Dynamic teaching model that simulates iris movements

Abstract

The present invention relates to a dynamic teaching model that can simulate the movement of the iris. The dynamic teaching model drives a spherical body to squeeze a silicone sheet so that the through hole on the silicone sheet expands, simulating the process of iris expansion and pupil dilation. The spherical body is driven away from the silicone sheet so that the through hole on the silicone sheet shrinks during the resetting process, simulating the process of iris contraction and pupil contraction. Thus, the dynamic process of iris contraction and expansion is simulated, which deepens students' understanding of iris characteristics and improves learning effects.

Description

Technical Field

[0001] The invention belongs to the technical field of medical teaching tools, and in particular relates to a dynamic teaching model capable of simulating iris movements. Background Art

[0002] The iris is the part inside the eyeball that expands or contracts depending on the intensity of light. When teaching, it is impossible to provide students with real objects to learn from, so plane graphics are usually used for teaching. However, plane graphics cannot reproduce the expansion or contraction process of the iris, resulting in poor learning effects. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a dynamic teaching model that can simulate iris movements. The model can simulate the dynamic process of iris contraction and expansion, thereby deepening students' understanding of iris characteristics and improving learning effects.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a dynamic teaching model that can simulate iris movements, including a box body, one end face of the box body is a front end face, an eye hole in the shape of an eye is provided on the front end face, an upper eyelid model, a lower eyelid model, and a facial model that match the eye hole are also provided on the front end face, a transparent cornea model that is blocked on the eye hole is provided in the box body, the cornea model is dome-shaped, the outer convex surface is opposite to the eye hole, the edge of the cornea model is fixedly connected to the inner wall of the box body, a silicone sheet parallel to the front end face is also provided inside the box body, and a through hole is provided on the silicone sheet The through hole has a diameter smaller than the height of the eye hole, and the through hole faces the center of the cornea model. The silicone sheet is fixedly connected to the inner wall of the box on all sides, and the silicone sheet is located on the rear side of the cornea model. A spherical body is arranged on the rear side of the silicone sheet, and the diameter of the spherical body is larger than the length of the eye hole. The front end of the spherical body abuts against the silicone sheet facing the through hole. A turbine screw lift is fixedly connected to the rear end surface of the box, and the screw of the turbine screw lift passes through the rear end wall of the box and is inserted into the box and fixedly connected to the rear end of the spherical body. A driving motor for driving the turbine of the turbine screw lift to rotate is also connected to the rear end surface of the box.

[0005] As a preferred solution, the silicone sheet is attached to the outer edge of the corneal model.

[0006] As a preferred solution, the sphere is a transparent sphere, and the rear end of the sphere is connected to the screw end of the turbine screw elevator through a connecting block. The rear end of the sphere is fixedly connected to the connecting block. A groove is provided on the side of the connecting block facing the sphere, and a photosensor is embedded in the groove. The photosensor is connected to a controller, and the controller is connected to a drive motor to control the action of the drive motor.

[0007] As a preferred solution, the rear hemisphere of the spherical body is provided with a black coating on the outside, and a light-transmitting hole facing the groove is opened on the black coating.

[0008] The beneficial effects of the present invention are as follows: the present invention drives the sphere to squeeze the silicone sheet to expand the through hole on the silicone sheet, simulating the process of iris expansion and pupil dilation, and drives the sphere to move away from the silicone sheet to shrink the through hole during the resetting process, simulating the process of iris contraction and pupil contraction. Thus, the dynamic process of iris contraction and expansion is simulated, which deepens students' understanding of iris characteristics and improves learning effects.

[0009] The invention has the advantages of simple structure, low manufacturing cost, convenient maintenance and lifelike effect, and is very suitable for teaching tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0011] Figure 1 is a schematic structural diagram of the teaching model of the present invention when the iris is in a contracted state;

[0012] Figure 2 is a schematic structural diagram of the teaching model of the present invention when the iris is in an expanded state;

[0013] Figure 1 and Figure 2 Middle: 1. Box body, 101. Front face, 102. Rear face, 2. Eye hole, 3. Upper eyelid model, 4. Lower eyelid model, 5. Facial model, 6. Cornea model, 7. Silicone sheet, 8. Through hole, 9. Sphere, 10. Turbine screw lift, 11. Drive motor, 12. Connecting block, 13. Groove, 14. Photosensor, 15. Controller, 16. Black coating, 17. Light-transmitting hole. DETAILED DESCRIPTION

[0014] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0015] like Figure 1 and Figure 2The dynamic teaching model that can simulate iris movement shown in the figure comprises a box body 1, one end face of the box body 1 is a front end face 101, an eye hole 2 in the shape of an eye is provided on the front end face 101, an upper eyelid model 3, a lower eyelid model 4, and a facial model 5 that match the eye hole 2 are also provided on the front end face 101, a transparent cornea model 6 that is blocked on the eye hole 2 is provided in the box body 1, the cornea model 6 is dome-shaped, the outer convex surface is opposite to the eye hole 2, the edge of the cornea model 6 is fixedly connected to the inner wall of the box body 1, and a silicone sheet 7 parallel to the front end face is also provided inside the box body 1, a through hole 8 is provided on the silicone sheet 7, and the diameter of the through hole 8 is smaller than the eye hole 2, the through hole 8 is directly opposite to the center of the corneal model 6, the silicone sheet 7 is fixedly connected to the inner wall of the box body 1 on all sides, the silicone sheet 7 is located on the rear side of the corneal model 6, a spherical body 9 is arranged on the rear side of the silicone sheet 7, the diameter of the spherical body 9 is greater than the length of the eye hole 2, the front end of the spherical body 9 is directly opposite to the through hole 8 and abuts against the silicone sheet 7, a turbine screw lift 10 is fixedly connected to the rear end surface 102 of the box body 1, the screw of the turbine screw lift 10 passes through the rear end wall of the box body 1 and is inserted into the box body 1 and is fixedly connected to the rear end of the spherical body 9, and a driving motor 11 for driving the turbine of the turbine screw lift 10 to rotate is also connected to the rear end surface 102 of the box body 1.

[0016] When the turbine screw lift 10 drives the spherical body 9 to squeeze the silicone sheet 7, the through hole 8 on the silicone sheet 7 will expand, simulating the process of iris expansion and pupil dilation. Figure 2 When the turbine screw lift 10 drives the sphere 9 away from the silicone sheet 7, the through hole 8 of the silicone sheet 7 will shrink during the resetting process, simulating the process of iris contraction and pupil shrinkage, as shown in FIG. Figure 1 Therefore, the dynamic teaching model described in this embodiment can simulate the dynamic process of iris contraction and expansion, deepen students' understanding of iris characteristics, and improve learning effects.

[0017] In this embodiment, the silicone sheet 7 is attached to the outer edge of the corneal model 6, thereby improving the authenticity of the visual effect.

[0018] The spherical body 9 is a transparent sphere, and the rear end of the spherical body 9 is connected to the screw end of the turbine screw lift 10 through a connecting block 12. The rear end of the spherical body 9 is fixedly connected to the connecting block 12. A groove 13 is provided on the side of the connecting block 12 facing the spherical body 9, and a photosensitive sensor 14 is embedded in the groove 13. The photosensitive sensor 14 is connected to a controller 15, and the controller 15 is connected to the drive motor 11 to control the action of the drive motor 11.

[0019] The photosensitive sensor 14 is connected to the controller 15, and the driving motor 11 is controlled by the controller 15. In this way, the expansion or contraction of the through hole 8 can be controlled by illuminating the eye hole 2, so as to achieve a more realistic simulation effect. When strong light is used to irradiate the eye hole 2, the photosensitive sensor 14 sends a signal to the controller 15 after sensing the light. The controller 15 controls the driving motor 11 to rotate according to the light intensity signal. The driving motor 11 drives the turbine screw elevator 10 to move, driving the sphere 9 to move toward the rear end of the box 1. The silicone sheet 7 is reset under the action of elasticity, and the through hole 8 thereon shrinks. Looking inward from the eye hole 2, the iris inside the corneal model 6 (that is, the silicone sheet 7 around the through hole 8) gradually shrinks. When the strong light is removed, the photosensitivity of the photosensor 14 decreases, and the signal sent to the controller 15 also changes accordingly. The controller 15 controls the driving motor 11 to move in the opposite direction according to the received signal. The driving motor 11 drives the spherical body 9 to move toward the silicone sheet 7 through the turbine screw lift 10, squeezing the silicone sheet 7 to expand the through hole 8. Looking inward from the eye socket 2, one can see the iris inside the corneal model 6 (i.e., the silicone sheet 7 around the through hole 8) gradually expanding.

[0020] In this embodiment, a black coating 16 may be preferably provided on the outside of the rear hemisphere of the spherical body 9, and a light-transmitting hole 17 is provided on the black coating 16 and is directly opposite to the groove 13. After the black coating is provided, when looking inward from the eye hole 2, the visual effect is closer to a real eyeball, and the simulation effect is better, and the teaching effect is also better.

[0021] The working principle of the present invention is as follows: the present invention drives the spherical body 9 to squeeze the silicone sheet 7 so that the through hole 8 on the silicone sheet 7 is enlarged, simulating the process of iris expansion and pupil dilation, and drives the spherical body 9 away from the silicone sheet 7 so that the through hole 8 on the silicone sheet 7 is reduced during the resetting process, simulating the process of iris contraction and pupil contraction. Thus, the dynamic process of iris contraction and expansion is simulated, which deepens students' understanding of iris characteristics and improves learning effects.

[0022] The present invention also realizes the function of a dynamic teaching model that can simulate iris movements and automatically respond to stress under light-sensitive conditions through photosensors, controllers and drive motors, which greatly improves the simulation effect and makes the dynamic process of iris contraction and expansion more realistic, thereby further deepening students' understanding of iris characteristics and improving learning effects.

[0023] The above embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A dynamic teaching model that can simulate iris movements, characterized in that: The invention comprises a box body (1), one end face of the box body (1) being a front end face (101), an eye hole (2) in the shape of an eye being provided on the front end face (101), an upper eyelid model (3), a lower eyelid model (4), and a facial model (5) which are matched with the eye hole (2) being also provided on the front end face (101), a transparent cornea model (6) which is sealed on the eye hole (2) being provided inside the box body (1), the cornea model (6) being dome-shaped, the outer convex surface being directly opposite to the eye hole (2), the edge of the cornea model (6) being fixedly connected to the inner wall of the box body (1), a silicone sheet (7) parallel to the front end face being provided inside the box body (1), a through hole (8) being provided on the silicone sheet (7), the diameter of the through hole (8) being smaller than the height of the eye hole (2), the through hole (8) being directly opposite to the center of the cornea model (6), the periphery of the silicone sheet (7) being fixedly connected to the inner wall of the box body (1), the silicone sheet (7) being located at the rear side of the cornea model (6) A spherical body (9) is arranged on the rear side of the silicone sheet (7), the diameter of the spherical body (9) is larger than the length of the eyelet (2), the front end of the spherical body (9) is directly opposite to the through hole (8) and abuts against the silicone sheet (7), a turbine screw lift (10) is fixedly connected to the rear end surface (102) of the box body (1), the screw of the turbine screw lift (10) passes through the rear end wall of the box body (1) and is inserted into the box body (1) and is fixedly connected to the rear end of the spherical body (9), and a driving motor (11) for driving the turbine of the turbine screw lift (10) to rotate is also connected to the rear end surface (102) of the box body (1), the spherical body (9) is driven to squeeze the silicone sheet (7) so that the through hole (8) on the silicone sheet (7) is enlarged to simulate the process of iris expansion and pupil dilation, and the spherical body (9) is driven away from the silicone sheet (7) so that the through hole (8) of the silicone sheet (7) is reduced during the resetting process to simulate the process of iris contraction and pupil reduction; The silicone sheet (7) is bonded to the outer edge of the corneal model (6); The rear hemisphere of the spherical body (9) is provided with a black coating (16) on its exterior, and the black coating (16) is provided with a light-transmitting hole (17) directly opposite to the groove (13).

2. The dynamic teaching model capable of simulating iris movements according to claim 1, characterized in that: The spherical body (9) is a transparent sphere. The rear end of the spherical body (9) is connected to the end of the screw of the turbine screw lift (10) via a connecting block (12). The rear end of the spherical body (9) is fixedly connected to the connecting block (12). A groove (13) is formed on a surface of the connecting block (12) facing the spherical body (9). A photosensitive sensor (14) is embedded in the groove (13). The photosensitive sensor (14) is connected to a controller (15). The controller (15) is connected to the drive motor (11) to control the operation of the drive motor (11).

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