A simulated eyeball for practicing ophthalmic surgery.

Abstract

This utility model discloses a simulated eyeball for ophthalmic surgical demonstrations, comprising a spherical shell formed by splicing two hemispherical shells. The spherical shell includes a scleral simulated shell, an uveal simulated shell, and a retinal simulated shell. At designated locations inside the front end of the spherical shell are simulated structures for the iris, ciliary processes, lens, and suspensory ligaments. The circular hole in the center of the iris simulated structure serves as a simulated pupil. Through its unique three-layer shell design, from the outer scleral simulated shell to the inner uveal and retinal simulated shells, the simulated eyeball accurately reproduces the complex hierarchical structure of the human eye. In particular, the simulated structures within the eyeball, such as the iris, ciliary processes, lens, suspensory ligaments, and pupil, allow trainees to intuitively familiarize themselves with the key internal structures of the eyeball during demonstrations, providing accurate references for surgical procedures and significantly improving the demonstration effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a simulated eyeball for ophthalmic surgery practice. Background Technology

[0002] Current ophthalmic surgery training primarily relies on virtual simulation systems, lacking realistic tactile experience, or uses animal eyes. However, the structure of an excised animal eye has changed, and while virtual simulation systems can simulate the surgical procedure, they cannot realistically reproduce the feel and structural details of the eye, affecting the intuitiveness and realism of surgical demonstrations. Furthermore, excised animal eyes have opacities in the refractive media and altered intraocular structures, differing from human eyes in structure and material, and therefore cannot completely replace human eyes for surgical practice.

[0003] Therefore, there is a need for an eyeball model that can realistically simulate the feel and structure of the human eye to improve the realism and intuitiveness of surgical practice. Utility Model Content

[0004] The purpose of this invention is to provide a simulated eyeball for ophthalmic surgery training and practice, in order to solve the aforementioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A simulated eyeball for ophthalmic surgery practice is characterized by comprising a spherical shell formed by splicing two hemispherical shells. The spherical shell includes a scleral simulated shell, an uveal simulated shell, and a retinal simulated shell. The uveal simulated shell is disposed on the inner side of the scleral simulated shell, and the retinal simulated shell is disposed on the inner side of the uveal simulated shell. An iris simulated structure, a ciliary process simulated structure, a lens simulated structure, and a suspensory ligament simulated structure are disposed at a designated position inside the front end of the spherical shell. The circular hole in the middle of the iris simulated structure serves as a simulated pupil. The iris simulated structure connects to the ciliary process simulated structure. The lens simulated structure is disposed on the posterior side of the iris simulated structure. The suspensory ligament simulated structure connects the lens simulated structure and the ciliary process simulated structure. Three spherical wall operation holes are provided at a predetermined position at the front end of the spherical shell.

[0007] Preferably, the spherical shell, the iris simulation structure, the ciliary process simulation structure, the lens simulation structure, and the suspensory ligament simulation structure are all made of silicone.

[0008] Preferably, the front end of the spherical shell is provided with a corneal simulation structure.

[0009] Preferably, the rear end of the spherical shell is provided with a retinal simulation shell, an optic disc simulation structure, a blood vessel simulation structure, and a macular simulation structure.

[0010] Preferably, the left and right sides of the spherical shell are provided with medial rectus muscle simulation structures and lateral rectus muscle simulation structures.

[0011] As a further preferred embodiment, the upper and lower sides of the spherical shell are provided with superior rectus muscle simulation structures and inferior rectus muscle simulation structures.

[0012] As a further preferred embodiment, the upper and lower sides of the spherical shell are also provided with an upper oblique muscle simulation structure and a lower oblique muscle simulation structure.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] (1) In this invention, the simulated eyeball uses a unique three-layer shell design, from the outer sclera simulated shell to the inner uvea simulated shell and retina simulated shell, to accurately reproduce the complex layered structure of the human eye. In particular, the simulated structures inside the eyeball, such as the iris, ciliary process, lens, suspensory ligaments, and pupil, allow trainees to intuitively familiarize themselves with the key internal structures of the eyeball during practice, providing accurate references for surgical operations and significantly improving the training effect.

[0015] (2) In this utility model, the size of the simulated eyeball can simulate the size of the human eyeball. The simulated eyeball is made of silicone material, which fully utilizes the good flexibility, elasticity and biocompatibility of silicone. The sclera simulates the toughness of the sclera, and the inner uvea simulates the shell and the retina simulates the softness of the intraocular tissues. When trainees touch and press the simulated eyeball, they can get a tactile experience close to that of a real human eye. This effectively makes up for the lack of real tactile experience in the virtual simulation system and the fact that the material of the animal eyeball does not match that of the human eye. This allows trainees to operate more accurately in actual surgery based on the tactile experience accumulated on the simulated eyeball. Attached Figure Description

[0016] Figure 1 This is a rear view of the simulated eyeball used for ophthalmic surgery practice in this utility model;

[0017] Figure 2 This is a three-dimensional view of a simulated eyeball used for ophthalmic surgery practice in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the simulated eyeball in this utility model;

[0019] Figure 4 A schematic diagram of the simulated eyeball used for ophthalmic surgery practice in this invention, showing its interaction with the support rod and base.

[0020] In the diagram: 1. Hemispherical shell; 2. Sclera simulation shell; 3. Uvea simulation shell; 4. Retinal simulation shell; 5. Iris simulation structure; 6. Ciliary process simulation structure; 7. Lens simulation structure; 8. Suspension ligament simulation structure; 9. Simulated pupil; 10. Spherical operating port; 11. Corneal simulation structure; 12. Blood vessel simulation structure; 13. Medial rectus muscle simulation structure; 14. Lateral rectus muscle simulation structure; 15. Superior rectus muscle simulation structure; 16. Inferior rectus muscle simulation structure; 17. Superior oblique muscle simulation structure; 18. Inferior oblique muscle simulation structure; 19. Surgical operating area; 20. Support rod; 21. Base. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Figure 1 This is a rear view of the simulated eyeball used for ophthalmic surgery practice in this utility model; Figure 2 This is a three-dimensional view of a simulated eyeball used for ophthalmic surgery practice in this utility model; Figure 3 This is a schematic diagram of the internal structure of the simulated eyeball in this utility model; Figure 4 A schematic diagram illustrating the interaction between the simulated eyeball, support rod, and base used for ophthalmic surgery practice in this invention. Please refer to [link / reference]. Figures 1 to 4 The image shows a preferred embodiment of a simulated eyeball for ophthalmic surgery practice, comprising a spherical shell formed by splicing two hemispherical shells 1. The spherical shell includes a scleral simulated shell 2, an uveal simulated shell 3, and a retinal simulated shell 4. The uveal simulated shell 3 is disposed inside the scleral simulated shell 2, and the retinal simulated shell 4 is disposed inside the uveal simulated shell 3. An iris simulated structure 5, a ciliary process simulated structure 6, a lens simulated structure 7, and a suspensory ligament simulated structure 8 are disposed at a designated position inside the front end of the spherical shell. The circular hole in the middle of the iris simulated structure 5 is a simulated pupil 9. The iris simulated structure 5 is connected to the ciliary process simulated structure 6. The lens simulated structure 7 is disposed on the posterior side of the iris simulated structure 5. The suspensory ligament simulated structure 8 connects the lens simulated structure 7 and the ciliary process simulated structure 6. Three spherical wall operation holes 10 are disposed at a predetermined position at the front end of the spherical shell. In this embodiment, the spherical shell is formed by splicing two hemispherical shells 1. This splicing method not only facilitates manufacturing and assembly but also better simulates the spherical appearance of the human eye. Specifically, the splicing method can adopt a snap-fit ​​form. For example, snap-fits or slots are provided on the side where the two hemispherical shells 1 are close to each other. By engaging the snap-fits and slots, the splicing between the two hemispherical shells 1 can be achieved.

[0025] In this embodiment, the spherical shell can be disassembled to observe its internal structure. The spherical shell is used to simulate the structure of the human eyeball wall, while the sclera simulation shell 2 is used to simulate the sclera of the eye, the uvea simulation shell 3 is used to simulate the uvea of ​​the eyeball, and the retina simulation shell 4 is used to simulate the retina of the eyeball.

[0026] The rear end of the spherical shell houses a retinal simulation shell, an optic disc simulation structure, a vascular simulation structure, and a macular simulation structure. The vascular simulation structure 12, macular simulation structure, and optic disc simulation structure are all located on the inner rear wall of the retinal simulation shell 4. The central area of ​​the vascular simulation structure 12 is the surgical operation area 19. A spherical operation hole 10 penetrates the scleral simulation shell 2, the uveal simulation shell 3, and the retinal simulation shell 4. External surgical instruments can be inserted into the surgical operation area 19 through the spherical operation hole 10 to simulate surgical procedures, such as the insertion of the phacoemulsification needle in cataract surgery and strabismus surgery. This makes surgical practice more realistic and operable, compensating for the lack of a realistic operational experience in virtual simulation systems.

[0027] Furthermore, as a preferred implementation, the spherical shell, iris simulation structure 5, ciliary process simulation structure 6, lens simulation structure 7, and suspensory ligament simulation structure 8 are all made of silicone. Silicone possesses excellent flexibility, elasticity, and biocompatibility, enabling it to effectively simulate the texture of human eye tissues. For example, the silicone outer shell can simulate the elasticity and toughness of the sclera, while the internal silicone shell can simulate the softness of intraocular tissues. This allows trainees to obtain a tactile experience close to that of a real human eye when touching and manipulating the simulated eyeball, effectively solving the problem of unrealistic tactile feedback in existing training tools.

[0028] Furthermore, as a preferred embodiment, a corneal simulation structure 11 is provided at the front end of the spherical shell. The corneal simulation structure 11 is used to simulate the corneal portion of the eyeball, further improving the overall structure of the simulated eyeball, making it more consistent with the combined shape of the human eye and orbit, which helps trainees better simulate the position and state of the eyeball within the orbit during surgical practice, enhancing the realism of surgical practice.

[0029] In this embodiment, the size of an adult eyeball is used as an example. The iris is the foremost part of the vascular membrane in the eyeball. The iris simulation structure 5 is located behind the corneal simulation structure 11 and in front of the lens simulation structure 7, with the central circular opening serving as the pupil. The iris simulation structure 5 is positioned 3-4 mm from the anterior apex of the corneal simulation structure 11, and the lens simulation structure 7 is located 5-6 mm behind the iris simulation structure 5. The suspensory ligament simulation structure 8 is positioned 6-7 mm from the anterior apex of the corneal simulation structure 11, and the ciliary process simulation structure 6 is positioned 7-8 mm from the anterior apex of the corneal simulation structure 11.

[0030] Furthermore, as a preferred embodiment, a medial rectus muscle simulation structure 13 and a lateral rectus muscle simulation structure 14 are provided on the left and right sides of the spherical shell. Specifically, the medial rectus muscle simulation structure 13 is provided on the left side of the spherical shell, and the lateral rectus muscle simulation structure 14 is provided on the right side of the spherical shell; alternatively, the lateral rectus muscle simulation structure 14 is provided on the left side of the spherical shell, and the medial rectus muscle simulation structure 13 is provided on the right side of the spherical shell. The medial rectus muscle simulation structure 13 is used to simulate the medial rectus muscle of the human eyeball, and the lateral rectus muscle simulation structure 14 is used to simulate the lateral rectus muscle of the human eyeball.

[0031] Furthermore, as a preferred embodiment, a superior rectus muscle simulation structure 15 and a inferior rectus muscle simulation structure 16 are provided on the upper and lower sides of the spherical shell. The superior rectus muscle simulation structure 15 is provided on the upper side of the spherical shell, and the inferior rectus muscle simulation structure 16 is provided on the lower side of the spherical shell. The superior rectus muscle simulation structure 15 is used to simulate the superior rectus muscle of the human eyeball, and the inferior rectus muscle simulation structure 16 is used to simulate the inferior rectus muscle of the human eyeball.

[0032] Furthermore, as a preferred embodiment, the upper and lower sides of the spherical shell are also provided with a superior oblique muscle simulation structure 17 and a inferior oblique muscle simulation structure 18. The upper side of the spherical shell is provided with a superior oblique muscle simulation structure 17, and the lower side of the spherical shell is provided with a inferior oblique muscle simulation structure 18. The superior oblique muscle simulation structure 17 is used to simulate the superior oblique muscle of the human eye, and the inferior oblique muscle simulation structure 18 is used to simulate the inferior oblique muscle of the human eye.

[0033] In this embodiment, see Figure 4 As shown, a support rod 20 can be provided at the lower end of the spherical shell, a base can be provided at the lower end of the support rod 20, and a hole that mates with the support rod 20 is provided at the lower end of the spherical shell.

[0034] In this embodiment, the colors of the hemispherical shell 1, sclera simulation shell 2, uvea simulation shell 3, retina simulation shell 4, iris simulation structure 5, ciliary process simulation structure 6, lens simulation structure 7, suspensory ligament simulation structure 8, simulated pupil 9, spherical wall operating hole 10, cornea simulation structure 11, blood vessel simulation structure 12, medial rectus muscle simulation structure 13, lateral rectus muscle simulation structure 14, superior rectus muscle simulation structure 15, inferior rectus muscle simulation structure 16, superior oblique muscle simulation structure 17, and inferior oblique muscle simulation structure 18 can be selected as needed.

[0035] When in use, trainees can insert surgical instruments through the spherical operation hole 10 into the surgical operation area 19 in the retinal simulation shell 4 to perform simulated surgical operations. Alternatively, the overall structure can be disassembled into two halves as needed to facilitate realistic observation of the internal structure.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simulated eyeball for ophthalmic surgical practice, characterized by, The device includes a spherical shell formed by splicing two hemispherical shells. The spherical shell includes a sclera simulation shell, an uvea simulation shell, and a retina simulation shell. The uvea simulation shell is located inside the sclera simulation shell, and the retina simulation shell is located inside the uvea simulation shell. An iris simulation structure, a ciliary process simulation structure, a lens simulation structure, and a suspensory ligament simulation structure are located at a designated position inside the front end of the spherical shell. The circular hole in the middle of the iris simulation structure is a simulated pupil. The iris simulation structure is connected to the ciliary process simulation structure. The lens simulation structure is located behind the iris simulation structure. The suspensory ligament simulation structure connects the lens simulation structure and the ciliary process simulation structure. Three spherical wall operation holes are located at a predetermined position at the front end of the spherical shell.

2. The simulated eyeball for ophthalmologic surgery practice according to claim 1, wherein The spherical shell, the iris simulation structure, the ciliary process simulation structure, the lens simulation structure, and the suspensory ligament simulation structure are all made of silicone.

3. The simulated eyeball for ophthalmic surgical practice as described in claim 1, characterized in that, The front end of the spherical shell is provided with a corneal simulation structure.

4. The simulated eyeball for ophthalmic surgical practice as described in claim 1, characterized in that, The rear end of the spherical shell is provided with a retina-simulated shell, an optic disc-simulated structure, a blood vessel-simulated structure, and a macular-simulated structure.

5. The simulated eyeball for ophthalmic surgical practice as described in claim 1, characterized in that, The spherical shell has medial rectus muscle simulation structures and lateral rectus muscle simulation structures on its left and right sides.

6. The simulated eyeball for ophthalmic surgical practice as described in claim 5, characterized in that, The upper and lower sides of the spherical shell are provided with upper rectus muscle simulation structures and lower rectus muscle simulation structures.

7. The simulated eyeball for ophthalmic surgical practice as described in claim 6, characterized in that, The upper and lower sides of the spherical shell are also provided with upper oblique muscle simulation structures and lower oblique muscle simulation structures.

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