Device for simulating adjustment of crystalline lens by ciliary body

Abstract

The utility model belongs to the field of biomedical models, and provides a device for simulating adjustment of a ciliary body to a crystalline lens, which comprises a driving component for providing power drive, a ciliary body model component for simulating the function of the ciliary body and a crystalline lens model component for simulating the function of the crystalline lens, the driving assembly comprises a positioning disc arranged on the outer side of the crystalline lens model component in a sleeving mode, the ciliary body model component comprises a plurality of ciliary processes which are arranged on the outer side of the crystalline lens model component in a surrounding mode and can move in the radial direction of the positioning disc, and a plurality of small ciliary belts are arranged between the ciliary processes and the crystalline lens model component; the driving assembly, the ciliary body model component, the crystalline lens model component and the ciliary ribbons are used in cooperation, it is guaranteed that a plurality of ciliary processes can move synchronously through the synchronous structure, the working process of the ciliary body in the physiological state is highly restored, the simulation degree of the model is remarkably improved, and the simulation degree of the ciliary body model is improved. And a more real and accurate simulation effect is provided for teaching.

Description

Technical Field

[0001] This invention belongs to the field of biomedical models, specifically a device that simulates the adjustment of the ciliary body to the lens, which can be used in medical teaching to intuitively present the adjustment process of the ciliary body to the lens. Background Technology

[0002] In teaching ophthalmic physiology, the process of the ciliary body's regulation of the lens is often difficult for students to understand due to its microscopic and dynamic physiological mechanisms. Traditional teaching methods mostly rely on static diagrams, animations, and simple textual descriptions, with a few using simulation devices. However, existing simulation devices suffer from low feasibility and inaccurate control of lens shape when simulating the ciliary body's regulation of the lens. They fail to visually demonstrate the complex process by which the ciliary body, through the contraction and relaxation of the ciliary muscle, moves the ciliary processes, and subsequently changes the lens shape via the ciliary zonules to achieve clear imaging of objects at different distances. This leads to students' lack of clarity regarding this important physiological knowledge, affecting the effectiveness of teaching. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a device for simulating the adjustment of the lens by the ciliary body, thereby solving the problems of low feasibility and inaccurate control of lens shape in existing device models when simulating the adjustment of the lens by the ciliary body.

[0004] A device for simulating the adjustment of the ciliary body to the lens includes a drive assembly for providing power drive, a ciliary body model component simulating ciliary body function, and a lens model component simulating lens function.

[0005] The driving component includes a positioning disk sleeved on the outside of the lens model component for positioning and supporting other components;

[0006] The ciliary body model component includes several ciliary processes that are arranged around the outside of the lens model component and can move radially along the positioning disk. Several ciliary bands are provided between the ciliary processes and the lens model component to pull the lens model component to produce deformation.

[0007] A synchronization structure is connected between several of the ciliary processes to enable the simultaneous movement of the several ciliary processes.

[0008] Preferably, a ciliary muscle for flexible connection is provided between two adjacent ciliary processes.

[0009] Preferably, the lens model component includes a lens material capable of elastic deformation, and a lens capsule that is not easily stretched and is fixedly connected to the ciliary zonules for traction and compression deformation of the lens material is sleeved on the outside of the lens material.

[0010] Preferably, the synchronization structure includes a synchronization disk with several arc-shaped guide grooves arranged in a ring, and a number of straight guide grooves are provided on the positioning disk. A slide rod is slidably arranged in the straight guide groove. The end of the slide rod slides through the corresponding arc-shaped guide groove and is detachably connected to the ciliary process. The synchronous movement of the ciliary process is achieved by sliding the slide rod in the straight guide groove and the arc-shaped guide groove.

[0011] Preferably, a guide post is provided on the inner side of several of the ciliary processes, and the end of the guide post slides through the positioning disk and reaches the inner side of the linear guide groove to guide and stabilize the movement of the ciliary processes.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the coordinated use of a drive component, a ciliary body model component, a lens model component, and a ciliary zonules, drives the synchronous disk to rotate by a sliding rod, thereby moving the model component of the ciliary process. It highly replicates the working process of the ciliary body under physiological conditions, significantly improving the simulation degree of the model and providing a more realistic and accurate simulation effect for teaching. It can accurately simulate the adjustment process of the ciliary body on the lens, allowing students to intuitively observe the changes in the shape of the lens, making abstract physiological knowledge concrete, greatly enhancing the intuitiveness and interest of teaching, and helping students better understand and master relevant knowledge.

[0014] 2. This utility model adopts a detachable connection method between the various components of the drive assembly, ciliary body model component, lens model component, and ciliary zonules. This not only facilitates the assembly and disassembly of the model, but also allows for convenient and quick replacement when a component is damaged, reducing maintenance costs and improving the service life and practicality of the device. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the present invention in its contracted state;

[0016] Figure 2 This is a second-view three-dimensional structural diagram of the present invention in its contracted state;

[0017] Figure 3 This is a schematic diagram of the third-view three-dimensional structure of the present invention in a contracted state;

[0018] Figure 4 This is a first-view three-dimensional structural diagram of the present invention in the relaxed state;

[0019] Figure 5 This is a second-view three-dimensional structural diagram of the present invention in the relaxed state;

[0020] Figure 6This is a three-dimensional structural diagram of the ciliary process in this utility model.

[0021] In the picture:

[0022] 1. Drive assembly; 101. Positioning disc; 102. Synchronizing disc; 103. Slide rod; 2. Ciliary body model component; 201. Ciliary process; 202. Ciliary muscle; 3. Lens model component; 301. Lens material; 302. Lens capsule; 4. Ciliary zonules; 5. Arc-shaped guide groove; 6. Linear guide groove; 7. Guide post. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] This invention provides a device for simulating the adjustment of the ciliary body on the lens, consisting of a drive component 1, a ciliary body model component 2, and a lens model component 3. It can clearly demonstrate the adjustment process of the ciliary body on the lens in an intuitive and dynamic way, providing a powerful aid for students to understand ophthalmic physiology and effectively enhancing teaching results.

[0026] As attached Figure 1 To be continued Figure 6 As shown: The drive assembly 1 includes a positioning disk 101 sleeved on the outside of the lens model component 3. The positioning disk 101 has mounting holes, thereby fixing the whole assembly to the bracket for support and positioning of the entire device.

[0027] As attached Figure 1 To be continued Figure 5 As shown, the ciliary body model component 2 consists of several ciliary processes 201 surrounding the lens model component 3. These ciliary processes 201 can move flexibly along the radial direction of the positioning disc 101. Adjacent ciliary processes 201 are flexibly connected by ciliary muscles 202. The presence of ciliary muscles 202 makes the movement of ciliary processes 201 more coordinated and closer to the real physiological state. Several ciliary processes 201 are connected by a synchronization structure to achieve synchronous movement of multiple ciliary processes 201, highly replicating the actual working state of the ciliary body.

[0028] As attached Figure 3As shown: The lens model component 3 includes a lens material 301 capable of elastic deformation, and a lens capsule 302 is fitted over the lens material 301. The lens capsule 302 is fixedly connected to the ciliary zonules 4. When the ciliary zonules 4 are subjected to force, they can pull and compress the lens material 301, causing it to deform, thereby simulating the shape changes of the lens during actual physiological regulation. The lens capsule 302 can be made of a flexible material that is not easily stretched, such as transparent polyester fiber fabric, and the ciliary zonules 4 can be made of a flexible material that is not easily stretched, such as braided rope.

[0029] As attached Figure 2 and attached Figure 5 To be continued Figure 6 As shown: The synchronization structure consists of a synchronization disk 102 with several arc-shaped guide grooves 5 arranged in a circular pattern. A positioning disk 101 has several straight guide grooves 6, within which slide rods 103 are slidably mounted. The ends of the slide rods 103 slide through the corresponding arc-shaped guide grooves 5 and are detachably connected to the ciliary processes 201. This connection method ensures that the slide rods 103 can effectively drive the ciliary processes 201 to move, and also facilitates disassembly during maintenance or component replacement. When the drive assembly 1 operates, the slide rods 103 slide within the straight guide grooves 6 and the arc-shaped guide grooves 5, thereby achieving synchronous movement of the ciliary processes 201. Furthermore, guide posts 7 are provided on the inner sides of several ciliary processes 201, with the ends of the guide posts 7 sliding through the positioning disk 101 and reaching the inner side of the straight guide grooves 6. The guide column 7 plays an important guiding and stabilizing role in the movement of the ciliary process 201, ensuring that the ciliary process 201 remains stable during movement and improving the accuracy of the entire device operation.

[0030] Working principle: When simulating ciliary body contraction, the swivel head on a slider 103 in the drive assembly 1 is pushed, causing the slider 103 to move within the linear guide groove 6. Since the slider 103 passes through both the linear guide groove 6 and the arc-shaped guide groove 5, the movement of the connecting column pushes the arc-shaped guide groove 5 to shift, thereby causing the synchronization disk 102 of the arc-shaped guide groove 5 to rotate. The rotation of the synchronization disk 102 drives the slider 103 to slide within the linear guide groove 6 and the arc-shaped guide groove 5, causing multiple ciliary processes 201 to contract inward synchronously. The contraction of the ciliary processes 201 pulls the lens capsule 302 through the ciliary sac 4. Since the lens capsule 302 is connected to the elastically deformable lens material 301, the lens material 301 is compressed and thinned, simulating the adjustment process of the lens thickening when the eye looks at near objects.

[0031] When simulating the relaxation of the ciliary body, the reverse operation drive component 1 causes the synchronization disk 102 to rotate in the opposite direction, the ciliary process 201 expands outward synchronously, the ciliary zonules 4 relax, and the lens material 301 recovers and thickens under its own elastic force, simulating the adjustment process of the lens thinning when the eye looks at distant objects.

[0032] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. An apparatus for simulating ciliary accommodation of a lens, characterized by: The application relates to a power-driven simulation device for simulating the functions of ciliary body and lens, which comprises a driving assembly (1) for providing power, a ciliary body model component (2) for simulating the function of ciliary body and a lens model component (3) for simulating the function of lens. The driving assembly (1) comprises a positioning disc (101) sleeved outside the lens model component (3) and used for positioning and supporting other components. The ciliary body model component (2) comprises a plurality of ciliary processes (201) which are arranged outside the lens model component (3) in a surrounding mode and can move radially along the positioning disc (101), and a plurality of zonules (4) are arranged between the ciliary processes (201) and the lens model component (3) and used for pulling the lens model component (3) to generate deformation. A plurality of the ciliary processes (201) are connected with a synchronous structure which can realize synchronous movement of the plurality of ciliary processes (201).

2. The apparatus for simulating ciliary body accommodation to the lens of claim 1, wherein: A ciliary muscle (202) used for flexible connection is arranged between two adjacent ciliary processes (201).

3. The apparatus for simulating ciliary body accommodation to a lens of claim 1, wherein: The lens model component (3) comprises a lens substance (301) which can generate elastic deformation, and a lens capsule (302) which is not easy to stretch and is fixedly connected with the zonules (4) and used for pulling and extruding the lens substance (301) to generate deformation.

4. The device for simulating the adjustment of the lens by the ciliary body as described in claim 1, characterized in that: The synchronous structure comprises a synchronous disc (102) provided with a plurality of annularly-distributed arc-shaped guide grooves (5), the positioning disc (101) is provided with a plurality of straight guide grooves (6), a slide rod (103) is slidably arranged in the straight guide grooves (6), the slide rod (103) is slidably arranged through the corresponding arc-shaped guide grooves (5) at the tail end, and the slide rod (103) is detachably connected with the ciliary process (201), so that the synchronous movement of the ciliary process (201) is realized through the sliding of the slide rod (103) in the straight guide grooves (6) and the arc-shaped guide grooves (5).

5. The apparatus of claim 4, wherein: the lens is a lens of a human eye; the ciliary body is a ciliary body of the human eye; and the lens is a crystalline lens of the human eye. The inner side of the plurality of ciliary processes (201) is provided with a guide column (7), the tail end of the guide column (7) is slidably arranged through the positioning disc (101) and reaches the inner side of the straight guide grooves (6), and the guide column (7) is used for guiding and stabilizing the movement of the ciliary process (201).

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