CN115631676A - Glaucoma demonstration model - Google Patents
Glaucoma demonstration model Download PDFInfo
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- CN115631676A CN115631676A CN202211369470.6A CN202211369470A CN115631676A CN 115631676 A CN115631676 A CN 115631676A CN 202211369470 A CN202211369470 A CN 202211369470A CN 115631676 A CN115631676 A CN 115631676A
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- 208000010412 Glaucoma Diseases 0.000 title claims abstract description 46
- 210000001742 aqueous humor Anatomy 0.000 claims abstract description 97
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 49
- 210000002159 anterior chamber Anatomy 0.000 claims abstract description 41
- 230000004410 intraocular pressure Effects 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 210000004087 cornea Anatomy 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 210000004240 ciliary body Anatomy 0.000 claims description 18
- 230000004087 circulation Effects 0.000 claims description 17
- 210000000695 crystalline len Anatomy 0.000 claims description 16
- 210000001747 pupil Anatomy 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 21
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- 239000012530 fluid Substances 0.000 description 12
- 210000001585 trabecular meshwork Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000001886 ciliary effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 201000002862 Angle-Closure Glaucoma Diseases 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
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- 210000003484 anatomy Anatomy 0.000 description 1
- 230000004509 aqueous humor production Effects 0.000 description 1
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- 210000001328 optic nerve Anatomy 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003786 sclera Anatomy 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The invention discloses a glaucoma demonstration model, relates to the field of medical models, and provides a glaucoma demonstration model capable of vividly showing the cause and the process of glaucoma generation. The model comprises a simulated eyeball, an aqueous humor circulating device, a first air charging device, a second air charging device and an intraocular pressure display device; the simulated eyeball comprises an eyeball main body, a simulated iris and a simulated cornea, wherein the simulated iris is made of a transparent and elastic material and is internally provided with a gas cavity; the simulated cornea is made of transparent hard material, a hose, an annular gas hole and an annular aqueous humor reflux hole are arranged in the simulated cornea, the gas hole corresponds to the position of the anterior chamber angle, the aqueous humor reflux hole is positioned in front of the gas hole, and the hose is positioned in the gas hole and is communicated with the aqueous humor reflux hole and the anterior chamber; the aqueous humor circulating device is communicated with the aqueous humor inlet hole and the aqueous humor return hole; the first inflation device is communicated with the gas hole; the second inflation device is communicated with the gas cavity; the intraocular pressure display device can detect and display the pressure of the liquid in the simulated eyeball.
Description
Technical Field
The invention relates to the field of medical models, in particular to a glaucoma demonstration model.
Background
The human eyeball anatomy structure is shown in figure 6, a crystalline lens is arranged in the front, a ciliary body is arranged around the crystalline lens, an iris is arranged in the front of the crystalline lens, a pupil is arranged in the center of the iris, a cornea is arranged in the front of the iris, a space between the iris and the crystalline lens is a posterior chamber, a space in front of the cornea and the iris is an anterior chamber, an included angle between the cornea and the iris is an anterior chamber angle, the pupil is communicated with the anterior chamber and the posterior chamber, schlemm sinus is arranged at the edge of the cornea, and trabecular meshwork is arranged behind the schlemm sinus.
The aqueous ciliary body produces and plays an important role in supplying necessary nutrients to the cornea and the crystalline lens, transporting away metabolites of these tissues, maintaining normal physiological functions of the cornea and the crystalline lens, and keeping the transparency thereof, which is equivalent to blood in the systemic circulation. The aqueous humor production per minute is about 2-3. Mu.l, which corresponds to about 1/100 of the anterior chamber volume. Normally, the aqueous humor is dynamically circulated and maintains a certain intraocular pressure (10-21 mmhg), and the circulation route is as follows: ciliary body production → entry into the posterior chamber → across the pupil to the anterior chamber → again from the trabecular meshwork of the anterior chamber to schlemm's canal → then through the collector and aqueous veins → anterior ciliary veins which converge into the scleral surface → reflux to the blood circulation, with another small portion being drained from the ciliary sulcus of the angle via the uveoscleral pathway and absorbed through the superficial crypts of the iris.
There are two major factors in aqueous humor circulatory disorders: excessive production of aqueous humor and obstruction of aqueous humor reflux, resulting in increased intraocular pressure and glaucoma. The increased intraocular pressure compresses blood vessels and optic nerves behind the eyeball, and long-term blood supply insufficiency can cause permanent vision loss. Glaucoma is one of the three major blinding diseases causing blindness in humans, with a total incidence of 1% and 2% after age 45.
Mild glaucoma can be treated by medication, severe glaucoma or cases where the effect of lowering intraocular pressure by medication is not significant require surgery. The surgical treatment can be performed in the following ways: 1. peripheral iridectomy, which is performed when the iris is deformed to reduce the anterior chamber angle or even block the trabecular meshwork to affect the backflow of aqueous humor (i.e., closed-angle glaucoma), is a method in which a hole is formed in the iris through which the aqueous humor directly enters the trabecular meshwork and then enters schlemm's canal, thereby smoothing the backflow of aqueous humor and reducing intraocular pressure. 2. Laser trabecula formation adopts when the trabecular meshwork blocks up, increases or dredges the trabecular meshwork through laser to it is smooth and easy to make the aqueous humor backward flow, reduces the intraocular pressure. 3. Extra-ocular drainage, which is the perforation of the cornea and sclera, suggests a drainage channel to drain the aqueous humor from the anterior chamber. 4. Ciliary photocoagulation is a method of reducing the formation of aqueous humor by destroying part of ciliary body and blood vessels with laser.
The medical teaching model is an important tool for medical staff to learn, and the prior ophthalmologic teaching model mainly can show the anatomical structure of human eyeballs for learners to know; but do not dynamically demonstrate the aqueous circulation and the causes and processes of glaucoma production, nor the glaucoma surgery recovery process; although there is video data to display, the video data is not image enough after all, and is not good for improving the teaching quality.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a glaucoma demonstration model capable of visually showing the cause and the process of glaucoma generation is provided.
The technical scheme adopted for solving the problems is as follows: the glaucoma demonstration model comprises a simulated eyeball, an aqueous humor circulating device, a first air charging device, a second air charging device and an intraocular pressure display device;
the simulated eyeball comprises an eyeball main body, a simulated iris and a simulated cornea; the front part of the eyeball main body is provided with a simulated crystalline lens and a simulated ciliary body arranged around the simulated crystalline lens; the simulated iris is arranged in front of the simulated crystalline lens and the simulated ciliary body and is connected with the eyeball main body, the center of the simulated iris is provided with a pupil, and a posterior chamber is formed between the simulated iris and the eyeball main body; the simulated cornea is arranged in front of the simulated iris and connected with the eyeball main body, an anterior chamber is formed between the simulated cornea and the simulated iris, and the included angle between the simulated cornea and the simulated iris is an anterior chamber angle; an annular aqueous humor inlet hole is formed in the simulated ciliary body and communicated with the posterior chamber; the simulated iris is made of transparent and elastic materials and is internally provided with a gas cavity; the simulated cornea is made of a transparent hard material, a hose, an annular gas hole and an annular aqueous humor return hole are arranged in the simulated cornea, the gas hole corresponds to the position of the anterior chamber angle, the aqueous humor return hole is positioned in front of the gas hole, and the hose is positioned in the gas hole and is communicated with the aqueous humor return hole and the anterior chamber;
the aqueous humor circulating device is communicated with the aqueous humor inlet hole and the aqueous humor return hole, the aqueous humor circulating device can input liquid into the aqueous humor inlet hole and receive the liquid returned by the aqueous humor return hole, and the flow of the liquid output by the aqueous humor circulating device is adjustable; the first inflation device is communicated with the gas hole; the second inflation device is communicated with the gas cavity; the intraocular pressure display device can detect and display the pressure of the liquid in the anterior chamber or the posterior chamber.
Further, the method comprises the following steps: the glaucoma demonstration model comprises a base, and an eyeball main body is connected with the base.
Further, the method comprises the following steps: the room water circulating device comprises a room water tank, a room water pump, a water inlet pipe and a water return pipe, the room water tank is arranged on the base, the water inlet pipe is communicated with the room water inlet hole and the room water tank, the water return pipe is communicated with the room water return hole and the room water tank, and the room water pump is arranged on the water inlet pipe.
Further, the method comprises the following steps: intraocular pressure display device includes intraocular pressure sensor and display screen, and the display screen is installed on the base, and intraocular pressure sensor can detect into intraductal liquid pressure, and intraocular pressure sensor is connected with the display screen electricity.
Further, the method comprises the following steps: the first inflation device comprises a first air pump and a first air pipe, the first air pump is arranged on the base, and the first air pipe is communicated with the air hole and the first air pump.
Further, the method comprises the following steps: the second air charging device comprises a second air pump and a second air pipe, the second air pump is arranged on the base, and the second air pipe is communicated with the air cavity and the second air pump.
Further, the method comprises the following steps: the simulated eyeball comprises a front chamber and a rear chamber which are communicated with each other, the front chamber and the rear chamber are arranged on the simulated iris and correspond to the hose in position, the front chamber and the rear chamber are communicated with each other through a flexible pipe and a first valve, the flexible pipe is arranged in the gas cavity, two ends of the flexible pipe are connected with the simulated iris, the first valve is arranged on the simulated iris behind the flexible pipe, and the front chamber and the rear chamber can be communicated through the front chamber and the rear chamber.
Further, the method comprises the following steps: the aqueous humor circulation device includes an additional return pipe communicating with the anterior chamber and the aqueous humor tank, and a second valve provided on the additional return pipe.
Further, the method comprises the following steps: the simulated iris, the hose and the telescopic pipe are all made of silica gel.
The invention has the beneficial effects that: 1. the invention can vividly show the aqueous humor circulation and the cause and the process of glaucoma generation, so that the ophthalmology medical care students can vividly know the cause and the process, the impression is deepened, and the learning effect is improved. The method comprises the following specific steps:
the liquid simulation aqueous humor is added into the aqueous humor circulating device, the aqueous humor circulating device sends the liquid into the aqueous humor inlet hole, and the liquid flows through the posterior chamber, the pupil, the anterior chamber, the hose and the aqueous humor backflow hole in sequence and then flows back to the aqueous humor circulating device.
The second air charging device charges air into the air cavity to simulate the inflation and expansion of the iris into the state shown in the figure 5, so that the anterior chamber angle is reduced, even the hose is shielded, the liquid backflow is influenced, and the liquid pressure in the simulated eyeball is increased; the intraocular pressure display device detects and displays the fluid pressure, so that the condition that the anterior chamber angle is reduced due to the deformation of the iris, and the trabecular meshwork is blocked to influence the backflow of aqueous humor so as to cause glaucoma is simulated.
The first inflating device inflates air into the air hole, so that the air pressure in the air hole is higher, the air pressure compresses the hose, the inner diameter of the hose is reduced, liquid backflow is influenced, and the pressure of liquid in the simulated eyeball is increased; the intraocular pressure display device detects and displays the fluid pressure, thus simulating the condition of glaucoma caused by the fact that the trabecular meshwork is blocked to influence the return flow of the aqueous humor.
The aqueous humor circulation device is adjusted to increase the flow of liquid output by the aqueous humor circulation device, so that the situation that the aqueous humor cannot flow back in time due to the excessive aqueous humor generated by the ciliary body and the glaucoma is caused by the increase of the intraocular pressure can be simulated.
2. The invention further optimizes the design, can vividly simulate and show the conditions of glaucoma treatment by peripheral iridectomy, laser trabeculoplasty and extraocular drainage, is further convenient for students to learn, deepens the impression and improves the learning effect.
Drawings
Figure 1 is a sectional view of a glaucoma demonstration model;
FIG. 2 is an enlarged view of the anterior portion of the simulated eyeball;
figure 3 is an enlarged view of the lower portion of the model demonstrating glaucoma;
fig. 4 is an external view of a glaucoma demonstration model;
figure 5 is a diagram of a model demonstrating glaucoma demonstrating the closed angle glaucoma state;
FIG. 6 is a cross-sectional view of an eyeball with a conventional model or picture;
labeled as: the simulated eyeball 1, the eyeball main body 11, the simulated crystalline lens 111, the simulated ciliary body 112, the aqueous humor inlet hole 113, the simulated iris 12, the air cavity 121, the pupil 122, the simulated cornea 13, the air hole 131, the aqueous humor return hole 132, the hose 133, the posterior chamber 14, the anterior chamber 15, the anterior chamber angle 16, the anterior-posterior chamber communicating structure 17, the extension tube 171, the first valve 172, the base 2, the aqueous humor circulating device 3, the aqueous humor tank 31, the aqueous humor pump 32, the inlet tube 33, the return tube 34, the additional return tube 35, the second valve 36, the first air pump 4, the first air pump 41, the first air tube 42, the second air pump 5, the second air pump 51, the second air tube 52, the intraocular pressure display device 6, the intraocular pressure sensor 61, the display screen 62, and the control panel 7.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 to 4, the glaucoma demonstration model includes a simulated eyeball 1, an aqueous humor circulation device 3, a first air-packing device 4, a second air-packing device 5, and an intraocular pressure display device 6; the simulated eyeball 1 comprises an eyeball main body 11, a simulated iris 12 and a simulated cornea 13; the front part of the eyeball main body 11 is provided with a simulated crystalline lens 111 and a simulated ciliary body 112 arranged around the simulated crystalline lens 111; the simulated iris 12 is arranged in front of the simulated crystalline lens 111 and the simulated ciliary body 112 and is connected with the eyeball main body 11, the simulated iris 12 is provided with a pupil 122 in the center, and a posterior chamber 14 is formed between the simulated iris 12 and the eyeball main body 11; the simulated cornea 13 is arranged in front of the simulated iris 12 and connected with the eyeball main body 11, an anterior chamber 15 is formed between the simulated cornea 13 and the simulated iris 12, and the included angle between the simulated cornea 13 and the simulated iris 12 is an anterior chamber angle 16; simulated ciliary body 112 has an annular aqueous humor inlet port 113 therein, aqueous humor inlet port 113 communicating with posterior chamber 14; the simulated iris 12 is made of transparent and elastic materials, and a gas cavity 121 is arranged in the simulated iris 12; the simulated cornea 13 is made of transparent hard material, the simulated cornea 13 is internally provided with a hose 133, an annular gas hole 131 and an annular aqueous humor return hole 132, the gas hole 131 corresponds to the position of the anterior chamber angle 16, the aqueous humor return hole 132 is positioned in front of the gas hole 131, the hose 133 is positioned in the gas hole 131 and is communicated with the aqueous humor return hole 132 and the anterior chamber 15; the aqueous humor circulating device 3 is communicated with the aqueous humor inlet hole 113 and the aqueous humor return hole 132, the aqueous humor circulating device 3 can input liquid into the aqueous humor inlet hole 113 and receive the liquid returned by the aqueous humor return hole 132, and the flow of the liquid output by the aqueous humor circulating device 3 is adjustable; the first inflator 4 communicates with the gas hole 131; the second inflator 5 is communicated with the gas chamber 121; the intraocular pressure display device 6 can detect and display the pressure of the fluid in the anterior chamber 15 or the posterior chamber 14.
The invention can vividly show the aqueous humor circulation and the cause and the process of glaucoma generation, so that the ophthalmology medical trainees can vividly know the cause and the process, the impression can be deepened, and the learning effect can be improved.
The liquid simulated aqueous humor is added to the aqueous humor circulation device 3 and may be a light colored transparent or translucent liquid in order to allow the trainee to see the circulation of the liquid more clearly. The aqueous humor circulation device 3 feeds fluid into the aqueous humor inlet hole 113, and the fluid flows through the posterior chamber 14, the pupil 122, the anterior chamber 15, the hose 133 and the aqueous humor return hole 132 in this order and then returns to the aqueous humor circulation device 3, and the trainee can visually see the aqueous humor circulation because the simulated cornea 13 and the simulated iris 12 are transparent.
The second air charging device 5 charges air into the air cavity 121 to simulate the inflation and expansion of the iris 12 to the state shown in fig. 5, so that the anterior chamber angle 16 is reduced, and the hose 133 is shielded, thereby influencing the backflow of the liquid and increasing the pressure of the liquid in the simulated eyeball 1; the intraocular pressure display 6 detects and displays the fluid pressure, thus simulating glaucoma caused by the reduction of the anterior chamber angle due to iris deformation or the obstruction of trabecular meshwork to affect aqueous humor reflux.
The first air charging device 4 charges air into the gas hole 131 to make the air pressure in the gas hole 131 higher, and the air pressure compresses the hose 133 to make the inner diameter of the hose 133 decrease, thereby influencing the liquid backflow and making the liquid pressure in the simulated eyeball 1 increase; the intraocular pressure display device 6 detects and displays the fluid pressure, thus simulating glaucoma caused by the flow back of aqueous humor due to trabecular meshwork blockage.
The condition that the aqueous humor cannot flow back in time due to excessive aqueous humor generated by the ciliary body and the condition of glaucoma caused by increased intraocular pressure can be simulated by adjusting the flow rate of the aqueous humor output by the aqueous humor circulating device 3.
The shapes of all parts of the simulated eyeball 1 are basically manufactured in an equal-scale enlargement mode according to the structure of the human eyeball. The present invention is used for showing the cause and process of glaucoma, and according to the background art, the cause and process of glaucoma mainly relate to the front part of the eyeball, and the back part of the eyeball is not required to be shown in the present invention, so the eyeball main body 11 is mainly made of opaque plastic into a whole, and only the simulated ciliary body 112 can be made of transparent plastic. The material simulating the iris 12 may be silicone, the front wall of the gas chamber 121 may be thinner to expand and deform anteriorly upon inflation, and the back wall of the gas chamber 121 may be thicker because the simulated ciliary body 112 need not expand and deform posteriorly. The material simulating the cornea 13 may be a clear rigid plastic. The tube 133 may be relatively thick so that the trainee can see the thickness change to sense the clogging of trabecular meshwork, and as shown in fig. 1 and 2, the eyeball body 11, the simulated iris 12 and the simulated cornea 13 should have holes necessary to secure the above-mentioned communicating relation in addition to the above-mentioned arrangement.
The simulated eyeball 1 is spherical and is not easy to stably place, so the glaucoma demonstration model preferably comprises a base 2, and an eyeball main body 11 is connected with the base 2.
The concrete structure of the aqueous humor circulation device 3 is preferably as follows: the room water circulating device 3 comprises a room water tank 31, a room water pump 32, a water inlet pipe 33 and a water return pipe 34, the room water tank 31 is arranged on the base 2, the water inlet pipe 33 is communicated with a room water inlet hole 113 and the room water tank 31, the water return pipe 34 is communicated with a room water return hole 132 and the room water tank 31, and the room water pump 32 is arranged on the water inlet pipe 33.
The invention does not need the liquid to have larger pressure, only needs to be higher than the intraocular pressure of the human body, and in order to avoid the damage of the invention caused by the overlarge liquid pressure, the aqueous humor circulating device 3 can be provided with a structure for limiting the highest pressure, specifically, an overflow pipe communicated with the water inlet pipe 33 is arranged, and the overflow pipe is provided with an overflow valve with smaller opening pressure.
The specific structure of the intraocular pressure display device 6 is preferably as follows: intraocular pressure display device 6 includes intraocular pressure sensor 61 and display 62, and display 62 is installed on base 2, and intraocular pressure sensor 61 can detect the liquid pressure in inlet tube 33, and intraocular pressure sensor 61 is connected with display 62 electricity.
The first inflator 4 and the second inflator 5 may be configured as a conventional inflator, specifically: the first inflator 4 includes a first air pump 41 and a first air tube 42, the first air pump 41 is provided on the base 2, and the first air tube 42 is communicated with the air hole 131 and the first air pump 41. The second inflator 5 includes a second air pump 51 and a second air pipe 52, the second air pump 51 is disposed on the base 2, and the second air pipe 52 is communicated with the air chamber 121 and the second air pump 51. Since the volumes of the gas hole 131 and the gas chamber 121 are both small, the first inflator 4 and the second inflator 5 should be devices that perform minute inflation. As mentioned above, the air pressure provided by the first inflation device 4 should be higher to ensure the compression of the hose 133 and avoid the hose 133 from being enlarged by the liquid pressure.
The glaucoma demonstration model shows the aqueous humor circulation and the causes and processes of glaucoma generation, and in order to improve the learning effect, the design can be further optimized, so that the glaucoma demonstration model can vividly simulate and show the conditions of peripheral iridectomy and extraocular drainage for treating glaucoma. Laser trabeculoplasty is demonstrated without further modification.
As described in the background, laser trabeculoplasty is the enlargement or opening of trabecular meshes by a laser. The present invention releases the gas from the gas hole 131 and the hose 133 rebounds to simulate laser trabeculoplasty.
In order to simulate and display peripheral iridectomy, it is preferable that the simulated eyeball 1 includes an anterior-posterior chamber communicating structure 17, the anterior-posterior chamber communicating structure 17 is disposed on the simulated iris 12 and corresponds to the position of the flexible tube 133, the anterior-posterior chamber communicating structure 17 includes a telescopic tube 171 and a first valve 172, the telescopic tube 171 is disposed in the gas chamber 121 and both ends of the telescopic tube are connected to the simulated iris 12, the first valve 172 is disposed on the simulated iris 12 behind the telescopic tube 171, and the anterior-posterior chamber communicating structure 17 can communicate the anterior chamber 15 with the posterior chamber 14. The bellows 171 may be made of silicone.
When the air chamber 121 is inflated to simulate the expansion of the iris 12 to reduce the frontal angle 16, the bellows 171 is correspondingly elongated so as not to affect the expansion of the simulated iris 12. With the first valve 172 open, liquid can pass directly into the tube through the first valve 172 and bellows 171 without passing through the pupil 122, thus simulating a peripheral iridectomy.
In order to simulate the demonstration of the extraocular drainage, it is preferable that the aqueous humor circulation device 3 includes an additional return pipe 35 and a second valve 36, the additional return pipe 35 communicating with the anterior chamber 15 and the aqueous humor tank 31, and the second valve 36 being provided on the additional return pipe 34.
By opening the second valve 36, the liquid can flow back from the additional return pipe 35, simulating extraocular drainage. To facilitate the viewing of the liquid return, the return pipe 35 may be a transparent pipe.
In addition to the above structure, the present invention should also be provided with a control panel 7 conventionally, and a plurality of buttons are provided on the control panel 7 to control the electric control components of the present application. The control involved in the present invention is as follows: the switch of the water pump 32 and the output flow of the water pump 32, the switch of the first valve 172, the switch of the second valve 36, the switch of the first air pump 41 and the control of the output gas quantity, the switch of the second air pump 51 and the control of the output gas quantity, and the switch of the display 62.
Claims (9)
1. The glaucoma demonstration model is characterized in that: comprises a simulated eyeball (1), an aqueous humor circulating device (3), a first air charging device (4), a second air charging device (5) and an intraocular pressure display device (6);
the simulated eyeball (1) comprises an eyeball main body (11), a simulated iris (12) and a simulated cornea (13); the front part of the eyeball main body (11) is provided with a simulated crystalline lens (111) and a simulated ciliary body (112) arranged around the simulated crystalline lens (111); the simulated iris (12) is arranged in front of the simulated crystalline lens (111) and the simulated ciliary body (112) and is connected with the eyeball main body (11), the center of the simulated iris (12) is provided with a pupil (122), and a posterior chamber (14) is formed between the simulated iris (12) and the eyeball main body (11); the simulated cornea (13) is arranged in front of the simulated iris (12) and connected with the eyeball main body (11), an anterior chamber (15) is formed between the simulated cornea (13) and the simulated iris (12), and the included angle between the simulated cornea (13) and the simulated iris (12) is an anterior chamber angle (16); an annular aqueous humor inlet hole (113) is formed in the simulated ciliary body (112), and the aqueous humor inlet hole (113) is communicated with the posterior chamber (14); the simulated iris (12) is made of transparent and elastic materials, and a gas cavity (121) is arranged in the simulated iris (12); the simulated cornea (13) is made of transparent hard material, a hose (133), an annular gas hole (131) and an annular aqueous humor backflow hole (132) are arranged in the simulated cornea (13), the gas hole (131) corresponds to the position of the anterior chamber angle (16), the aqueous humor backflow hole (132) is positioned in front of the gas hole (131), and the hose (133) is positioned in the gas hole (131) and is communicated with the aqueous humor backflow hole (132) and the anterior chamber (15);
the aqueous humor circulating device (3) is communicated with the aqueous humor inlet hole (113) and the aqueous humor return hole (132), the aqueous humor circulating device (3) can input liquid into the aqueous humor inlet hole (113) and receive liquid returned by the aqueous humor return hole (132), and the flow of the liquid output by the aqueous humor circulating device (3) is adjustable; the first inflation device (4) is communicated with the gas hole (131); the second inflating device (5) is communicated with the gas cavity (121); the intraocular pressure display device (6) can detect and display the pressure of the liquid in the anterior chamber (15) or the posterior chamber (14).
2. The glaucoma demonstration model according to claim 1, characterized in that: comprises a base (2), and an eyeball main body (11) is connected with the base (2).
3. The glaucoma demonstration model according to claim 2, characterized in that: the room water circulating device (3) comprises a room water tank (31), a room water pump (32), a water inlet pipe (33) and a water return pipe (34), the room water tank (31) is arranged on the base (2), the water inlet pipe (33) is communicated with a room water inlet hole (113) and the room water tank (31), the water return pipe (34) is communicated with a room water return hole (132) and the room water tank (31), and the room water pump (32) is arranged on the water inlet pipe (33).
4. The glaucoma demonstration model according to claim 3, wherein: the intraocular pressure display device (6) comprises an intraocular pressure sensor (61) and a display screen (62), the display screen (62) is installed on the base (2), the intraocular pressure sensor (61) can detect the liquid pressure in the water inlet pipe (33), and the intraocular pressure sensor (61) is electrically connected with the display screen (62).
5. The glaucoma demonstration model according to claim 3, wherein: the first inflation device (4) comprises a first air pump (41) and a first air pipe (42), the first air pump (41) is arranged on the base (2), and the first air pipe (42) is communicated with the air hole (131) and the first air pump (41).
6. The glaucoma demonstration model according to claim 3, wherein: the second inflation device (5) comprises a second air pump (51) and a second air pipe (52), the second air pump (51) is arranged on the base (2), and the second air pipe (52) is communicated with the air cavity (121) and the second air pump (51).
7. The glaucoma demonstration model according to any one of claims 1 to 6 wherein: simulated eyeball (1) includes preceding rear chamber connectivity structure (17), preceding rear chamber connectivity structure (17) set up on simulated iris (12) and correspond with hose (133) position, preceding rear chamber connectivity structure (17) are including flexible pipe (171) and first valve (172), flexible pipe (171) set up in gas chamber (121) and both ends are connected with simulated iris (12), first valve (172) set up on simulated iris (12) at flexible pipe (171) rear, preceding rear chamber connectivity structure (17) can communicate anterior chamber (15) and rear chamber (14).
8. The glaucoma demonstration model according to claim 3, wherein: the aqueous humor circulation device (3) includes an additional return pipe (35) and a second valve (36), the additional return pipe (35) is communicated with the anterior chamber (15) and the aqueous humor tank (31), and the second valve (36) is provided on the additional return pipe (34).
9. The glaucoma demonstration model according to claim 7, wherein: the simulated iris (12), the flexible pipe (133) and the telescopic pipe (171) are all made of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211369470.6A CN115631676A (en) | 2022-11-03 | 2022-11-03 | Glaucoma demonstration model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211369470.6A CN115631676A (en) | 2022-11-03 | 2022-11-03 | Glaucoma demonstration model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115631676A true CN115631676A (en) | 2023-01-20 |
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ID=84909080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211369470.6A Withdrawn CN115631676A (en) | 2022-11-03 | 2022-11-03 | Glaucoma demonstration model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115631676A (en) |
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2022
- 2022-11-03 CN CN202211369470.6A patent/CN115631676A/en not_active Withdrawn
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Application publication date: 20230120 |