevation teaching device can be used to simulate and demonstrate glaucoma or intraocular pressure elevation, with strong simulation, enabling on-site practical operation, strong intuitiveness, good visual communication effect, easy to understand, greatly improving the teaching effect, and being convenient to carry and simple to use.

[0048] The above has introduced in detail an intraocular pressure elevation teaching device provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An intraocular pressure elevation teaching device, characterized in that, It includes a main cavity, a simulated vitreous body, a simulated lens, a simulated iris, a simulated ciliary body, a first injection tube, and an indicating cavity; The simulated vitreous body is disposed in the main cavity. The simulated lens and the simulated ciliary body are disposed on the front side of the simulated vitreous body. The simulated ciliary body is connected to the simulated lens. The simulated iris is disposed on the front side of the simulated lens and the simulated ciliary body and is connected to the simulated ciliary body. A posterior chamber is formed between the simulated iris and the simulated lens; The simulated iris includes a first simulated iris. The inner side of the first simulated iris for forming the pupil is hermetically connected to the simulated lens, and the first posterior chamber formed between the first simulated iris and the simulated lens is not communicated with other parts of the posterior chamber; The first posterior chamber is communicated with the main cavity. The first injection tube communicated with the first posterior chamber is disposed in the simulated ciliary body of the first posterior chamber. An indicating cavity communicated with the main cavity is disposed on the simulated vitreous body, so that the simulated aqueous humor can enter the first posterior chamber through the first injection tube and enter the indicating cavity through the main cavity. The indicating cavity is in a three-dimensional arrow shape, and the pressure effect of the accumulated aqueous humor on the vitreous body is demonstrated through the arrow-shaped indicating cavity. It further includes a simulated zonular ligament. The simulated ciliary body is connected to the simulated lens through the simulated zonular ligament. The simulated zonular ligament corresponding to the first posterior chamber is permeable to the simulated aqueous humor, so that the simulated aqueous humor entering the first posterior chamber can enter the main cavity.

2. The intraocular pressure elevation teaching device according to claim 1, characterized in that, The simulated iris further includes a second simulated iris. A second posterior chamber is formed between the second simulated iris and the simulated lens. A second injection tube communicated with the second posterior chamber is disposed in the simulated ciliary body of the second posterior chamber, so that the simulated aqueous humor can enter the second posterior chamber through the second injection tube and enter the anterior chamber through the pupil.

3. The intraocular pressure elevation teaching device according to claim 2, characterized in that, It further includes a simulated cornea disposed on the front side of the simulated iris. The anterior chamber is formed between the simulated cornea and the simulated iris. The thickness of the simulated cornea increases after absorbing the simulated aqueous humor.

4. The intraocular pressure elevation teaching device according to claim 2, characterized in that, Particles with colors are disposed in the anterior chamber.

5. The intraocular pressure elevation teaching device according to claim 2, characterized in that, It further includes a suction tube communicated with the anterior angle of the front of the anterior chamber, so that the simulated aqueous humor in the anterior chamber is discharged through the suction tube.

6. The intraocular pressure elevation teaching device according to any one of claims 1 to 5, characterized in that The simulated iris includes an upper simulated iris and a lower simulated iris. The simulated ciliary body includes an upper simulated ciliary body located on the upper side of the simulated lens and a lower simulated ciliary body located on the lower side of the simulated lens. The upper simulated iris is connected to the upper simulated ciliary body, and the lower simulated iris is connected to the lower simulated ciliary body. The upper simulated iris or the lower simulated iris is the first simulated iris.

7. The intraocular pressure elevation teaching device according to any one of claims 1 to 5, characterized in that It further includes a simulated choroid. The simulated choroid is connected to the simulated ciliary body. The main cavity is surrounded by the simulated choroid, the simulated ciliary body, and the simulated lens.

8. The intraocular pressure elevation teaching device according to any one of claims 1 to 5, characterized in that A holding handle is further provided. A cavity communicated with the main cavity is disposed in the holding handle, and the cavity is provided with a discharge port.

9. The intraocular pressure elevation teaching device according to claim 1, characterized in that, The sagittal plane of the intraocular pressure elevation teaching device is transparent.

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